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Obesity linked to smaller testes and possible infertility
new data suggest.
Testicular volume is a fertility marker directly related to sperm count that has halved in the past 40 years worldwide for unknown reasons. At the same time, childhood obesity has risen dramatically and infertility appears to have risen as well, Rossella Cannarella, MD, of the department of endocrinology and andrology, University of Catania (Italy), said at the annual meeting of the Endocrine Society.
According to recent Italian studies, between 14% and 23% of young men aged 18-19 had testicular hypotrophy. “Worryingly, we don’t know the reason for this hypotrophy. And therefore, they are at risk for future infertility,” Dr. Cannarella said during a press briefing.
Her study, which included a total of 264 male children and adolescents, also linked lower testicular volume to hyperinsulinemia and insulin resistance. “The testis is not quiescent in childhood and is sensitive to the hormone insulin. Obesity and metabolic impairment actually can have an effect and negative impact on Sertoli cell proliferation,” Dr. Cannarella said.
Screen testicular volume at all visits
If other studies confirm these results, she said that pediatricians should begin routinely assessing testicular volume at all visits as is now done with height and weight to identify early deflection of the testicular growth curve.
In addition, “include male infertility as a possible consequence of obesity in counseling of male obese children,” she advised.
Asked to comment, Amin Sedaghat Herati, MD, director of male infertility and men’s health at Johns Hopkins Hospital, and assistant professor of urology at Johns Hopkins Medicine, both in Baltimore, said in an interview: “I think what’s really interesting about this study is the association that they’ve made between testicular volume and obesity.”
But, he noted, “it does not implicate necessarily the development of infertility. It’s an extrapolation. So it’s a step towards the link between obesity and infertility, and it’s an important study to establish the association, but changes in testicular volume and even changes in semen panel don’t necessarily indicate fertility or infertility.”
The findings are “consistent with what we know as far as what obesity can potentially do to the activity of the cells in the testes. The authors are postulating that it’s more the support cells, called Sertoli cells, but I would say it’s probably all of the cells that are being affected by obesity and specifically elevated leptin levels,” Dr. Herati said.
He agrees with the recommendation that pediatricians screen all boys for testicular volume. “I agree it’s a good idea so they don’t miss any cases in which the testes don’t develop the way they should or any other conditions,” Dr. Herati said. “I think in general it’s a good practice, especially in the peripubertal stage, to make sure that kids are on the same growth curve and that they’re meeting their Tanner staging. [Pediatricians] should be looking at the size of the testes and tracking, maybe not at every visit, but at least on an annual basis.”
And, he noted, “I think any study that establishes a link that we can point to when we’re educating patients and parents is important.”
Links found between overweight/obesity, testicular hypotrophy
The study population included 61 male children and adolescents with normal weight, 53 with overweight, and 150 with obesity. Insulin resistance (Homeostatic Model Assessment for Insulin Resistance index ≥ 2.5) was present in 97 participants, 22 had prediabetes, and 3 had type 2 diabetes. Clinical data were collected retrospectively.
Among the boys aged 9-14 years, those with overweight and obesity had significantly lower testicular volume, compared with those of normal weight.
Those who were in Tanner Stage 1 were more likely to have overweight and obesity than those with normal weight, suggesting that “overweight and obese adolescents start puberty later than those of normal weight,” Dr. Cannarella said.
In the 14- to 16-year-old age group, those with insulin resistance had lower testicular volume, compared with those without insulin resistance (HOMA index < 2.5). The number of insulin-resistant adolescents was greater than that of controls in the Tanner stage 2 group.
In both the prepubertal (< 9 years) and pubertal (14-16 years) groups, hyperinsulinemia was associated with lower levels of testicular volume.
Hyperinsulinemia did not influence the timing of puberty onset.
No way to quantify the effect of obesity on fertility just yet
During a press briefing, Dr. Cannarella commented that obesity is likely just one of several factors influencing what appears to be an increase in male infertility over time. “It isn’t of course the only reason, but many factors in our environment have drastically changed, compared to 40 years ago, including the prevalence of heavy metals and endocrine disruptors, and of course, the change in habits and higher prevalence of metabolic disease. All of this has an impact on the proliferation of Sertoli cells in childhood and this may explain the trend toward the decline of sperm concentration and count.”
Longitudinal data are needed to establish cause and effect, she noted. “We need longitudinal studies that link the degrees of testicular volume with the degree of the sperm concentration and count starting from childhood and ending with the adult age. This is the missing link so far.”
Dr. Cannarella has reported no relevant financial relationships. Dr. Herati has reported being an advisor for Dadi, LiNA Medical, and Teleflex.
A version of this article first appeared on Medscape.com.
new data suggest.
Testicular volume is a fertility marker directly related to sperm count that has halved in the past 40 years worldwide for unknown reasons. At the same time, childhood obesity has risen dramatically and infertility appears to have risen as well, Rossella Cannarella, MD, of the department of endocrinology and andrology, University of Catania (Italy), said at the annual meeting of the Endocrine Society.
According to recent Italian studies, between 14% and 23% of young men aged 18-19 had testicular hypotrophy. “Worryingly, we don’t know the reason for this hypotrophy. And therefore, they are at risk for future infertility,” Dr. Cannarella said during a press briefing.
Her study, which included a total of 264 male children and adolescents, also linked lower testicular volume to hyperinsulinemia and insulin resistance. “The testis is not quiescent in childhood and is sensitive to the hormone insulin. Obesity and metabolic impairment actually can have an effect and negative impact on Sertoli cell proliferation,” Dr. Cannarella said.
Screen testicular volume at all visits
If other studies confirm these results, she said that pediatricians should begin routinely assessing testicular volume at all visits as is now done with height and weight to identify early deflection of the testicular growth curve.
In addition, “include male infertility as a possible consequence of obesity in counseling of male obese children,” she advised.
Asked to comment, Amin Sedaghat Herati, MD, director of male infertility and men’s health at Johns Hopkins Hospital, and assistant professor of urology at Johns Hopkins Medicine, both in Baltimore, said in an interview: “I think what’s really interesting about this study is the association that they’ve made between testicular volume and obesity.”
But, he noted, “it does not implicate necessarily the development of infertility. It’s an extrapolation. So it’s a step towards the link between obesity and infertility, and it’s an important study to establish the association, but changes in testicular volume and even changes in semen panel don’t necessarily indicate fertility or infertility.”
The findings are “consistent with what we know as far as what obesity can potentially do to the activity of the cells in the testes. The authors are postulating that it’s more the support cells, called Sertoli cells, but I would say it’s probably all of the cells that are being affected by obesity and specifically elevated leptin levels,” Dr. Herati said.
He agrees with the recommendation that pediatricians screen all boys for testicular volume. “I agree it’s a good idea so they don’t miss any cases in which the testes don’t develop the way they should or any other conditions,” Dr. Herati said. “I think in general it’s a good practice, especially in the peripubertal stage, to make sure that kids are on the same growth curve and that they’re meeting their Tanner staging. [Pediatricians] should be looking at the size of the testes and tracking, maybe not at every visit, but at least on an annual basis.”
And, he noted, “I think any study that establishes a link that we can point to when we’re educating patients and parents is important.”
Links found between overweight/obesity, testicular hypotrophy
The study population included 61 male children and adolescents with normal weight, 53 with overweight, and 150 with obesity. Insulin resistance (Homeostatic Model Assessment for Insulin Resistance index ≥ 2.5) was present in 97 participants, 22 had prediabetes, and 3 had type 2 diabetes. Clinical data were collected retrospectively.
Among the boys aged 9-14 years, those with overweight and obesity had significantly lower testicular volume, compared with those of normal weight.
Those who were in Tanner Stage 1 were more likely to have overweight and obesity than those with normal weight, suggesting that “overweight and obese adolescents start puberty later than those of normal weight,” Dr. Cannarella said.
In the 14- to 16-year-old age group, those with insulin resistance had lower testicular volume, compared with those without insulin resistance (HOMA index < 2.5). The number of insulin-resistant adolescents was greater than that of controls in the Tanner stage 2 group.
In both the prepubertal (< 9 years) and pubertal (14-16 years) groups, hyperinsulinemia was associated with lower levels of testicular volume.
Hyperinsulinemia did not influence the timing of puberty onset.
No way to quantify the effect of obesity on fertility just yet
During a press briefing, Dr. Cannarella commented that obesity is likely just one of several factors influencing what appears to be an increase in male infertility over time. “It isn’t of course the only reason, but many factors in our environment have drastically changed, compared to 40 years ago, including the prevalence of heavy metals and endocrine disruptors, and of course, the change in habits and higher prevalence of metabolic disease. All of this has an impact on the proliferation of Sertoli cells in childhood and this may explain the trend toward the decline of sperm concentration and count.”
Longitudinal data are needed to establish cause and effect, she noted. “We need longitudinal studies that link the degrees of testicular volume with the degree of the sperm concentration and count starting from childhood and ending with the adult age. This is the missing link so far.”
Dr. Cannarella has reported no relevant financial relationships. Dr. Herati has reported being an advisor for Dadi, LiNA Medical, and Teleflex.
A version of this article first appeared on Medscape.com.
new data suggest.
Testicular volume is a fertility marker directly related to sperm count that has halved in the past 40 years worldwide for unknown reasons. At the same time, childhood obesity has risen dramatically and infertility appears to have risen as well, Rossella Cannarella, MD, of the department of endocrinology and andrology, University of Catania (Italy), said at the annual meeting of the Endocrine Society.
According to recent Italian studies, between 14% and 23% of young men aged 18-19 had testicular hypotrophy. “Worryingly, we don’t know the reason for this hypotrophy. And therefore, they are at risk for future infertility,” Dr. Cannarella said during a press briefing.
Her study, which included a total of 264 male children and adolescents, also linked lower testicular volume to hyperinsulinemia and insulin resistance. “The testis is not quiescent in childhood and is sensitive to the hormone insulin. Obesity and metabolic impairment actually can have an effect and negative impact on Sertoli cell proliferation,” Dr. Cannarella said.
Screen testicular volume at all visits
If other studies confirm these results, she said that pediatricians should begin routinely assessing testicular volume at all visits as is now done with height and weight to identify early deflection of the testicular growth curve.
In addition, “include male infertility as a possible consequence of obesity in counseling of male obese children,” she advised.
Asked to comment, Amin Sedaghat Herati, MD, director of male infertility and men’s health at Johns Hopkins Hospital, and assistant professor of urology at Johns Hopkins Medicine, both in Baltimore, said in an interview: “I think what’s really interesting about this study is the association that they’ve made between testicular volume and obesity.”
But, he noted, “it does not implicate necessarily the development of infertility. It’s an extrapolation. So it’s a step towards the link between obesity and infertility, and it’s an important study to establish the association, but changes in testicular volume and even changes in semen panel don’t necessarily indicate fertility or infertility.”
The findings are “consistent with what we know as far as what obesity can potentially do to the activity of the cells in the testes. The authors are postulating that it’s more the support cells, called Sertoli cells, but I would say it’s probably all of the cells that are being affected by obesity and specifically elevated leptin levels,” Dr. Herati said.
He agrees with the recommendation that pediatricians screen all boys for testicular volume. “I agree it’s a good idea so they don’t miss any cases in which the testes don’t develop the way they should or any other conditions,” Dr. Herati said. “I think in general it’s a good practice, especially in the peripubertal stage, to make sure that kids are on the same growth curve and that they’re meeting their Tanner staging. [Pediatricians] should be looking at the size of the testes and tracking, maybe not at every visit, but at least on an annual basis.”
And, he noted, “I think any study that establishes a link that we can point to when we’re educating patients and parents is important.”
Links found between overweight/obesity, testicular hypotrophy
The study population included 61 male children and adolescents with normal weight, 53 with overweight, and 150 with obesity. Insulin resistance (Homeostatic Model Assessment for Insulin Resistance index ≥ 2.5) was present in 97 participants, 22 had prediabetes, and 3 had type 2 diabetes. Clinical data were collected retrospectively.
Among the boys aged 9-14 years, those with overweight and obesity had significantly lower testicular volume, compared with those of normal weight.
Those who were in Tanner Stage 1 were more likely to have overweight and obesity than those with normal weight, suggesting that “overweight and obese adolescents start puberty later than those of normal weight,” Dr. Cannarella said.
In the 14- to 16-year-old age group, those with insulin resistance had lower testicular volume, compared with those without insulin resistance (HOMA index < 2.5). The number of insulin-resistant adolescents was greater than that of controls in the Tanner stage 2 group.
In both the prepubertal (< 9 years) and pubertal (14-16 years) groups, hyperinsulinemia was associated with lower levels of testicular volume.
Hyperinsulinemia did not influence the timing of puberty onset.
No way to quantify the effect of obesity on fertility just yet
During a press briefing, Dr. Cannarella commented that obesity is likely just one of several factors influencing what appears to be an increase in male infertility over time. “It isn’t of course the only reason, but many factors in our environment have drastically changed, compared to 40 years ago, including the prevalence of heavy metals and endocrine disruptors, and of course, the change in habits and higher prevalence of metabolic disease. All of this has an impact on the proliferation of Sertoli cells in childhood and this may explain the trend toward the decline of sperm concentration and count.”
Longitudinal data are needed to establish cause and effect, she noted. “We need longitudinal studies that link the degrees of testicular volume with the degree of the sperm concentration and count starting from childhood and ending with the adult age. This is the missing link so far.”
Dr. Cannarella has reported no relevant financial relationships. Dr. Herati has reported being an advisor for Dadi, LiNA Medical, and Teleflex.
A version of this article first appeared on Medscape.com.
FROM ENDO 2022
New data, film highlight islet cell transplantation progress
New data and a new documentary called “The Human Trial” together illuminate the hard work, sacrifice, and slow, iterative progress in the long search for a biological cure for type 1 diabetes.
Opening in select theaters on June 24, the film was written by Los Angeles filmmaker Lisa Hepner, who has type 1 diabetes, and codirected by Ms. Hepner and her husband Guy Mossman, who also filmed it. The couple co-own a film production company.
“The Human Trial” follows the personal journeys of two of the first participants in ViaCyte’s early phase 2 trial of stem cell–derived islet cell transplants, as well as those of the investigators and Ms. Hepner herself, who narrates and appears in the film, interweaving her own experience with type 1 diabetes while acting as a “bridge” between the trial’s participants and scientists. The film spans 7 years of the trial.
The timing of the film’s opening happens to follow presentations at two major medical meetings in early June of more recent islet cell transplantation data from ViaCyte and two other companies, Sernova and Vertex. Each is taking a different practical approach, with the most effective and safe technique yet to be determined.
But all are pursuing the same goal: A biological “cure” for type 1 diabetes with the aim of restoring fully functioning islet cells that can produce insulin and keep blood sugar levels in target range. Ultimately, the hope is to eliminate the need for both exogenous insulin and immunosuppression for all people with type 1 diabetes.
“Cell therapy is an attempt to drastically and substantially change the paradigm of how we actually treat type 1 diabetes,” Manasi S. Jaiman, MD, pediatric endocrinologist and chief medical officer at ViaCyte, said during a presentation at the annual meeting of the Endocrine Society.
Transplantation of cadaver-derived pancreatic islet cells to treat type 1 diabetes dates back more than 20 years to the landmark Edmonton Protocol, with many refinements since. About 1,500 recipients have received them, and roughly a quarter has maintained insulin independence after 10 years, Dr. Jaiman said.
More recently, islets derived from stem cells – either embryonic or autologous – have been used to address the supply and quality problems that arise from cadaveric (dead) donors.
Still, though, the need for lifelong immune suppression means the only current recipients are people with type 1 diabetes for whom the risk of diabetes outweighs that of immune suppression, such as those with hypoglycemic unawareness or extreme glucose swings.
Many research efforts are underway to counter the need for immune suppression by a variety of techniques including cell encapsulation or gene modification.
While the data thus far are encouraging, most of the reports align with what Ms. Hepner says in the film: “We all want stories with a beginning, middle, and end where all the loose pieces fit together. But clinical research is messy and hard. It doesn’t fit into a tidy headline, no matter how much you want it to.”
Companies use different approaches for transplanting islets
At ENDO 2022, Dr. Jaiman presented results for three patients who received pancreatic precursor (PEC-01) cells derived from ViaCyte’s proprietary pluripotent stem cell line. The cells are housed in an open delivery device about the size of a standard bandage to allow direct vascularization and are implanted in a patient’s forearm. An earlier version of the device was used in the two patients in “The Human Trial.”
All three patients experienced improved blood glucose levels with lower daily insulin doses and a rise from undetectable C-peptide to levels above 0.3 ng/mL. Of the three, the best results were seen in a 52-year-old woman with type 1 diabetes for 36 years complicated by hypoglycemic unawareness. At 1-year post transplant, her hemoglobin A1c dropped from 7.4% to 6.9%, and time in range [of ideal blood glucose] from 55% to 94%, plus she had a reduction in daily exogenous insulin use of 70%. However, at 18 months her time-in-range had dropped to about 75%.
“We are watching very closely to see what this means,” Dr. Jaiman said.
Further optimization of the approach is planned. “We’re still waiting on the bulk of the data and analyzing it ... We do realize this is a journey but we’re very excited by where we are,” she enthused.
In February 2022, ViaCyte announced it had teamed up with CRISPR Therapeutics to develop an allogeneic, gene-edited stem cell-derived product designed to produce insulin while at the same time evading the immune system.
Preliminary data from another company, Sernova, using a pouch device were presented at the 2022 annual scientific sessions of the American Diabetes Association by Piotr J. Bachul, MD, of the Transplantation Institute at the University of Chicago.
The Sernova Cell Pouch System containing cadaver islets was successfully transplanted into the abdominal wall of six of seven patients. After waiting a month to allow for vascularization, the cells are then placed into the pouch (as opposed to ViaCyte’s method where they are implanted together). The first three patients achieved islet cell graft function – with positive C-peptide – for up to 1 year, although all also required supplemental transplants into the portal vein to achieve insulin independence.
In May 2022, Sernova announced a partnership with Evotec to develop a product that will combine induced pluripotent stem cell (iPSC)-based beta cells for use with the Cell Pouch System.
Clinical testing is scheduled to begin in 2024, a Sernova representative told this news organization.
And as reported earlier in June, findings from Vertex Pharmaceuticals showed success in two patients who received that company›s investigational allogeneic stem-cell derived islets (VX-880), with the first person completely insulin independent 9 months post transplant.
In contrast to the other two companies, Vertex’s approach is to transplant the cells directly to the hepatic portal vein rather than into a subcutaneous pouch.
“The only space that has ever worked efficiently for islets is the liver because they immediately get blood. ... The subcutaneous space is an interesting place, but the problem is it’s not very well vascularized,” James F. Markmann, MD, PhD, chief of the division of transplant surgery at Massachusetts General Hospital, Boston, who worked on the Vertex trials, told this news organization.
However, the Sernova representative countered: “With the Cell Pouch transplant, not only can surgeons avoid the risks associated with [hepatic] portal vein infusion – including immediate blood-mediated inflammatory reaction, which is known to kill a large proportion of infused islets – but also liver pathologies.”
Furthermore, the cells remaining in the pouch “may be entirely removed from the patient in the event of a subsequently detected cell quality issue,” which isn’t possible with cells delivered into the portal vein.
“I think it will be interesting how it plays out,” Dr. Markmann said, referring to the field as a whole.
‘The Human Trial’ spotlights the real people behind the data
“The Human Trial” ties together the lives of two young adult study participants: a mother named Maren Badger, who qualified for the study because she regularly experienced severe low blood sugar accompanied by seizures, and Greg Romero, a father who has sight-threatening diabetic retinopathy and other complications, as well as financial hardship.
The film chronicles their experiences over 7 years after receiving the transplant. It’s not easy for either of them to undergo all the implantation and explantation procedures as well as cope with the uncertainty as to whether the transplanted cells are working.
At the same time, the researchers’ emotional and sometimes frustrating journey is shown, as are scenes following company executives to Saudi Arabia and Japan in their pursuit of trial funding.
Ms. Hepner herself is featured pursuing the film’s storyline by frequently questioning company executives, in person and virtually, as well as telling her own story.
A visit to the Banting House Historic Site in London, Ontario, with her young son gives Ms. Hepner the opportunity to explain that after Canadian surgeon Frederick Banting discovered insulin, he sold the patent to the University of Toronto for one dollar.
“One hundred years ago, insulin wasn’t a business. It was a medical breakthrough that saved millions of lives. When Banting accepted his Nobel [Prize], he famously said: ‘Insulin doesn’t belong to me, it belongs to the world.’ ... Now, there’s a $245 billion industry designed to manage our disease,” Ms. Hepner says in the film.
But, she adds: “There’s a catch-22: Biotech needs big pharma’s profits to fund clinical trials. Without that support the researchers wouldn’t have gotten this far. Like most relationships, it’s complicated.”
Nonetheless, the film ultimately uplifts. As one company executive says: “Data show the product is producing insulin in patients for the first time. ... This is a big deal. We know now that the cells work.
“We didn’t know that 5 years ago. All the pieces are there, it’s just a matter of completing the puzzle.”
The ViaCyte work presented by Dr. Jaiman received funding from the European Commission Horizon 2020, the California Institute for Regenerative Medicine, and the JDRF. Jaiman is an employee of ViaCyte. The Sernova work was funded by Sernova and JDRF. Dr. Markmann has reported serving on advisory boards for iTolerance, eGenesis, and Qihan Biotech, and being a consultant for Vertex Pharmaceuticals. Ms. Hepner and Mr. Mossman run LA-based Vox Pop Films, a production company specializing in nonfiction content and commercials. “The Human Trial” was made in collaboration with the nonprofit Beyond Type 1.
A version of this article first appeared on Medscape.com.
New data and a new documentary called “The Human Trial” together illuminate the hard work, sacrifice, and slow, iterative progress in the long search for a biological cure for type 1 diabetes.
Opening in select theaters on June 24, the film was written by Los Angeles filmmaker Lisa Hepner, who has type 1 diabetes, and codirected by Ms. Hepner and her husband Guy Mossman, who also filmed it. The couple co-own a film production company.
“The Human Trial” follows the personal journeys of two of the first participants in ViaCyte’s early phase 2 trial of stem cell–derived islet cell transplants, as well as those of the investigators and Ms. Hepner herself, who narrates and appears in the film, interweaving her own experience with type 1 diabetes while acting as a “bridge” between the trial’s participants and scientists. The film spans 7 years of the trial.
