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How safe is a drug holiday from bisphosphonates for osteoporosis?
Researchers found a small but greater risk of a hip fracture after 2 years of taking a “drug holiday” – stopping therapy – after long-term (≥3-year) use of one bisphosphonate, risedronate, versus another, alendronate.
The risk of a hip fracture after stopping either of these oral bisphosphonate osteoporosis drugs was similar until 2 years, suggesting that patients who take a drug holiday from risedronate should be revaluated before 2 years.
These top-line findings from a propensity-matched cohort study of older patients in Ontario, Canada, were reported at the annual American Society of Bone and Mineral Research (ASBMR) last fall.
The full study, led by Kaleen N. Hayes, PharmD, PhD, Brown University School of Public Health, Providence, R.I., was published online in the Annals of Internal Medicine.
“We emphasize that our results do not indicate that alendronate therapy should be preferred over risedronate therapy,” the researchers stress, as several real-world studies found a similar risk of fractures while patients were receiving either drug.
“The decision to initiate alendronate or risedronate therapy [the two most commonly prescribed bisphosphonates] is driven by the prescriber,” they note, adding that some patients may prefer risedronate because it is available as a monthly dose or a weekly delayed-release formula that does not require fasting.
“We found little difference in the association between risedronate versus alendronate drug holidays and hip fractures until approximately 2 years of not receiving therapy,” Dr. Hayes and colleagues summarize.
Over 3 years, risedronate drug holidays were associated with an 18% relative and 0.6% absolute increased risk for hip fracture compared with alendronate drug holidays.
“To further inform clinical decision-making on drug holidays,” they conclude, “future research should examine when to start and restart osteoporosis therapy on the basis of initial length and type of treatment, patient characteristics, and relative risk for hip fractures versus [atypical femoral fracture].”
Hip fracture risk with risedronate vs. alendronate drug holiday
Long-term bisphosphonate use is associated with a rare risk of osteonecrosis of the jaw or atypical femoral fractures. At the same time, bisphosphonates continue to have a therapeutic effect after therapy is discontinued.
Guidelines recommend that patients at low risk of fracture should therefore have a “drug holiday” after 3 to 5 years of bisphosphonate use and be reassessed 2 to 3 years later, largely based on the Fracture Intervention Trial Long-Term Extension (FLEX) study of alendronate. But risedronate has a shorter half-life, so it may provide shorter residual fracture protection.
Using Ontario administrative data, Dr. Hayes and associates identified more than 60,000 patients who were over aged 65, had received at least 3 years of continuous alendronate or risedronate, and had a subsequent 3-year drug holiday between 2000 and 2020.
They excluded patients who had a fracture or entered a nursing home within 120 days of starting a drug holiday who may have stopped the bisphosphonate due to declining health rather than a drug holiday.
Roughly half (55%) had been taking risedronate and 45% had been taking alendronate.
Using propensity scores, the researchers matched 25,077 patients who had been taking risedronate with an equal number who had been taking alendronate.
Most of the patients were women (82%) and were White.
They started the drug holiday when they were on average 81 years old, after taking the bisphosphonate for 5.9 years on average.
During the 3-year drug holiday, 915 of the 50,154 patients had hip fractures.
This was equivalent to 12.4 hip fractures per 1,000 patients per year during a risedronate holiday and 10.6 hip fractures per 1,000 patients per year during an alendronate holiday (hazard ratio, 1.18).
The risk of hip fracture was not significantly higher at 1 year (HR, 1.03) or at 2 years of a risedronate holiday versus an alendronate holiday (HR, 1.14).
However, the risk of a hip fracture was significantly higher at 2 to 3 years of a risedronate holiday than after an alendronate holiday (HR, 1.34).
There was no significant difference in the risk of any osteoporotic fracture overall (including hip, vertebrae, pelvis, ribs, forearm), however, during a 3-year risedronate versus alendronate drug holiday (HR, 1.07).
The research was supported by the Canadian Institutes of Health Research and Institute for Clinical Evaluative Sciences. Dr. Hayes was supported by a CIHR doctoral research award. The authors have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Researchers found a small but greater risk of a hip fracture after 2 years of taking a “drug holiday” – stopping therapy – after long-term (≥3-year) use of one bisphosphonate, risedronate, versus another, alendronate.
The risk of a hip fracture after stopping either of these oral bisphosphonate osteoporosis drugs was similar until 2 years, suggesting that patients who take a drug holiday from risedronate should be revaluated before 2 years.
These top-line findings from a propensity-matched cohort study of older patients in Ontario, Canada, were reported at the annual American Society of Bone and Mineral Research (ASBMR) last fall.
The full study, led by Kaleen N. Hayes, PharmD, PhD, Brown University School of Public Health, Providence, R.I., was published online in the Annals of Internal Medicine.
“We emphasize that our results do not indicate that alendronate therapy should be preferred over risedronate therapy,” the researchers stress, as several real-world studies found a similar risk of fractures while patients were receiving either drug.
“The decision to initiate alendronate or risedronate therapy [the two most commonly prescribed bisphosphonates] is driven by the prescriber,” they note, adding that some patients may prefer risedronate because it is available as a monthly dose or a weekly delayed-release formula that does not require fasting.
“We found little difference in the association between risedronate versus alendronate drug holidays and hip fractures until approximately 2 years of not receiving therapy,” Dr. Hayes and colleagues summarize.
Over 3 years, risedronate drug holidays were associated with an 18% relative and 0.6% absolute increased risk for hip fracture compared with alendronate drug holidays.
“To further inform clinical decision-making on drug holidays,” they conclude, “future research should examine when to start and restart osteoporosis therapy on the basis of initial length and type of treatment, patient characteristics, and relative risk for hip fractures versus [atypical femoral fracture].”
Hip fracture risk with risedronate vs. alendronate drug holiday
Long-term bisphosphonate use is associated with a rare risk of osteonecrosis of the jaw or atypical femoral fractures. At the same time, bisphosphonates continue to have a therapeutic effect after therapy is discontinued.
Guidelines recommend that patients at low risk of fracture should therefore have a “drug holiday” after 3 to 5 years of bisphosphonate use and be reassessed 2 to 3 years later, largely based on the Fracture Intervention Trial Long-Term Extension (FLEX) study of alendronate. But risedronate has a shorter half-life, so it may provide shorter residual fracture protection.
Using Ontario administrative data, Dr. Hayes and associates identified more than 60,000 patients who were over aged 65, had received at least 3 years of continuous alendronate or risedronate, and had a subsequent 3-year drug holiday between 2000 and 2020.
They excluded patients who had a fracture or entered a nursing home within 120 days of starting a drug holiday who may have stopped the bisphosphonate due to declining health rather than a drug holiday.
Roughly half (55%) had been taking risedronate and 45% had been taking alendronate.
Using propensity scores, the researchers matched 25,077 patients who had been taking risedronate with an equal number who had been taking alendronate.
Most of the patients were women (82%) and were White.
They started the drug holiday when they were on average 81 years old, after taking the bisphosphonate for 5.9 years on average.
During the 3-year drug holiday, 915 of the 50,154 patients had hip fractures.
This was equivalent to 12.4 hip fractures per 1,000 patients per year during a risedronate holiday and 10.6 hip fractures per 1,000 patients per year during an alendronate holiday (hazard ratio, 1.18).
The risk of hip fracture was not significantly higher at 1 year (HR, 1.03) or at 2 years of a risedronate holiday versus an alendronate holiday (HR, 1.14).
However, the risk of a hip fracture was significantly higher at 2 to 3 years of a risedronate holiday than after an alendronate holiday (HR, 1.34).
There was no significant difference in the risk of any osteoporotic fracture overall (including hip, vertebrae, pelvis, ribs, forearm), however, during a 3-year risedronate versus alendronate drug holiday (HR, 1.07).
The research was supported by the Canadian Institutes of Health Research and Institute for Clinical Evaluative Sciences. Dr. Hayes was supported by a CIHR doctoral research award. The authors have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Researchers found a small but greater risk of a hip fracture after 2 years of taking a “drug holiday” – stopping therapy – after long-term (≥3-year) use of one bisphosphonate, risedronate, versus another, alendronate.
The risk of a hip fracture after stopping either of these oral bisphosphonate osteoporosis drugs was similar until 2 years, suggesting that patients who take a drug holiday from risedronate should be revaluated before 2 years.
These top-line findings from a propensity-matched cohort study of older patients in Ontario, Canada, were reported at the annual American Society of Bone and Mineral Research (ASBMR) last fall.
The full study, led by Kaleen N. Hayes, PharmD, PhD, Brown University School of Public Health, Providence, R.I., was published online in the Annals of Internal Medicine.
“We emphasize that our results do not indicate that alendronate therapy should be preferred over risedronate therapy,” the researchers stress, as several real-world studies found a similar risk of fractures while patients were receiving either drug.
“The decision to initiate alendronate or risedronate therapy [the two most commonly prescribed bisphosphonates] is driven by the prescriber,” they note, adding that some patients may prefer risedronate because it is available as a monthly dose or a weekly delayed-release formula that does not require fasting.
“We found little difference in the association between risedronate versus alendronate drug holidays and hip fractures until approximately 2 years of not receiving therapy,” Dr. Hayes and colleagues summarize.
Over 3 years, risedronate drug holidays were associated with an 18% relative and 0.6% absolute increased risk for hip fracture compared with alendronate drug holidays.
“To further inform clinical decision-making on drug holidays,” they conclude, “future research should examine when to start and restart osteoporosis therapy on the basis of initial length and type of treatment, patient characteristics, and relative risk for hip fractures versus [atypical femoral fracture].”
Hip fracture risk with risedronate vs. alendronate drug holiday
Long-term bisphosphonate use is associated with a rare risk of osteonecrosis of the jaw or atypical femoral fractures. At the same time, bisphosphonates continue to have a therapeutic effect after therapy is discontinued.
Guidelines recommend that patients at low risk of fracture should therefore have a “drug holiday” after 3 to 5 years of bisphosphonate use and be reassessed 2 to 3 years later, largely based on the Fracture Intervention Trial Long-Term Extension (FLEX) study of alendronate. But risedronate has a shorter half-life, so it may provide shorter residual fracture protection.
Using Ontario administrative data, Dr. Hayes and associates identified more than 60,000 patients who were over aged 65, had received at least 3 years of continuous alendronate or risedronate, and had a subsequent 3-year drug holiday between 2000 and 2020.
They excluded patients who had a fracture or entered a nursing home within 120 days of starting a drug holiday who may have stopped the bisphosphonate due to declining health rather than a drug holiday.
Roughly half (55%) had been taking risedronate and 45% had been taking alendronate.
Using propensity scores, the researchers matched 25,077 patients who had been taking risedronate with an equal number who had been taking alendronate.
Most of the patients were women (82%) and were White.
They started the drug holiday when they were on average 81 years old, after taking the bisphosphonate for 5.9 years on average.
During the 3-year drug holiday, 915 of the 50,154 patients had hip fractures.
This was equivalent to 12.4 hip fractures per 1,000 patients per year during a risedronate holiday and 10.6 hip fractures per 1,000 patients per year during an alendronate holiday (hazard ratio, 1.18).
The risk of hip fracture was not significantly higher at 1 year (HR, 1.03) or at 2 years of a risedronate holiday versus an alendronate holiday (HR, 1.14).
However, the risk of a hip fracture was significantly higher at 2 to 3 years of a risedronate holiday than after an alendronate holiday (HR, 1.34).
There was no significant difference in the risk of any osteoporotic fracture overall (including hip, vertebrae, pelvis, ribs, forearm), however, during a 3-year risedronate versus alendronate drug holiday (HR, 1.07).
The research was supported by the Canadian Institutes of Health Research and Institute for Clinical Evaluative Sciences. Dr. Hayes was supported by a CIHR doctoral research award. The authors have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Olive oil intake tied to reduced mortality
Compared with men and women who rarely or never consumed olive oil (the lowest intake), those who consumed greater than 0.5 tablespoon/day or more than 7 g/day (the highest intake) had a 19% lower mortality risk over a 28-year follow-up, starting from an average age of 56 years.
Moreover, compared with those with the lowest olive oil intake, those with the highest intake had a 19% lower cardiovascular disease (CVD) mortality, a 17% lower risk of dying from cancer, a 29% lower risk of dying from neurodegenerative disease, and an 18% lower risk of dying from respiratory disease during follow-up.
The researchers estimate that replacing 10 g/day of margarine, butter, mayonnaise, or dairy fat with the same amount of olive oil is associated with an 8%-34% lower risk of death from various causes.
The study by Marta Guasch-Ferré, PhD, and colleagues was published online Jan. 10 in the Journal of the American College of Cardiology.
Results support plant-based dietary fat recommendations
“Our results support current dietary recommendations to increase the intake of olive oil and other unsaturated vegetable oils in place of other fats to improve overall health and longevity,” the researchers summarize.
However, “I wouldn’t say that olive oil is the only way to help you live longer,” Dr. Guasch-Ferré, a senior research scientist in the department of nutrition, Harvard T.H. Chan School of Public Health, Boston, cautioned in an interview with this news organization.
“Other things are very important, such as not smoking, doing physical activity, etc., but one recommendation could be to try to eat more plant-based food including olive oil and healthy fat,” she added, and to use it for cooking, salad dressing, and baking, and substitute it for saturated fat or animal fat, especially for cooking.
The study suggests that people should “consume a more plant-based diet and prioritize fatty acids such as olive oil because they have a better nutritional composition (high in phenols and antioxidants), instead of using butter or margarines or other animal fats that have been shown to have detrimental effects for health,” she added, which is consistent with recommendations in the Dietary Guidelines for Americans.
“That said,” Dr. Guasch-Ferré summarized, “replication is needed in other cohorts and populations to see if the results are similar.”
In an accompanying editorial, Susanna C. Larsson, PhD, writes that “this was a well-designed study, with long-term follow-up and repeated measurements of dietary intake and other risk factors for diseases.”
“However, the difference in olive oil consumption between those with the highest and those with the lowest/no olive oil consumption was very low (0.5 tablespoon) and a [12%] reduced mortality risk was observed already at a much lower intake (0.5 teaspoon, about 1.5 g/day) of olive oil,” she noted in an email to this news organization.
“It’s a bit hard to believe that such a small amount could have an independent effect on mortality risk,” Dr. Larsson, associate professor of epidemiology at the Karolinska Institutet, Stockholm, cautioned.
Like Dr. Guasch-Ferré, she noted that “just adding one or two teaspoons of olive oil to the diet each day will likely not change the risk of mortality.”
Rather, “people may need to make larger changes in the whole diet, not focus on fat only. An overall healthier diet, rich in nonrefined plant-based foods (vegetables, whole grains, nuts), low/no intake of processed foods, and a switch to healthier fat (eg, olive oil) is needed.”
Importantly, “this study cannot say anything about causality, that is, whether it’s olive oil specifically that reduces mortality risk or if there are many other beneficial factors that act together to reduce mortality rate among those with high olive oil consumption.”
The researchers acknowledge this observational study limitation and that the findings may not be generalizable to other populations.
Novel findings regarding Alzheimer’s and respiratory disease
Dr. Larsson highlights two novel findings of this study.
First, it showed a 27% reduction in risk of dementia-related mortality for those in the highest versus lowest category of olive oil consumption. “Considering the lack of preventive strategies for Alzheimer’s disease and the high morbidity and mortality related to this disease, this finding, if confirmed, is of great public health importance,” she said.
Second, the study reported an inverse association of olive oil consumption with risk of respiratory disease mortality. “Because residual confounding from smoking cannot be ruled out,” Dr. Larsson said, “this finding is tentative and requires confirmation in a study that is less susceptible to confounding, such as a randomized trial.”
And although the current study and previous studies have found that consumption of olive oil may have health benefits, she identified several remaining questions.
“Are the associations causal or spurious?” she noted. Is olive oil consumption protective for certain cardiovascular diseases like stroke or atrial fibrillation only, as has been shown in other studies, or also for other major diseases and causes of death, she added. What is the amount of olive oil required for a protective effect?
Further, is the potential effect related to monounsaturated fatty acids (MUFAs) or phenolic compounds; that is, “is the protective effect confined to polyphenol-rich extra-virgin olive oil or are refined olive oil and other vegetable oils as beneficial? More research is needed to address these questions,” she concludes.
“Further studies are needed,” the researchers agree, “to confirm the association of olive oil consumption with reduced mortality, clarify the mechanisms responsible, and quantify the dose/volume boundaries around this effect.”
Virgin olive oil has more polyphenols
Olive oil, a key component of the Mediterranean diet, is high in MUFAs, especially oleic acid, as well as vitamin E and polyphenols, which contribute to its anti-inflammatory and antioxidant properties, the researchers explain.
Virgin olive oil, produced by mechanically pressing ripe olives, contains multiple bioactive and antioxidant components and has an acidity of less than 1.5%. And extra-virgin olive oil is produced the same way but has a higher quality, more intense taste, and lower acidity (less than 1%).
Refined or processed olive oil contains less phytochemicals, as some are lost during processing; it usually contains more than 80% refined oil, plus virgin oil added back to enhance flavor, and may also be labeled “pure” or “light.” However, refined olive oil “still has a good amount of healthy fatty acids but less bioactive compounds,” Dr. Guasch-Ferré noted.
Until now, no large prospective study has examined the link between olive oil intake and all-cause and cause-specific mortality in a U.S. population, where olive oil consumption is limited, compared with Mediterranean countries.
The researchers identified 60,582 women in the Nurses’ Health Study and 31,801 men in the Health Professionals Follow-up Study who were free of CVD or cancer in 1990, the first year that food frequency questionnaires in these studies asked about olive oil.
Participants replied to questionnaires every 4 years that asked about use of olive oil (for salad dressing, baking, frying, sautéing, and spreading on bread), other vegetable oils (for example, corn, safflower, soybean, canola oil), margarine, butter, and dairy fat. The researchers averaged the consumption of these fats during the follow-up years.
From 1990 to 2019, the average consumption of olive oil increased from 1.6 g/day to 4 g/day. Margarine in the 1990s contained saturated fat and trans fats, whereas more recently margarine contains beneficial olive oil or vegetable fat, Dr. Guasch-Ferré noted.
Baseline olive oil consumption in this U.S. population “differed remarkably” from that in the Spanish population in the PREDIMED (Prevención con Dieta Mediterránea) trial, which was, on average, 20-22 g/day of extra-virgin olive oil and 16-18 g/day of refined/mixed olive oil, Larsson pointed out.
Because olive oil consumption was so low in this U.S. study, the researchers did not distinguish between virgin/extra-virgin olive oil and refined/processed olive oil.
The participants were almost all White (99%) and were generally healthier than the average U.S. population; on average, they had a body mass index of 25.3-25.8 kg/m2 and ate 4.8-7.2 fruits and vegetables/day.
Those with the highest olive oil consumption were more physically active, had a healthier diet, were more likely to have Southern European or Mediterranean ancestry, and were less likely to smoke.
During 28 years of follow-up, 36,856 participants died. The researchers classified the deaths into five categories: CVD, cancer, neurodegenerative disease (including Alzheimer’s disease, Parkinson’s disease, multiple sclerosis), respiratory disease (such as chronic obstructive pulmonary disease), and all other causes (including suicide, injury, infections, diabetes, and kidney disease).
After adjusting for multiple confounders, compared with participants who rarely or never consumed olive oil, those in the highest quartile for olive oil consumption had a decreased risk of death from all causes (hazard ratio, 0.81; 95% confidence interval, 0.78 - 0.84) and from CVD (HR, 0.81; 95% CI, 0.75-0.87), cancer (HR, 0.83; 95% CI, 0.78-0.89), neurodegenerative disease (HR, 0.71; 95% CI, 0.64-0.78), and respiratory disease (HR, 0.82; 95% CI, 0.72-0.93).
There was no decrease in mortality in models where the researchers substituted olive oil for vegetable oil, suggesting that vegetable oils may provide similar health benefits as olive oil.
The research was supported by grants from the National Institutes of Health. Dr. Guasch-Ferré was supported by the American Diabetes Association. Coauthor Salas-Salvadó is partially supported by the Catalan Institution for Research and Advanced Studies and received the virgin olive oil that was used in the PREDIMED and PREDIMED-Plus studies from the Patrimonio Communal Olivalero and Hojiblanca (Málaga, Spain). The other study authors and Dr. Larsson have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Compared with men and women who rarely or never consumed olive oil (the lowest intake), those who consumed greater than 0.5 tablespoon/day or more than 7 g/day (the highest intake) had a 19% lower mortality risk over a 28-year follow-up, starting from an average age of 56 years.
Moreover, compared with those with the lowest olive oil intake, those with the highest intake had a 19% lower cardiovascular disease (CVD) mortality, a 17% lower risk of dying from cancer, a 29% lower risk of dying from neurodegenerative disease, and an 18% lower risk of dying from respiratory disease during follow-up.
The researchers estimate that replacing 10 g/day of margarine, butter, mayonnaise, or dairy fat with the same amount of olive oil is associated with an 8%-34% lower risk of death from various causes.
The study by Marta Guasch-Ferré, PhD, and colleagues was published online Jan. 10 in the Journal of the American College of Cardiology.
Results support plant-based dietary fat recommendations
“Our results support current dietary recommendations to increase the intake of olive oil and other unsaturated vegetable oils in place of other fats to improve overall health and longevity,” the researchers summarize.
However, “I wouldn’t say that olive oil is the only way to help you live longer,” Dr. Guasch-Ferré, a senior research scientist in the department of nutrition, Harvard T.H. Chan School of Public Health, Boston, cautioned in an interview with this news organization.
“Other things are very important, such as not smoking, doing physical activity, etc., but one recommendation could be to try to eat more plant-based food including olive oil and healthy fat,” she added, and to use it for cooking, salad dressing, and baking, and substitute it for saturated fat or animal fat, especially for cooking.
The study suggests that people should “consume a more plant-based diet and prioritize fatty acids such as olive oil because they have a better nutritional composition (high in phenols and antioxidants), instead of using butter or margarines or other animal fats that have been shown to have detrimental effects for health,” she added, which is consistent with recommendations in the Dietary Guidelines for Americans.
“That said,” Dr. Guasch-Ferré summarized, “replication is needed in other cohorts and populations to see if the results are similar.”
In an accompanying editorial, Susanna C. Larsson, PhD, writes that “this was a well-designed study, with long-term follow-up and repeated measurements of dietary intake and other risk factors for diseases.”
