I’m not hiding anything.

Occasionally I deal with patients and families who seem to think I have some miracle cure for a condition that I’m not telling them about.

I promise, I don’t work that way. Besides the obvious ethical issues, why would I? What could I possibly gain from doing that?

The trouble is that people are blanketed by news headlines, some reputable and some not, about a research study suggesting a new direction in treatment, or that a new drug in development has promise. Often these stories are forwarded to them by well-meaning relatives and friends, or just show up in their social media feed.

While some of these findings may actually lead somewhere, the vast majority don’t. In my career I’ve seen statins touted as potential treatments for MS and Alzheimer’s disease, and vilified as causes of dementia and peripheral neuropathy, all disproved or (to date) still up in the air.

But nonmedical people don’t understand that. It made the news, so it must mean something. I have no problem trying to explain this to them, but it’s never easy.

It’s even harder to explain to the ones who’ve already purchased a costly over-the-counter placebo for such a condition that they wasted their money.

We live in a world of amazing technological achievements, but that doesn’t mean all diseases have been cured and problems fixed. Far from it.

New discoveries are made, but a lot of times it’s a very slow journey to find the solution. One discovery may not lead to THE answer, but hopefully will get you closer to it.

That generally doesn’t happen overnight. The mathematical problem of Goldbach’s Conjecture has been around since 1742 and still hasn’t been definitively answered.

Medicine isn’t math, either. The people and families dealing with these conditions want answers. I don’t blame them. So do I. Believe me, there would be nothing that would bring me more joy as a doctor than to be able to give someone with a serious diagnosis the comfort that comes with saying it’s also curable.

I never have, and never would, withhold such a thing from a patient. Ever. I just wish some of them would believe me when I say that.

Dr. Block has a solo neurology practice in Scottsdale, Ariz.

I’m not hiding anything.

Occasionally I deal with patients and families who seem to think I have some miracle cure for a condition that I’m not telling them about.

I promise, I don’t work that way. Besides the obvious ethical issues, why would I? What could I possibly gain from doing that?

The trouble is that people are blanketed by news headlines, some reputable and some not, about a research study suggesting a new direction in treatment, or that a new drug in development has promise. Often these stories are forwarded to them by well-meaning relatives and friends, or just show up in their social media feed.

While some of these findings may actually lead somewhere, the vast majority don’t. In my career I’ve seen statins touted as potential treatments for MS and Alzheimer’s disease, and vilified as causes of dementia and peripheral neuropathy, all disproved or (to date) still up in the air.

But nonmedical people don’t understand that. It made the news, so it must mean something. I have no problem trying to explain this to them, but it’s never easy.

It’s even harder to explain to the ones who’ve already purchased a costly over-the-counter placebo for such a condition that they wasted their money.

We live in a world of amazing technological achievements, but that doesn’t mean all diseases have been cured and problems fixed. Far from it.

New discoveries are made, but a lot of times it’s a very slow journey to find the solution. One discovery may not lead to THE answer, but hopefully will get you closer to it.

That generally doesn’t happen overnight. The mathematical problem of Goldbach’s Conjecture has been around since 1742 and still hasn’t been definitively answered.

Medicine isn’t math, either. The people and families dealing with these conditions want answers. I don’t blame them. So do I. Believe me, there would be nothing that would bring me more joy as a doctor than to be able to give someone with a serious diagnosis the comfort that comes with saying it’s also curable.

I never have, and never would, withhold such a thing from a patient. Ever. I just wish some of them would believe me when I say that.

Dr. Block has a solo neurology practice in Scottsdale, Ariz.

I’m not hiding anything.

Occasionally I deal with patients and families who seem to think I have some miracle cure for a condition that I’m not telling them about.

I promise, I don’t work that way. Besides the obvious ethical issues, why would I? What could I possibly gain from doing that?

The trouble is that people are blanketed by news headlines, some reputable and some not, about a research study suggesting a new direction in treatment, or that a new drug in development has promise. Often these stories are forwarded to them by well-meaning relatives and friends, or just show up in their social media feed.

While some of these findings may actually lead somewhere, the vast majority don’t. In my career I’ve seen statins touted as potential treatments for MS and Alzheimer’s disease, and vilified as causes of dementia and peripheral neuropathy, all disproved or (to date) still up in the air.

But nonmedical people don’t understand that. It made the news, so it must mean something. I have no problem trying to explain this to them, but it’s never easy.

It’s even harder to explain to the ones who’ve already purchased a costly over-the-counter placebo for such a condition that they wasted their money.

We live in a world of amazing technological achievements, but that doesn’t mean all diseases have been cured and problems fixed. Far from it.

New discoveries are made, but a lot of times it’s a very slow journey to find the solution. One discovery may not lead to THE answer, but hopefully will get you closer to it.

That generally doesn’t happen overnight. The mathematical problem of Goldbach’s Conjecture has been around since 1742 and still hasn’t been definitively answered.

Medicine isn’t math, either. The people and families dealing with these conditions want answers. I don’t blame them. So do I. Believe me, there would be nothing that would bring me more joy as a doctor than to be able to give someone with a serious diagnosis the comfort that comes with saying it’s also curable.

I never have, and never would, withhold such a thing from a patient. Ever. I just wish some of them would believe me when I say that.

Dr. Block has a solo neurology practice in Scottsdale, Ariz.

Poly-L-lactic acid (PLLA) is a synthetic biologic polymer that is suspended in solution and can be injected for soft-tissue augmentation. The stimulatory molecule functions to increase collagen synthesis as a by-product of its degradation.¹ Poly-L-lactic acid measures 40 to 63 μm and is irregularly shaped, which inhibits product mobility and allows for precise tissue augmentation.² Clinical trials of injectable PLLA have proven its safety with no reported cases of infection, allergies, or serious adverse reactions.^3-5 The most common patient concerns generally are transient in nature, such as swelling, tenderness, pain, bruising, and bleeding. Persistent adverse events of PLLA primarily are papule and nodule formation.⁶ Clinical trials showed a variable incidence of papule/nodule formation between 6% and 44%.² Nodule formation remains a major challenge to achieving optimal results from injectable PLLA. We present a case in which a hyperdiluted formulation of PLLA produced a relatively acute (3-week) onset of multiple nodule formations dispersed on the anterior neck. The nodules were resistant to less-invasive treatment modalities and were further requested to be surgically excised.

Case Report

A 38-year-old woman presented for soft-tissue augmentation of the anterior neck using PLLA to achieve correction of skin laxity and static rhytides. She had a history of successful PLLA injections in the temples, knees, chest, and buttocks over a 5-year period. Forty-eight hours prior to injection, 1 PLLA vial was hydrated with 7 cc bacteriostatic water by using a continuous rotation suspension method over the 48 hours. On the day of injection, the PLLA was further hyperdiluted with 2 cc of 2% lidocaine and an additional 7 cc of bacteriostatic water, for a total of 16 cc diluent. The product was injected using a cannula in the anterior and lateral neck. According to the patient, 3 weeks after the procedure she noticed that some nodules began to form at the cannula insertion sites, while others formed distant from those sites; a total of 10 nodules had formed on the anterior neck (Figure 1).

The bacteriostatic water, lidocaine, and PLLA vial were all confirmed not to be expired. The manufacturer was contacted, and no other adverse reactions have been reported with this particular lot number of PLLA. The nodules initially were treated with injections of large boluses of bacteriostatic saline, which was ineffective. Treatment was then attempted using injections of a solution containing 1.0 mL of 5-fluorouracil (5-FU) 50 mg/mL, 0.4 mL of dexamethasone 4 mg/mL, 0.1 mL of triamcinolone 10 mg/mL, and 0.3 mL hyaluronidase. A series of 4 injections was performed in 2- to 4-week intervals. Two of the nodules resolved completely with this treatment. The remaining 8 nodules subjectively improved in size and softened to palpation but did not resolve completely. At 2 of the injection sites, treatment was complicated with steroid atrophy of the overlying skin. At the patient’s request, the remaining nodules were surgically excised (Figure 2). Histopathology revealed exogenous foreign material consistent with dermal filler (Figure 3).

Comment

Causes of Nodule Formation—Two factors that could contribute to nodule formation are inadequate dispersion of molecules and an insufficient volume of dilution. One study demonstrated that hydration for at least 24 hours is required for adequate PLLA dispersion. Furthermore, sonification for 5 minutes after a 2-hour hydration disperses molecules similarly to the 48-hour hydration.⁷ The PLLA in the current case was hydrated for 48 hours using a continuous rotation suspension method. Therefore, this likely did not play a role in our patient’s nodule formation. The volume of dilution has been shown to impact the incidence of nodule formation.⁸ At present, most injectors (60.4%) reconstitute each vial of PLLA with 9 to 10 mL of diluent.⁹ The PLLA in our patient was reconstituted with 16 mL; therefore, we believe that the anatomic location was the main contributor of nodule formation.

Fillers should be injected in the subcutaneous or deep dermal plane of tissue.¹⁰ The platysma is a superficial muscle that is intimately involved with the overlying skin of the anterior neck, and injections in this area could inadvertently be intramuscular. Intramuscular injections have a higher incidence of nodule formation.¹ Our patient had prior PLLA injections without adverse reactions in numerous other sites, supporting the claim that the anterior neck is prone to nodule formation from PLLA injections.

Management of Noninflammatory Nodules—Initial treatment of nodules with injections of saline was ineffective. This treatment can be used in an attempt to disperse the product. Treatment was then attempted with injections of a solution containing 5-FU, dexamethasone, triamcinolone, and hyaluronidase. Combination steroid therapy may be superior to monotherapy.¹¹ Dexamethasone may exhibit a cytoprotective effect on cells such as fibroblasts when used in combination with triamcinolone; monotherapy steroid use with triamcinolone alone induced fibroblast apoptosis at a much higher level.¹² Hyaluronidase works by breaking cross-links in hyaluronic acid, a glycosaminoglycan polysaccharide prevalent in the skin and connective tissue, which increases tissue permeability and aids in delivery of the other injected fluids.¹³ 5-Fluorouracil is an antimetabolite that may aid in treating nodules by discouraging additional fibroblast activity and fibrosis.¹⁴

The combination of 5-FU, dexamethasone, and triamcinolone has been shown to be successful in treating noninflammatory nodules in as few as 1 treatment.¹⁴ In our patient, hyaluronidase also was used in an attempt to aid delivery of the other injected fluids. If nodules do not resolve with 1 injection, it is recommended to wait at least 8 weeks before repeating the injection to prevent steroid atrophy of the overlying skin. In our patient, the intramuscular placement of the filler contributed to the nodules being resistant to this treatment. During excision, the nodules were tightly embedded in the underlying tissue, which may have prevented the solution from being delivered to the nodule (Figure 2).

Conclusion

Injectable PLLA is approved by the US Food and Drug Administration for soft-tissue augmentation of deep nasolabial folds and facial wrinkles. Off-label use of this product may cause higher incidence of nodule formation. Injectors should be cautious of injecting into the anterior neck. If nodules do form, treatment can be attempted with injections of saline. If that treatment fails, another treatment option is injection(s) of a mixture of 5-FU, dexamethasone, triamcinolone, and hyaluronidase separated by 8-week intervals. Finally, surgical excision is a viable treatment option, as presented in our case.

Poly-L-lactic acid (PLLA) is a synthetic biologic polymer that is suspended in solution and can be injected for soft-tissue augmentation. The stimulatory molecule functions to increase collagen synthesis as a by-product of its degradation.¹ Poly-L-lactic acid measures 40 to 63 μm and is irregularly shaped, which inhibits product mobility and allows for precise tissue augmentation.² Clinical trials of injectable PLLA have proven its safety with no reported cases of infection, allergies, or serious adverse reactions.^3-5 The most common patient concerns generally are transient in nature, such as swelling, tenderness, pain, bruising, and bleeding. Persistent adverse events of PLLA primarily are papule and nodule formation.⁶ Clinical trials showed a variable incidence of papule/nodule formation between 6% and 44%.² Nodule formation remains a major challenge to achieving optimal results from injectable PLLA. We present a case in which a hyperdiluted formulation of PLLA produced a relatively acute (3-week) onset of multiple nodule formations dispersed on the anterior neck. The nodules were resistant to less-invasive treatment modalities and were further requested to be surgically excised.