The timing of the film’s opening happens to follow presentations at two major medical meetings in early June of more recent islet cell transplantation data from ViaCyte and two other companies, Sernova and Vertex. Each is taking a different practical approach, with the most effective and safe technique yet to be determined.
But all are pursuing the same goal: A biological “cure” for type 1 diabetes with the aim of restoring fully functioning islet cells that can produce insulin and keep blood sugar levels in target range. Ultimately, the hope is to eliminate the need for both exogenous insulin and immunosuppression for all people with type 1 diabetes.
“Cell therapy is an attempt to drastically and substantially change the paradigm of how we actually treat type 1 diabetes,” Manasi S. Jaiman, MD, pediatric endocrinologist and chief medical officer at ViaCyte, said during a presentation at the annual meeting of the Endocrine Society.
Transplantation of cadaver-derived pancreatic islet cells to treat type 1 diabetes dates back more than 20 years to the landmark Edmonton Protocol, with many refinements since. About 1,500 recipients have received them, and roughly a quarter has maintained insulin independence after 10 years, Dr. Jaiman said.
More recently, islets derived from stem cells – either embryonic or autologous – have been used to address the supply and quality problems that arise from cadaveric (dead) donors.
Still, though, the need for lifelong immune suppression means the only current recipients are people with type 1 diabetes for whom the risk of diabetes outweighs that of immune suppression, such as those with hypoglycemic unawareness or extreme glucose swings.
Many research efforts are underway to counter the need for immune suppression by a variety of techniques including cell encapsulation or gene modification.
While the data thus far are encouraging, most of the reports align with what Ms. Hepner says in the film: “We all want stories with a beginning, middle, and end where all the loose pieces fit together. But clinical research is messy and hard. It doesn’t fit into a tidy headline, no matter how much you want it to.”
Companies use different approaches for transplanting islets
At ENDO 2022, Dr. Jaiman presented results for three patients who received pancreatic precursor (PEC-01) cells derived from ViaCyte’s proprietary pluripotent stem cell line. The cells are housed in an open delivery device about the size of a standard bandage to allow direct vascularization and are implanted in a patient’s forearm. An earlier version of the device was used in the two patients in “The Human Trial.”
All three patients experienced improved blood glucose levels with lower daily insulin doses and a rise from undetectable C-peptide to levels above 0.3 ng/mL. Of the three, the best results were seen in a 52-year-old woman with type 1 diabetes for 36 years complicated by hypoglycemic unawareness. At 1-year post transplant, her hemoglobin A1c dropped from 7.4% to 6.9%, and time in range [of ideal blood glucose] from 55% to 94%, plus she had a reduction in daily exogenous insulin use of 70%. However, at 18 months her time-in-range had dropped to about 75%.
“We are watching very closely to see what this means,” Dr. Jaiman said.
Further optimization of the approach is planned. “We’re still waiting on the bulk of the data and analyzing it ... We do realize this is a journey but we’re very excited by where we are,” she enthused.
In February 2022, ViaCyte announced it had teamed up with CRISPR Therapeutics to develop an allogeneic, gene-edited stem cell-derived product designed to produce insulin while at the same time evading the immune system.
Preliminary data from another company, Sernova, using a pouch device were presented at the 2022 annual scientific sessions of the American Diabetes Association by Piotr J. Bachul, MD, of the Transplantation Institute at the University of Chicago.
The Sernova Cell Pouch System containing cadaver islets was successfully transplanted into the abdominal wall of six of seven patients. After waiting a month to allow for vascularization, the cells are then placed into the pouch (as opposed to ViaCyte’s method where they are implanted together). The first three patients achieved islet cell graft function – with positive C-peptide – for up to 1 year, although all also required supplemental transplants into the portal vein to achieve insulin independence.
In May 2022, Sernova announced a partnership with Evotec to develop a product that will combine induced pluripotent stem cell (iPSC)-based beta cells for use with the Cell Pouch System.
Clinical testing is scheduled to begin in 2024, a Sernova representative told this news organization.
And as reported earlier in June, findings from Vertex Pharmaceuticals showed success in two patients who received that company›s investigational allogeneic stem-cell derived islets (VX-880), with the first person completely insulin independent 9 months post transplant.
In contrast to the other two companies, Vertex’s approach is to transplant the cells directly to the hepatic portal vein rather than into a subcutaneous pouch.
“The only space that has ever worked efficiently for islets is the liver because they immediately get blood. ... The subcutaneous space is an interesting place, but the problem is it’s not very well vascularized,” James F. Markmann, MD, PhD, chief of the division of transplant surgery at Massachusetts General Hospital, Boston, who worked on the Vertex trials, told this news organization.
However, the Sernova representative countered: “With the Cell Pouch transplant, not only can surgeons avoid the risks associated with [hepatic] portal vein infusion – including immediate blood-mediated inflammatory reaction, which is known to kill a large proportion of infused islets – but also liver pathologies.”
Furthermore, the cells remaining in the pouch “may be entirely removed from the patient in the event of a subsequently detected cell quality issue,” which isn’t possible with cells delivered into the portal vein.
“I think it will be interesting how it plays out,” Dr. Markmann said, referring to the field as a whole.
‘The Human Trial’ spotlights the real people behind the data
“The Human Trial” ties together the lives of two young adult study participants: a mother named Maren Badger, who qualified for the study because she regularly experienced severe low blood sugar accompanied by seizures, and Greg Romero, a father who has sight-threatening diabetic retinopathy and other complications, as well as financial hardship.
The film chronicles their experiences over 7 years after receiving the transplant. It’s not easy for either of them to undergo all the implantation and explantation procedures as well as cope with the uncertainty as to whether the transplanted cells are working.
At the same time, the researchers’ emotional and sometimes frustrating journey is shown, as are scenes following company executives to Saudi Arabia and Japan in their pursuit of trial funding.
Ms. Hepner herself is featured pursuing the film’s storyline by frequently questioning company executives, in person and virtually, as well as telling her own story.
A visit to the Banting House Historic Site in London, Ontario, with her young son gives Ms. Hepner the opportunity to explain that after Canadian surgeon Frederick Banting discovered insulin, he sold the patent to the University of Toronto for one dollar.
“One hundred years ago, insulin wasn’t a business. It was a medical breakthrough that saved millions of lives. When Banting accepted his Nobel [Prize], he famously said: ‘Insulin doesn’t belong to me, it belongs to the world.’ ... Now, there’s a $245 billion industry designed to manage our disease,” Ms. Hepner says in the film.
But, she adds: “There’s a catch-22: Biotech needs big pharma’s profits to fund clinical trials. Without that support the researchers wouldn’t have gotten this far. Like most relationships, it’s complicated.”
Nonetheless, the film ultimately uplifts. As one company executive says: “Data show the product is producing insulin in patients for the first time. ... This is a big deal. We know now that the cells work.
“We didn’t know that 5 years ago. All the pieces are there, it’s just a matter of completing the puzzle.”
The ViaCyte work presented by Dr. Jaiman received funding from the European Commission Horizon 2020, the California Institute for Regenerative Medicine, and the JDRF. Jaiman is an employee of ViaCyte. The Sernova work was funded by Sernova and JDRF. Dr. Markmann has reported serving on advisory boards for iTolerance, eGenesis, and Qihan Biotech, and being a consultant for Vertex Pharmaceuticals. Ms. Hepner and Mr. Mossman run LA-based Vox Pop Films, a production company specializing in nonfiction content and commercials. “The Human Trial” was made in collaboration with the nonprofit Beyond Type 1.
A version of this article first appeared on Medscape.com.
New data and a new documentary called “The Human Trial” together illuminate the hard work, sacrifice, and slow, iterative progress in the long search for a biological cure for type 1 diabetes.
Opening in select theaters on June 24, the film was written by Los Angeles filmmaker Lisa Hepner, who has type 1 diabetes, and codirected by Ms. Hepner and her husband Guy Mossman, who also filmed it. The couple co-own a film production company.
“The Human Trial” follows the personal journeys of two of the first participants in ViaCyte’s early phase 2 trial of stem cell–derived islet cell transplants, as well as those of the investigators and Ms. Hepner herself, who narrates and appears in the film, interweaving her own experience with type 1 diabetes while acting as a “bridge” between the trial’s participants and scientists. The film spans 7 years of the trial.
The timing of the film’s opening happens to follow presentations at two major medical meetings in early June of more recent islet cell transplantation data from ViaCyte and two other companies, Sernova and Vertex. Each is taking a different practical approach, with the most effective and safe technique yet to be determined.
But all are pursuing the same goal: A biological “cure” for type 1 diabetes with the aim of restoring fully functioning islet cells that can produce insulin and keep blood sugar levels in target range. Ultimately, the hope is to eliminate the need for both exogenous insulin and immunosuppression for all people with type 1 diabetes.
“Cell therapy is an attempt to drastically and substantially change the paradigm of how we actually treat type 1 diabetes,” Manasi S. Jaiman, MD, pediatric endocrinologist and chief medical officer at ViaCyte, said during a presentation at the annual meeting of the Endocrine Society.
Transplantation of cadaver-derived pancreatic islet cells to treat type 1 diabetes dates back more than 20 years to the landmark Edmonton Protocol, with many refinements since. About 1,500 recipients have received them, and roughly a quarter has maintained insulin independence after 10 years, Dr. Jaiman said.
More recently, islets derived from stem cells – either embryonic or autologous – have been used to address the supply and quality problems that arise from cadaveric (dead) donors.
Still, though, the need for lifelong immune suppression means the only current recipients are people with type 1 diabetes for whom the risk of diabetes outweighs that of immune suppression, such as those with hypoglycemic unawareness or extreme glucose swings.
Many research efforts are underway to counter the need for immune suppression by a variety of techniques including cell encapsulation or gene modification.
While the data thus far are encouraging, most of the reports align with what Ms. Hepner says in the film: “We all want stories with a beginning, middle, and end where all the loose pieces fit together. But clinical research is messy and hard. It doesn’t fit into a tidy headline, no matter how much you want it to.”
Companies use different approaches for transplanting islets
At ENDO 2022, Dr. Jaiman presented results for three patients who received pancreatic precursor (PEC-01) cells derived from ViaCyte’s proprietary pluripotent stem cell line. The cells are housed in an open delivery device about the size of a standard bandage to allow direct vascularization and are implanted in a patient’s forearm. An earlier version of the device was used in the two patients in “The Human Trial.”
All three patients experienced improved blood glucose levels with lower daily insulin doses and a rise from undetectable C-peptide to levels above 0.3 ng/mL. Of the three, the best results were seen in a 52-year-old woman with type 1 diabetes for 36 years complicated by hypoglycemic unawareness. At 1-year post transplant, her hemoglobin A1c dropped from 7.4% to 6.9%, and time in range [of ideal blood glucose] from 55% to 94%, plus she had a reduction in daily exogenous insulin use of 70%. However, at 18 months her time-in-range had dropped to about 75%.
“We are watching very closely to see what this means,” Dr. Jaiman said.
Further optimization of the approach is planned. “We’re still waiting on the bulk of the data and analyzing it ... We do realize this is a journey but we’re very excited by where we are,” she enthused.
In February 2022, ViaCyte announced it had teamed up with CRISPR Therapeutics to develop an allogeneic, gene-edited stem cell-derived product designed to produce insulin while at the same time evading the immune system.
Preliminary data from another company, Sernova, using a pouch device were presented at the 2022 annual scientific sessions of the American Diabetes Association by Piotr J. Bachul, MD, of the Transplantation Institute at the University of Chicago.
The Sernova Cell Pouch System containing cadaver islets was successfully transplanted into the abdominal wall of six of seven patients. After waiting a month to allow for vascularization, the cells are then placed into the pouch (as opposed to ViaCyte’s method where they are implanted together). The first three patients achieved islet cell graft function – with positive C-peptide – for up to 1 year, although all also required supplemental transplants into the portal vein to achieve insulin independence.
In May 2022, Sernova announced a partnership with Evotec to develop a product that will combine induced pluripotent stem cell (iPSC)-based beta cells for use with the Cell Pouch System.
Clinical testing is scheduled to begin in 2024, a Sernova representative told this news organization.
And as reported earlier in June, findings from Vertex Pharmaceuticals showed success in two patients who received that company›s investigational allogeneic stem-cell derived islets (VX-880), with the first person completely insulin independent 9 months post transplant.
In contrast to the other two companies, Vertex’s approach is to transplant the cells directly to the hepatic portal vein rather than into a subcutaneous pouch.
“The only space that has ever worked efficiently for islets is the liver because they immediately get blood. ... The subcutaneous space is an interesting place, but the problem is it’s not very well vascularized,” James F. Markmann, MD, PhD, chief of the division of transplant surgery at Massachusetts General Hospital, Boston, who worked on the Vertex trials, told this news organization.
However, the Sernova representative countered: “With the Cell Pouch transplant, not only can surgeons avoid the risks associated with [hepatic] portal vein infusion – including immediate blood-mediated inflammatory reaction, which is known to kill a large proportion of infused islets – but also liver pathologies.”
Furthermore, the cells remaining in the pouch “may be entirely removed from the patient in the event of a subsequently detected cell quality issue,” which isn’t possible with cells delivered into the portal vein.
“I think it will be interesting how it plays out,” Dr. Markmann said, referring to the field as a whole.
‘The Human Trial’ spotlights the real people behind the data
“The Human Trial” ties together the lives of two young adult study participants: a mother named Maren Badger, who qualified for the study because she regularly experienced severe low blood sugar accompanied by seizures, and Greg Romero, a father who has sight-threatening diabetic retinopathy and other complications, as well as financial hardship.
The film chronicles their experiences over 7 years after receiving the transplant. It’s not easy for either of them to undergo all the implantation and explantation procedures as well as cope with the uncertainty as to whether the transplanted cells are working.
At the same time, the researchers’ emotional and sometimes frustrating journey is shown, as are scenes following company executives to Saudi Arabia and Japan in their pursuit of trial funding.
Ms. Hepner herself is featured pursuing the film’s storyline by frequently questioning company executives, in person and virtually, as well as telling her own story.
A visit to the Banting House Historic Site in London, Ontario, with her young son gives Ms. Hepner the opportunity to explain that after Canadian surgeon Frederick Banting discovered insulin, he sold the patent to the University of Toronto for one dollar.
“One hundred years ago, insulin wasn’t a business. It was a medical breakthrough that saved millions of lives. When Banting accepted his Nobel [Prize], he famously said: ‘Insulin doesn’t belong to me, it belongs to the world.’ ... Now, there’s a $245 billion industry designed to manage our disease,” Ms. Hepner says in the film.
But, she adds: “There’s a catch-22: Biotech needs big pharma’s profits to fund clinical trials. Without that support the researchers wouldn’t have gotten this far. Like most relationships, it’s complicated.”
Nonetheless, the film ultimately uplifts. As one company executive says: “Data show the product is producing insulin in patients for the first time. ... This is a big deal. We know now that the cells work.
“We didn’t know that 5 years ago. All the pieces are there, it’s just a matter of completing the puzzle.”
The ViaCyte work presented by Dr. Jaiman received funding from the European Commission Horizon 2020, the California Institute for Regenerative Medicine, and the JDRF. Jaiman is an employee of ViaCyte. The Sernova work was funded by Sernova and JDRF. Dr. Markmann has reported serving on advisory boards for iTolerance, eGenesis, and Qihan Biotech, and being a consultant for Vertex Pharmaceuticals. Ms. Hepner and Mr. Mossman run LA-based Vox Pop Films, a production company specializing in nonfiction content and commercials. “The Human Trial” was made in collaboration with the nonprofit Beyond Type 1.
A version of this article first appeared on Medscape.com.
COVID-19 Pandemic stress affected ovulation, not menstruation
ATLANTA – Disturbances in ovulation that didn’t produce any actual changes in the menstrual cycle of women were extremely common during the first year of the COVID-19 pandemic and were linked to emotional stress, according to the findings of an “experiment of nature” that allowed for comparison with women a decade earlier.
Findings from two studies of reproductive-age women, one conducted in 2006-2008 and the other in 2020-2021, were presented by Jerilynn C. Prior, MD, at the annual meeting of the Endocrine Society.
The comparison of the two time periods yielded several novel findings. “I was taught in medical school that when women don’t eat enough they lose their period. But what we now understand is there’s a graded response to various stressors, acting through the hypothalamus in a common pathway. There is a gradation of disturbances, some of which are subclinical or not obvious,” said Dr. Prior, professor of endocrinology and metabolism at the University of British Columbia, Vancouver.
Moreover, women’s menstrual cycle lengths didn’t differ across the two time periods, despite a dramatic 63% decrement in normal ovulatory function related to increased depression, anxiety, and outside stresses that the women reported in diaries.
“Assuming that regular cycles need normal ovulation is something we should just get out of our minds. It changes our concept about what’s normal if we only know about the cycle length,” she observed.
It will be critical going forward to see whether the ovulatory disturbances have resolved as the pandemic has shifted “because there’s strong evidence that ovulatory disturbances, even with normal cycle length, are related to bone loss and some evidence it’s related to early heart attacks, breast and endometrial cancers,” Dr. Prior said during a press conference.
Asked to comment, session moderator Genevieve Neal-Perry, MD, PhD, told this news organization: “I think what we can take away is that stress itself is a modifier of the way the brain and the gonads communicate with each other, and that then has an impact on ovulatory function.”
Dr. Neal-Perry noted that the association of stress and ovulatory disruption has been reported in various ways previously, but “clearly it doesn’t affect everyone. What we don’t know is who is most susceptible. There have been some studies showing a genetic predisposition and a genetic anomaly that actually makes them more susceptible to the impact of stress on the reproductive system.”
But the lack of data on weight change in the study cohorts is a limitation. “To me one of the more important questions was what was going on with weight. Just looking at a static number doesn’t tell you whether there were changes. We know that weight gain or weight loss can stress the reproductive axis,” noted Dr. Neal-Parry of the department of obstetrics and gynecology at the University of North Carolina at Chapel Hill.
‘Experiment of nature’ revealed invisible effect of pandemic stress
The women in both cohorts of the Menstruation Ovulation Study (MOS) were healthy volunteers aged 19-35 years recruited from the metropolitan Vancouver region. All were menstruating monthly and none were taking hormonal birth control. Recruitment for the second cohort had begun just prior to the March 2020 COVID-19 pandemic lockdown.
Interviewer-administered questionnaires (CaMos) covering demographics, socioeconomic status, and reproductive history, and daily diaries kept by the women (menstrual cycle diary) were identical for both cohorts.
Assessments of ovulation differed for the two studies but were cross-validated. For the earlier time period, ovulation was assessed by a threefold increase in follicular-to-luteal urinary progesterone (PdG). For the pandemic-era study, the validated quantitative basal temperature (QBT) method was used.
There were 301 women in the earlier cohort and 125 during the pandemic. Both were an average age of about 29 years and had a body mass index of about 24.3 kg/m2 (within the normal range). The pandemic cohort was more racially/ethnically diverse than the earlier one and more in-line with recent census data.
More of the women were nulliparous during the pandemic than earlier (92.7% vs. 80.4%; P = .002).
The distribution of menstrual cycle lengths didn’t differ, with both cohorts averaging about 30 days (P = .893). However, while 90% of the women in the earlier cohort ovulated normally, only 37% did during the pandemic, a highly significant difference (P < .0001).
Thus, during the pandemic, 63% of women had “silent ovulatory disturbances,” either with short luteal phases after ovulation or no ovulation, compared with just 10% in the earlier cohort, “which is remarkable, unbelievable actually,” Dr. Prior remarked.
The difference wasn’t explained by any of the demographic information collected either, including socioeconomic status, lifestyle, or reproductive history variables.
And it wasn’t because of COVID-19 vaccination, as the vaccine wasn’t available when most of the women were recruited, and of the 79 who were recruited during vaccine availability, only two received a COVID-19 vaccine during the study (and both had normal ovulation).
Employment changes, caring responsibilities, and worry likely causes
The information from the diaries was more revealing. Several diary components were far more common during the pandemic, including negative mood (feeling depressed or anxious, sleep problems, and outside stresses), self-worth, interest in sex, energy level, and appetite. All were significantly different between the two cohorts (P < .001) and between those with and without ovulatory disturbances.
“So menstrual cycle lengths and long cycles didn’t differ, but there was a much higher prevalence of silent or subclinical ovulatory disturbances, and these were related to the increased stresses that women recorded in their diaries. This means that the estrogen levels were pretty close to normal but the progesterone levels were remarkably decreased,” Dr. Prior said.
Interestingly, reported menstrual cramps were also significantly more common during the pandemic and associated with ovulatory disruption.
“That is a new observation because previously we’ve always thought that you needed to ovulate in order to even have cramps,” she commented.
Asked whether COVID-19 itself might have played a role, Dr. Prior said no woman in the study tested positive for the virus or had long COVID.
“As far as I’m aware, it was the changes in employment … and caring for elders and worry about illness in somebody you loved that was related,” she said.
Asked what she thinks the result would be if the study were conducted now, she said: “I don’t know. We’re still in a stressful time with inflation and not complete recovery, so probably the issue is still very present.”
Dr. Prior and Dr. Neal-Perry have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
ATLANTA – Disturbances in ovulation that didn’t produce any actual changes in the menstrual cycle of women were extremely common during the first year of the COVID-19 pandemic and were linked to emotional stress, according to the findings of an “experiment of nature” that allowed for comparison with women a decade earlier.
Findings from two studies of reproductive-age women, one conducted in 2006-2008 and the other in 2020-2021, were presented by Jerilynn C. Prior, MD, at the annual meeting of the Endocrine Society.
The comparison of the two time periods yielded several novel findings. “I was taught in medical school that when women don’t eat enough they lose their period. But what we now understand is there’s a graded response to various stressors, acting through the hypothalamus in a common pathway. There is a gradation of disturbances, some of which are subclinical or not obvious,” said Dr. Prior, professor of endocrinology and metabolism at the University of British Columbia, Vancouver.
Moreover, women’s menstrual cycle lengths didn’t differ across the two time periods, despite a dramatic 63% decrement in normal ovulatory function related to increased depression, anxiety, and outside stresses that the women reported in diaries.
“Assuming that regular cycles need normal ovulation is something we should just get out of our minds. It changes our concept about what’s normal if we only know about the cycle length,” she observed.
It will be critical going forward to see whether the ovulatory disturbances have resolved as the pandemic has shifted “because there’s strong evidence that ovulatory disturbances, even with normal cycle length, are related to bone loss and some evidence it’s related to early heart attacks, breast and endometrial cancers,” Dr. Prior said during a press conference.
