Liver Disease

The incidence of autoimmune hepatitis (AIH) may be rising, according to a prospective population-based study conducted in New Zealand.

From 2008 to 2016, the rising incidence of AIH led to a 40% increase in point prevalence, reported lead author Mehul Lamba, MD, of Christchurch (New Zealand) Hospital and colleagues.

The incidence of autoimmune hepatitis (AIH) may be rising, according to a prospective population-based study conducted in New Zealand.

From 2008 to 2016, the rising incidence of AIH led to a 40% increase in point prevalence, reported lead author Mehul Lamba, MD, of Christchurch (New Zealand) Hospital and colleagues.

The incidence of autoimmune hepatitis (AIH) may be rising, according to a prospective population-based study conducted in New Zealand.

From 2008 to 2016, the rising incidence of AIH led to a 40% increase in point prevalence, reported lead author Mehul Lamba, MD, of Christchurch (New Zealand) Hospital and colleagues.

Mounting evidence of strikingly high prevalence rates of fatty liver disease, advanced fibrosis, and cirrhosis among patients with type 2 diabetes has led to calls for heightened awareness and screening to identify these patients and target treatments to reduce their risk for irreversible liver damage.

Courtesy Dr. Christos S. Mantzoros

Among these calls is a pending statement from the Endocrine Society, the American Association of Clinical Endocrinologists, the American Gastroenterology Association, and other groups on what the growing appreciation of highly prevalent liver disease in patients with type 2 diabetes (T2D) means for assessing and managing patients. Publication of the statement is expected by spring 2021, said Christos S. Mantzoros, MD, DSc, PhD, chief of endocrinology for the Veterans Affairs Boston Healthcare System and a representative from the Endocrine Society to the statement-writing panel.

This upcoming “Call to Action” from these groups argues for a “need to collaborate across disciplines, and work together on establishing clinical guidelines, and creating new diagnostics and therapeutics,” said Dr. Mantzoros in an interview.

“Over time, it is becoming clearer that management of NAFLD [nonalcoholic fatty liver disease]/NASH [nonalcoholic steatohepatitis] requires a multidisciplinary panel of doctors ranging from primary care practitioners, to endocrinologists, and hepatologists. Given that the nature of the disease crosses scientific discipline boundaries, and that the number of patients is so large (it is estimated that about one in four U.S. adults have NAFLD), not all patients can be treated at the limited number of hepatology centers.

“However, not all stakeholders have fully realized this fact, and no effort had been undertaken so far by any professional society to develop a coordinated approach and clinical care pathway for NAFLD/NASH. The ‘Call to Action’ meeting can be considered as a starting point for such an important effort,” said Dr. Mantzoros, who is also a professor of medicine at Harvard Medical School and director of the human nutrition unit at Beth Israel Deaconess Medical Center, both in Boston.
 

Dramatic prevalence rates in patients with T2D

Results from two independent epidemiology reports, published in December 2020, documented steatosis (the fatty liver of NAFLD) in 70%-74% of unselected U.S. patients with T2D, advanced liver fibrosis accompanying this disease in 6%-15%, and previously unrecognized cirrhosis in 3%-8%.

One of these reports analyzed 825 patients with T2D included in the National Health and Nutritional Examination Survey of 2017-2018 run by the Centers for Disease Control and Prevention. All these patients, selected to be representative of the overall U.S. adult population with T2D, underwent transient elastography to identify steatosis and fibrosis, the first U.S. National Health Survey to run this type of population-based survey. The results showed an overall steatosis prevalence of 74% with grade 3 steatosis in 58%, advanced liver fibrosis in 15%, and cirrhosis in 8%, reported the team of Italian researchers who analyzed the data .

The second study focused on a single-center series of 561 patients with T2D who also underwent screening by transient elastography during 2018-2020 and had no history of NAFLD or other liver disease, or alcohol abuse. The imaging results showed a NAFLD prevalence of 70%, with 54% of the entire group diagnosed with severe steatosis, severe fibrosis in 6%, and cirrhosis in 3%. Among the 54% of patients with severe steatosis, 30% also had severe liver fibrosis. About 70% of the 561 patients assessed came from either the family medicine or general internal medicine clinics of the University of Florida, Gainesville, with the remaining 30% enrolled from the center’s endocrinology/diabetes outpatient clinic.

Neither report documented a NASH prevalence, which cannot receive definitive diagnosis by imaging alone. “This is the first study of its kind in the U.S. to establish the magnitude of [liver] disease burden in random patients with T2D seeking regular outpatient care,” wrote the University of Florida research team, led by Kenneth Cusi, MD, professor and chief of the university’s division of endocrinology, diabetes, and metabolism. Their finding that patients with T2D and previously unknown to have NAFLD had a 15% prevalence of moderate or advanced liver fibrosis “should trigger a call to action by all clinicians taking care of patients with T2D. Patient and physician awareness of the hepatic and extrahepatic complications of NASH, and reversing current diagnosis and treatment inertia will be the only way to avert the looming epidemic of cirrhosis in patients with diabetes.”

“Endocrinologists don’t ‘see’ NAFLD and NASH” in their patients with T2D “ because they don’t think about it,” Dr. Mantzoros declared.

Doug Brunk/Frontline Medical News

“Why is NASH underdiagnosed and undertreated? Because many physicians aren’t aware of it,” agreed Dr. Cusi during a talk in December 2020 at the 18th World Congress on Insulin Resistance, Diabetes, and Cardiovascular Disease (WCIRDC). “You never find what you don’t look for.”

“Endocrinologists should do the tests for NASH [in patients with T2D], but we’re all guilty of not doing it enough,” Tracey McLaughlin, MD, an endocrinologist and professor of medicine at Stanford (Calif.) University, commented during the WCIRDC.

These prevalence numbers demand that clinicians suspect liver disease “in any patient with diabetes, especially patients with obesity who are older and have components of metabolic syndrome,” said Dr. Mantzoros. “We need to screen, refer the most advanced cases, and treat the early- and mid-stage cases.”
 

How to find NASH

Both the American Diabetes Association and the European Association for the Study of Diabetes call for routine screening of patients with T2D, starting with a check of liver enzymes, such as ALT, but no clear consensus exists for the specifics of screening beyond that. Dr. Mantzoros, Dr. Cusi, and other experts agree that the scheme for assessing liver disease in patients with T2D starts with regular monitoring of elevations in liver enzymes including ALT. Next is noninvasive ultrasound assessment of the extent of liver fibrosis inferred from the organ’s stiffness using transient elastography. Another frequently cited initial screening tool is the Fibrosis-4 (FIB-4) score, which incorporates a patient’s age, platelet count, and levels of ALT and a second liver enzyme, AST.

“There is more consensus about FIB-4 and then elastography, but some people use tests other than FIB-4. Unfortunately there is no perfect diagnostic test today. A top priority is to define the best diagnostic test,” said Dr. Mantzoros, who is leading an effort to try to refine screening using artificial intelligence.

“FIB-4 is simple, easy, and well validated,” commented Dr. Cusi during the WCIRDC last December. “FIB-4 and elastography should get you pretty close” to identifying patients with T2D and significant liver disease.

But in a recent editorial, Dr. Cusi agreed on the need for “more reliable tests for the diagnosis of NASH and advanced fibrosis in patients with T2D. Significant work is being done in the field to validate novel and more sophisticated fibrosis biomarkers. Future studies will help us enter a new era of precision medicine where biomarkers will identify and target therapy to those with more active disease at risk for cirrhosis,” he wrote.

“The ultimate goal is to diagnose fibrosis at an early stage to prevent people from developing cirrhosis,” Dr. Cusi said in a recent written statement. “We’re trying to identify these problems before they’re unfixable. Once someone has cirrhosis, there isn’t a whole lot you can do.”
 

Pioglitazone remains the best-documented treatment

Perhaps some of the inertia in diagnosing NAFLD, NASH, and liver fibrosis in patients with T2D is dissatisfaction with current treatment options, although several proven options exist, notably weight loss and diet, and thiazolidinedione (TZD) pioglitazone. But weight loss and diet pose issues for patient compliance and durability of the intervention, and many clinicians consider pioglitazone flawed by its potential adverse effects.

“When we don’t have an established treatment for something, we tend to not measure it or go after it. That’s been true of liver disease” in patients with T2D, said Yehuda Handelsman, MD, an endocrinologist and diabetes specialist who is medical director of the Metabolic Institute of America in Tarzana, Calif., during the WCIRDC.

Treatment with pioglitazone has resolved NASH in about a third of patients compared with placebo, prevented fibrosis progression, and cut cardiovascular disease events, noted Dr. Cusi during the WCIRDC.

“Pioglitazone is used in only 8% of patients with T2D, or less, but we need to use it more often because of its proven efficacy in patients with T2D and NASH” said Dr. Mantzoros. “The problem is that pioglitazone has side effects, including weight gain and fluid retention, that makes it less attractive unless one thinks about the diagnosis of NASH.”

Others highlight that the adverse effects of pioglitazone have been either misunderstood, or can be effectively minimized with careful dosing.

“The data with the TZDs are much stronger than the data from anything else. TZDs have gotten a bad name because they also work in the kidney and enhance fluid reabsorption. We use modest dosages of pioglitazone, 15 mg or 30 mg a day, to avoid excess fluid retention,” Ralph A. DeFronzo, MD, chief of the diabetes division and professor of medicine at the University of Texas Health Science Center, San Antonio, said during the WCIRDC. “The best drug for NASH is pioglitazone. No other drug beats it” based on current data, Dr. DeFronzo asserted.

Other strategies include the potential to pair pioglitazone with other interventions that can blunt a weight-gain effect. One intriguing combination would combine pioglitazone with a GLP-1 receptor agonist, a drug class that can produce significant weight loss. Results from a phase 2 study showed promise for semaglutide (Rybelsus) in treating patients with NASH.
 

Getting the name right

Another factor that may be keeping NAFLD and NASH from achieving a higher profile for patients with T2D are those names, which focus on what the diseases are not – nonalcoholic – rather than what they are.

A series of recent publications in both the endocrinology and hepatology literature have called for renaming these disorders either “metabolic (dysfunction)–associated fatty liver disease (MALFD)”, or “dysmetabolism-associated fatty liver disease (DALFD)”.

“The names NAFLD and NASH indicate absence of alcohol as a cause, but the disease is also characterized by the absence of other causes, such as autoimmune disorders or hepatitis. The names were coined when we did not know much about these diseases. We now know that it is dysmetabolism that causes these conditions, and so we need to adopt a new, more accurate name,” explained Dr. Mantzoros, who has published support for a name change.

While many agree, some have raised concerns as to whether a name change now is premature. A group of hepatologists recently published a rebuttal to an immediate name change , saying that, “although we are in agreement that metabolic fatty liver disease may more accurately and positively reflect the relevant risk factors better than the age-old term nonalcoholic fatty liver disease, the term still leaves a great deal of ambiguity. A name change will be appropriate when informed by a new understanding of the molecular basis of the disease entity, insights that fundamentally change risk stratification, or other important aspects of the disease. We may be on the cusp of this, but we are not there yet.”

Dr. Mantzoros agreed, but for somewhat different reasons.

“We need to be careful and deliberate, because there is a significant body of knowledge and a lot of data from clinical trials collected using the old definitions. We need to find an appropriate time frame for a [name] transition. We need to find a nice and robust way to productively bridge the old to the new,” he said. “We also need new diagnostic criteria, and new therapies. A new name and definition will facilitate progress.”

Dr. Mantzoros been a shareholder of and consultant to Coherus and Pangea, he has been a consultant to AstraZeneca, Eisai, Genfit, Intercept, Novo Nordisk, P.E.S., and Regeneron, and has received travel support from the Metabolic Institute of America and the California Walnut Commission. Dr. Cusi has been a consultant to and has received research funding from numerous drug companies. Dr. McLaughlin is a consultant to January AI. Dr. Handelsman has been a consultant to numerous drug companies. Dr. DeFronzo received research grants from AstraZeneca, Janssen, and Merck; he has been an adviser to AstraZeneca, Boehringer Ingelheim, Intarcia, Janssen, and Novo Nordisk; and he has been a speaker on behalf of AstraZeneca and Novo Nordisk.

[email protected]

Mounting evidence of strikingly high prevalence rates of fatty liver disease, advanced fibrosis, and cirrhosis among patients with type 2 diabetes has led to calls for heightened awareness and screening to identify these patients and target treatments to reduce their risk for irreversible liver damage.

Courtesy Dr. Christos S. Mantzoros

Among these calls is a pending statement from the Endocrine Society, the American Association of Clinical Endocrinologists, the American Gastroenterology Association, and other groups on what the growing appreciation of highly prevalent liver disease in patients with type 2 diabetes (T2D) means for assessing and managing patients. Publication of the statement is expected by spring 2021, said Christos S. Mantzoros, MD, DSc, PhD, chief of endocrinology for the Veterans Affairs Boston Healthcare System and a representative from the Endocrine Society to the statement-writing panel.

This upcoming “Call to Action” from these groups argues for a “need to collaborate across disciplines, and work together on establishing clinical guidelines, and creating new diagnostics and therapeutics,” said Dr. Mantzoros in an interview.

“Over time, it is becoming clearer that management of NAFLD [nonalcoholic fatty liver disease]/NASH [nonalcoholic steatohepatitis] requires a multidisciplinary panel of doctors ranging from primary care practitioners, to endocrinologists, and hepatologists. Given that the nature of the disease crosses scientific discipline boundaries, and that the number of patients is so large (it is estimated that about one in four U.S. adults have NAFLD), not all patients can be treated at the limited number of hepatology centers.

“However, not all stakeholders have fully realized this fact, and no effort had been undertaken so far by any professional society to develop a coordinated approach and clinical care pathway for NAFLD/NASH. The ‘Call to Action’ meeting can be considered as a starting point for such an important effort,” said Dr. Mantzoros, who is also a professor of medicine at Harvard Medical School and director of the human nutrition unit at Beth Israel Deaconess Medical Center, both in Boston.
 

Dramatic prevalence rates in patients with T2D

Results from two independent epidemiology reports, published in December 2020, documented steatosis (the fatty liver of NAFLD) in 70%-74% of unselected U.S. patients with T2D, advanced liver fibrosis accompanying this disease in 6%-15%, and previously unrecognized cirrhosis in 3%-8%.

