From the AGA Journals

All adult patients with primary sclerosing cholangitis should be screened at least annually for cholangiocarcinoma and gallbladder cancer, particularly in the first year after their diagnosis, according to a clinical practice update published in Clinical Gastroenterology and Hepatology.

Individuals with primary sclerosing cholangitis have a 400-fold higher risk of cholangiocarcinoma, compared with the general population, and around one-third of cancers are detected within 1 year of the cholangitis diagnosis, Christopher L. Bowlus, MD, of the University of California, Davis, and coauthors wrote.

The clinical practice update from the American Gastroenterological Association was in response to the observation that, while there is significant evidence for an increasing incidence of cirrhosis, hepatic decompensation, hepatocellular carcinoma, and liver transplant listing among patients with primary sclerosing cholangitis, there is a lack of good evidence to guide cholangiocarcinoma surveillance in these patients.

“The low prevalence and long duration of PSC [primary sclerosing cholangitis] present substantial barriers to better understanding risk stratification, developing biomarkers, and measuring the impact surveillance has on clinical outcomes,” they wrote.

The first recommendation was that surveillance for cholangiocarcinoma and gallbladder cancer should be considered in all adult patients with primary sclerosing cholangitis, regardless of their disease stage. The authors especially emphasized the importance of surveillance in the first year after a diagnosis of primary sclerosing cholangitis, in patients who also have ulcerative colitis, and in those diagnosed at an older age.

They cited one study that found regular surveillance of patients with primary sclerosing cholangitis was associated with significantly higher 5-year survival rates, compared with those no regular screening (68% vs. 20%; P less than .0061).

In terms of surveillance modalities, the update suggested 6- to 12-monthly imaging of the biliary tree with ultrasound computed tomography, computed tomography, or magnetic resonance imaging – with or without serum carbohydrate antigen 19-9. However the authors wrote that MRI was often preferred to CT because of its superior sensitivity.

They advised against endoscopic retrograde cholangiopancreatography with brush cytology for routine surveillance because of procedural risks. On the other hand, they suggested this procedure, with or without fluorescence in situ hybridization analysis and/or cholangioscopy, could be used for investigation.

“In addition to ERCP [endoscopic retrograde cholangiopancreatography] with brushings, endoscopic ultrasound, intraductal ultrasonography, and cholangioscopy may be used to direct biopsy sampling,” they wrote. Symptoms such as increasing cholestatic biochemistry values, jaundice, fever, right upper quadrant pain, or pruritus should trigger evaluation for cholangiocarcinoma.

However the authors advised “great caution” with the use of fine-needle aspiration of perihilar biliary strictures in liver transplant candidates because of the risk of tumor seeding if the lesion turned out to be cholangiocarcinoma.

On the question of cholangiocarcinoma surveillance in pediatric patients and those with small-duct primary sclerosing cholangitis, the authors wrote that cholangiocarcinoma was so rare in these patients that routine cholangiocarcinoma surveillance was not required.

The clinical update also looked at the prevalence and risk factors for gallbladder cancer, which affects around 2% of individuals with primary sclerosing cholangitis. Two studies found gallbladder polyps in 10%-17% of patients, but the authors noted that “the optimal modality for diagnosis of gallbladder polyps in PSC remains unknown”.

“Because of the high risk of malignancy in gallbladder mass lesions and a 5-year survival rate of 5% to 10% for gallbladder cancer, patients should undergo annual US [ultrasound] screening,” they wrote.

They said the question of whether to perform a cholecystectomy in patients with gallbladder polyps should be guided by the size and growth of the polyps because there is an increased risk of gallbladder cancer in polyps larger than 8 mm and by the clinical status of the patient.

Finally, the update examined the issue of hepatocellular carcinoma in patients with primary sclerosing cholangitis, which – while rare – may increase with the presence of cirrhosis.

The authors advised that patients with primary sclerosing cholangitis and cirrhosis should undergo surveillance for hepatocellular carcinoma every 6 months with ultrasound, CT, or MRI.