Asked to comment, session moderator Genevieve Neal-Perry, MD, PhD, told this news organization: “I think what we can take away is that stress itself is a modifier of the way the brain and the gonads communicate with each other, and that then has an impact on ovulatory function.”
Dr. Neal-Perry noted that the association of stress and ovulatory disruption has been reported in various ways previously, but “clearly it doesn’t affect everyone. What we don’t know is who is most susceptible. There have been some studies showing a genetic predisposition and a genetic anomaly that actually makes them more susceptible to the impact of stress on the reproductive system.”
But the lack of data on weight change in the study cohorts is a limitation. “To me one of the more important questions was what was going on with weight. Just looking at a static number doesn’t tell you whether there were changes. We know that weight gain or weight loss can stress the reproductive axis,” noted Dr. Neal-Parry of the department of obstetrics and gynecology at the University of North Carolina at Chapel Hill.
‘Experiment of nature’ revealed invisible effect of pandemic stress
The women in both cohorts of the Menstruation Ovulation Study (MOS) were healthy volunteers aged 19-35 years recruited from the metropolitan Vancouver region. All were menstruating monthly and none were taking hormonal birth control. Recruitment for the second cohort had begun just prior to the March 2020 COVID-19 pandemic lockdown.
Interviewer-administered questionnaires (CaMos) covering demographics, socioeconomic status, and reproductive history, and daily diaries kept by the women (menstrual cycle diary) were identical for both cohorts.
Assessments of ovulation differed for the two studies but were cross-validated. For the earlier time period, ovulation was assessed by a threefold increase in follicular-to-luteal urinary progesterone (PdG). For the pandemic-era study, the validated quantitative basal temperature (QBT) method was used.
There were 301 women in the earlier cohort and 125 during the pandemic. Both were an average age of about 29 years and had a body mass index of about 24.3 kg/m2 (within the normal range). The pandemic cohort was more racially/ethnically diverse than the earlier one and more in-line with recent census data.
More of the women were nulliparous during the pandemic than earlier (92.7% vs. 80.4%; P = .002).
The distribution of menstrual cycle lengths didn’t differ, with both cohorts averaging about 30 days (P = .893). However, while 90% of the women in the earlier cohort ovulated normally, only 37% did during the pandemic, a highly significant difference (P < .0001).
Thus, during the pandemic, 63% of women had “silent ovulatory disturbances,” either with short luteal phases after ovulation or no ovulation, compared with just 10% in the earlier cohort, “which is remarkable, unbelievable actually,” Dr. Prior remarked.
The difference wasn’t explained by any of the demographic information collected either, including socioeconomic status, lifestyle, or reproductive history variables.
And it wasn’t because of COVID-19 vaccination, as the vaccine wasn’t available when most of the women were recruited, and of the 79 who were recruited during vaccine availability, only two received a COVID-19 vaccine during the study (and both had normal ovulation).
Employment changes, caring responsibilities, and worry likely causes
The information from the diaries was more revealing. Several diary components were far more common during the pandemic, including negative mood (feeling depressed or anxious, sleep problems, and outside stresses), self-worth, interest in sex, energy level, and appetite. All were significantly different between the two cohorts (P < .001) and between those with and without ovulatory disturbances.
“So menstrual cycle lengths and long cycles didn’t differ, but there was a much higher prevalence of silent or subclinical ovulatory disturbances, and these were related to the increased stresses that women recorded in their diaries. This means that the estrogen levels were pretty close to normal but the progesterone levels were remarkably decreased,” Dr. Prior said.
Interestingly, reported menstrual cramps were also significantly more common during the pandemic and associated with ovulatory disruption.
“That is a new observation because previously we’ve always thought that you needed to ovulate in order to even have cramps,” she commented.
Asked whether COVID-19 itself might have played a role, Dr. Prior said no woman in the study tested positive for the virus or had long COVID.
“As far as I’m aware, it was the changes in employment … and caring for elders and worry about illness in somebody you loved that was related,” she said.
Asked what she thinks the result would be if the study were conducted now, she said: “I don’t know. We’re still in a stressful time with inflation and not complete recovery, so probably the issue is still very present.”
Dr. Prior and Dr. Neal-Perry have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
ATLANTA – Disturbances in ovulation that didn’t produce any actual changes in the menstrual cycle of women were extremely common during the first year of the COVID-19 pandemic and were linked to emotional stress, according to the findings of an “experiment of nature” that allowed for comparison with women a decade earlier.
Findings from two studies of reproductive-age women, one conducted in 2006-2008 and the other in 2020-2021, were presented by Jerilynn C. Prior, MD, at the annual meeting of the Endocrine Society.
The comparison of the two time periods yielded several novel findings. “I was taught in medical school that when women don’t eat enough they lose their period. But what we now understand is there’s a graded response to various stressors, acting through the hypothalamus in a common pathway. There is a gradation of disturbances, some of which are subclinical or not obvious,” said Dr. Prior, professor of endocrinology and metabolism at the University of British Columbia, Vancouver.
Moreover, women’s menstrual cycle lengths didn’t differ across the two time periods, despite a dramatic 63% decrement in normal ovulatory function related to increased depression, anxiety, and outside stresses that the women reported in diaries.
“Assuming that regular cycles need normal ovulation is something we should just get out of our minds. It changes our concept about what’s normal if we only know about the cycle length,” she observed.
It will be critical going forward to see whether the ovulatory disturbances have resolved as the pandemic has shifted “because there’s strong evidence that ovulatory disturbances, even with normal cycle length, are related to bone loss and some evidence it’s related to early heart attacks, breast and endometrial cancers,” Dr. Prior said during a press conference.
Asked to comment, session moderator Genevieve Neal-Perry, MD, PhD, told this news organization: “I think what we can take away is that stress itself is a modifier of the way the brain and the gonads communicate with each other, and that then has an impact on ovulatory function.”
Dr. Neal-Perry noted that the association of stress and ovulatory disruption has been reported in various ways previously, but “clearly it doesn’t affect everyone. What we don’t know is who is most susceptible. There have been some studies showing a genetic predisposition and a genetic anomaly that actually makes them more susceptible to the impact of stress on the reproductive system.”
But the lack of data on weight change in the study cohorts is a limitation. “To me one of the more important questions was what was going on with weight. Just looking at a static number doesn’t tell you whether there were changes. We know that weight gain or weight loss can stress the reproductive axis,” noted Dr. Neal-Parry of the department of obstetrics and gynecology at the University of North Carolina at Chapel Hill.
‘Experiment of nature’ revealed invisible effect of pandemic stress
The women in both cohorts of the Menstruation Ovulation Study (MOS) were healthy volunteers aged 19-35 years recruited from the metropolitan Vancouver region. All were menstruating monthly and none were taking hormonal birth control. Recruitment for the second cohort had begun just prior to the March 2020 COVID-19 pandemic lockdown.
Interviewer-administered questionnaires (CaMos) covering demographics, socioeconomic status, and reproductive history, and daily diaries kept by the women (menstrual cycle diary) were identical for both cohorts.
Assessments of ovulation differed for the two studies but were cross-validated. For the earlier time period, ovulation was assessed by a threefold increase in follicular-to-luteal urinary progesterone (PdG). For the pandemic-era study, the validated quantitative basal temperature (QBT) method was used.
There were 301 women in the earlier cohort and 125 during the pandemic. Both were an average age of about 29 years and had a body mass index of about 24.3 kg/m2 (within the normal range). The pandemic cohort was more racially/ethnically diverse than the earlier one and more in-line with recent census data.
More of the women were nulliparous during the pandemic than earlier (92.7% vs. 80.4%; P = .002).
The distribution of menstrual cycle lengths didn’t differ, with both cohorts averaging about 30 days (P = .893). However, while 90% of the women in the earlier cohort ovulated normally, only 37% did during the pandemic, a highly significant difference (P < .0001).
Thus, during the pandemic, 63% of women had “silent ovulatory disturbances,” either with short luteal phases after ovulation or no ovulation, compared with just 10% in the earlier cohort, “which is remarkable, unbelievable actually,” Dr. Prior remarked.
The difference wasn’t explained by any of the demographic information collected either, including socioeconomic status, lifestyle, or reproductive history variables.
And it wasn’t because of COVID-19 vaccination, as the vaccine wasn’t available when most of the women were recruited, and of the 79 who were recruited during vaccine availability, only two received a COVID-19 vaccine during the study (and both had normal ovulation).
Employment changes, caring responsibilities, and worry likely causes
The information from the diaries was more revealing. Several diary components were far more common during the pandemic, including negative mood (feeling depressed or anxious, sleep problems, and outside stresses), self-worth, interest in sex, energy level, and appetite. All were significantly different between the two cohorts (P < .001) and between those with and without ovulatory disturbances.
“So menstrual cycle lengths and long cycles didn’t differ, but there was a much higher prevalence of silent or subclinical ovulatory disturbances, and these were related to the increased stresses that women recorded in their diaries. This means that the estrogen levels were pretty close to normal but the progesterone levels were remarkably decreased,” Dr. Prior said.
Interestingly, reported menstrual cramps were also significantly more common during the pandemic and associated with ovulatory disruption.
“That is a new observation because previously we’ve always thought that you needed to ovulate in order to even have cramps,” she commented.
Asked whether COVID-19 itself might have played a role, Dr. Prior said no woman in the study tested positive for the virus or had long COVID.
“As far as I’m aware, it was the changes in employment … and caring for elders and worry about illness in somebody you loved that was related,” she said.
Asked what she thinks the result would be if the study were conducted now, she said: “I don’t know. We’re still in a stressful time with inflation and not complete recovery, so probably the issue is still very present.”
Dr. Prior and Dr. Neal-Perry have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
AT ENDO 2022
Hypothyroidism: No more waiting to eat or drink with liquid thyroxine?
ATLANTA -- Liquid formulations of levothyroxine offer the possibility of allowing patients with hypothyroidism to take their medication with meals or coffee and skip the currently recommended 30- to 60-minute waiting period before doing either, new data suggest.
Because food, coffee, and certain medications can interfere with intestinal absorption of levothyroxine (also known as LT4), current guidelines recommend that the drug be taken in a fasting state, typically 30-60 minutes before breakfast. However, compliance may be difficult for some patients.
Now, a potential solution may come from new evidence that liquid levothyroxine formulations that bypass the gastric dissolution phase of absorption may mitigate the interference with food and coffee.
Findings from two bioavailability studies showing no difference in comparisons of Thyquidity (levothyroxine sodium oral solution, Vertice Pharma) with or without waiting periods before consuming coffee or a high-fat meal were presented at the annual meeting of the Endocrine Society (ENDO 2022), by Vertice Pharma Medical Director Kris Washington, PharmD.
And just last month, similar data were published in Thyroid for another levothyroxine oral solution, Tirosint-SOL (IBSA). No difference in pharmacokinetic properties were found with this product with a shorter versus a longer waiting period before consuming a high-fat meal.
Liquid thyroxine may be less affected by food/drink but is expensive
Both products have been approved by the U.S. Food and Drug Administration, but current labeling for both still calls for a 30- to 60-minute waiting period between taking the medication and eating or drinking. Thyquidity is an oral solution of 100 µg/mL levothyroxine sodium that has been shown to be bioequivalent to one of the most popular branded levothyroxine tablets, Synthroid (AbbVie), under fasting conditions. Tirosint-SOL is also an oral solution that comes in 15 different dosage ampules.
“It is important to note that while these findings are exciting and encouraging, we do want you to continue to follow the current FDA-approved label for Thyquidity, recommending that it be taken on an empty stomach 30-60 minutes prior to breakfast and that patients continue to follow all other label instructions,” Dr. Washington said during a press briefing at ENDO 2022.
When asked whether the new data would be submitted to the FDA for a possible amendment to this message, she replied: “We’re still discussing that. We’re exploring all options. ... This is fairly new data. ... It makes sense and certainly solves a lot of the challenges for people who can’t swallow or don’t choose to swallow, or the challenges of splitting or crushing with tablets.”
Asked to comment, Benjamin J. Gigliotti, MD, a clinical thyroidologist at the University of Rochester, New York, told this news organization: “Liquid levothyroxine has the potential to be a clinically useful formulation,” noting that these recent data corroborate prior findings from Europe and elsewhere that liquid levothyroxine is absorbed more rapidly and thus may be less impacted by food or beverages.
However, Dr. Gigliotti also pointed out, “I don’t think malabsorption is a major contributor to suboptimal treatment because if [patients] malabsorb the hormone, we typically just increase their dose a little bit or ask them to take it separately, and that works just fine for most people.”
And the higher cost of the liquid products is a major issue, he noted.
A quick search on GoodRx shows that the lowest price of Tirosint-SOL is $115.52 for a 1 month supply and Thyquidity is $181.04/month. “In the few patients where I tried to obtain Tirosint-SOL, it was not covered by insurance, even with a prior authorization,” Dr. Gigliotti commented.
In contrast, generic levothyroxine tablets are about $4/month, while a common brand name of levothyroxine tablets are $47.81/month.
“Until these liquid formulations are more widely covered by insurance for a reasonable copay, or come down in price compared to generic levothyroxine tablets, most of my patients have voiced that they’d rather deal with the inconveniences of a tablet compared to higher medication cost, especially with rising economic insecurity imposed by the COVID-19 pandemic and recent world events,” Dr. Gigliotti said.
Bioequivalence with shorter versus longer waits before coffee/breakfast
The Thyquidity coffee study was a single-center open-label, randomized, crossover study of 40 healthy adults randomized after a 10-hour overnight fast to 600 µg Thyquidity with water under fasting conditions or to the same dose given 5 minutes prior to drinking an 8-ounce cup of American coffee without milk or sweeteners. After a 40-day washout period, the same participants received the other treatment.
Mean serum thyroxine (T4) concentrations over 48 hours were nearly identical, demonstrating comparable bioavailability. Pharmacokinetics parameters, including area under the curve (AUC) and Cmax, were also comparable for both groups. The geometric least square mean ratios for baseline-adjusted LT4 were 96.0% for Cmax and 94% for AUC. And the corresponding 90% confidence intervals fell within the 80%-125% FDA acceptance range for absence of a food effect on bioavailability, said Dr. Washington when presenting the findings.
There was one adverse event, a decrease in blood glucose level, which was deemed to be mild and unrelated to study treatment. No deaths, serious adverse events, or discontinuations due to adverse events were reported. There were no significant changes in vital signs or on ECG.
In the second Thyquidity study of 38 healthy adults, after a 10-hour fast, the same doses were given 10 or 30 minutes prior to the consumption of a 950-calorie standardized high-fat breakfast.
Again, over 48 hours, mean serum T4 levels were comparable between the two groups. The geometric least squares mean ratios for both AUC and Cmax for baseline-adjusted LT4 were 88.7% and 85.1%, respectively. Again, the corresponding 90% confidence intervals fell within the FDA’s noninterference definition, again demonstrating lack of a food effect on bioavailability, Dr. Washington noted.
Four adverse events were reported in three participants, with three deemed to be possibly related to the medication. All were isolated lab abnormalities without clinical symptoms and deemed to be mild. Three were normal on repeat testing.
There were no deaths or serious adverse events or study discontinuations for adverse events and no significant findings for vital signs or on ECG.
Similar findings for Tirosint-SOL but longer-term studies needed
The recently published Tirosint-SOL study included 36 healthy volunteers randomized to single 600-µg doses of the LT4 oral solution after a 10-hour fast, either 15 or 30 minutes before eating a standardized high-fat, high-calorie meal. Mean serum total thyroxine concentration profiles were similar for both the 15- and 30-minute waits, with similar AUCs.
Geometric mean ratios for AUCs at 48 and 72 hours were 90% and 92%, respectively, and the 90% confidence intervals fell within the 80%-125% FDA boundaries, suggesting similar exposures whether taken 15 or 30 minutes before a meal.
Senior author Francesco S. Celi, MD, chair of the division of endocrinology, diabetes, and metabolism at Virginia Commonwealth University, Richmond, told this news organization: “There is an interest in providing more opportunities for patients and improving adherence to the medication. ... Whatever makes life a bit easier for patients and results in a more predictable response to treatment means down the road there will be fewer visits to the doctor to make adjustments.”
However, he said that in addition to the cost and reimbursement issue, all of these studies have been short term and not conducted in real-life settings.
“Another question is: What happens if the patient goes on low-dose LT4? The studies were conducted on much higher pharmacologic doses. But at least from a safety standpoint, there’s no specific concern.”
Dr. Washington is an employee of Vertice Pharma. Dr. Celi has received unrestricted research grants and worked as a consultant for IBSA. Dr. Gigliotti has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
ATLANTA -- Liquid formulations of levothyroxine offer the possibility of allowing patients with hypothyroidism to take their medication with meals or coffee and skip the currently recommended 30- to 60-minute waiting period before doing either, new data suggest.
Because food, coffee, and certain medications can interfere with intestinal absorption of levothyroxine (also known as LT4), current guidelines recommend that the drug be taken in a fasting state, typically 30-60 minutes before breakfast. However, compliance may be difficult for some patients.
Now, a potential solution may come from new evidence that liquid levothyroxine formulations that bypass the gastric dissolution phase of absorption may mitigate the interference with food and coffee.
Findings from two bioavailability studies showing no difference in comparisons of Thyquidity (levothyroxine sodium oral solution, Vertice Pharma) with or without waiting periods before consuming coffee or a high-fat meal were presented at the annual meeting of the Endocrine Society (ENDO 2022), by Vertice Pharma Medical Director Kris Washington, PharmD.
And just last month, similar data were published in Thyroid for another levothyroxine oral solution, Tirosint-SOL (IBSA). No difference in pharmacokinetic properties were found with this product with a shorter versus a longer waiting period before consuming a high-fat meal.
Liquid thyroxine may be less affected by food/drink but is expensive
Both products have been approved by the U.S. Food and Drug Administration, but current labeling for both still calls for a 30- to 60-minute waiting period between taking the medication and eating or drinking. Thyquidity is an oral solution of 100 µg/mL levothyroxine sodium that has been shown to be bioequivalent to one of the most popular branded levothyroxine tablets, Synthroid (AbbVie), under fasting conditions. Tirosint-SOL is also an oral solution that comes in 15 different dosage ampules.
“It is important to note that while these findings are exciting and encouraging, we do want you to continue to follow the current FDA-approved label for Thyquidity, recommending that it be taken on an empty stomach 30-60 minutes prior to breakfast and that patients continue to follow all other label instructions,” Dr. Washington said during a press briefing at ENDO 2022.
When asked whether the new data would be submitted to the FDA for a possible amendment to this message, she replied: “We’re still discussing that. We’re exploring all options. ... This is fairly new data. ... It makes sense and certainly solves a lot of the challenges for people who can’t swallow or don’t choose to swallow, or the challenges of splitting or crushing with tablets.”
Asked to comment, Benjamin J. Gigliotti, MD, a clinical thyroidologist at the University of Rochester, New York, told this news organization: “Liquid levothyroxine has the potential to be a clinically useful formulation,” noting that these recent data corroborate prior findings from Europe and elsewhere that liquid levothyroxine is absorbed more rapidly and thus may be less impacted by food or beverages.
However, Dr. Gigliotti also pointed out, “I don’t think malabsorption is a major contributor to suboptimal treatment because if [patients] malabsorb the hormone, we typically just increase their dose a little bit or ask them to take it separately, and that works just fine for most people.”
And the higher cost of the liquid products is a major issue, he noted.
A quick search on GoodRx shows that the lowest price of Tirosint-SOL is $115.52 for a 1 month supply and Thyquidity is $181.04/month. “In the few patients where I tried to obtain Tirosint-SOL, it was not covered by insurance, even with a prior authorization,” Dr. Gigliotti commented.
In contrast, generic levothyroxine tablets are about $4/month, while a common brand name of levothyroxine tablets are $47.81/month.
“Until these liquid formulations are more widely covered by insurance for a reasonable copay, or come down in price compared to generic levothyroxine tablets, most of my patients have voiced that they’d rather deal with the inconveniences of a tablet compared to higher medication cost, especially with rising economic insecurity imposed by the COVID-19 pandemic and recent world events,” Dr. Gigliotti said.
Bioequivalence with shorter versus longer waits before coffee/breakfast
The Thyquidity coffee study was a single-center open-label, randomized, crossover study of 40 healthy adults randomized after a 10-hour overnight fast to 600 µg Thyquidity with water under fasting conditions or to the same dose given 5 minutes prior to drinking an 8-ounce cup of American coffee without milk or sweeteners. After a 40-day washout period, the same participants received the other treatment.
Mean serum thyroxine (T4) concentrations over 48 hours were nearly identical, demonstrating comparable bioavailability. Pharmacokinetics parameters, including area under the curve (AUC) and Cmax, were also comparable for both groups. The geometric least square mean ratios for baseline-adjusted LT4 were 96.0% for Cmax and 94% for AUC. And the corresponding 90% confidence intervals fell within the 80%-125% FDA acceptance range for absence of a food effect on bioavailability, said Dr. Washington when presenting the findings.
There was one adverse event, a decrease in blood glucose level, which was deemed to be mild and unrelated to study treatment. No deaths, serious adverse events, or discontinuations due to adverse events were reported. There were no significant changes in vital signs or on ECG.
In the second Thyquidity study of 38 healthy adults, after a 10-hour fast, the same doses were given 10 or 30 minutes prior to the consumption of a 950-calorie standardized high-fat breakfast.
Again, over 48 hours, mean serum T4 levels were comparable between the two groups. The geometric least squares mean ratios for both AUC and Cmax for baseline-adjusted LT4 were 88.7% and 85.1%, respectively. Again, the corresponding 90% confidence intervals fell within the FDA’s noninterference definition, again demonstrating lack of a food effect on bioavailability, Dr. Washington noted.
Four adverse events were reported in three participants, with three deemed to be possibly related to the medication. All were isolated lab abnormalities without clinical symptoms and deemed to be mild. Three were normal on repeat testing.
There were no deaths or serious adverse events or study discontinuations for adverse events and no significant findings for vital signs or on ECG.
Similar findings for Tirosint-SOL but longer-term studies needed
The recently published Tirosint-SOL study included 36 healthy volunteers randomized to single 600-µg doses of the LT4 oral solution after a 10-hour fast, either 15 or 30 minutes before eating a standardized high-fat, high-calorie meal. Mean serum total thyroxine concentration profiles were similar for both the 15- and 30-minute waits, with similar AUCs.
Geometric mean ratios for AUCs at 48 and 72 hours were 90% and 92%, respectively, and the 90% confidence intervals fell within the 80%-125% FDA boundaries, suggesting similar exposures whether taken 15 or 30 minutes before a meal.