One of these reports analyzed 825 patients with T2D included in the National Health and Nutritional Examination Survey of 2017-2018 run by the Centers for Disease Control and Prevention. All these patients, selected to be representative of the overall U.S. adult population with T2D, underwent transient elastography to identify steatosis and fibrosis, the first U.S. National Health Survey to run this type of population-based survey. The results showed an overall steatosis prevalence of 74% with grade 3 steatosis in 58%, advanced liver fibrosis in 15%, and cirrhosis in 8%, reported the team of Italian researchers who analyzed the data .

The second study focused on a single-center series of 561 patients with T2D who also underwent screening by transient elastography during 2018-2020 and had no history of NAFLD or other liver disease, or alcohol abuse. The imaging results showed a NAFLD prevalence of 70%, with 54% of the entire group diagnosed with severe steatosis, severe fibrosis in 6%, and cirrhosis in 3%. Among the 54% of patients with severe steatosis, 30% also had severe liver fibrosis. About 70% of the 561 patients assessed came from either the family medicine or general internal medicine clinics of the University of Florida, Gainesville, with the remaining 30% enrolled from the center’s endocrinology/diabetes outpatient clinic.

Neither report documented a NASH prevalence, which cannot receive definitive diagnosis by imaging alone. “This is the first study of its kind in the U.S. to establish the magnitude of [liver] disease burden in random patients with T2D seeking regular outpatient care,” wrote the University of Florida research team, led by Kenneth Cusi, MD, professor and chief of the university’s division of endocrinology, diabetes, and metabolism. Their finding that patients with T2D and previously unknown to have NAFLD had a 15% prevalence of moderate or advanced liver fibrosis “should trigger a call to action by all clinicians taking care of patients with T2D. Patient and physician awareness of the hepatic and extrahepatic complications of NASH, and reversing current diagnosis and treatment inertia will be the only way to avert the looming epidemic of cirrhosis in patients with diabetes.”

“Endocrinologists don’t ‘see’ NAFLD and NASH” in their patients with T2D “ because they don’t think about it,” Dr. Mantzoros declared.

Doug Brunk/Frontline Medical News

“Why is NASH underdiagnosed and undertreated? Because many physicians aren’t aware of it,” agreed Dr. Cusi during a talk in December 2020 at the 18th World Congress on Insulin Resistance, Diabetes, and Cardiovascular Disease (WCIRDC). “You never find what you don’t look for.”

“Endocrinologists should do the tests for NASH [in patients with T2D], but we’re all guilty of not doing it enough,” Tracey McLaughlin, MD, an endocrinologist and professor of medicine at Stanford (Calif.) University, commented during the WCIRDC.

These prevalence numbers demand that clinicians suspect liver disease “in any patient with diabetes, especially patients with obesity who are older and have components of metabolic syndrome,” said Dr. Mantzoros. “We need to screen, refer the most advanced cases, and treat the early- and mid-stage cases.”
 

How to find NASH

Both the American Diabetes Association and the European Association for the Study of Diabetes call for routine screening of patients with T2D, starting with a check of liver enzymes, such as ALT, but no clear consensus exists for the specifics of screening beyond that. Dr. Mantzoros, Dr. Cusi, and other experts agree that the scheme for assessing liver disease in patients with T2D starts with regular monitoring of elevations in liver enzymes including ALT. Next is noninvasive ultrasound assessment of the extent of liver fibrosis inferred from the organ’s stiffness using transient elastography. Another frequently cited initial screening tool is the Fibrosis-4 (FIB-4) score, which incorporates a patient’s age, platelet count, and levels of ALT and a second liver enzyme, AST.

“There is more consensus about FIB-4 and then elastography, but some people use tests other than FIB-4. Unfortunately there is no perfect diagnostic test today. A top priority is to define the best diagnostic test,” said Dr. Mantzoros, who is leading an effort to try to refine screening using artificial intelligence.

“FIB-4 is simple, easy, and well validated,” commented Dr. Cusi during the WCIRDC last December. “FIB-4 and elastography should get you pretty close” to identifying patients with T2D and significant liver disease.

But in a recent editorial, Dr. Cusi agreed on the need for “more reliable tests for the diagnosis of NASH and advanced fibrosis in patients with T2D. Significant work is being done in the field to validate novel and more sophisticated fibrosis biomarkers. Future studies will help us enter a new era of precision medicine where biomarkers will identify and target therapy to those with more active disease at risk for cirrhosis,” he wrote.

“The ultimate goal is to diagnose fibrosis at an early stage to prevent people from developing cirrhosis,” Dr. Cusi said in a recent written statement. “We’re trying to identify these problems before they’re unfixable. Once someone has cirrhosis, there isn’t a whole lot you can do.”
 

Pioglitazone remains the best-documented treatment

Perhaps some of the inertia in diagnosing NAFLD, NASH, and liver fibrosis in patients with T2D is dissatisfaction with current treatment options, although several proven options exist, notably weight loss and diet, and thiazolidinedione (TZD) pioglitazone. But weight loss and diet pose issues for patient compliance and durability of the intervention, and many clinicians consider pioglitazone flawed by its potential adverse effects.

“When we don’t have an established treatment for something, we tend to not measure it or go after it. That’s been true of liver disease” in patients with T2D, said Yehuda Handelsman, MD, an endocrinologist and diabetes specialist who is medical director of the Metabolic Institute of America in Tarzana, Calif., during the WCIRDC.

Treatment with pioglitazone has resolved NASH in about a third of patients compared with placebo, prevented fibrosis progression, and cut cardiovascular disease events, noted Dr. Cusi during the WCIRDC.

“Pioglitazone is used in only 8% of patients with T2D, or less, but we need to use it more often because of its proven efficacy in patients with T2D and NASH” said Dr. Mantzoros. “The problem is that pioglitazone has side effects, including weight gain and fluid retention, that makes it less attractive unless one thinks about the diagnosis of NASH.”

Others highlight that the adverse effects of pioglitazone have been either misunderstood, or can be effectively minimized with careful dosing.

“The data with the TZDs are much stronger than the data from anything else. TZDs have gotten a bad name because they also work in the kidney and enhance fluid reabsorption. We use modest dosages of pioglitazone, 15 mg or 30 mg a day, to avoid excess fluid retention,” Ralph A. DeFronzo, MD, chief of the diabetes division and professor of medicine at the University of Texas Health Science Center, San Antonio, said during the WCIRDC. “The best drug for NASH is pioglitazone. No other drug beats it” based on current data, Dr. DeFronzo asserted.

Other strategies include the potential to pair pioglitazone with other interventions that can blunt a weight-gain effect. One intriguing combination would combine pioglitazone with a GLP-1 receptor agonist, a drug class that can produce significant weight loss. Results from a phase 2 study showed promise for semaglutide (Rybelsus) in treating patients with NASH.
 

Getting the name right

Another factor that may be keeping NAFLD and NASH from achieving a higher profile for patients with T2D are those names, which focus on what the diseases are not – nonalcoholic – rather than what they are.

A series of recent publications in both the endocrinology and hepatology literature have called for renaming these disorders either “metabolic (dysfunction)–associated fatty liver disease (MALFD)”, or “dysmetabolism-associated fatty liver disease (DALFD)”.

“The names NAFLD and NASH indicate absence of alcohol as a cause, but the disease is also characterized by the absence of other causes, such as autoimmune disorders or hepatitis. The names were coined when we did not know much about these diseases. We now know that it is dysmetabolism that causes these conditions, and so we need to adopt a new, more accurate name,” explained Dr. Mantzoros, who has published support for a name change.

While many agree, some have raised concerns as to whether a name change now is premature. A group of hepatologists recently published a rebuttal to an immediate name change , saying that, “although we are in agreement that metabolic fatty liver disease may more accurately and positively reflect the relevant risk factors better than the age-old term nonalcoholic fatty liver disease, the term still leaves a great deal of ambiguity. A name change will be appropriate when informed by a new understanding of the molecular basis of the disease entity, insights that fundamentally change risk stratification, or other important aspects of the disease. We may be on the cusp of this, but we are not there yet.”

Dr. Mantzoros agreed, but for somewhat different reasons.

“We need to be careful and deliberate, because there is a significant body of knowledge and a lot of data from clinical trials collected using the old definitions. We need to find an appropriate time frame for a [name] transition. We need to find a nice and robust way to productively bridge the old to the new,” he said. “We also need new diagnostic criteria, and new therapies. A new name and definition will facilitate progress.”

Dr. Mantzoros been a shareholder of and consultant to Coherus and Pangea, he has been a consultant to AstraZeneca, Eisai, Genfit, Intercept, Novo Nordisk, P.E.S., and Regeneron, and has received travel support from the Metabolic Institute of America and the California Walnut Commission. Dr. Cusi has been a consultant to and has received research funding from numerous drug companies. Dr. McLaughlin is a consultant to January AI. Dr. Handelsman has been a consultant to numerous drug companies. Dr. DeFronzo received research grants from AstraZeneca, Janssen, and Merck; he has been an adviser to AstraZeneca, Boehringer Ingelheim, Intarcia, Janssen, and Novo Nordisk; and he has been a speaker on behalf of AstraZeneca and Novo Nordisk.

[email protected]

Mounting evidence of strikingly high prevalence rates of fatty liver disease, advanced fibrosis, and cirrhosis among patients with type 2 diabetes has led to calls for heightened awareness and screening to identify these patients and target treatments to reduce their risk for irreversible liver damage.

Courtesy Dr. Christos S. Mantzoros

Among these calls is a pending statement from the Endocrine Society, the American Association of Clinical Endocrinologists, the American Gastroenterology Association, and other groups on what the growing appreciation of highly prevalent liver disease in patients with type 2 diabetes (T2D) means for assessing and managing patients. Publication of the statement is expected by spring 2021, said Christos S. Mantzoros, MD, DSc, PhD, chief of endocrinology for the Veterans Affairs Boston Healthcare System and a representative from the Endocrine Society to the statement-writing panel.

This upcoming “Call to Action” from these groups argues for a “need to collaborate across disciplines, and work together on establishing clinical guidelines, and creating new diagnostics and therapeutics,” said Dr. Mantzoros in an interview.

“Over time, it is becoming clearer that management of NAFLD [nonalcoholic fatty liver disease]/NASH [nonalcoholic steatohepatitis] requires a multidisciplinary panel of doctors ranging from primary care practitioners, to endocrinologists, and hepatologists. Given that the nature of the disease crosses scientific discipline boundaries, and that the number of patients is so large (it is estimated that about one in four U.S. adults have NAFLD), not all patients can be treated at the limited number of hepatology centers.

“However, not all stakeholders have fully realized this fact, and no effort had been undertaken so far by any professional society to develop a coordinated approach and clinical care pathway for NAFLD/NASH. The ‘Call to Action’ meeting can be considered as a starting point for such an important effort,” said Dr. Mantzoros, who is also a professor of medicine at Harvard Medical School and director of the human nutrition unit at Beth Israel Deaconess Medical Center, both in Boston.
 

Dramatic prevalence rates in patients with T2D

Results from two independent epidemiology reports, published in December 2020, documented steatosis (the fatty liver of NAFLD) in 70%-74% of unselected U.S. patients with T2D, advanced liver fibrosis accompanying this disease in 6%-15%, and previously unrecognized cirrhosis in 3%-8%.

One of these reports analyzed 825 patients with T2D included in the National Health and Nutritional Examination Survey of 2017-2018 run by the Centers for Disease Control and Prevention. All these patients, selected to be representative of the overall U.S. adult population with T2D, underwent transient elastography to identify steatosis and fibrosis, the first U.S. National Health Survey to run this type of population-based survey. The results showed an overall steatosis prevalence of 74% with grade 3 steatosis in 58%, advanced liver fibrosis in 15%, and cirrhosis in 8%, reported the team of Italian researchers who analyzed the data .

The second study focused on a single-center series of 561 patients with T2D who also underwent screening by transient elastography during 2018-2020 and had no history of NAFLD or other liver disease, or alcohol abuse. The imaging results showed a NAFLD prevalence of 70%, with 54% of the entire group diagnosed with severe steatosis, severe fibrosis in 6%, and cirrhosis in 3%. Among the 54% of patients with severe steatosis, 30% also had severe liver fibrosis. About 70% of the 561 patients assessed came from either the family medicine or general internal medicine clinics of the University of Florida, Gainesville, with the remaining 30% enrolled from the center’s endocrinology/diabetes outpatient clinic.

Neither report documented a NASH prevalence, which cannot receive definitive diagnosis by imaging alone. “This is the first study of its kind in the U.S. to establish the magnitude of [liver] disease burden in random patients with T2D seeking regular outpatient care,” wrote the University of Florida research team, led by Kenneth Cusi, MD, professor and chief of the university’s division of endocrinology, diabetes, and metabolism. Their finding that patients with T2D and previously unknown to have NAFLD had a 15% prevalence of moderate or advanced liver fibrosis “should trigger a call to action by all clinicians taking care of patients with T2D. Patient and physician awareness of the hepatic and extrahepatic complications of NASH, and reversing current diagnosis and treatment inertia will be the only way to avert the looming epidemic of cirrhosis in patients with diabetes.”

“Endocrinologists don’t ‘see’ NAFLD and NASH” in their patients with T2D “ because they don’t think about it,” Dr. Mantzoros declared.

Doug Brunk/Frontline Medical News

“Why is NASH underdiagnosed and undertreated? Because many physicians aren’t aware of it,” agreed Dr. Cusi during a talk in December 2020 at the 18th World Congress on Insulin Resistance, Diabetes, and Cardiovascular Disease (WCIRDC). “You never find what you don’t look for.”

“Endocrinologists should do the tests for NASH [in patients with T2D], but we’re all guilty of not doing it enough,” Tracey McLaughlin, MD, an endocrinologist and professor of medicine at Stanford (Calif.) University, commented during the WCIRDC.

These prevalence numbers demand that clinicians suspect liver disease “in any patient with diabetes, especially patients with obesity who are older and have components of metabolic syndrome,” said Dr. Mantzoros. “We need to screen, refer the most advanced cases, and treat the early- and mid-stage cases.”
 