Case Report

A 38-year-old woman presented for soft-tissue augmentation of the anterior neck using PLLA to achieve correction of skin laxity and static rhytides. She had a history of successful PLLA injections in the temples, knees, chest, and buttocks over a 5-year period. Forty-eight hours prior to injection, 1 PLLA vial was hydrated with 7 cc bacteriostatic water by using a continuous rotation suspension method over the 48 hours. On the day of injection, the PLLA was further hyperdiluted with 2 cc of 2% lidocaine and an additional 7 cc of bacteriostatic water, for a total of 16 cc diluent. The product was injected using a cannula in the anterior and lateral neck. According to the patient, 3 weeks after the procedure she noticed that some nodules began to form at the cannula insertion sites, while others formed distant from those sites; a total of 10 nodules had formed on the anterior neck (Figure 1).

The bacteriostatic water, lidocaine, and PLLA vial were all confirmed not to be expired. The manufacturer was contacted, and no other adverse reactions have been reported with this particular lot number of PLLA. The nodules initially were treated with injections of large boluses of bacteriostatic saline, which was ineffective. Treatment was then attempted using injections of a solution containing 1.0 mL of 5-fluorouracil (5-FU) 50 mg/mL, 0.4 mL of dexamethasone 4 mg/mL, 0.1 mL of triamcinolone 10 mg/mL, and 0.3 mL hyaluronidase. A series of 4 injections was performed in 2- to 4-week intervals. Two of the nodules resolved completely with this treatment. The remaining 8 nodules subjectively improved in size and softened to palpation but did not resolve completely. At 2 of the injection sites, treatment was complicated with steroid atrophy of the overlying skin. At the patient’s request, the remaining nodules were surgically excised (Figure 2). Histopathology revealed exogenous foreign material consistent with dermal filler (Figure 3).

Comment

Causes of Nodule Formation—Two factors that could contribute to nodule formation are inadequate dispersion of molecules and an insufficient volume of dilution. One study demonstrated that hydration for at least 24 hours is required for adequate PLLA dispersion. Furthermore, sonification for 5 minutes after a 2-hour hydration disperses molecules similarly to the 48-hour hydration.⁷ The PLLA in the current case was hydrated for 48 hours using a continuous rotation suspension method. Therefore, this likely did not play a role in our patient’s nodule formation. The volume of dilution has been shown to impact the incidence of nodule formation.⁸ At present, most injectors (60.4%) reconstitute each vial of PLLA with 9 to 10 mL of diluent.⁹ The PLLA in our patient was reconstituted with 16 mL; therefore, we believe that the anatomic location was the main contributor of nodule formation.

Fillers should be injected in the subcutaneous or deep dermal plane of tissue.¹⁰ The platysma is a superficial muscle that is intimately involved with the overlying skin of the anterior neck, and injections in this area could inadvertently be intramuscular. Intramuscular injections have a higher incidence of nodule formation.¹ Our patient had prior PLLA injections without adverse reactions in numerous other sites, supporting the claim that the anterior neck is prone to nodule formation from PLLA injections.

Management of Noninflammatory Nodules—Initial treatment of nodules with injections of saline was ineffective. This treatment can be used in an attempt to disperse the product. Treatment was then attempted with injections of a solution containing 5-FU, dexamethasone, triamcinolone, and hyaluronidase. Combination steroid therapy may be superior to monotherapy.¹¹ Dexamethasone may exhibit a cytoprotective effect on cells such as fibroblasts when used in combination with triamcinolone; monotherapy steroid use with triamcinolone alone induced fibroblast apoptosis at a much higher level.¹² Hyaluronidase works by breaking cross-links in hyaluronic acid, a glycosaminoglycan polysaccharide prevalent in the skin and connective tissue, which increases tissue permeability and aids in delivery of the other injected fluids.¹³ 5-Fluorouracil is an antimetabolite that may aid in treating nodules by discouraging additional fibroblast activity and fibrosis.¹⁴

The combination of 5-FU, dexamethasone, and triamcinolone has been shown to be successful in treating noninflammatory nodules in as few as 1 treatment.¹⁴ In our patient, hyaluronidase also was used in an attempt to aid delivery of the other injected fluids. If nodules do not resolve with 1 injection, it is recommended to wait at least 8 weeks before repeating the injection to prevent steroid atrophy of the overlying skin. In our patient, the intramuscular placement of the filler contributed to the nodules being resistant to this treatment. During excision, the nodules were tightly embedded in the underlying tissue, which may have prevented the solution from being delivered to the nodule (Figure 2).

Conclusion

Injectable PLLA is approved by the US Food and Drug Administration for soft-tissue augmentation of deep nasolabial folds and facial wrinkles. Off-label use of this product may cause higher incidence of nodule formation. Injectors should be cautious of injecting into the anterior neck. If nodules do form, treatment can be attempted with injections of saline. If that treatment fails, another treatment option is injection(s) of a mixture of 5-FU, dexamethasone, triamcinolone, and hyaluronidase separated by 8-week intervals. Finally, surgical excision is a viable treatment option, as presented in our case.

Poly-L-lactic acid (PLLA) is a synthetic biologic polymer that is suspended in solution and can be injected for soft-tissue augmentation. The stimulatory molecule functions to increase collagen synthesis as a by-product of its degradation.¹ Poly-L-lactic acid measures 40 to 63 μm and is irregularly shaped, which inhibits product mobility and allows for precise tissue augmentation.² Clinical trials of injectable PLLA have proven its safety with no reported cases of infection, allergies, or serious adverse reactions.^3-5 The most common patient concerns generally are transient in nature, such as swelling, tenderness, pain, bruising, and bleeding. Persistent adverse events of PLLA primarily are papule and nodule formation.⁶ Clinical trials showed a variable incidence of papule/nodule formation between 6% and 44%.² Nodule formation remains a major challenge to achieving optimal results from injectable PLLA. We present a case in which a hyperdiluted formulation of PLLA produced a relatively acute (3-week) onset of multiple nodule formations dispersed on the anterior neck. The nodules were resistant to less-invasive treatment modalities and were further requested to be surgically excised.

Case Report

A 38-year-old woman presented for soft-tissue augmentation of the anterior neck using PLLA to achieve correction of skin laxity and static rhytides. She had a history of successful PLLA injections in the temples, knees, chest, and buttocks over a 5-year period. Forty-eight hours prior to injection, 1 PLLA vial was hydrated with 7 cc bacteriostatic water by using a continuous rotation suspension method over the 48 hours. On the day of injection, the PLLA was further hyperdiluted with 2 cc of 2% lidocaine and an additional 7 cc of bacteriostatic water, for a total of 16 cc diluent. The product was injected using a cannula in the anterior and lateral neck. According to the patient, 3 weeks after the procedure she noticed that some nodules began to form at the cannula insertion sites, while others formed distant from those sites; a total of 10 nodules had formed on the anterior neck (Figure 1).

The bacteriostatic water, lidocaine, and PLLA vial were all confirmed not to be expired. The manufacturer was contacted, and no other adverse reactions have been reported with this particular lot number of PLLA. The nodules initially were treated with injections of large boluses of bacteriostatic saline, which was ineffective. Treatment was then attempted using injections of a solution containing 1.0 mL of 5-fluorouracil (5-FU) 50 mg/mL, 0.4 mL of dexamethasone 4 mg/mL, 0.1 mL of triamcinolone 10 mg/mL, and 0.3 mL hyaluronidase. A series of 4 injections was performed in 2- to 4-week intervals. Two of the nodules resolved completely with this treatment. The remaining 8 nodules subjectively improved in size and softened to palpation but did not resolve completely. At 2 of the injection sites, treatment was complicated with steroid atrophy of the overlying skin. At the patient’s request, the remaining nodules were surgically excised (Figure 2). Histopathology revealed exogenous foreign material consistent with dermal filler (Figure 3).

Comment

Causes of Nodule Formation—Two factors that could contribute to nodule formation are inadequate dispersion of molecules and an insufficient volume of dilution. One study demonstrated that hydration for at least 24 hours is required for adequate PLLA dispersion. Furthermore, sonification for 5 minutes after a 2-hour hydration disperses molecules similarly to the 48-hour hydration.⁷ The PLLA in the current case was hydrated for 48 hours using a continuous rotation suspension method. Therefore, this likely did not play a role in our patient’s nodule formation. The volume of dilution has been shown to impact the incidence of nodule formation.⁸ At present, most injectors (60.4%) reconstitute each vial of PLLA with 9 to 10 mL of diluent.⁹ The PLLA in our patient was reconstituted with 16 mL; therefore, we believe that the anatomic location was the main contributor of nodule formation.

Fillers should be injected in the subcutaneous or deep dermal plane of tissue.¹⁰ The platysma is a superficial muscle that is intimately involved with the overlying skin of the anterior neck, and injections in this area could inadvertently be intramuscular. Intramuscular injections have a higher incidence of nodule formation.¹ Our patient had prior PLLA injections without adverse reactions in numerous other sites, supporting the claim that the anterior neck is prone to nodule formation from PLLA injections.

Management of Noninflammatory Nodules—Initial treatment of nodules with injections of saline was ineffective. This treatment can be used in an attempt to disperse the product. Treatment was then attempted with injections of a solution containing 5-FU, dexamethasone, triamcinolone, and hyaluronidase. Combination steroid therapy may be superior to monotherapy.¹¹ Dexamethasone may exhibit a cytoprotective effect on cells such as fibroblasts when used in combination with triamcinolone; monotherapy steroid use with triamcinolone alone induced fibroblast apoptosis at a much higher level.¹² Hyaluronidase works by breaking cross-links in hyaluronic acid, a glycosaminoglycan polysaccharide prevalent in the skin and connective tissue, which increases tissue permeability and aids in delivery of the other injected fluids.¹³ 5-Fluorouracil is an antimetabolite that may aid in treating nodules by discouraging additional fibroblast activity and fibrosis.¹⁴

The combination of 5-FU, dexamethasone, and triamcinolone has been shown to be successful in treating noninflammatory nodules in as few as 1 treatment.¹⁴ In our patient, hyaluronidase also was used in an attempt to aid delivery of the other injected fluids. If nodules do not resolve with 1 injection, it is recommended to wait at least 8 weeks before repeating the injection to prevent steroid atrophy of the overlying skin. In our patient, the intramuscular placement of the filler contributed to the nodules being resistant to this treatment. During excision, the nodules were tightly embedded in the underlying tissue, which may have prevented the solution from being delivered to the nodule (Figure 2).

Conclusion

Injectable PLLA is approved by the US Food and Drug Administration for soft-tissue augmentation of deep nasolabial folds and facial wrinkles. Off-label use of this product may cause higher incidence of nodule formation. Injectors should be cautious of injecting into the anterior neck. If nodules do form, treatment can be attempted with injections of saline. If that treatment fails, another treatment option is injection(s) of a mixture of 5-FU, dexamethasone, triamcinolone, and hyaluronidase separated by 8-week intervals. Finally, surgical excision is a viable treatment option, as presented in our case.

DENVER – A new study finds that females with male twins are more likely to suffer from migraines without aura than are those with female twins, even though testosterone is thought to be protective. The findings, presented at the annual meeting of the American Headache Society, also hint at a possible role played by the prenatal environment.

The study marks the first time a large-scale twin dataset has been used to assess sex differences in underlying genetic factors of migraine, lead author Morgan Fitzgerald, a senior research associate at the University of California at San Diego, said in a presentation at the conference. The findings were previously published in Frontiers in Pain Research.
 

More than genetics

The researchers analyzed data regarding 51,872 participants in the Swedish Twin Registry. According to Dr. Fitzgerald, the database is ideal because it is large and includes both genders.

Per the database, female twins were more likely to have migraines without aura than were male twins (17.6% vs. 5.5%, respectively), reflecting global numbers that suggest 18% of females and 6% of males have migraines each year.