Senior author Francesco S. Celi, MD, chair of the division of endocrinology, diabetes, and metabolism at Virginia Commonwealth University, Richmond, told this news organization: “There is an interest in providing more opportunities for patients and improving adherence to the medication. ... Whatever makes life a bit easier for patients and results in a more predictable response to treatment means down the road there will be fewer visits to the doctor to make adjustments.”
However, he said that in addition to the cost and reimbursement issue, all of these studies have been short term and not conducted in real-life settings.
“Another question is: What happens if the patient goes on low-dose LT4? The studies were conducted on much higher pharmacologic doses. But at least from a safety standpoint, there’s no specific concern.”
Dr. Washington is an employee of Vertice Pharma. Dr. Celi has received unrestricted research grants and worked as a consultant for IBSA. Dr. Gigliotti has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
ATLANTA -- Liquid formulations of levothyroxine offer the possibility of allowing patients with hypothyroidism to take their medication with meals or coffee and skip the currently recommended 30- to 60-minute waiting period before doing either, new data suggest.
Because food, coffee, and certain medications can interfere with intestinal absorption of levothyroxine (also known as LT4), current guidelines recommend that the drug be taken in a fasting state, typically 30-60 minutes before breakfast. However, compliance may be difficult for some patients.
Now, a potential solution may come from new evidence that liquid levothyroxine formulations that bypass the gastric dissolution phase of absorption may mitigate the interference with food and coffee.
Findings from two bioavailability studies showing no difference in comparisons of Thyquidity (levothyroxine sodium oral solution, Vertice Pharma) with or without waiting periods before consuming coffee or a high-fat meal were presented at the annual meeting of the Endocrine Society (ENDO 2022), by Vertice Pharma Medical Director Kris Washington, PharmD.
And just last month, similar data were published in Thyroid for another levothyroxine oral solution, Tirosint-SOL (IBSA). No difference in pharmacokinetic properties were found with this product with a shorter versus a longer waiting period before consuming a high-fat meal.
Liquid thyroxine may be less affected by food/drink but is expensive
Both products have been approved by the U.S. Food and Drug Administration, but current labeling for both still calls for a 30- to 60-minute waiting period between taking the medication and eating or drinking. Thyquidity is an oral solution of 100 µg/mL levothyroxine sodium that has been shown to be bioequivalent to one of the most popular branded levothyroxine tablets, Synthroid (AbbVie), under fasting conditions. Tirosint-SOL is also an oral solution that comes in 15 different dosage ampules.
“It is important to note that while these findings are exciting and encouraging, we do want you to continue to follow the current FDA-approved label for Thyquidity, recommending that it be taken on an empty stomach 30-60 minutes prior to breakfast and that patients continue to follow all other label instructions,” Dr. Washington said during a press briefing at ENDO 2022.
When asked whether the new data would be submitted to the FDA for a possible amendment to this message, she replied: “We’re still discussing that. We’re exploring all options. ... This is fairly new data. ... It makes sense and certainly solves a lot of the challenges for people who can’t swallow or don’t choose to swallow, or the challenges of splitting or crushing with tablets.”
Asked to comment, Benjamin J. Gigliotti, MD, a clinical thyroidologist at the University of Rochester, New York, told this news organization: “Liquid levothyroxine has the potential to be a clinically useful formulation,” noting that these recent data corroborate prior findings from Europe and elsewhere that liquid levothyroxine is absorbed more rapidly and thus may be less impacted by food or beverages.
However, Dr. Gigliotti also pointed out, “I don’t think malabsorption is a major contributor to suboptimal treatment because if [patients] malabsorb the hormone, we typically just increase their dose a little bit or ask them to take it separately, and that works just fine for most people.”
And the higher cost of the liquid products is a major issue, he noted.
A quick search on GoodRx shows that the lowest price of Tirosint-SOL is $115.52 for a 1 month supply and Thyquidity is $181.04/month. “In the few patients where I tried to obtain Tirosint-SOL, it was not covered by insurance, even with a prior authorization,” Dr. Gigliotti commented.
In contrast, generic levothyroxine tablets are about $4/month, while a common brand name of levothyroxine tablets are $47.81/month.
“Until these liquid formulations are more widely covered by insurance for a reasonable copay, or come down in price compared to generic levothyroxine tablets, most of my patients have voiced that they’d rather deal with the inconveniences of a tablet compared to higher medication cost, especially with rising economic insecurity imposed by the COVID-19 pandemic and recent world events,” Dr. Gigliotti said.
Bioequivalence with shorter versus longer waits before coffee/breakfast
The Thyquidity coffee study was a single-center open-label, randomized, crossover study of 40 healthy adults randomized after a 10-hour overnight fast to 600 µg Thyquidity with water under fasting conditions or to the same dose given 5 minutes prior to drinking an 8-ounce cup of American coffee without milk or sweeteners. After a 40-day washout period, the same participants received the other treatment.
Mean serum thyroxine (T4) concentrations over 48 hours were nearly identical, demonstrating comparable bioavailability. Pharmacokinetics parameters, including area under the curve (AUC) and Cmax, were also comparable for both groups. The geometric least square mean ratios for baseline-adjusted LT4 were 96.0% for Cmax and 94% for AUC. And the corresponding 90% confidence intervals fell within the 80%-125% FDA acceptance range for absence of a food effect on bioavailability, said Dr. Washington when presenting the findings.
There was one adverse event, a decrease in blood glucose level, which was deemed to be mild and unrelated to study treatment. No deaths, serious adverse events, or discontinuations due to adverse events were reported. There were no significant changes in vital signs or on ECG.
In the second Thyquidity study of 38 healthy adults, after a 10-hour fast, the same doses were given 10 or 30 minutes prior to the consumption of a 950-calorie standardized high-fat breakfast.
Again, over 48 hours, mean serum T4 levels were comparable between the two groups. The geometric least squares mean ratios for both AUC and Cmax for baseline-adjusted LT4 were 88.7% and 85.1%, respectively. Again, the corresponding 90% confidence intervals fell within the FDA’s noninterference definition, again demonstrating lack of a food effect on bioavailability, Dr. Washington noted.
Four adverse events were reported in three participants, with three deemed to be possibly related to the medication. All were isolated lab abnormalities without clinical symptoms and deemed to be mild. Three were normal on repeat testing.
There were no deaths or serious adverse events or study discontinuations for adverse events and no significant findings for vital signs or on ECG.
Similar findings for Tirosint-SOL but longer-term studies needed
The recently published Tirosint-SOL study included 36 healthy volunteers randomized to single 600-µg doses of the LT4 oral solution after a 10-hour fast, either 15 or 30 minutes before eating a standardized high-fat, high-calorie meal. Mean serum total thyroxine concentration profiles were similar for both the 15- and 30-minute waits, with similar AUCs.
Geometric mean ratios for AUCs at 48 and 72 hours were 90% and 92%, respectively, and the 90% confidence intervals fell within the 80%-125% FDA boundaries, suggesting similar exposures whether taken 15 or 30 minutes before a meal.
Senior author Francesco S. Celi, MD, chair of the division of endocrinology, diabetes, and metabolism at Virginia Commonwealth University, Richmond, told this news organization: “There is an interest in providing more opportunities for patients and improving adherence to the medication. ... Whatever makes life a bit easier for patients and results in a more predictable response to treatment means down the road there will be fewer visits to the doctor to make adjustments.”
However, he said that in addition to the cost and reimbursement issue, all of these studies have been short term and not conducted in real-life settings.
“Another question is: What happens if the patient goes on low-dose LT4? The studies were conducted on much higher pharmacologic doses. But at least from a safety standpoint, there’s no specific concern.”
Dr. Washington is an employee of Vertice Pharma. Dr. Celi has received unrestricted research grants and worked as a consultant for IBSA. Dr. Gigliotti has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
AT ENDO 2022
‘DIY’ artificial pancreas systems found to be safe, effective: CREATE trial
NEW ORLEANS – Open-source automated insulin delivery systems appear to be both effective and safe in adults and children, new research finds.
Automated insulin delivery (AID) system, also known as closed-loop systems or an artificial pancreas, link an insulin pump and a continuous glucose monitor (CGM) with an algorithm that automatically adjusts insulin delivery to optimize glycemic control.
Prior to the availability of commercial AID systems, Dana Lewis, a patient with type 1 diabetes, and her partner codeveloped an algorithm that could link older versions of an insulin pump and CGM.
In 2015, they made the code and all related materials open-source, so that anyone who wanted to create their own AID system could do so. Today thousands of people worldwide with type 1 diabetes are using the systems, which are sometimes called “do-it-yourself (DIY)” AID systems although the approach has been community based.
AID systems are not approved by any regulatory body, and despite several nonrandomized studies demonstrating their effectiveness and safety, there is still concern among some health professionals about their safety. In 2019, the U.S. Food and Drug Administration warned against the use of any nonapproved devices or algorithms. (Now, though, at least one open-source AID system algorithm is under FDA review.)
Aimed at addressing those concerns, CREATE (Community Derived Automated Insulin Delivery) is the first randomized controlled clinical trial to compare an open-source AID system to insulin pump therapy and CGM (without any communication between the two) in patients with type 1 diabetes, most of whom were naive to AID systems.
Doctors uncomfortable with open source; study provides reassurance
The findings were presented at the American Diabetes Association scientific sessions by Martin I. de Bock, PhD, a pediatric endocrinologist and senior lecturer at the University of Otago, Christchurch, New Zealand.
The study compared the most commonly used open-source AID system (using the OpenAPS algorithm from a version of AndroidAPS implemented in a smartphone with the DANA-i insulin pump and Dexcom G6 CGM) to any insulin pump plus CGM as a comparator group.
The open-source AID system led to a significant reduction in hemoglobin A1c with no major safety issues.
“The acceptance [among clinicians] of open-source systems is diverse and complicated, [with varying] personal comfort levels of seeing someone using an AID system that has no regulatory approval,” Dr. de Bock told this news organization.
“This is one of the reasons that it was so important to conduct the CREATE trial for the many thousands of open-source AID users. Given that the trial demonstrated safety and efficacy using the most robust scientific methodology available – a long-term randomized controlled trial – it may go some way to provide assurance for providers when they are seeing people using an open-source automated system,” he said.
Asked for comment, session moderator Diana Isaacs, PharmD, CDCES, an endocrine clinical pharmacist at the Cleveland Clinic, told this news organization: “There has been concern that these systems aren’t safe, so showing the safety is important. I think people deserve choice. As long as they’re safe, patients should be able to use what they want to use, and we should support them.”
Dr. Isaacs pointed out that an advantage of open-source systems over current commercial AIDs for patients is the ability to customize glucose targets, but in CREATE, those targets were established in the protocol by the investigators.
“I think it’s nice having the data, although in the trial they had specific requirements. They had a target range and active insulin time that they were recommending. So it’s a little different than true DIY where you don’t really have those guidelines you have to follow. It is exciting, it’s very interesting, but I wouldn’t say it’s a true mirror of the real world.”
Open-source systems improved time-in-range, no safety issues
For the CREATE study, 100 participants were enrolled, including 50 children aged 7-15 years and 50 adults aged 16-70 years. All participants had been using insulin pumps for at least 6 months. Most of the children and about two-thirds of the adults were also using CGMs, but just 6% of the children and 18% of the adults had prior experience with AID systems.
Baseline A1c in children was 7.5% and in adults was 7.7%.
After a 4-week run-in, all patients were randomized to the open-source AID or insulin pump plus CGM for 6 months.
The final group analyzed consisted of 42 patients in the open-source AID group and 53 patients in the comparator group.
The primary outcome, the adjusted mean difference in percent time-in-range (glucose of 70-180 mg/dL) during the final 2 weeks of the 6-month trial, showed a significant difference of 14% (P < .001) with open-source AID compared with pump plus CGM only.
Time-in-range in the open-source AID group rose from 61.2% to 71.2%, while it actually dropped slightly in the comparator group, from 57.7% to 54.5%.
The proportion of patients achieving time-in-range greater than 70% with open-source AID was 60% versus just 15% with pump plus CGM.
Glycemic improvements with open-source AID were significant for adults and children and were greater for those with higher baseline A1c levels. The effect was immediate and sustained throughout the study period, “which is super-pleasing, because there was a worry that the technical burden of open source might be [leading to] dropout, but we didn’t see that. It was sustained right through to the end of the trial,” Dr. de Bock commented.
Hypoglycemic rates didn’t differ between groups, and there were no episodes of severe hypoglycemia or diabetic ketoacidosis.
No more waiting: What is the future of open-source AID?
When the open-source APS was first developed, users coined the motto: “We are not waiting.” But now that the “wait” is over and several commercial AIDs have been approved by regulatory bodies, with others still in the pipeline, will people still use open-source systems?
There are no current data on people moving from DIY to commercial systems. However, Dr. de Bock said, “For most who undertook an open-source option, the precision of the settings that they can use and enjoy would mean that most would likely stick to their open source.”
Dr. Isaacs agrees: “I actually don’t think it’s going to go away in the near future, because the FDA has very specific criteria for where these [formally approved] devices can be in terms of their target ranges and requirements versus with open source you can really customize. So I still think there’s going to be a subset of people who want that customization, who want the lower targets.”
Dana Lewis, the originator of the DIY system and a CREATE coauthor, told this news organization: “I don’t believe there has been a fall-off, and in fact, I think open-source AID has continued to have ongoing uptake as awareness increases about options and as more pumps and CGMs become interoperable with various open-source AID choices.”
“I think uptake increasing is also influenced by the fact that in places like Europe, Asia, and Australia there are in-warranty on-the-market pumps that are compatible and interoperable with open-source AID. I think awareness of AID overall increases uptake of commercial and open source alike,” she said.
“Clinicians, as emphasized in recent position statements, must maintain support of the person with diabetes, irrespective of the mode of treatment they are on. ... Health care providers should be encouraged to learn from the experiences of the people who have stuck with open-source AID or switched, so that they can inform themselves of the relative strengths and benefits of each system,” Dr. de Bock advised.
Ms. Lewis noted: “We are seeing increasing awareness and comfort in endocrinologists from the community perspective, and we do hope that this study helps increase conversation and awareness of the safety and efficacy of open-source AID systems as an option for people with diabetes.”
In fact, the team published an article specifically about clinicians’ experience in CREATE. “The learning curve is similar across AID technology,” she observed.
Findings of a 6-month continuation phase of CREATE, in which all participants used the open-source AID, are scheduled to be presented in September at the European Association for the Study of Diabetes annual meeting.
The study was funded by the Health Research Council of New Zealand, with hardware support from SOOIL Developments, South Korea; Dexcom; and Vodafone New Zealand. Dr. de Bock has reported receiving honoraria and/or research funding from Novo Nordisk, Sanofi, Pfizer, Medtronic, Lilly, Ypsomed, and Dexcom. Dr. Isaacs has reported serving as a consultant for LifeScan, Lilly, and Insulet, and as a speaker for Dexcom, Medtronic, Abbott, and Novo Nordisk. Ms. Lewis has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
NEW ORLEANS – Open-source automated insulin delivery systems appear to be both effective and safe in adults and children, new research finds.
Automated insulin delivery (AID) system, also known as closed-loop systems or an artificial pancreas, link an insulin pump and a continuous glucose monitor (CGM) with an algorithm that automatically adjusts insulin delivery to optimize glycemic control.
Prior to the availability of commercial AID systems, Dana Lewis, a patient with type 1 diabetes, and her partner codeveloped an algorithm that could link older versions of an insulin pump and CGM.
In 2015, they made the code and all related materials open-source, so that anyone who wanted to create their own AID system could do so. Today thousands of people worldwide with type 1 diabetes are using the systems, which are sometimes called “do-it-yourself (DIY)” AID systems although the approach has been community based.
AID systems are not approved by any regulatory body, and despite several nonrandomized studies demonstrating their effectiveness and safety, there is still concern among some health professionals about their safety. In 2019, the U.S. Food and Drug Administration warned against the use of any nonapproved devices or algorithms. (Now, though, at least one open-source AID system algorithm is under FDA review.)
Aimed at addressing those concerns, CREATE (Community Derived Automated Insulin Delivery) is the first randomized controlled clinical trial to compare an open-source AID system to insulin pump therapy and CGM (without any communication between the two) in patients with type 1 diabetes, most of whom were naive to AID systems.
Doctors uncomfortable with open source; study provides reassurance
The findings were presented at the American Diabetes Association scientific sessions by Martin I. de Bock, PhD, a pediatric endocrinologist and senior lecturer at the University of Otago, Christchurch, New Zealand.
The study compared the most commonly used open-source AID system (using the OpenAPS algorithm from a version of AndroidAPS implemented in a smartphone with the DANA-i insulin pump and Dexcom G6 CGM) to any insulin pump plus CGM as a comparator group.
The open-source AID system led to a significant reduction in hemoglobin A1c with no major safety issues.
“The acceptance [among clinicians] of open-source systems is diverse and complicated, [with varying] personal comfort levels of seeing someone using an AID system that has no regulatory approval,” Dr. de Bock told this news organization.
“This is one of the reasons that it was so important to conduct the CREATE trial for the many thousands of open-source AID users. Given that the trial demonstrated safety and efficacy using the most robust scientific methodology available – a long-term randomized controlled trial – it may go some way to provide assurance for providers when they are seeing people using an open-source automated system,” he said.
Asked for comment, session moderator Diana Isaacs, PharmD, CDCES, an endocrine clinical pharmacist at the Cleveland Clinic, told this news organization: “There has been concern that these systems aren’t safe, so showing the safety is important. I think people deserve choice. As long as they’re safe, patients should be able to use what they want to use, and we should support them.”
Dr. Isaacs pointed out that an advantage of open-source systems over current commercial AIDs for patients is the ability to customize glucose targets, but in CREATE, those targets were established in the protocol by the investigators.
“I think it’s nice having the data, although in the trial they had specific requirements. They had a target range and active insulin time that they were recommending. So it’s a little different than true DIY where you don’t really have those guidelines you have to follow. It is exciting, it’s very interesting, but I wouldn’t say it’s a true mirror of the real world.”
Open-source systems improved time-in-range, no safety issues
For the CREATE study, 100 participants were enrolled, including 50 children aged 7-15 years and 50 adults aged 16-70 years. All participants had been using insulin pumps for at least 6 months. Most of the children and about two-thirds of the adults were also using CGMs, but just 6% of the children and 18% of the adults had prior experience with AID systems.
Baseline A1c in children was 7.5% and in adults was 7.7%.
After a 4-week run-in, all patients were randomized to the open-source AID or insulin pump plus CGM for 6 months.
The final group analyzed consisted of 42 patients in the open-source AID group and 53 patients in the comparator group.
The primary outcome, the adjusted mean difference in percent time-in-range (glucose of 70-180 mg/dL) during the final 2 weeks of the 6-month trial, showed a significant difference of 14% (P < .001) with open-source AID compared with pump plus CGM only.
Time-in-range in the open-source AID group rose from 61.2% to 71.2%, while it actually dropped slightly in the comparator group, from 57.7% to 54.5%.
The proportion of patients achieving time-in-range greater than 70% with open-source AID was 60% versus just 15% with pump plus CGM.
Glycemic improvements with open-source AID were significant for adults and children and were greater for those with higher baseline A1c levels. The effect was immediate and sustained throughout the study period, “which is super-pleasing, because there was a worry that the technical burden of open source might be [leading to] dropout, but we didn’t see that. It was sustained right through to the end of the trial,” Dr. de Bock commented.
Hypoglycemic rates didn’t differ between groups, and there were no episodes of severe hypoglycemia or diabetic ketoacidosis.
No more waiting: What is the future of open-source AID?
When the open-source APS was first developed, users coined the motto: “We are not waiting.” But now that the “wait” is over and several commercial AIDs have been approved by regulatory bodies, with others still in the pipeline, will people still use open-source systems?
There are no current data on people moving from DIY to commercial systems. However, Dr. de Bock said, “For most who undertook an open-source option, the precision of the settings that they can use and enjoy would mean that most would likely stick to their open source.”
Dr. Isaacs agrees: “I actually don’t think it’s going to go away in the near future, because the FDA has very specific criteria for where these [formally approved] devices can be in terms of their target ranges and requirements versus with open source you can really customize. So I still think there’s going to be a subset of people who want that customization, who want the lower targets.”
Dana Lewis, the originator of the DIY system and a CREATE coauthor, told this news organization: “I don’t believe there has been a fall-off, and in fact, I think open-source AID has continued to have ongoing uptake as awareness increases about options and as more pumps and CGMs become interoperable with various open-source AID choices.”
“I think uptake increasing is also influenced by the fact that in places like Europe, Asia, and Australia there are in-warranty on-the-market pumps that are compatible and interoperable with open-source AID. I think awareness of AID overall increases uptake of commercial and open source alike,” she said.
“Clinicians, as emphasized in recent position statements, must maintain support of the person with diabetes, irrespective of the mode of treatment they are on. ... Health care providers should be encouraged to learn from the experiences of the people who have stuck with open-source AID or switched, so that they can inform themselves of the relative strengths and benefits of each system,” Dr. de Bock advised.
Ms. Lewis noted: “We are seeing increasing awareness and comfort in endocrinologists from the community perspective, and we do hope that this study helps increase conversation and awareness of the safety and efficacy of open-source AID systems as an option for people with diabetes.”
In fact, the team published an article specifically about clinicians’ experience in CREATE. “The learning curve is similar across AID technology,” she observed.
Findings of a 6-month continuation phase of CREATE, in which all participants used the open-source AID, are scheduled to be presented in September at the European Association for the Study of Diabetes annual meeting.
The study was funded by the Health Research Council of New Zealand, with hardware support from SOOIL Developments, South Korea; Dexcom; and Vodafone New Zealand. Dr. de Bock has reported receiving honoraria and/or research funding from Novo Nordisk, Sanofi, Pfizer, Medtronic, Lilly, Ypsomed, and Dexcom. Dr. Isaacs has reported serving as a consultant for LifeScan, Lilly, and Insulet, and as a speaker for Dexcom, Medtronic, Abbott, and Novo Nordisk. Ms. Lewis has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
NEW ORLEANS – Open-source automated insulin delivery systems appear to be both effective and safe in adults and children, new research finds.
Automated insulin delivery (AID) system, also known as closed-loop systems or an artificial pancreas, link an insulin pump and a continuous glucose monitor (CGM) with an algorithm that automatically adjusts insulin delivery to optimize glycemic control.
Prior to the availability of commercial AID systems, Dana Lewis, a patient with type 1 diabetes, and her partner codeveloped an algorithm that could link older versions of an insulin pump and CGM.