How to find NASH

Both the American Diabetes Association and the European Association for the Study of Diabetes call for routine screening of patients with T2D, starting with a check of liver enzymes, such as ALT, but no clear consensus exists for the specifics of screening beyond that. Dr. Mantzoros, Dr. Cusi, and other experts agree that the scheme for assessing liver disease in patients with T2D starts with regular monitoring of elevations in liver enzymes including ALT. Next is noninvasive ultrasound assessment of the extent of liver fibrosis inferred from the organ’s stiffness using transient elastography. Another frequently cited initial screening tool is the Fibrosis-4 (FIB-4) score, which incorporates a patient’s age, platelet count, and levels of ALT and a second liver enzyme, AST.

“There is more consensus about FIB-4 and then elastography, but some people use tests other than FIB-4. Unfortunately there is no perfect diagnostic test today. A top priority is to define the best diagnostic test,” said Dr. Mantzoros, who is leading an effort to try to refine screening using artificial intelligence.

“FIB-4 is simple, easy, and well validated,” commented Dr. Cusi during the WCIRDC last December. “FIB-4 and elastography should get you pretty close” to identifying patients with T2D and significant liver disease.

But in a recent editorial, Dr. Cusi agreed on the need for “more reliable tests for the diagnosis of NASH and advanced fibrosis in patients with T2D. Significant work is being done in the field to validate novel and more sophisticated fibrosis biomarkers. Future studies will help us enter a new era of precision medicine where biomarkers will identify and target therapy to those with more active disease at risk for cirrhosis,” he wrote.

“The ultimate goal is to diagnose fibrosis at an early stage to prevent people from developing cirrhosis,” Dr. Cusi said in a recent written statement. “We’re trying to identify these problems before they’re unfixable. Once someone has cirrhosis, there isn’t a whole lot you can do.”
 

Pioglitazone remains the best-documented treatment

Perhaps some of the inertia in diagnosing NAFLD, NASH, and liver fibrosis in patients with T2D is dissatisfaction with current treatment options, although several proven options exist, notably weight loss and diet, and thiazolidinedione (TZD) pioglitazone. But weight loss and diet pose issues for patient compliance and durability of the intervention, and many clinicians consider pioglitazone flawed by its potential adverse effects.

“When we don’t have an established treatment for something, we tend to not measure it or go after it. That’s been true of liver disease” in patients with T2D, said Yehuda Handelsman, MD, an endocrinologist and diabetes specialist who is medical director of the Metabolic Institute of America in Tarzana, Calif., during the WCIRDC.

Treatment with pioglitazone has resolved NASH in about a third of patients compared with placebo, prevented fibrosis progression, and cut cardiovascular disease events, noted Dr. Cusi during the WCIRDC.

“Pioglitazone is used in only 8% of patients with T2D, or less, but we need to use it more often because of its proven efficacy in patients with T2D and NASH” said Dr. Mantzoros. “The problem is that pioglitazone has side effects, including weight gain and fluid retention, that makes it less attractive unless one thinks about the diagnosis of NASH.”

Others highlight that the adverse effects of pioglitazone have been either misunderstood, or can be effectively minimized with careful dosing.

“The data with the TZDs are much stronger than the data from anything else. TZDs have gotten a bad name because they also work in the kidney and enhance fluid reabsorption. We use modest dosages of pioglitazone, 15 mg or 30 mg a day, to avoid excess fluid retention,” Ralph A. DeFronzo, MD, chief of the diabetes division and professor of medicine at the University of Texas Health Science Center, San Antonio, said during the WCIRDC. “The best drug for NASH is pioglitazone. No other drug beats it” based on current data, Dr. DeFronzo asserted.

Other strategies include the potential to pair pioglitazone with other interventions that can blunt a weight-gain effect. One intriguing combination would combine pioglitazone with a GLP-1 receptor agonist, a drug class that can produce significant weight loss. Results from a phase 2 study showed promise for semaglutide (Rybelsus) in treating patients with NASH.
 

Getting the name right

Another factor that may be keeping NAFLD and NASH from achieving a higher profile for patients with T2D are those names, which focus on what the diseases are not – nonalcoholic – rather than what they are.

A series of recent publications in both the endocrinology and hepatology literature have called for renaming these disorders either “metabolic (dysfunction)–associated fatty liver disease (MALFD)”, or “dysmetabolism-associated fatty liver disease (DALFD)”.

“The names NAFLD and NASH indicate absence of alcohol as a cause, but the disease is also characterized by the absence of other causes, such as autoimmune disorders or hepatitis. The names were coined when we did not know much about these diseases. We now know that it is dysmetabolism that causes these conditions, and so we need to adopt a new, more accurate name,” explained Dr. Mantzoros, who has published support for a name change.

While many agree, some have raised concerns as to whether a name change now is premature. A group of hepatologists recently published a rebuttal to an immediate name change , saying that, “although we are in agreement that metabolic fatty liver disease may more accurately and positively reflect the relevant risk factors better than the age-old term nonalcoholic fatty liver disease, the term still leaves a great deal of ambiguity. A name change will be appropriate when informed by a new understanding of the molecular basis of the disease entity, insights that fundamentally change risk stratification, or other important aspects of the disease. We may be on the cusp of this, but we are not there yet.”

Dr. Mantzoros agreed, but for somewhat different reasons.

“We need to be careful and deliberate, because there is a significant body of knowledge and a lot of data from clinical trials collected using the old definitions. We need to find an appropriate time frame for a [name] transition. We need to find a nice and robust way to productively bridge the old to the new,” he said. “We also need new diagnostic criteria, and new therapies. A new name and definition will facilitate progress.”

Dr. Mantzoros been a shareholder of and consultant to Coherus and Pangea, he has been a consultant to AstraZeneca, Eisai, Genfit, Intercept, Novo Nordisk, P.E.S., and Regeneron, and has received travel support from the Metabolic Institute of America and the California Walnut Commission. Dr. Cusi has been a consultant to and has received research funding from numerous drug companies. Dr. McLaughlin is a consultant to January AI. Dr. Handelsman has been a consultant to numerous drug companies. Dr. DeFronzo received research grants from AstraZeneca, Janssen, and Merck; he has been an adviser to AstraZeneca, Boehringer Ingelheim, Intarcia, Janssen, and Novo Nordisk; and he has been a speaker on behalf of AstraZeneca and Novo Nordisk.

[email protected]

In an effort to counteract alarming trends in rising hepatitis infections, the U.S. Department of Health and Human Services has developed and released its Viral Hepatitis National Strategic Plan 2021-2025, which aims to eliminate viral hepatitis infection in the United States by 2030.

sarathsasidharan/Thinkstock

An estimated 3.3 million people in the United States were chronically infected with hepatitis B (HBV) and hepatitis C (HCV) as of 2016. In addition, the country “is currently facing unprecedented hepatitis A (HAV) outbreaks, while progress in preventing hepatitis B has stalled, and hepatitis C rates nearly tripled from 2011 to 2018,” according to the HHS.

The new plan, “A Roadmap to Elimination for the United States,” builds upon previous initiatives the HHS has made to tackle the diseases and was coordinated by the Office of the Assistant Secretary for Health through the Office of Infectious Disease and HIV/AIDS Policy.

The plan focuses on HAV, HBV, and HCV, which have the largest impact on the health of the nation, according to the HHS. The plan addresses populations with the highest burden of viral hepatitis based on nationwide data so that resources can be focused there to achieve the greatest impact. Persons who inject drugs are a priority population for all three hepatitis viruses. HAV efforts will also include a focus on the homeless population. HBV efforts will also focus on Asian and Pacific Islander and the Black, non-Hispanic populations, while HCV efforts will include a focus on Black, non-Hispanic people, people born during 1945-1965, people with HIV, and the American Indian/Alaska Native population.
 

Goal-setting

There are five main goals outlined in the plan, according to the HHS:

• Prevent new hepatitis infections.
• Improve hepatitis-related health outcomes of people with viral hepatitis.
• Reduce hepatitis-related disparities and health inequities.
• Improve hepatitis surveillance and data use.
• Achieve integrated, coordinated efforts that address the viral hepatitis epidemics among all partners and stakeholders.

“The United States will be a place where new viral hepatitis infections are prevented, every person knows their status, and every person with viral hepatitis has high-quality health care and treatment and lives free from stigma and discrimination. This vision includes all people, regardless of age, sex, gender identity, sexual orientation, race, ethnicity, religion, disability, geographic location, or socioeconomic circumstance,” according to the HHS vision statement.

[email protected]

In an effort to counteract alarming trends in rising hepatitis infections, the U.S. Department of Health and Human Services has developed and released its Viral Hepatitis National Strategic Plan 2021-2025, which aims to eliminate viral hepatitis infection in the United States by 2030.

sarathsasidharan/Thinkstock

An estimated 3.3 million people in the United States were chronically infected with hepatitis B (HBV) and hepatitis C (HCV) as of 2016. In addition, the country “is currently facing unprecedented hepatitis A (HAV) outbreaks, while progress in preventing hepatitis B has stalled, and hepatitis C rates nearly tripled from 2011 to 2018,” according to the HHS.

The new plan, “A Roadmap to Elimination for the United States,” builds upon previous initiatives the HHS has made to tackle the diseases and was coordinated by the Office of the Assistant Secretary for Health through the Office of Infectious Disease and HIV/AIDS Policy.

The plan focuses on HAV, HBV, and HCV, which have the largest impact on the health of the nation, according to the HHS. The plan addresses populations with the highest burden of viral hepatitis based on nationwide data so that resources can be focused there to achieve the greatest impact. Persons who inject drugs are a priority population for all three hepatitis viruses. HAV efforts will also include a focus on the homeless population. HBV efforts will also focus on Asian and Pacific Islander and the Black, non-Hispanic populations, while HCV efforts will include a focus on Black, non-Hispanic people, people born during 1945-1965, people with HIV, and the American Indian/Alaska Native population.
 

Goal-setting

There are five main goals outlined in the plan, according to the HHS:

• Prevent new hepatitis infections.
• Improve hepatitis-related health outcomes of people with viral hepatitis.
• Reduce hepatitis-related disparities and health inequities.
• Improve hepatitis surveillance and data use.
• Achieve integrated, coordinated efforts that address the viral hepatitis epidemics among all partners and stakeholders.

“The United States will be a place where new viral hepatitis infections are prevented, every person knows their status, and every person with viral hepatitis has high-quality health care and treatment and lives free from stigma and discrimination. This vision includes all people, regardless of age, sex, gender identity, sexual orientation, race, ethnicity, religion, disability, geographic location, or socioeconomic circumstance,” according to the HHS vision statement.

[email protected]

In an effort to counteract alarming trends in rising hepatitis infections, the U.S. Department of Health and Human Services has developed and released its Viral Hepatitis National Strategic Plan 2021-2025, which aims to eliminate viral hepatitis infection in the United States by 2030.

sarathsasidharan/Thinkstock

An estimated 3.3 million people in the United States were chronically infected with hepatitis B (HBV) and hepatitis C (HCV) as of 2016. In addition, the country “is currently facing unprecedented hepatitis A (HAV) outbreaks, while progress in preventing hepatitis B has stalled, and hepatitis C rates nearly tripled from 2011 to 2018,” according to the HHS.

The new plan, “A Roadmap to Elimination for the United States,” builds upon previous initiatives the HHS has made to tackle the diseases and was coordinated by the Office of the Assistant Secretary for Health through the Office of Infectious Disease and HIV/AIDS Policy.

The plan focuses on HAV, HBV, and HCV, which have the largest impact on the health of the nation, according to the HHS. The plan addresses populations with the highest burden of viral hepatitis based on nationwide data so that resources can be focused there to achieve the greatest impact. Persons who inject drugs are a priority population for all three hepatitis viruses. HAV efforts will also include a focus on the homeless population. HBV efforts will also focus on Asian and Pacific Islander and the Black, non-Hispanic populations, while HCV efforts will include a focus on Black, non-Hispanic people, people born during 1945-1965, people with HIV, and the American Indian/Alaska Native population.
 

Goal-setting

There are five main goals outlined in the plan, according to the HHS:

• Prevent new hepatitis infections.
• Improve hepatitis-related health outcomes of people with viral hepatitis.
• Reduce hepatitis-related disparities and health inequities.
• Improve hepatitis surveillance and data use.
• Achieve integrated, coordinated efforts that address the viral hepatitis epidemics among all partners and stakeholders.

“The United States will be a place where new viral hepatitis infections are prevented, every person knows their status, and every person with viral hepatitis has high-quality health care and treatment and lives free from stigma and discrimination. This vision includes all people, regardless of age, sex, gender identity, sexual orientation, race, ethnicity, religion, disability, geographic location, or socioeconomic circumstance,” according to the HHS vision statement.

[email protected]

A growing body of evidence suggests that patients with COVID-19 and preexisting liver disease face increased risks of decompensation and mortality, according to a review of recent literature.

The review aimed to bring together the best approaches for caring for patients with preexisting liver conditions based on recommendations from three major hepatology societies. Findings in included studies could guide clinical decision-making, but a reliable framework for patient management has yet to be established, most likely because of limited research, according to lead author Abdul Mohammed, MD, of Case Western Reserve University, Cleveland, and colleagues.

The relationship between chronic liver diseases and “COVID-19 is not well documented in the literature,” Dr. Mohammed and colleagues wrote in the Journal of Clinical Gastroenterology. “The intricate interplay between immune dysfunction in preexisting liver diseases and the immune dysregulation triggered by the SARS-CoV-2 virus needs further evaluation.”

Such knowledge gaps likely explain the inconsistencies in recommendations between major hepatology societies, including clinical guidance from the American Association for the Study of Liver Disease, the European Association for the Study of the Liver, and the Asian Pacific Association for the Study of the Liver.

Both the literature review and the societal guidance address nonalcoholic fatty liver disease (NAFLD), hepatitis B virus (HBV) infection, autoimmune hepatitis, hepatocellular carcinoma (HCC), cirrhosis, and liver transplantation.

Dr. Mohammed and colleagues first offered an update of the relationship between COVID-19 and liver pathology. While it is clear that SARS-CoV-2 gains hepatic access through binding to ACE2 receptors in bile duct epithelial cells, it remains unclear whether this results in direct hepatic injury or indirect damage from virus-mediated cytokine release. Regardless, more than 90% of patients hospitalized for COVID-19 may develop increased levels of ALT and AST, and these elevations “appear to mirror disease severity,” the investigators wrote.