“We anticipate that with the development of large patient cohorts, advances in uncovering genetic and other risk factors for cholangiocarcinoma, and development of effective treatments for PSC, further refinement of this practice update will be required.”

Two authors declared consultancies, grants and research contracts with the pharmaceutical sector. No other conflicts of interest were declared.

SOURCE: Bowlus C et al. Clin Gastroenterol Hepatol. 2019 Jul 12. doi 10.1016/j.cgh.2019.07.011.

All adult patients with primary sclerosing cholangitis should be screened at least annually for cholangiocarcinoma and gallbladder cancer, particularly in the first year after their diagnosis, according to a clinical practice update published in Clinical Gastroenterology and Hepatology.

Individuals with primary sclerosing cholangitis have a 400-fold higher risk of cholangiocarcinoma, compared with the general population, and around one-third of cancers are detected within 1 year of the cholangitis diagnosis, Christopher L. Bowlus, MD, of the University of California, Davis, and coauthors wrote.

The clinical practice update from the American Gastroenterological Association was in response to the observation that, while there is significant evidence for an increasing incidence of cirrhosis, hepatic decompensation, hepatocellular carcinoma, and liver transplant listing among patients with primary sclerosing cholangitis, there is a lack of good evidence to guide cholangiocarcinoma surveillance in these patients.

“The low prevalence and long duration of PSC [primary sclerosing cholangitis] present substantial barriers to better understanding risk stratification, developing biomarkers, and measuring the impact surveillance has on clinical outcomes,” they wrote.

The first recommendation was that surveillance for cholangiocarcinoma and gallbladder cancer should be considered in all adult patients with primary sclerosing cholangitis, regardless of their disease stage. The authors especially emphasized the importance of surveillance in the first year after a diagnosis of primary sclerosing cholangitis, in patients who also have ulcerative colitis, and in those diagnosed at an older age.

They cited one study that found regular surveillance of patients with primary sclerosing cholangitis was associated with significantly higher 5-year survival rates, compared with those no regular screening (68% vs. 20%; P less than .0061).

In terms of surveillance modalities, the update suggested 6- to 12-monthly imaging of the biliary tree with ultrasound computed tomography, computed tomography, or magnetic resonance imaging – with or without serum carbohydrate antigen 19-9. However the authors wrote that MRI was often preferred to CT because of its superior sensitivity.

They advised against endoscopic retrograde cholangiopancreatography with brush cytology for routine surveillance because of procedural risks. On the other hand, they suggested this procedure, with or without fluorescence in situ hybridization analysis and/or cholangioscopy, could be used for investigation.

“In addition to ERCP [endoscopic retrograde cholangiopancreatography] with brushings, endoscopic ultrasound, intraductal ultrasonography, and cholangioscopy may be used to direct biopsy sampling,” they wrote. Symptoms such as increasing cholestatic biochemistry values, jaundice, fever, right upper quadrant pain, or pruritus should trigger evaluation for cholangiocarcinoma.

However the authors advised “great caution” with the use of fine-needle aspiration of perihilar biliary strictures in liver transplant candidates because of the risk of tumor seeding if the lesion turned out to be cholangiocarcinoma.

On the question of cholangiocarcinoma surveillance in pediatric patients and those with small-duct primary sclerosing cholangitis, the authors wrote that cholangiocarcinoma was so rare in these patients that routine cholangiocarcinoma surveillance was not required.

The clinical update also looked at the prevalence and risk factors for gallbladder cancer, which affects around 2% of individuals with primary sclerosing cholangitis. Two studies found gallbladder polyps in 10%-17% of patients, but the authors noted that “the optimal modality for diagnosis of gallbladder polyps in PSC remains unknown”.

“Because of the high risk of malignancy in gallbladder mass lesions and a 5-year survival rate of 5% to 10% for gallbladder cancer, patients should undergo annual US [ultrasound] screening,” they wrote.