To better understand heritability, the researchers compared identical twins with fraternal twins, and looked for gender-related correlations, Dr. Fitzgerald said.

One analysis suggests that migraine is equally heritable in men and women with a broad sense heritability of 0.45 (95% confidence interval [CI], 0.40-0.50). However, another analysis model provides evidence “that there are differences in the underlying genetic factors contributing to migraine across males and females,” she said.

Unexpectedly, the researchers also found that females with male twins were more likely to have migraines than were those with female twins (odds ratio, 1.51, 95% CI, 1.26-1.81) even though males are less affected by the headaches.

“These results suggest that the prominent sex difference in migraine prevalence is not entirely accounted for by genetic factors, while demonstrating that masculinization of the prenatal environment may increase migraine risk for females,” the authors wrote in the published study. “This effect points to a potential prenatal neuroendocrine factor in the development of migraine.”
 

Probing the migraine gender gap

Commenting on the research, University of Texas at Dallas neuroscientist and headache researcher Gregory Dussor, PhD, said the new study is “a very unique approach to address the question of nature versus nurture in migraine. It was well designed and used robust statistical modeling.”

As for the findings, “the conclusion that genetics do not explain sex differences in migraine risk by themselves is not surprising given how big of a role hormones in later life are likely to play in the disease and how many factors there are that can influence hormone levels,” he said.

“On the other hand, the surprising part of the findings was that the presence of a male co-twin increases risk of migraine in females. I would have expected to see the opposite, given the lower prevalence of migraine in males and the seemingly protective role that male hormones can play in migraine.”

Overall, the study adds to data implicating environment and hormones in the migraine gender gap, he said. “One thing I wonder from this study is what influence a female co-twin growing up with a male co-twin can have on migraine susceptibility. That female co-twin may end up with a very different set of childhood experiences than if she was with another female co-twin. Twins generally spend an enormous amount of time together and the same sex versus opposite sex experiences are likely to be quite different. This may have an influence on migraine later in life.”

As for the value of the study in terms of diagnosis, treatment, or prevention of migraine, Dr. Dussor said, “it’s possible it could help to identify risk factors for higher migraine susceptibility but it’s far too early to know how this could be used.”

The authors have no disclosures. Dr. Dussor disclosed an NIH-funded grant to study the role of the hormone prolactin in preclinical migraine models.

DENVER – A new study finds that females with male twins are more likely to suffer from migraines without aura than are those with female twins, even though testosterone is thought to be protective. The findings, presented at the annual meeting of the American Headache Society, also hint at a possible role played by the prenatal environment.

The study marks the first time a large-scale twin dataset has been used to assess sex differences in underlying genetic factors of migraine, lead author Morgan Fitzgerald, a senior research associate at the University of California at San Diego, said in a presentation at the conference. The findings were previously published in Frontiers in Pain Research.
 

More than genetics

The researchers analyzed data regarding 51,872 participants in the Swedish Twin Registry. According to Dr. Fitzgerald, the database is ideal because it is large and includes both genders.

Per the database, female twins were more likely to have migraines without aura than were male twins (17.6% vs. 5.5%, respectively), reflecting global numbers that suggest 18% of females and 6% of males have migraines each year.

To better understand heritability, the researchers compared identical twins with fraternal twins, and looked for gender-related correlations, Dr. Fitzgerald said.

One analysis suggests that migraine is equally heritable in men and women with a broad sense heritability of 0.45 (95% confidence interval [CI], 0.40-0.50). However, another analysis model provides evidence “that there are differences in the underlying genetic factors contributing to migraine across males and females,” she said.

Unexpectedly, the researchers also found that females with male twins were more likely to have migraines than were those with female twins (odds ratio, 1.51, 95% CI, 1.26-1.81) even though males are less affected by the headaches.

“These results suggest that the prominent sex difference in migraine prevalence is not entirely accounted for by genetic factors, while demonstrating that masculinization of the prenatal environment may increase migraine risk for females,” the authors wrote in the published study. “This effect points to a potential prenatal neuroendocrine factor in the development of migraine.”
 

Probing the migraine gender gap

Commenting on the research, University of Texas at Dallas neuroscientist and headache researcher Gregory Dussor, PhD, said the new study is “a very unique approach to address the question of nature versus nurture in migraine. It was well designed and used robust statistical modeling.”

As for the findings, “the conclusion that genetics do not explain sex differences in migraine risk by themselves is not surprising given how big of a role hormones in later life are likely to play in the disease and how many factors there are that can influence hormone levels,” he said.

“On the other hand, the surprising part of the findings was that the presence of a male co-twin increases risk of migraine in females. I would have expected to see the opposite, given the lower prevalence of migraine in males and the seemingly protective role that male hormones can play in migraine.”

Overall, the study adds to data implicating environment and hormones in the migraine gender gap, he said. “One thing I wonder from this study is what influence a female co-twin growing up with a male co-twin can have on migraine susceptibility. That female co-twin may end up with a very different set of childhood experiences than if she was with another female co-twin. Twins generally spend an enormous amount of time together and the same sex versus opposite sex experiences are likely to be quite different. This may have an influence on migraine later in life.”

As for the value of the study in terms of diagnosis, treatment, or prevention of migraine, Dr. Dussor said, “it’s possible it could help to identify risk factors for higher migraine susceptibility but it’s far too early to know how this could be used.”

The authors have no disclosures. Dr. Dussor disclosed an NIH-funded grant to study the role of the hormone prolactin in preclinical migraine models.

DENVER – A new study finds that females with male twins are more likely to suffer from migraines without aura than are those with female twins, even though testosterone is thought to be protective. The findings, presented at the annual meeting of the American Headache Society, also hint at a possible role played by the prenatal environment.

The study marks the first time a large-scale twin dataset has been used to assess sex differences in underlying genetic factors of migraine, lead author Morgan Fitzgerald, a senior research associate at the University of California at San Diego, said in a presentation at the conference. The findings were previously published in Frontiers in Pain Research.
 

More than genetics

The researchers analyzed data regarding 51,872 participants in the Swedish Twin Registry. According to Dr. Fitzgerald, the database is ideal because it is large and includes both genders.

Per the database, female twins were more likely to have migraines without aura than were male twins (17.6% vs. 5.5%, respectively), reflecting global numbers that suggest 18% of females and 6% of males have migraines each year.

To better understand heritability, the researchers compared identical twins with fraternal twins, and looked for gender-related correlations, Dr. Fitzgerald said.

One analysis suggests that migraine is equally heritable in men and women with a broad sense heritability of 0.45 (95% confidence interval [CI], 0.40-0.50). However, another analysis model provides evidence “that there are differences in the underlying genetic factors contributing to migraine across males and females,” she said.

Unexpectedly, the researchers also found that females with male twins were more likely to have migraines than were those with female twins (odds ratio, 1.51, 95% CI, 1.26-1.81) even though males are less affected by the headaches.

“These results suggest that the prominent sex difference in migraine prevalence is not entirely accounted for by genetic factors, while demonstrating that masculinization of the prenatal environment may increase migraine risk for females,” the authors wrote in the published study. “This effect points to a potential prenatal neuroendocrine factor in the development of migraine.”
 

Probing the migraine gender gap

Commenting on the research, University of Texas at Dallas neuroscientist and headache researcher Gregory Dussor, PhD, said the new study is “a very unique approach to address the question of nature versus nurture in migraine. It was well designed and used robust statistical modeling.”

As for the findings, “the conclusion that genetics do not explain sex differences in migraine risk by themselves is not surprising given how big of a role hormones in later life are likely to play in the disease and how many factors there are that can influence hormone levels,” he said.

“On the other hand, the surprising part of the findings was that the presence of a male co-twin increases risk of migraine in females. I would have expected to see the opposite, given the lower prevalence of migraine in males and the seemingly protective role that male hormones can play in migraine.”

Overall, the study adds to data implicating environment and hormones in the migraine gender gap, he said. “One thing I wonder from this study is what influence a female co-twin growing up with a male co-twin can have on migraine susceptibility. That female co-twin may end up with a very different set of childhood experiences than if she was with another female co-twin. Twins generally spend an enormous amount of time together and the same sex versus opposite sex experiences are likely to be quite different. This may have an influence on migraine later in life.”

As for the value of the study in terms of diagnosis, treatment, or prevention of migraine, Dr. Dussor said, “it’s possible it could help to identify risk factors for higher migraine susceptibility but it’s far too early to know how this could be used.”

The authors have no disclosures. Dr. Dussor disclosed an NIH-funded grant to study the role of the hormone prolactin in preclinical migraine models.

CHICAGO – Mortality rates from melanoma have fallen in recent years, likely due to the introduction of checkpoint inhibitors, according to a new analysis of the National Cancer Institute SEER database between 1975 and 2019.

“This is very encouraging data and represents the real-world effectiveness of these therapies. The cost of these therapies can be prohibitive for universal treatment access, so the ways to address the accessibility of these treatments and the health care costs need to be supported,” said lead author Navkirat Kaur Kahlon MD, a hematology/oncology fellow at the University of Toledo (Ohio). The study was presented at the annual meeting of the American Society of Clinical Oncology.

According to the American Cancer Society, the 5-year mortality for regional melanoma metastasis is 68%, and 30% for distant metastasis. However, these numbers may underestimate current survival. “People now being diagnosed with melanoma may have a better outlook than these numbers show. Treatments have improved over time, and these numbers are based on people who were diagnosed and treated at least 5 years earlier,” the American Cancer Society wrote.

Other studies have found similar trends. According to Cancer Research UK, 5-year melanoma skin cancer survival approximately doubled, from 46% to 90%, between 1971 and 2010. And, 1-year survival increased from 74% to 96%, but these improvements predated immune checkpoint inhibitors. An analysis of the Canadian Cancer Registry and Canadian Vital Statistics found an increasing incidence of melanoma, but a drop in mortality since 2013. A study of melanoma outcomes in Hungary also found increased incidence, while mortality declined by 16.55% between 2011 and 2019 (P =.013).

“These new drugs, which include immunotherapies and targeted therapies, are effective treatments in the clinical trial data, so the magnitude of drop seen in population mortality was not surprising but very exciting,” Dr. Kahlon said.

The findings are encouraging, but prevention remains the most important strategy. “The utility of sun-protective strategies and policies should be encouraged,” she added.

Cytotoxic chemotherapy has poor efficacy against metastatic melanoma, but novel therapies such as checkpoint inhibitors increased expected survival from months to years. “Given the magnitude of benefit compared to traditional chemotherapy in clinical trials, we decided to see if the real-world population is deriving the same benefit,” Dr. Kahlon said.

The researchers found that the annual percentage change (APC) melanoma mortality rate (MMR) was +1.65% between 1975 and 1988 (P < .01). The APC was 0.01% between 1988 and 2013, which was not statistically significant (P = .85). Between 2013 and 2017, APC was –6.24% (P < .01), and it was –1.56% between 2017 and 2019 (P = .53).

The increase in melanoma mortality between 1975 and 1988 may be due to changes in the way that SEER data was collected. “It is possible that this increase was at least in part due to better capturing of the data. There may also be a contribution of increased mortality due to increased incidence of diagnoses related to increased UV exposure. From the 1920s, increased sun exposure and bronzed skin became fashionable. In the 1940s-1960s, tanning oils and lotions became more popular, and there may have been an increase in UV exposure during that time, which later led to an increase in diagnosis and, without effective therapies, mortality. Further, the use of indoor tanning beds from the 1970s onward may have contributed to increased UV exposure, incidence, and mortality,” she said.

On the other hand, the researchers noted a slowing of mortality reduction between 2017 and 2019. This was not a surprise, Dr. Kahlon said, since by that time most novel therapies were being introduced in the adjuvant setting. “The mortality benefit, if any, from adjuvant treatments is seen over a longer period and may not yet be captured in SEER data. Even the clinical trial data for most of these treatments have not shown an overall survival advantage and require more time for the data to mature. It will be interesting to see how these trends change in the near future,” Dr. Kahlon said.