They noted that severity of COVID-19 appears to correlate with type of preexisting liver disease. For example, one study in the review associated NAFLD with a significantly increased risk of progressive COVID-19 (odds ratio, 6.4; 95% confidence interval, 1.5-31.2), and it also found that patients with NAFLD had longer duration of viral shedding than those without (17 vs. 12 days). Although the AASLD and APASL give no specific recommendations, the EASL recommends prioritizing COVID-19 patients with NAFLD.

Cirrhosis has been associated with a fourfold increased risk of mortality (relative risk, 4.6; 95% CI, 2.6-8.3) According to data from two international self-reporting registries, COVIDHep.net and COVIDCirrhosis.org, likelihood of death appears to move in tandem with Child-Turcotte-Pugh scores. Decompensated cirrhosis appears to predispose patients to having pulmonary complications, but more studies exploring this correlation need to be performed, according to the review authors. One study found that acute-on-chronic liver failure or acute decompensation occurred in 20% of patients who had COVID-19 and cirrhosis. It’s little surprise, then, that both the AASLD and the EASL recommend prioritizing in person evaluation for patients with decompensated cirrhosis.

Chronic HBV infection has also been associated with a higher COVID-19 mortality rate, although Dr. Mohammed and colleagues suggested that “larger studies are needed.” The review notes that the three societies recommend initiating HBV treatment only if there is clinical suspicion of hepatitis flare.

Findings are also cloudy among patients with autoimmune hepatitis and liver transplant recipients; however, the investigators noted that COVID-19 causes tissue damage primarily through cytokine release, and suggested that “immunosuppression can potentially curb this response.” Even so, recommendations from leading hepatology societies allude to a safe middle ground of immunosuppression, albeit with indistinct borders. All three caution against withdrawing immunosuppression, but the societies each describe tailoring regimens in different ways and for different patients, emphasizing continued corticosteroid treatments, according to the review.

Guidance also varies for management of HCC. “Since the tumor doubling time is 4-8 months and current guidelines recommend screening every 6 months, in patients at lower risk for developing HCC, a 2-month delay in ultrasound surveillance has been suggested by the AASLD,” the review authors noted. “In patients with a high risk of developing HCC, 6-month interval screening should be continued.” The AASLD recommends proceeding with treatment with newly diagnosed HCC, the EASL suggests that checkpoint inhibitors should be withheld and locoregional therapies should be postponed, and the APASL calls for a less frequent schedule of tyrosine kinase inhibitors and immunotherapy.

“COVID-19 patients with the preexisting liver disease face a higher risk of decompensation and mortality,” the review authors concluded. “We presented the most up-to-date literature on preexisting liver disease and its interaction with COVID-19.”

For the latest clinical guidance, education, research and physician resources about coronavirus, visit the AGA COVID-19 Resource Center at www.gastro.org/COVID. 

A growing body of evidence suggests that patients with COVID-19 and preexisting liver disease face increased risks of decompensation and mortality, according to a review of recent literature.

The review aimed to bring together the best approaches for caring for patients with preexisting liver conditions based on recommendations from three major hepatology societies. Findings in included studies could guide clinical decision-making, but a reliable framework for patient management has yet to be established, most likely because of limited research, according to lead author Abdul Mohammed, MD, of Case Western Reserve University, Cleveland, and colleagues.

The relationship between chronic liver diseases and “COVID-19 is not well documented in the literature,” Dr. Mohammed and colleagues wrote in the Journal of Clinical Gastroenterology. “The intricate interplay between immune dysfunction in preexisting liver diseases and the immune dysregulation triggered by the SARS-CoV-2 virus needs further evaluation.”

Such knowledge gaps likely explain the inconsistencies in recommendations between major hepatology societies, including clinical guidance from the American Association for the Study of Liver Disease, the European Association for the Study of the Liver, and the Asian Pacific Association for the Study of the Liver.

Both the literature review and the societal guidance address nonalcoholic fatty liver disease (NAFLD), hepatitis B virus (HBV) infection, autoimmune hepatitis, hepatocellular carcinoma (HCC), cirrhosis, and liver transplantation.

Dr. Mohammed and colleagues first offered an update of the relationship between COVID-19 and liver pathology. While it is clear that SARS-CoV-2 gains hepatic access through binding to ACE2 receptors in bile duct epithelial cells, it remains unclear whether this results in direct hepatic injury or indirect damage from virus-mediated cytokine release. Regardless, more than 90% of patients hospitalized for COVID-19 may develop increased levels of ALT and AST, and these elevations “appear to mirror disease severity,” the investigators wrote.

They noted that severity of COVID-19 appears to correlate with type of preexisting liver disease. For example, one study in the review associated NAFLD with a significantly increased risk of progressive COVID-19 (odds ratio, 6.4; 95% confidence interval, 1.5-31.2), and it also found that patients with NAFLD had longer duration of viral shedding than those without (17 vs. 12 days). Although the AASLD and APASL give no specific recommendations, the EASL recommends prioritizing COVID-19 patients with NAFLD.

Cirrhosis has been associated with a fourfold increased risk of mortality (relative risk, 4.6; 95% CI, 2.6-8.3) According to data from two international self-reporting registries, COVIDHep.net and COVIDCirrhosis.org, likelihood of death appears to move in tandem with Child-Turcotte-Pugh scores. Decompensated cirrhosis appears to predispose patients to having pulmonary complications, but more studies exploring this correlation need to be performed, according to the review authors. One study found that acute-on-chronic liver failure or acute decompensation occurred in 20% of patients who had COVID-19 and cirrhosis. It’s little surprise, then, that both the AASLD and the EASL recommend prioritizing in person evaluation for patients with decompensated cirrhosis.

Chronic HBV infection has also been associated with a higher COVID-19 mortality rate, although Dr. Mohammed and colleagues suggested that “larger studies are needed.” The review notes that the three societies recommend initiating HBV treatment only if there is clinical suspicion of hepatitis flare.

Findings are also cloudy among patients with autoimmune hepatitis and liver transplant recipients; however, the investigators noted that COVID-19 causes tissue damage primarily through cytokine release, and suggested that “immunosuppression can potentially curb this response.” Even so, recommendations from leading hepatology societies allude to a safe middle ground of immunosuppression, albeit with indistinct borders. All three caution against withdrawing immunosuppression, but the societies each describe tailoring regimens in different ways and for different patients, emphasizing continued corticosteroid treatments, according to the review.

Guidance also varies for management of HCC. “Since the tumor doubling time is 4-8 months and current guidelines recommend screening every 6 months, in patients at lower risk for developing HCC, a 2-month delay in ultrasound surveillance has been suggested by the AASLD,” the review authors noted. “In patients with a high risk of developing HCC, 6-month interval screening should be continued.” The AASLD recommends proceeding with treatment with newly diagnosed HCC, the EASL suggests that checkpoint inhibitors should be withheld and locoregional therapies should be postponed, and the APASL calls for a less frequent schedule of tyrosine kinase inhibitors and immunotherapy.

“COVID-19 patients with the preexisting liver disease face a higher risk of decompensation and mortality,” the review authors concluded. “We presented the most up-to-date literature on preexisting liver disease and its interaction with COVID-19.”

For the latest clinical guidance, education, research and physician resources about coronavirus, visit the AGA COVID-19 Resource Center at www.gastro.org/COVID. 

A growing body of evidence suggests that patients with COVID-19 and preexisting liver disease face increased risks of decompensation and mortality, according to a review of recent literature.

The review aimed to bring together the best approaches for caring for patients with preexisting liver conditions based on recommendations from three major hepatology societies. Findings in included studies could guide clinical decision-making, but a reliable framework for patient management has yet to be established, most likely because of limited research, according to lead author Abdul Mohammed, MD, of Case Western Reserve University, Cleveland, and colleagues.

The relationship between chronic liver diseases and “COVID-19 is not well documented in the literature,” Dr. Mohammed and colleagues wrote in the Journal of Clinical Gastroenterology. “The intricate interplay between immune dysfunction in preexisting liver diseases and the immune dysregulation triggered by the SARS-CoV-2 virus needs further evaluation.”

Such knowledge gaps likely explain the inconsistencies in recommendations between major hepatology societies, including clinical guidance from the American Association for the Study of Liver Disease, the European Association for the Study of the Liver, and the Asian Pacific Association for the Study of the Liver.

Both the literature review and the societal guidance address nonalcoholic fatty liver disease (NAFLD), hepatitis B virus (HBV) infection, autoimmune hepatitis, hepatocellular carcinoma (HCC), cirrhosis, and liver transplantation.

Dr. Mohammed and colleagues first offered an update of the relationship between COVID-19 and liver pathology. While it is clear that SARS-CoV-2 gains hepatic access through binding to ACE2 receptors in bile duct epithelial cells, it remains unclear whether this results in direct hepatic injury or indirect damage from virus-mediated cytokine release. Regardless, more than 90% of patients hospitalized for COVID-19 may develop increased levels of ALT and AST, and these elevations “appear to mirror disease severity,” the investigators wrote.

They noted that severity of COVID-19 appears to correlate with type of preexisting liver disease. For example, one study in the review associated NAFLD with a significantly increased risk of progressive COVID-19 (odds ratio, 6.4; 95% confidence interval, 1.5-31.2), and it also found that patients with NAFLD had longer duration of viral shedding than those without (17 vs. 12 days). Although the AASLD and APASL give no specific recommendations, the EASL recommends prioritizing COVID-19 patients with NAFLD.

Cirrhosis has been associated with a fourfold increased risk of mortality (relative risk, 4.6; 95% CI, 2.6-8.3) According to data from two international self-reporting registries, COVIDHep.net and COVIDCirrhosis.org, likelihood of death appears to move in tandem with Child-Turcotte-Pugh scores. Decompensated cirrhosis appears to predispose patients to having pulmonary complications, but more studies exploring this correlation need to be performed, according to the review authors. One study found that acute-on-chronic liver failure or acute decompensation occurred in 20% of patients who had COVID-19 and cirrhosis. It’s little surprise, then, that both the AASLD and the EASL recommend prioritizing in person evaluation for patients with decompensated cirrhosis.

Chronic HBV infection has also been associated with a higher COVID-19 mortality rate, although Dr. Mohammed and colleagues suggested that “larger studies are needed.” The review notes that the three societies recommend initiating HBV treatment only if there is clinical suspicion of hepatitis flare.

Findings are also cloudy among patients with autoimmune hepatitis and liver transplant recipients; however, the investigators noted that COVID-19 causes tissue damage primarily through cytokine release, and suggested that “immunosuppression can potentially curb this response.” Even so, recommendations from leading hepatology societies allude to a safe middle ground of immunosuppression, albeit with indistinct borders. All three caution against withdrawing immunosuppression, but the societies each describe tailoring regimens in different ways and for different patients, emphasizing continued corticosteroid treatments, according to the review.

Guidance also varies for management of HCC. “Since the tumor doubling time is 4-8 months and current guidelines recommend screening every 6 months, in patients at lower risk for developing HCC, a 2-month delay in ultrasound surveillance has been suggested by the AASLD,” the review authors noted. “In patients with a high risk of developing HCC, 6-month interval screening should be continued.” The AASLD recommends proceeding with treatment with newly diagnosed HCC, the EASL suggests that checkpoint inhibitors should be withheld and locoregional therapies should be postponed, and the APASL calls for a less frequent schedule of tyrosine kinase inhibitors and immunotherapy.

“COVID-19 patients with the preexisting liver disease face a higher risk of decompensation and mortality,” the review authors concluded. “We presented the most up-to-date literature on preexisting liver disease and its interaction with COVID-19.”

For the latest clinical guidance, education, research and physician resources about coronavirus, visit the AGA COVID-19 Resource Center at www.gastro.org/COVID. 

An update of the U.S. Preventive Services Task Force recommendation for hepatitis B screening shows little change from the 2014 version, but some wonder if it should have gone farther than a risk-based approach.

The recommendation, which was published in JAMA, reinforces that screening should be conducted among adolescents and adults who are at increased risk of hepatitis B virus (HBV) infection. The USPSTF named six categories of individuals at increased risk of infection: Persons born in countries with a 2% or higher prevalence of hepatitis B, such as Asia, Africa, the Pacific Islands, and some areas of South America; unvaccinated individuals born in the United States to parents from regions with a very high prevalence of HBV (≥8%); HIV-positive individuals; those who use injected drugs; men who have sex with men; and people who live with people who have HBV or who have HBV-infected sexual partners. It also recommended that pregnant women be screened for HBV infection during their first prenatal visit.

“I view the updated recommendations as an important document because it validates the importance of HBV screening, and the Grade B recommendation supports mandated insurance coverage for the screening test,” said Joseph Lim, MD, who is a professor of medicine at Yale University and director of the Yale Viral Hepatitis Program, both in New Haven, Conn.

Still, the recommendation could have gone further. Notably absent from the USPSTF document, yet featured in recommendations from the Centers for Disease Control and Prevention and the American Association for the Study of Liver Disease, are patients who have diabetes, are on immunosuppressive therapy, or have elevated liver enzymes or liver disease. Furthermore, a single-center study found that, among physicians administering immunosuppressive therapy, a setting in which HBV reactivation is a concern, there were low rates of screening for HBV infection, and the physicians did not reliably identify high-risk patients.

“This may also be viewed as a lost opportunity. Evidence suggests that risk factor–based screening is ineffective for the identification of chronic conditions such as hepatitis B. Risk factor–based screening is difficult to implement across health systems and exacerbates the burden on community-based organizations that are motivated to address viral hepatitis. It may further exacerbate labeling, stigma, and discrimination within already marginalized communities that are deemed to be at high risk,” said Dr. Lim.

A similar view was expressed by Avegail Flores, MD, medical director of liver transplantation at the Michael E. DeBakey Veterans Affairs Medical Center and assistant professor of medicine at Baylor College of Medicine, both in Houston. “This is a good launching point, and with further evidence provided, hopefully it will also bring in a broader conversation about other persons who are at risk but not included in these criteria.” Neither Dr. Lim nor Dr. Flores were involved in the study.

She noted that resistance to universal screening may be caused by the relatively low prevalence of hepatitis B infection in the United States. However, the CDC estimates that only about 61% of people infected with HBV are aware of it. “I don’t think we have done a good job screening those who are at risk,” said Dr. Flores.