They said the question of whether to perform a cholecystectomy in patients with gallbladder polyps should be guided by the size and growth of the polyps because there is an increased risk of gallbladder cancer in polyps larger than 8 mm and by the clinical status of the patient.

Finally, the update examined the issue of hepatocellular carcinoma in patients with primary sclerosing cholangitis, which – while rare – may increase with the presence of cirrhosis.

The authors advised that patients with primary sclerosing cholangitis and cirrhosis should undergo surveillance for hepatocellular carcinoma every 6 months with ultrasound, CT, or MRI.

“We anticipate that with the development of large patient cohorts, advances in uncovering genetic and other risk factors for cholangiocarcinoma, and development of effective treatments for PSC, further refinement of this practice update will be required.”

Two authors declared consultancies, grants and research contracts with the pharmaceutical sector. No other conflicts of interest were declared.

SOURCE: Bowlus C et al. Clin Gastroenterol Hepatol. 2019 Jul 12. doi 10.1016/j.cgh.2019.07.011.

All adult patients with primary sclerosing cholangitis should be screened at least annually for cholangiocarcinoma and gallbladder cancer, particularly in the first year after their diagnosis, according to a clinical practice update published in Clinical Gastroenterology and Hepatology.

Individuals with primary sclerosing cholangitis have a 400-fold higher risk of cholangiocarcinoma, compared with the general population, and around one-third of cancers are detected within 1 year of the cholangitis diagnosis, Christopher L. Bowlus, MD, of the University of California, Davis, and coauthors wrote.

The clinical practice update from the American Gastroenterological Association was in response to the observation that, while there is significant evidence for an increasing incidence of cirrhosis, hepatic decompensation, hepatocellular carcinoma, and liver transplant listing among patients with primary sclerosing cholangitis, there is a lack of good evidence to guide cholangiocarcinoma surveillance in these patients.

“The low prevalence and long duration of PSC [primary sclerosing cholangitis] present substantial barriers to better understanding risk stratification, developing biomarkers, and measuring the impact surveillance has on clinical outcomes,” they wrote.

The first recommendation was that surveillance for cholangiocarcinoma and gallbladder cancer should be considered in all adult patients with primary sclerosing cholangitis, regardless of their disease stage. The authors especially emphasized the importance of surveillance in the first year after a diagnosis of primary sclerosing cholangitis, in patients who also have ulcerative colitis, and in those diagnosed at an older age.

They cited one study that found regular surveillance of patients with primary sclerosing cholangitis was associated with significantly higher 5-year survival rates, compared with those no regular screening (68% vs. 20%; P less than .0061).

In terms of surveillance modalities, the update suggested 6- to 12-monthly imaging of the biliary tree with ultrasound computed tomography, computed tomography, or magnetic resonance imaging – with or without serum carbohydrate antigen 19-9. However the authors wrote that MRI was often preferred to CT because of its superior sensitivity.

They advised against endoscopic retrograde cholangiopancreatography with brush cytology for routine surveillance because of procedural risks. On the other hand, they suggested this procedure, with or without fluorescence in situ hybridization analysis and/or cholangioscopy, could be used for investigation.

“In addition to ERCP [endoscopic retrograde cholangiopancreatography] with brushings, endoscopic ultrasound, intraductal ultrasonography, and cholangioscopy may be used to direct biopsy sampling,” they wrote. Symptoms such as increasing cholestatic biochemistry values, jaundice, fever, right upper quadrant pain, or pruritus should trigger evaluation for cholangiocarcinoma.

However the authors advised “great caution” with the use of fine-needle aspiration of perihilar biliary strictures in liver transplant candidates because of the risk of tumor seeding if the lesion turned out to be cholangiocarcinoma.

On the question of cholangiocarcinoma surveillance in pediatric patients and those with small-duct primary sclerosing cholangitis, the authors wrote that cholangiocarcinoma was so rare in these patients that routine cholangiocarcinoma surveillance was not required.