The study was limited by its retrospective nature. Dr. Kahlon has no relevant financial disclosures.

CHICAGO – Mortality rates from melanoma have fallen in recent years, likely due to the introduction of checkpoint inhibitors, according to a new analysis of the National Cancer Institute SEER database between 1975 and 2019.

“This is very encouraging data and represents the real-world effectiveness of these therapies. The cost of these therapies can be prohibitive for universal treatment access, so the ways to address the accessibility of these treatments and the health care costs need to be supported,” said lead author Navkirat Kaur Kahlon MD, a hematology/oncology fellow at the University of Toledo (Ohio). The study was presented at the annual meeting of the American Society of Clinical Oncology.

According to the American Cancer Society, the 5-year mortality for regional melanoma metastasis is 68%, and 30% for distant metastasis. However, these numbers may underestimate current survival. “People now being diagnosed with melanoma may have a better outlook than these numbers show. Treatments have improved over time, and these numbers are based on people who were diagnosed and treated at least 5 years earlier,” the American Cancer Society wrote.

Other studies have found similar trends. According to Cancer Research UK, 5-year melanoma skin cancer survival approximately doubled, from 46% to 90%, between 1971 and 2010. And, 1-year survival increased from 74% to 96%, but these improvements predated immune checkpoint inhibitors. An analysis of the Canadian Cancer Registry and Canadian Vital Statistics found an increasing incidence of melanoma, but a drop in mortality since 2013. A study of melanoma outcomes in Hungary also found increased incidence, while mortality declined by 16.55% between 2011 and 2019 (P =.013).

“These new drugs, which include immunotherapies and targeted therapies, are effective treatments in the clinical trial data, so the magnitude of drop seen in population mortality was not surprising but very exciting,” Dr. Kahlon said.

The findings are encouraging, but prevention remains the most important strategy. “The utility of sun-protective strategies and policies should be encouraged,” she added.

Cytotoxic chemotherapy has poor efficacy against metastatic melanoma, but novel therapies such as checkpoint inhibitors increased expected survival from months to years. “Given the magnitude of benefit compared to traditional chemotherapy in clinical trials, we decided to see if the real-world population is deriving the same benefit,” Dr. Kahlon said.

The researchers found that the annual percentage change (APC) melanoma mortality rate (MMR) was +1.65% between 1975 and 1988 (P < .01). The APC was 0.01% between 1988 and 2013, which was not statistically significant (P = .85). Between 2013 and 2017, APC was –6.24% (P < .01), and it was –1.56% between 2017 and 2019 (P = .53).

The increase in melanoma mortality between 1975 and 1988 may be due to changes in the way that SEER data was collected. “It is possible that this increase was at least in part due to better capturing of the data. There may also be a contribution of increased mortality due to increased incidence of diagnoses related to increased UV exposure. From the 1920s, increased sun exposure and bronzed skin became fashionable. In the 1940s-1960s, tanning oils and lotions became more popular, and there may have been an increase in UV exposure during that time, which later led to an increase in diagnosis and, without effective therapies, mortality. Further, the use of indoor tanning beds from the 1970s onward may have contributed to increased UV exposure, incidence, and mortality,” she said.

On the other hand, the researchers noted a slowing of mortality reduction between 2017 and 2019. This was not a surprise, Dr. Kahlon said, since by that time most novel therapies were being introduced in the adjuvant setting. “The mortality benefit, if any, from adjuvant treatments is seen over a longer period and may not yet be captured in SEER data. Even the clinical trial data for most of these treatments have not shown an overall survival advantage and require more time for the data to mature. It will be interesting to see how these trends change in the near future,” Dr. Kahlon said.

The study was limited by its retrospective nature. Dr. Kahlon has no relevant financial disclosures.

CHICAGO – Mortality rates from melanoma have fallen in recent years, likely due to the introduction of checkpoint inhibitors, according to a new analysis of the National Cancer Institute SEER database between 1975 and 2019.

“This is very encouraging data and represents the real-world effectiveness of these therapies. The cost of these therapies can be prohibitive for universal treatment access, so the ways to address the accessibility of these treatments and the health care costs need to be supported,” said lead author Navkirat Kaur Kahlon MD, a hematology/oncology fellow at the University of Toledo (Ohio). The study was presented at the annual meeting of the American Society of Clinical Oncology.

According to the American Cancer Society, the 5-year mortality for regional melanoma metastasis is 68%, and 30% for distant metastasis. However, these numbers may underestimate current survival. “People now being diagnosed with melanoma may have a better outlook than these numbers show. Treatments have improved over time, and these numbers are based on people who were diagnosed and treated at least 5 years earlier,” the American Cancer Society wrote.

Other studies have found similar trends. According to Cancer Research UK, 5-year melanoma skin cancer survival approximately doubled, from 46% to 90%, between 1971 and 2010. And, 1-year survival increased from 74% to 96%, but these improvements predated immune checkpoint inhibitors. An analysis of the Canadian Cancer Registry and Canadian Vital Statistics found an increasing incidence of melanoma, but a drop in mortality since 2013. A study of melanoma outcomes in Hungary also found increased incidence, while mortality declined by 16.55% between 2011 and 2019 (P =.013).

“These new drugs, which include immunotherapies and targeted therapies, are effective treatments in the clinical trial data, so the magnitude of drop seen in population mortality was not surprising but very exciting,” Dr. Kahlon said.

The findings are encouraging, but prevention remains the most important strategy. “The utility of sun-protective strategies and policies should be encouraged,” she added.

Cytotoxic chemotherapy has poor efficacy against metastatic melanoma, but novel therapies such as checkpoint inhibitors increased expected survival from months to years. “Given the magnitude of benefit compared to traditional chemotherapy in clinical trials, we decided to see if the real-world population is deriving the same benefit,” Dr. Kahlon said.

The researchers found that the annual percentage change (APC) melanoma mortality rate (MMR) was +1.65% between 1975 and 1988 (P < .01). The APC was 0.01% between 1988 and 2013, which was not statistically significant (P = .85). Between 2013 and 2017, APC was –6.24% (P < .01), and it was –1.56% between 2017 and 2019 (P = .53).

The increase in melanoma mortality between 1975 and 1988 may be due to changes in the way that SEER data was collected. “It is possible that this increase was at least in part due to better capturing of the data. There may also be a contribution of increased mortality due to increased incidence of diagnoses related to increased UV exposure. From the 1920s, increased sun exposure and bronzed skin became fashionable. In the 1940s-1960s, tanning oils and lotions became more popular, and there may have been an increase in UV exposure during that time, which later led to an increase in diagnosis and, without effective therapies, mortality. Further, the use of indoor tanning beds from the 1970s onward may have contributed to increased UV exposure, incidence, and mortality,” she said.

On the other hand, the researchers noted a slowing of mortality reduction between 2017 and 2019. This was not a surprise, Dr. Kahlon said, since by that time most novel therapies were being introduced in the adjuvant setting. “The mortality benefit, if any, from adjuvant treatments is seen over a longer period and may not yet be captured in SEER data. Even the clinical trial data for most of these treatments have not shown an overall survival advantage and require more time for the data to mature. It will be interesting to see how these trends change in the near future,” Dr. Kahlon said.

The study was limited by its retrospective nature. Dr. Kahlon has no relevant financial disclosures.

Highlights in early-stage non–small lung cancer (NSCLC) from the 2022 American Society of Clinical Oncology Annual Meeting are discussed by Dr Jack West of City of Hope Comprehensive Cancer Center in Duarte, California. 

He opens with a post hoc analysis of CheckMate 816, which showed that achieving a pathologic complete response with adjuvant nivolumab plus chemotherapy was highly associated with improved event-free survival. 

Next, Dr West reports on early results from the NADIM II trial, which confirmed the superiority of neoadjuvant nivolumab plus chemotherapy in resectable stage IIIa NSCLC, as well as the need for careful patient selection. 

He moves on to describe the neoSCORE study, which compared two vs three cycles of neoadjuvant sintilimab plus chemotherapy, with the latter achieving a markedly higher major pathologic response rate. 

Dr West next examines two interventional studies, starting with an analysis of the SEER database, which showed that addition of radiation therapy to neoadjuvant chemotherapy does not offer a benefit. He ends with a Veterans Affairs study underlining the importance of surgical quality as a predictor of patient outcomes. 

--

Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Care, Duarte, California; Medical Director, AccessHope, Los Angeles, California 

Howard (Jack) West, MD, has disclosed the following relevant financial relationships: 

Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Amgen; AstraZeneca; Eli Lily; EQRx; Genentech/Roche; Merck; Mirati; Pfizer; Regeneron; Takeda 

Serve(d) as a speaker or a member of a speakers bureau for: AstraZeneca; Merck 

Highlights in early-stage non–small lung cancer (NSCLC) from the 2022 American Society of Clinical Oncology Annual Meeting are discussed by Dr Jack West of City of Hope Comprehensive Cancer Center in Duarte, California. 

He opens with a post hoc analysis of CheckMate 816, which showed that achieving a pathologic complete response with adjuvant nivolumab plus chemotherapy was highly associated with improved event-free survival. 

Next, Dr West reports on early results from the NADIM II trial, which confirmed the superiority of neoadjuvant nivolumab plus chemotherapy in resectable stage IIIa NSCLC, as well as the need for careful patient selection. 

He moves on to describe the neoSCORE study, which compared two vs three cycles of neoadjuvant sintilimab plus chemotherapy, with the latter achieving a markedly higher major pathologic response rate. 

Dr West next examines two interventional studies, starting with an analysis of the SEER database, which showed that addition of radiation therapy to neoadjuvant chemotherapy does not offer a benefit. He ends with a Veterans Affairs study underlining the importance of surgical quality as a predictor of patient outcomes. 

--

Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Care, Duarte, California; Medical Director, AccessHope, Los Angeles, California 

Howard (Jack) West, MD, has disclosed the following relevant financial relationships: 

Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Amgen; AstraZeneca; Eli Lily; EQRx; Genentech/Roche; Merck; Mirati; Pfizer; Regeneron; Takeda 

Serve(d) as a speaker or a member of a speakers bureau for: AstraZeneca; Merck 

Highlights in early-stage non–small lung cancer (NSCLC) from the 2022 American Society of Clinical Oncology Annual Meeting are discussed by Dr Jack West of City of Hope Comprehensive Cancer Center in Duarte, California. 

He opens with a post hoc analysis of CheckMate 816, which showed that achieving a pathologic complete response with adjuvant nivolumab plus chemotherapy was highly associated with improved event-free survival. 

Next, Dr West reports on early results from the NADIM II trial, which confirmed the superiority of neoadjuvant nivolumab plus chemotherapy in resectable stage IIIa NSCLC, as well as the need for careful patient selection. 

He moves on to describe the neoSCORE study, which compared two vs three cycles of neoadjuvant sintilimab plus chemotherapy, with the latter achieving a markedly higher major pathologic response rate. 

Dr West next examines two interventional studies, starting with an analysis of the SEER database, which showed that addition of radiation therapy to neoadjuvant chemotherapy does not offer a benefit. He ends with a Veterans Affairs study underlining the importance of surgical quality as a predictor of patient outcomes. 

--

Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Care, Duarte, California; Medical Director, AccessHope, Los Angeles, California 

Howard (Jack) West, MD, has disclosed the following relevant financial relationships: 

Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Amgen; AstraZeneca; Eli Lily; EQRx; Genentech/Roche; Merck; Mirati; Pfizer; Regeneron; Takeda 

Serve(d) as a speaker or a member of a speakers bureau for: AstraZeneca; Merck 

There is scarce evidence to support the use of a FODMAP-lowering diet for children with irritable bowel syndrome (IBS), and there is no evidence to recommend its use for other gastrointestinal (GI) diseases and complaints in children, according to a position paper from the European Society for Pediatric Gastroenterology, Hepatology, and Nutrition (ESPGHAN).

A low-FODMAP (fermentable oligosaccharides, disaccharides, monosaccharides, and polyols) diet is increasingly being used to treat children with various GI complaints and disorders.