In 2015, they made the code and all related materials open-source, so that anyone who wanted to create their own AID system could do so. Today thousands of people worldwide with type 1 diabetes are using the systems, which are sometimes called “do-it-yourself (DIY)” AID systems although the approach has been community based.
AID systems are not approved by any regulatory body, and despite several nonrandomized studies demonstrating their effectiveness and safety, there is still concern among some health professionals about their safety. In 2019, the U.S. Food and Drug Administration warned against the use of any nonapproved devices or algorithms. (Now, though, at least one open-source AID system algorithm is under FDA review.)
Aimed at addressing those concerns, CREATE (Community Derived Automated Insulin Delivery) is the first randomized controlled clinical trial to compare an open-source AID system to insulin pump therapy and CGM (without any communication between the two) in patients with type 1 diabetes, most of whom were naive to AID systems.
Doctors uncomfortable with open source; study provides reassurance
The findings were presented at the American Diabetes Association scientific sessions by Martin I. de Bock, PhD, a pediatric endocrinologist and senior lecturer at the University of Otago, Christchurch, New Zealand.
The study compared the most commonly used open-source AID system (using the OpenAPS algorithm from a version of AndroidAPS implemented in a smartphone with the DANA-i insulin pump and Dexcom G6 CGM) to any insulin pump plus CGM as a comparator group.
The open-source AID system led to a significant reduction in hemoglobin A1c with no major safety issues.
“The acceptance [among clinicians] of open-source systems is diverse and complicated, [with varying] personal comfort levels of seeing someone using an AID system that has no regulatory approval,” Dr. de Bock told this news organization.
“This is one of the reasons that it was so important to conduct the CREATE trial for the many thousands of open-source AID users. Given that the trial demonstrated safety and efficacy using the most robust scientific methodology available – a long-term randomized controlled trial – it may go some way to provide assurance for providers when they are seeing people using an open-source automated system,” he said.
Asked for comment, session moderator Diana Isaacs, PharmD, CDCES, an endocrine clinical pharmacist at the Cleveland Clinic, told this news organization: “There has been concern that these systems aren’t safe, so showing the safety is important. I think people deserve choice. As long as they’re safe, patients should be able to use what they want to use, and we should support them.”
Dr. Isaacs pointed out that an advantage of open-source systems over current commercial AIDs for patients is the ability to customize glucose targets, but in CREATE, those targets were established in the protocol by the investigators.
“I think it’s nice having the data, although in the trial they had specific requirements. They had a target range and active insulin time that they were recommending. So it’s a little different than true DIY where you don’t really have those guidelines you have to follow. It is exciting, it’s very interesting, but I wouldn’t say it’s a true mirror of the real world.”
Open-source systems improved time-in-range, no safety issues
For the CREATE study, 100 participants were enrolled, including 50 children aged 7-15 years and 50 adults aged 16-70 years. All participants had been using insulin pumps for at least 6 months. Most of the children and about two-thirds of the adults were also using CGMs, but just 6% of the children and 18% of the adults had prior experience with AID systems.
Baseline A1c in children was 7.5% and in adults was 7.7%.
After a 4-week run-in, all patients were randomized to the open-source AID or insulin pump plus CGM for 6 months.
The final group analyzed consisted of 42 patients in the open-source AID group and 53 patients in the comparator group.
The primary outcome, the adjusted mean difference in percent time-in-range (glucose of 70-180 mg/dL) during the final 2 weeks of the 6-month trial, showed a significant difference of 14% (P < .001) with open-source AID compared with pump plus CGM only.
Time-in-range in the open-source AID group rose from 61.2% to 71.2%, while it actually dropped slightly in the comparator group, from 57.7% to 54.5%.
The proportion of patients achieving time-in-range greater than 70% with open-source AID was 60% versus just 15% with pump plus CGM.
Glycemic improvements with open-source AID were significant for adults and children and were greater for those with higher baseline A1c levels. The effect was immediate and sustained throughout the study period, “which is super-pleasing, because there was a worry that the technical burden of open source might be [leading to] dropout, but we didn’t see that. It was sustained right through to the end of the trial,” Dr. de Bock commented.
Hypoglycemic rates didn’t differ between groups, and there were no episodes of severe hypoglycemia or diabetic ketoacidosis.
No more waiting: What is the future of open-source AID?
When the open-source APS was first developed, users coined the motto: “We are not waiting.” But now that the “wait” is over and several commercial AIDs have been approved by regulatory bodies, with others still in the pipeline, will people still use open-source systems?
There are no current data on people moving from DIY to commercial systems. However, Dr. de Bock said, “For most who undertook an open-source option, the precision of the settings that they can use and enjoy would mean that most would likely stick to their open source.”
Dr. Isaacs agrees: “I actually don’t think it’s going to go away in the near future, because the FDA has very specific criteria for where these [formally approved] devices can be in terms of their target ranges and requirements versus with open source you can really customize. So I still think there’s going to be a subset of people who want that customization, who want the lower targets.”
Dana Lewis, the originator of the DIY system and a CREATE coauthor, told this news organization: “I don’t believe there has been a fall-off, and in fact, I think open-source AID has continued to have ongoing uptake as awareness increases about options and as more pumps and CGMs become interoperable with various open-source AID choices.”
“I think uptake increasing is also influenced by the fact that in places like Europe, Asia, and Australia there are in-warranty on-the-market pumps that are compatible and interoperable with open-source AID. I think awareness of AID overall increases uptake of commercial and open source alike,” she said.
“Clinicians, as emphasized in recent position statements, must maintain support of the person with diabetes, irrespective of the mode of treatment they are on. ... Health care providers should be encouraged to learn from the experiences of the people who have stuck with open-source AID or switched, so that they can inform themselves of the relative strengths and benefits of each system,” Dr. de Bock advised.
Ms. Lewis noted: “We are seeing increasing awareness and comfort in endocrinologists from the community perspective, and we do hope that this study helps increase conversation and awareness of the safety and efficacy of open-source AID systems as an option for people with diabetes.”
In fact, the team published an article specifically about clinicians’ experience in CREATE. “The learning curve is similar across AID technology,” she observed.
Findings of a 6-month continuation phase of CREATE, in which all participants used the open-source AID, are scheduled to be presented in September at the European Association for the Study of Diabetes annual meeting.
The study was funded by the Health Research Council of New Zealand, with hardware support from SOOIL Developments, South Korea; Dexcom; and Vodafone New Zealand. Dr. de Bock has reported receiving honoraria and/or research funding from Novo Nordisk, Sanofi, Pfizer, Medtronic, Lilly, Ypsomed, and Dexcom. Dr. Isaacs has reported serving as a consultant for LifeScan, Lilly, and Insulet, and as a speaker for Dexcom, Medtronic, Abbott, and Novo Nordisk. Ms. Lewis has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
AT ADA 2022
Avexitide promising for hypoglycemia after weight-loss surgery
Avexitide (Eiger Biopharmaceuticals), a first-in-class glucagonlike peptide (GLP)–1 receptor blocker, significantly reduced hypoglycemia in patients with refractory postbariatric hypoglycemia, new research finds.
Postbariatric hypoglycemia is a complication of bariatric surgery that is estimated to occur in about 29%-34% of people who undergo Roux-en-Y gastric bypass and in 11%-23% of those who undergo vertical sleeve gastrectomy. It typically manifests about 1-3 hours after meals and can lead to severe neuroglycopenic symptoms including blurred vision, confusion, drowsiness, and incoordination.
In addition, more than one-third (37%) with the condition have hypoglycemic unawareness. This can lead to seizures in about 59%, loss of consciousness and hospitalization in 50%, motor vehicle accidents, and even death. More than 90% with the condition consider themselves disabled, and 41% report being unable to work.
There are no currently approved medical treatments for postbariatric hypoglycemia. The standard of care is medical nutrition therapy involving a low-carbohydrate diet with carb restriction and small, frequent mixed meals. If this doesn’t work, off-label stepped pharmacotherapy has been tried, including acarbose (Precose), octreotide (Sandostatin), and diazoxide (Proglycem).
But “these are limited by efficacy and tolerability,” said Marilyn Tan, MD, who presented the findings from the phase 2 trial of avexitide at the annual meeting of the Endocrine Society.
In very severe cases, gastrostomy tubes or bypass reversal are options but those lead to weight regain and incomplete efficacy. “Safe, effective, and targeted therapies are needed urgently for postbariatric hypoglycemia,” said Dr. Tan, of the department of endocrinology at Stanford (Calif.) University.
The pathophysiology isn’t fully understood, but there appears to be an exaggerated GLP-1 response that leads to abnormal insulin secretion and symptomatic hyperinsulinemic hypoglycemia. Avexitide (formerly exendin 9-39), blocks the GLP-1 receptor and mitigates the excessive GLP-1 response, she explained.
Asked to comment, session moderator Michelle Van Name, MD, told this news organization, “This is a problem and it’s important for us to understand more about it and to identify different treatment options so these patients can continue to live their full, healthy lives post bariatric surgery.”
And, avexitide also holds potential for treating congenital hyperinsulinism, “which is a very challenging disease to treat in babies,” noted Dr. Van Name, a pediatric endocrinologist at Yale University, New Haven, Conn.
Drug reduced all levels of hypoglycemia, across surgery types
The study enrolled 14 women and 2 men with severe refractory postbariatric surgery hypoglycemia despite medical nutrition therapy. A majority (9) had undergone Roux-en-Y gastric bypass, 4 had vertical sleeve gastrectomy, 2 gastrectomy, and 1 had Nissen fundoplication. Seven patients (43.7%) had experienced loss of consciousness from hyperinsulinemic hypoglycemia. None had diabetes.
They were randomly assigned to either subcutaneous 45 mg of avexitide twice daily or 90 mg once daily for 14 days each, with a 2-day washout period followed by a switch to the other dose.
Both doses resulted in significant reductions in hypoglycemia as measured by self–blood glucose monitoring. The once-daily dose reduced level 1 hypoglycemia (glucose < 70 mg/dL) by 67.5% and it reduced level 2 (< 54 mg/dL) by 53.3% (P = .0043).
Even greater reductions were seen in severe hypoglycemia (that is, altered mental status/requiring assistance) – by 67.5% for the twice-daily dose (P = .0003) and by 66.1% with the once-daily dose (P = .0003).
“This is consistent with what we’ve seen in prior avexitide trials,” Dr. Tan noted.
More hypoglycemic events were captured using blinded continuous glucose monitoring (CGM), since it picked up episodes of which the patient was unaware. There were significant reductions in percentage time spent in level 1 and level 2 hypoglycemia, as well as in absolute number of hypoglycemic events over 14 days.
Here, the effect was greater with the once-daily 90 mg dose, with reductions of up to 65% in time spent and number of events, but results for the twice-daily dose were also significant, Dr. Tan said.
The drug was effective across all surgical subtypes. Patients who underwent vertical sleeve gastrectomy/gastrectomy had greater rates of hypoglycemia at baseline and “robust responses to avexitide subcutaneous injections. This supports the critical role of GLP-1,” Dr. Tan said.
There were no severe adverse events. The most commonly reported adverse events were diarrhea, headache, bloating, and injection-site reaction/bruising. All were mild and self-limited and resolved without treatment. No participants withdrew from the study.
Eiger Biopharmaceuticals is currently working with the U.S. Food and Drug Administration and the European Medicines Agency to design a phase 3 trial.
The study is an investor-initiated trial with funding from Eiger Biopharmaceuticals. Dr. Tan receives research support from Eiger Biopharmaceuticals as a site investigator. Dr. Van Name is an investigator for a trial sponsored by Provention Bio.
A version of this article first appeared on Medscape.com.
Avexitide (Eiger Biopharmaceuticals), a first-in-class glucagonlike peptide (GLP)–1 receptor blocker, significantly reduced hypoglycemia in patients with refractory postbariatric hypoglycemia, new research finds.
Postbariatric hypoglycemia is a complication of bariatric surgery that is estimated to occur in about 29%-34% of people who undergo Roux-en-Y gastric bypass and in 11%-23% of those who undergo vertical sleeve gastrectomy. It typically manifests about 1-3 hours after meals and can lead to severe neuroglycopenic symptoms including blurred vision, confusion, drowsiness, and incoordination.
In addition, more than one-third (37%) with the condition have hypoglycemic unawareness. This can lead to seizures in about 59%, loss of consciousness and hospitalization in 50%, motor vehicle accidents, and even death. More than 90% with the condition consider themselves disabled, and 41% report being unable to work.
There are no currently approved medical treatments for postbariatric hypoglycemia. The standard of care is medical nutrition therapy involving a low-carbohydrate diet with carb restriction and small, frequent mixed meals. If this doesn’t work, off-label stepped pharmacotherapy has been tried, including acarbose (Precose), octreotide (Sandostatin), and diazoxide (Proglycem).
But “these are limited by efficacy and tolerability,” said Marilyn Tan, MD, who presented the findings from the phase 2 trial of avexitide at the annual meeting of the Endocrine Society.
In very severe cases, gastrostomy tubes or bypass reversal are options but those lead to weight regain and incomplete efficacy. “Safe, effective, and targeted therapies are needed urgently for postbariatric hypoglycemia,” said Dr. Tan, of the department of endocrinology at Stanford (Calif.) University.
The pathophysiology isn’t fully understood, but there appears to be an exaggerated GLP-1 response that leads to abnormal insulin secretion and symptomatic hyperinsulinemic hypoglycemia. Avexitide (formerly exendin 9-39), blocks the GLP-1 receptor and mitigates the excessive GLP-1 response, she explained.
Asked to comment, session moderator Michelle Van Name, MD, told this news organization, “This is a problem and it’s important for us to understand more about it and to identify different treatment options so these patients can continue to live their full, healthy lives post bariatric surgery.”
And, avexitide also holds potential for treating congenital hyperinsulinism, “which is a very challenging disease to treat in babies,” noted Dr. Van Name, a pediatric endocrinologist at Yale University, New Haven, Conn.
Drug reduced all levels of hypoglycemia, across surgery types
The study enrolled 14 women and 2 men with severe refractory postbariatric surgery hypoglycemia despite medical nutrition therapy. A majority (9) had undergone Roux-en-Y gastric bypass, 4 had vertical sleeve gastrectomy, 2 gastrectomy, and 1 had Nissen fundoplication. Seven patients (43.7%) had experienced loss of consciousness from hyperinsulinemic hypoglycemia. None had diabetes.
They were randomly assigned to either subcutaneous 45 mg of avexitide twice daily or 90 mg once daily for 14 days each, with a 2-day washout period followed by a switch to the other dose.
Both doses resulted in significant reductions in hypoglycemia as measured by self–blood glucose monitoring. The once-daily dose reduced level 1 hypoglycemia (glucose < 70 mg/dL) by 67.5% and it reduced level 2 (< 54 mg/dL) by 53.3% (P = .0043).
Even greater reductions were seen in severe hypoglycemia (that is, altered mental status/requiring assistance) – by 67.5% for the twice-daily dose (P = .0003) and by 66.1% with the once-daily dose (P = .0003).
“This is consistent with what we’ve seen in prior avexitide trials,” Dr. Tan noted.
More hypoglycemic events were captured using blinded continuous glucose monitoring (CGM), since it picked up episodes of which the patient was unaware. There were significant reductions in percentage time spent in level 1 and level 2 hypoglycemia, as well as in absolute number of hypoglycemic events over 14 days.
Here, the effect was greater with the once-daily 90 mg dose, with reductions of up to 65% in time spent and number of events, but results for the twice-daily dose were also significant, Dr. Tan said.
The drug was effective across all surgical subtypes. Patients who underwent vertical sleeve gastrectomy/gastrectomy had greater rates of hypoglycemia at baseline and “robust responses to avexitide subcutaneous injections. This supports the critical role of GLP-1,” Dr. Tan said.
There were no severe adverse events. The most commonly reported adverse events were diarrhea, headache, bloating, and injection-site reaction/bruising. All were mild and self-limited and resolved without treatment. No participants withdrew from the study.
Eiger Biopharmaceuticals is currently working with the U.S. Food and Drug Administration and the European Medicines Agency to design a phase 3 trial.
The study is an investor-initiated trial with funding from Eiger Biopharmaceuticals. Dr. Tan receives research support from Eiger Biopharmaceuticals as a site investigator. Dr. Van Name is an investigator for a trial sponsored by Provention Bio.
A version of this article first appeared on Medscape.com.
Avexitide (Eiger Biopharmaceuticals), a first-in-class glucagonlike peptide (GLP)–1 receptor blocker, significantly reduced hypoglycemia in patients with refractory postbariatric hypoglycemia, new research finds.
Postbariatric hypoglycemia is a complication of bariatric surgery that is estimated to occur in about 29%-34% of people who undergo Roux-en-Y gastric bypass and in 11%-23% of those who undergo vertical sleeve gastrectomy. It typically manifests about 1-3 hours after meals and can lead to severe neuroglycopenic symptoms including blurred vision, confusion, drowsiness, and incoordination.
In addition, more than one-third (37%) with the condition have hypoglycemic unawareness. This can lead to seizures in about 59%, loss of consciousness and hospitalization in 50%, motor vehicle accidents, and even death. More than 90% with the condition consider themselves disabled, and 41% report being unable to work.
There are no currently approved medical treatments for postbariatric hypoglycemia. The standard of care is medical nutrition therapy involving a low-carbohydrate diet with carb restriction and small, frequent mixed meals. If this doesn’t work, off-label stepped pharmacotherapy has been tried, including acarbose (Precose), octreotide (Sandostatin), and diazoxide (Proglycem).
But “these are limited by efficacy and tolerability,” said Marilyn Tan, MD, who presented the findings from the phase 2 trial of avexitide at the annual meeting of the Endocrine Society.
In very severe cases, gastrostomy tubes or bypass reversal are options but those lead to weight regain and incomplete efficacy. “Safe, effective, and targeted therapies are needed urgently for postbariatric hypoglycemia,” said Dr. Tan, of the department of endocrinology at Stanford (Calif.) University.
The pathophysiology isn’t fully understood, but there appears to be an exaggerated GLP-1 response that leads to abnormal insulin secretion and symptomatic hyperinsulinemic hypoglycemia. Avexitide (formerly exendin 9-39), blocks the GLP-1 receptor and mitigates the excessive GLP-1 response, she explained.
Asked to comment, session moderator Michelle Van Name, MD, told this news organization, “This is a problem and it’s important for us to understand more about it and to identify different treatment options so these patients can continue to live their full, healthy lives post bariatric surgery.”
And, avexitide also holds potential for treating congenital hyperinsulinism, “which is a very challenging disease to treat in babies,” noted Dr. Van Name, a pediatric endocrinologist at Yale University, New Haven, Conn.
Drug reduced all levels of hypoglycemia, across surgery types
The study enrolled 14 women and 2 men with severe refractory postbariatric surgery hypoglycemia despite medical nutrition therapy. A majority (9) had undergone Roux-en-Y gastric bypass, 4 had vertical sleeve gastrectomy, 2 gastrectomy, and 1 had Nissen fundoplication. Seven patients (43.7%) had experienced loss of consciousness from hyperinsulinemic hypoglycemia. None had diabetes.
They were randomly assigned to either subcutaneous 45 mg of avexitide twice daily or 90 mg once daily for 14 days each, with a 2-day washout period followed by a switch to the other dose.
Both doses resulted in significant reductions in hypoglycemia as measured by self–blood glucose monitoring. The once-daily dose reduced level 1 hypoglycemia (glucose < 70 mg/dL) by 67.5% and it reduced level 2 (< 54 mg/dL) by 53.3% (P = .0043).
Even greater reductions were seen in severe hypoglycemia (that is, altered mental status/requiring assistance) – by 67.5% for the twice-daily dose (P = .0003) and by 66.1% with the once-daily dose (P = .0003).
“This is consistent with what we’ve seen in prior avexitide trials,” Dr. Tan noted.
More hypoglycemic events were captured using blinded continuous glucose monitoring (CGM), since it picked up episodes of which the patient was unaware. There were significant reductions in percentage time spent in level 1 and level 2 hypoglycemia, as well as in absolute number of hypoglycemic events over 14 days.
Here, the effect was greater with the once-daily 90 mg dose, with reductions of up to 65% in time spent and number of events, but results for the twice-daily dose were also significant, Dr. Tan said.
The drug was effective across all surgical subtypes. Patients who underwent vertical sleeve gastrectomy/gastrectomy had greater rates of hypoglycemia at baseline and “robust responses to avexitide subcutaneous injections. This supports the critical role of GLP-1,” Dr. Tan said.
There were no severe adverse events. The most commonly reported adverse events were diarrhea, headache, bloating, and injection-site reaction/bruising. All were mild and self-limited and resolved without treatment. No participants withdrew from the study.
Eiger Biopharmaceuticals is currently working with the U.S. Food and Drug Administration and the European Medicines Agency to design a phase 3 trial.
The study is an investor-initiated trial with funding from Eiger Biopharmaceuticals. Dr. Tan receives research support from Eiger Biopharmaceuticals as a site investigator. Dr. Van Name is an investigator for a trial sponsored by Provention Bio.
A version of this article first appeared on Medscape.com.
FROM ENDO 2022
Stem cell transplants could be ‘transformational’ in type 1 diabetes
NEW ORLEANS – Two patients with type 1 diabetes have now experienced improved blood glucose control with Vertex Pharmaceutical’s investigational allogeneic stem cell–derived islets (VX-880), with the first person now completely insulin independent at 9 months post transplant.
Prior to the procedure, both patients had hypoglycemic unawareness and had experienced multiple episodes of severe hypoglycemia, conditions considered severe enough to justify the risk of immune suppression (which is required for such stem cell–derived islet transplants as they are “foreign” to the recipient).
The first patient, a 64-year-old man with type 1 diabetes for more than 40 years, now has a hemoglobin A1c in the normal range without taking any insulin more than 9 months after the procedure. The second, a 35-year-old woman with type 1 diabetes for 10.7 years, experienced a 30% reduction in insulin use and significant increased time spent in target glucose range, by 5 months post transplant. Both patients were given just half the targeted VX-880 dose.
Data for those two patients – the first in Vertex’s phase 1/2 multicenter, single-arm, open-label clinical trial of VX-880 – were reported at the annual scientific sessions of the American Diabetes Association, by James F. Markmann, MD, PhD.
He has been transplanting pancreatic islet cells from deceased donors into humans via infusion into the hepatic portal vein for over 20 years.