The clinical update also looked at the prevalence and risk factors for gallbladder cancer, which affects around 2% of individuals with primary sclerosing cholangitis. Two studies found gallbladder polyps in 10%-17% of patients, but the authors noted that “the optimal modality for diagnosis of gallbladder polyps in PSC remains unknown”.

“Because of the high risk of malignancy in gallbladder mass lesions and a 5-year survival rate of 5% to 10% for gallbladder cancer, patients should undergo annual US [ultrasound] screening,” they wrote.

They said the question of whether to perform a cholecystectomy in patients with gallbladder polyps should be guided by the size and growth of the polyps because there is an increased risk of gallbladder cancer in polyps larger than 8 mm and by the clinical status of the patient.

Finally, the update examined the issue of hepatocellular carcinoma in patients with primary sclerosing cholangitis, which – while rare – may increase with the presence of cirrhosis.

The authors advised that patients with primary sclerosing cholangitis and cirrhosis should undergo surveillance for hepatocellular carcinoma every 6 months with ultrasound, CT, or MRI.

“We anticipate that with the development of large patient cohorts, advances in uncovering genetic and other risk factors for cholangiocarcinoma, and development of effective treatments for PSC, further refinement of this practice update will be required.”

Two authors declared consultancies, grants and research contracts with the pharmaceutical sector. No other conflicts of interest were declared.

SOURCE: Bowlus C et al. Clin Gastroenterol Hepatol. 2019 Jul 12. doi 10.1016/j.cgh.2019.07.011.

Molecular pathways linked with CD44 variant 9 (CD44v9), a cell surface glycoprotein tied to aggressive gastric cancer after Helicobacter pylori infection, may open doors to stop cancer before it starts, according to two recent studies.

Findings from the first study suggest that persistent inflammation after eradication therapy may continue to drive cancer risk after infection, while the second study revealed a potential therapeutic target related to preneoplastic changes.

The first study, conducted by lead author Hitoshi Tsugawa, PhD, of Keio University, Tokyo, and colleagues, aimed to determine the origin of CD44v9-positive cancer stem-like cells.

“These cells strongly contribute to the development and recurrence of gastric cancer,” the investigators wrote. Their report is in Cellular and Molecular Gastroenterology and Hepatology. “However, the origin of CD44v9-positive cells is uncertain.”

The association between H. pylori infection and gastric cancer has been documented, along with a high risk of cancer when gastric epithelial cells overexpress capping actin protein of muscle Z-line alpha subunit 1 (CAPZA1), the researchers noted. Although it has also been shown that CAPZA1 overexpression leads to intracellular accumulations of the H. pylori–derived oncoprotein cytotoxin-associated gene A (CagA), just how these phenomena were connected remained unknown.

Through in vitro analyses of human cells, and in vitro and in vivo experiments involving Mongolian gerbils, the investigators uncovered a chain of events between H. pylori infection and CD44v9 expression. First, the investigators showed that expression levels of CD44v9 and CAPZA1 were directly correlated in five human cases of gastric cancer. Next, several experiments revealed that H. pylori–related oxidative stress drives overexpression of CAPZA1, which, in combination with high levels of beta-catenin, ESRP1, and CagA, promotes expression of CD44v9.

Most directly relevant to future therapies, the investigators compared levels of CAPZA1 between five active cases of H. pylori infection versus five cases successfully treated with eradication therapy. After eradication therapy, CAPZA1 overexpression decreased, but not to a significant degree.

“Our findings suggest that CAPZA1-overexpressing cells remaining in the gastric mucosa after eradication therapy increase the risk of metachronous gastric cancer and that reduction of CAPZA1 expression by amelioration of chronic inflammation after eradication therapy is important to prevent the development of gastric cancer,” the investigators concluded.