“Awareness of how and when to use the diet is crucial, as a restrictive diet may impact nutritional adequacy and/or promote distorted eating in vulnerable subjects,” the authors note.

Rut Anne Thomassen, department of pediatric medicine, Oslo University Hospital, and an international team of experts conducted a systematic literature review of the evidence on the safety and efficacy of the low-FODMAP diet in children.

The low-FODMAP diet has not been well studied in children, they report.

From 53 publications and registers that they screened, only seven studies (four randomized clinical trials and three interventions without control group or observational studies) were included in their assessment.

In the seven studies, only 111 children received the low-FODMAP diet, while 85 followed a control diet for comparison (a diet described as healthy, usual, or typical American diet for children).

All of the pediatric studies focused on functional abdominal pain disorders. None addressed nonceliac gluten sensitivity, small-intestinal bacterial overgrowth, or inflammatory bowel disease.

From their review, the authors conclude that, at present, there is “insufficient evidence” to routinely recommend the low-FODMAP diet for the treatment of functional GI disorders, nonceliac gluten sensitivity, inflammatory bowel diseases, or small-intestinal bacterial overgrowth in children.

When the low-FODMAP diet is considered for children, the authors recommend a thorough clinical history, physical examination, and assessment of nutritional status and GI symptoms by a multidisciplinary team.

“Ideally, a standardized questionnaire should be used before and following the start of the diet to assess objectively the effect of the low-FODMAP diet,” the authors advise.

A dietitian should assess the child’s diet to highlight any potential deficiencies, which could be exacerbated by the restrictions of the low-FODMAP diet.

To promote adherence to the diet, potential difficulties, such as how to provide a suitable lunch at school or what to do when the child is staying at a friend’s house, should be addressed.

The authors suggest providing parents with written information about sources of FODMAPs and suitable replacement foods. Offering meal plans can reduce the risk of diet mistakes as well as the risk of offering a diet insufficient in essential nutrients, they say.
 

‘Useful paper’

“This is a useful paper primarily to outline the paucity of data regarding dietary therapies in children and the importance of doing studies in this population,” Ashwin Ananthakrishnan, MD, MPH, a gastroenterologist with Massachusetts General Hospital and Harvard Medical School, both in Boston, who wasn’t involved in the research, told this news organization.

Samuel Nurko, MD, MPH, director of the Center for Motility and Functional Gastrointestinal Disorders at Boston Children’s Hospital, Massachusetts, noted that some studies have shown that a low-FODMAP diet can be effective in controlling symptoms for both adults and kids.

“The problem in kids is that the trials are very small, and there’s not a lot of them, so the evidence is limited,” said Dr. Nurko, who wasn’t involved in writing the position paper.

That’s not to say that it should not be tried in appropriate cases. “There’s no question that in some patients, taking away the FODMAPs gives them a big improvement in GI symptoms,” Dr. Nurko told this news organization.

“The problem with the low-FODMAP diet is, if you don’t do it right, then you get into trouble with nutritional deficiencies,” he cautioned.

“If you are going to try the low-FODMAP diet, it has to be short, no more than 4-6 weeks, and you need to do a top-down approach. Take FODMAPs out, and then start to reintroduce them. Either kids will respond to the diet, or they won’t. If they don’t, there is no reason to keep them on the diet. It’s a very hard diet to take,” Dr. Nurko said.

No source of funding for the study was disclosed. The authors, Dr. Ananthakrishnan, and Dr. Nurko have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

There is scarce evidence to support the use of a FODMAP-lowering diet for children with irritable bowel syndrome (IBS), and there is no evidence to recommend its use for other gastrointestinal (GI) diseases and complaints in children, according to a position paper from the European Society for Pediatric Gastroenterology, Hepatology, and Nutrition (ESPGHAN).

A low-FODMAP (fermentable oligosaccharides, disaccharides, monosaccharides, and polyols) diet is increasingly being used to treat children with various GI complaints and disorders.

“Awareness of how and when to use the diet is crucial, as a restrictive diet may impact nutritional adequacy and/or promote distorted eating in vulnerable subjects,” the authors note.

Rut Anne Thomassen, department of pediatric medicine, Oslo University Hospital, and an international team of experts conducted a systematic literature review of the evidence on the safety and efficacy of the low-FODMAP diet in children.

The low-FODMAP diet has not been well studied in children, they report.

From 53 publications and registers that they screened, only seven studies (four randomized clinical trials and three interventions without control group or observational studies) were included in their assessment.

In the seven studies, only 111 children received the low-FODMAP diet, while 85 followed a control diet for comparison (a diet described as healthy, usual, or typical American diet for children).

All of the pediatric studies focused on functional abdominal pain disorders. None addressed nonceliac gluten sensitivity, small-intestinal bacterial overgrowth, or inflammatory bowel disease.

From their review, the authors conclude that, at present, there is “insufficient evidence” to routinely recommend the low-FODMAP diet for the treatment of functional GI disorders, nonceliac gluten sensitivity, inflammatory bowel diseases, or small-intestinal bacterial overgrowth in children.

When the low-FODMAP diet is considered for children, the authors recommend a thorough clinical history, physical examination, and assessment of nutritional status and GI symptoms by a multidisciplinary team.

“Ideally, a standardized questionnaire should be used before and following the start of the diet to assess objectively the effect of the low-FODMAP diet,” the authors advise.

A dietitian should assess the child’s diet to highlight any potential deficiencies, which could be exacerbated by the restrictions of the low-FODMAP diet.

To promote adherence to the diet, potential difficulties, such as how to provide a suitable lunch at school or what to do when the child is staying at a friend’s house, should be addressed.

The authors suggest providing parents with written information about sources of FODMAPs and suitable replacement foods. Offering meal plans can reduce the risk of diet mistakes as well as the risk of offering a diet insufficient in essential nutrients, they say.
 

‘Useful paper’

“This is a useful paper primarily to outline the paucity of data regarding dietary therapies in children and the importance of doing studies in this population,” Ashwin Ananthakrishnan, MD, MPH, a gastroenterologist with Massachusetts General Hospital and Harvard Medical School, both in Boston, who wasn’t involved in the research, told this news organization.

Samuel Nurko, MD, MPH, director of the Center for Motility and Functional Gastrointestinal Disorders at Boston Children’s Hospital, Massachusetts, noted that some studies have shown that a low-FODMAP diet can be effective in controlling symptoms for both adults and kids.

“The problem in kids is that the trials are very small, and there’s not a lot of them, so the evidence is limited,” said Dr. Nurko, who wasn’t involved in writing the position paper.

That’s not to say that it should not be tried in appropriate cases. “There’s no question that in some patients, taking away the FODMAPs gives them a big improvement in GI symptoms,” Dr. Nurko told this news organization.

“The problem with the low-FODMAP diet is, if you don’t do it right, then you get into trouble with nutritional deficiencies,” he cautioned.

“If you are going to try the low-FODMAP diet, it has to be short, no more than 4-6 weeks, and you need to do a top-down approach. Take FODMAPs out, and then start to reintroduce them. Either kids will respond to the diet, or they won’t. If they don’t, there is no reason to keep them on the diet. It’s a very hard diet to take,” Dr. Nurko said.

No source of funding for the study was disclosed. The authors, Dr. Ananthakrishnan, and Dr. Nurko have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

There is scarce evidence to support the use of a FODMAP-lowering diet for children with irritable bowel syndrome (IBS), and there is no evidence to recommend its use for other gastrointestinal (GI) diseases and complaints in children, according to a position paper from the European Society for Pediatric Gastroenterology, Hepatology, and Nutrition (ESPGHAN).

A low-FODMAP (fermentable oligosaccharides, disaccharides, monosaccharides, and polyols) diet is increasingly being used to treat children with various GI complaints and disorders.

“Awareness of how and when to use the diet is crucial, as a restrictive diet may impact nutritional adequacy and/or promote distorted eating in vulnerable subjects,” the authors note.

Rut Anne Thomassen, department of pediatric medicine, Oslo University Hospital, and an international team of experts conducted a systematic literature review of the evidence on the safety and efficacy of the low-FODMAP diet in children.

The low-FODMAP diet has not been well studied in children, they report.

From 53 publications and registers that they screened, only seven studies (four randomized clinical trials and three interventions without control group or observational studies) were included in their assessment.

In the seven studies, only 111 children received the low-FODMAP diet, while 85 followed a control diet for comparison (a diet described as healthy, usual, or typical American diet for children).

All of the pediatric studies focused on functional abdominal pain disorders. None addressed nonceliac gluten sensitivity, small-intestinal bacterial overgrowth, or inflammatory bowel disease.

From their review, the authors conclude that, at present, there is “insufficient evidence” to routinely recommend the low-FODMAP diet for the treatment of functional GI disorders, nonceliac gluten sensitivity, inflammatory bowel diseases, or small-intestinal bacterial overgrowth in children.

When the low-FODMAP diet is considered for children, the authors recommend a thorough clinical history, physical examination, and assessment of nutritional status and GI symptoms by a multidisciplinary team.

“Ideally, a standardized questionnaire should be used before and following the start of the diet to assess objectively the effect of the low-FODMAP diet,” the authors advise.

A dietitian should assess the child’s diet to highlight any potential deficiencies, which could be exacerbated by the restrictions of the low-FODMAP diet.

To promote adherence to the diet, potential difficulties, such as how to provide a suitable lunch at school or what to do when the child is staying at a friend’s house, should be addressed.

The authors suggest providing parents with written information about sources of FODMAPs and suitable replacement foods. Offering meal plans can reduce the risk of diet mistakes as well as the risk of offering a diet insufficient in essential nutrients, they say.
 

‘Useful paper’

“This is a useful paper primarily to outline the paucity of data regarding dietary therapies in children and the importance of doing studies in this population,” Ashwin Ananthakrishnan, MD, MPH, a gastroenterologist with Massachusetts General Hospital and Harvard Medical School, both in Boston, who wasn’t involved in the research, told this news organization.

Samuel Nurko, MD, MPH, director of the Center for Motility and Functional Gastrointestinal Disorders at Boston Children’s Hospital, Massachusetts, noted that some studies have shown that a low-FODMAP diet can be effective in controlling symptoms for both adults and kids.

“The problem in kids is that the trials are very small, and there’s not a lot of them, so the evidence is limited,” said Dr. Nurko, who wasn’t involved in writing the position paper.

That’s not to say that it should not be tried in appropriate cases. “There’s no question that in some patients, taking away the FODMAPs gives them a big improvement in GI symptoms,” Dr. Nurko told this news organization.

“The problem with the low-FODMAP diet is, if you don’t do it right, then you get into trouble with nutritional deficiencies,” he cautioned.

“If you are going to try the low-FODMAP diet, it has to be short, no more than 4-6 weeks, and you need to do a top-down approach. Take FODMAPs out, and then start to reintroduce them. Either kids will respond to the diet, or they won’t. If they don’t, there is no reason to keep them on the diet. It’s a very hard diet to take,” Dr. Nurko said.

No source of funding for the study was disclosed. The authors, Dr. Ananthakrishnan, and Dr. Nurko have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

With suicide rates among young people rising in recent years, the American Academy of Pediatrics is now recommending adolescents 12 and up be screened for suicide risk as a part of regular preventive care.

The group recently added the recommendation on screening for suicide risk to its depression screening guidelines. Health care providers are urged to ask their young patients a set of questions to identify thoughts and plans for suicide, WDEF.com reported.

“Number one we need to screen for depression and the presence of depression, and those people will usually have a feeling of depressed mood, hopelessness, helplessness, and/or basically a lack of interest in pleasure or anticipation of happiness,” Timothy Fuller, DO, medical director of behavioral health and pediatrics for the American Academy of Pediatrics, told WDEF.

It’s a myth that talking about suicide makes it more likely a person will attempt suicide, he said.

“One of the biggest things you can do, as well, if you do have a child or teenager that has suicidality or that have depression with serious, significant suicide risk, is to just ask them how they’re doing every day,” Dr. Fuller said, according to WDEF.