Transplantation of pancreatic islet cells obtained from cadavers have been shown to eliminate severe hypoglycemia and improve glycemic control in patients with type 1 diabetes, but they’re limited in quantity and are of variable quality. Islets that are manufactured via differentiation from human pluripotent stem cells represent an alternative, explained Dr. Markmann, chief of the division of transplant surgery at Massachusetts General Hospital, Boston.
“This is a new area. ... We hope this will be the same or potentially better. With stem cell–derived islets the quality, consistency, and reliability might produce a better result than with cadaveric islets,” he commented during a press briefing here.
A third patient has recently received the full targeted VX-880 dose but was not part of the current report. The planned enrollment is 17 patients. The trial is currently on clinical hold per the Food and Drug Administration concerning the criteria around dose escalation, but Vertex is working with the FDA to sort that out. Meanwhile, enrollment remains open in Canada, Dr. Markmann said.
In answer to a question about how patient 1 is doing now, Dr. Markmann replied, “He’s doing great. He’s probably the most appreciative patient I’ve ever met. His life was being destroyed by diabetes. He couldn’t work. He crashed his motorcycle from [low blood sugar]. He really was tremendously appreciative that he could participate.”
When Dr. Markmann explained the potential uncertainties and risks to the patient prior to the procedure, the patient replied: “I want to participate. If I die from this and I help somebody else I’d be happy, but I can’t go on living the way I’m living.”
“These people really suffer and this, I think, brings hope to them,” Dr. Markmann said.
‘Beautiful data’ seen in two patients, with ‘transformational’ potential
Asked to comment, Marlon Pragnell, PhD, vice president for Research & Science at the ADA, told this news organization: “It’s beautiful data. People who have type 1 diabetes lack [pancreatic] beta cells ... it was impossible to get sufficient beta cells from cadaveric transplants. It’s just nowhere near enough. If this is safe and effective, if they continue to show safety and efficacy like patient 1, this will be transformational.”
Dr. Markmann presented data for the most recent study visit for each of the two patients, 270 days for patient 1 and 150 days for patient 2. Prior to the transplants, patient 1 had experienced five severe hypoglycemic events and patient 2 had experienced three.
Both had undetectable C-peptide levels at baseline. In response to a mixed-meal tolerance test, patient 1 showed a “robust” C-peptide response by day 90, which increased by day 180. Those levels had dropped but were still detectable by day 270, “possibly due to improved insulin sensitivity,” Dr. Markmann said.
Similarly, Patient 2 also had increased C-peptide that increased to detectable range by day 90 with improved glucose disposal.
Hemoglobin A1c dropped in patient 1 from 8.6% at baseline to 6.9% at day 180, to a “remarkable” 5.2% at day 270. For patient 2, the drop was from 7.5% to a nadir of 6.4% by day 57, then reversing back to 7.1% at day 150.
Both patients also had significant reductions in insulin dose. For patient 1, the dose reduction was more than 90% – from 34 units at baseline to 2.6 units by day 90. By day 210 he was able to stop insulin and by day 270 he met formal criteria for insulin independence.
Patient 2 also had a significant reduction in insulin dose, from 25.9 units to 18.7 by day 57 and remained stable thereafter, at 18.2 units by day 150.
Asked why Patient 2’s results weren’t quite as impressive as patient 1’s, Dr. Markmann replied “I think what’s important is that both patients did great. And since this was a half-dose, we might have expected that the outcome was going to be more like patient 2 rather than patient 1. So, I think we’re just going to have to [study this in] more patients to understand where it falls.”
Although patient 1 experienced a cluster of six severe hypoglycemic events early in the posttransplant period, he had no further events after day 35. Patient 2 had no severe hypoglycemic events.
Other safety events were generally consistent with that seen with the immunosuppressive regimen in the perioperative period. Patient 1 had a “mild and self-limited” rise in liver function test and also experienced two severe adverse events: A rash from the immune suppression that resolved spontaneously, and dehydration requiring hospitalization on day 186. Patient 2’s adverse events were all mild to moderate, most commonly headache and hypomagnesemia and not related to VX-880.
Immunosuppression: Work is ongoing
The immunosuppression regimen used comprises a depletion of lymphocytes at induction, followed by a maintenance regimen of two standard agents used in kidney transplant patients and found to be well tolerated, Dr. Markmann said.
Still, the risk of immunosuppression generally outweighs the potential benefit for most people with type 1 diabetes who are managing reasonably well with insulin treatment.
“This is part one of a two-part problem. One is to have a reliable, consistent, effective cell therapy. The second is to develop an approach that doesn’t require immunosuppression. ... But if we had a way of transplanting the cells without the need for immunosuppression, then it could be really widely available. That’s an opportunity for the future since these cells can be made in unlimited quantities,” Dr. Markmann commented during the press briefing.
Asked for his thoughts about the immunosuppression aspect, Dr. Pragnell told this news organization: “Immune suppression is a concern, but I feel that this is just the start of so much research in this area. They’re going to take this step by step. This is just the start. My understanding is they have additional strategies around immune suppression, and in the future they might not even need immunosuppression. But even at this stage right now, it’s amazing.”
He added: “The ‘artificial pancreas’ is a huge step forward, but it’s just a bridge to a cure, whereas if they’re able to show safety and efficacy, this is potentially a cure. ... I’m very excited about it.”
Dr. Markmann serves on advisory boards for iTolerance, eGenesis, and QihanBio. He is a consultant to Vertex Pharmaceuticals. Dr. Pragnell is an ADA employee and has no further disclosures.
A version of this article first appeared on Medscape.com.
NEW ORLEANS – Two patients with type 1 diabetes have now experienced improved blood glucose control with Vertex Pharmaceutical’s investigational allogeneic stem cell–derived islets (VX-880), with the first person now completely insulin independent at 9 months post transplant.
Prior to the procedure, both patients had hypoglycemic unawareness and had experienced multiple episodes of severe hypoglycemia, conditions considered severe enough to justify the risk of immune suppression (which is required for such stem cell–derived islet transplants as they are “foreign” to the recipient).
The first patient, a 64-year-old man with type 1 diabetes for more than 40 years, now has a hemoglobin A1c in the normal range without taking any insulin more than 9 months after the procedure. The second, a 35-year-old woman with type 1 diabetes for 10.7 years, experienced a 30% reduction in insulin use and significant increased time spent in target glucose range, by 5 months post transplant. Both patients were given just half the targeted VX-880 dose.
Data for those two patients – the first in Vertex’s phase 1/2 multicenter, single-arm, open-label clinical trial of VX-880 – were reported at the annual scientific sessions of the American Diabetes Association, by James F. Markmann, MD, PhD.
He has been transplanting pancreatic islet cells from deceased donors into humans via infusion into the hepatic portal vein for over 20 years.
Transplantation of pancreatic islet cells obtained from cadavers have been shown to eliminate severe hypoglycemia and improve glycemic control in patients with type 1 diabetes, but they’re limited in quantity and are of variable quality. Islets that are manufactured via differentiation from human pluripotent stem cells represent an alternative, explained Dr. Markmann, chief of the division of transplant surgery at Massachusetts General Hospital, Boston.
“This is a new area. ... We hope this will be the same or potentially better. With stem cell–derived islets the quality, consistency, and reliability might produce a better result than with cadaveric islets,” he commented during a press briefing here.
A third patient has recently received the full targeted VX-880 dose but was not part of the current report. The planned enrollment is 17 patients. The trial is currently on clinical hold per the Food and Drug Administration concerning the criteria around dose escalation, but Vertex is working with the FDA to sort that out. Meanwhile, enrollment remains open in Canada, Dr. Markmann said.
In answer to a question about how patient 1 is doing now, Dr. Markmann replied, “He’s doing great. He’s probably the most appreciative patient I’ve ever met. His life was being destroyed by diabetes. He couldn’t work. He crashed his motorcycle from [low blood sugar]. He really was tremendously appreciative that he could participate.”
When Dr. Markmann explained the potential uncertainties and risks to the patient prior to the procedure, the patient replied: “I want to participate. If I die from this and I help somebody else I’d be happy, but I can’t go on living the way I’m living.”
“These people really suffer and this, I think, brings hope to them,” Dr. Markmann said.
‘Beautiful data’ seen in two patients, with ‘transformational’ potential
Asked to comment, Marlon Pragnell, PhD, vice president for Research & Science at the ADA, told this news organization: “It’s beautiful data. People who have type 1 diabetes lack [pancreatic] beta cells ... it was impossible to get sufficient beta cells from cadaveric transplants. It’s just nowhere near enough. If this is safe and effective, if they continue to show safety and efficacy like patient 1, this will be transformational.”
Dr. Markmann presented data for the most recent study visit for each of the two patients, 270 days for patient 1 and 150 days for patient 2. Prior to the transplants, patient 1 had experienced five severe hypoglycemic events and patient 2 had experienced three.
Both had undetectable C-peptide levels at baseline. In response to a mixed-meal tolerance test, patient 1 showed a “robust” C-peptide response by day 90, which increased by day 180. Those levels had dropped but were still detectable by day 270, “possibly due to improved insulin sensitivity,” Dr. Markmann said.
Similarly, Patient 2 also had increased C-peptide that increased to detectable range by day 90 with improved glucose disposal.
Hemoglobin A1c dropped in patient 1 from 8.6% at baseline to 6.9% at day 180, to a “remarkable” 5.2% at day 270. For patient 2, the drop was from 7.5% to a nadir of 6.4% by day 57, then reversing back to 7.1% at day 150.
Both patients also had significant reductions in insulin dose. For patient 1, the dose reduction was more than 90% – from 34 units at baseline to 2.6 units by day 90. By day 210 he was able to stop insulin and by day 270 he met formal criteria for insulin independence.
Patient 2 also had a significant reduction in insulin dose, from 25.9 units to 18.7 by day 57 and remained stable thereafter, at 18.2 units by day 150.
Asked why Patient 2’s results weren’t quite as impressive as patient 1’s, Dr. Markmann replied “I think what’s important is that both patients did great. And since this was a half-dose, we might have expected that the outcome was going to be more like patient 2 rather than patient 1. So, I think we’re just going to have to [study this in] more patients to understand where it falls.”
Although patient 1 experienced a cluster of six severe hypoglycemic events early in the posttransplant period, he had no further events after day 35. Patient 2 had no severe hypoglycemic events.
Other safety events were generally consistent with that seen with the immunosuppressive regimen in the perioperative period. Patient 1 had a “mild and self-limited” rise in liver function test and also experienced two severe adverse events: A rash from the immune suppression that resolved spontaneously, and dehydration requiring hospitalization on day 186. Patient 2’s adverse events were all mild to moderate, most commonly headache and hypomagnesemia and not related to VX-880.
Immunosuppression: Work is ongoing
The immunosuppression regimen used comprises a depletion of lymphocytes at induction, followed by a maintenance regimen of two standard agents used in kidney transplant patients and found to be well tolerated, Dr. Markmann said.
Still, the risk of immunosuppression generally outweighs the potential benefit for most people with type 1 diabetes who are managing reasonably well with insulin treatment.
“This is part one of a two-part problem. One is to have a reliable, consistent, effective cell therapy. The second is to develop an approach that doesn’t require immunosuppression. ... But if we had a way of transplanting the cells without the need for immunosuppression, then it could be really widely available. That’s an opportunity for the future since these cells can be made in unlimited quantities,” Dr. Markmann commented during the press briefing.
Asked for his thoughts about the immunosuppression aspect, Dr. Pragnell told this news organization: “Immune suppression is a concern, but I feel that this is just the start of so much research in this area. They’re going to take this step by step. This is just the start. My understanding is they have additional strategies around immune suppression, and in the future they might not even need immunosuppression. But even at this stage right now, it’s amazing.”
He added: “The ‘artificial pancreas’ is a huge step forward, but it’s just a bridge to a cure, whereas if they’re able to show safety and efficacy, this is potentially a cure. ... I’m very excited about it.”
Dr. Markmann serves on advisory boards for iTolerance, eGenesis, and QihanBio. He is a consultant to Vertex Pharmaceuticals. Dr. Pragnell is an ADA employee and has no further disclosures.
A version of this article first appeared on Medscape.com.
NEW ORLEANS – Two patients with type 1 diabetes have now experienced improved blood glucose control with Vertex Pharmaceutical’s investigational allogeneic stem cell–derived islets (VX-880), with the first person now completely insulin independent at 9 months post transplant.
Prior to the procedure, both patients had hypoglycemic unawareness and had experienced multiple episodes of severe hypoglycemia, conditions considered severe enough to justify the risk of immune suppression (which is required for such stem cell–derived islet transplants as they are “foreign” to the recipient).
The first patient, a 64-year-old man with type 1 diabetes for more than 40 years, now has a hemoglobin A1c in the normal range without taking any insulin more than 9 months after the procedure. The second, a 35-year-old woman with type 1 diabetes for 10.7 years, experienced a 30% reduction in insulin use and significant increased time spent in target glucose range, by 5 months post transplant. Both patients were given just half the targeted VX-880 dose.
Data for those two patients – the first in Vertex’s phase 1/2 multicenter, single-arm, open-label clinical trial of VX-880 – were reported at the annual scientific sessions of the American Diabetes Association, by James F. Markmann, MD, PhD.
He has been transplanting pancreatic islet cells from deceased donors into humans via infusion into the hepatic portal vein for over 20 years.
Transplantation of pancreatic islet cells obtained from cadavers have been shown to eliminate severe hypoglycemia and improve glycemic control in patients with type 1 diabetes, but they’re limited in quantity and are of variable quality. Islets that are manufactured via differentiation from human pluripotent stem cells represent an alternative, explained Dr. Markmann, chief of the division of transplant surgery at Massachusetts General Hospital, Boston.
“This is a new area. ... We hope this will be the same or potentially better. With stem cell–derived islets the quality, consistency, and reliability might produce a better result than with cadaveric islets,” he commented during a press briefing here.
A third patient has recently received the full targeted VX-880 dose but was not part of the current report. The planned enrollment is 17 patients. The trial is currently on clinical hold per the Food and Drug Administration concerning the criteria around dose escalation, but Vertex is working with the FDA to sort that out. Meanwhile, enrollment remains open in Canada, Dr. Markmann said.
In answer to a question about how patient 1 is doing now, Dr. Markmann replied, “He’s doing great. He’s probably the most appreciative patient I’ve ever met. His life was being destroyed by diabetes. He couldn’t work. He crashed his motorcycle from [low blood sugar]. He really was tremendously appreciative that he could participate.”
When Dr. Markmann explained the potential uncertainties and risks to the patient prior to the procedure, the patient replied: “I want to participate. If I die from this and I help somebody else I’d be happy, but I can’t go on living the way I’m living.”
“These people really suffer and this, I think, brings hope to them,” Dr. Markmann said.
‘Beautiful data’ seen in two patients, with ‘transformational’ potential
Asked to comment, Marlon Pragnell, PhD, vice president for Research & Science at the ADA, told this news organization: “It’s beautiful data. People who have type 1 diabetes lack [pancreatic] beta cells ... it was impossible to get sufficient beta cells from cadaveric transplants. It’s just nowhere near enough. If this is safe and effective, if they continue to show safety and efficacy like patient 1, this will be transformational.”
Dr. Markmann presented data for the most recent study visit for each of the two patients, 270 days for patient 1 and 150 days for patient 2. Prior to the transplants, patient 1 had experienced five severe hypoglycemic events and patient 2 had experienced three.
Both had undetectable C-peptide levels at baseline. In response to a mixed-meal tolerance test, patient 1 showed a “robust” C-peptide response by day 90, which increased by day 180. Those levels had dropped but were still detectable by day 270, “possibly due to improved insulin sensitivity,” Dr. Markmann said.
Similarly, Patient 2 also had increased C-peptide that increased to detectable range by day 90 with improved glucose disposal.
Hemoglobin A1c dropped in patient 1 from 8.6% at baseline to 6.9% at day 180, to a “remarkable” 5.2% at day 270. For patient 2, the drop was from 7.5% to a nadir of 6.4% by day 57, then reversing back to 7.1% at day 150.
Both patients also had significant reductions in insulin dose. For patient 1, the dose reduction was more than 90% – from 34 units at baseline to 2.6 units by day 90. By day 210 he was able to stop insulin and by day 270 he met formal criteria for insulin independence.
Patient 2 also had a significant reduction in insulin dose, from 25.9 units to 18.7 by day 57 and remained stable thereafter, at 18.2 units by day 150.
Asked why Patient 2’s results weren’t quite as impressive as patient 1’s, Dr. Markmann replied “I think what’s important is that both patients did great. And since this was a half-dose, we might have expected that the outcome was going to be more like patient 2 rather than patient 1. So, I think we’re just going to have to [study this in] more patients to understand where it falls.”
Although patient 1 experienced a cluster of six severe hypoglycemic events early in the posttransplant period, he had no further events after day 35. Patient 2 had no severe hypoglycemic events.
Other safety events were generally consistent with that seen with the immunosuppressive regimen in the perioperative period. Patient 1 had a “mild and self-limited” rise in liver function test and also experienced two severe adverse events: A rash from the immune suppression that resolved spontaneously, and dehydration requiring hospitalization on day 186. Patient 2’s adverse events were all mild to moderate, most commonly headache and hypomagnesemia and not related to VX-880.
Immunosuppression: Work is ongoing
The immunosuppression regimen used comprises a depletion of lymphocytes at induction, followed by a maintenance regimen of two standard agents used in kidney transplant patients and found to be well tolerated, Dr. Markmann said.
Still, the risk of immunosuppression generally outweighs the potential benefit for most people with type 1 diabetes who are managing reasonably well with insulin treatment.
“This is part one of a two-part problem. One is to have a reliable, consistent, effective cell therapy. The second is to develop an approach that doesn’t require immunosuppression. ... But if we had a way of transplanting the cells without the need for immunosuppression, then it could be really widely available. That’s an opportunity for the future since these cells can be made in unlimited quantities,” Dr. Markmann commented during the press briefing.
Asked for his thoughts about the immunosuppression aspect, Dr. Pragnell told this news organization: “Immune suppression is a concern, but I feel that this is just the start of so much research in this area. They’re going to take this step by step. This is just the start. My understanding is they have additional strategies around immune suppression, and in the future they might not even need immunosuppression. But even at this stage right now, it’s amazing.”
He added: “The ‘artificial pancreas’ is a huge step forward, but it’s just a bridge to a cure, whereas if they’re able to show safety and efficacy, this is potentially a cure. ... I’m very excited about it.”
Dr. Markmann serves on advisory boards for iTolerance, eGenesis, and QihanBio. He is a consultant to Vertex Pharmaceuticals. Dr. Pragnell is an ADA employee and has no further disclosures.
A version of this article first appeared on Medscape.com.
AT ADA 2022
Obesity in adolescence raises risk for adult type 1 diabetes
NEW ORLEANS – Obesity in adolescence is linked to an increased risk for type 1 diabetes onset in adulthood, new research suggests.
These new data, from Israeli military recruits followed for over a decade, suggest that obesity may be playing a causal role in type 1 as well as type 2 diabetes.
The incidence of type 1 diabetes has been increasing by about 2%-3% annually over recent decades, but the reasons aren’t clear. The study is the first to examine the role of obesity in adolescence and type 1 diabetes in young adulthood, and also the first to examine the question of using antibody status as part of the criteria for a type 1 diagnosis.
The findings were reported at the annual scientific sessions of the American Diabetes Association by Gilad Twig, MD, PhD, professor of medicine at Sheba Medical Center, Tel HaShomer, Israel. “For people who might have a high risk for developing type 1 diabetes, these results emphasize the importance of maintaining a normal weight,” he said in an interview. He noted that, although this recommendation applies to everyone, “here it’s becoming more precise for the population – more individualized in the sense that this might specifically help you.”
Naveed Sattar, PhD, professor and honorary consultant in cardiovascular and medical sciences at the University of Glasgow, said in an interview that carrying too much weight “will make the pancreas have to work harder to make insulin to keep the sugar normal. So, if you’re stressing the system and the pancreas is already likely to fail, it will fail faster.”
Clinically, Dr. Sattar said, “Lifestyle does matter to the risk of developing type 1 diabetes. The weighting may be different [from type 2]. The major factor in type 1 is still the genetics, but if you have a family history of type 1 and your genetic potential is greater, you will minimize your risk by staying leaner.”
Study highlights that type 1 is not always ‘juvenile’
In addition to countering the long-held belief that type 1 diabetes is primarily a condition of thin individuals and unrelated to obesity, the data also reinforce the emerging recognition that type 1 diabetes isn’t always “juvenile” and in fact often arises in adulthood.
“About half of all cases of type 1 diabetes develop after age 18. By reputation, people think it’s a disease of children. But it’s begun to grow so that now 50% of cases occur after late adolescence,” noted Dr. Twig.
Dr. Sattar pointed to a UK Biobank study showing that nearly half of all cases of type 1 diabetes arise after age 30 years. “You absolutely can get type 1 in adulthood. It’s not rare.”
Direct correlation seen in otherwise healthy young people
The retrospective nationwide cohort study included 1,426,362 17-year-olds (834,050 male and 592,312 female) who underwent medical evaluation prior to military conscription starting in January 1996 and followed them through 2016. At baseline, none had a history of dysglycemia.
The data were linked with information about adult-onset type 1 diabetes in the Israeli National Diabetes Registry. In all, 777 incident type 1 diabetes cases were recorded over the study period, with a rate of 4.9 cases per 100,000 person-years.
Over a median follow-up of 11.2 years, there was a graded incidence of type 1 diabetes across BMI groups from underweight to obesity, from 3.6 to 8.4 cases per 100,000 person-years.
After adjustment for sex, birth year, age at study entry, education, and cognitive performance with BMI 5th-49th percentiles as the reference, the hazard ratios were 1.05 for the 50th-74th BMI percentiles, 1.41 for 75th-84th, 1.54 for those who were overweight, and 2.05 for those with obesity.
Every 5-unit increment in BMI corresponded to a 35% greater incidence of type 1 diabetes (adjusted hazard ratio 1.35) and every one increment was associated with a 35% greater risk (1.25), both values significant.
Sensitivity analyses resulted in similar findings for those with no other chronic health conditions at baseline. The results also didn’t change in a separate analysis of 574,720 subjects in whom autoantibody data were available to confirm the type 1 diabetes diagnosis.
Hypotheses for mechanisms
The mechanism for the association isn’t clear, but in a simultaneously published article in Diabetologia, Dr. Twig and colleagues outline several hypotheses. One relates to the growing evidence of a link between various autoimmune conditions, which point to the possibility of elevated adipokines and cytokines in obesity diminishing self-tolerance by promoting proinflammatory processes.