Universal screening could help, but would have a low yield. Dr. Flores suggested expansion into other at-risk groups, such as Baby Boomers. With respect to other risk groups that could be stigmatized or discriminated against, Dr. Flores recalled her medical school days when some students went directly into underserved communities to provide information and screening services. “We have to think of creative ways of how to reach out to people, not just relying on the usual physician-patient relationship.”

The issue is especially timely because the World Health Organization has declared a target to reduce new hepatitis B infections by 90% by 2030, and that will require addressing gaps in diagnosis. “That’s why these recommendations are so consequential. We are at a critical juncture in terms of global hepatitis elimination efforts. There is a time sensitive need to have multistakeholder engagement in ensuring that all aspects of the care cascade are addressed. Because of the central role of screening and diagnosis, it’s of critical importance that organizations such as USPSTF are in alignment with other organizations that have already issued clear guidance on who should be screened. It is (my) hope that further examination of the evidence-base will further support broadening USPSTF guidance to include a larger group of at-risk individuals, or ideally a universal screening strategy,” said Dr. Lim.

The recommendation’s authors received travel reimbursement for their involvement, and one author reported receiving grants and personal fees from Healthwise. Dr. Flores has no relevant financial disclosures. Dr. Lim is a member of the American Association for the Study of Liver Disease’s Viral Hepatitis Elimination Task Force.

SOURCE: U.S. Preventive Services Task Force. JAMA. 2020 Dec 15. doi: 10.1001/jama.2020.22980.

Updated Jan. 20, 2021

An update of the U.S. Preventive Services Task Force recommendation for hepatitis B screening shows little change from the 2014 version, but some wonder if it should have gone farther than a risk-based approach.

The recommendation, which was published in JAMA, reinforces that screening should be conducted among adolescents and adults who are at increased risk of hepatitis B virus (HBV) infection. The USPSTF named six categories of individuals at increased risk of infection: Persons born in countries with a 2% or higher prevalence of hepatitis B, such as Asia, Africa, the Pacific Islands, and some areas of South America; unvaccinated individuals born in the United States to parents from regions with a very high prevalence of HBV (≥8%); HIV-positive individuals; those who use injected drugs; men who have sex with men; and people who live with people who have HBV or who have HBV-infected sexual partners. It also recommended that pregnant women be screened for HBV infection during their first prenatal visit.

“I view the updated recommendations as an important document because it validates the importance of HBV screening, and the Grade B recommendation supports mandated insurance coverage for the screening test,” said Joseph Lim, MD, who is a professor of medicine at Yale University and director of the Yale Viral Hepatitis Program, both in New Haven, Conn.

Still, the recommendation could have gone further. Notably absent from the USPSTF document, yet featured in recommendations from the Centers for Disease Control and Prevention and the American Association for the Study of Liver Disease, are patients who have diabetes, are on immunosuppressive therapy, or have elevated liver enzymes or liver disease. Furthermore, a single-center study found that, among physicians administering immunosuppressive therapy, a setting in which HBV reactivation is a concern, there were low rates of screening for HBV infection, and the physicians did not reliably identify high-risk patients.

“This may also be viewed as a lost opportunity. Evidence suggests that risk factor–based screening is ineffective for the identification of chronic conditions such as hepatitis B. Risk factor–based screening is difficult to implement across health systems and exacerbates the burden on community-based organizations that are motivated to address viral hepatitis. It may further exacerbate labeling, stigma, and discrimination within already marginalized communities that are deemed to be at high risk,” said Dr. Lim.

A similar view was expressed by Avegail Flores, MD, medical director of liver transplantation at the Michael E. DeBakey Veterans Affairs Medical Center and assistant professor of medicine at Baylor College of Medicine, both in Houston. “This is a good launching point, and with further evidence provided, hopefully it will also bring in a broader conversation about other persons who are at risk but not included in these criteria.” Neither Dr. Lim nor Dr. Flores were involved in the study.

She noted that resistance to universal screening may be caused by the relatively low prevalence of hepatitis B infection in the United States. However, the CDC estimates that only about 61% of people infected with HBV are aware of it. “I don’t think we have done a good job screening those who are at risk,” said Dr. Flores.

Universal screening could help, but would have a low yield. Dr. Flores suggested expansion into other at-risk groups, such as Baby Boomers. With respect to other risk groups that could be stigmatized or discriminated against, Dr. Flores recalled her medical school days when some students went directly into underserved communities to provide information and screening services. “We have to think of creative ways of how to reach out to people, not just relying on the usual physician-patient relationship.”

The issue is especially timely because the World Health Organization has declared a target to reduce new hepatitis B infections by 90% by 2030, and that will require addressing gaps in diagnosis. “That’s why these recommendations are so consequential. We are at a critical juncture in terms of global hepatitis elimination efforts. There is a time sensitive need to have multistakeholder engagement in ensuring that all aspects of the care cascade are addressed. Because of the central role of screening and diagnosis, it’s of critical importance that organizations such as USPSTF are in alignment with other organizations that have already issued clear guidance on who should be screened. It is (my) hope that further examination of the evidence-base will further support broadening USPSTF guidance to include a larger group of at-risk individuals, or ideally a universal screening strategy,” said Dr. Lim.

The recommendation’s authors received travel reimbursement for their involvement, and one author reported receiving grants and personal fees from Healthwise. Dr. Flores has no relevant financial disclosures. Dr. Lim is a member of the American Association for the Study of Liver Disease’s Viral Hepatitis Elimination Task Force.

SOURCE: U.S. Preventive Services Task Force. JAMA. 2020 Dec 15. doi: 10.1001/jama.2020.22980.

Updated Jan. 20, 2021

An update of the U.S. Preventive Services Task Force recommendation for hepatitis B screening shows little change from the 2014 version, but some wonder if it should have gone farther than a risk-based approach.

The recommendation, which was published in JAMA, reinforces that screening should be conducted among adolescents and adults who are at increased risk of hepatitis B virus (HBV) infection. The USPSTF named six categories of individuals at increased risk of infection: Persons born in countries with a 2% or higher prevalence of hepatitis B, such as Asia, Africa, the Pacific Islands, and some areas of South America; unvaccinated individuals born in the United States to parents from regions with a very high prevalence of HBV (≥8%); HIV-positive individuals; those who use injected drugs; men who have sex with men; and people who live with people who have HBV or who have HBV-infected sexual partners. It also recommended that pregnant women be screened for HBV infection during their first prenatal visit.

“I view the updated recommendations as an important document because it validates the importance of HBV screening, and the Grade B recommendation supports mandated insurance coverage for the screening test,” said Joseph Lim, MD, who is a professor of medicine at Yale University and director of the Yale Viral Hepatitis Program, both in New Haven, Conn.

Still, the recommendation could have gone further. Notably absent from the USPSTF document, yet featured in recommendations from the Centers for Disease Control and Prevention and the American Association for the Study of Liver Disease, are patients who have diabetes, are on immunosuppressive therapy, or have elevated liver enzymes or liver disease. Furthermore, a single-center study found that, among physicians administering immunosuppressive therapy, a setting in which HBV reactivation is a concern, there were low rates of screening for HBV infection, and the physicians did not reliably identify high-risk patients.

“This may also be viewed as a lost opportunity. Evidence suggests that risk factor–based screening is ineffective for the identification of chronic conditions such as hepatitis B. Risk factor–based screening is difficult to implement across health systems and exacerbates the burden on community-based organizations that are motivated to address viral hepatitis. It may further exacerbate labeling, stigma, and discrimination within already marginalized communities that are deemed to be at high risk,” said Dr. Lim.

A similar view was expressed by Avegail Flores, MD, medical director of liver transplantation at the Michael E. DeBakey Veterans Affairs Medical Center and assistant professor of medicine at Baylor College of Medicine, both in Houston. “This is a good launching point, and with further evidence provided, hopefully it will also bring in a broader conversation about other persons who are at risk but not included in these criteria.” Neither Dr. Lim nor Dr. Flores were involved in the study.

She noted that resistance to universal screening may be caused by the relatively low prevalence of hepatitis B infection in the United States. However, the CDC estimates that only about 61% of people infected with HBV are aware of it. “I don’t think we have done a good job screening those who are at risk,” said Dr. Flores.

Universal screening could help, but would have a low yield. Dr. Flores suggested expansion into other at-risk groups, such as Baby Boomers. With respect to other risk groups that could be stigmatized or discriminated against, Dr. Flores recalled her medical school days when some students went directly into underserved communities to provide information and screening services. “We have to think of creative ways of how to reach out to people, not just relying on the usual physician-patient relationship.”

The issue is especially timely because the World Health Organization has declared a target to reduce new hepatitis B infections by 90% by 2030, and that will require addressing gaps in diagnosis. “That’s why these recommendations are so consequential. We are at a critical juncture in terms of global hepatitis elimination efforts. There is a time sensitive need to have multistakeholder engagement in ensuring that all aspects of the care cascade are addressed. Because of the central role of screening and diagnosis, it’s of critical importance that organizations such as USPSTF are in alignment with other organizations that have already issued clear guidance on who should be screened. It is (my) hope that further examination of the evidence-base will further support broadening USPSTF guidance to include a larger group of at-risk individuals, or ideally a universal screening strategy,” said Dr. Lim.

The recommendation’s authors received travel reimbursement for their involvement, and one author reported receiving grants and personal fees from Healthwise. Dr. Flores has no relevant financial disclosures. Dr. Lim is a member of the American Association for the Study of Liver Disease’s Viral Hepatitis Elimination Task Force.

SOURCE: U.S. Preventive Services Task Force. JAMA. 2020 Dec 15. doi: 10.1001/jama.2020.22980.

Updated Jan. 20, 2021

Exercise and a hypocaloric, Mediterranean-style diet remain first-line interventions that can benefit all patients with nonalcoholic fatty liver disease (NAFLD), according to a clinical practice update from the American Gastroenterological Association.

“[W]eight loss is associated with a reduction in liver fat, which provides a potential for reversal of disease progression,” wrote Zobair M. Younossi, MD, MPH, of Inova Fairfax Medical Campus in Falls Church, Va., with his associates. Lifestyle modifications remain “the cornerstone for management” because, even though NAFLD affects approximately 25% of individuals worldwide according to one meta-analytic assessment, interventions such as medications, bariatric endoscopy, and surgery are usually reserved for the subset of patients with severe obesity, comorbid diabetes, or nonalcoholic steatohepatitis (NASH) with at least stage 2 fibrosis, the experts wrote in Gastroenterology.

They note that clinically significant weight loss typically requires a hypocaloric diet of 1,200-1,500 kilocalories/day or a decrease of 500-1,000 kilocalories/day from baseline. A Mediterranean diet of fresh vegetables, fruits, legumes, minimally processed whole grains, fish, olive oil, nuts, and seeds is recommended because its antioxidant, anti-inflammatory effects may slow NAFLD progression. This diet minimizes or eliminates sweets, refined grains, and red and processed meats. Fructose from fruit is not associated with NAFLD, but patients should consume little or no commercially prepared fructose, which has been linked to visceral adiposity, insulin resistance, hepatic inflammation, and fibrosis progression. Other hypocaloric diets have not been studied enough to support their routine use in NAFLD treatment, according to the clinical practice update.

For patients with NASH, which is the more severe form of NAFLD and is associated with significant morbidity and mortality caused by complications from cirrhosis, hepatic decompensation, and hepatocellular carcinoma, weight loss also has a big impact: Losing at least 5% of total body weight can decrease hepatic steatosis, losing at least 7% can resolve NASH, and losing at least 10% can lessen or stabilize hepatic fibrosis, according to level 1 evidence cited by the update. Weight loss “can significantly impact all aspects of NAFLD histology including fibrosis, but a goal of 10% total body weight loss should be considered for patients with overweight or obese NAFLD,” the authors wrote. Fat loss also improves liver histology in patients with lean NAFLD (body mass index, 26 kg/m² in non-Asian patients or 24 in Asians), for whom a hypocaloric diet targeting a more modest 3%-5% total body weight loss is recommended.

Because aerobic exercise reduces hepatic fat levels independently of hypocaloric diet, patients with NAFLD should consider a weekly regimen of 150-300 minutes of moderate-intensity exercise or 75-150 minutes of vigorous activity. Resistance training can complement aerobic exercise “but [is] not a replacement,” the authors noted. In addition, patients with NAFLD should restrict alcohol consumption to reduce the risk for liver-related events, and those with advanced hepatic fibrosis should “avoid alcohol entirely.” These recommendations reflect the findings of a large prospective study in which the consumption of even low amounts of alcohol led to worse liver-related outcomes among patients with NAFLD.

Clinicians should screen for and “aggressively” manage common NAFLD comorbidities, including diabetes mellitus, hypertension, and obstructive sleep apnea, according to the clinical practice update. Patients with coexisting metabolic conditions should be risk-stratified for cardiovascular disease and treated based on guidelines from the American College of Cardiology and the American Heart Association.

It is believed that sarcopenia affects patients with NASH cirrhosis because their livers cannot effectively store, metabolize, or mobilize carbohydrates, which leads to a catabolic state in which protein and fat are used as energy sources, according to the update. To avoid exacerbations, these patients may need to optimize their protein intake – a minimum of 1.2-1.5 g/kg of body weight is recommended – from sources of branched-chain amino acids, such as chicken, fish, eggs, nuts, lentils, or soy. Patients with sarcopenic NAFLD also should consume small, frequent meals spaced no more than 4-6 hours apart. When possible, they should consult with a specialized nutritionist. Moderate-intensity exercise may also benefit patients experiencing sarcopenia.

The researchers disclosed ties to Gilead Sciences, Intercept, Bristol Myers Squibb, Novo Nordisk, and several other companies. The review was commissioned and approved by the AGA Institute’s Clinical Practice Updates Committee and the AGA Governing Board.

SOURCE: Younossi ZM et al. Gastroenterology. 2020 Dec 8. doi: 10.1053/j.gastro.2020.11.051.

This article was updated Feb. 10, 2021.

Exercise and a hypocaloric, Mediterranean-style diet remain first-line interventions that can benefit all patients with nonalcoholic fatty liver disease (NAFLD), according to a clinical practice update from the American Gastroenterological Association.