The recommendation comes about 6 months after U.S. Surgeon General Vivek Murthy, MD, urged more attention be paid to youth mental health.

“Mental health challenges in children, adolescents, and young adults are real and widespread. Even before the pandemic, an alarming number of young people struggled with feelings of helplessness, depression, and thoughts of suicide – and rates have increased over the past decade,” Dr. Murthy said, according to a news release from the U.S. Department of Health & Human Services.

Between 2007 and 2018, suicide rates among people ages 10-24 in the United States went up by 57%, the department said. Estimates showed over 6,600 suicides among this age group in 2020, it said.

A version of this article first appeared on WebMD.com.

With suicide rates among young people rising in recent years, the American Academy of Pediatrics is now recommending adolescents 12 and up be screened for suicide risk as a part of regular preventive care.

The group recently added the recommendation on screening for suicide risk to its depression screening guidelines. Health care providers are urged to ask their young patients a set of questions to identify thoughts and plans for suicide, WDEF.com reported.

“Number one we need to screen for depression and the presence of depression, and those people will usually have a feeling of depressed mood, hopelessness, helplessness, and/or basically a lack of interest in pleasure or anticipation of happiness,” Timothy Fuller, DO, medical director of behavioral health and pediatrics for the American Academy of Pediatrics, told WDEF.

It’s a myth that talking about suicide makes it more likely a person will attempt suicide, he said.

“One of the biggest things you can do, as well, if you do have a child or teenager that has suicidality or that have depression with serious, significant suicide risk, is to just ask them how they’re doing every day,” Dr. Fuller said, according to WDEF.

The recommendation comes about 6 months after U.S. Surgeon General Vivek Murthy, MD, urged more attention be paid to youth mental health.

“Mental health challenges in children, adolescents, and young adults are real and widespread. Even before the pandemic, an alarming number of young people struggled with feelings of helplessness, depression, and thoughts of suicide – and rates have increased over the past decade,” Dr. Murthy said, according to a news release from the U.S. Department of Health & Human Services.

Between 2007 and 2018, suicide rates among people ages 10-24 in the United States went up by 57%, the department said. Estimates showed over 6,600 suicides among this age group in 2020, it said.

A version of this article first appeared on WebMD.com.

With suicide rates among young people rising in recent years, the American Academy of Pediatrics is now recommending adolescents 12 and up be screened for suicide risk as a part of regular preventive care.

The group recently added the recommendation on screening for suicide risk to its depression screening guidelines. Health care providers are urged to ask their young patients a set of questions to identify thoughts and plans for suicide, WDEF.com reported.

“Number one we need to screen for depression and the presence of depression, and those people will usually have a feeling of depressed mood, hopelessness, helplessness, and/or basically a lack of interest in pleasure or anticipation of happiness,” Timothy Fuller, DO, medical director of behavioral health and pediatrics for the American Academy of Pediatrics, told WDEF.

It’s a myth that talking about suicide makes it more likely a person will attempt suicide, he said.

“One of the biggest things you can do, as well, if you do have a child or teenager that has suicidality or that have depression with serious, significant suicide risk, is to just ask them how they’re doing every day,” Dr. Fuller said, according to WDEF.

The recommendation comes about 6 months after U.S. Surgeon General Vivek Murthy, MD, urged more attention be paid to youth mental health.

“Mental health challenges in children, adolescents, and young adults are real and widespread. Even before the pandemic, an alarming number of young people struggled with feelings of helplessness, depression, and thoughts of suicide – and rates have increased over the past decade,” Dr. Murthy said, according to a news release from the U.S. Department of Health & Human Services.

Between 2007 and 2018, suicide rates among people ages 10-24 in the United States went up by 57%, the department said. Estimates showed over 6,600 suicides among this age group in 2020, it said.

A version of this article first appeared on WebMD.com.

On the 50th anniversary of Title IX’s inception, the Biden administration has proposed changes to the law that would protect transgender students and assault survivors on college and university campuses.

With these changes, the protections provided by Title IX – a civil rights law that prohibits sex-based discrimination in schools that receive federal funding – would now be extended to students who identify as trans. The update would ensure that government-funded schools make proper accommodations for a trans student population, such as allowing students to use bathrooms and other facilities that align with their gender identity, and enforcing the use of students’ correct pronouns.

The revisions also seek to undo amendments made to the law by Betsy DeVos, who was secretary of education during the Trump presidency, which strengthened due process protections for students accused of sexual assault and narrowed the definition of sexual harassment. These rules “weakened protections for survivors of sexual assault and diminished the promise of an education free from discrimination,” the Biden administration said.

“Our proposed changes will allow us to continue that progress and ensure all our nation’s students – no matter where they live, who they are, or whom they love – can learn, grow, and thrive in school,” Education Secretary Miguel Cardona, PhD, said in a news release. “We welcome public comment on these critical regulations so we can further the Biden-Harris Administration’s mission of creating educational environments free from sex discrimination and sexual violence.”

The revisions will go through a long period of public comment before they are set into law. Still, the proposed changes mark a way forward for trans students who are not explicitly protected under Title IX, and they offer solace to assault survivors who may have felt discouraged to come forward and report under Ms. DeVos’s rules.

“The proposed regulations reflect the [Education] Department’s commitment to give full effect to Title IX, ensuring that no person experiences sex discrimination in education, and that school procedures for addressing complaints of sex discrimination, including sexual violence and other forms of sex-based harassment, are clear, effective, and fair to all involved,” said Catherine Lhamon, JD, assistant secretary for the Education Department’s Office Of Civil Rights.

More specific rules about transgender students’ participation in school sports are still to come.

A version of this article first appeared on WebMD.com.

On the 50th anniversary of Title IX’s inception, the Biden administration has proposed changes to the law that would protect transgender students and assault survivors on college and university campuses.

With these changes, the protections provided by Title IX – a civil rights law that prohibits sex-based discrimination in schools that receive federal funding – would now be extended to students who identify as trans. The update would ensure that government-funded schools make proper accommodations for a trans student population, such as allowing students to use bathrooms and other facilities that align with their gender identity, and enforcing the use of students’ correct pronouns.

The revisions also seek to undo amendments made to the law by Betsy DeVos, who was secretary of education during the Trump presidency, which strengthened due process protections for students accused of sexual assault and narrowed the definition of sexual harassment. These rules “weakened protections for survivors of sexual assault and diminished the promise of an education free from discrimination,” the Biden administration said.

“Our proposed changes will allow us to continue that progress and ensure all our nation’s students – no matter where they live, who they are, or whom they love – can learn, grow, and thrive in school,” Education Secretary Miguel Cardona, PhD, said in a news release. “We welcome public comment on these critical regulations so we can further the Biden-Harris Administration’s mission of creating educational environments free from sex discrimination and sexual violence.”

The revisions will go through a long period of public comment before they are set into law. Still, the proposed changes mark a way forward for trans students who are not explicitly protected under Title IX, and they offer solace to assault survivors who may have felt discouraged to come forward and report under Ms. DeVos’s rules.

“The proposed regulations reflect the [Education] Department’s commitment to give full effect to Title IX, ensuring that no person experiences sex discrimination in education, and that school procedures for addressing complaints of sex discrimination, including sexual violence and other forms of sex-based harassment, are clear, effective, and fair to all involved,” said Catherine Lhamon, JD, assistant secretary for the Education Department’s Office Of Civil Rights.

More specific rules about transgender students’ participation in school sports are still to come.

A version of this article first appeared on WebMD.com.

On the 50th anniversary of Title IX’s inception, the Biden administration has proposed changes to the law that would protect transgender students and assault survivors on college and university campuses.

With these changes, the protections provided by Title IX – a civil rights law that prohibits sex-based discrimination in schools that receive federal funding – would now be extended to students who identify as trans. The update would ensure that government-funded schools make proper accommodations for a trans student population, such as allowing students to use bathrooms and other facilities that align with their gender identity, and enforcing the use of students’ correct pronouns.

The revisions also seek to undo amendments made to the law by Betsy DeVos, who was secretary of education during the Trump presidency, which strengthened due process protections for students accused of sexual assault and narrowed the definition of sexual harassment. These rules “weakened protections for survivors of sexual assault and diminished the promise of an education free from discrimination,” the Biden administration said.

“Our proposed changes will allow us to continue that progress and ensure all our nation’s students – no matter where they live, who they are, or whom they love – can learn, grow, and thrive in school,” Education Secretary Miguel Cardona, PhD, said in a news release. “We welcome public comment on these critical regulations so we can further the Biden-Harris Administration’s mission of creating educational environments free from sex discrimination and sexual violence.”

The revisions will go through a long period of public comment before they are set into law. Still, the proposed changes mark a way forward for trans students who are not explicitly protected under Title IX, and they offer solace to assault survivors who may have felt discouraged to come forward and report under Ms. DeVos’s rules.

“The proposed regulations reflect the [Education] Department’s commitment to give full effect to Title IX, ensuring that no person experiences sex discrimination in education, and that school procedures for addressing complaints of sex discrimination, including sexual violence and other forms of sex-based harassment, are clear, effective, and fair to all involved,” said Catherine Lhamon, JD, assistant secretary for the Education Department’s Office Of Civil Rights.

More specific rules about transgender students’ participation in school sports are still to come.

A version of this article first appeared on WebMD.com.

A new analysis from the Centers for Disease Control and Prevention provides further details on mysterious cases of pediatric hepatitis identified across the United States. While 45% of patients have tested positive for adenovirus infection, it is likely that these children “represent a heterogenous group of hepatitis etiologies,” the CDC authors wrote.

Of the 296 children diagnosed between Oct. 1, 2021, and June 15, 2022, in the United States, 18 have required liver transplants and 11 have died.

On April 21, 2022, the CDC issued an alert to providers to report pediatric hepatitis cases of unknown etiology in children under 10 after similar cases had been identified in Europe and the United States. While the United Kingdom has found an uptick in cases over the past year, researchers from the CDC published data on June 14 that suggested pediatric hepatitis cases had not increased from 2017 to 2021.

This newest analysis, published Morbidity and Mortality Weekly Report, provides additional demographic data on affected patients and explores possible causes, including previous infection with COVID-19. Investigators had earlier ruled out COVID-19 vaccination as a potential factor in these cases, as most children were unvaccinated or not yet eligible to receive the vaccine. According to the analysis, only five patients had received at least one dose of a COVID-19 vaccine.

The 296 cases included in the analysis occurred in 42 U.S. states and territories, and the median age for patients was 2 years and 2 months. Nearly 60% of patients were male (58.1%) and 40.9% were female. The largest percentage of cases occurred in Hispanic or Latino children (37.8%), followed by non-Hispanic White (32.4%) children. Black patients made up 9.8% of all cases, and 3.7% of affected children were of Asian descent. Vomiting, fatigue, and jaundice were all common symptoms, and about 90% (89.9%) of children required hospitalization..

Of 224 children tested for adenovirus, 44.6% were positive. The analysis also included information on 123 of these hepatitis patients tested for other various pathogens. Nearly 80% (98/123) received a COVID-19 test and just 10.2% were positive. About 26% of patients had previously had COVID-19, and hepatitis onset occurred, on average, 133 days after the reported SARS-CoV-2 infection.

Other viruses detected included rhinovirus/enterovirus (24.5%), rotavirus (14.0%), and acute Epstein-Barr virus (11.4%)

Simultaneous infection with SARS-CoV-2 and adenovirus occurred in three patients.

There was no evidence of viral inclusions in the 36 patients who had pathological evaluation liver biopsies, explants, or autopsied tissue.

The findings suggest that there may be many different causes behind these severe hepatitis cases, and it is estimated that about one-third of hepatitis cases in children do not have a known cause. However, the identification of adenovirus infection in many cases “raises the question whether a new pattern of disease is emerging in this population or if adenovirus might be an underrecognized cause or cofactor in previously indeterminate cases of pediatric hepatitis,” the authors wrote. As the investigation continues, “further clinical data are needed to understand the cause of these cases and to assess the potential association with adenovirus.”