The authors cite data from the TrialNet Pathway to Prevention study of relatives of people with type 1 diabetes in which participants who were overweight and obese had an increased risk of islet autoantibody expression. However, not all data have supported this finding.
“Obesity is related to several other autoimmune conditions, so it’s not a complete surprise it might be related to another,” Dr. Twig noted.
Other possibilities include vitamin D deficiency, a high-fat diet, and alterations in gut microbiota.
And then there’s the “accelerator hypothesis,” suggesting that both type 1 and type 2 diabetes result from insulin resistance and genetic background that affect the rate of beta cell loss and the disease phenotype. Dr. Sattar said that the accelerator hypotheses “makes complete sense to me. Because the population is so obese, we’re seeing it more now whereas we might not have seen it 40 years ago when the BMI differentials were far less in society.”
Dr. Twig has no disclosures. Dr. Sattar has consulted for or received lecture fees from Amgen, AstraZeneca, Boehringer Ingelheim, Eli Lilly, Hanmi Pharmaceutical, Merck Sharp & Dohme, Novartis, Novo Nordisk, Pfizer, and Sanofi, and received grant support from AstraZeneca, Boehringer Ingelheim, Novartis, and Roche Diagnostics through his institution.
NEW ORLEANS – Obesity in adolescence is linked to an increased risk for type 1 diabetes onset in adulthood, new research suggests.
These new data, from Israeli military recruits followed for over a decade, suggest that obesity may be playing a causal role in type 1 as well as type 2 diabetes.
The incidence of type 1 diabetes has been increasing by about 2%-3% annually over recent decades, but the reasons aren’t clear. The study is the first to examine the role of obesity in adolescence and type 1 diabetes in young adulthood, and also the first to examine the question of using antibody status as part of the criteria for a type 1 diagnosis.
The findings were reported at the annual scientific sessions of the American Diabetes Association by Gilad Twig, MD, PhD, professor of medicine at Sheba Medical Center, Tel HaShomer, Israel. “For people who might have a high risk for developing type 1 diabetes, these results emphasize the importance of maintaining a normal weight,” he said in an interview. He noted that, although this recommendation applies to everyone, “here it’s becoming more precise for the population – more individualized in the sense that this might specifically help you.”
Naveed Sattar, PhD, professor and honorary consultant in cardiovascular and medical sciences at the University of Glasgow, said in an interview that carrying too much weight “will make the pancreas have to work harder to make insulin to keep the sugar normal. So, if you’re stressing the system and the pancreas is already likely to fail, it will fail faster.”
Clinically, Dr. Sattar said, “Lifestyle does matter to the risk of developing type 1 diabetes. The weighting may be different [from type 2]. The major factor in type 1 is still the genetics, but if you have a family history of type 1 and your genetic potential is greater, you will minimize your risk by staying leaner.”
Study highlights that type 1 is not always ‘juvenile’
In addition to countering the long-held belief that type 1 diabetes is primarily a condition of thin individuals and unrelated to obesity, the data also reinforce the emerging recognition that type 1 diabetes isn’t always “juvenile” and in fact often arises in adulthood.
“About half of all cases of type 1 diabetes develop after age 18. By reputation, people think it’s a disease of children. But it’s begun to grow so that now 50% of cases occur after late adolescence,” noted Dr. Twig.
Dr. Sattar pointed to a UK Biobank study showing that nearly half of all cases of type 1 diabetes arise after age 30 years. “You absolutely can get type 1 in adulthood. It’s not rare.”
Direct correlation seen in otherwise healthy young people
The retrospective nationwide cohort study included 1,426,362 17-year-olds (834,050 male and 592,312 female) who underwent medical evaluation prior to military conscription starting in January 1996 and followed them through 2016. At baseline, none had a history of dysglycemia.
The data were linked with information about adult-onset type 1 diabetes in the Israeli National Diabetes Registry. In all, 777 incident type 1 diabetes cases were recorded over the study period, with a rate of 4.9 cases per 100,000 person-years.
Over a median follow-up of 11.2 years, there was a graded incidence of type 1 diabetes across BMI groups from underweight to obesity, from 3.6 to 8.4 cases per 100,000 person-years.
After adjustment for sex, birth year, age at study entry, education, and cognitive performance with BMI 5th-49th percentiles as the reference, the hazard ratios were 1.05 for the 50th-74th BMI percentiles, 1.41 for 75th-84th, 1.54 for those who were overweight, and 2.05 for those with obesity.
Every 5-unit increment in BMI corresponded to a 35% greater incidence of type 1 diabetes (adjusted hazard ratio 1.35) and every one increment was associated with a 35% greater risk (1.25), both values significant.
Sensitivity analyses resulted in similar findings for those with no other chronic health conditions at baseline. The results also didn’t change in a separate analysis of 574,720 subjects in whom autoantibody data were available to confirm the type 1 diabetes diagnosis.
Hypotheses for mechanisms
The mechanism for the association isn’t clear, but in a simultaneously published article in Diabetologia, Dr. Twig and colleagues outline several hypotheses. One relates to the growing evidence of a link between various autoimmune conditions, which point to the possibility of elevated adipokines and cytokines in obesity diminishing self-tolerance by promoting proinflammatory processes.
The authors cite data from the TrialNet Pathway to Prevention study of relatives of people with type 1 diabetes in which participants who were overweight and obese had an increased risk of islet autoantibody expression. However, not all data have supported this finding.
“Obesity is related to several other autoimmune conditions, so it’s not a complete surprise it might be related to another,” Dr. Twig noted.
Other possibilities include vitamin D deficiency, a high-fat diet, and alterations in gut microbiota.
And then there’s the “accelerator hypothesis,” suggesting that both type 1 and type 2 diabetes result from insulin resistance and genetic background that affect the rate of beta cell loss and the disease phenotype. Dr. Sattar said that the accelerator hypotheses “makes complete sense to me. Because the population is so obese, we’re seeing it more now whereas we might not have seen it 40 years ago when the BMI differentials were far less in society.”
Dr. Twig has no disclosures. Dr. Sattar has consulted for or received lecture fees from Amgen, AstraZeneca, Boehringer Ingelheim, Eli Lilly, Hanmi Pharmaceutical, Merck Sharp & Dohme, Novartis, Novo Nordisk, Pfizer, and Sanofi, and received grant support from AstraZeneca, Boehringer Ingelheim, Novartis, and Roche Diagnostics through his institution.
NEW ORLEANS – Obesity in adolescence is linked to an increased risk for type 1 diabetes onset in adulthood, new research suggests.
These new data, from Israeli military recruits followed for over a decade, suggest that obesity may be playing a causal role in type 1 as well as type 2 diabetes.
The incidence of type 1 diabetes has been increasing by about 2%-3% annually over recent decades, but the reasons aren’t clear. The study is the first to examine the role of obesity in adolescence and type 1 diabetes in young adulthood, and also the first to examine the question of using antibody status as part of the criteria for a type 1 diagnosis.
The findings were reported at the annual scientific sessions of the American Diabetes Association by Gilad Twig, MD, PhD, professor of medicine at Sheba Medical Center, Tel HaShomer, Israel. “For people who might have a high risk for developing type 1 diabetes, these results emphasize the importance of maintaining a normal weight,” he said in an interview. He noted that, although this recommendation applies to everyone, “here it’s becoming more precise for the population – more individualized in the sense that this might specifically help you.”
Naveed Sattar, PhD, professor and honorary consultant in cardiovascular and medical sciences at the University of Glasgow, said in an interview that carrying too much weight “will make the pancreas have to work harder to make insulin to keep the sugar normal. So, if you’re stressing the system and the pancreas is already likely to fail, it will fail faster.”
Clinically, Dr. Sattar said, “Lifestyle does matter to the risk of developing type 1 diabetes. The weighting may be different [from type 2]. The major factor in type 1 is still the genetics, but if you have a family history of type 1 and your genetic potential is greater, you will minimize your risk by staying leaner.”
Study highlights that type 1 is not always ‘juvenile’
In addition to countering the long-held belief that type 1 diabetes is primarily a condition of thin individuals and unrelated to obesity, the data also reinforce the emerging recognition that type 1 diabetes isn’t always “juvenile” and in fact often arises in adulthood.
“About half of all cases of type 1 diabetes develop after age 18. By reputation, people think it’s a disease of children. But it’s begun to grow so that now 50% of cases occur after late adolescence,” noted Dr. Twig.
Dr. Sattar pointed to a UK Biobank study showing that nearly half of all cases of type 1 diabetes arise after age 30 years. “You absolutely can get type 1 in adulthood. It’s not rare.”
Direct correlation seen in otherwise healthy young people
The retrospective nationwide cohort study included 1,426,362 17-year-olds (834,050 male and 592,312 female) who underwent medical evaluation prior to military conscription starting in January 1996 and followed them through 2016. At baseline, none had a history of dysglycemia.
The data were linked with information about adult-onset type 1 diabetes in the Israeli National Diabetes Registry. In all, 777 incident type 1 diabetes cases were recorded over the study period, with a rate of 4.9 cases per 100,000 person-years.
Over a median follow-up of 11.2 years, there was a graded incidence of type 1 diabetes across BMI groups from underweight to obesity, from 3.6 to 8.4 cases per 100,000 person-years.
After adjustment for sex, birth year, age at study entry, education, and cognitive performance with BMI 5th-49th percentiles as the reference, the hazard ratios were 1.05 for the 50th-74th BMI percentiles, 1.41 for 75th-84th, 1.54 for those who were overweight, and 2.05 for those with obesity.
Every 5-unit increment in BMI corresponded to a 35% greater incidence of type 1 diabetes (adjusted hazard ratio 1.35) and every one increment was associated with a 35% greater risk (1.25), both values significant.
Sensitivity analyses resulted in similar findings for those with no other chronic health conditions at baseline. The results also didn’t change in a separate analysis of 574,720 subjects in whom autoantibody data were available to confirm the type 1 diabetes diagnosis.
Hypotheses for mechanisms
The mechanism for the association isn’t clear, but in a simultaneously published article in Diabetologia, Dr. Twig and colleagues outline several hypotheses. One relates to the growing evidence of a link between various autoimmune conditions, which point to the possibility of elevated adipokines and cytokines in obesity diminishing self-tolerance by promoting proinflammatory processes.
The authors cite data from the TrialNet Pathway to Prevention study of relatives of people with type 1 diabetes in which participants who were overweight and obese had an increased risk of islet autoantibody expression. However, not all data have supported this finding.
“Obesity is related to several other autoimmune conditions, so it’s not a complete surprise it might be related to another,” Dr. Twig noted.
Other possibilities include vitamin D deficiency, a high-fat diet, and alterations in gut microbiota.
And then there’s the “accelerator hypothesis,” suggesting that both type 1 and type 2 diabetes result from insulin resistance and genetic background that affect the rate of beta cell loss and the disease phenotype. Dr. Sattar said that the accelerator hypotheses “makes complete sense to me. Because the population is so obese, we’re seeing it more now whereas we might not have seen it 40 years ago when the BMI differentials were far less in society.”
Dr. Twig has no disclosures. Dr. Sattar has consulted for or received lecture fees from Amgen, AstraZeneca, Boehringer Ingelheim, Eli Lilly, Hanmi Pharmaceutical, Merck Sharp & Dohme, Novartis, Novo Nordisk, Pfizer, and Sanofi, and received grant support from AstraZeneca, Boehringer Ingelheim, Novartis, and Roche Diagnostics through his institution.
AT ADA 2022
ADA 2022 preview: Tirzepatide and much more
The full results on Lilly’s tirzepatide for obesity will likely dominate the headlines from the annual scientific sessions of the American Diabetes Association, but the conference program is jam-packed with new findings – and new paradigms – in both type 1 and type 2 diabetes management and prevention.
Taking place June 3-7 both in person – for the first time in 3 years – in New Orleans, and virtually, the “hybrid” meeting is mandating COVID-19 vaccination and mask wearing for all on-site attendees.
A major topic will be new findings and thinking in the treatment of type 2 diabetes, including the new twincretin tirzepatide, as well as discussions about the role of weight loss and the concept of “remission.” In type 1 diabetes, sessions will examine intervention trials to prevent progression, progress in islet transplantation, and the latest findings in diabetes technology.
Other key conference themes include the often interrelated topics of disparities, mental health, and COVID-19.
“I think that the scientific planning committee has put together a really outstanding program this year, covering the entire spectrum of diabetes care and research and translation for both type 1 and type 2 diabetes,” Scientific Planning Committee Chair Dana Dabelea, MD, PhD, professor of epidemiology and pediatrics at the University of Colorado Anschutz Medical Campus, Aurora, told this news organization.
Tirzepatide: The next big thing?
The presentation likely to generate the most buzz will take place Saturday morning, with the full detailed results from Lilly’s phase 3 SURMOUNT-1 trial of its dual-incretin tirzepatide for weight loss in people with obesity or overweight with at least one comorbidity but not diabetes.
Top-line results released by Lilly in April 2022 showed that the drug induced weight loss of up to 22%. Tirzepatide was approved May 13 by the Food and Drug Administration for type 2 diabetes under the brand name Mounjaro. It is not approved for weight loss.
“Certainly the general public will latch on to this idea that there is a drug they can lose 22% of their weight on,” Robert A. Gabbay, MD, PhD, ADA chief science and medical officer, told this news organization. “It’s hard to comment on a press release, so that’s why this presentation is going to be key.”
Another tirzepatide analysis, this one comparing its use to insulin glargine on kidney outcomes in participants with diabetes in the pivotal SURPASS-4 study, will be presented as an ADA Presidents’ Select Abstract on Friday afternoon.
“I think tirzepatide could be the great new thing, but I think we need to know a little bit more. Weight loss seems to be better than with glucagon-like peptide-1 (GLP-1) receptor agonists. Renal outcomes are important. Next will be to see if it has cardiovascular benefit. It makes one think about its use versus GLP-1 agonists,” Dr. Gabbay said.
Managing type 2 diabetes: Shifting paradigms
With the emergence of tirzepatide and other pharmacologic agents with benefits beyond glucose lowering, there has been much discussion in recent years about alternatives to the current metformin monotherapy first, stepwise approach to managing type 2 diabetes.
As has been done previously, on Monday afternoon, there will be a joint ADA/European Association for the Study of Diabetes (EASD) session during which a draft of the latest update will be presented on the management of hyperglycemia in type 2 diabetes. The final version will be presented at the EASD meeting in September.
While it won’t include tirzepatide, as the drug is not yet approved in Europe, there will be discussion about the role of weight loss goals in type 2 diabetes management, Dr. Gabbay said.
The concept of a 15% weight loss as a primary treatment goal of type 2 diabetes management is a new focus, initiated at the EASD 2021 annual meeting and published in The Lancet.
“With tirzepatide becoming available, there’s the opportunity for more significant weight loss. So, there’s been this debate, starting with the somewhat controversial opinion piece in Lancet ... Maybe it was stating things a bit too far but it certainly got everyone in the field thinking. You’ll see that come up in lots of places at this meeting,” Dr. Gabbay said.
Indeed, those sessions include a Sunday morning symposium titled: “Obesity Management as a Primary Treatment Goal for Type 2 Diabetes – It’s Time for a Paradigm Shift,” in which speakers will address both lifestyle and pharmacologic intervention. On Saturday afternoon, two speakers will debate the question: “Weighing the Evidence – Should Obesity Be the Primary Target of Treatment in Type 2 Diabetes?” Yet another session on Sunday afternoon, will cover “Incorporating Weight Management Strategies for Obesity Into Type 2 Diabetes Care – Medical Management and Surgery.”
From weight loss to type 2 diabetes ‘remission’?
Related to the issue of weight loss as first-line therapy is the concept of type 2 diabetes “remission.” “There is a school of thought that says early in the course of disease we probably want to be a lot more aggressive because there’s a greater chance of putting someone into remission,” Dr. Gabbay noted. “The opportunities for remission after someone has had diabetes for a number of years are relatively low.”
In September 2021, ADA, along with EASD, the Endocrine Society, and Diabetes UK, published a joint consensus statement aiming to standardize use of the term “remission” in type 2 diabetes.
At the ADA meeting, a symposium on Monday afternoon, titled, “Definition and Interpretation of Remission in Type 2 Diabetes,” will cover lifestyle, pharmacotherapy, and metabolic surgery approaches. One noteworthy talk in that session will address the question: “Can Type 2 Diabetes Remission Be Diagnosed While Glucose-Lowering Drugs Are Being Used?”
Asked how all of this – tirzepatide, weight loss, and “remission” – might play out clinically, Dr. Dabelea replied: “We are still debating the strategy. That’s why we’re having the scientific talks.
“I think they will be very interesting and very well-attended, but there isn’t a strategy yet ... The important thing is we have these ‘miracle drugs,’ if you want, and once we’ve learned all we need to know about how they act and who we should target, perhaps next year we can talk about a strategy.”
Type 1 diabetes: Progress in preventing, treating, and ... curing?
Type 1 diabetes also will be well represented at the conference, with topics covering prevention, treatment, and progress toward a cure. On Saturday afternoon, a symposium will cover data from a trial of low-dose IL-2 in people with recently diagnosed type 1 diabetes, while a Friday afternoon symposium will address “Emerging Approaches to Beta Cell Replacement.”
On Saturday afternoon, a symposium will provide an update on islet cell transplantation, including immune tolerance strategies, while an oral abstract session will cover “Clinical Outcomes in Islet and Pancreas Transplantation.” And on Monday afternoon, yet another symposium will examine “Emerging Data on Therapies to Treat the Underlying Autoimmunity in Type 1 Diabetes.”
As usual, there will also be numerous presentations on the latest in diabetes technology. Particularly noteworthy among these will be an oral abstract presentation on Monday afternoon, “The CREATE Trial: Randomized Clinical Trial Comparing Open-Source Automated Insulin Delivery With Sensor Augmented Pump Therapy in Type 1 Diabetes,” and results from the insulin-only “bionic pancreas” pivotal randomized clinical trial on Friday afternoon.
“I’m happy to see a plethora of studies in type 1 diabetes. Dr. Dabelea said. “As with tirzepatide in type 2 diabetes, we are witnessing discoveries and we need to have some time to really understand the results, understand who are they targeting, who is going to benefit, and then move into a strategy.”
However, she added, in both type 1 and type 2 diabetes, “we’re seeing these disparities [where] these novel technologies and therapeutics are not getting to the people who need them most,” which brings up another major meeting theme, health disparities.
Overlapping themes: Disparities, mental health, and COVID-19
The topics of health disparities in diabetes prevention, management, and care and promoting health equity, as well as the impact of COVID-19, are “certainly timely this year,” said Dr. Dabelea.
At least eight meeting sessions will address various aspects of disparity, including a Friday afternoon symposium, “Race, Racism, and Diabetes Research,” a Saturday morning oral presentation on “Mitigating Disparities in the Screening and Diagnosis of Diabetes,” and on Monday morning, the symposium “Disparities in the Use of Diabetes Medications and Technologies.”
A related topic, insulin access, will be addressed in a Friday morning “mini-symposium” that will cover the issue from U.S. and international perspectives, including humanitarian crisis situations. Related to that, on Sunday afternoon a panel will discuss the Ukraine situation specifically.
Regarding mental health, one noteworthy session is a symposium on Saturday afternoon: “Suicide and Self-Injury – Unveiling and Addressing the Hidden Nightmare in Diabetes.”
“It’s an underrecognized problem and we’ve devoted a symposium to really drill into it. I think that’s going to be an important story for all of us to think about,” Dr. Gabbay said.
Another mental health session on Saturday afternoon will examine “Stigma in Diabetes Care – Evidence and Solutions.” Dr. Dabelea noted, “Mental health is a rising concern in the United States, especially in people with chronic diseases in the wake of the pandemic ... Of course there’s overlap in mechanisms in type 1 and type 2, but I think there are also distinct pathways.”
COVID-19 will be somewhat less of a focus than in the past 2 years, but there will certainly still be plenty about it. A Friday morning mini-symposium will cover new findings in pathophysiology, another session on Monday afternoon will look at the impact of the pandemic on hypoglycemia risk, and COVID-19 will be the subject of several late-breaking posters on Sunday afternoon. One in particular will report a review of diabetes as a risk factor for long COVID.
Celebrating in person in the Big Easy
But unlike the past 2 years, COVID-19 has not kept ADA from meeting in person in 2022. “I think it’s going to be amazing ... We’re so excited to be in person and interacting,” Dr. Gabbay said.
He observed that virtual meetings – as ADA and most other medical societies have been forced into for the past 2 years during the pandemic – fail to capture “how science is advanced by the casual conversations in the hallway and collaborations and new ideas. It’s really this incredible incubator. For me, that’s the most exciting part.”
The location, New Orleans, also factors into his excitement: “What a great place to do this. It’s conducive to celebrating. It’s been a long couple of years.”
A version of this article first appeared on Medscape.com.
The full results on Lilly’s tirzepatide for obesity will likely dominate the headlines from the annual scientific sessions of the American Diabetes Association, but the conference program is jam-packed with new findings – and new paradigms – in both type 1 and type 2 diabetes management and prevention.
Taking place June 3-7 both in person – for the first time in 3 years – in New Orleans, and virtually, the “hybrid” meeting is mandating COVID-19 vaccination and mask wearing for all on-site attendees.
A major topic will be new findings and thinking in the treatment of type 2 diabetes, including the new twincretin tirzepatide, as well as discussions about the role of weight loss and the concept of “remission.” In type 1 diabetes, sessions will examine intervention trials to prevent progression, progress in islet transplantation, and the latest findings in diabetes technology.
Other key conference themes include the often interrelated topics of disparities, mental health, and COVID-19.
“I think that the scientific planning committee has put together a really outstanding program this year, covering the entire spectrum of diabetes care and research and translation for both type 1 and type 2 diabetes,” Scientific Planning Committee Chair Dana Dabelea, MD, PhD, professor of epidemiology and pediatrics at the University of Colorado Anschutz Medical Campus, Aurora, told this news organization.
Tirzepatide: The next big thing?
The presentation likely to generate the most buzz will take place Saturday morning, with the full detailed results from Lilly’s phase 3 SURMOUNT-1 trial of its dual-incretin tirzepatide for weight loss in people with obesity or overweight with at least one comorbidity but not diabetes.
Top-line results released by Lilly in April 2022 showed that the drug induced weight loss of up to 22%. Tirzepatide was approved May 13 by the Food and Drug Administration for type 2 diabetes under the brand name Mounjaro. It is not approved for weight loss.
“Certainly the general public will latch on to this idea that there is a drug they can lose 22% of their weight on,” Robert A. Gabbay, MD, PhD, ADA chief science and medical officer, told this news organization. “It’s hard to comment on a press release, so that’s why this presentation is going to be key.”