The second study, by lead author Anne R. Meyer, a graduate student at Vanderbilt University, Nashville, Tenn., and colleagues, evaluated how zymogenic chief cells are reprogrammed into spasmolytic polypeptide-expressing metaplasia (SPEM), a precursor to dysplasia and gastric cancer.

It had been previously shown that reprogramming to SPEM is promoted and maintained by epithelial cell damage, such as that caused by H. pylori infection, but underlying processes remained unclear, until recent studies suggested a link between SPEM transition and upregulation of CD44v9. Knowing that CD44v9 stabilizes the cystine/glutamate antiporter xCT, the investigators homed in on xCT for a closer look, questioning what role it had in chief cell reprogramming. Again, oxidative stress was identified as the inciting pathophysiologic driver.

“The oxidative stress response, including upregulation of nutrient transporters, plays an important role in many biological processes and the pathogenesis of a variety of diseases,” the investigators wrote in their report, published in Cellular and Molecular Gastroenterology and Hepatology. “Perturbations to the CD44v9-xCT system often result in redox imbalance.”

Using a combination of mouse and human cell lines, and a mouse model, the investigators demonstrated that xCT was upregulated during the initial stages of chief cell programming. Blocking xCT with sulfasalazine after acute gastric injury limited SPEM transition by more than 80%, an effect that was further supported by xCT siRNA knockdown and observations in xCT knockout mice. Reduction in chief cell reprogramming was not observed in the presence of sulfasalazine metabolites, suggesting that the anti-inflammatory properties of sulfasalazine were not responsible for downregulation of reprogramming.

“Targeting xCT may prove an effective tool for arresting metaplasia development in the stomach as well as mucous metaplasia in other epithelial tissues for the analysis of cellular plasticity and oxidative stress response,” the investigators concluded.

The study by Tsugawa and colleagues was funded by Grants-in-Aid for Scientific Research; the Yakult Bio-Science Foundation; the Ministry of Education, Culture, Sports, Science and Technology (MEXT)-supported program for the Strategic Research Foundation at Private Universities; and Keio Gijuku Academic Development Funds. Dr. Suzuki disclosed relationships with Daiichi-Sankyo Co, EA Pharma Co, Otsuka Pharmaceutical Co Ltd, and others. The study by Meyer and colleagues was funded by the National Institutes of Health, the American Association of Cancer Research, the Department of Defense, and others, with no relevant conflicts of interest.

SOURCES: Meyer et al. CMGH. 2019 May 6. doi: 10.1016/j.jcmgh.2019.04.015; Tsugawa et al. CMGH. 2019 May 27. doi: 10.1016/j.jcmgh.2019.05.008.

Molecular pathways linked with CD44 variant 9 (CD44v9), a cell surface glycoprotein tied to aggressive gastric cancer after Helicobacter pylori infection, may open doors to stop cancer before it starts, according to two recent studies.

Findings from the first study suggest that persistent inflammation after eradication therapy may continue to drive cancer risk after infection, while the second study revealed a potential therapeutic target related to preneoplastic changes.

The first study, conducted by lead author Hitoshi Tsugawa, PhD, of Keio University, Tokyo, and colleagues, aimed to determine the origin of CD44v9-positive cancer stem-like cells.

“These cells strongly contribute to the development and recurrence of gastric cancer,” the investigators wrote. Their report is in Cellular and Molecular Gastroenterology and Hepatology. “However, the origin of CD44v9-positive cells is uncertain.”

The association between H. pylori infection and gastric cancer has been documented, along with a high risk of cancer when gastric epithelial cells overexpress capping actin protein of muscle Z-line alpha subunit 1 (CAPZA1), the researchers noted. Although it has also been shown that CAPZA1 overexpression leads to intracellular accumulations of the H. pylori–derived oncoprotein cytotoxin-associated gene A (CagA), just how these phenomena were connected remained unknown.