“However, the difference in olive oil consumption between those with the highest and those with the lowest/no olive oil consumption was very low (0.5 tablespoon) and a [12%] reduced mortality risk was observed already at a much lower intake (0.5 teaspoon, about 1.5 g/day) of olive oil,” she noted in an email to this news organization.
“It’s a bit hard to believe that such a small amount could have an independent effect on mortality risk,” Dr. Larsson, associate professor of epidemiology at the Karolinska Institutet, Stockholm, cautioned.
Like Dr. Guasch-Ferré, she noted that “just adding one or two teaspoons of olive oil to the diet each day will likely not change the risk of mortality.”
Rather, “people may need to make larger changes in the whole diet, not focus on fat only. An overall healthier diet, rich in nonrefined plant-based foods (vegetables, whole grains, nuts), low/no intake of processed foods, and a switch to healthier fat (eg, olive oil) is needed.”
Importantly, “this study cannot say anything about causality, that is, whether it’s olive oil specifically that reduces mortality risk or if there are many other beneficial factors that act together to reduce mortality rate among those with high olive oil consumption.”
The researchers acknowledge this observational study limitation and that the findings may not be generalizable to other populations.
Novel findings regarding Alzheimer’s and respiratory disease
Dr. Larsson highlights two novel findings of this study.
First, it showed a 27% reduction in risk of dementia-related mortality for those in the highest versus lowest category of olive oil consumption. “Considering the lack of preventive strategies for Alzheimer’s disease and the high morbidity and mortality related to this disease, this finding, if confirmed, is of great public health importance,” she said.
Second, the study reported an inverse association of olive oil consumption with risk of respiratory disease mortality. “Because residual confounding from smoking cannot be ruled out,” Dr. Larsson said, “this finding is tentative and requires confirmation in a study that is less susceptible to confounding, such as a randomized trial.”
And although the current study and previous studies have found that consumption of olive oil may have health benefits, she identified several remaining questions.
“Are the associations causal or spurious?” she noted. Is olive oil consumption protective for certain cardiovascular diseases like stroke or atrial fibrillation only, as has been shown in other studies, or also for other major diseases and causes of death, she added. What is the amount of olive oil required for a protective effect?
Further, is the potential effect related to monounsaturated fatty acids (MUFAs) or phenolic compounds; that is, “is the protective effect confined to polyphenol-rich extra-virgin olive oil or are refined olive oil and other vegetable oils as beneficial? More research is needed to address these questions,” she concludes.
“Further studies are needed,” the researchers agree, “to confirm the association of olive oil consumption with reduced mortality, clarify the mechanisms responsible, and quantify the dose/volume boundaries around this effect.”
Virgin olive oil has more polyphenols
Olive oil, a key component of the Mediterranean diet, is high in MUFAs, especially oleic acid, as well as vitamin E and polyphenols, which contribute to its anti-inflammatory and antioxidant properties, the researchers explain.
Virgin olive oil, produced by mechanically pressing ripe olives, contains multiple bioactive and antioxidant components and has an acidity of less than 1.5%. And extra-virgin olive oil is produced the same way but has a higher quality, more intense taste, and lower acidity (less than 1%).
Refined or processed olive oil contains less phytochemicals, as some are lost during processing; it usually contains more than 80% refined oil, plus virgin oil added back to enhance flavor, and may also be labeled “pure” or “light.” However, refined olive oil “still has a good amount of healthy fatty acids but less bioactive compounds,” Dr. Guasch-Ferré noted.
Until now, no large prospective study has examined the link between olive oil intake and all-cause and cause-specific mortality in a U.S. population, where olive oil consumption is limited, compared with Mediterranean countries.
The researchers identified 60,582 women in the Nurses’ Health Study and 31,801 men in the Health Professionals Follow-up Study who were free of CVD or cancer in 1990, the first year that food frequency questionnaires in these studies asked about olive oil.
Participants replied to questionnaires every 4 years that asked about use of olive oil (for salad dressing, baking, frying, sautéing, and spreading on bread), other vegetable oils (for example, corn, safflower, soybean, canola oil), margarine, butter, and dairy fat. The researchers averaged the consumption of these fats during the follow-up years.
From 1990 to 2019, the average consumption of olive oil increased from 1.6 g/day to 4 g/day. Margarine in the 1990s contained saturated fat and trans fats, whereas more recently margarine contains beneficial olive oil or vegetable fat, Dr. Guasch-Ferré noted.
Baseline olive oil consumption in this U.S. population “differed remarkably” from that in the Spanish population in the PREDIMED (Prevención con Dieta Mediterránea) trial, which was, on average, 20-22 g/day of extra-virgin olive oil and 16-18 g/day of refined/mixed olive oil, Larsson pointed out.
Because olive oil consumption was so low in this U.S. study, the researchers did not distinguish between virgin/extra-virgin olive oil and refined/processed olive oil.
The participants were almost all White (99%) and were generally healthier than the average U.S. population; on average, they had a body mass index of 25.3-25.8 kg/m2 and ate 4.8-7.2 fruits and vegetables/day.
Those with the highest olive oil consumption were more physically active, had a healthier diet, were more likely to have Southern European or Mediterranean ancestry, and were less likely to smoke.
During 28 years of follow-up, 36,856 participants died. The researchers classified the deaths into five categories: CVD, cancer, neurodegenerative disease (including Alzheimer’s disease, Parkinson’s disease, multiple sclerosis), respiratory disease (such as chronic obstructive pulmonary disease), and all other causes (including suicide, injury, infections, diabetes, and kidney disease).
After adjusting for multiple confounders, compared with participants who rarely or never consumed olive oil, those in the highest quartile for olive oil consumption had a decreased risk of death from all causes (hazard ratio, 0.81; 95% confidence interval, 0.78 - 0.84) and from CVD (HR, 0.81; 95% CI, 0.75-0.87), cancer (HR, 0.83; 95% CI, 0.78-0.89), neurodegenerative disease (HR, 0.71; 95% CI, 0.64-0.78), and respiratory disease (HR, 0.82; 95% CI, 0.72-0.93).
There was no decrease in mortality in models where the researchers substituted olive oil for vegetable oil, suggesting that vegetable oils may provide similar health benefits as olive oil.
The research was supported by grants from the National Institutes of Health. Dr. Guasch-Ferré was supported by the American Diabetes Association. Coauthor Salas-Salvadó is partially supported by the Catalan Institution for Research and Advanced Studies and received the virgin olive oil that was used in the PREDIMED and PREDIMED-Plus studies from the Patrimonio Communal Olivalero and Hojiblanca (Málaga, Spain). The other study authors and Dr. Larsson have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Compared with men and women who rarely or never consumed olive oil (the lowest intake), those who consumed greater than 0.5 tablespoon/day or more than 7 g/day (the highest intake) had a 19% lower mortality risk over a 28-year follow-up, starting from an average age of 56 years.
Moreover, compared with those with the lowest olive oil intake, those with the highest intake had a 19% lower cardiovascular disease (CVD) mortality, a 17% lower risk of dying from cancer, a 29% lower risk of dying from neurodegenerative disease, and an 18% lower risk of dying from respiratory disease during follow-up.
The researchers estimate that replacing 10 g/day of margarine, butter, mayonnaise, or dairy fat with the same amount of olive oil is associated with an 8%-34% lower risk of death from various causes.
The study by Marta Guasch-Ferré, PhD, and colleagues was published online Jan. 10 in the Journal of the American College of Cardiology.
Results support plant-based dietary fat recommendations
“Our results support current dietary recommendations to increase the intake of olive oil and other unsaturated vegetable oils in place of other fats to improve overall health and longevity,” the researchers summarize.
However, “I wouldn’t say that olive oil is the only way to help you live longer,” Dr. Guasch-Ferré, a senior research scientist in the department of nutrition, Harvard T.H. Chan School of Public Health, Boston, cautioned in an interview with this news organization.
“Other things are very important, such as not smoking, doing physical activity, etc., but one recommendation could be to try to eat more plant-based food including olive oil and healthy fat,” she added, and to use it for cooking, salad dressing, and baking, and substitute it for saturated fat or animal fat, especially for cooking.
The study suggests that people should “consume a more plant-based diet and prioritize fatty acids such as olive oil because they have a better nutritional composition (high in phenols and antioxidants), instead of using butter or margarines or other animal fats that have been shown to have detrimental effects for health,” she added, which is consistent with recommendations in the Dietary Guidelines for Americans.
“That said,” Dr. Guasch-Ferré summarized, “replication is needed in other cohorts and populations to see if the results are similar.”
In an accompanying editorial, Susanna C. Larsson, PhD, writes that “this was a well-designed study, with long-term follow-up and repeated measurements of dietary intake and other risk factors for diseases.”
“However, the difference in olive oil consumption between those with the highest and those with the lowest/no olive oil consumption was very low (0.5 tablespoon) and a [12%] reduced mortality risk was observed already at a much lower intake (0.5 teaspoon, about 1.5 g/day) of olive oil,” she noted in an email to this news organization.
“It’s a bit hard to believe that such a small amount could have an independent effect on mortality risk,” Dr. Larsson, associate professor of epidemiology at the Karolinska Institutet, Stockholm, cautioned.
Like Dr. Guasch-Ferré, she noted that “just adding one or two teaspoons of olive oil to the diet each day will likely not change the risk of mortality.”
Rather, “people may need to make larger changes in the whole diet, not focus on fat only. An overall healthier diet, rich in nonrefined plant-based foods (vegetables, whole grains, nuts), low/no intake of processed foods, and a switch to healthier fat (eg, olive oil) is needed.”
Importantly, “this study cannot say anything about causality, that is, whether it’s olive oil specifically that reduces mortality risk or if there are many other beneficial factors that act together to reduce mortality rate among those with high olive oil consumption.”
The researchers acknowledge this observational study limitation and that the findings may not be generalizable to other populations.
Novel findings regarding Alzheimer’s and respiratory disease
Dr. Larsson highlights two novel findings of this study.
First, it showed a 27% reduction in risk of dementia-related mortality for those in the highest versus lowest category of olive oil consumption. “Considering the lack of preventive strategies for Alzheimer’s disease and the high morbidity and mortality related to this disease, this finding, if confirmed, is of great public health importance,” she said.
Second, the study reported an inverse association of olive oil consumption with risk of respiratory disease mortality. “Because residual confounding from smoking cannot be ruled out,” Dr. Larsson said, “this finding is tentative and requires confirmation in a study that is less susceptible to confounding, such as a randomized trial.”
And although the current study and previous studies have found that consumption of olive oil may have health benefits, she identified several remaining questions.
“Are the associations causal or spurious?” she noted. Is olive oil consumption protective for certain cardiovascular diseases like stroke or atrial fibrillation only, as has been shown in other studies, or also for other major diseases and causes of death, she added. What is the amount of olive oil required for a protective effect?
Further, is the potential effect related to monounsaturated fatty acids (MUFAs) or phenolic compounds; that is, “is the protective effect confined to polyphenol-rich extra-virgin olive oil or are refined olive oil and other vegetable oils as beneficial? More research is needed to address these questions,” she concludes.
“Further studies are needed,” the researchers agree, “to confirm the association of olive oil consumption with reduced mortality, clarify the mechanisms responsible, and quantify the dose/volume boundaries around this effect.”
Virgin olive oil has more polyphenols
Olive oil, a key component of the Mediterranean diet, is high in MUFAs, especially oleic acid, as well as vitamin E and polyphenols, which contribute to its anti-inflammatory and antioxidant properties, the researchers explain.
Virgin olive oil, produced by mechanically pressing ripe olives, contains multiple bioactive and antioxidant components and has an acidity of less than 1.5%. And extra-virgin olive oil is produced the same way but has a higher quality, more intense taste, and lower acidity (less than 1%).
Refined or processed olive oil contains less phytochemicals, as some are lost during processing; it usually contains more than 80% refined oil, plus virgin oil added back to enhance flavor, and may also be labeled “pure” or “light.” However, refined olive oil “still has a good amount of healthy fatty acids but less bioactive compounds,” Dr. Guasch-Ferré noted.
Until now, no large prospective study has examined the link between olive oil intake and all-cause and cause-specific mortality in a U.S. population, where olive oil consumption is limited, compared with Mediterranean countries.
The researchers identified 60,582 women in the Nurses’ Health Study and 31,801 men in the Health Professionals Follow-up Study who were free of CVD or cancer in 1990, the first year that food frequency questionnaires in these studies asked about olive oil.
Participants replied to questionnaires every 4 years that asked about use of olive oil (for salad dressing, baking, frying, sautéing, and spreading on bread), other vegetable oils (for example, corn, safflower, soybean, canola oil), margarine, butter, and dairy fat. The researchers averaged the consumption of these fats during the follow-up years.
From 1990 to 2019, the average consumption of olive oil increased from 1.6 g/day to 4 g/day. Margarine in the 1990s contained saturated fat and trans fats, whereas more recently margarine contains beneficial olive oil or vegetable fat, Dr. Guasch-Ferré noted.
Baseline olive oil consumption in this U.S. population “differed remarkably” from that in the Spanish population in the PREDIMED (Prevención con Dieta Mediterránea) trial, which was, on average, 20-22 g/day of extra-virgin olive oil and 16-18 g/day of refined/mixed olive oil, Larsson pointed out.
Because olive oil consumption was so low in this U.S. study, the researchers did not distinguish between virgin/extra-virgin olive oil and refined/processed olive oil.
The participants were almost all White (99%) and were generally healthier than the average U.S. population; on average, they had a body mass index of 25.3-25.8 kg/m2 and ate 4.8-7.2 fruits and vegetables/day.
Those with the highest olive oil consumption were more physically active, had a healthier diet, were more likely to have Southern European or Mediterranean ancestry, and were less likely to smoke.
During 28 years of follow-up, 36,856 participants died. The researchers classified the deaths into five categories: CVD, cancer, neurodegenerative disease (including Alzheimer’s disease, Parkinson’s disease, multiple sclerosis), respiratory disease (such as chronic obstructive pulmonary disease), and all other causes (including suicide, injury, infections, diabetes, and kidney disease).
After adjusting for multiple confounders, compared with participants who rarely or never consumed olive oil, those in the highest quartile for olive oil consumption had a decreased risk of death from all causes (hazard ratio, 0.81; 95% confidence interval, 0.78 - 0.84) and from CVD (HR, 0.81; 95% CI, 0.75-0.87), cancer (HR, 0.83; 95% CI, 0.78-0.89), neurodegenerative disease (HR, 0.71; 95% CI, 0.64-0.78), and respiratory disease (HR, 0.82; 95% CI, 0.72-0.93).
There was no decrease in mortality in models where the researchers substituted olive oil for vegetable oil, suggesting that vegetable oils may provide similar health benefits as olive oil.
The research was supported by grants from the National Institutes of Health. Dr. Guasch-Ferré was supported by the American Diabetes Association. Coauthor Salas-Salvadó is partially supported by the Catalan Institution for Research and Advanced Studies and received the virgin olive oil that was used in the PREDIMED and PREDIMED-Plus studies from the Patrimonio Communal Olivalero and Hojiblanca (Málaga, Spain). The other study authors and Dr. Larsson have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Similar 10-year survival after CABG, PCI in heavy calcification
Patients with complex coronary artery disease (CAD) – either three-vessel disease and/or left main disease – who also had heavy coronary artery calcification (CAC) had greater all-cause mortality 10 years after revascularization, compared with those without such lesions.
However, perhaps unexpectedly, patients with heavily calcified lesions (HCLs) had similar 10-year survival whether they had undergone coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI).
These findings from a post hoc analysis of the SYNTAX Extended Survival (SYNTAXES) study led by Hideyuki Kawashima, MD, PhD, National University of Ireland, Galway, and the University of Amsterdam, were published online Dec. 29, 2021, in JACC: Cardiovascular Interventions.
“There was an apparent lack of benefit at very long-term with CABG versus PCI in the presence of HCL,” Dr. Kawashima and corresponding author Patrick W. Serruys, MD, PhD, National University of Ireland and Imperial College London, summarized in a joint email to this news organization.
“Since HCLs – the final status of atherosclerosis and inflammation – reflect the aging process, complexity, and extensiveness of CAD, and comorbidity, it is possible that the currently available revascularization methods do not provide benefit in the prevention of long-term [10-year] mortality,” they suggested.
In an accompanying editorial, Usman Baber, MD, commented that this study provides a “novel insight.”
Specifically, while patients without HCLs had significantly lower 10-year mortality with CABG versus PCI (18.8% vs. 26.0%; P = .003), an opposite trend was observed among those with HCLs (39.0% vs. 34.0%; P = .26; P int = .005).
The patients with HCLs had higher SYNTAX scores (30.8 vs. 22.4; P < .001) and more complex CAD, so their lack of 10-year mortality benefit with CABG “is somewhat unexpected and warrants further scrutiny,” added Dr. Baber, from the University of Oklahoma Health Sciences Center in Oklahoma City.
Dr. Serruys and Dr. Kawashima agreed that “this study highlights the need for further research on this topic focusing on this specific population with HCLs,” which were 30% of the patients with complex lesions who participated in SYNTAXES.
Consider factors beyond coronary anatomy
The current findings reinforce “the importance of considering not just coronary anatomy, but patient age and other comorbid factors when evaluating mode of revascularization,” said Dr. Baber.
“Coronary calcification is a strong factor in deciding between CABG versus PCI, as multiple studies have shown that CAC increases risk after PCI, even with contemporary safe stent platforms,” he explained in an email.
The current study suggests the adverse prognosis associated with CAC also persists for patients treated with CABG.
Dr. Baber said that, “for patients in whom PCI may not be feasible due to extensive and bulky coronary calcification, it is important to emphasize that the benefits of CABG (versus PCI) may not be as significant or durable.”
“The lack of benefit with CABG,” he added, “is likely due to comorbid factors that tend to increase in prevalence with vascular calcification (older age, peripheral arterial disease, renal impairment, etc).”
This study reinforces “the importance of not just considering coronary complexity, but also additional noncoronary factors that influence long-term prognosis in patients with advanced multivessel CAD,” Dr. Baber stressed.
More aggressive lipid-lowering or antithrombotic therapy may improve the prognosis for such patients, he suggested.
“In general,” Dr. Serruys and Dr. Kawashima similarly noted, “for short-/mid-term outcomes, CABG is preferred to PCI in patients with HCLs because of a higher rate of complete revascularization and less need for repeat revascularization.”
“Our findings at 10 years are in line with the general findings preferring CABG in mid and long term, whereas the benefit of very long-term follow-up might be more complex to capture and comprehend,” they concluded. “Whether HCLs require special consideration when deciding the mode of revascularization beyond their contribution to the SYNTAX score deserves further evaluation.
“Newer PCI technology or CABG methods may become a game-changer in the future,” they speculated.
Worse clinical outcomes
Heavy coronary calcification is associated with worse clinical outcomes after PCI or CABG, but to date, no trial has compared 10-year outcomes after PCI or CABG in patients with complex CAD with versus without HCLs.
To look at this, Dr. Kawashima and colleagues performed a subanalysis of patients in the SYNTAXES study. The original SYNTAX trial had randomized 1,800 patients with complex CAD who were eligible for either PCI or CABG 1:1 to these two treatments, with a 5-year follow-up, and SYNTAXES extended the follow-up to 10 years.
Of the 1,800 patients, 532 (29.6%) had at least one HCL and the rest (70.4%) did not.
The median follow-up in SYNTAXES was 11.2 years overall and 11.9 years in survivors.
At baseline, compared with other patients, those with HCLs were older and had a lower body mass index and higher rates of insulin-treated diabetes, hypertension, previous cerebrovascular disease, peripheral vascular disease, chronic obstructive pulmonary disease, chronic kidney disease, and heart failure.
After adjusting for multiple variables, having a HCL was an independent predictor of greater risk of 10-year mortality (hazard ratio, 1.36; 95% confidence interval, 1.09-1.69; P = .006).
In patients without HCLs, mortality was significantly higher after PCI than CABG (HR, 1.44; 95% CI, 1.14-1.83; P = .003), whereas in those with HCLs, there was no significant difference (HR, 0.85; 95% CI, 0.64-1.13; P = .264).
The location of the HCL did not have any impact on 10-year mortality regardless of the assigned treatment.
Among patients with at least one HCL who underwent CABG, those with at least two HCLs had greater 10-year all-cause mortality than those with one HCL; this difference was not seen among patients with at least one HCL who underwent PCI.
The researchers acknowledge study limitations include that it was a post hoc analysis, so it should be considered hypothesis generating.
In addition, SYNTAX was conducted between 2005 and 2007, when PCI mainly used first-generation paclitaxel drug-eluting stents, so the findings may not be generalizable to current practice.
SYNTAXES was supported by the German Foundation of Heart Research. SYNTAX, during 0- to 5-year follow-up, was funded by Boston Scientific. Dr. Serruys reported receiving personal fees from SMT, Philips/Volcano, Xeltis, Novartis, and Meril Life. Dr. Kawashima reported no relevant financial relationships. Dr. Baber reported receiving honoraria and speaker fees from AstraZeneca, Biotronik, and Amgen.
A version of this article first appeared on Medscape.com.
Patients with complex coronary artery disease (CAD) – either three-vessel disease and/or left main disease – who also had heavy coronary artery calcification (CAC) had greater all-cause mortality 10 years after revascularization, compared with those without such lesions.
However, perhaps unexpectedly, patients with heavily calcified lesions (HCLs) had similar 10-year survival whether they had undergone coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI).
These findings from a post hoc analysis of the SYNTAX Extended Survival (SYNTAXES) study led by Hideyuki Kawashima, MD, PhD, National University of Ireland, Galway, and the University of Amsterdam, were published online Dec. 29, 2021, in JACC: Cardiovascular Interventions.
“There was an apparent lack of benefit at very long-term with CABG versus PCI in the presence of HCL,” Dr. Kawashima and corresponding author Patrick W. Serruys, MD, PhD, National University of Ireland and Imperial College London, summarized in a joint email to this news organization.
“Since HCLs – the final status of atherosclerosis and inflammation – reflect the aging process, complexity, and extensiveness of CAD, and comorbidity, it is possible that the currently available revascularization methods do not provide benefit in the prevention of long-term [10-year] mortality,” they suggested.
In an accompanying editorial, Usman Baber, MD, commented that this study provides a “novel insight.”
Specifically, while patients without HCLs had significantly lower 10-year mortality with CABG versus PCI (18.8% vs. 26.0%; P = .003), an opposite trend was observed among those with HCLs (39.0% vs. 34.0%; P = .26; P int = .005).