Another tirzepatide analysis, this one comparing its use to insulin glargine on kidney outcomes in participants with diabetes in the pivotal SURPASS-4 study, will be presented as an ADA Presidents’ Select Abstract on Friday afternoon.
“I think tirzepatide could be the great new thing, but I think we need to know a little bit more. Weight loss seems to be better than with glucagon-like peptide-1 (GLP-1) receptor agonists. Renal outcomes are important. Next will be to see if it has cardiovascular benefit. It makes one think about its use versus GLP-1 agonists,” Dr. Gabbay said.
Managing type 2 diabetes: Shifting paradigms
With the emergence of tirzepatide and other pharmacologic agents with benefits beyond glucose lowering, there has been much discussion in recent years about alternatives to the current metformin monotherapy first, stepwise approach to managing type 2 diabetes.
As has been done previously, on Monday afternoon, there will be a joint ADA/European Association for the Study of Diabetes (EASD) session during which a draft of the latest update will be presented on the management of hyperglycemia in type 2 diabetes. The final version will be presented at the EASD meeting in September.
While it won’t include tirzepatide, as the drug is not yet approved in Europe, there will be discussion about the role of weight loss goals in type 2 diabetes management, Dr. Gabbay said.
The concept of a 15% weight loss as a primary treatment goal of type 2 diabetes management is a new focus, initiated at the EASD 2021 annual meeting and published in The Lancet.
“With tirzepatide becoming available, there’s the opportunity for more significant weight loss. So, there’s been this debate, starting with the somewhat controversial opinion piece in Lancet ... Maybe it was stating things a bit too far but it certainly got everyone in the field thinking. You’ll see that come up in lots of places at this meeting,” Dr. Gabbay said.
Indeed, those sessions include a Sunday morning symposium titled: “Obesity Management as a Primary Treatment Goal for Type 2 Diabetes – It’s Time for a Paradigm Shift,” in which speakers will address both lifestyle and pharmacologic intervention. On Saturday afternoon, two speakers will debate the question: “Weighing the Evidence – Should Obesity Be the Primary Target of Treatment in Type 2 Diabetes?” Yet another session on Sunday afternoon, will cover “Incorporating Weight Management Strategies for Obesity Into Type 2 Diabetes Care – Medical Management and Surgery.”
From weight loss to type 2 diabetes ‘remission’?
Related to the issue of weight loss as first-line therapy is the concept of type 2 diabetes “remission.” “There is a school of thought that says early in the course of disease we probably want to be a lot more aggressive because there’s a greater chance of putting someone into remission,” Dr. Gabbay noted. “The opportunities for remission after someone has had diabetes for a number of years are relatively low.”
In September 2021, ADA, along with EASD, the Endocrine Society, and Diabetes UK, published a joint consensus statement aiming to standardize use of the term “remission” in type 2 diabetes.
At the ADA meeting, a symposium on Monday afternoon, titled, “Definition and Interpretation of Remission in Type 2 Diabetes,” will cover lifestyle, pharmacotherapy, and metabolic surgery approaches. One noteworthy talk in that session will address the question: “Can Type 2 Diabetes Remission Be Diagnosed While Glucose-Lowering Drugs Are Being Used?”
Asked how all of this – tirzepatide, weight loss, and “remission” – might play out clinically, Dr. Dabelea replied: “We are still debating the strategy. That’s why we’re having the scientific talks.
“I think they will be very interesting and very well-attended, but there isn’t a strategy yet ... The important thing is we have these ‘miracle drugs,’ if you want, and once we’ve learned all we need to know about how they act and who we should target, perhaps next year we can talk about a strategy.”
Type 1 diabetes: Progress in preventing, treating, and ... curing?
Type 1 diabetes also will be well represented at the conference, with topics covering prevention, treatment, and progress toward a cure. On Saturday afternoon, a symposium will cover data from a trial of low-dose IL-2 in people with recently diagnosed type 1 diabetes, while a Friday afternoon symposium will address “Emerging Approaches to Beta Cell Replacement.”
On Saturday afternoon, a symposium will provide an update on islet cell transplantation, including immune tolerance strategies, while an oral abstract session will cover “Clinical Outcomes in Islet and Pancreas Transplantation.” And on Monday afternoon, yet another symposium will examine “Emerging Data on Therapies to Treat the Underlying Autoimmunity in Type 1 Diabetes.”
As usual, there will also be numerous presentations on the latest in diabetes technology. Particularly noteworthy among these will be an oral abstract presentation on Monday afternoon, “The CREATE Trial: Randomized Clinical Trial Comparing Open-Source Automated Insulin Delivery With Sensor Augmented Pump Therapy in Type 1 Diabetes,” and results from the insulin-only “bionic pancreas” pivotal randomized clinical trial on Friday afternoon.
“I’m happy to see a plethora of studies in type 1 diabetes. Dr. Dabelea said. “As with tirzepatide in type 2 diabetes, we are witnessing discoveries and we need to have some time to really understand the results, understand who are they targeting, who is going to benefit, and then move into a strategy.”
However, she added, in both type 1 and type 2 diabetes, “we’re seeing these disparities [where] these novel technologies and therapeutics are not getting to the people who need them most,” which brings up another major meeting theme, health disparities.
Overlapping themes: Disparities, mental health, and COVID-19
The topics of health disparities in diabetes prevention, management, and care and promoting health equity, as well as the impact of COVID-19, are “certainly timely this year,” said Dr. Dabelea.
At least eight meeting sessions will address various aspects of disparity, including a Friday afternoon symposium, “Race, Racism, and Diabetes Research,” a Saturday morning oral presentation on “Mitigating Disparities in the Screening and Diagnosis of Diabetes,” and on Monday morning, the symposium “Disparities in the Use of Diabetes Medications and Technologies.”
A related topic, insulin access, will be addressed in a Friday morning “mini-symposium” that will cover the issue from U.S. and international perspectives, including humanitarian crisis situations. Related to that, on Sunday afternoon a panel will discuss the Ukraine situation specifically.
Regarding mental health, one noteworthy session is a symposium on Saturday afternoon: “Suicide and Self-Injury – Unveiling and Addressing the Hidden Nightmare in Diabetes.”
“It’s an underrecognized problem and we’ve devoted a symposium to really drill into it. I think that’s going to be an important story for all of us to think about,” Dr. Gabbay said.
Another mental health session on Saturday afternoon will examine “Stigma in Diabetes Care – Evidence and Solutions.” Dr. Dabelea noted, “Mental health is a rising concern in the United States, especially in people with chronic diseases in the wake of the pandemic ... Of course there’s overlap in mechanisms in type 1 and type 2, but I think there are also distinct pathways.”
COVID-19 will be somewhat less of a focus than in the past 2 years, but there will certainly still be plenty about it. A Friday morning mini-symposium will cover new findings in pathophysiology, another session on Monday afternoon will look at the impact of the pandemic on hypoglycemia risk, and COVID-19 will be the subject of several late-breaking posters on Sunday afternoon. One in particular will report a review of diabetes as a risk factor for long COVID.
Celebrating in person in the Big Easy
But unlike the past 2 years, COVID-19 has not kept ADA from meeting in person in 2022. “I think it’s going to be amazing ... We’re so excited to be in person and interacting,” Dr. Gabbay said.
He observed that virtual meetings – as ADA and most other medical societies have been forced into for the past 2 years during the pandemic – fail to capture “how science is advanced by the casual conversations in the hallway and collaborations and new ideas. It’s really this incredible incubator. For me, that’s the most exciting part.”
The location, New Orleans, also factors into his excitement: “What a great place to do this. It’s conducive to celebrating. It’s been a long couple of years.”
A version of this article first appeared on Medscape.com.
The full results on Lilly’s tirzepatide for obesity will likely dominate the headlines from the annual scientific sessions of the American Diabetes Association, but the conference program is jam-packed with new findings – and new paradigms – in both type 1 and type 2 diabetes management and prevention.
Taking place June 3-7 both in person – for the first time in 3 years – in New Orleans, and virtually, the “hybrid” meeting is mandating COVID-19 vaccination and mask wearing for all on-site attendees.
A major topic will be new findings and thinking in the treatment of type 2 diabetes, including the new twincretin tirzepatide, as well as discussions about the role of weight loss and the concept of “remission.” In type 1 diabetes, sessions will examine intervention trials to prevent progression, progress in islet transplantation, and the latest findings in diabetes technology.
Other key conference themes include the often interrelated topics of disparities, mental health, and COVID-19.
“I think that the scientific planning committee has put together a really outstanding program this year, covering the entire spectrum of diabetes care and research and translation for both type 1 and type 2 diabetes,” Scientific Planning Committee Chair Dana Dabelea, MD, PhD, professor of epidemiology and pediatrics at the University of Colorado Anschutz Medical Campus, Aurora, told this news organization.
Tirzepatide: The next big thing?
The presentation likely to generate the most buzz will take place Saturday morning, with the full detailed results from Lilly’s phase 3 SURMOUNT-1 trial of its dual-incretin tirzepatide for weight loss in people with obesity or overweight with at least one comorbidity but not diabetes.
Top-line results released by Lilly in April 2022 showed that the drug induced weight loss of up to 22%. Tirzepatide was approved May 13 by the Food and Drug Administration for type 2 diabetes under the brand name Mounjaro. It is not approved for weight loss.
“Certainly the general public will latch on to this idea that there is a drug they can lose 22% of their weight on,” Robert A. Gabbay, MD, PhD, ADA chief science and medical officer, told this news organization. “It’s hard to comment on a press release, so that’s why this presentation is going to be key.”
Another tirzepatide analysis, this one comparing its use to insulin glargine on kidney outcomes in participants with diabetes in the pivotal SURPASS-4 study, will be presented as an ADA Presidents’ Select Abstract on Friday afternoon.
“I think tirzepatide could be the great new thing, but I think we need to know a little bit more. Weight loss seems to be better than with glucagon-like peptide-1 (GLP-1) receptor agonists. Renal outcomes are important. Next will be to see if it has cardiovascular benefit. It makes one think about its use versus GLP-1 agonists,” Dr. Gabbay said.
Managing type 2 diabetes: Shifting paradigms
With the emergence of tirzepatide and other pharmacologic agents with benefits beyond glucose lowering, there has been much discussion in recent years about alternatives to the current metformin monotherapy first, stepwise approach to managing type 2 diabetes.
As has been done previously, on Monday afternoon, there will be a joint ADA/European Association for the Study of Diabetes (EASD) session during which a draft of the latest update will be presented on the management of hyperglycemia in type 2 diabetes. The final version will be presented at the EASD meeting in September.
While it won’t include tirzepatide, as the drug is not yet approved in Europe, there will be discussion about the role of weight loss goals in type 2 diabetes management, Dr. Gabbay said.
The concept of a 15% weight loss as a primary treatment goal of type 2 diabetes management is a new focus, initiated at the EASD 2021 annual meeting and published in The Lancet.
“With tirzepatide becoming available, there’s the opportunity for more significant weight loss. So, there’s been this debate, starting with the somewhat controversial opinion piece in Lancet ... Maybe it was stating things a bit too far but it certainly got everyone in the field thinking. You’ll see that come up in lots of places at this meeting,” Dr. Gabbay said.
Indeed, those sessions include a Sunday morning symposium titled: “Obesity Management as a Primary Treatment Goal for Type 2 Diabetes – It’s Time for a Paradigm Shift,” in which speakers will address both lifestyle and pharmacologic intervention. On Saturday afternoon, two speakers will debate the question: “Weighing the Evidence – Should Obesity Be the Primary Target of Treatment in Type 2 Diabetes?” Yet another session on Sunday afternoon, will cover “Incorporating Weight Management Strategies for Obesity Into Type 2 Diabetes Care – Medical Management and Surgery.”
From weight loss to type 2 diabetes ‘remission’?
Related to the issue of weight loss as first-line therapy is the concept of type 2 diabetes “remission.” “There is a school of thought that says early in the course of disease we probably want to be a lot more aggressive because there’s a greater chance of putting someone into remission,” Dr. Gabbay noted. “The opportunities for remission after someone has had diabetes for a number of years are relatively low.”
In September 2021, ADA, along with EASD, the Endocrine Society, and Diabetes UK, published a joint consensus statement aiming to standardize use of the term “remission” in type 2 diabetes.
At the ADA meeting, a symposium on Monday afternoon, titled, “Definition and Interpretation of Remission in Type 2 Diabetes,” will cover lifestyle, pharmacotherapy, and metabolic surgery approaches. One noteworthy talk in that session will address the question: “Can Type 2 Diabetes Remission Be Diagnosed While Glucose-Lowering Drugs Are Being Used?”
Asked how all of this – tirzepatide, weight loss, and “remission” – might play out clinically, Dr. Dabelea replied: “We are still debating the strategy. That’s why we’re having the scientific talks.
“I think they will be very interesting and very well-attended, but there isn’t a strategy yet ... The important thing is we have these ‘miracle drugs,’ if you want, and once we’ve learned all we need to know about how they act and who we should target, perhaps next year we can talk about a strategy.”
Type 1 diabetes: Progress in preventing, treating, and ... curing?
Type 1 diabetes also will be well represented at the conference, with topics covering prevention, treatment, and progress toward a cure. On Saturday afternoon, a symposium will cover data from a trial of low-dose IL-2 in people with recently diagnosed type 1 diabetes, while a Friday afternoon symposium will address “Emerging Approaches to Beta Cell Replacement.”
On Saturday afternoon, a symposium will provide an update on islet cell transplantation, including immune tolerance strategies, while an oral abstract session will cover “Clinical Outcomes in Islet and Pancreas Transplantation.” And on Monday afternoon, yet another symposium will examine “Emerging Data on Therapies to Treat the Underlying Autoimmunity in Type 1 Diabetes.”
As usual, there will also be numerous presentations on the latest in diabetes technology. Particularly noteworthy among these will be an oral abstract presentation on Monday afternoon, “The CREATE Trial: Randomized Clinical Trial Comparing Open-Source Automated Insulin Delivery With Sensor Augmented Pump Therapy in Type 1 Diabetes,” and results from the insulin-only “bionic pancreas” pivotal randomized clinical trial on Friday afternoon.
“I’m happy to see a plethora of studies in type 1 diabetes. Dr. Dabelea said. “As with tirzepatide in type 2 diabetes, we are witnessing discoveries and we need to have some time to really understand the results, understand who are they targeting, who is going to benefit, and then move into a strategy.”
However, she added, in both type 1 and type 2 diabetes, “we’re seeing these disparities [where] these novel technologies and therapeutics are not getting to the people who need them most,” which brings up another major meeting theme, health disparities.
Overlapping themes: Disparities, mental health, and COVID-19
The topics of health disparities in diabetes prevention, management, and care and promoting health equity, as well as the impact of COVID-19, are “certainly timely this year,” said Dr. Dabelea.
At least eight meeting sessions will address various aspects of disparity, including a Friday afternoon symposium, “Race, Racism, and Diabetes Research,” a Saturday morning oral presentation on “Mitigating Disparities in the Screening and Diagnosis of Diabetes,” and on Monday morning, the symposium “Disparities in the Use of Diabetes Medications and Technologies.”
A related topic, insulin access, will be addressed in a Friday morning “mini-symposium” that will cover the issue from U.S. and international perspectives, including humanitarian crisis situations. Related to that, on Sunday afternoon a panel will discuss the Ukraine situation specifically.
Regarding mental health, one noteworthy session is a symposium on Saturday afternoon: “Suicide and Self-Injury – Unveiling and Addressing the Hidden Nightmare in Diabetes.”
“It’s an underrecognized problem and we’ve devoted a symposium to really drill into it. I think that’s going to be an important story for all of us to think about,” Dr. Gabbay said.
Another mental health session on Saturday afternoon will examine “Stigma in Diabetes Care – Evidence and Solutions.” Dr. Dabelea noted, “Mental health is a rising concern in the United States, especially in people with chronic diseases in the wake of the pandemic ... Of course there’s overlap in mechanisms in type 1 and type 2, but I think there are also distinct pathways.”
COVID-19 will be somewhat less of a focus than in the past 2 years, but there will certainly still be plenty about it. A Friday morning mini-symposium will cover new findings in pathophysiology, another session on Monday afternoon will look at the impact of the pandemic on hypoglycemia risk, and COVID-19 will be the subject of several late-breaking posters on Sunday afternoon. One in particular will report a review of diabetes as a risk factor for long COVID.
Celebrating in person in the Big Easy
But unlike the past 2 years, COVID-19 has not kept ADA from meeting in person in 2022. “I think it’s going to be amazing ... We’re so excited to be in person and interacting,” Dr. Gabbay said.
He observed that virtual meetings – as ADA and most other medical societies have been forced into for the past 2 years during the pandemic – fail to capture “how science is advanced by the casual conversations in the hallway and collaborations and new ideas. It’s really this incredible incubator. For me, that’s the most exciting part.”
The location, New Orleans, also factors into his excitement: “What a great place to do this. It’s conducive to celebrating. It’s been a long couple of years.”
A version of this article first appeared on Medscape.com.
FDA clears Abbott Freestyle Libre 3 glucose sensor
The Food and Drug Administration has cleared Abbot’s Freestyle Libre 3 system for use by people aged 4 years and older with diabetes.
The new system was cleared for use for both iOS- and Android-compatible mobile apps, enabling real-time glucose readings in contrast to the “intermittently scanned” capability of prior Libre versions. The Libre 3 allows for optional alarms and notifications of urgent low or high glucose levels, as well as remote monitoring by health care professionals or the patient’s family members and/or friends.
The FreeStyle Libre 3 was granted a CE Mark in Europe in October 2020.
Smaller, thinner, and better integration
According to Abbott, the Libre 3 is the first continuous glucose monitoring (CGM) system to show a mean absolute relative difference (MARD) of less than 8% compared with a gold-standard glucose measure. The average Libre 3 MARD is 7.9%, compared with 9.3% for the Libre 2. The Libre 3 is also the “smallest and thinnest” CGM, roughly the size of two stacked U.S. pennies, worn on the upper arm.
And, the company said, the Libre 3 has a Bluetooth integration of up to 33 feet, a range 50% further than other CGMs.
This version follows the FreeStyle Libre 2, approved in June 2020, and its compatible iPhone app, approved in August 2021.
The Libre 3 will be priced the same as the Libre 2, at about one-third the cost of other CGM systems. However, it is not currently eligible for Medicare reimbursement. Medicaid eligibility may vary by state.
“I applaud Abbott for making their CGM system the most affordable and addressing disparities in care so patients living with diabetes can avoid complications and optimize their quality of life,” Eugene E. Wright Jr., MD, of Duke University, Durham, N.C., said in an Abbott statement.
“I have seen real-world evidence that diabetes technologies like CGMs have helped my patients safely achieve improved glycemic control,” he said.
The FreeStyle Libre 3 sensor will be available at participating pharmacies later this year.
A version of this article first appeared on Medscape.com.
The Food and Drug Administration has cleared Abbot’s Freestyle Libre 3 system for use by people aged 4 years and older with diabetes.
The new system was cleared for use for both iOS- and Android-compatible mobile apps, enabling real-time glucose readings in contrast to the “intermittently scanned” capability of prior Libre versions. The Libre 3 allows for optional alarms and notifications of urgent low or high glucose levels, as well as remote monitoring by health care professionals or the patient’s family members and/or friends.
The FreeStyle Libre 3 was granted a CE Mark in Europe in October 2020.
Smaller, thinner, and better integration
According to Abbott, the Libre 3 is the first continuous glucose monitoring (CGM) system to show a mean absolute relative difference (MARD) of less than 8% compared with a gold-standard glucose measure. The average Libre 3 MARD is 7.9%, compared with 9.3% for the Libre 2. The Libre 3 is also the “smallest and thinnest” CGM, roughly the size of two stacked U.S. pennies, worn on the upper arm.
And, the company said, the Libre 3 has a Bluetooth integration of up to 33 feet, a range 50% further than other CGMs.
This version follows the FreeStyle Libre 2, approved in June 2020, and its compatible iPhone app, approved in August 2021.
The Libre 3 will be priced the same as the Libre 2, at about one-third the cost of other CGM systems. However, it is not currently eligible for Medicare reimbursement. Medicaid eligibility may vary by state.
“I applaud Abbott for making their CGM system the most affordable and addressing disparities in care so patients living with diabetes can avoid complications and optimize their quality of life,” Eugene E. Wright Jr., MD, of Duke University, Durham, N.C., said in an Abbott statement.
“I have seen real-world evidence that diabetes technologies like CGMs have helped my patients safely achieve improved glycemic control,” he said.
The FreeStyle Libre 3 sensor will be available at participating pharmacies later this year.
A version of this article first appeared on Medscape.com.
The Food and Drug Administration has cleared Abbot’s Freestyle Libre 3 system for use by people aged 4 years and older with diabetes.
The new system was cleared for use for both iOS- and Android-compatible mobile apps, enabling real-time glucose readings in contrast to the “intermittently scanned” capability of prior Libre versions. The Libre 3 allows for optional alarms and notifications of urgent low or high glucose levels, as well as remote monitoring by health care professionals or the patient’s family members and/or friends.
The FreeStyle Libre 3 was granted a CE Mark in Europe in October 2020.
Smaller, thinner, and better integration
According to Abbott, the Libre 3 is the first continuous glucose monitoring (CGM) system to show a mean absolute relative difference (MARD) of less than 8% compared with a gold-standard glucose measure. The average Libre 3 MARD is 7.9%, compared with 9.3% for the Libre 2. The Libre 3 is also the “smallest and thinnest” CGM, roughly the size of two stacked U.S. pennies, worn on the upper arm.
And, the company said, the Libre 3 has a Bluetooth integration of up to 33 feet, a range 50% further than other CGMs.
This version follows the FreeStyle Libre 2, approved in June 2020, and its compatible iPhone app, approved in August 2021.
The Libre 3 will be priced the same as the Libre 2, at about one-third the cost of other CGM systems. However, it is not currently eligible for Medicare reimbursement. Medicaid eligibility may vary by state.
“I applaud Abbott for making their CGM system the most affordable and addressing disparities in care so patients living with diabetes can avoid complications and optimize their quality of life,” Eugene E. Wright Jr., MD, of Duke University, Durham, N.C., said in an Abbott statement.
“I have seen real-world evidence that diabetes technologies like CGMs have helped my patients safely achieve improved glycemic control,” he said.
The FreeStyle Libre 3 sensor will be available at participating pharmacies later this year.
A version of this article first appeared on Medscape.com.