Through in vitro analyses of human cells, and in vitro and in vivo experiments involving Mongolian gerbils, the investigators uncovered a chain of events between H. pylori infection and CD44v9 expression. First, the investigators showed that expression levels of CD44v9 and CAPZA1 were directly correlated in five human cases of gastric cancer. Next, several experiments revealed that H. pylori–related oxidative stress drives overexpression of CAPZA1, which, in combination with high levels of beta-catenin, ESRP1, and CagA, promotes expression of CD44v9.

Most directly relevant to future therapies, the investigators compared levels of CAPZA1 between five active cases of H. pylori infection versus five cases successfully treated with eradication therapy. After eradication therapy, CAPZA1 overexpression decreased, but not to a significant degree.

“Our findings suggest that CAPZA1-overexpressing cells remaining in the gastric mucosa after eradication therapy increase the risk of metachronous gastric cancer and that reduction of CAPZA1 expression by amelioration of chronic inflammation after eradication therapy is important to prevent the development of gastric cancer,” the investigators concluded.

The second study, by lead author Anne R. Meyer, a graduate student at Vanderbilt University, Nashville, Tenn., and colleagues, evaluated how zymogenic chief cells are reprogrammed into spasmolytic polypeptide-expressing metaplasia (SPEM), a precursor to dysplasia and gastric cancer.

It had been previously shown that reprogramming to SPEM is promoted and maintained by epithelial cell damage, such as that caused by H. pylori infection, but underlying processes remained unclear, until recent studies suggested a link between SPEM transition and upregulation of CD44v9. Knowing that CD44v9 stabilizes the cystine/glutamate antiporter xCT, the investigators homed in on xCT for a closer look, questioning what role it had in chief cell reprogramming. Again, oxidative stress was identified as the inciting pathophysiologic driver.

“The oxidative stress response, including upregulation of nutrient transporters, plays an important role in many biological processes and the pathogenesis of a variety of diseases,” the investigators wrote in their report, published in Cellular and Molecular Gastroenterology and Hepatology. “Perturbations to the CD44v9-xCT system often result in redox imbalance.”

Using a combination of mouse and human cell lines, and a mouse model, the investigators demonstrated that xCT was upregulated during the initial stages of chief cell programming. Blocking xCT with sulfasalazine after acute gastric injury limited SPEM transition by more than 80%, an effect that was further supported by xCT siRNA knockdown and observations in xCT knockout mice. Reduction in chief cell reprogramming was not observed in the presence of sulfasalazine metabolites, suggesting that the anti-inflammatory properties of sulfasalazine were not responsible for downregulation of reprogramming.

“Targeting xCT may prove an effective tool for arresting metaplasia development in the stomach as well as mucous metaplasia in other epithelial tissues for the analysis of cellular plasticity and oxidative stress response,” the investigators concluded.

The study by Tsugawa and colleagues was funded by Grants-in-Aid for Scientific Research; the Yakult Bio-Science Foundation; the Ministry of Education, Culture, Sports, Science and Technology (MEXT)-supported program for the Strategic Research Foundation at Private Universities; and Keio Gijuku Academic Development Funds. Dr. Suzuki disclosed relationships with Daiichi-Sankyo Co, EA Pharma Co, Otsuka Pharmaceutical Co Ltd, and others. The study by Meyer and colleagues was funded by the National Institutes of Health, the American Association of Cancer Research, the Department of Defense, and others, with no relevant conflicts of interest.

SOURCES: Meyer et al. CMGH. 2019 May 6. doi: 10.1016/j.jcmgh.2019.04.015; Tsugawa et al. CMGH. 2019 May 27. doi: 10.1016/j.jcmgh.2019.05.008.

Molecular pathways linked with CD44 variant 9 (CD44v9), a cell surface glycoprotein tied to aggressive gastric cancer after Helicobacter pylori infection, may open doors to stop cancer before it starts, according to two recent studies.

Findings from the first study suggest that persistent inflammation after eradication therapy may continue to drive cancer risk after infection, while the second study revealed a potential therapeutic target related to preneoplastic changes.