The patients with HCLs had higher SYNTAX scores (30.8 vs. 22.4; P < .001) and more complex CAD, so their lack of 10-year mortality benefit with CABG “is somewhat unexpected and warrants further scrutiny,” added Dr. Baber, from the University of Oklahoma Health Sciences Center in Oklahoma City.
Dr. Serruys and Dr. Kawashima agreed that “this study highlights the need for further research on this topic focusing on this specific population with HCLs,” which were 30% of the patients with complex lesions who participated in SYNTAXES.
Consider factors beyond coronary anatomy
The current findings reinforce “the importance of considering not just coronary anatomy, but patient age and other comorbid factors when evaluating mode of revascularization,” said Dr. Baber.
“Coronary calcification is a strong factor in deciding between CABG versus PCI, as multiple studies have shown that CAC increases risk after PCI, even with contemporary safe stent platforms,” he explained in an email.
The current study suggests the adverse prognosis associated with CAC also persists for patients treated with CABG.
Dr. Baber said that, “for patients in whom PCI may not be feasible due to extensive and bulky coronary calcification, it is important to emphasize that the benefits of CABG (versus PCI) may not be as significant or durable.”
“The lack of benefit with CABG,” he added, “is likely due to comorbid factors that tend to increase in prevalence with vascular calcification (older age, peripheral arterial disease, renal impairment, etc).”
This study reinforces “the importance of not just considering coronary complexity, but also additional noncoronary factors that influence long-term prognosis in patients with advanced multivessel CAD,” Dr. Baber stressed.
More aggressive lipid-lowering or antithrombotic therapy may improve the prognosis for such patients, he suggested.
“In general,” Dr. Serruys and Dr. Kawashima similarly noted, “for short-/mid-term outcomes, CABG is preferred to PCI in patients with HCLs because of a higher rate of complete revascularization and less need for repeat revascularization.”
“Our findings at 10 years are in line with the general findings preferring CABG in mid and long term, whereas the benefit of very long-term follow-up might be more complex to capture and comprehend,” they concluded. “Whether HCLs require special consideration when deciding the mode of revascularization beyond their contribution to the SYNTAX score deserves further evaluation.
“Newer PCI technology or CABG methods may become a game-changer in the future,” they speculated.
Worse clinical outcomes
Heavy coronary calcification is associated with worse clinical outcomes after PCI or CABG, but to date, no trial has compared 10-year outcomes after PCI or CABG in patients with complex CAD with versus without HCLs.
To look at this, Dr. Kawashima and colleagues performed a subanalysis of patients in the SYNTAXES study. The original SYNTAX trial had randomized 1,800 patients with complex CAD who were eligible for either PCI or CABG 1:1 to these two treatments, with a 5-year follow-up, and SYNTAXES extended the follow-up to 10 years.
Of the 1,800 patients, 532 (29.6%) had at least one HCL and the rest (70.4%) did not.
The median follow-up in SYNTAXES was 11.2 years overall and 11.9 years in survivors.
At baseline, compared with other patients, those with HCLs were older and had a lower body mass index and higher rates of insulin-treated diabetes, hypertension, previous cerebrovascular disease, peripheral vascular disease, chronic obstructive pulmonary disease, chronic kidney disease, and heart failure.
After adjusting for multiple variables, having a HCL was an independent predictor of greater risk of 10-year mortality (hazard ratio, 1.36; 95% confidence interval, 1.09-1.69; P = .006).
In patients without HCLs, mortality was significantly higher after PCI than CABG (HR, 1.44; 95% CI, 1.14-1.83; P = .003), whereas in those with HCLs, there was no significant difference (HR, 0.85; 95% CI, 0.64-1.13; P = .264).
The location of the HCL did not have any impact on 10-year mortality regardless of the assigned treatment.
Among patients with at least one HCL who underwent CABG, those with at least two HCLs had greater 10-year all-cause mortality than those with one HCL; this difference was not seen among patients with at least one HCL who underwent PCI.
The researchers acknowledge study limitations include that it was a post hoc analysis, so it should be considered hypothesis generating.
In addition, SYNTAX was conducted between 2005 and 2007, when PCI mainly used first-generation paclitaxel drug-eluting stents, so the findings may not be generalizable to current practice.
SYNTAXES was supported by the German Foundation of Heart Research. SYNTAX, during 0- to 5-year follow-up, was funded by Boston Scientific. Dr. Serruys reported receiving personal fees from SMT, Philips/Volcano, Xeltis, Novartis, and Meril Life. Dr. Kawashima reported no relevant financial relationships. Dr. Baber reported receiving honoraria and speaker fees from AstraZeneca, Biotronik, and Amgen.
A version of this article first appeared on Medscape.com.
Patients with complex coronary artery disease (CAD) – either three-vessel disease and/or left main disease – who also had heavy coronary artery calcification (CAC) had greater all-cause mortality 10 years after revascularization, compared with those without such lesions.
However, perhaps unexpectedly, patients with heavily calcified lesions (HCLs) had similar 10-year survival whether they had undergone coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI).
These findings from a post hoc analysis of the SYNTAX Extended Survival (SYNTAXES) study led by Hideyuki Kawashima, MD, PhD, National University of Ireland, Galway, and the University of Amsterdam, were published online Dec. 29, 2021, in JACC: Cardiovascular Interventions.
“There was an apparent lack of benefit at very long-term with CABG versus PCI in the presence of HCL,” Dr. Kawashima and corresponding author Patrick W. Serruys, MD, PhD, National University of Ireland and Imperial College London, summarized in a joint email to this news organization.
“Since HCLs – the final status of atherosclerosis and inflammation – reflect the aging process, complexity, and extensiveness of CAD, and comorbidity, it is possible that the currently available revascularization methods do not provide benefit in the prevention of long-term [10-year] mortality,” they suggested.
In an accompanying editorial, Usman Baber, MD, commented that this study provides a “novel insight.”
Specifically, while patients without HCLs had significantly lower 10-year mortality with CABG versus PCI (18.8% vs. 26.0%; P = .003), an opposite trend was observed among those with HCLs (39.0% vs. 34.0%; P = .26; P int = .005).
The patients with HCLs had higher SYNTAX scores (30.8 vs. 22.4; P < .001) and more complex CAD, so their lack of 10-year mortality benefit with CABG “is somewhat unexpected and warrants further scrutiny,” added Dr. Baber, from the University of Oklahoma Health Sciences Center in Oklahoma City.
Dr. Serruys and Dr. Kawashima agreed that “this study highlights the need for further research on this topic focusing on this specific population with HCLs,” which were 30% of the patients with complex lesions who participated in SYNTAXES.
Consider factors beyond coronary anatomy
The current findings reinforce “the importance of considering not just coronary anatomy, but patient age and other comorbid factors when evaluating mode of revascularization,” said Dr. Baber.
“Coronary calcification is a strong factor in deciding between CABG versus PCI, as multiple studies have shown that CAC increases risk after PCI, even with contemporary safe stent platforms,” he explained in an email.
The current study suggests the adverse prognosis associated with CAC also persists for patients treated with CABG.
Dr. Baber said that, “for patients in whom PCI may not be feasible due to extensive and bulky coronary calcification, it is important to emphasize that the benefits of CABG (versus PCI) may not be as significant or durable.”
“The lack of benefit with CABG,” he added, “is likely due to comorbid factors that tend to increase in prevalence with vascular calcification (older age, peripheral arterial disease, renal impairment, etc).”
This study reinforces “the importance of not just considering coronary complexity, but also additional noncoronary factors that influence long-term prognosis in patients with advanced multivessel CAD,” Dr. Baber stressed.
More aggressive lipid-lowering or antithrombotic therapy may improve the prognosis for such patients, he suggested.
“In general,” Dr. Serruys and Dr. Kawashima similarly noted, “for short-/mid-term outcomes, CABG is preferred to PCI in patients with HCLs because of a higher rate of complete revascularization and less need for repeat revascularization.”
“Our findings at 10 years are in line with the general findings preferring CABG in mid and long term, whereas the benefit of very long-term follow-up might be more complex to capture and comprehend,” they concluded. “Whether HCLs require special consideration when deciding the mode of revascularization beyond their contribution to the SYNTAX score deserves further evaluation.
“Newer PCI technology or CABG methods may become a game-changer in the future,” they speculated.
Worse clinical outcomes
Heavy coronary calcification is associated with worse clinical outcomes after PCI or CABG, but to date, no trial has compared 10-year outcomes after PCI or CABG in patients with complex CAD with versus without HCLs.
To look at this, Dr. Kawashima and colleagues performed a subanalysis of patients in the SYNTAXES study. The original SYNTAX trial had randomized 1,800 patients with complex CAD who were eligible for either PCI or CABG 1:1 to these two treatments, with a 5-year follow-up, and SYNTAXES extended the follow-up to 10 years.
Of the 1,800 patients, 532 (29.6%) had at least one HCL and the rest (70.4%) did not.
The median follow-up in SYNTAXES was 11.2 years overall and 11.9 years in survivors.
At baseline, compared with other patients, those with HCLs were older and had a lower body mass index and higher rates of insulin-treated diabetes, hypertension, previous cerebrovascular disease, peripheral vascular disease, chronic obstructive pulmonary disease, chronic kidney disease, and heart failure.
After adjusting for multiple variables, having a HCL was an independent predictor of greater risk of 10-year mortality (hazard ratio, 1.36; 95% confidence interval, 1.09-1.69; P = .006).
In patients without HCLs, mortality was significantly higher after PCI than CABG (HR, 1.44; 95% CI, 1.14-1.83; P = .003), whereas in those with HCLs, there was no significant difference (HR, 0.85; 95% CI, 0.64-1.13; P = .264).
The location of the HCL did not have any impact on 10-year mortality regardless of the assigned treatment.
Among patients with at least one HCL who underwent CABG, those with at least two HCLs had greater 10-year all-cause mortality than those with one HCL; this difference was not seen among patients with at least one HCL who underwent PCI.
The researchers acknowledge study limitations include that it was a post hoc analysis, so it should be considered hypothesis generating.
In addition, SYNTAX was conducted between 2005 and 2007, when PCI mainly used first-generation paclitaxel drug-eluting stents, so the findings may not be generalizable to current practice.
SYNTAXES was supported by the German Foundation of Heart Research. SYNTAX, during 0- to 5-year follow-up, was funded by Boston Scientific. Dr. Serruys reported receiving personal fees from SMT, Philips/Volcano, Xeltis, Novartis, and Meril Life. Dr. Kawashima reported no relevant financial relationships. Dr. Baber reported receiving honoraria and speaker fees from AstraZeneca, Biotronik, and Amgen.
A version of this article first appeared on Medscape.com.
FROM JACC: CARDIOVASCULAR INTERVENTIONS
Bariatric surgery can lead to diabetes remission, cut cancer risk
Patients with obesity and type 2 diabetes who underwent bariatric surgery and had 10-year durable diabetes remission had a 60% lower risk of incident cancer than patients who had usual obesity care.
And women who had bariatric surgery had a 42% lower risk of having cancer during a median 21-year follow-up, compared with women who had usual obesity care.
These findings from 701 patients in the Swedish Obese Subjects (SOS) study who had type 2 diabetes were recently published in Diabetes Care.
The results illustrate the “connection between glucose control and cancer prevention” and suggest that “among patients with type 2 diabetes, many cancer cases are preventable,” lead author Kajsa Sjöholm, PhD, associate professor of molecular medicine at Sahlgrenska Academy, University of Gothenburg (Sweden), said in a press release from the university.
“The global epidemic of both obesity and diabetes leads to an increased risk of cancer, as well as an increased risk of premature death,” added senior author Magdalena Taube, PhD, associate professor of molecular medicine in the same academy.
“It has been estimated that, over the next 10-15 years, obesity may cause more cancer cases than smoking in several countries,” she noted. Therefore, “strategies are needed to prevent this development, and our results can provide vital guidance for prevention of cancer in patients with obesity and type 2 diabetes.”
Durable diabetes remission seems key
Two-thirds of the patients in the bariatric surgery group had vertical banded gastroplasty (65%), and the rest had adjustable or nonadjustable gastric banding (18%) or gastric bypass (17%).
Each type of bariatric surgery was associated with higher diabetes remission rates, compared with usual care, in a previous study by these researchers, Dr. Taube said in an interview.
“In our present study,” she added, “we observed a nonsignificant trend, where patients with obesity and type 2 diabetes in the highest weight loss tertile (average weight loss, –44.8 kg) had somewhat lower risk of cancer compared to the lowest tertile [average weight loss, –14.9 kg].”
This might suggest, Dr. Taube continued, that with respect to cancer risk, surgery techniques resulting in greater weight loss (for example, Roux-en-Y gastric bypass and sleeve gastrectomy) should be recommended in patients with obesity and diabetes.
“However, it should also be noted that long-term diabetes remission seems imperative for cancer risk reduction,” she said, “and in a recent meta-analysis by McTigue et al., published in JAMA Surgery, it was shown that patients who had Roux-en-Y gastric bypass had greater weight loss, a slightly higher type 2 diabetes remission rate, less type 2 diabetes relapse, and better long-term glycemic control, compared with those who had sleeve gastrectomy.
“The observed cancer reduction in women with obesity and type 2 diabetes is in line with previous findings showing that cancer risk reduction following bariatric surgery in patients with obesity is more marked among women than men,” Dr. Taube noted. This may be because cancer rates are higher in women with diabetes than in men with diabetes, and common cancer types associated with obesity are female specific.
The main cancers in women were breast cancer, followed by endometrial and colorectal cancer. In men, the main cancers were colorectal, prostate, and urothelial/malignant skin cancer.
Study design and findings
It is well established that obesity is a risk factor for 13 types of cancer, and some of these cancers (liver, pancreatic, endometrial, colon and rectal, breast, and bladder) may be related to type 2 diabetes. And bariatric surgery has been shown to reduce cancer risk in patients with obesity.
However, it is not clear how bariatric surgery may affect cancer risk in patients with obesity and type 2 diabetes.
To study this, the researchers examined data from 393 patients who underwent bariatric surgery and 308 patients who received usual obesity treatment, who were part of the SOS study.
The SOS study enrolled men with a body mass index of at least 34 kg/m2, and women with a BMI of at least 38 kg/m2 who were aged 37-60 years between 1987 and 2001.
The current study outcome – cancer incidence in patients with obesity and type 2 diabetes – was not a prespecified outcome
The intervention groups were matched on 18 variables, including age, sex, serum insulin, alcohol, education, and smoking.
At baseline, the patients had a mean age of about 49 and 60% were women. They had a mean BMI of about 42 and a mean hemoglobin A1c of 7.8%.
On average, patients in the surgery group had lost 27.5 kg and 22.7 kg, and patients in the usual care group had lost 3.2 kg and 4.8 kg, at 2 years and 10 years, respectively.
During a median follow-up of 21 years, there were 74 incident cancers in the control group and 68 cancers in the bariatric surgery group.
The risk of cancer during follow-up was 37% lower in the surgery group than in the usual care group, after multivariable adjustment (adjusted hazard ratio, 0.63; 95% confidence interval, 0.44-0.89; P = .008).
A deeper dive showed that there were 86 incident cancers in women and 56 cancers in men. The risk of cancer was significantly lower in women who had bariatric surgery, compared with those who had usual care (aHR, 0.58; 95% CI 0.38-0.90, P = .016). However, the risk of cancer was not significantly lower in men who had bariatric surgery versus those who had usual care (aHR 0.79, 95% CI, 0.46-1.38; P = .413).
Diabetes remission at 10 years was associated with a 60% reduced cancer incidence (aHR, 0.40; 95% CI, 0.22-0.74, P = .003).
The study was funded by the Swedish state (under an agreement between the Swedish government and the county councils), the Swedish Research Council, the Novo Nordisk Foundation, the Swedish Heart-Lung Foundation, and the Swedish Diabetes Foundation. One author received consulting fees from Johnson & Johnson. The other authors had no relevant financial disclosures.
A version of this article first appeared on Medscape.com.
Patients with obesity and type 2 diabetes who underwent bariatric surgery and had 10-year durable diabetes remission had a 60% lower risk of incident cancer than patients who had usual obesity care.
And women who had bariatric surgery had a 42% lower risk of having cancer during a median 21-year follow-up, compared with women who had usual obesity care.
These findings from 701 patients in the Swedish Obese Subjects (SOS) study who had type 2 diabetes were recently published in Diabetes Care.
The results illustrate the “connection between glucose control and cancer prevention” and suggest that “among patients with type 2 diabetes, many cancer cases are preventable,” lead author Kajsa Sjöholm, PhD, associate professor of molecular medicine at Sahlgrenska Academy, University of Gothenburg (Sweden), said in a press release from the university.
“The global epidemic of both obesity and diabetes leads to an increased risk of cancer, as well as an increased risk of premature death,” added senior author Magdalena Taube, PhD, associate professor of molecular medicine in the same academy.
“It has been estimated that, over the next 10-15 years, obesity may cause more cancer cases than smoking in several countries,” she noted. Therefore, “strategies are needed to prevent this development, and our results can provide vital guidance for prevention of cancer in patients with obesity and type 2 diabetes.”
Durable diabetes remission seems key
Two-thirds of the patients in the bariatric surgery group had vertical banded gastroplasty (65%), and the rest had adjustable or nonadjustable gastric banding (18%) or gastric bypass (17%).
Each type of bariatric surgery was associated with higher diabetes remission rates, compared with usual care, in a previous study by these researchers, Dr. Taube said in an interview.
“In our present study,” she added, “we observed a nonsignificant trend, where patients with obesity and type 2 diabetes in the highest weight loss tertile (average weight loss, –44.8 kg) had somewhat lower risk of cancer compared to the lowest tertile [average weight loss, –14.9 kg].”
This might suggest, Dr. Taube continued, that with respect to cancer risk, surgery techniques resulting in greater weight loss (for example, Roux-en-Y gastric bypass and sleeve gastrectomy) should be recommended in patients with obesity and diabetes.
“However, it should also be noted that long-term diabetes remission seems imperative for cancer risk reduction,” she said, “and in a recent meta-analysis by McTigue et al., published in JAMA Surgery, it was shown that patients who had Roux-en-Y gastric bypass had greater weight loss, a slightly higher type 2 diabetes remission rate, less type 2 diabetes relapse, and better long-term glycemic control, compared with those who had sleeve gastrectomy.
“The observed cancer reduction in women with obesity and type 2 diabetes is in line with previous findings showing that cancer risk reduction following bariatric surgery in patients with obesity is more marked among women than men,” Dr. Taube noted. This may be because cancer rates are higher in women with diabetes than in men with diabetes, and common cancer types associated with obesity are female specific.
The main cancers in women were breast cancer, followed by endometrial and colorectal cancer. In men, the main cancers were colorectal, prostate, and urothelial/malignant skin cancer.
Study design and findings
It is well established that obesity is a risk factor for 13 types of cancer, and some of these cancers (liver, pancreatic, endometrial, colon and rectal, breast, and bladder) may be related to type 2 diabetes. And bariatric surgery has been shown to reduce cancer risk in patients with obesity.
However, it is not clear how bariatric surgery may affect cancer risk in patients with obesity and type 2 diabetes.
To study this, the researchers examined data from 393 patients who underwent bariatric surgery and 308 patients who received usual obesity treatment, who were part of the SOS study.
The SOS study enrolled men with a body mass index of at least 34 kg/m2, and women with a BMI of at least 38 kg/m2 who were aged 37-60 years between 1987 and 2001.
The current study outcome – cancer incidence in patients with obesity and type 2 diabetes – was not a prespecified outcome
The intervention groups were matched on 18 variables, including age, sex, serum insulin, alcohol, education, and smoking.
At baseline, the patients had a mean age of about 49 and 60% were women. They had a mean BMI of about 42 and a mean hemoglobin A1c of 7.8%.
On average, patients in the surgery group had lost 27.5 kg and 22.7 kg, and patients in the usual care group had lost 3.2 kg and 4.8 kg, at 2 years and 10 years, respectively.
During a median follow-up of 21 years, there were 74 incident cancers in the control group and 68 cancers in the bariatric surgery group.
The risk of cancer during follow-up was 37% lower in the surgery group than in the usual care group, after multivariable adjustment (adjusted hazard ratio, 0.63; 95% confidence interval, 0.44-0.89; P = .008).
A deeper dive showed that there were 86 incident cancers in women and 56 cancers in men. The risk of cancer was significantly lower in women who had bariatric surgery, compared with those who had usual care (aHR, 0.58; 95% CI 0.38-0.90, P = .016). However, the risk of cancer was not significantly lower in men who had bariatric surgery versus those who had usual care (aHR 0.79, 95% CI, 0.46-1.38; P = .413).
Diabetes remission at 10 years was associated with a 60% reduced cancer incidence (aHR, 0.40; 95% CI, 0.22-0.74, P = .003).
The study was funded by the Swedish state (under an agreement between the Swedish government and the county councils), the Swedish Research Council, the Novo Nordisk Foundation, the Swedish Heart-Lung Foundation, and the Swedish Diabetes Foundation. One author received consulting fees from Johnson & Johnson. The other authors had no relevant financial disclosures.
A version of this article first appeared on Medscape.com.
Patients with obesity and type 2 diabetes who underwent bariatric surgery and had 10-year durable diabetes remission had a 60% lower risk of incident cancer than patients who had usual obesity care.
And women who had bariatric surgery had a 42% lower risk of having cancer during a median 21-year follow-up, compared with women who had usual obesity care.
These findings from 701 patients in the Swedish Obese Subjects (SOS) study who had type 2 diabetes were recently published in Diabetes Care.
The results illustrate the “connection between glucose control and cancer prevention” and suggest that “among patients with type 2 diabetes, many cancer cases are preventable,” lead author Kajsa Sjöholm, PhD, associate professor of molecular medicine at Sahlgrenska Academy, University of Gothenburg (Sweden), said in a press release from the university.
“The global epidemic of both obesity and diabetes leads to an increased risk of cancer, as well as an increased risk of premature death,” added senior author Magdalena Taube, PhD, associate professor of molecular medicine in the same academy.
“It has been estimated that, over the next 10-15 years, obesity may cause more cancer cases than smoking in several countries,” she noted. Therefore, “strategies are needed to prevent this development, and our results can provide vital guidance for prevention of cancer in patients with obesity and type 2 diabetes.”
Durable diabetes remission seems key
Two-thirds of the patients in the bariatric surgery group had vertical banded gastroplasty (65%), and the rest had adjustable or nonadjustable gastric banding (18%) or gastric bypass (17%).