“[W]eight loss is associated with a reduction in liver fat, which provides a potential for reversal of disease progression,” wrote Zobair M. Younossi, MD, MPH, of Inova Fairfax Medical Campus in Falls Church, Va., with his associates. Lifestyle modifications remain “the cornerstone for management” because, even though NAFLD affects approximately 25% of individuals worldwide according to one meta-analytic assessment, interventions such as medications, bariatric endoscopy, and surgery are usually reserved for the subset of patients with severe obesity, comorbid diabetes, or nonalcoholic steatohepatitis (NASH) with at least stage 2 fibrosis, the experts wrote in Gastroenterology.

They note that clinically significant weight loss typically requires a hypocaloric diet of 1,200-1,500 kilocalories/day or a decrease of 500-1,000 kilocalories/day from baseline. A Mediterranean diet of fresh vegetables, fruits, legumes, minimally processed whole grains, fish, olive oil, nuts, and seeds is recommended because its antioxidant, anti-inflammatory effects may slow NAFLD progression. This diet minimizes or eliminates sweets, refined grains, and red and processed meats. Fructose from fruit is not associated with NAFLD, but patients should consume little or no commercially prepared fructose, which has been linked to visceral adiposity, insulin resistance, hepatic inflammation, and fibrosis progression. Other hypocaloric diets have not been studied enough to support their routine use in NAFLD treatment, according to the clinical practice update.

For patients with NASH, which is the more severe form of NAFLD and is associated with significant morbidity and mortality caused by complications from cirrhosis, hepatic decompensation, and hepatocellular carcinoma, weight loss also has a big impact: Losing at least 5% of total body weight can decrease hepatic steatosis, losing at least 7% can resolve NASH, and losing at least 10% can lessen or stabilize hepatic fibrosis, according to level 1 evidence cited by the update. Weight loss “can significantly impact all aspects of NAFLD histology including fibrosis, but a goal of 10% total body weight loss should be considered for patients with overweight or obese NAFLD,” the authors wrote. Fat loss also improves liver histology in patients with lean NAFLD (body mass index, 26 kg/m² in non-Asian patients or 24 in Asians), for whom a hypocaloric diet targeting a more modest 3%-5% total body weight loss is recommended.

Because aerobic exercise reduces hepatic fat levels independently of hypocaloric diet, patients with NAFLD should consider a weekly regimen of 150-300 minutes of moderate-intensity exercise or 75-150 minutes of vigorous activity. Resistance training can complement aerobic exercise “but [is] not a replacement,” the authors noted. In addition, patients with NAFLD should restrict alcohol consumption to reduce the risk for liver-related events, and those with advanced hepatic fibrosis should “avoid alcohol entirely.” These recommendations reflect the findings of a large prospective study in which the consumption of even low amounts of alcohol led to worse liver-related outcomes among patients with NAFLD.

Clinicians should screen for and “aggressively” manage common NAFLD comorbidities, including diabetes mellitus, hypertension, and obstructive sleep apnea, according to the clinical practice update. Patients with coexisting metabolic conditions should be risk-stratified for cardiovascular disease and treated based on guidelines from the American College of Cardiology and the American Heart Association.

It is believed that sarcopenia affects patients with NASH cirrhosis because their livers cannot effectively store, metabolize, or mobilize carbohydrates, which leads to a catabolic state in which protein and fat are used as energy sources, according to the update. To avoid exacerbations, these patients may need to optimize their protein intake – a minimum of 1.2-1.5 g/kg of body weight is recommended – from sources of branched-chain amino acids, such as chicken, fish, eggs, nuts, lentils, or soy. Patients with sarcopenic NAFLD also should consume small, frequent meals spaced no more than 4-6 hours apart. When possible, they should consult with a specialized nutritionist. Moderate-intensity exercise may also benefit patients experiencing sarcopenia.

The researchers disclosed ties to Gilead Sciences, Intercept, Bristol Myers Squibb, Novo Nordisk, and several other companies. The review was commissioned and approved by the AGA Institute’s Clinical Practice Updates Committee and the AGA Governing Board.

SOURCE: Younossi ZM et al. Gastroenterology. 2020 Dec 8. doi: 10.1053/j.gastro.2020.11.051.

This article was updated Feb. 10, 2021.

Exercise and a hypocaloric, Mediterranean-style diet remain first-line interventions that can benefit all patients with nonalcoholic fatty liver disease (NAFLD), according to a clinical practice update from the American Gastroenterological Association.

“[W]eight loss is associated with a reduction in liver fat, which provides a potential for reversal of disease progression,” wrote Zobair M. Younossi, MD, MPH, of Inova Fairfax Medical Campus in Falls Church, Va., with his associates. Lifestyle modifications remain “the cornerstone for management” because, even though NAFLD affects approximately 25% of individuals worldwide according to one meta-analytic assessment, interventions such as medications, bariatric endoscopy, and surgery are usually reserved for the subset of patients with severe obesity, comorbid diabetes, or nonalcoholic steatohepatitis (NASH) with at least stage 2 fibrosis, the experts wrote in Gastroenterology.

They note that clinically significant weight loss typically requires a hypocaloric diet of 1,200-1,500 kilocalories/day or a decrease of 500-1,000 kilocalories/day from baseline. A Mediterranean diet of fresh vegetables, fruits, legumes, minimally processed whole grains, fish, olive oil, nuts, and seeds is recommended because its antioxidant, anti-inflammatory effects may slow NAFLD progression. This diet minimizes or eliminates sweets, refined grains, and red and processed meats. Fructose from fruit is not associated with NAFLD, but patients should consume little or no commercially prepared fructose, which has been linked to visceral adiposity, insulin resistance, hepatic inflammation, and fibrosis progression. Other hypocaloric diets have not been studied enough to support their routine use in NAFLD treatment, according to the clinical practice update.

For patients with NASH, which is the more severe form of NAFLD and is associated with significant morbidity and mortality caused by complications from cirrhosis, hepatic decompensation, and hepatocellular carcinoma, weight loss also has a big impact: Losing at least 5% of total body weight can decrease hepatic steatosis, losing at least 7% can resolve NASH, and losing at least 10% can lessen or stabilize hepatic fibrosis, according to level 1 evidence cited by the update. Weight loss “can significantly impact all aspects of NAFLD histology including fibrosis, but a goal of 10% total body weight loss should be considered for patients with overweight or obese NAFLD,” the authors wrote. Fat loss also improves liver histology in patients with lean NAFLD (body mass index, 26 kg/m² in non-Asian patients or 24 in Asians), for whom a hypocaloric diet targeting a more modest 3%-5% total body weight loss is recommended.

Because aerobic exercise reduces hepatic fat levels independently of hypocaloric diet, patients with NAFLD should consider a weekly regimen of 150-300 minutes of moderate-intensity exercise or 75-150 minutes of vigorous activity. Resistance training can complement aerobic exercise “but [is] not a replacement,” the authors noted. In addition, patients with NAFLD should restrict alcohol consumption to reduce the risk for liver-related events, and those with advanced hepatic fibrosis should “avoid alcohol entirely.” These recommendations reflect the findings of a large prospective study in which the consumption of even low amounts of alcohol led to worse liver-related outcomes among patients with NAFLD.

Clinicians should screen for and “aggressively” manage common NAFLD comorbidities, including diabetes mellitus, hypertension, and obstructive sleep apnea, according to the clinical practice update. Patients with coexisting metabolic conditions should be risk-stratified for cardiovascular disease and treated based on guidelines from the American College of Cardiology and the American Heart Association.

It is believed that sarcopenia affects patients with NASH cirrhosis because their livers cannot effectively store, metabolize, or mobilize carbohydrates, which leads to a catabolic state in which protein and fat are used as energy sources, according to the update. To avoid exacerbations, these patients may need to optimize their protein intake – a minimum of 1.2-1.5 g/kg of body weight is recommended – from sources of branched-chain amino acids, such as chicken, fish, eggs, nuts, lentils, or soy. Patients with sarcopenic NAFLD also should consume small, frequent meals spaced no more than 4-6 hours apart. When possible, they should consult with a specialized nutritionist. Moderate-intensity exercise may also benefit patients experiencing sarcopenia.

The researchers disclosed ties to Gilead Sciences, Intercept, Bristol Myers Squibb, Novo Nordisk, and several other companies. The review was commissioned and approved by the AGA Institute’s Clinical Practice Updates Committee and the AGA Governing Board.

SOURCE: Younossi ZM et al. Gastroenterology. 2020 Dec 8. doi: 10.1053/j.gastro.2020.11.051.

This article was updated Feb. 10, 2021.

There is a link between liver injury and a tendency toward excessive clotting in patients with COVID-19, and the organ’s own blood vessels could be responsible, new research shows.

The effect of IL-6 on the liver sinusoidal endothelial cells lining the liver blood vessels creates a prothrombotic environment that includes the release of factor VIII, said investigator Matthew McConnell, MD, from the Yale University, New Haven, Conn.

Dr. McConnell presented the results at the virtual annual meeting of the American Association for the Study of Liver Diseases.

These associations offer insights into why COVID-19 patients with underlying liver disease can experience “devastating complications” related to improper blood vessel function in the organ, he added.

For their study, Dr. McConnell and colleagues analyzed data on ALT and hypercoagulability from 68 adults treated at the Yale–New Haven Hospital. The liver and coagulation tests were administered within 5 days of each other.

The team set the ALT cutoff for liver injury at three times the upper limit of normal. Patients with two or more parameters indicating excessive clotting were considered to have a hypercoagulable profile, which Dr. McConnell called “a signature clinical finding of COVID-19 infection.”

Patients with high levels of ALT also experienced elevations in clotting-related factors, such as fibrinogen levels and the activity of factor VIII and factor II. Furthermore, liver injury was significantly associated with hypercoagulability (P < .05).

Because COVID-19 is linked to the proinflammatory IL-6, the investigators examined how this cytokine and its receptor affect human liver sinusoidal cells. Cells exposed to IL-6 and its receptor pumped out factor VIII at levels that were significantly higher than in unexposed cells (P < .01). Exposed cells also produced significantly more von Willebrand factor (P < .05), another prothrombotic molecule, and showed increased expression of genes that induce the expression of factor VIII.There is utility in the findings beyond COVID-19, said Dr. McConnell. They provide “insights into complications of critical illness, in general, in the liver blood vessels” of patients with underlying liver disease.

Dr. McConnell has no conflicts.

For the latest clinical guidance, education, research, and physician resources about coronavirus, visit the AGA COVID-19 Resource Center at www.gastro.org/COVID.

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

There is a link between liver injury and a tendency toward excessive clotting in patients with COVID-19, and the organ’s own blood vessels could be responsible, new research shows.

The effect of IL-6 on the liver sinusoidal endothelial cells lining the liver blood vessels creates a prothrombotic environment that includes the release of factor VIII, said investigator Matthew McConnell, MD, from the Yale University, New Haven, Conn.

Dr. McConnell presented the results at the virtual annual meeting of the American Association for the Study of Liver Diseases.

These associations offer insights into why COVID-19 patients with underlying liver disease can experience “devastating complications” related to improper blood vessel function in the organ, he added.

For their study, Dr. McConnell and colleagues analyzed data on ALT and hypercoagulability from 68 adults treated at the Yale–New Haven Hospital. The liver and coagulation tests were administered within 5 days of each other.

The team set the ALT cutoff for liver injury at three times the upper limit of normal. Patients with two or more parameters indicating excessive clotting were considered to have a hypercoagulable profile, which Dr. McConnell called “a signature clinical finding of COVID-19 infection.”

Patients with high levels of ALT also experienced elevations in clotting-related factors, such as fibrinogen levels and the activity of factor VIII and factor II. Furthermore, liver injury was significantly associated with hypercoagulability (P < .05).

Because COVID-19 is linked to the proinflammatory IL-6, the investigators examined how this cytokine and its receptor affect human liver sinusoidal cells. Cells exposed to IL-6 and its receptor pumped out factor VIII at levels that were significantly higher than in unexposed cells (P < .01). Exposed cells also produced significantly more von Willebrand factor (P < .05), another prothrombotic molecule, and showed increased expression of genes that induce the expression of factor VIII.There is utility in the findings beyond COVID-19, said Dr. McConnell. They provide “insights into complications of critical illness, in general, in the liver blood vessels” of patients with underlying liver disease.

Dr. McConnell has no conflicts.

For the latest clinical guidance, education, research, and physician resources about coronavirus, visit the AGA COVID-19 Resource Center at www.gastro.org/COVID.

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

There is a link between liver injury and a tendency toward excessive clotting in patients with COVID-19, and the organ’s own blood vessels could be responsible, new research shows.

The effect of IL-6 on the liver sinusoidal endothelial cells lining the liver blood vessels creates a prothrombotic environment that includes the release of factor VIII, said investigator Matthew McConnell, MD, from the Yale University, New Haven, Conn.

Dr. McConnell presented the results at the virtual annual meeting of the American Association for the Study of Liver Diseases.

These associations offer insights into why COVID-19 patients with underlying liver disease can experience “devastating complications” related to improper blood vessel function in the organ, he added.

For their study, Dr. McConnell and colleagues analyzed data on ALT and hypercoagulability from 68 adults treated at the Yale–New Haven Hospital. The liver and coagulation tests were administered within 5 days of each other.

The team set the ALT cutoff for liver injury at three times the upper limit of normal. Patients with two or more parameters indicating excessive clotting were considered to have a hypercoagulable profile, which Dr. McConnell called “a signature clinical finding of COVID-19 infection.”

Patients with high levels of ALT also experienced elevations in clotting-related factors, such as fibrinogen levels and the activity of factor VIII and factor II. Furthermore, liver injury was significantly associated with hypercoagulability (P < .05).

Because COVID-19 is linked to the proinflammatory IL-6, the investigators examined how this cytokine and its receptor affect human liver sinusoidal cells. Cells exposed to IL-6 and its receptor pumped out factor VIII at levels that were significantly higher than in unexposed cells (P < .01). Exposed cells also produced significantly more von Willebrand factor (P < .05), another prothrombotic molecule, and showed increased expression of genes that induce the expression of factor VIII.There is utility in the findings beyond COVID-19, said Dr. McConnell. They provide “insights into complications of critical illness, in general, in the liver blood vessels” of patients with underlying liver disease.

Dr. McConnell has no conflicts.

For the latest clinical guidance, education, research, and physician resources about coronavirus, visit the AGA COVID-19 Resource Center at www.gastro.org/COVID.