The first study, conducted by lead author Hitoshi Tsugawa, PhD, of Keio University, Tokyo, and colleagues, aimed to determine the origin of CD44v9-positive cancer stem-like cells.

“These cells strongly contribute to the development and recurrence of gastric cancer,” the investigators wrote. Their report is in Cellular and Molecular Gastroenterology and Hepatology. “However, the origin of CD44v9-positive cells is uncertain.”

The association between H. pylori infection and gastric cancer has been documented, along with a high risk of cancer when gastric epithelial cells overexpress capping actin protein of muscle Z-line alpha subunit 1 (CAPZA1), the researchers noted. Although it has also been shown that CAPZA1 overexpression leads to intracellular accumulations of the H. pylori–derived oncoprotein cytotoxin-associated gene A (CagA), just how these phenomena were connected remained unknown.

Through in vitro analyses of human cells, and in vitro and in vivo experiments involving Mongolian gerbils, the investigators uncovered a chain of events between H. pylori infection and CD44v9 expression. First, the investigators showed that expression levels of CD44v9 and CAPZA1 were directly correlated in five human cases of gastric cancer. Next, several experiments revealed that H. pylori–related oxidative stress drives overexpression of CAPZA1, which, in combination with high levels of beta-catenin, ESRP1, and CagA, promotes expression of CD44v9.

Most directly relevant to future therapies, the investigators compared levels of CAPZA1 between five active cases of H. pylori infection versus five cases successfully treated with eradication therapy. After eradication therapy, CAPZA1 overexpression decreased, but not to a significant degree.

“Our findings suggest that CAPZA1-overexpressing cells remaining in the gastric mucosa after eradication therapy increase the risk of metachronous gastric cancer and that reduction of CAPZA1 expression by amelioration of chronic inflammation after eradication therapy is important to prevent the development of gastric cancer,” the investigators concluded.

The second study, by lead author Anne R. Meyer, a graduate student at Vanderbilt University, Nashville, Tenn., and colleagues, evaluated how zymogenic chief cells are reprogrammed into spasmolytic polypeptide-expressing metaplasia (SPEM), a precursor to dysplasia and gastric cancer.

It had been previously shown that reprogramming to SPEM is promoted and maintained by epithelial cell damage, such as that caused by H. pylori infection, but underlying processes remained unclear, until recent studies suggested a link between SPEM transition and upregulation of CD44v9. Knowing that CD44v9 stabilizes the cystine/glutamate antiporter xCT, the investigators homed in on xCT for a closer look, questioning what role it had in chief cell reprogramming. Again, oxidative stress was identified as the inciting pathophysiologic driver.

“The oxidative stress response, including upregulation of nutrient transporters, plays an important role in many biological processes and the pathogenesis of a variety of diseases,” the investigators wrote in their report, published in Cellular and Molecular Gastroenterology and Hepatology. “Perturbations to the CD44v9-xCT system often result in redox imbalance.”

Using a combination of mouse and human cell lines, and a mouse model, the investigators demonstrated that xCT was upregulated during the initial stages of chief cell programming. Blocking xCT with sulfasalazine after acute gastric injury limited SPEM transition by more than 80%, an effect that was further supported by xCT siRNA knockdown and observations in xCT knockout mice. Reduction in chief cell reprogramming was not observed in the presence of sulfasalazine metabolites, suggesting that the anti-inflammatory properties of sulfasalazine were not responsible for downregulation of reprogramming.

“Targeting xCT may prove an effective tool for arresting metaplasia development in the stomach as well as mucous metaplasia in other epithelial tissues for the analysis of cellular plasticity and oxidative stress response,” the investigators concluded.