Each type of bariatric surgery was associated with higher diabetes remission rates, compared with usual care, in a previous study by these researchers, Dr. Taube said in an interview.
“In our present study,” she added, “we observed a nonsignificant trend, where patients with obesity and type 2 diabetes in the highest weight loss tertile (average weight loss, –44.8 kg) had somewhat lower risk of cancer compared to the lowest tertile [average weight loss, –14.9 kg].”
This might suggest, Dr. Taube continued, that with respect to cancer risk, surgery techniques resulting in greater weight loss (for example, Roux-en-Y gastric bypass and sleeve gastrectomy) should be recommended in patients with obesity and diabetes.
“However, it should also be noted that long-term diabetes remission seems imperative for cancer risk reduction,” she said, “and in a recent meta-analysis by McTigue et al., published in JAMA Surgery, it was shown that patients who had Roux-en-Y gastric bypass had greater weight loss, a slightly higher type 2 diabetes remission rate, less type 2 diabetes relapse, and better long-term glycemic control, compared with those who had sleeve gastrectomy.
“The observed cancer reduction in women with obesity and type 2 diabetes is in line with previous findings showing that cancer risk reduction following bariatric surgery in patients with obesity is more marked among women than men,” Dr. Taube noted. This may be because cancer rates are higher in women with diabetes than in men with diabetes, and common cancer types associated with obesity are female specific.
The main cancers in women were breast cancer, followed by endometrial and colorectal cancer. In men, the main cancers were colorectal, prostate, and urothelial/malignant skin cancer.
Study design and findings
It is well established that obesity is a risk factor for 13 types of cancer, and some of these cancers (liver, pancreatic, endometrial, colon and rectal, breast, and bladder) may be related to type 2 diabetes. And bariatric surgery has been shown to reduce cancer risk in patients with obesity.
However, it is not clear how bariatric surgery may affect cancer risk in patients with obesity and type 2 diabetes.
To study this, the researchers examined data from 393 patients who underwent bariatric surgery and 308 patients who received usual obesity treatment, who were part of the SOS study.
The SOS study enrolled men with a body mass index of at least 34 kg/m2, and women with a BMI of at least 38 kg/m2 who were aged 37-60 years between 1987 and 2001.
The current study outcome – cancer incidence in patients with obesity and type 2 diabetes – was not a prespecified outcome
The intervention groups were matched on 18 variables, including age, sex, serum insulin, alcohol, education, and smoking.
At baseline, the patients had a mean age of about 49 and 60% were women. They had a mean BMI of about 42 and a mean hemoglobin A1c of 7.8%.
On average, patients in the surgery group had lost 27.5 kg and 22.7 kg, and patients in the usual care group had lost 3.2 kg and 4.8 kg, at 2 years and 10 years, respectively.
During a median follow-up of 21 years, there were 74 incident cancers in the control group and 68 cancers in the bariatric surgery group.
The risk of cancer during follow-up was 37% lower in the surgery group than in the usual care group, after multivariable adjustment (adjusted hazard ratio, 0.63; 95% confidence interval, 0.44-0.89; P = .008).
A deeper dive showed that there were 86 incident cancers in women and 56 cancers in men. The risk of cancer was significantly lower in women who had bariatric surgery, compared with those who had usual care (aHR, 0.58; 95% CI 0.38-0.90, P = .016). However, the risk of cancer was not significantly lower in men who had bariatric surgery versus those who had usual care (aHR 0.79, 95% CI, 0.46-1.38; P = .413).
Diabetes remission at 10 years was associated with a 60% reduced cancer incidence (aHR, 0.40; 95% CI, 0.22-0.74, P = .003).
The study was funded by the Swedish state (under an agreement between the Swedish government and the county councils), the Swedish Research Council, the Novo Nordisk Foundation, the Swedish Heart-Lung Foundation, and the Swedish Diabetes Foundation. One author received consulting fees from Johnson & Johnson. The other authors had no relevant financial disclosures.
A version of this article first appeared on Medscape.com.
FROM DIABETES CARE
Make cholesterol control a greater priority in diabetes
, a new population-based study in Finland suggests.
In the study, recently published online in Scientific Reports , the authors showed that LDL-C control and statin prescriptions remain suboptimal in this patient population in clinical practice.
They identified four 5-year trajectories of LDL-C along with concurrent levels of statin treatment. The percentages of patients in each group were:
- Moderately stable LDL-C: 2.3 mmol/L (90 mg/dL): 86%
- High stable LDL-C: 3.9 mmol/L (152 mg/dL): 7.7%
- Decreasing LDL-C: 3.8%
- Increasing LDL-C: 2.5%
“The second-largest group consisted of predominantly untreated patients (7.7%) with alarmingly ‘high stable’ LDL-C levels around 3.9 mmol/L,” the researchers noted.
And among patients with “increasing” LDL-C cholesterol, statin treatment “declined drastically.”
Moreover, 42% of patients had no statins prescribed at the end of follow-up.
These findings show that “efforts to control LDL-C should be increased – especially in patients with continuously elevated levels – by initiating and intensifying statin treatment earlier and reinitiating the treatment after discontinuation, if possible,” lead author Laura Inglin, MPH, told this news organization.
Discuss risks vs. benefits of statins with patients
Patients may not understand the benefits versus potential side effects of statins, said Ms. Inglin, of the Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio.
To improve management of cholesterol levels, she said, “clinician-patient discussions are crucial, addressing risk/benefits and treatment goals, and offering reputable sources” of information about statins.
When patients discontinue statin treatment, Ms. Inglin continued, “physicians should try to reinitiate another statin or to lower the dose if possible, following guidelines on how to do that,” as other research has reported that more than 70% of patients who stopped a statin because of side effects tolerated it when it was restarted.
The study also identified gender differences, she continued. Compared with men, women had significantly higher average LDL-C levels, but were less likely to be prescribed a statin or were prescribed a lower-dose statin, and they were more likely to discontinue statin therapy.
Four LDL-C trajectories with statin treatment differences
Suboptimal lipid profiles, especially elevated LDL-C, are strongly associated with atherosclerotic CVD in individuals with type 2 diabetes, Ms. Inglin and colleagues write.
“To prevent or at least delay complications, regular follow-up visits and good control of A1c, LDL-C, blood pressure, and other CVD risk factors are vital in diabetes management,” they continued. “Guidelines have consistently identified statins as the principal lipid-lowering therapy, recommended particularly at moderate- to high-intensity.”
The researchers aimed to identify LDL-C level trajectories and concomitant statin treatment in patients with type 2 diabetes.
They identified 8,592 patients – 4,622 men (54%) and 3,970 women (46%) – with type 2 diabetes seen by primary care physicians or specialists in North Karelia, Eastern Finland, during 2011-2017.
As with other international guidelines, the Finnish Current Care Guideline recommended assessing LDL-C levels every 1-3 years in patients with type 2 diabetes, with LDL-C treatment targets of < 2.5 mmol/L (< 100 mg/dL) for those at high CVD risk due to diabetes, and targets of < 1.8 mmol/L (< 70 mg/dL) or a 50% reduction from baseline in those at very high CVD risk due to additional risk factors.
At baseline, on average, men in the current study were aged 66 years and had had diabetes for 8 years; 60% were receiving a statin and 56% had an LDL-C < 2.5 mmol/L.
Women were, on average, age 69 years and had had diabetes for 8 years; 56% were receiving a statin and 51% had an LDL-C < 2.5 mmol/L.
The researchers identified the four distinct LDL-C trajectories, each with differences in statin treatment.
In the “moderate-stable” LDL-C group, 67% of men and 64% of women were receiving a statin, and the rates of high-intensity statin increased in both men and women.
In the “high-stable” LDL-C group, rates of statin use decreased from 42% to 27% among men and from 34% to 23% among women.
In the “decreasing” LDL-C group, the proportion of patients who received a statin increased; the percentage of patients who received a high-intensity statin also increased among men (6.2% to 29%) and women (7.7% to 14%).
In the “increasing” LDL-C group, the percentage of patients receiving a statin decreased from more than 64% to less than 43%.
“Physicians should increase efforts to achieve the LDL-C treatment targets – especially in the patient group with constantly elevated LDL-C levels – by paying attention to earlier initiation of statin treatment, intensification of treatments when necessary, and reinitiating if possible,” the researchers reiterated.
“The results of our study may support physicians to identify patients who need to be monitored more closely beyond a single time point measurement,” they concluded.
The study was partly funded by the Strategic Research Council of the Academy of Finland (project IMPRO), the Finnish Diabetes Association, and the Research Committee of the Kuopio University Hospital Catchment Area for the State Research Funding (project QCARE). The authors have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
, a new population-based study in Finland suggests.
In the study, recently published online in Scientific Reports , the authors showed that LDL-C control and statin prescriptions remain suboptimal in this patient population in clinical practice.
They identified four 5-year trajectories of LDL-C along with concurrent levels of statin treatment. The percentages of patients in each group were:
- Moderately stable LDL-C: 2.3 mmol/L (90 mg/dL): 86%
- High stable LDL-C: 3.9 mmol/L (152 mg/dL): 7.7%
- Decreasing LDL-C: 3.8%
- Increasing LDL-C: 2.5%
“The second-largest group consisted of predominantly untreated patients (7.7%) with alarmingly ‘high stable’ LDL-C levels around 3.9 mmol/L,” the researchers noted.
And among patients with “increasing” LDL-C cholesterol, statin treatment “declined drastically.”
Moreover, 42% of patients had no statins prescribed at the end of follow-up.
These findings show that “efforts to control LDL-C should be increased – especially in patients with continuously elevated levels – by initiating and intensifying statin treatment earlier and reinitiating the treatment after discontinuation, if possible,” lead author Laura Inglin, MPH, told this news organization.
Discuss risks vs. benefits of statins with patients
Patients may not understand the benefits versus potential side effects of statins, said Ms. Inglin, of the Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio.
To improve management of cholesterol levels, she said, “clinician-patient discussions are crucial, addressing risk/benefits and treatment goals, and offering reputable sources” of information about statins.
When patients discontinue statin treatment, Ms. Inglin continued, “physicians should try to reinitiate another statin or to lower the dose if possible, following guidelines on how to do that,” as other research has reported that more than 70% of patients who stopped a statin because of side effects tolerated it when it was restarted.
The study also identified gender differences, she continued. Compared with men, women had significantly higher average LDL-C levels, but were less likely to be prescribed a statin or were prescribed a lower-dose statin, and they were more likely to discontinue statin therapy.
Four LDL-C trajectories with statin treatment differences
Suboptimal lipid profiles, especially elevated LDL-C, are strongly associated with atherosclerotic CVD in individuals with type 2 diabetes, Ms. Inglin and colleagues write.
“To prevent or at least delay complications, regular follow-up visits and good control of A1c, LDL-C, blood pressure, and other CVD risk factors are vital in diabetes management,” they continued. “Guidelines have consistently identified statins as the principal lipid-lowering therapy, recommended particularly at moderate- to high-intensity.”
The researchers aimed to identify LDL-C level trajectories and concomitant statin treatment in patients with type 2 diabetes.
They identified 8,592 patients – 4,622 men (54%) and 3,970 women (46%) – with type 2 diabetes seen by primary care physicians or specialists in North Karelia, Eastern Finland, during 2011-2017.
As with other international guidelines, the Finnish Current Care Guideline recommended assessing LDL-C levels every 1-3 years in patients with type 2 diabetes, with LDL-C treatment targets of < 2.5 mmol/L (< 100 mg/dL) for those at high CVD risk due to diabetes, and targets of < 1.8 mmol/L (< 70 mg/dL) or a 50% reduction from baseline in those at very high CVD risk due to additional risk factors.
At baseline, on average, men in the current study were aged 66 years and had had diabetes for 8 years; 60% were receiving a statin and 56% had an LDL-C < 2.5 mmol/L.
Women were, on average, age 69 years and had had diabetes for 8 years; 56% were receiving a statin and 51% had an LDL-C < 2.5 mmol/L.
The researchers identified the four distinct LDL-C trajectories, each with differences in statin treatment.
In the “moderate-stable” LDL-C group, 67% of men and 64% of women were receiving a statin, and the rates of high-intensity statin increased in both men and women.
In the “high-stable” LDL-C group, rates of statin use decreased from 42% to 27% among men and from 34% to 23% among women.
In the “decreasing” LDL-C group, the proportion of patients who received a statin increased; the percentage of patients who received a high-intensity statin also increased among men (6.2% to 29%) and women (7.7% to 14%).
In the “increasing” LDL-C group, the percentage of patients receiving a statin decreased from more than 64% to less than 43%.
“Physicians should increase efforts to achieve the LDL-C treatment targets – especially in the patient group with constantly elevated LDL-C levels – by paying attention to earlier initiation of statin treatment, intensification of treatments when necessary, and reinitiating if possible,” the researchers reiterated.
“The results of our study may support physicians to identify patients who need to be monitored more closely beyond a single time point measurement,” they concluded.
The study was partly funded by the Strategic Research Council of the Academy of Finland (project IMPRO), the Finnish Diabetes Association, and the Research Committee of the Kuopio University Hospital Catchment Area for the State Research Funding (project QCARE). The authors have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
, a new population-based study in Finland suggests.
In the study, recently published online in Scientific Reports , the authors showed that LDL-C control and statin prescriptions remain suboptimal in this patient population in clinical practice.
They identified four 5-year trajectories of LDL-C along with concurrent levels of statin treatment. The percentages of patients in each group were:
- Moderately stable LDL-C: 2.3 mmol/L (90 mg/dL): 86%
- High stable LDL-C: 3.9 mmol/L (152 mg/dL): 7.7%
- Decreasing LDL-C: 3.8%
- Increasing LDL-C: 2.5%
“The second-largest group consisted of predominantly untreated patients (7.7%) with alarmingly ‘high stable’ LDL-C levels around 3.9 mmol/L,” the researchers noted.
And among patients with “increasing” LDL-C cholesterol, statin treatment “declined drastically.”
Moreover, 42% of patients had no statins prescribed at the end of follow-up.
These findings show that “efforts to control LDL-C should be increased – especially in patients with continuously elevated levels – by initiating and intensifying statin treatment earlier and reinitiating the treatment after discontinuation, if possible,” lead author Laura Inglin, MPH, told this news organization.
Discuss risks vs. benefits of statins with patients
Patients may not understand the benefits versus potential side effects of statins, said Ms. Inglin, of the Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio.
To improve management of cholesterol levels, she said, “clinician-patient discussions are crucial, addressing risk/benefits and treatment goals, and offering reputable sources” of information about statins.
When patients discontinue statin treatment, Ms. Inglin continued, “physicians should try to reinitiate another statin or to lower the dose if possible, following guidelines on how to do that,” as other research has reported that more than 70% of patients who stopped a statin because of side effects tolerated it when it was restarted.
The study also identified gender differences, she continued. Compared with men, women had significantly higher average LDL-C levels, but were less likely to be prescribed a statin or were prescribed a lower-dose statin, and they were more likely to discontinue statin therapy.
Four LDL-C trajectories with statin treatment differences
Suboptimal lipid profiles, especially elevated LDL-C, are strongly associated with atherosclerotic CVD in individuals with type 2 diabetes, Ms. Inglin and colleagues write.
“To prevent or at least delay complications, regular follow-up visits and good control of A1c, LDL-C, blood pressure, and other CVD risk factors are vital in diabetes management,” they continued. “Guidelines have consistently identified statins as the principal lipid-lowering therapy, recommended particularly at moderate- to high-intensity.”
The researchers aimed to identify LDL-C level trajectories and concomitant statin treatment in patients with type 2 diabetes.
They identified 8,592 patients – 4,622 men (54%) and 3,970 women (46%) – with type 2 diabetes seen by primary care physicians or specialists in North Karelia, Eastern Finland, during 2011-2017.
As with other international guidelines, the Finnish Current Care Guideline recommended assessing LDL-C levels every 1-3 years in patients with type 2 diabetes, with LDL-C treatment targets of < 2.5 mmol/L (< 100 mg/dL) for those at high CVD risk due to diabetes, and targets of < 1.8 mmol/L (< 70 mg/dL) or a 50% reduction from baseline in those at very high CVD risk due to additional risk factors.
At baseline, on average, men in the current study were aged 66 years and had had diabetes for 8 years; 60% were receiving a statin and 56% had an LDL-C < 2.5 mmol/L.
Women were, on average, age 69 years and had had diabetes for 8 years; 56% were receiving a statin and 51% had an LDL-C < 2.5 mmol/L.
The researchers identified the four distinct LDL-C trajectories, each with differences in statin treatment.
In the “moderate-stable” LDL-C group, 67% of men and 64% of women were receiving a statin, and the rates of high-intensity statin increased in both men and women.
In the “high-stable” LDL-C group, rates of statin use decreased from 42% to 27% among men and from 34% to 23% among women.
In the “decreasing” LDL-C group, the proportion of patients who received a statin increased; the percentage of patients who received a high-intensity statin also increased among men (6.2% to 29%) and women (7.7% to 14%).
In the “increasing” LDL-C group, the percentage of patients receiving a statin decreased from more than 64% to less than 43%.
“Physicians should increase efforts to achieve the LDL-C treatment targets – especially in the patient group with constantly elevated LDL-C levels – by paying attention to earlier initiation of statin treatment, intensification of treatments when necessary, and reinitiating if possible,” the researchers reiterated.
“The results of our study may support physicians to identify patients who need to be monitored more closely beyond a single time point measurement,” they concluded.
The study was partly funded by the Strategic Research Council of the Academy of Finland (project IMPRO), the Finnish Diabetes Association, and the Research Committee of the Kuopio University Hospital Catchment Area for the State Research Funding (project QCARE). The authors have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM SCIENTIFIC REPORTS
Penicillin slows latent rheumatic heart disease progression
In a randomized controlled trial of close to 1,000 Ugandan children and youth with latent rheumatic heart disease (RHD), those who received monthly injections of penicillin G benzathine for 2 years had less disease progression than those who did not.
RHD, a valvular heart disease caused by rheumatic fever that develops after untreated Streptococcus pyogenes infection, is the most common acquired cardiovascular disease among children and young adults.
“It is clear that secondary antibiotic prophylaxis can improve outcomes for children with echo-detected rheumatic RHD,” co–lead author of the study, Andrea Z. Beaton, MD, said in an interview.
“There is huge potential here, but we are not quite ready to advocate for this strategy as a broad public health approach,” said Dr. Beaton, a pediatric cardiologist at Cincinnati Children’s Hospital Medical Center.
“We need to understand more the practical translation of this strategy to a low-resourced public health system at scale, improve [penicillin G benzathine] supply, and improve community and health care worker knowledge of this disease.”
Dr. Beaton presented the findings at the American Heart Association scientific sessions, and the study was simultaneously published in the New England Journal of Medicine on Nov. 13, 2021.
The GOAL trial – or the Gwoko Adunu pa Lutino trial, meaning “protect the heart of a child” – screened 102,200 children and adolescents aged 5-17. Of these kids and teenagers, 926 (0.9%) were diagnosed with latent RHD based on a confirmatory electrocardiogram.
“For now, I would say, if you are screening, then kids found to have latent RHD should be put on prophylaxis,” Dr. Beaton said.
“I think this is also a powerful call for more research [severely lacking in RHD],” to improve risk stratification, determine how to implement screening and prophylaxis programs, and develop new and better approaches for RHD prevention and care.
“This essential trial partially addresses the clinical equipoise that has developed regarding penicillin administration in latent RHD,” said Gabriele Rossi, MD, MPH, who was not involved with this research.
It showed that, out of the final 818 participants included in the modified intention-to-treat analysis, a total of 3 (0.8%) in the prophylaxis group had echocardiographic progression at 2 years, compared with 33 participants (8.2%) in the control group (risk difference, −7.5 percentage points; 95% confidence interval, −10.2 to −4.7; P < .001).
“This is a significant difference,” Dr. Rossi, from Médecins Sans Frontières (Doctors Without Borders), Brussels, said in an interview, noting that, however, it is not known what happens after 2 years.
The authors estimated that 13 children or adolescents with latent rheumatic heart disease would need to be treated to prevent disease progression in one person at 2 years, which is “acceptable,” he continued.
However, “screening, diagnosis, clinical follow-up, treatment, and program management [would] require substantial strengthening of health systems and the workforce, which is still far from being realizable in many African and low-income country settings,” Dr. Rossi noted.
Related study in Italy
Previously, Dr. Rossi and colleagues conducted a trial, published in 2019, that showed it was feasible to screen for asymptomatic RHD among refugee/migrant children and youths in Rome.
From February 2016 to January 2018, they screened more than 650 refugee/migrant children and adolescents who were younger than 18. They came largely from Egypt (65%) but also from 22 other countries and were often unaccompanied or with just one parent.
The number needed to screen was 5 to identify a child/youth with borderline RHD and around 40 to identify a child/youth with definite RHD.
Dr. Rossi noted that local resurgences of RHD have also been also documented in high-income countries such as Europe, Australia, New Zealand, Canada, and the United States, often among disadvantaged indigenous people, as described in a 2018 Letter to the Editor in the New England Journal of Medicine.
Dr. Beaton noted that a review of 10-year data (2008-2018) from 22 U.S. pediatric institutions showed that in the United States the prevalence of RHD “is higher in immigrant children from RHD endemic areas, but because of total numbers, more RHD cases than not are domestic.” Children living in more deprived communities are at risk for more severe disease, and the burden in U.S. territories is also quite high.
Screening and secondary prophylaxis
The aim of the current GOAL study was to evaluate if screening and treatment with penicillin G benzathine could detect and prevent progression of latent rheumatic heart disease in 5- to 17-year-olds living in Gulu, Uganda. The trial was conducted from July 2018 to October 2020.
“School education and community sensitization was done prior to the trial,” through radio shows or school-based education, Dr. Beaton explained. About 99% of the children/adolescents/families agreed to be screened.
The group has been conducting echo screening research in Uganda for 10 years, she noted. They have developed peer group and case manager strategies to aid participant retention, as they describe in an article about the study protocol.
The screening echocardiograms were interpreted by about 30 providers and four cardiologists reviewed confirmatory echocardiograms.
Two participants in the prophylaxis group had serious adverse events that were attributable to receipt of prophylaxis, including one episode of a mild anaphylactic reaction (representing <0.1% of all administered doses of prophylaxis).