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

Endoscopically placed intragastric balloons were safe and effective for managing nonalcoholic fatty liver disease (NAFLD), according to the findings of an open-label, prospective study of 21 patients.

Six months after balloon placement, nonalcoholic fatty liver disease activity scores (NAS) had improved in 18 of 20 biopsied patients (90%), with a median decrease of 3 points (range, 1-4 points). Magnetic resonance elastography showed that fibrosis had improved by 1.5 stages in half of patients (10 of 20). “Other than postprocedural pain (in 5% of patients), no serious adverse events were reported,” Fateh Bazerbachi, MD, of Massachusetts General Hospital in Boston, and associates wrote in Clinical Gastroenterology and Hepatology.

Nonalcoholic fatty liver disease affects approximately 70% of obese adults and half of obese children, meaning that tens of millions of individuals are affected in the United States alone. Lifestyle changes rarely induce more than 10% body weight loss, the threshold for “meaningful improvement in NASH,” and bariatric surgery is not recommended for managing mild or moderate obesity and often is not desired by patients who do qualify, the researchers noted. “Endoscopic bariatric therapies are garnering more attention as potential strategies to address these shortcomings in obesity care and its comorbidities [, but] their influences on the driving and prognostic parameters of NAFLD remain unclear.”

In all, 81% of the study participants were women, with a mean age of 54 years and an average body mass index (BMI) of 44 kg/m². At baseline, more than half had NAS scores of 4 or 5 and histologic fibrosis scores of 2 or 3. Baseline hemoglobin A1c levels averaged 7.4% (range, 5.1%-11.1%) and 29% of patients had impaired glucose tolerance. After receiving endoscopic ultrasound (EUS)–guided core liver biopsies, patients received an endoscopically placed fluid-filled intragastric balloon (Orbera, Apollo Endosurgery, Austin, Tex.). The balloon was removed 6 months later and magnetic resonance elastography and a second core biopsy were performed. One patient did not receive an exit biopsy (because of starting antithrombotic therapy) and thus was excluded from the final analysis.

Of 20 patients, 16 (80%) had at least a two-point improvement in NAS at 6 months, and half had NAS scores of less than 2, indicating remission of NASH. Three of 20 patients (15%) showed improvements in mild fibrosis, 12 showed no change, and 5 showed worsening. Patients lost an average of 11.7% of body weight (standard deviation, 7.7%; P = .01), BMI dropped by a mean of 5.2 (SD, 0.75; P = .01) and A1c fell by an average of 1.3% (SD, 0.5%; P = .02). Waist circumference also decreased significantly (mean, –14.4 cm; SD, –2.2 cm; P = .001), as did hip circumference, fasting glucose, AST, ALT, and AST-to-platelet ratio index. “Percent total body weight loss did not correlate with reductions in NAS or fibrosis,” the researchers noted.

Together, these findings suggest that intragastric balloon placement “may allow a reversal in the natural history of NAFLD and NASH, despite the short duration of the intervention,” they concluded. “The logistics of IGB [intragastric balloon] placement will enable accurate risk stratification of these patients in a safe and reproducible manner, obviating the need for additional investigations, and clarifying the real risk of patients afflicted with NAFLD.”

Apollo Endosurgery provided intragastric balloons, and Medtronic provided SharkCore needles. The senior author and two coinvestigators disclosed ties to Apollo Endosurgery, Medtronic, Metamodix, Boston Scientific, Cairn Diagnostics, Aspire Bariatrics, Johnson and Johnson, AstraZeneca, Genfit, Gila Therapeutics, and several other companies. The other investigators reported having no conflicts of interest.

SOURCE: Bazerbachi F et al. Clin Gastroenterol Hepatol. 2020 Apr 30. doi: 10.1016/j.cgh.2020.04.068.
 

Endoscopically placed intragastric balloons were safe and effective for managing nonalcoholic fatty liver disease (NAFLD), according to the findings of an open-label, prospective study of 21 patients.

Six months after balloon placement, nonalcoholic fatty liver disease activity scores (NAS) had improved in 18 of 20 biopsied patients (90%), with a median decrease of 3 points (range, 1-4 points). Magnetic resonance elastography showed that fibrosis had improved by 1.5 stages in half of patients (10 of 20). “Other than postprocedural pain (in 5% of patients), no serious adverse events were reported,” Fateh Bazerbachi, MD, of Massachusetts General Hospital in Boston, and associates wrote in Clinical Gastroenterology and Hepatology.

Nonalcoholic fatty liver disease affects approximately 70% of obese adults and half of obese children, meaning that tens of millions of individuals are affected in the United States alone. Lifestyle changes rarely induce more than 10% body weight loss, the threshold for “meaningful improvement in NASH,” and bariatric surgery is not recommended for managing mild or moderate obesity and often is not desired by patients who do qualify, the researchers noted. “Endoscopic bariatric therapies are garnering more attention as potential strategies to address these shortcomings in obesity care and its comorbidities [, but] their influences on the driving and prognostic parameters of NAFLD remain unclear.”

In all, 81% of the study participants were women, with a mean age of 54 years and an average body mass index (BMI) of 44 kg/m². At baseline, more than half had NAS scores of 4 or 5 and histologic fibrosis scores of 2 or 3. Baseline hemoglobin A1c levels averaged 7.4% (range, 5.1%-11.1%) and 29% of patients had impaired glucose tolerance. After receiving endoscopic ultrasound (EUS)–guided core liver biopsies, patients received an endoscopically placed fluid-filled intragastric balloon (Orbera, Apollo Endosurgery, Austin, Tex.). The balloon was removed 6 months later and magnetic resonance elastography and a second core biopsy were performed. One patient did not receive an exit biopsy (because of starting antithrombotic therapy) and thus was excluded from the final analysis.

Of 20 patients, 16 (80%) had at least a two-point improvement in NAS at 6 months, and half had NAS scores of less than 2, indicating remission of NASH. Three of 20 patients (15%) showed improvements in mild fibrosis, 12 showed no change, and 5 showed worsening. Patients lost an average of 11.7% of body weight (standard deviation, 7.7%; P = .01), BMI dropped by a mean of 5.2 (SD, 0.75; P = .01) and A1c fell by an average of 1.3% (SD, 0.5%; P = .02). Waist circumference also decreased significantly (mean, –14.4 cm; SD, –2.2 cm; P = .001), as did hip circumference, fasting glucose, AST, ALT, and AST-to-platelet ratio index. “Percent total body weight loss did not correlate with reductions in NAS or fibrosis,” the researchers noted.

Together, these findings suggest that intragastric balloon placement “may allow a reversal in the natural history of NAFLD and NASH, despite the short duration of the intervention,” they concluded. “The logistics of IGB [intragastric balloon] placement will enable accurate risk stratification of these patients in a safe and reproducible manner, obviating the need for additional investigations, and clarifying the real risk of patients afflicted with NAFLD.”

Apollo Endosurgery provided intragastric balloons, and Medtronic provided SharkCore needles. The senior author and two coinvestigators disclosed ties to Apollo Endosurgery, Medtronic, Metamodix, Boston Scientific, Cairn Diagnostics, Aspire Bariatrics, Johnson and Johnson, AstraZeneca, Genfit, Gila Therapeutics, and several other companies. The other investigators reported having no conflicts of interest.

SOURCE: Bazerbachi F et al. Clin Gastroenterol Hepatol. 2020 Apr 30. doi: 10.1016/j.cgh.2020.04.068.
 

Endoscopically placed intragastric balloons were safe and effective for managing nonalcoholic fatty liver disease (NAFLD), according to the findings of an open-label, prospective study of 21 patients.

Six months after balloon placement, nonalcoholic fatty liver disease activity scores (NAS) had improved in 18 of 20 biopsied patients (90%), with a median decrease of 3 points (range, 1-4 points). Magnetic resonance elastography showed that fibrosis had improved by 1.5 stages in half of patients (10 of 20). “Other than postprocedural pain (in 5% of patients), no serious adverse events were reported,” Fateh Bazerbachi, MD, of Massachusetts General Hospital in Boston, and associates wrote in Clinical Gastroenterology and Hepatology.

Nonalcoholic fatty liver disease affects approximately 70% of obese adults and half of obese children, meaning that tens of millions of individuals are affected in the United States alone. Lifestyle changes rarely induce more than 10% body weight loss, the threshold for “meaningful improvement in NASH,” and bariatric surgery is not recommended for managing mild or moderate obesity and often is not desired by patients who do qualify, the researchers noted. “Endoscopic bariatric therapies are garnering more attention as potential strategies to address these shortcomings in obesity care and its comorbidities [, but] their influences on the driving and prognostic parameters of NAFLD remain unclear.”

In all, 81% of the study participants were women, with a mean age of 54 years and an average body mass index (BMI) of 44 kg/m². At baseline, more than half had NAS scores of 4 or 5 and histologic fibrosis scores of 2 or 3. Baseline hemoglobin A1c levels averaged 7.4% (range, 5.1%-11.1%) and 29% of patients had impaired glucose tolerance. After receiving endoscopic ultrasound (EUS)–guided core liver biopsies, patients received an endoscopically placed fluid-filled intragastric balloon (Orbera, Apollo Endosurgery, Austin, Tex.). The balloon was removed 6 months later and magnetic resonance elastography and a second core biopsy were performed. One patient did not receive an exit biopsy (because of starting antithrombotic therapy) and thus was excluded from the final analysis.

Of 20 patients, 16 (80%) had at least a two-point improvement in NAS at 6 months, and half had NAS scores of less than 2, indicating remission of NASH. Three of 20 patients (15%) showed improvements in mild fibrosis, 12 showed no change, and 5 showed worsening. Patients lost an average of 11.7% of body weight (standard deviation, 7.7%; P = .01), BMI dropped by a mean of 5.2 (SD, 0.75; P = .01) and A1c fell by an average of 1.3% (SD, 0.5%; P = .02). Waist circumference also decreased significantly (mean, –14.4 cm; SD, –2.2 cm; P = .001), as did hip circumference, fasting glucose, AST, ALT, and AST-to-platelet ratio index. “Percent total body weight loss did not correlate with reductions in NAS or fibrosis,” the researchers noted.

Together, these findings suggest that intragastric balloon placement “may allow a reversal in the natural history of NAFLD and NASH, despite the short duration of the intervention,” they concluded. “The logistics of IGB [intragastric balloon] placement will enable accurate risk stratification of these patients in a safe and reproducible manner, obviating the need for additional investigations, and clarifying the real risk of patients afflicted with NAFLD.”

Apollo Endosurgery provided intragastric balloons, and Medtronic provided SharkCore needles. The senior author and two coinvestigators disclosed ties to Apollo Endosurgery, Medtronic, Metamodix, Boston Scientific, Cairn Diagnostics, Aspire Bariatrics, Johnson and Johnson, AstraZeneca, Genfit, Gila Therapeutics, and several other companies. The other investigators reported having no conflicts of interest.

SOURCE: Bazerbachi F et al. Clin Gastroenterol Hepatol. 2020 Apr 30. doi: 10.1016/j.cgh.2020.04.068.
 

Liver transplantation using hepatitis C virus (HCV)-seropositive grafts to HCV-seronegative recipients resulted in “excellent short-term outcomes,” according to the results of a prospective, multicenter study reported in the Journal of Hepatology.

A total of 34 HCV– liver transplantation recipients received grafts from HCV+ donors (20 HCV viremic and 14 nonviremic) from January 2018 to September 2019, according to Bashar Aqel, MD, of the Mayo Clinic, Phoenix, Ariz., and colleagues.

Seven of the grafts were obtained from donation after cardiac death (DCD). Six recipients underwent simultaneous liver/kidney (SLK) transplant, and four patients were repeat liver transplants.
 

Sustained viral response

None of the recipients of an HCV nonviremic graft developed HCV viremia. However, all 20 patients who received HCV viremic grafts had HCV viremia confirmed within 3 days after liver transplant. Direct-acting antiviral (DAA) treatment was started at the median time of 27.5 days in these patients.

All 20 patients successfully completed the treatment and achieved a sustained viral response. In addition, the DAA treatment was well tolerated with minimal adverse events, according to the researchers.

However, one patient died, having developed HCV-related acute membranous nephropathy that resulted in end-stage kidney disease. In addition, a recipient of an HCV nonviremic graft died with acute myocardial infarction 610 days post liver transplant, the authors reported.

“This multicenter study demonstrated LT [liver transplantation] using HCV-seropositive grafts to HCV-seronegative recipients resulted in acceptable short-term outcomes even with the use of DCD grafts and expansion into SLK or repeat LT. However, a careful ongoing assessment regarding patient and graft selection, complications, and the timing of treatment is required,” the researchers concluded.

The study was funded in part by the McIver Estate Young Investigator Benefactor Award. The authors reported they had no potential conflicts.

[email protected]

SOURCE: Aqel B et al. J Hepatol. 2020, Nov 11. doi: 10.1016/j.jhep.2020.11.005.

Liver transplantation using hepatitis C virus (HCV)-seropositive grafts to HCV-seronegative recipients resulted in “excellent short-term outcomes,” according to the results of a prospective, multicenter study reported in the Journal of Hepatology.

A total of 34 HCV– liver transplantation recipients received grafts from HCV+ donors (20 HCV viremic and 14 nonviremic) from January 2018 to September 2019, according to Bashar Aqel, MD, of the Mayo Clinic, Phoenix, Ariz., and colleagues.

Seven of the grafts were obtained from donation after cardiac death (DCD). Six recipients underwent simultaneous liver/kidney (SLK) transplant, and four patients were repeat liver transplants.
 

Sustained viral response

None of the recipients of an HCV nonviremic graft developed HCV viremia. However, all 20 patients who received HCV viremic grafts had HCV viremia confirmed within 3 days after liver transplant. Direct-acting antiviral (DAA) treatment was started at the median time of 27.5 days in these patients.

All 20 patients successfully completed the treatment and achieved a sustained viral response. In addition, the DAA treatment was well tolerated with minimal adverse events, according to the researchers.

However, one patient died, having developed HCV-related acute membranous nephropathy that resulted in end-stage kidney disease. In addition, a recipient of an HCV nonviremic graft died with acute myocardial infarction 610 days post liver transplant, the authors reported.