A version of this article first appeared on Medscape.com.

A new analysis from the Centers for Disease Control and Prevention provides further details on mysterious cases of pediatric hepatitis identified across the United States. While 45% of patients have tested positive for adenovirus infection, it is likely that these children “represent a heterogenous group of hepatitis etiologies,” the CDC authors wrote.

Of the 296 children diagnosed between Oct. 1, 2021, and June 15, 2022, in the United States, 18 have required liver transplants and 11 have died.

On April 21, 2022, the CDC issued an alert to providers to report pediatric hepatitis cases of unknown etiology in children under 10 after similar cases had been identified in Europe and the United States. While the United Kingdom has found an uptick in cases over the past year, researchers from the CDC published data on June 14 that suggested pediatric hepatitis cases had not increased from 2017 to 2021.

This newest analysis, published Morbidity and Mortality Weekly Report, provides additional demographic data on affected patients and explores possible causes, including previous infection with COVID-19. Investigators had earlier ruled out COVID-19 vaccination as a potential factor in these cases, as most children were unvaccinated or not yet eligible to receive the vaccine. According to the analysis, only five patients had received at least one dose of a COVID-19 vaccine.

The 296 cases included in the analysis occurred in 42 U.S. states and territories, and the median age for patients was 2 years and 2 months. Nearly 60% of patients were male (58.1%) and 40.9% were female. The largest percentage of cases occurred in Hispanic or Latino children (37.8%), followed by non-Hispanic White (32.4%) children. Black patients made up 9.8% of all cases, and 3.7% of affected children were of Asian descent. Vomiting, fatigue, and jaundice were all common symptoms, and about 90% (89.9%) of children required hospitalization..

Of 224 children tested for adenovirus, 44.6% were positive. The analysis also included information on 123 of these hepatitis patients tested for other various pathogens. Nearly 80% (98/123) received a COVID-19 test and just 10.2% were positive. About 26% of patients had previously had COVID-19, and hepatitis onset occurred, on average, 133 days after the reported SARS-CoV-2 infection.

Other viruses detected included rhinovirus/enterovirus (24.5%), rotavirus (14.0%), and acute Epstein-Barr virus (11.4%)

Simultaneous infection with SARS-CoV-2 and adenovirus occurred in three patients.

There was no evidence of viral inclusions in the 36 patients who had pathological evaluation liver biopsies, explants, or autopsied tissue.

The findings suggest that there may be many different causes behind these severe hepatitis cases, and it is estimated that about one-third of hepatitis cases in children do not have a known cause. However, the identification of adenovirus infection in many cases “raises the question whether a new pattern of disease is emerging in this population or if adenovirus might be an underrecognized cause or cofactor in previously indeterminate cases of pediatric hepatitis,” the authors wrote. As the investigation continues, “further clinical data are needed to understand the cause of these cases and to assess the potential association with adenovirus.”

A version of this article first appeared on Medscape.com.

A new analysis from the Centers for Disease Control and Prevention provides further details on mysterious cases of pediatric hepatitis identified across the United States. While 45% of patients have tested positive for adenovirus infection, it is likely that these children “represent a heterogenous group of hepatitis etiologies,” the CDC authors wrote.

Of the 296 children diagnosed between Oct. 1, 2021, and June 15, 2022, in the United States, 18 have required liver transplants and 11 have died.

On April 21, 2022, the CDC issued an alert to providers to report pediatric hepatitis cases of unknown etiology in children under 10 after similar cases had been identified in Europe and the United States. While the United Kingdom has found an uptick in cases over the past year, researchers from the CDC published data on June 14 that suggested pediatric hepatitis cases had not increased from 2017 to 2021.

This newest analysis, published Morbidity and Mortality Weekly Report, provides additional demographic data on affected patients and explores possible causes, including previous infection with COVID-19. Investigators had earlier ruled out COVID-19 vaccination as a potential factor in these cases, as most children were unvaccinated or not yet eligible to receive the vaccine. According to the analysis, only five patients had received at least one dose of a COVID-19 vaccine.

The 296 cases included in the analysis occurred in 42 U.S. states and territories, and the median age for patients was 2 years and 2 months. Nearly 60% of patients were male (58.1%) and 40.9% were female. The largest percentage of cases occurred in Hispanic or Latino children (37.8%), followed by non-Hispanic White (32.4%) children. Black patients made up 9.8% of all cases, and 3.7% of affected children were of Asian descent. Vomiting, fatigue, and jaundice were all common symptoms, and about 90% (89.9%) of children required hospitalization..

Of 224 children tested for adenovirus, 44.6% were positive. The analysis also included information on 123 of these hepatitis patients tested for other various pathogens. Nearly 80% (98/123) received a COVID-19 test and just 10.2% were positive. About 26% of patients had previously had COVID-19, and hepatitis onset occurred, on average, 133 days after the reported SARS-CoV-2 infection.

Other viruses detected included rhinovirus/enterovirus (24.5%), rotavirus (14.0%), and acute Epstein-Barr virus (11.4%)

Simultaneous infection with SARS-CoV-2 and adenovirus occurred in three patients.

There was no evidence of viral inclusions in the 36 patients who had pathological evaluation liver biopsies, explants, or autopsied tissue.

The findings suggest that there may be many different causes behind these severe hepatitis cases, and it is estimated that about one-third of hepatitis cases in children do not have a known cause. However, the identification of adenovirus infection in many cases “raises the question whether a new pattern of disease is emerging in this population or if adenovirus might be an underrecognized cause or cofactor in previously indeterminate cases of pediatric hepatitis,” the authors wrote. As the investigation continues, “further clinical data are needed to understand the cause of these cases and to assess the potential association with adenovirus.”

A version of this article first appeared on Medscape.com.

LONDON – The novel liver-targeting agent fazirsiran has fared well in a small, but significant, study looking at its ability to improve liver histology in adults with alpha-1 antitrypsin (AAT) deficiency.

Not only were serum and liver levels of the aberrant Z-AAT protein decreased, but also reductions in key liver enzymes were observed.

Courtesy Steve Forrest and Steve McConnel/EASL

AAT is “a greatly understudied disease,” said study investigator Pavel Strnad, MD, who presented the results of the phase 2 AROAAT-2002 study at a meeting sponsored by the European Association for the Study of the Liver. The results were published simultaneously in the New England Journal of Medicine.

“We have a great candidate drug, but we will only be able to bring this drug into the clinic when we understand the disease much better, and for this I would like to ask all of you for your support,” he said to delegates at the meeting.

There is currently no pharmacological treatment for AAT, observed Emmanuel Tsochatzis, MD, who chaired the late-breaker session during which the study findings were presented.

“It is a rare disease, but it really does affect the patients who have it. So it would be great to have a therapeutic solution for these patients,” said Dr. Tsochatzis in an interview.

Dr. Tsochatzis, who is professor of hepatology and Consultant Hepatologist at the UCL Institute for Liver and Digestive Health, Royal Free Hospital in London, noted that AAT was associated with liver impairment, fibrosis and cirrhosis, and ultimately end-stage liver disease in which the only option for some patients would be a liver transplant.

“It depends on the stage; many patients are not at the stage that they require a liver transplant,” he said. “For those with significant liver disease, not yet at the cirrhosis stage, you might be able to intervene early and prevent them from progressing to needing a liver transplant.”

Dr. Tsochatzis speculated: “If this becomes an approved treatment, it is a breakthrough for patients.”
 

New hope for AAT deficiency

There is still a long way to go before fazirsiran is anywhere near ready for clinical use, but the early data presented by Dr. Strnad offer a glimpse that a treatment could be on the horizon.

Naturally occurring AAT is produced in the liver and is thought to play a role in protecting against lung damage via its antiprotease activity. However, mutations in the SERPINA1 gene coding for the AAT protein leads to loss-of-function pulmonary disease and gain-of-function liver disease.

“The PI ZZ [proteinase inhibitor ZZ] genotype occurs in about one in 2,500 to 3,500 Caucasians, so actually is pretty common, and a third of them may actually have a clinically significant liver fibrosis,” said Dr. Strnad.

As levels of Z-AAT accumulate in the liver this “presumably causes the liver toxicity,” he observed. So, the thinking is that stopping the production of this mutant protein might help to reduce liver damage and allow the liver to regenerate and repair itself.
 

Study details

To test out this theory, a phase 2, open-label study was performed in 16 patients with confirmed AAT deficiency, all of whom had the PI ZZ genotype.

Eight patients were treated with fazirsiran, also known as ARO-AAT, for 24 weeks (cohorts 1 and 1b), while the other eight were treated for 48 weeks (cohort 2); cohort 1 (n = 4) and cohort 2 (n = 8) received 200 mg, while cohort 1b (n = 4), which was added during the trial to evaluate dose response, received 100 mg. In all cases, fazirsiran was given as a subcutaneous injection on day 1, day 4, and then every 12 weeks. All patients had biopsies at baseline, then at either 24 weeks (cohorts 1/1b) or 48 weeks (cohort 2).

“We saw a dramatic reduction in Z-AAT both in serum and in liver biopsies,” Dr. Strnad reported. Indeed, reductions in Z-AAT were around 80%-88%, he said, with a median reduction of 83% at week 24 or 48 according to the published paper.

To illustrate the clear results, Dr. Strand showed a sample biopsy slide where globules of Z-AAT present at the initial assessment were “virtually gone after 48 weeks of treatment.”

“The change in the serum and hepatic Z-AAT levels translated into improvement in liver function tests,” said Dr. Strnad.

Alanine aminotransferase levels were normalized in all patients and there was “marked improvement” in gamma glutamyl transferase (GGT) with the 200-mg dose of fazirsiran. Substantial changes in liver stiffness were recorded with the higher dose, –18% at 24 weeks and –15% at 48 weeks. There were also reductions in serum Pro-C3 of –36% and –17% at 52 weeks.

“Histological changes showed an improvement in liver inflammation and hepatocyte cell death in most of the patients,” Dr. Strnad said. He also noted that there were multiple cases where there was no change and a few where there was a deterioration.

Liver fibrosis was improved in seven of 12 patients given the highest dose of fazirsiran; however, there was no change in three patients and a worsening of 1 point or more in two patients. None of the three patients with evaluable biopsies who received 100 mg showed regression of fibrosis.

Stopping or rolling back fibrosis will be the final goal of proving clinical benefit in liver disease associated with AAT, Dr. Strnad and coinvestigators observe in their published paper, and while the changes seen so far with fazirsiran may not be uniform, they appear to be in the right direction.
 

Safety findings

”We didn’t see any drug discontinuation, dose interruption, or premature study withdrawals,” said Dr. Strnad.

“We had four different SAE [serious adverse events] which were kind of all over the place and did not seem to be related to treatment.” Those SAEs included viral myocarditis associated with Epstein-Barr virus infection, diverticulitis, dyspnea in a subject with a history of lung disease, and vestibular neuronitis after COVID-19 vaccination.

No significant safety signals were seen regarding lung function. Time will of course tell, he said in response to a question, but “our hope, our hypothesis, is that this will not change lung function dramatically.

“I would not expect any major things over a few years. Of course, whether this can lead to something over 20 years it is difficult to say.”

The current experience with fazirsiran looks good so far, but placebo-controlled, larger and longer studies are needed.

The study was funded by Arrowhead Pharmaceuticals. Dr. Strnad was an investigator in the study and acknowledged receipt of research funding via his institution from the company. Dr. Strnad also acknowledged paid and unpaid relationships with Alnylam Pharmaceuticals, Alpha1 Deutschland, Alpha1 Global, CSL Behring, Grifols Biologicals, Ono Pharmaceuticals, and Takeda California. Dr. Tsochatzis, chaired the late-breaker session at ILC 2022 during which the study findings were presented, was not connected to the study, and reported no relevant conflicts of interest.

LONDON – The novel liver-targeting agent fazirsiran has fared well in a small, but significant, study looking at its ability to improve liver histology in adults with alpha-1 antitrypsin (AAT) deficiency.

Not only were serum and liver levels of the aberrant Z-AAT protein decreased, but also reductions in key liver enzymes were observed.