Once children and adolescents have moderate/severe RHD, there is not much that can be done in lower- and middle-income countries, where surgery for this is uncommon, Dr. Beaton explained. Around 30% of children and adolescents with this condition who come to clinical attention in Uganda die within 9 months.
Further research
Dr. Beaton and colleagues have just started a trial to investigate the burden of RHD among Native American youth, which has not been studied since the 1970s.
They also have an ongoing study looking at the efficacy of a pragmatic, community-based sore throat program to prevent RHD.
“Unfortunately, this strategy has not worked well in low-to-middle income countries, for a variety of reasons so far,” Dr. Beaton noted, and the cost-effectiveness of this preventive strategy is questionable.
The trial was supported by the Thrasher Research Fund, Gift of Life International, Children’s National Hospital Foundation (Zachary Blumenfeld Fund and Race for Every Child [Team Jocelyn]), the Elias-Ginsburg Family, Wiley Rein, Philips Foundation, AT&T Foundation, Heart Healers International, the Karp Family Foundation, Huron Philanthropies, and the Cincinnati Children’s Hospital Heart Institute Research Core. Dr. Beaton and Dr. Rossi disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
In a randomized controlled trial of close to 1,000 Ugandan children and youth with latent rheumatic heart disease (RHD), those who received monthly injections of penicillin G benzathine for 2 years had less disease progression than those who did not.
RHD, a valvular heart disease caused by rheumatic fever that develops after untreated Streptococcus pyogenes infection, is the most common acquired cardiovascular disease among children and young adults.
“It is clear that secondary antibiotic prophylaxis can improve outcomes for children with echo-detected rheumatic RHD,” co–lead author of the study, Andrea Z. Beaton, MD, said in an interview.
“There is huge potential here, but we are not quite ready to advocate for this strategy as a broad public health approach,” said Dr. Beaton, a pediatric cardiologist at Cincinnati Children’s Hospital Medical Center.
“We need to understand more the practical translation of this strategy to a low-resourced public health system at scale, improve [penicillin G benzathine] supply, and improve community and health care worker knowledge of this disease.”
Dr. Beaton presented the findings at the American Heart Association scientific sessions, and the study was simultaneously published in the New England Journal of Medicine on Nov. 13, 2021.
The GOAL trial – or the Gwoko Adunu pa Lutino trial, meaning “protect the heart of a child” – screened 102,200 children and adolescents aged 5-17. Of these kids and teenagers, 926 (0.9%) were diagnosed with latent RHD based on a confirmatory electrocardiogram.
“For now, I would say, if you are screening, then kids found to have latent RHD should be put on prophylaxis,” Dr. Beaton said.
“I think this is also a powerful call for more research [severely lacking in RHD],” to improve risk stratification, determine how to implement screening and prophylaxis programs, and develop new and better approaches for RHD prevention and care.
“This essential trial partially addresses the clinical equipoise that has developed regarding penicillin administration in latent RHD,” said Gabriele Rossi, MD, MPH, who was not involved with this research.
It showed that, out of the final 818 participants included in the modified intention-to-treat analysis, a total of 3 (0.8%) in the prophylaxis group had echocardiographic progression at 2 years, compared with 33 participants (8.2%) in the control group (risk difference, −7.5 percentage points; 95% confidence interval, −10.2 to −4.7; P < .001).
“This is a significant difference,” Dr. Rossi, from Médecins Sans Frontières (Doctors Without Borders), Brussels, said in an interview, noting that, however, it is not known what happens after 2 years.
The authors estimated that 13 children or adolescents with latent rheumatic heart disease would need to be treated to prevent disease progression in one person at 2 years, which is “acceptable,” he continued.
However, “screening, diagnosis, clinical follow-up, treatment, and program management [would] require substantial strengthening of health systems and the workforce, which is still far from being realizable in many African and low-income country settings,” Dr. Rossi noted.
Related study in Italy
Previously, Dr. Rossi and colleagues conducted a trial, published in 2019, that showed it was feasible to screen for asymptomatic RHD among refugee/migrant children and youths in Rome.
From February 2016 to January 2018, they screened more than 650 refugee/migrant children and adolescents who were younger than 18. They came largely from Egypt (65%) but also from 22 other countries and were often unaccompanied or with just one parent.
The number needed to screen was 5 to identify a child/youth with borderline RHD and around 40 to identify a child/youth with definite RHD.
Dr. Rossi noted that local resurgences of RHD have also been also documented in high-income countries such as Europe, Australia, New Zealand, Canada, and the United States, often among disadvantaged indigenous people, as described in a 2018 Letter to the Editor in the New England Journal of Medicine.
Dr. Beaton noted that a review of 10-year data (2008-2018) from 22 U.S. pediatric institutions showed that in the United States the prevalence of RHD “is higher in immigrant children from RHD endemic areas, but because of total numbers, more RHD cases than not are domestic.” Children living in more deprived communities are at risk for more severe disease, and the burden in U.S. territories is also quite high.
Screening and secondary prophylaxis
The aim of the current GOAL study was to evaluate if screening and treatment with penicillin G benzathine could detect and prevent progression of latent rheumatic heart disease in 5- to 17-year-olds living in Gulu, Uganda. The trial was conducted from July 2018 to October 2020.
“School education and community sensitization was done prior to the trial,” through radio shows or school-based education, Dr. Beaton explained. About 99% of the children/adolescents/families agreed to be screened.
The group has been conducting echo screening research in Uganda for 10 years, she noted. They have developed peer group and case manager strategies to aid participant retention, as they describe in an article about the study protocol.
The screening echocardiograms were interpreted by about 30 providers and four cardiologists reviewed confirmatory echocardiograms.
Two participants in the prophylaxis group had serious adverse events that were attributable to receipt of prophylaxis, including one episode of a mild anaphylactic reaction (representing <0.1% of all administered doses of prophylaxis).
Once children and adolescents have moderate/severe RHD, there is not much that can be done in lower- and middle-income countries, where surgery for this is uncommon, Dr. Beaton explained. Around 30% of children and adolescents with this condition who come to clinical attention in Uganda die within 9 months.
Further research
Dr. Beaton and colleagues have just started a trial to investigate the burden of RHD among Native American youth, which has not been studied since the 1970s.
They also have an ongoing study looking at the efficacy of a pragmatic, community-based sore throat program to prevent RHD.
“Unfortunately, this strategy has not worked well in low-to-middle income countries, for a variety of reasons so far,” Dr. Beaton noted, and the cost-effectiveness of this preventive strategy is questionable.
The trial was supported by the Thrasher Research Fund, Gift of Life International, Children’s National Hospital Foundation (Zachary Blumenfeld Fund and Race for Every Child [Team Jocelyn]), the Elias-Ginsburg Family, Wiley Rein, Philips Foundation, AT&T Foundation, Heart Healers International, the Karp Family Foundation, Huron Philanthropies, and the Cincinnati Children’s Hospital Heart Institute Research Core. Dr. Beaton and Dr. Rossi disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
In a randomized controlled trial of close to 1,000 Ugandan children and youth with latent rheumatic heart disease (RHD), those who received monthly injections of penicillin G benzathine for 2 years had less disease progression than those who did not.
RHD, a valvular heart disease caused by rheumatic fever that develops after untreated Streptococcus pyogenes infection, is the most common acquired cardiovascular disease among children and young adults.
“It is clear that secondary antibiotic prophylaxis can improve outcomes for children with echo-detected rheumatic RHD,” co–lead author of the study, Andrea Z. Beaton, MD, said in an interview.
“There is huge potential here, but we are not quite ready to advocate for this strategy as a broad public health approach,” said Dr. Beaton, a pediatric cardiologist at Cincinnati Children’s Hospital Medical Center.
“We need to understand more the practical translation of this strategy to a low-resourced public health system at scale, improve [penicillin G benzathine] supply, and improve community and health care worker knowledge of this disease.”
Dr. Beaton presented the findings at the American Heart Association scientific sessions, and the study was simultaneously published in the New England Journal of Medicine on Nov. 13, 2021.
The GOAL trial – or the Gwoko Adunu pa Lutino trial, meaning “protect the heart of a child” – screened 102,200 children and adolescents aged 5-17. Of these kids and teenagers, 926 (0.9%) were diagnosed with latent RHD based on a confirmatory electrocardiogram.
“For now, I would say, if you are screening, then kids found to have latent RHD should be put on prophylaxis,” Dr. Beaton said.
“I think this is also a powerful call for more research [severely lacking in RHD],” to improve risk stratification, determine how to implement screening and prophylaxis programs, and develop new and better approaches for RHD prevention and care.
“This essential trial partially addresses the clinical equipoise that has developed regarding penicillin administration in latent RHD,” said Gabriele Rossi, MD, MPH, who was not involved with this research.
It showed that, out of the final 818 participants included in the modified intention-to-treat analysis, a total of 3 (0.8%) in the prophylaxis group had echocardiographic progression at 2 years, compared with 33 participants (8.2%) in the control group (risk difference, −7.5 percentage points; 95% confidence interval, −10.2 to −4.7; P < .001).
“This is a significant difference,” Dr. Rossi, from Médecins Sans Frontières (Doctors Without Borders), Brussels, said in an interview, noting that, however, it is not known what happens after 2 years.
The authors estimated that 13 children or adolescents with latent rheumatic heart disease would need to be treated to prevent disease progression in one person at 2 years, which is “acceptable,” he continued.
However, “screening, diagnosis, clinical follow-up, treatment, and program management [would] require substantial strengthening of health systems and the workforce, which is still far from being realizable in many African and low-income country settings,” Dr. Rossi noted.
Related study in Italy
Previously, Dr. Rossi and colleagues conducted a trial, published in 2019, that showed it was feasible to screen for asymptomatic RHD among refugee/migrant children and youths in Rome.
From February 2016 to January 2018, they screened more than 650 refugee/migrant children and adolescents who were younger than 18. They came largely from Egypt (65%) but also from 22 other countries and were often unaccompanied or with just one parent.
The number needed to screen was 5 to identify a child/youth with borderline RHD and around 40 to identify a child/youth with definite RHD.
Dr. Rossi noted that local resurgences of RHD have also been also documented in high-income countries such as Europe, Australia, New Zealand, Canada, and the United States, often among disadvantaged indigenous people, as described in a 2018 Letter to the Editor in the New England Journal of Medicine.
Dr. Beaton noted that a review of 10-year data (2008-2018) from 22 U.S. pediatric institutions showed that in the United States the prevalence of RHD “is higher in immigrant children from RHD endemic areas, but because of total numbers, more RHD cases than not are domestic.” Children living in more deprived communities are at risk for more severe disease, and the burden in U.S. territories is also quite high.
Screening and secondary prophylaxis
The aim of the current GOAL study was to evaluate if screening and treatment with penicillin G benzathine could detect and prevent progression of latent rheumatic heart disease in 5- to 17-year-olds living in Gulu, Uganda. The trial was conducted from July 2018 to October 2020.
“School education and community sensitization was done prior to the trial,” through radio shows or school-based education, Dr. Beaton explained. About 99% of the children/adolescents/families agreed to be screened.
The group has been conducting echo screening research in Uganda for 10 years, she noted. They have developed peer group and case manager strategies to aid participant retention, as they describe in an article about the study protocol.
The screening echocardiograms were interpreted by about 30 providers and four cardiologists reviewed confirmatory echocardiograms.
Two participants in the prophylaxis group had serious adverse events that were attributable to receipt of prophylaxis, including one episode of a mild anaphylactic reaction (representing <0.1% of all administered doses of prophylaxis).
Once children and adolescents have moderate/severe RHD, there is not much that can be done in lower- and middle-income countries, where surgery for this is uncommon, Dr. Beaton explained. Around 30% of children and adolescents with this condition who come to clinical attention in Uganda die within 9 months.
Further research
Dr. Beaton and colleagues have just started a trial to investigate the burden of RHD among Native American youth, which has not been studied since the 1970s.
They also have an ongoing study looking at the efficacy of a pragmatic, community-based sore throat program to prevent RHD.
“Unfortunately, this strategy has not worked well in low-to-middle income countries, for a variety of reasons so far,” Dr. Beaton noted, and the cost-effectiveness of this preventive strategy is questionable.
The trial was supported by the Thrasher Research Fund, Gift of Life International, Children’s National Hospital Foundation (Zachary Blumenfeld Fund and Race for Every Child [Team Jocelyn]), the Elias-Ginsburg Family, Wiley Rein, Philips Foundation, AT&T Foundation, Heart Healers International, the Karp Family Foundation, Huron Philanthropies, and the Cincinnati Children’s Hospital Heart Institute Research Core. Dr. Beaton and Dr. Rossi disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM AHA 2021
Firefighters’ blood pressure surges when they are called to action
In response to a 911 alert or page, firefighters’ systolic and diastolic blood pressure surges and their heart rate accelerates, with a similar response whether the call is for a fire or medical emergency, a small study suggests.
On average, the 41 firefighters monitored in the study, who were middle-aged and overweight, had a 9% increase in systolic blood pressure when called to a fire, a 9% increase in diastolic blood pressure when called to a medical emergency, and a 16% increase in heart rate for both types of calls.
Senior study author Deborah Feairheller, PhD, presented these results at the virtual American Heart Association scientific sessions.
Firefighters have a higher prevalence of cardiovascular disease (CVD) than that of the general population, explained Dr. Feairheller, director of the Hypertension and Endothelial Function with Aerobic and Resistance Training (HEART) Lab and clinical associate professor of kinesiology at the University of New Hampshire, Durham.
More than 50% of firefighter deaths in the line of duty are from CVD, she noted. Moreover, almost 75% of firefighters have hypertension and fewer than 25% have it under control.
The study findings show that all emergency and first responders “should know what their typical blood pressure level is and be aware of how it fluctuates,” Dr. Feairheller said in a press release from the AHA. “Most important, if they have high blood pressure, they should make sure it is well controlled,” she said.
“I really hope that fire departments everywhere see these data, rise to the occasion, and advocate for BP awareness in their crews,” Dr. Feairheller, a volunteer firefighter, said in an interview.
“I do think this has value to any occupation that wears a pager,” she added. “Clinicians, physicians, other emergency responders, all of those occupations are stressful and could place people at risk if they have undiagnosed or uncontrolled hypertension.”
Invited to comment, Comilla Sasson, MD, PhD, an emergency department physician who was not involved with this research, said in an interview that she saw parallels between stress experienced by firefighters and, for example, emergency department physicians.
The transient increases in BP, both systolic and diastolic, along with the heart rate are likely due to the body’s natural fight or flight response to an emergency call, including increases in epinephrine and cortisol, said Dr. Sasson, vice president of science and innovation for emergency cardiovascular care at the American Heart Association.
“The thing that is most interesting to me,” said Dr. Sasson, who can be subject to a series of high-stress situations on a shift, such as multiple trauma victims, a stroke victim, or a person in cardiac arrest, is “what is the cumulative impact of this over time?”
She said she wonders if “having to be ‘ready to go’ at any time, along with disruptions in sleep/wake schedules, and poorer eating and working-out habits when you are on shift, has long-term sequelae on the body.”
Stress-related surges in blood pressure “could be a reason for worse health outcomes in this group,” Dr. Sasson said, adding that this needs to be investigated further.
Firefighters with high normal BP, high BMI
Dr. Feairheller and colleagues recruited 41 volunteer and employee firefighters from suburban Philadelphia and Dover, N.H.
On average, the 37 men and 4 women had a mean age of 41 years, had been working as firefighters for 16.9 years, and had a mean body mass index of 30.3 kg/m2.
They wore ambulatory blood pressure monitors during an on-call work shift for at least 12 consecutive hours.
In addition to the automatic readings, the participants were instructed to prompt the machine to take a reading whenever a pager or emergency call sounded or when they felt they were entering a stressful situation.
Over the 12-hour shift, on average, participants had a blood pressure of 131/79.3 mm Hg and a heart rate of 75.7 bpm.
When they were alerted go to a fire, their blood pressure surged by 19.2/10.5 mm Hg, and their heart rate rose to 85.5 bpm.
Similarly, when they were alerted to go to a medical emergency, their blood pressure jumped up by 18.7/16.5 mm Hg and their heart rate climbed to 90.5 bpm.
The surges in blood pressure and heart rate were similar when participants were riding in the fire truck to a call or when the call turned out to be a false alarm.
What can be done?
“If we can increase awareness and identify specific risk factors in firefighters,” Dr. Feairheller said, this could “save a life of someone who spends their day saving lives and property.”
To start, “regular, in-station or home BP monitoring should be encouraged,” she said. “Firefighters should start to track their BP levels in the morning, at night, at work. Being a volunteer firefighter myself, I know the stress and anxiety and sadness and heavy work that comes with the job,” she said. “I want to be able to do what I can to help make the crews healthier.”
Dr. Sasson suggested that ways to increase awareness and improve the health of firefighters might include “counseling, appropriate breaks, possibly food service/delivery to provide better nutritional options, built-in time for exercise (gym or cardio equipment on site), and discussions about how stress can impact the body over time.”
It is important to advocate for better mental health care, because people may have PTSD, depression, substance abuse, or other mental health conditions brought on by their stressful jobs, she said.
“Also, it would be interesting to know what is the current state of health monitoring (both physical, mental, and emotional) that occurs for firefighters,” she said.
The American Heart Association funded the study. The authors and Dr. Sasson report no disclosures.
A version of this article first appeared on Medscape.com.
In response to a 911 alert or page, firefighters’ systolic and diastolic blood pressure surges and their heart rate accelerates, with a similar response whether the call is for a fire or medical emergency, a small study suggests.
On average, the 41 firefighters monitored in the study, who were middle-aged and overweight, had a 9% increase in systolic blood pressure when called to a fire, a 9% increase in diastolic blood pressure when called to a medical emergency, and a 16% increase in heart rate for both types of calls.
Senior study author Deborah Feairheller, PhD, presented these results at the virtual American Heart Association scientific sessions.
Firefighters have a higher prevalence of cardiovascular disease (CVD) than that of the general population, explained Dr. Feairheller, director of the Hypertension and Endothelial Function with Aerobic and Resistance Training (HEART) Lab and clinical associate professor of kinesiology at the University of New Hampshire, Durham.
More than 50% of firefighter deaths in the line of duty are from CVD, she noted. Moreover, almost 75% of firefighters have hypertension and fewer than 25% have it under control.
The study findings show that all emergency and first responders “should know what their typical blood pressure level is and be aware of how it fluctuates,” Dr. Feairheller said in a press release from the AHA. “Most important, if they have high blood pressure, they should make sure it is well controlled,” she said.
“I really hope that fire departments everywhere see these data, rise to the occasion, and advocate for BP awareness in their crews,” Dr. Feairheller, a volunteer firefighter, said in an interview.
“I do think this has value to any occupation that wears a pager,” she added. “Clinicians, physicians, other emergency responders, all of those occupations are stressful and could place people at risk if they have undiagnosed or uncontrolled hypertension.”
Invited to comment, Comilla Sasson, MD, PhD, an emergency department physician who was not involved with this research, said in an interview that she saw parallels between stress experienced by firefighters and, for example, emergency department physicians.
The transient increases in BP, both systolic and diastolic, along with the heart rate are likely due to the body’s natural fight or flight response to an emergency call, including increases in epinephrine and cortisol, said Dr. Sasson, vice president of science and innovation for emergency cardiovascular care at the American Heart Association.
“The thing that is most interesting to me,” said Dr. Sasson, who can be subject to a series of high-stress situations on a shift, such as multiple trauma victims, a stroke victim, or a person in cardiac arrest, is “what is the cumulative impact of this over time?”
She said she wonders if “having to be ‘ready to go’ at any time, along with disruptions in sleep/wake schedules, and poorer eating and working-out habits when you are on shift, has long-term sequelae on the body.”
Stress-related surges in blood pressure “could be a reason for worse health outcomes in this group,” Dr. Sasson said, adding that this needs to be investigated further.
Firefighters with high normal BP, high BMI
Dr. Feairheller and colleagues recruited 41 volunteer and employee firefighters from suburban Philadelphia and Dover, N.H.
On average, the 37 men and 4 women had a mean age of 41 years, had been working as firefighters for 16.9 years, and had a mean body mass index of 30.3 kg/m2.
They wore ambulatory blood pressure monitors during an on-call work shift for at least 12 consecutive hours.
In addition to the automatic readings, the participants were instructed to prompt the machine to take a reading whenever a pager or emergency call sounded or when they felt they were entering a stressful situation.
Over the 12-hour shift, on average, participants had a blood pressure of 131/79.3 mm Hg and a heart rate of 75.7 bpm.
When they were alerted go to a fire, their blood pressure surged by 19.2/10.5 mm Hg, and their heart rate rose to 85.5 bpm.
Similarly, when they were alerted to go to a medical emergency, their blood pressure jumped up by 18.7/16.5 mm Hg and their heart rate climbed to 90.5 bpm.
The surges in blood pressure and heart rate were similar when participants were riding in the fire truck to a call or when the call turned out to be a false alarm.
What can be done?
“If we can increase awareness and identify specific risk factors in firefighters,” Dr. Feairheller said, this could “save a life of someone who spends their day saving lives and property.”
To start, “regular, in-station or home BP monitoring should be encouraged,” she said. “Firefighters should start to track their BP levels in the morning, at night, at work. Being a volunteer firefighter myself, I know the stress and anxiety and sadness and heavy work that comes with the job,” she said. “I want to be able to do what I can to help make the crews healthier.”
Dr. Sasson suggested that ways to increase awareness and improve the health of firefighters might include “counseling, appropriate breaks, possibly food service/delivery to provide better nutritional options, built-in time for exercise (gym or cardio equipment on site), and discussions about how stress can impact the body over time.”
It is important to advocate for better mental health care, because people may have PTSD, depression, substance abuse, or other mental health conditions brought on by their stressful jobs, she said.
“Also, it would be interesting to know what is the current state of health monitoring (both physical, mental, and emotional) that occurs for firefighters,” she said.
The American Heart Association funded the study. The authors and Dr. Sasson report no disclosures.
A version of this article first appeared on Medscape.com.
In response to a 911 alert or page, firefighters’ systolic and diastolic blood pressure surges and their heart rate accelerates, with a similar response whether the call is for a fire or medical emergency, a small study suggests.
On average, the 41 firefighters monitored in the study, who were middle-aged and overweight, had a 9% increase in systolic blood pressure when called to a fire, a 9% increase in diastolic blood pressure when called to a medical emergency, and a 16% increase in heart rate for both types of calls.
Senior study author Deborah Feairheller, PhD, presented these results at the virtual American Heart Association scientific sessions.