“This multicenter study demonstrated LT [liver transplantation] using HCV-seropositive grafts to HCV-seronegative recipients resulted in acceptable short-term outcomes even with the use of DCD grafts and expansion into SLK or repeat LT. However, a careful ongoing assessment regarding patient and graft selection, complications, and the timing of treatment is required,” the researchers concluded.

The study was funded in part by the McIver Estate Young Investigator Benefactor Award. The authors reported they had no potential conflicts.

[email protected]

SOURCE: Aqel B et al. J Hepatol. 2020, Nov 11. doi: 10.1016/j.jhep.2020.11.005.

Liver transplantation using hepatitis C virus (HCV)-seropositive grafts to HCV-seronegative recipients resulted in “excellent short-term outcomes,” according to the results of a prospective, multicenter study reported in the Journal of Hepatology.

A total of 34 HCV– liver transplantation recipients received grafts from HCV+ donors (20 HCV viremic and 14 nonviremic) from January 2018 to September 2019, according to Bashar Aqel, MD, of the Mayo Clinic, Phoenix, Ariz., and colleagues.

Seven of the grafts were obtained from donation after cardiac death (DCD). Six recipients underwent simultaneous liver/kidney (SLK) transplant, and four patients were repeat liver transplants.
 

Sustained viral response

None of the recipients of an HCV nonviremic graft developed HCV viremia. However, all 20 patients who received HCV viremic grafts had HCV viremia confirmed within 3 days after liver transplant. Direct-acting antiviral (DAA) treatment was started at the median time of 27.5 days in these patients.

All 20 patients successfully completed the treatment and achieved a sustained viral response. In addition, the DAA treatment was well tolerated with minimal adverse events, according to the researchers.

However, one patient died, having developed HCV-related acute membranous nephropathy that resulted in end-stage kidney disease. In addition, a recipient of an HCV nonviremic graft died with acute myocardial infarction 610 days post liver transplant, the authors reported.

“This multicenter study demonstrated LT [liver transplantation] using HCV-seropositive grafts to HCV-seronegative recipients resulted in acceptable short-term outcomes even with the use of DCD grafts and expansion into SLK or repeat LT. However, a careful ongoing assessment regarding patient and graft selection, complications, and the timing of treatment is required,” the researchers concluded.

The study was funded in part by the McIver Estate Young Investigator Benefactor Award. The authors reported they had no potential conflicts.

[email protected]

SOURCE: Aqel B et al. J Hepatol. 2020, Nov 11. doi: 10.1016/j.jhep.2020.11.005.

Men with genetic variants that cause hereditary hemochromatosis have an increased risk of liver cancer and death, according to a large cohort study.

Hereditary hemochromatosis is primarily caused by HFE gene variants. Past research suggested that 81% of patients with hereditary hemochromatosis carry the p.C282Y variant and 5% carry the p.C282Y/p.H63D compound heterozygote genotype.

In a new study, the presence of HFE p.C282Y and p.H63D genotypes was associated with a 10-fold greater risk of developing a hepatic malignancy among men of European ancestry aged 40-70 years. In addition, men with HFE variants were 1.2 times more likely to die of any cause, compared with men who had neither pathogenic variant.

Janice L. Atkins, PhD, of the University of Exeter (England), and colleagues reported these findings in JAMA.

For this study, Dr. Atkins and colleagues used follow-up data from a large genotyped community sample to estimate the incidence of primary hepatic carcinomas and deaths by HFE variant status in participants of European descent.

Data for the two linked coprimary endpoints, incident primary liver carcinoma and all-cause mortality, were derived from hospital and death certificate records. Where available, primary care data was also included.
 

Results: Increased risks for men, not women

The researchers analyzed data from 451,186 men and women, aged 40-70 years, from the UK Biobank. There were 2,890 (0.9%) patients who were p.C282Y homozygous, 1,294 of whom were men.

Among the 1,294 men with HFE p.C282Y homozygosity, 21 were diagnosed with a primary hepatic malignancy. Ten of these patients were not diagnosed with hemochromatosis at baseline.

At a median follow-up of 8.9 years, the risk of primary hepatic malignancy was significantly higher in men with HFE p.C282Y homozygosity, compared with men without HFE pathogenic variants (hazard ratio, 10.5; 95% confidence interval, 6.6-16.7; P < .001).

The risk of all-cause death was significantly higher in men with HFE p.C282Y homozygosity as well (HR, 1.2; 95% CI, 1.0-1.5; P  = .046).

In contrast, female HFE p.C282Y homozygotes had no significant increases in the risk of incident primary hepatic malignancy or all-cause mortality.

Life table projections estimated that 7.2% of men with HFE p.C282Y homozygosity will develop a primary hepatic malignancy by age 75, compared with 0.6% of men without p.C282Y or p.H63D variants.

The researchers acknowledged that a key limitation of this study was the ancestral homogeneity of the cohort. Thus, the findings may not be generalizable to all patient populations.
 

Implications: Earlier diagnosis and treatment

The results of this study underline the importance of early diagnosis and genetic testing, according to the researchers.

“Tragically, men with the hemochromatosis faulty genes have been dying of liver cancer for many years, but this was thought to be rare,” study author David Melzer, MBBCh, PhD, of University of Exeter, said in a press release.

“The large scale of the UK Biobank study allowed us to measure cancer risk accurately. We were shocked to find that more than 7% of men with two faulty genes are likely to develop liver cancer by age 75, particularly considering that the U.K. has the second-highest rate of these faulty genes in the world. Fortunately, most of these cancers could be prevented with early treatment,” Dr. Melzer added.

“Physicians and scientists have long acknowledged that iron overload is an important cofactor fueling the development of many serious diseases, including cancer,” said study author Jeremy Shearman, MBChB, DPhil, of Nuffield Health and South Warwickshire NHS Foundation Trust in the United Kingdom.

“This research is a vital step towards quantifying that risk and should raise awareness of the importance of iron in the minds of both clinicians and patients. Measurement of iron stores and recognition of the genetic risk of iron overload needs to become a routine part of health assessment and monitoring in the U.K.,” Dr. Shearman added.

“The UK Biobank project is a glimpse into the future of medicine where all known genes are tested and then treatable conditions are offered treatment before serious complications develop,” said study author Paul Adams, MD, of the University of Western Ontario in London.

This research was funded by the UK Medical Research Council. Dr. Melzer disclosed financial affiliations with the UK Medical Research Council during the conduct of the study.

SOURCE: Atkins JL et al. JAMA. 2020 Nov 24. doi: 10.1001/jama.2020.21566.

Men with genetic variants that cause hereditary hemochromatosis have an increased risk of liver cancer and death, according to a large cohort study.

Hereditary hemochromatosis is primarily caused by HFE gene variants. Past research suggested that 81% of patients with hereditary hemochromatosis carry the p.C282Y variant and 5% carry the p.C282Y/p.H63D compound heterozygote genotype.

In a new study, the presence of HFE p.C282Y and p.H63D genotypes was associated with a 10-fold greater risk of developing a hepatic malignancy among men of European ancestry aged 40-70 years. In addition, men with HFE variants were 1.2 times more likely to die of any cause, compared with men who had neither pathogenic variant.

Janice L. Atkins, PhD, of the University of Exeter (England), and colleagues reported these findings in JAMA.

For this study, Dr. Atkins and colleagues used follow-up data from a large genotyped community sample to estimate the incidence of primary hepatic carcinomas and deaths by HFE variant status in participants of European descent.

Data for the two linked coprimary endpoints, incident primary liver carcinoma and all-cause mortality, were derived from hospital and death certificate records. Where available, primary care data was also included.
 

Results: Increased risks for men, not women

The researchers analyzed data from 451,186 men and women, aged 40-70 years, from the UK Biobank. There were 2,890 (0.9%) patients who were p.C282Y homozygous, 1,294 of whom were men.

Among the 1,294 men with HFE p.C282Y homozygosity, 21 were diagnosed with a primary hepatic malignancy. Ten of these patients were not diagnosed with hemochromatosis at baseline.

At a median follow-up of 8.9 years, the risk of primary hepatic malignancy was significantly higher in men with HFE p.C282Y homozygosity, compared with men without HFE pathogenic variants (hazard ratio, 10.5; 95% confidence interval, 6.6-16.7; P < .001).

The risk of all-cause death was significantly higher in men with HFE p.C282Y homozygosity as well (HR, 1.2; 95% CI, 1.0-1.5; P  = .046).

In contrast, female HFE p.C282Y homozygotes had no significant increases in the risk of incident primary hepatic malignancy or all-cause mortality.

Life table projections estimated that 7.2% of men with HFE p.C282Y homozygosity will develop a primary hepatic malignancy by age 75, compared with 0.6% of men without p.C282Y or p.H63D variants.

The researchers acknowledged that a key limitation of this study was the ancestral homogeneity of the cohort. Thus, the findings may not be generalizable to all patient populations.
 

Implications: Earlier diagnosis and treatment

The results of this study underline the importance of early diagnosis and genetic testing, according to the researchers.

“Tragically, men with the hemochromatosis faulty genes have been dying of liver cancer for many years, but this was thought to be rare,” study author David Melzer, MBBCh, PhD, of University of Exeter, said in a press release.

“The large scale of the UK Biobank study allowed us to measure cancer risk accurately. We were shocked to find that more than 7% of men with two faulty genes are likely to develop liver cancer by age 75, particularly considering that the U.K. has the second-highest rate of these faulty genes in the world. Fortunately, most of these cancers could be prevented with early treatment,” Dr. Melzer added.

“Physicians and scientists have long acknowledged that iron overload is an important cofactor fueling the development of many serious diseases, including cancer,” said study author Jeremy Shearman, MBChB, DPhil, of Nuffield Health and South Warwickshire NHS Foundation Trust in the United Kingdom.

“This research is a vital step towards quantifying that risk and should raise awareness of the importance of iron in the minds of both clinicians and patients. Measurement of iron stores and recognition of the genetic risk of iron overload needs to become a routine part of health assessment and monitoring in the U.K.,” Dr. Shearman added.

“The UK Biobank project is a glimpse into the future of medicine where all known genes are tested and then treatable conditions are offered treatment before serious complications develop,” said study author Paul Adams, MD, of the University of Western Ontario in London.

This research was funded by the UK Medical Research Council. Dr. Melzer disclosed financial affiliations with the UK Medical Research Council during the conduct of the study.

SOURCE: Atkins JL et al. JAMA. 2020 Nov 24. doi: 10.1001/jama.2020.21566.

Men with genetic variants that cause hereditary hemochromatosis have an increased risk of liver cancer and death, according to a large cohort study.

Hereditary hemochromatosis is primarily caused by HFE gene variants. Past research suggested that 81% of patients with hereditary hemochromatosis carry the p.C282Y variant and 5% carry the p.C282Y/p.H63D compound heterozygote genotype.

In a new study, the presence of HFE p.C282Y and p.H63D genotypes was associated with a 10-fold greater risk of developing a hepatic malignancy among men of European ancestry aged 40-70 years. In addition, men with HFE variants were 1.2 times more likely to die of any cause, compared with men who had neither pathogenic variant.

Janice L. Atkins, PhD, of the University of Exeter (England), and colleagues reported these findings in JAMA.

For this study, Dr. Atkins and colleagues used follow-up data from a large genotyped community sample to estimate the incidence of primary hepatic carcinomas and deaths by HFE variant status in participants of European descent.

Data for the two linked coprimary endpoints, incident primary liver carcinoma and all-cause mortality, were derived from hospital and death certificate records. Where available, primary care data was also included.
 

Results: Increased risks for men, not women

The researchers analyzed data from 451,186 men and women, aged 40-70 years, from the UK Biobank. There were 2,890 (0.9%) patients who were p.C282Y homozygous, 1,294 of whom were men.

Among the 1,294 men with HFE p.C282Y homozygosity, 21 were diagnosed with a primary hepatic malignancy. Ten of these patients were not diagnosed with hemochromatosis at baseline.

At a median follow-up of 8.9 years, the risk of primary hepatic malignancy was significantly higher in men with HFE p.C282Y homozygosity, compared with men without HFE pathogenic variants (hazard ratio, 10.5; 95% confidence interval, 6.6-16.7; P < .001).

The risk of all-cause death was significantly higher in men with HFE p.C282Y homozygosity as well (HR, 1.2; 95% CI, 1.0-1.5; P  = .046).

In contrast, female HFE p.C282Y homozygotes had no significant increases in the risk of incident primary hepatic malignancy or all-cause mortality.

Life table projections estimated that 7.2% of men with HFE p.C282Y homozygosity will develop a primary hepatic malignancy by age 75, compared with 0.6% of men without p.C282Y or p.H63D variants.

The researchers acknowledged that a key limitation of this study was the ancestral homogeneity of the cohort. Thus, the findings may not be generalizable to all patient populations.
 

Implications: Earlier diagnosis and treatment

The results of this study underline the importance of early diagnosis and genetic testing, according to the researchers.

“Tragically, men with the hemochromatosis faulty genes have been dying of liver cancer for many years, but this was thought to be rare,” study author David Melzer, MBBCh, PhD, of University of Exeter, said in a press release.

“The large scale of the UK Biobank study allowed us to measure cancer risk accurately. We were shocked to find that more than 7% of men with two faulty genes are likely to develop liver cancer by age 75, particularly considering that the U.K. has the second-highest rate of these faulty genes in the world. Fortunately, most of these cancers could be prevented with early treatment,” Dr. Melzer added.

“Physicians and scientists have long acknowledged that iron overload is an important cofactor fueling the development of many serious diseases, including cancer,” said study author Jeremy Shearman, MBChB, DPhil, of Nuffield Health and South Warwickshire NHS Foundation Trust in the United Kingdom.

“This research is a vital step towards quantifying that risk and should raise awareness of the importance of iron in the minds of both clinicians and patients. Measurement of iron stores and recognition of the genetic risk of iron overload needs to become a routine part of health assessment and monitoring in the U.K.,” Dr. Shearman added.

“The UK Biobank project is a glimpse into the future of medicine where all known genes are tested and then treatable conditions are offered treatment before serious complications develop,” said study author Paul Adams, MD, of the University of Western Ontario in London.

This research was funded by the UK Medical Research Council. Dr. Melzer disclosed financial affiliations with the UK Medical Research Council during the conduct of the study.

SOURCE: Atkins JL et al. JAMA. 2020 Nov 24. doi: 10.1001/jama.2020.21566.