Courtesy Steve Forrest and Steve McConnel/EASL

AAT is “a greatly understudied disease,” said study investigator Pavel Strnad, MD, who presented the results of the phase 2 AROAAT-2002 study at a meeting sponsored by the European Association for the Study of the Liver. The results were published simultaneously in the New England Journal of Medicine.

“We have a great candidate drug, but we will only be able to bring this drug into the clinic when we understand the disease much better, and for this I would like to ask all of you for your support,” he said to delegates at the meeting.

There is currently no pharmacological treatment for AAT, observed Emmanuel Tsochatzis, MD, who chaired the late-breaker session during which the study findings were presented.

“It is a rare disease, but it really does affect the patients who have it. So it would be great to have a therapeutic solution for these patients,” said Dr. Tsochatzis in an interview.

Dr. Tsochatzis, who is professor of hepatology and Consultant Hepatologist at the UCL Institute for Liver and Digestive Health, Royal Free Hospital in London, noted that AAT was associated with liver impairment, fibrosis and cirrhosis, and ultimately end-stage liver disease in which the only option for some patients would be a liver transplant.

“It depends on the stage; many patients are not at the stage that they require a liver transplant,” he said. “For those with significant liver disease, not yet at the cirrhosis stage, you might be able to intervene early and prevent them from progressing to needing a liver transplant.”

Dr. Tsochatzis speculated: “If this becomes an approved treatment, it is a breakthrough for patients.”
 

New hope for AAT deficiency

There is still a long way to go before fazirsiran is anywhere near ready for clinical use, but the early data presented by Dr. Strnad offer a glimpse that a treatment could be on the horizon.

Naturally occurring AAT is produced in the liver and is thought to play a role in protecting against lung damage via its antiprotease activity. However, mutations in the SERPINA1 gene coding for the AAT protein leads to loss-of-function pulmonary disease and gain-of-function liver disease.

“The PI ZZ [proteinase inhibitor ZZ] genotype occurs in about one in 2,500 to 3,500 Caucasians, so actually is pretty common, and a third of them may actually have a clinically significant liver fibrosis,” said Dr. Strnad.

As levels of Z-AAT accumulate in the liver this “presumably causes the liver toxicity,” he observed. So, the thinking is that stopping the production of this mutant protein might help to reduce liver damage and allow the liver to regenerate and repair itself.
 

Study details

To test out this theory, a phase 2, open-label study was performed in 16 patients with confirmed AAT deficiency, all of whom had the PI ZZ genotype.

Eight patients were treated with fazirsiran, also known as ARO-AAT, for 24 weeks (cohorts 1 and 1b), while the other eight were treated for 48 weeks (cohort 2); cohort 1 (n = 4) and cohort 2 (n = 8) received 200 mg, while cohort 1b (n = 4), which was added during the trial to evaluate dose response, received 100 mg. In all cases, fazirsiran was given as a subcutaneous injection on day 1, day 4, and then every 12 weeks. All patients had biopsies at baseline, then at either 24 weeks (cohorts 1/1b) or 48 weeks (cohort 2).

“We saw a dramatic reduction in Z-AAT both in serum and in liver biopsies,” Dr. Strnad reported. Indeed, reductions in Z-AAT were around 80%-88%, he said, with a median reduction of 83% at week 24 or 48 according to the published paper.

To illustrate the clear results, Dr. Strand showed a sample biopsy slide where globules of Z-AAT present at the initial assessment were “virtually gone after 48 weeks of treatment.”

“The change in the serum and hepatic Z-AAT levels translated into improvement in liver function tests,” said Dr. Strnad.

Alanine aminotransferase levels were normalized in all patients and there was “marked improvement” in gamma glutamyl transferase (GGT) with the 200-mg dose of fazirsiran. Substantial changes in liver stiffness were recorded with the higher dose, –18% at 24 weeks and –15% at 48 weeks. There were also reductions in serum Pro-C3 of –36% and –17% at 52 weeks.

“Histological changes showed an improvement in liver inflammation and hepatocyte cell death in most of the patients,” Dr. Strnad said. He also noted that there were multiple cases where there was no change and a few where there was a deterioration.

Liver fibrosis was improved in seven of 12 patients given the highest dose of fazirsiran; however, there was no change in three patients and a worsening of 1 point or more in two patients. None of the three patients with evaluable biopsies who received 100 mg showed regression of fibrosis.

Stopping or rolling back fibrosis will be the final goal of proving clinical benefit in liver disease associated with AAT, Dr. Strnad and coinvestigators observe in their published paper, and while the changes seen so far with fazirsiran may not be uniform, they appear to be in the right direction.
 

Safety findings

”We didn’t see any drug discontinuation, dose interruption, or premature study withdrawals,” said Dr. Strnad.

“We had four different SAE [serious adverse events] which were kind of all over the place and did not seem to be related to treatment.” Those SAEs included viral myocarditis associated with Epstein-Barr virus infection, diverticulitis, dyspnea in a subject with a history of lung disease, and vestibular neuronitis after COVID-19 vaccination.

No significant safety signals were seen regarding lung function. Time will of course tell, he said in response to a question, but “our hope, our hypothesis, is that this will not change lung function dramatically.

“I would not expect any major things over a few years. Of course, whether this can lead to something over 20 years it is difficult to say.”

The current experience with fazirsiran looks good so far, but placebo-controlled, larger and longer studies are needed.

The study was funded by Arrowhead Pharmaceuticals. Dr. Strnad was an investigator in the study and acknowledged receipt of research funding via his institution from the company. Dr. Strnad also acknowledged paid and unpaid relationships with Alnylam Pharmaceuticals, Alpha1 Deutschland, Alpha1 Global, CSL Behring, Grifols Biologicals, Ono Pharmaceuticals, and Takeda California. Dr. Tsochatzis, chaired the late-breaker session at ILC 2022 during which the study findings were presented, was not connected to the study, and reported no relevant conflicts of interest.

LONDON – The novel liver-targeting agent fazirsiran has fared well in a small, but significant, study looking at its ability to improve liver histology in adults with alpha-1 antitrypsin (AAT) deficiency.

Not only were serum and liver levels of the aberrant Z-AAT protein decreased, but also reductions in key liver enzymes were observed.

Courtesy Steve Forrest and Steve McConnel/EASL

AAT is “a greatly understudied disease,” said study investigator Pavel Strnad, MD, who presented the results of the phase 2 AROAAT-2002 study at a meeting sponsored by the European Association for the Study of the Liver. The results were published simultaneously in the New England Journal of Medicine.

“We have a great candidate drug, but we will only be able to bring this drug into the clinic when we understand the disease much better, and for this I would like to ask all of you for your support,” he said to delegates at the meeting.

There is currently no pharmacological treatment for AAT, observed Emmanuel Tsochatzis, MD, who chaired the late-breaker session during which the study findings were presented.

“It is a rare disease, but it really does affect the patients who have it. So it would be great to have a therapeutic solution for these patients,” said Dr. Tsochatzis in an interview.

Dr. Tsochatzis, who is professor of hepatology and Consultant Hepatologist at the UCL Institute for Liver and Digestive Health, Royal Free Hospital in London, noted that AAT was associated with liver impairment, fibrosis and cirrhosis, and ultimately end-stage liver disease in which the only option for some patients would be a liver transplant.

“It depends on the stage; many patients are not at the stage that they require a liver transplant,” he said. “For those with significant liver disease, not yet at the cirrhosis stage, you might be able to intervene early and prevent them from progressing to needing a liver transplant.”

Dr. Tsochatzis speculated: “If this becomes an approved treatment, it is a breakthrough for patients.”
 

New hope for AAT deficiency

There is still a long way to go before fazirsiran is anywhere near ready for clinical use, but the early data presented by Dr. Strnad offer a glimpse that a treatment could be on the horizon.

Naturally occurring AAT is produced in the liver and is thought to play a role in protecting against lung damage via its antiprotease activity. However, mutations in the SERPINA1 gene coding for the AAT protein leads to loss-of-function pulmonary disease and gain-of-function liver disease.

“The PI ZZ [proteinase inhibitor ZZ] genotype occurs in about one in 2,500 to 3,500 Caucasians, so actually is pretty common, and a third of them may actually have a clinically significant liver fibrosis,” said Dr. Strnad.

As levels of Z-AAT accumulate in the liver this “presumably causes the liver toxicity,” he observed. So, the thinking is that stopping the production of this mutant protein might help to reduce liver damage and allow the liver to regenerate and repair itself.
 

Study details

To test out this theory, a phase 2, open-label study was performed in 16 patients with confirmed AAT deficiency, all of whom had the PI ZZ genotype.

Eight patients were treated with fazirsiran, also known as ARO-AAT, for 24 weeks (cohorts 1 and 1b), while the other eight were treated for 48 weeks (cohort 2); cohort 1 (n = 4) and cohort 2 (n = 8) received 200 mg, while cohort 1b (n = 4), which was added during the trial to evaluate dose response, received 100 mg. In all cases, fazirsiran was given as a subcutaneous injection on day 1, day 4, and then every 12 weeks. All patients had biopsies at baseline, then at either 24 weeks (cohorts 1/1b) or 48 weeks (cohort 2).

“We saw a dramatic reduction in Z-AAT both in serum and in liver biopsies,” Dr. Strnad reported. Indeed, reductions in Z-AAT were around 80%-88%, he said, with a median reduction of 83% at week 24 or 48 according to the published paper.

To illustrate the clear results, Dr. Strand showed a sample biopsy slide where globules of Z-AAT present at the initial assessment were “virtually gone after 48 weeks of treatment.”

“The change in the serum and hepatic Z-AAT levels translated into improvement in liver function tests,” said Dr. Strnad.

Alanine aminotransferase levels were normalized in all patients and there was “marked improvement” in gamma glutamyl transferase (GGT) with the 200-mg dose of fazirsiran. Substantial changes in liver stiffness were recorded with the higher dose, –18% at 24 weeks and –15% at 48 weeks. There were also reductions in serum Pro-C3 of –36% and –17% at 52 weeks.

“Histological changes showed an improvement in liver inflammation and hepatocyte cell death in most of the patients,” Dr. Strnad said. He also noted that there were multiple cases where there was no change and a few where there was a deterioration.

Liver fibrosis was improved in seven of 12 patients given the highest dose of fazirsiran; however, there was no change in three patients and a worsening of 1 point or more in two patients. None of the three patients with evaluable biopsies who received 100 mg showed regression of fibrosis.

Stopping or rolling back fibrosis will be the final goal of proving clinical benefit in liver disease associated with AAT, Dr. Strnad and coinvestigators observe in their published paper, and while the changes seen so far with fazirsiran may not be uniform, they appear to be in the right direction.
 

Safety findings

”We didn’t see any drug discontinuation, dose interruption, or premature study withdrawals,” said Dr. Strnad.

“We had four different SAE [serious adverse events] which were kind of all over the place and did not seem to be related to treatment.” Those SAEs included viral myocarditis associated with Epstein-Barr virus infection, diverticulitis, dyspnea in a subject with a history of lung disease, and vestibular neuronitis after COVID-19 vaccination.

No significant safety signals were seen regarding lung function. Time will of course tell, he said in response to a question, but “our hope, our hypothesis, is that this will not change lung function dramatically.

“I would not expect any major things over a few years. Of course, whether this can lead to something over 20 years it is difficult to say.”

The current experience with fazirsiran looks good so far, but placebo-controlled, larger and longer studies are needed.

The study was funded by Arrowhead Pharmaceuticals. Dr. Strnad was an investigator in the study and acknowledged receipt of research funding via his institution from the company. Dr. Strnad also acknowledged paid and unpaid relationships with Alnylam Pharmaceuticals, Alpha1 Deutschland, Alpha1 Global, CSL Behring, Grifols Biologicals, Ono Pharmaceuticals, and Takeda California. Dr. Tsochatzis, chaired the late-breaker session at ILC 2022 during which the study findings were presented, was not connected to the study, and reported no relevant conflicts of interest.