Firefighters have a higher prevalence of cardiovascular disease (CVD) than that of the general population, explained Dr. Feairheller, director of the Hypertension and Endothelial Function with Aerobic and Resistance Training (HEART) Lab and clinical associate professor of kinesiology at the University of New Hampshire, Durham.
More than 50% of firefighter deaths in the line of duty are from CVD, she noted. Moreover, almost 75% of firefighters have hypertension and fewer than 25% have it under control.
The study findings show that all emergency and first responders “should know what their typical blood pressure level is and be aware of how it fluctuates,” Dr. Feairheller said in a press release from the AHA. “Most important, if they have high blood pressure, they should make sure it is well controlled,” she said.
“I really hope that fire departments everywhere see these data, rise to the occasion, and advocate for BP awareness in their crews,” Dr. Feairheller, a volunteer firefighter, said in an interview.
“I do think this has value to any occupation that wears a pager,” she added. “Clinicians, physicians, other emergency responders, all of those occupations are stressful and could place people at risk if they have undiagnosed or uncontrolled hypertension.”
Invited to comment, Comilla Sasson, MD, PhD, an emergency department physician who was not involved with this research, said in an interview that she saw parallels between stress experienced by firefighters and, for example, emergency department physicians.
The transient increases in BP, both systolic and diastolic, along with the heart rate are likely due to the body’s natural fight or flight response to an emergency call, including increases in epinephrine and cortisol, said Dr. Sasson, vice president of science and innovation for emergency cardiovascular care at the American Heart Association.
“The thing that is most interesting to me,” said Dr. Sasson, who can be subject to a series of high-stress situations on a shift, such as multiple trauma victims, a stroke victim, or a person in cardiac arrest, is “what is the cumulative impact of this over time?”
She said she wonders if “having to be ‘ready to go’ at any time, along with disruptions in sleep/wake schedules, and poorer eating and working-out habits when you are on shift, has long-term sequelae on the body.”
Stress-related surges in blood pressure “could be a reason for worse health outcomes in this group,” Dr. Sasson said, adding that this needs to be investigated further.
Firefighters with high normal BP, high BMI
Dr. Feairheller and colleagues recruited 41 volunteer and employee firefighters from suburban Philadelphia and Dover, N.H.
On average, the 37 men and 4 women had a mean age of 41 years, had been working as firefighters for 16.9 years, and had a mean body mass index of 30.3 kg/m2.
They wore ambulatory blood pressure monitors during an on-call work shift for at least 12 consecutive hours.
In addition to the automatic readings, the participants were instructed to prompt the machine to take a reading whenever a pager or emergency call sounded or when they felt they were entering a stressful situation.
Over the 12-hour shift, on average, participants had a blood pressure of 131/79.3 mm Hg and a heart rate of 75.7 bpm.
When they were alerted go to a fire, their blood pressure surged by 19.2/10.5 mm Hg, and their heart rate rose to 85.5 bpm.
Similarly, when they were alerted to go to a medical emergency, their blood pressure jumped up by 18.7/16.5 mm Hg and their heart rate climbed to 90.5 bpm.
The surges in blood pressure and heart rate were similar when participants were riding in the fire truck to a call or when the call turned out to be a false alarm.
What can be done?
“If we can increase awareness and identify specific risk factors in firefighters,” Dr. Feairheller said, this could “save a life of someone who spends their day saving lives and property.”
To start, “regular, in-station or home BP monitoring should be encouraged,” she said. “Firefighters should start to track their BP levels in the morning, at night, at work. Being a volunteer firefighter myself, I know the stress and anxiety and sadness and heavy work that comes with the job,” she said. “I want to be able to do what I can to help make the crews healthier.”
Dr. Sasson suggested that ways to increase awareness and improve the health of firefighters might include “counseling, appropriate breaks, possibly food service/delivery to provide better nutritional options, built-in time for exercise (gym or cardio equipment on site), and discussions about how stress can impact the body over time.”
It is important to advocate for better mental health care, because people may have PTSD, depression, substance abuse, or other mental health conditions brought on by their stressful jobs, she said.
“Also, it would be interesting to know what is the current state of health monitoring (both physical, mental, and emotional) that occurs for firefighters,” she said.
The American Heart Association funded the study. The authors and Dr. Sasson report no disclosures.
A version of this article first appeared on Medscape.com.
FROM AHA 2021
Vegetable fats tied to lower stroke risk, animal fats to higher risk
Higher intake of vegetable fats from foods such as olive oil and nuts is associated with a lower risk for stroke, whereas people who eat more animal fats, especially processed red meats, may have a higher stroke risk, observational findings suggest.
In a study of more than 117,000 health professionals who were followed for 27 years, those whose diet was in the highest quintile for intake of vegetable fat had a 12% lower risk for stroke, compared with those who consumed the least amount of vegetable fats.
Conversely, having the highest intake of animal fat from nondairy sources was associated with a 16% increased risk of stroke.
Fenglei Wang, PhD, presented these results at the American Heart Association scientific sessions.
“Our findings support the Dietary Guidelines for Americans and dietary recommendations by AHA,” Dr. Wang, a postdoctoral fellow in the department of nutrition at Harvard University’s T.H. Chan School of Public Health in Boston, told this news organization.
“The main sources of vegetable fat have a large overlap with polyunsaturated fat, such as vegetable oils, nuts, walnuts, and peanut butter,” Dr. Wang noted, adding that fish, especially fatty fish, is a main source of polyunsaturated fat and is recommended for cardiovascular health.
“We would recommend that people reduce consumption of red and processed meat, minimize fatty parts of unprocessed meat if consumed, and replace lard or tallow (beef fat) with nontropical vegetable oils, such as olive oil, corn, or soybean oils in cooking, to lower their stroke risk,” she said.
Moreover, although the results from this study of dietary fat are informative, Dr. Wang continued, “there are other dietary factors (fruits, vegetables, salt, alcohol, et cetera), and lifestyle factors (physical activity, smoking, et cetera), that are associated with stroke risk and worthy of attention as well.”
“Many processed meats are high in salt and saturated fat, and low in vegetable fat,” Alice H. Lichtenstein, DSc, an AHA spokesperson who was not involved with this research, noted in a press release.
“Research shows that replacing processed meat with other protein sources, particularly plant sources, is associated with lower death rates,” added Dr. Lichtenstein, the Stanley N. Gershoff professor of nutrition science and policy at Tufts University in Boston, and lead author of the AHA’s 2021 scientific statement, Dietary Guidance to Improve Cardiovascular Health.
“Key features of a heart-healthy diet pattern,” she summarized, “are to balance calorie intake with calorie needs to achieve and maintain a healthy weight; choose whole grains, lean and plant-based protein, and a variety of fruits and vegetables; limit salt, sugar, animal fat, processed foods, and alcohol; and apply this guidance regardless of where the food is prepared or consumed.”
Replace processed meat with plant proteins
The focus on stroke in this study “is important” because, traditionally, studies of diet and cardiovascular health have focused on coronary heart disease, Andrew Mente, PhD, who also was not involved in this research, said in an email to this news organization.
“Overall, the take-home message from the study is that replacing processed meat with plant sources of protein in the diet is probably beneficial,” Dr. Mente, associate professor, health research methods, evidence, and impact, Faculty of Health Sciences, McMaster University, Hamilton, Ont., said.
The finding that people who ate the most vegetable fat had a modest 12% lower risk of stroke than those who ate the least vegetable fat “points to protective effects of foods like seeds, nuts, vegetables, and olive oil, which has been shown previously,” he continued.
The highest quintile of total red meat intake was associated with an 8% higher risk for stroke, but this was driven mainly by processed red meat (which was associated with a 12% higher risk for stroke). These findings are “generally consistent with cohort studies showing that processed meat, as with most highly processed foods for that matter, are associated with an increased risk of cardiovascular events,” Dr. Mente noted.
“Surprisingly, dairy products (such as cheese, butter, or milk) in the study were not connected with the risk of stroke,” he added. This finding differs from results of meta-analyses of multiple cohort studies of dairy intake and stroke and the recent large international PURE study, which showed that dairy intake was associated with a lower risk for stroke.
“What is needed to move the field forward,” according to Dr. Mente, “is to employ new methods that use cutting-edge technology to study nutritional biomarkers and health outcomes.”
“When dealing with modest associations as usually encountered in nutrition, it is a challenge to make causal connections based on dietary questionnaires, which are fraught with measurement error,” he added. “The use of novel methods is where the field is headed.”
Total dietary fat, different types, and different food sources
Dr. Wang and colleagues investigated how total dietary fat, different types of fat, and fats from different foods were associated with incident stroke in 73,867 women in the 1984-2016 Nurses’ Health Study and 43,269 men who participated in the 1986-2016 Health Professionals Follow-up Study.
The participants had an average age of 50 years, 63% were women, and 97% were White. They replied to food-frequency questionnaires every 4 years.
Total red meat included beef, pork, or lamb (as a main dish or in sandwiches or mixed dishes) as well as processed red meats (such as bacon, sausage, bologna, hot dogs, and salami).
Animal fat sources included meat, beef tallow, lard, and full-fat dairy products, such as full-fat milk and cheese.
The median percentage of total daily calories from different sources of fat ranged from 10% to 20% for vegetable fat, 3% to 10% for dairy fat, and 7% to 17% for nondairy animal fat (for lowest to highest quintiles).
The median percentage of total daily calories from different types of fat ranged from 5% to 8% for polyunsaturated fat, 4% to 7% for n-6 polyunsaturated fat, 9% to 15% for monounsaturated fat, 8% to 14% for saturated fat, and 1% to 2% for trans fat.
During follow-up, there were 6,189 incident strokes, including 2,967 ischemic strokes and 814 hemorrhagic strokes.
The researchers found that intake in the highest quintile of vegetable fat was associated with a lower risk for total stroke, compared with the lowest quintile (hazard ratio, 0.88; 95% confidence interval, 0.81-0.96; P for trend < .001).
Similarly, the highest intake of polyunsaturated fat was also associated with lower total stroke (HR, 0.88; 95% CI, 0.80-0.96; P for trend = .002).
Highest intake of nondairy animal fat, however, was associated with an increased risk for total stroke (HR, 1.16; 95% CI, 1.05-1.29; P for trend < .001). They observed “similar associations” for ischemic stroke, but the only positive association for nondairy animal fat was with hemorrhagic stroke, the abstract notes.
The risk for stroke was lower by 9% per serving per day for vegetable oil but increased by 8% and 12%, respectively, per serving of total red meat or processed red meat.
The association for vegetable oil was attenuated after adjustment for vegetable fat or polyunsaturated fat, whereas adjustment for nondairy animal fat rendered the association for total red meat and processed red meat nonsignificant.
The study was funded by the National Heart, Lung, and Blood Institute of the National Institutes of Health. Dr. Wang has no relevant financial disclosures. Dr. Mente has received research funding from the Dairy Farmers of Canada and the National Dairy Council to analyze data on dairy consumption and health outcomes in the PURE study, which is funded by the Population Health Research Institute, Hamilton Health Sciences Research Institute, and more than 70 other sources (government and pharmaceutical).
A version of this article first appeared on Medscape.com.
Higher intake of vegetable fats from foods such as olive oil and nuts is associated with a lower risk for stroke, whereas people who eat more animal fats, especially processed red meats, may have a higher stroke risk, observational findings suggest.
In a study of more than 117,000 health professionals who were followed for 27 years, those whose diet was in the highest quintile for intake of vegetable fat had a 12% lower risk for stroke, compared with those who consumed the least amount of vegetable fats.
Conversely, having the highest intake of animal fat from nondairy sources was associated with a 16% increased risk of stroke.
Fenglei Wang, PhD, presented these results at the American Heart Association scientific sessions.
“Our findings support the Dietary Guidelines for Americans and dietary recommendations by AHA,” Dr. Wang, a postdoctoral fellow in the department of nutrition at Harvard University’s T.H. Chan School of Public Health in Boston, told this news organization.
“The main sources of vegetable fat have a large overlap with polyunsaturated fat, such as vegetable oils, nuts, walnuts, and peanut butter,” Dr. Wang noted, adding that fish, especially fatty fish, is a main source of polyunsaturated fat and is recommended for cardiovascular health.
“We would recommend that people reduce consumption of red and processed meat, minimize fatty parts of unprocessed meat if consumed, and replace lard or tallow (beef fat) with nontropical vegetable oils, such as olive oil, corn, or soybean oils in cooking, to lower their stroke risk,” she said.
Moreover, although the results from this study of dietary fat are informative, Dr. Wang continued, “there are other dietary factors (fruits, vegetables, salt, alcohol, et cetera), and lifestyle factors (physical activity, smoking, et cetera), that are associated with stroke risk and worthy of attention as well.”
“Many processed meats are high in salt and saturated fat, and low in vegetable fat,” Alice H. Lichtenstein, DSc, an AHA spokesperson who was not involved with this research, noted in a press release.
“Research shows that replacing processed meat with other protein sources, particularly plant sources, is associated with lower death rates,” added Dr. Lichtenstein, the Stanley N. Gershoff professor of nutrition science and policy at Tufts University in Boston, and lead author of the AHA’s 2021 scientific statement, Dietary Guidance to Improve Cardiovascular Health.
“Key features of a heart-healthy diet pattern,” she summarized, “are to balance calorie intake with calorie needs to achieve and maintain a healthy weight; choose whole grains, lean and plant-based protein, and a variety of fruits and vegetables; limit salt, sugar, animal fat, processed foods, and alcohol; and apply this guidance regardless of where the food is prepared or consumed.”
Replace processed meat with plant proteins
The focus on stroke in this study “is important” because, traditionally, studies of diet and cardiovascular health have focused on coronary heart disease, Andrew Mente, PhD, who also was not involved in this research, said in an email to this news organization.
“Overall, the take-home message from the study is that replacing processed meat with plant sources of protein in the diet is probably beneficial,” Dr. Mente, associate professor, health research methods, evidence, and impact, Faculty of Health Sciences, McMaster University, Hamilton, Ont., said.
The finding that people who ate the most vegetable fat had a modest 12% lower risk of stroke than those who ate the least vegetable fat “points to protective effects of foods like seeds, nuts, vegetables, and olive oil, which has been shown previously,” he continued.
The highest quintile of total red meat intake was associated with an 8% higher risk for stroke, but this was driven mainly by processed red meat (which was associated with a 12% higher risk for stroke). These findings are “generally consistent with cohort studies showing that processed meat, as with most highly processed foods for that matter, are associated with an increased risk of cardiovascular events,” Dr. Mente noted.
“Surprisingly, dairy products (such as cheese, butter, or milk) in the study were not connected with the risk of stroke,” he added. This finding differs from results of meta-analyses of multiple cohort studies of dairy intake and stroke and the recent large international PURE study, which showed that dairy intake was associated with a lower risk for stroke.
“What is needed to move the field forward,” according to Dr. Mente, “is to employ new methods that use cutting-edge technology to study nutritional biomarkers and health outcomes.”
“When dealing with modest associations as usually encountered in nutrition, it is a challenge to make causal connections based on dietary questionnaires, which are fraught with measurement error,” he added. “The use of novel methods is where the field is headed.”
Total dietary fat, different types, and different food sources
Dr. Wang and colleagues investigated how total dietary fat, different types of fat, and fats from different foods were associated with incident stroke in 73,867 women in the 1984-2016 Nurses’ Health Study and 43,269 men who participated in the 1986-2016 Health Professionals Follow-up Study.
The participants had an average age of 50 years, 63% were women, and 97% were White. They replied to food-frequency questionnaires every 4 years.
Total red meat included beef, pork, or lamb (as a main dish or in sandwiches or mixed dishes) as well as processed red meats (such as bacon, sausage, bologna, hot dogs, and salami).
Animal fat sources included meat, beef tallow, lard, and full-fat dairy products, such as full-fat milk and cheese.
The median percentage of total daily calories from different sources of fat ranged from 10% to 20% for vegetable fat, 3% to 10% for dairy fat, and 7% to 17% for nondairy animal fat (for lowest to highest quintiles).
The median percentage of total daily calories from different types of fat ranged from 5% to 8% for polyunsaturated fat, 4% to 7% for n-6 polyunsaturated fat, 9% to 15% for monounsaturated fat, 8% to 14% for saturated fat, and 1% to 2% for trans fat.
During follow-up, there were 6,189 incident strokes, including 2,967 ischemic strokes and 814 hemorrhagic strokes.
The researchers found that intake in the highest quintile of vegetable fat was associated with a lower risk for total stroke, compared with the lowest quintile (hazard ratio, 0.88; 95% confidence interval, 0.81-0.96; P for trend < .001).
Similarly, the highest intake of polyunsaturated fat was also associated with lower total stroke (HR, 0.88; 95% CI, 0.80-0.96; P for trend = .002).
Highest intake of nondairy animal fat, however, was associated with an increased risk for total stroke (HR, 1.16; 95% CI, 1.05-1.29; P for trend < .001). They observed “similar associations” for ischemic stroke, but the only positive association for nondairy animal fat was with hemorrhagic stroke, the abstract notes.
The risk for stroke was lower by 9% per serving per day for vegetable oil but increased by 8% and 12%, respectively, per serving of total red meat or processed red meat.
The association for vegetable oil was attenuated after adjustment for vegetable fat or polyunsaturated fat, whereas adjustment for nondairy animal fat rendered the association for total red meat and processed red meat nonsignificant.
The study was funded by the National Heart, Lung, and Blood Institute of the National Institutes of Health. Dr. Wang has no relevant financial disclosures. Dr. Mente has received research funding from the Dairy Farmers of Canada and the National Dairy Council to analyze data on dairy consumption and health outcomes in the PURE study, which is funded by the Population Health Research Institute, Hamilton Health Sciences Research Institute, and more than 70 other sources (government and pharmaceutical).
A version of this article first appeared on Medscape.com.
Higher intake of vegetable fats from foods such as olive oil and nuts is associated with a lower risk for stroke, whereas people who eat more animal fats, especially processed red meats, may have a higher stroke risk, observational findings suggest.
In a study of more than 117,000 health professionals who were followed for 27 years, those whose diet was in the highest quintile for intake of vegetable fat had a 12% lower risk for stroke, compared with those who consumed the least amount of vegetable fats.
Conversely, having the highest intake of animal fat from nondairy sources was associated with a 16% increased risk of stroke.
Fenglei Wang, PhD, presented these results at the American Heart Association scientific sessions.
“Our findings support the Dietary Guidelines for Americans and dietary recommendations by AHA,” Dr. Wang, a postdoctoral fellow in the department of nutrition at Harvard University’s T.H. Chan School of Public Health in Boston, told this news organization.
“The main sources of vegetable fat have a large overlap with polyunsaturated fat, such as vegetable oils, nuts, walnuts, and peanut butter,” Dr. Wang noted, adding that fish, especially fatty fish, is a main source of polyunsaturated fat and is recommended for cardiovascular health.
“We would recommend that people reduce consumption of red and processed meat, minimize fatty parts of unprocessed meat if consumed, and replace lard or tallow (beef fat) with nontropical vegetable oils, such as olive oil, corn, or soybean oils in cooking, to lower their stroke risk,” she said.
Moreover, although the results from this study of dietary fat are informative, Dr. Wang continued, “there are other dietary factors (fruits, vegetables, salt, alcohol, et cetera), and lifestyle factors (physical activity, smoking, et cetera), that are associated with stroke risk and worthy of attention as well.”
“Many processed meats are high in salt and saturated fat, and low in vegetable fat,” Alice H. Lichtenstein, DSc, an AHA spokesperson who was not involved with this research, noted in a press release.
“Research shows that replacing processed meat with other protein sources, particularly plant sources, is associated with lower death rates,” added Dr. Lichtenstein, the Stanley N. Gershoff professor of nutrition science and policy at Tufts University in Boston, and lead author of the AHA’s 2021 scientific statement, Dietary Guidance to Improve Cardiovascular Health.
“Key features of a heart-healthy diet pattern,” she summarized, “are to balance calorie intake with calorie needs to achieve and maintain a healthy weight; choose whole grains, lean and plant-based protein, and a variety of fruits and vegetables; limit salt, sugar, animal fat, processed foods, and alcohol; and apply this guidance regardless of where the food is prepared or consumed.”
Replace processed meat with plant proteins
The focus on stroke in this study “is important” because, traditionally, studies of diet and cardiovascular health have focused on coronary heart disease, Andrew Mente, PhD, who also was not involved in this research, said in an email to this news organization.
“Overall, the take-home message from the study is that replacing processed meat with plant sources of protein in the diet is probably beneficial,” Dr. Mente, associate professor, health research methods, evidence, and impact, Faculty of Health Sciences, McMaster University, Hamilton, Ont., said.
The finding that people who ate the most vegetable fat had a modest 12% lower risk of stroke than those who ate the least vegetable fat “points to protective effects of foods like seeds, nuts, vegetables, and olive oil, which has been shown previously,” he continued.
The highest quintile of total red meat intake was associated with an 8% higher risk for stroke, but this was driven mainly by processed red meat (which was associated with a 12% higher risk for stroke). These findings are “generally consistent with cohort studies showing that processed meat, as with most highly processed foods for that matter, are associated with an increased risk of cardiovascular events,” Dr. Mente noted.
“Surprisingly, dairy products (such as cheese, butter, or milk) in the study were not connected with the risk of stroke,” he added. This finding differs from results of meta-analyses of multiple cohort studies of dairy intake and stroke and the recent large international PURE study, which showed that dairy intake was associated with a lower risk for stroke.
“What is needed to move the field forward,” according to Dr. Mente, “is to employ new methods that use cutting-edge technology to study nutritional biomarkers and health outcomes.”
“When dealing with modest associations as usually encountered in nutrition, it is a challenge to make causal connections based on dietary questionnaires, which are fraught with measurement error,” he added. “The use of novel methods is where the field is headed.”
Total dietary fat, different types, and different food sources
Dr. Wang and colleagues investigated how total dietary fat, different types of fat, and fats from different foods were associated with incident stroke in 73,867 women in the 1984-2016 Nurses’ Health Study and 43,269 men who participated in the 1986-2016 Health Professionals Follow-up Study.
The participants had an average age of 50 years, 63% were women, and 97% were White. They replied to food-frequency questionnaires every 4 years.
Total red meat included beef, pork, or lamb (as a main dish or in sandwiches or mixed dishes) as well as processed red meats (such as bacon, sausage, bologna, hot dogs, and salami).
Animal fat sources included meat, beef tallow, lard, and full-fat dairy products, such as full-fat milk and cheese.
The median percentage of total daily calories from different sources of fat ranged from 10% to 20% for vegetable fat, 3% to 10% for dairy fat, and 7% to 17% for nondairy animal fat (for lowest to highest quintiles).
The median percentage of total daily calories from different types of fat ranged from 5% to 8% for polyunsaturated fat, 4% to 7% for n-6 polyunsaturated fat, 9% to 15% for monounsaturated fat, 8% to 14% for saturated fat, and 1% to 2% for trans fat.
During follow-up, there were 6,189 incident strokes, including 2,967 ischemic strokes and 814 hemorrhagic strokes.
The researchers found that intake in the highest quintile of vegetable fat was associated with a lower risk for total stroke, compared with the lowest quintile (hazard ratio, 0.88; 95% confidence interval, 0.81-0.96; P for trend < .001).
Similarly, the highest intake of polyunsaturated fat was also associated with lower total stroke (HR, 0.88; 95% CI, 0.80-0.96; P for trend = .002).
Highest intake of nondairy animal fat, however, was associated with an increased risk for total stroke (HR, 1.16; 95% CI, 1.05-1.29; P for trend < .001). They observed “similar associations” for ischemic stroke, but the only positive association for nondairy animal fat was with hemorrhagic stroke, the abstract notes.
The risk for stroke was lower by 9% per serving per day for vegetable oil but increased by 8% and 12%, respectively, per serving of total red meat or processed red meat.
The association for vegetable oil was attenuated after adjustment for vegetable fat or polyunsaturated fat, whereas adjustment for nondairy animal fat rendered the association for total red meat and processed red meat nonsignificant.
The study was funded by the National Heart, Lung, and Blood Institute of the National Institutes of Health. Dr. Wang has no relevant financial disclosures. Dr. Mente has received research funding from the Dairy Farmers of Canada and the National Dairy Council to analyze data on dairy consumption and health outcomes in the PURE study, which is funded by the Population Health Research Institute, Hamilton Health Sciences Research Institute, and more than 70 other sources (government and pharmaceutical).
A version of this article first appeared on Medscape.com.
FROM AHA 2021
More STEP data: Semaglutide cuts weight, cravings, beats liraglutide
The STEP 5 clinical trial extends favorable weight loss from 1 year out to 2 years for the glucagon-like peptide-1 (GLP-1) agonist semaglutide (Wegovy, Novo Nordisk), given as a once-weekly 2.4-mg subcutaneous injection, and some food cravings were improved in a subgroup analysis.
In another study, STEP 8, weight loss was greater at 68 weeks with semaglutide subcutaneous injection than with a 3-mg daily subcutaneous injection of another GLP-1 agonist, liraglutide (Saxenda, Novo Nordisk), approved earlier for weight loss.
Researchers presented these promising outcomes, with no new safety signals, at ObesityWeek® 2021.
However, there is more to learn about the drug class, researchers agree. Follow-up is still relatively short for a chronic disease and many patients have gastrointestinal side effects with semaglutide, one expert cautions.
The key findings were:
In STEP 5, combined with lifestyle intervention (a reduced-calorie meal plan and advice about physical activity), weekly injection of 2.4 mg semaglutide led to:
- 15.2% weight loss, compared with 2.6% weight loss with placebo at 2 years (P < .0001);
- 77% of patients losing at least 5% of their weight, compared with 34% of patients in the placebo group at 2 years (P < .0001);
- Significantly greater improvement in overall control of cravings, and craving for savory foods, in a subset of patients, versus placebo, but questionnaire scores for positive mood and craving for sweet foods were similar in both groups.
- In STEP 8, mean body weight at 68 weeks was 15.8% lower with 2.4 mg/week subcutaneous semaglutide plus lifestyle changes versus 6.4% lower with 3.0 mg/day subcutaneous liraglutide plus lifestyle changes (P < .001).
Can treat to a target weight-loss range
The undiminished weight loss efficacy in the 2-year data for STEP 5 “portends well,” said W. Timothy Garvey, MD, following his presentation of the results.
“I think this is a new era in obesity care,” said Dr. Garvey, director of the diabetes research center at the University of Alabama at Birmingham. Semaglutide “essentially doubles weight loss efficacy” compared to the other approved pharmacotherapies for obesity.
With this degree of potential weight loss, clinicians “can use weight as a biomarker and treat to a target [weight-loss] range,” he said.
Expounding on this in an interview, Dr. Garvey noted that, as stated in the 2016 American Association of Clinical Endocrinologists (AACE) and American College of Endocrinology (ACE) clinical practice guidelines for medical care of patients with obesity, of which he was lead author, “the objective of care in obesity is to increase health of patients and prevent or treat complications.”
Semaglutide “can treat to a range of weight loss of 10% to 20% in the majority of patients,” which is associated with improvements in cardiovascular and metabolic risk factors.
In STEP 5, of the 51% of patients in the semaglutide group who had prediabetes at enrollment, 80% had normal glycemia at 2 years; however, the trial was not powered nor designed to investigate this.
More data are needed to inform long-term care decisions. The ongoing SELECT cardiovascular outcomes trial of semaglutide, with expected primary study completion on Sept. 28, 2023, should provide more information.
Weight loss plus reduced cravings
In another presentation, Sean Wharton, MD, PharmD, said, “In adults with overweight or obesity, substantial weight loss with semaglutide 2.4 mg was accompanied by short- and long-term improvements in control of eating.”
“Most patients living with obesity who are attempting to decrease calories will have food cravings, based on the biological parameters of weight preservation,” Dr. Wharton, medical director at the Wharton Medical Clinic, in Hamilton, Ont., explained in an email.
The degree of craving varies from patient to patient, likely based on genetics, he added. Research in this field is still emerging.
“I believe that semaglutide 2.4 mg is a game-changer in the field of weight management, and it will change the dialogue for insurance plans and with policymakers regarding coverage for this medication,” said Dr. Wharton.
“The data from the STEP programs are very strong. I am certainly hoping for a change to bias against covering these medications that we have seen in the past,” he said.
Clinically meaningful weight loss
When presenting the STEP 8 findings, Domenica M. Rubino, MD, said: “Participants were significantly more likely to achieve clinically meaningful weight loss thresholds with semaglutide 2.4 mg versus liraglutide 3.0 mg, accompanied by greater improvements in cardiometabolic risk factors.”
For example, patients can have better mobility, which is important for quality of life, Dr. Rubino, director of the Washington Center for Weight Management and Research, Arlington, Virginia, noted.
A smaller percentage of patients respond to liraglutide, she added. Clinicians need to individualize treatment.
When asked, “How do you choose which medical therapy?” Dr. Rubino responded: “We sit and talk.” Finding the medical therapy that fits the patient depends on things such as the patient’s insurance coverage and ability to tolerate side effects such as dehydration, diarrhea, and nausea.
When asked, “How do you switch from liraglutide to semaglutide?” she noted that there are no current guidelines for this. “You have to be careful. Start on the lowest dose of Wegovy. Be cautious, conservative.”
Still early days, caveats remain
“The STEP trials as a group appear to be making the case that obesity may now be considered a medically manageable disease, based on the experience with semaglutide,” Julie R. Ingelfinger, MD, who was not involved with the research, commented in an email.
“STEP 5 and 8 may suggest that weight loss occurs and is sustainable in overweight persons without diabetes with one or more comorbidities or in obese persons without diabetes,” added Dr. Ingelfinger, professor of pediatrics, Harvard Medical School, consultant in pediatric nephrology, Massachusetts General Hospital, Boston, and deputy editor, The New England Journal of Medicine.
However, “even 2 years, in the case of STEP 5, and ~68 weeks in the case of STEP 8, may not be long enough to know whether semaglutide is as promising as these brief summaries (abstracts) suggest,” she cautioned.
“Obesity is a chronic condition, and very long-term therapy and management are required,” Dr. Ingelfinger continued.
“Further, it is hard to generalize when gastrointestinal adverse events are common in a study,” she said. For example, in STEP 8, they were just as common with semaglutide as with the comparator liraglutide, she noted.
“The racial and ethnic representativeness of these studies does not reflect population distributions in the U.S., limiting generalization,” she continued.
“So, there remain caveats in interpreting these data.”
STEP 5 weight loss efficacy and safety at 2 years
Garvey reported that STEP 5 was a phase 3b trial that randomized 304 adults in the United States, Canada, Hungary, Italy, and Spain, who were 18 years and older, with a body mass index (BMI) ≥27 kg/m2 with at least one weight-related comorbidity (hypertension, dyslipidemia, obstructive sleep apnea, or cardiovascular disease) or a BMI ≥30 kg/m2, without type 2 diabetes, to receive semaglutide or placebo plus lifestyle intervention.
Most participants were women (78%) and White (93%). On average, they were 47 years old, weighed 106 kg (223.7 pounds), had a BMI of 38.5 kg/m2, a waist circumference of 115.7 cm (45.6 inches), and an A1c of 5.7%.
A total of 87% of patients in the semaglutide group and 73% of patients in the placebo group completed the trial.
At 104 weeks, participants were more likely to lose ≥10%, ≥15%, and ≥20% of body weight with semaglutide versus placebo (61.8% vs. 13.3%, 52.1% vs. 7.0%, and 36.1% vs. 2.3%, respectively; P < .0001 for all).
Patients in the semaglutide group had greater health improvements in cardiovascular risk factors (waist circumference, systolic and diastolic blood pressure, and C-reactive protein) and metabolic risk factors (A1c, fasting plasma glucose, fasting serum insulin, and triglycerides) than those in the placebo group (P < .05 for all).
Safety and tolerability were consistent with adverse events seen with this drug class, with no new safety signals.
Control of eating questionnaire findings at 2 years in STEP 5
Dr. Wharton and colleagues assessed changes in responses to the Control of Eating questionnaire at baseline and at 20, 52, and 104 weeks in patients from the U.S. and Canada in the STEP 5 trial (88 patients in the semaglutide group and 86 patients in the placebo group).
The questionnaire consisted of 19 questions grouped into four categories: control of food cravings, craving for savory foods (salty and spicy, dairy, or starchy foods), craving for sweet foods (chocolate, sweet foods, or fruit/fruit juice), and positive mood.
At week 104, patients in the semaglutide group had significantly greater improvements in scores for craving for salty and spicy, dairy, and starchy foods, and resisting cravings.
Semaglutide versus liraglutide, 68-week efficacy and safety in STEP 8
STEP 8 randomized 338 U.S. adults without diabetes and a BMI of ≥27 kg/m2 plus one or more weight-related comorbidities or a BMI of ≥30 kg/m2 3:1 to semaglutide 2.4 mg once weekly (n = 126) or matching placebo, or 3:1 liraglutide 3.0 mg once daily (n = 127) or matching placebo, plus lifestyle intervention.
Most participants were women (78%) and were a mean age of 49, had a mean body weight of 104.5 kg, and had a mean BMI of 37.5 kg/m2.
In STEP 8, more participants achieved ≥10%, ≥15%, and ≥20% weight loss with semaglutide than with liraglutide (70.9% vs. 25.6%, 55.6% vs. 12.0%, and 38.5% vs. 6.0%, respectively; P < .001 for all odds ratios).
Semaglutide improved waist circumference, A1c, and C-reactive protein versus liraglutide (unadjusted P < .001 for all).
Gastrointestinal adverse events were reported by 84% and 83% of participants receiving semaglutide and liraglutide, respectively. Most events were mild/moderate and transient, with prevalence declining over time.
Fewer participants stopped treatment due to adverse events with semaglutide than liraglutide (3.2% vs. 12.6%).
Dr. Garvey has reported serving as a site principal investigator for multicentered clinical trials sponsored by his university and funded by Eli Lilly, Novo Nordisk, and Pfizer. Dr. Wharton has reported financial ties to Novo Nordisk, Bausch Health Canada, Eli Lily, and Boehringer Ingelheim Canada. Dr. Rubino has reported ties to Boehringer Ingelheim and AstraZeneca. Dr. Ingelfinger has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
The STEP 5 clinical trial extends favorable weight loss from 1 year out to 2 years for the glucagon-like peptide-1 (GLP-1) agonist semaglutide (Wegovy, Novo Nordisk), given as a once-weekly 2.4-mg subcutaneous injection, and some food cravings were improved in a subgroup analysis.
In another study, STEP 8, weight loss was greater at 68 weeks with semaglutide subcutaneous injection than with a 3-mg daily subcutaneous injection of another GLP-1 agonist, liraglutide (Saxenda, Novo Nordisk), approved earlier for weight loss.
Researchers presented these promising outcomes, with no new safety signals, at ObesityWeek® 2021.
However, there is more to learn about the drug class, researchers agree. Follow-up is still relatively short for a chronic disease and many patients have gastrointestinal side effects with semaglutide, one expert cautions.
The key findings were:
In STEP 5, combined with lifestyle intervention (a reduced-calorie meal plan and advice about physical activity), weekly injection of 2.4 mg semaglutide led to:
- 15.2% weight loss, compared with 2.6% weight loss with placebo at 2 years (P < .0001);
- 77% of patients losing at least 5% of their weight, compared with 34% of patients in the placebo group at 2 years (P < .0001);
- Significantly greater improvement in overall control of cravings, and craving for savory foods, in a subset of patients, versus placebo, but questionnaire scores for positive mood and craving for sweet foods were similar in both groups.
- In STEP 8, mean body weight at 68 weeks was 15.8% lower with 2.4 mg/week subcutaneous semaglutide plus lifestyle changes versus 6.4% lower with 3.0 mg/day subcutaneous liraglutide plus lifestyle changes (P < .001).
Can treat to a target weight-loss range
The undiminished weight loss efficacy in the 2-year data for STEP 5 “portends well,” said W. Timothy Garvey, MD, following his presentation of the results.
“I think this is a new era in obesity care,” said Dr. Garvey, director of the diabetes research center at the University of Alabama at Birmingham. Semaglutide “essentially doubles weight loss efficacy” compared to the other approved pharmacotherapies for obesity.
With this degree of potential weight loss, clinicians “can use weight as a biomarker and treat to a target [weight-loss] range,” he said.
Expounding on this in an interview, Dr. Garvey noted that, as stated in the 2016 American Association of Clinical Endocrinologists (AACE) and American College of Endocrinology (ACE) clinical practice guidelines for medical care of patients with obesity, of which he was lead author, “the objective of care in obesity is to increase health of patients and prevent or treat complications.”
Semaglutide “can treat to a range of weight loss of 10% to 20% in the majority of patients,” which is associated with improvements in cardiovascular and metabolic risk factors.
In STEP 5, of the 51% of patients in the semaglutide group who had prediabetes at enrollment, 80% had normal glycemia at 2 years; however, the trial was not powered nor designed to investigate this.
More data are needed to inform long-term care decisions. The ongoing SELECT cardiovascular outcomes trial of semaglutide, with expected primary study completion on Sept. 28, 2023, should provide more information.
Weight loss plus reduced cravings
In another presentation, Sean Wharton, MD, PharmD, said, “In adults with overweight or obesity, substantial weight loss with semaglutide 2.4 mg was accompanied by short- and long-term improvements in control of eating.”
“Most patients living with obesity who are attempting to decrease calories will have food cravings, based on the biological parameters of weight preservation,” Dr. Wharton, medical director at the Wharton Medical Clinic, in Hamilton, Ont., explained in an email.
The degree of craving varies from patient to patient, likely based on genetics, he added. Research in this field is still emerging.
“I believe that semaglutide 2.4 mg is a game-changer in the field of weight management, and it will change the dialogue for insurance plans and with policymakers regarding coverage for this medication,” said Dr. Wharton.
“The data from the STEP programs are very strong. I am certainly hoping for a change to bias against covering these medications that we have seen in the past,” he said.
Clinically meaningful weight loss
When presenting the STEP 8 findings, Domenica M. Rubino, MD, said: “Participants were significantly more likely to achieve clinically meaningful weight loss thresholds with semaglutide 2.4 mg versus liraglutide 3.0 mg, accompanied by greater improvements in cardiometabolic risk factors.”
For example, patients can have better mobility, which is important for quality of life, Dr. Rubino, director of the Washington Center for Weight Management and Research, Arlington, Virginia, noted.
A smaller percentage of patients respond to liraglutide, she added. Clinicians need to individualize treatment.
When asked, “How do you choose which medical therapy?” Dr. Rubino responded: “We sit and talk.” Finding the medical therapy that fits the patient depends on things such as the patient’s insurance coverage and ability to tolerate side effects such as dehydration, diarrhea, and nausea.
When asked, “How do you switch from liraglutide to semaglutide?” she noted that there are no current guidelines for this. “You have to be careful. Start on the lowest dose of Wegovy. Be cautious, conservative.”
Still early days, caveats remain
“The STEP trials as a group appear to be making the case that obesity may now be considered a medically manageable disease, based on the experience with semaglutide,” Julie R. Ingelfinger, MD, who was not involved with the research, commented in an email.
“STEP 5 and 8 may suggest that weight loss occurs and is sustainable in overweight persons without diabetes with one or more comorbidities or in obese persons without diabetes,” added Dr. Ingelfinger, professor of pediatrics, Harvard Medical School, consultant in pediatric nephrology, Massachusetts General Hospital, Boston, and deputy editor, The New England Journal of Medicine.
However, “even 2 years, in the case of STEP 5, and ~68 weeks in the case of STEP 8, may not be long enough to know whether semaglutide is as promising as these brief summaries (abstracts) suggest,” she cautioned.
“Obesity is a chronic condition, and very long-term therapy and management are required,” Dr. Ingelfinger continued.
“Further, it is hard to generalize when gastrointestinal adverse events are common in a study,” she said. For example, in STEP 8, they were just as common with semaglutide as with the comparator liraglutide, she noted.
“The racial and ethnic representativeness of these studies does not reflect population distributions in the U.S., limiting generalization,” she continued.
“So, there remain caveats in interpreting these data.”
STEP 5 weight loss efficacy and safety at 2 years
Garvey reported that STEP 5 was a phase 3b trial that randomized 304 adults in the United States, Canada, Hungary, Italy, and Spain, who were 18 years and older, with a body mass index (BMI) ≥27 kg/m2 with at least one weight-related comorbidity (hypertension, dyslipidemia, obstructive sleep apnea, or cardiovascular disease) or a BMI ≥30 kg/m2, without type 2 diabetes, to receive semaglutide or placebo plus lifestyle intervention.
Most participants were women (78%) and White (93%). On average, they were 47 years old, weighed 106 kg (223.7 pounds), had a BMI of 38.5 kg/m2, a waist circumference of 115.7 cm (45.6 inches), and an A1c of 5.7%.
A total of 87% of patients in the semaglutide group and 73% of patients in the placebo group completed the trial.
At 104 weeks, participants were more likely to lose ≥10%, ≥15%, and ≥20% of body weight with semaglutide versus placebo (61.8% vs. 13.3%, 52.1% vs. 7.0%, and 36.1% vs. 2.3%, respectively; P < .0001 for all).
Patients in the semaglutide group had greater health improvements in cardiovascular risk factors (waist circumference, systolic and diastolic blood pressure, and C-reactive protein) and metabolic risk factors (A1c, fasting plasma glucose, fasting serum insulin, and triglycerides) than those in the placebo group (P < .05 for all).
Safety and tolerability were consistent with adverse events seen with this drug class, with no new safety signals.
Control of eating questionnaire findings at 2 years in STEP 5
Dr. Wharton and colleagues assessed changes in responses to the Control of Eating questionnaire at baseline and at 20, 52, and 104 weeks in patients from the U.S. and Canada in the STEP 5 trial (88 patients in the semaglutide group and 86 patients in the placebo group).
The questionnaire consisted of 19 questions grouped into four categories: control of food cravings, craving for savory foods (salty and spicy, dairy, or starchy foods), craving for sweet foods (chocolate, sweet foods, or fruit/fruit juice), and positive mood.
At week 104, patients in the semaglutide group had significantly greater improvements in scores for craving for salty and spicy, dairy, and starchy foods, and resisting cravings.
Semaglutide versus liraglutide, 68-week efficacy and safety in STEP 8
STEP 8 randomized 338 U.S. adults without diabetes and a BMI of ≥27 kg/m2 plus one or more weight-related comorbidities or a BMI of ≥30 kg/m2 3:1 to semaglutide 2.4 mg once weekly (n = 126) or matching placebo, or 3:1 liraglutide 3.0 mg once daily (n = 127) or matching placebo, plus lifestyle intervention.
Most participants were women (78%) and were a mean age of 49, had a mean body weight of 104.5 kg, and had a mean BMI of 37.5 kg/m2.
In STEP 8, more participants achieved ≥10%, ≥15%, and ≥20% weight loss with semaglutide than with liraglutide (70.9% vs. 25.6%, 55.6% vs. 12.0%, and 38.5% vs. 6.0%, respectively; P < .001 for all odds ratios).
Semaglutide improved waist circumference, A1c, and C-reactive protein versus liraglutide (unadjusted P < .001 for all).
Gastrointestinal adverse events were reported by 84% and 83% of participants receiving semaglutide and liraglutide, respectively. Most events were mild/moderate and transient, with prevalence declining over time.
Fewer participants stopped treatment due to adverse events with semaglutide than liraglutide (3.2% vs. 12.6%).
Dr. Garvey has reported serving as a site principal investigator for multicentered clinical trials sponsored by his university and funded by Eli Lilly, Novo Nordisk, and Pfizer. Dr. Wharton has reported financial ties to Novo Nordisk, Bausch Health Canada, Eli Lily, and Boehringer Ingelheim Canada. Dr. Rubino has reported ties to Boehringer Ingelheim and AstraZeneca. Dr. Ingelfinger has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
The STEP 5 clinical trial extends favorable weight loss from 1 year out to 2 years for the glucagon-like peptide-1 (GLP-1) agonist semaglutide (Wegovy, Novo Nordisk), given as a once-weekly 2.4-mg subcutaneous injection, and some food cravings were improved in a subgroup analysis.
In another study, STEP 8, weight loss was greater at 68 weeks with semaglutide subcutaneous injection than with a 3-mg daily subcutaneous injection of another GLP-1 agonist, liraglutide (Saxenda, Novo Nordisk), approved earlier for weight loss.
Researchers presented these promising outcomes, with no new safety signals, at ObesityWeek® 2021.
However, there is more to learn about the drug class, researchers agree. Follow-up is still relatively short for a chronic disease and many patients have gastrointestinal side effects with semaglutide, one expert cautions.
The key findings were:
In STEP 5, combined with lifestyle intervention (a reduced-calorie meal plan and advice about physical activity), weekly injection of 2.4 mg semaglutide led to:
- 15.2% weight loss, compared with 2.6% weight loss with placebo at 2 years (P < .0001);
- 77% of patients losing at least 5% of their weight, compared with 34% of patients in the placebo group at 2 years (P < .0001);
- Significantly greater improvement in overall control of cravings, and craving for savory foods, in a subset of patients, versus placebo, but questionnaire scores for positive mood and craving for sweet foods were similar in both groups.
- In STEP 8, mean body weight at 68 weeks was 15.8% lower with 2.4 mg/week subcutaneous semaglutide plus lifestyle changes versus 6.4% lower with 3.0 mg/day subcutaneous liraglutide plus lifestyle changes (P < .001).
Can treat to a target weight-loss range
The undiminished weight loss efficacy in the 2-year data for STEP 5 “portends well,” said W. Timothy Garvey, MD, following his presentation of the results.
“I think this is a new era in obesity care,” said Dr. Garvey, director of the diabetes research center at the University of Alabama at Birmingham. Semaglutide “essentially doubles weight loss efficacy” compared to the other approved pharmacotherapies for obesity.
With this degree of potential weight loss, clinicians “can use weight as a biomarker and treat to a target [weight-loss] range,” he said.
Expounding on this in an interview, Dr. Garvey noted that, as stated in the 2016 American Association of Clinical Endocrinologists (AACE) and American College of Endocrinology (ACE) clinical practice guidelines for medical care of patients with obesity, of which he was lead author, “the objective of care in obesity is to increase health of patients and prevent or treat complications.”
Semaglutide “can treat to a range of weight loss of 10% to 20% in the majority of patients,” which is associated with improvements in cardiovascular and metabolic risk factors.
In STEP 5, of the 51% of patients in the semaglutide group who had prediabetes at enrollment, 80% had normal glycemia at 2 years; however, the trial was not powered nor designed to investigate this.
More data are needed to inform long-term care decisions. The ongoing SELECT cardiovascular outcomes trial of semaglutide, with expected primary study completion on Sept. 28, 2023, should provide more information.
Weight loss plus reduced cravings
In another presentation, Sean Wharton, MD, PharmD, said, “In adults with overweight or obesity, substantial weight loss with semaglutide 2.4 mg was accompanied by short- and long-term improvements in control of eating.”
“Most patients living with obesity who are attempting to decrease calories will have food cravings, based on the biological parameters of weight preservation,” Dr. Wharton, medical director at the Wharton Medical Clinic, in Hamilton, Ont., explained in an email.
The degree of craving varies from patient to patient, likely based on genetics, he added. Research in this field is still emerging.
“I believe that semaglutide 2.4 mg is a game-changer in the field of weight management, and it will change the dialogue for insurance plans and with policymakers regarding coverage for this medication,” said Dr. Wharton.
“The data from the STEP programs are very strong. I am certainly hoping for a change to bias against covering these medications that we have seen in the past,” he said.
Clinically meaningful weight loss
When presenting the STEP 8 findings, Domenica M. Rubino, MD, said: “Participants were significantly more likely to achieve clinically meaningful weight loss thresholds with semaglutide 2.4 mg versus liraglutide 3.0 mg, accompanied by greater improvements in cardiometabolic risk factors.”
For example, patients can have better mobility, which is important for quality of life, Dr. Rubino, director of the Washington Center for Weight Management and Research, Arlington, Virginia, noted.
A smaller percentage of patients respond to liraglutide, she added. Clinicians need to individualize treatment.
When asked, “How do you choose which medical therapy?” Dr. Rubino responded: “We sit and talk.” Finding the medical therapy that fits the patient depends on things such as the patient’s insurance coverage and ability to tolerate side effects such as dehydration, diarrhea, and nausea.
When asked, “How do you switch from liraglutide to semaglutide?” she noted that there are no current guidelines for this. “You have to be careful. Start on the lowest dose of Wegovy. Be cautious, conservative.”
Still early days, caveats remain
“The STEP trials as a group appear to be making the case that obesity may now be considered a medically manageable disease, based on the experience with semaglutide,” Julie R. Ingelfinger, MD, who was not involved with the research, commented in an email.
“STEP 5 and 8 may suggest that weight loss occurs and is sustainable in overweight persons without diabetes with one or more comorbidities or in obese persons without diabetes,” added Dr. Ingelfinger, professor of pediatrics, Harvard Medical School, consultant in pediatric nephrology, Massachusetts General Hospital, Boston, and deputy editor, The New England Journal of Medicine.
However, “even 2 years, in the case of STEP 5, and ~68 weeks in the case of STEP 8, may not be long enough to know whether semaglutide is as promising as these brief summaries (abstracts) suggest,” she cautioned.
“Obesity is a chronic condition, and very long-term therapy and management are required,” Dr. Ingelfinger continued.
“Further, it is hard to generalize when gastrointestinal adverse events are common in a study,” she said. For example, in STEP 8, they were just as common with semaglutide as with the comparator liraglutide, she noted.
“The racial and ethnic representativeness of these studies does not reflect population distributions in the U.S., limiting generalization,” she continued.
“So, there remain caveats in interpreting these data.”
STEP 5 weight loss efficacy and safety at 2 years
Garvey reported that STEP 5 was a phase 3b trial that randomized 304 adults in the United States, Canada, Hungary, Italy, and Spain, who were 18 years and older, with a body mass index (BMI) ≥27 kg/m2 with at least one weight-related comorbidity (hypertension, dyslipidemia, obstructive sleep apnea, or cardiovascular disease) or a BMI ≥30 kg/m2, without type 2 diabetes, to receive semaglutide or placebo plus lifestyle intervention.
Most participants were women (78%) and White (93%). On average, they were 47 years old, weighed 106 kg (223.7 pounds), had a BMI of 38.5 kg/m2, a waist circumference of 115.7 cm (45.6 inches), and an A1c of 5.7%.
A total of 87% of patients in the semaglutide group and 73% of patients in the placebo group completed the trial.
At 104 weeks, participants were more likely to lose ≥10%, ≥15%, and ≥20% of body weight with semaglutide versus placebo (61.8% vs. 13.3%, 52.1% vs. 7.0%, and 36.1% vs. 2.3%, respectively; P < .0001 for all).
Patients in the semaglutide group had greater health improvements in cardiovascular risk factors (waist circumference, systolic and diastolic blood pressure, and C-reactive protein) and metabolic risk factors (A1c, fasting plasma glucose, fasting serum insulin, and triglycerides) than those in the placebo group (P < .05 for all).
Safety and tolerability were consistent with adverse events seen with this drug class, with no new safety signals.
Control of eating questionnaire findings at 2 years in STEP 5
Dr. Wharton and colleagues assessed changes in responses to the Control of Eating questionnaire at baseline and at 20, 52, and 104 weeks in patients from the U.S. and Canada in the STEP 5 trial (88 patients in the semaglutide group and 86 patients in the placebo group).
The questionnaire consisted of 19 questions grouped into four categories: control of food cravings, craving for savory foods (salty and spicy, dairy, or starchy foods), craving for sweet foods (chocolate, sweet foods, or fruit/fruit juice), and positive mood.
At week 104, patients in the semaglutide group had significantly greater improvements in scores for craving for salty and spicy, dairy, and starchy foods, and resisting cravings.
Semaglutide versus liraglutide, 68-week efficacy and safety in STEP 8
STEP 8 randomized 338 U.S. adults without diabetes and a BMI of ≥27 kg/m2 plus one or more weight-related comorbidities or a BMI of ≥30 kg/m2 3:1 to semaglutide 2.4 mg once weekly (n = 126) or matching placebo, or 3:1 liraglutide 3.0 mg once daily (n = 127) or matching placebo, plus lifestyle intervention.
Most participants were women (78%) and were a mean age of 49, had a mean body weight of 104.5 kg, and had a mean BMI of 37.5 kg/m2.
In STEP 8, more participants achieved ≥10%, ≥15%, and ≥20% weight loss with semaglutide than with liraglutide (70.9% vs. 25.6%, 55.6% vs. 12.0%, and 38.5% vs. 6.0%, respectively; P < .001 for all odds ratios).
Semaglutide improved waist circumference, A1c, and C-reactive protein versus liraglutide (unadjusted P < .001 for all).
Gastrointestinal adverse events were reported by 84% and 83% of participants receiving semaglutide and liraglutide, respectively. Most events were mild/moderate and transient, with prevalence declining over time.
Fewer participants stopped treatment due to adverse events with semaglutide than liraglutide (3.2% vs. 12.6%).
Dr. Garvey has reported serving as a site principal investigator for multicentered clinical trials sponsored by his university and funded by Eli Lilly, Novo Nordisk, and Pfizer. Dr. Wharton has reported financial ties to Novo Nordisk, Bausch Health Canada, Eli Lily, and Boehringer Ingelheim Canada. Dr. Rubino has reported ties to Boehringer Ingelheim and AstraZeneca. Dr. Ingelfinger has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Liraglutide effective against weight regain after gastric bypass
The glucagon-like peptide-1 (GLP-1) receptor agonist liraglutide (Saxenda, Novo Nordisk) was safe and effective for treating weight regain after Roux-en-Y gastric bypass (RYGB), in a randomized controlled trial.
That is, 132 patients who had lost at least 25% of their initial weight after RYGB and then gained at least 10% back were randomized 2:1 to receive liraglutide plus frequent lifestyle advice from a registered dietitian or lifestyle advice alone.
After a year, 69%, 48%, and 24% of patients who had received liraglutide lost at least 5%, 10%, and 15% of their study entry weight, respectively. In contrast, only 5% of patients in the control group lost at least 5% of their weight and none lost at least 10% of their weight.
“Liraglutide 3.0 mg/day, with lifestyle modification, was significantly more effective than placebo in treating weight regain after RYGB without increased risk of serious adverse events,” Holly F. Lofton, MD, summarized this week in an oral session at ObesityWeek®, the annual meeting of The Obesity Society.
Dr. Lofton, a clinical associate professor of surgery and medicine, and director, weight management program, NYU, Langone Health, explained to this news organization that she initiated the study after attending a “packed” session about post bariatric surgery weight regain at a prior American Society of Metabolic and Bariatric Surgery conference.
“The lecturers recommended conservative measures (such as reiterating the diet recommendations, exercise, [and] counseling), and revisional surgeries,” she said in an email, but at the time “there was no literature that provided direction on which pharmacotherapies are best for this population.”
It was known that decreases in endogenous GLP-1 levels coincide with weight regain, and liraglutide (Saxenda) was the only GLP-1 agonist approved for chronic weight management at the time, so she devised the current study protocol.
The findings are especially helpful for patients who are not candidates for bariatric surgery revisions, she noted. Further research is needed to investigate the effect of newer GLP-1 agonists, such as semaglutide (Wegovy), on weight regain following different types of bariatric surgery.
Asked to comment, Wendy C. King, PhD, who was not involved with this research, said that more than two-thirds of patients treated with 3 mg/day subcutaneous liraglutide injections in the current study lost at least 5% of their initial weight a year later, and 20% of them attained a weight as low as, or lower than, their lowest weight after bariatric surgery (nadir weight).
“The fact that both groups received lifestyle counseling from registered dietitians for just over a year, but only patients in the liraglutide group lost weight, on average, speaks to the difficulty of losing weight following weight regain post–bariatric surgery,” added Dr. King, an associate professor of epidemiology at the University of Pittsburgh, Pennsylvania.
This study “provides data that may help clinicians and patients understand the potential effect of adding liraglutide 3.0 mg/day to their weight loss efforts,” she told this news organization in an email.
However, “given that 42% of those on liraglutide reported gastrointestinal-related side effects, patients should also be counseled on this potential outcome and given suggestions for how to minimize such side effects,” Dr. King suggested.
Weight regain common, repeat surgery entails risk
Weight regain is common even years after bariatric surgery. Repeat surgery entails some risk, and lifestyle approaches alone are rarely successful in reversing weight regain, Dr. Lofton told the audience.
The researchers enrolled 132 adults who had a mean weight of 134 kg (295 pounds) when they underwent RYGB, and who lost at least 25% of their initial weight (mean weight loss of 38%) after the surgery, but who also regained at least 10% of their initial weight.
At enrollment of the current study (baseline), the patients had had RYGB 18 months to 10 years earlier (mean 5.7 years earlier) and now had a mean weight of 99 kg (218 pounds) and a mean BMI of 35.6 kg/m2. None of the patients had diabetes.
The patients were randomized to receive liraglutide (n = 89, 84% women) or placebo (n = 43, 88% women) for 56 weeks.
They were a mean age of 48 years, and about 59% were White and 25% were Black.
All patients had clinic visits every 3 months where they received lifestyle counseling from a registered dietitian.
At 12 months, patients in the liraglutide group had lost a mean of 8.8% of their baseline weight, whereas those in the placebo group had gained a mean of 1.48% of their baseline weight.
There were no significant between-group differences in cardiometabolic variables.
None of the patients in the control group attained a weight that was as low as their nadir weight after RYGB.
The rates of nausea (25%), constipation (16%), and abdominal pain (10%) in the liraglutide group were higher than in the placebo group (7%, 14%, and 5%, respectively) but similar to rates of gastrointestinal side effects in other trials of this agent.
Dr. Lofton has disclosed receiving consulting fees and being on a speaker bureau for Novo Nordisk and receiving research funds from Boehringer Ingelheim, Eli Lilly, and Novo Nordisk. Dr. King has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
The glucagon-like peptide-1 (GLP-1) receptor agonist liraglutide (Saxenda, Novo Nordisk) was safe and effective for treating weight regain after Roux-en-Y gastric bypass (RYGB), in a randomized controlled trial.
That is, 132 patients who had lost at least 25% of their initial weight after RYGB and then gained at least 10% back were randomized 2:1 to receive liraglutide plus frequent lifestyle advice from a registered dietitian or lifestyle advice alone.
After a year, 69%, 48%, and 24% of patients who had received liraglutide lost at least 5%, 10%, and 15% of their study entry weight, respectively. In contrast, only 5% of patients in the control group lost at least 5% of their weight and none lost at least 10% of their weight.
“Liraglutide 3.0 mg/day, with lifestyle modification, was significantly more effective than placebo in treating weight regain after RYGB without increased risk of serious adverse events,” Holly F. Lofton, MD, summarized this week in an oral session at ObesityWeek®, the annual meeting of The Obesity Society.
Dr. Lofton, a clinical associate professor of surgery and medicine, and director, weight management program, NYU, Langone Health, explained to this news organization that she initiated the study after attending a “packed” session about post bariatric surgery weight regain at a prior American Society of Metabolic and Bariatric Surgery conference.
“The lecturers recommended conservative measures (such as reiterating the diet recommendations, exercise, [and] counseling), and revisional surgeries,” she said in an email, but at the time “there was no literature that provided direction on which pharmacotherapies are best for this population.”
It was known that decreases in endogenous GLP-1 levels coincide with weight regain, and liraglutide (Saxenda) was the only GLP-1 agonist approved for chronic weight management at the time, so she devised the current study protocol.
The findings are especially helpful for patients who are not candidates for bariatric surgery revisions, she noted. Further research is needed to investigate the effect of newer GLP-1 agonists, such as semaglutide (Wegovy), on weight regain following different types of bariatric surgery.
Asked to comment, Wendy C. King, PhD, who was not involved with this research, said that more than two-thirds of patients treated with 3 mg/day subcutaneous liraglutide injections in the current study lost at least 5% of their initial weight a year later, and 20% of them attained a weight as low as, or lower than, their lowest weight after bariatric surgery (nadir weight).
“The fact that both groups received lifestyle counseling from registered dietitians for just over a year, but only patients in the liraglutide group lost weight, on average, speaks to the difficulty of losing weight following weight regain post–bariatric surgery,” added Dr. King, an associate professor of epidemiology at the University of Pittsburgh, Pennsylvania.
This study “provides data that may help clinicians and patients understand the potential effect of adding liraglutide 3.0 mg/day to their weight loss efforts,” she told this news organization in an email.
However, “given that 42% of those on liraglutide reported gastrointestinal-related side effects, patients should also be counseled on this potential outcome and given suggestions for how to minimize such side effects,” Dr. King suggested.
Weight regain common, repeat surgery entails risk
Weight regain is common even years after bariatric surgery. Repeat surgery entails some risk, and lifestyle approaches alone are rarely successful in reversing weight regain, Dr. Lofton told the audience.
The researchers enrolled 132 adults who had a mean weight of 134 kg (295 pounds) when they underwent RYGB, and who lost at least 25% of their initial weight (mean weight loss of 38%) after the surgery, but who also regained at least 10% of their initial weight.
At enrollment of the current study (baseline), the patients had had RYGB 18 months to 10 years earlier (mean 5.7 years earlier) and now had a mean weight of 99 kg (218 pounds) and a mean BMI of 35.6 kg/m2. None of the patients had diabetes.
The patients were randomized to receive liraglutide (n = 89, 84% women) or placebo (n = 43, 88% women) for 56 weeks.
They were a mean age of 48 years, and about 59% were White and 25% were Black.
All patients had clinic visits every 3 months where they received lifestyle counseling from a registered dietitian.
At 12 months, patients in the liraglutide group had lost a mean of 8.8% of their baseline weight, whereas those in the placebo group had gained a mean of 1.48% of their baseline weight.
There were no significant between-group differences in cardiometabolic variables.
None of the patients in the control group attained a weight that was as low as their nadir weight after RYGB.
The rates of nausea (25%), constipation (16%), and abdominal pain (10%) in the liraglutide group were higher than in the placebo group (7%, 14%, and 5%, respectively) but similar to rates of gastrointestinal side effects in other trials of this agent.
Dr. Lofton has disclosed receiving consulting fees and being on a speaker bureau for Novo Nordisk and receiving research funds from Boehringer Ingelheim, Eli Lilly, and Novo Nordisk. Dr. King has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
The glucagon-like peptide-1 (GLP-1) receptor agonist liraglutide (Saxenda, Novo Nordisk) was safe and effective for treating weight regain after Roux-en-Y gastric bypass (RYGB), in a randomized controlled trial.
That is, 132 patients who had lost at least 25% of their initial weight after RYGB and then gained at least 10% back were randomized 2:1 to receive liraglutide plus frequent lifestyle advice from a registered dietitian or lifestyle advice alone.
After a year, 69%, 48%, and 24% of patients who had received liraglutide lost at least 5%, 10%, and 15% of their study entry weight, respectively. In contrast, only 5% of patients in the control group lost at least 5% of their weight and none lost at least 10% of their weight.
“Liraglutide 3.0 mg/day, with lifestyle modification, was significantly more effective than placebo in treating weight regain after RYGB without increased risk of serious adverse events,” Holly F. Lofton, MD, summarized this week in an oral session at ObesityWeek®, the annual meeting of The Obesity Society.
Dr. Lofton, a clinical associate professor of surgery and medicine, and director, weight management program, NYU, Langone Health, explained to this news organization that she initiated the study after attending a “packed” session about post bariatric surgery weight regain at a prior American Society of Metabolic and Bariatric Surgery conference.
“The lecturers recommended conservative measures (such as reiterating the diet recommendations, exercise, [and] counseling), and revisional surgeries,” she said in an email, but at the time “there was no literature that provided direction on which pharmacotherapies are best for this population.”
It was known that decreases in endogenous GLP-1 levels coincide with weight regain, and liraglutide (Saxenda) was the only GLP-1 agonist approved for chronic weight management at the time, so she devised the current study protocol.
The findings are especially helpful for patients who are not candidates for bariatric surgery revisions, she noted. Further research is needed to investigate the effect of newer GLP-1 agonists, such as semaglutide (Wegovy), on weight regain following different types of bariatric surgery.
Asked to comment, Wendy C. King, PhD, who was not involved with this research, said that more than two-thirds of patients treated with 3 mg/day subcutaneous liraglutide injections in the current study lost at least 5% of their initial weight a year later, and 20% of them attained a weight as low as, or lower than, their lowest weight after bariatric surgery (nadir weight).
“The fact that both groups received lifestyle counseling from registered dietitians for just over a year, but only patients in the liraglutide group lost weight, on average, speaks to the difficulty of losing weight following weight regain post–bariatric surgery,” added Dr. King, an associate professor of epidemiology at the University of Pittsburgh, Pennsylvania.
This study “provides data that may help clinicians and patients understand the potential effect of adding liraglutide 3.0 mg/day to their weight loss efforts,” she told this news organization in an email.
However, “given that 42% of those on liraglutide reported gastrointestinal-related side effects, patients should also be counseled on this potential outcome and given suggestions for how to minimize such side effects,” Dr. King suggested.
Weight regain common, repeat surgery entails risk
Weight regain is common even years after bariatric surgery. Repeat surgery entails some risk, and lifestyle approaches alone are rarely successful in reversing weight regain, Dr. Lofton told the audience.
The researchers enrolled 132 adults who had a mean weight of 134 kg (295 pounds) when they underwent RYGB, and who lost at least 25% of their initial weight (mean weight loss of 38%) after the surgery, but who also regained at least 10% of their initial weight.
At enrollment of the current study (baseline), the patients had had RYGB 18 months to 10 years earlier (mean 5.7 years earlier) and now had a mean weight of 99 kg (218 pounds) and a mean BMI of 35.6 kg/m2. None of the patients had diabetes.
The patients were randomized to receive liraglutide (n = 89, 84% women) or placebo (n = 43, 88% women) for 56 weeks.
They were a mean age of 48 years, and about 59% were White and 25% were Black.
All patients had clinic visits every 3 months where they received lifestyle counseling from a registered dietitian.
At 12 months, patients in the liraglutide group had lost a mean of 8.8% of their baseline weight, whereas those in the placebo group had gained a mean of 1.48% of their baseline weight.
There were no significant between-group differences in cardiometabolic variables.
None of the patients in the control group attained a weight that was as low as their nadir weight after RYGB.
The rates of nausea (25%), constipation (16%), and abdominal pain (10%) in the liraglutide group were higher than in the placebo group (7%, 14%, and 5%, respectively) but similar to rates of gastrointestinal side effects in other trials of this agent.
Dr. Lofton has disclosed receiving consulting fees and being on a speaker bureau for Novo Nordisk and receiving research funds from Boehringer Ingelheim, Eli Lilly, and Novo Nordisk. Dr. King has reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM OBESITY WEEK 2021