The study by Tsugawa and colleagues was funded by Grants-in-Aid for Scientific Research; the Yakult Bio-Science Foundation; the Ministry of Education, Culture, Sports, Science and Technology (MEXT)-supported program for the Strategic Research Foundation at Private Universities; and Keio Gijuku Academic Development Funds. Dr. Suzuki disclosed relationships with Daiichi-Sankyo Co, EA Pharma Co, Otsuka Pharmaceutical Co Ltd, and others. The study by Meyer and colleagues was funded by the National Institutes of Health, the American Association of Cancer Research, the Department of Defense, and others, with no relevant conflicts of interest.

SOURCES: Meyer et al. CMGH. 2019 May 6. doi: 10.1016/j.jcmgh.2019.04.015; Tsugawa et al. CMGH. 2019 May 27. doi: 10.1016/j.jcmgh.2019.05.008.

At least 50% of patients with irritable bowel syndrome (IBS) described their condition as “extremely bothersome” based on survey data from 3,254 individuals. However, differences in the nature of other symptoms among IBS subtypes, namely IBS with diarrhea (IBS-D) and IBS with constipation (IBS-C), have not been well studied, wrote Sarah Ballou, PhD, of Beth Israel Deaconess Medical Center, Boston, and colleagues.

Source: American Gastroenterological Association

In a study published in Clinical Gastroenterology and Hepatology, the researchers reviewed survey results from 1,587 individuals with IBS-D and 1,667 with IBS-C. The average age of the patients was 47 years, 81% were female, and 90% were white.

Approximately 84% of patients with IBS-C and 93% of those with IBS-D reported abdominal pain, the most common symptom in both groups. Overall, 36% of the 1,885 patients employed or in school reported decreased productivity in those settings.

IBS-C patients were significantly more likely to report that their symptoms caused them to avoid sex, feel self-conscious about their bodies, have trouble concentrating, and feel “not like myself,” compared with IBS-D patients (P less than .004 for all).

IBS-D patients were significantly more likely to report that their symptoms caused them to avoid traveling in general, avoid places without bathrooms, avoid leaving the house, and have trouble making plans, compared with IBS-C patients (P less than .004 for all).

The survey also asked respondents what they would give up for 1 month in exchange for 1 month of relief from IBS symptoms. Overall, approximately 60% said they would give up alcohol, 55% said they would give up caffeine, 40% would give up sex, 24.5% would give up their cell phones, and 21.5% would give up the internet, the researchers wrote.

The study findings were limited by several factors, including the absence of survey respondents with mixed-type IBS, the reliance on self-reports, and the potential for recall bias. Also, the study was not designed to assess the impact of other comorbidities and did not include non-IBS controls, the researchers noted.

However, the results suggest that patients with different IBS subtypes struggle differently in areas of daily function, which has implications for treatment, they wrote.

“This study highlights important differences between IBS-C and IBS-D, which could impact the development and refinement of mind-body therapies for IBS, with tailored treatment goals for each IBS subtype. For example, treatment tailored specifically for IBS-D may be more behaviorally focused (e.g., exposure to specific situations outside the home) while treatment for IBS-C may be more cognitively focused (e.g., evaluating self-esteem and beliefs about self and others) in addition to targeting the bowel dysfunction and pain,” they concluded.

The researchers had no financial conflicts to disclose.

SOURCE: Ballou S et al. Clin Gastroenterol Hepatol. 2019 Aug 13. doi: 10.1016/j.cgh.2019.08.016.

At least 50% of patients with irritable bowel syndrome (IBS) described their condition as “extremely bothersome” based on survey data from 3,254 individuals. However, differences in the nature of other symptoms among IBS subtypes, namely IBS with diarrhea (IBS-D) and IBS with constipation (IBS-C), have not been well studied, wrote Sarah Ballou, PhD, of Beth Israel Deaconess Medical Center, Boston, and colleagues.

Source: American Gastroenterological Association

In a study published in Clinical Gastroenterology and Hepatology, the researchers reviewed survey results from 1,587 individuals with IBS-D and 1,667 with IBS-C. The average age of the patients was 47 years, 81% were female, and 90% were white.

Approximately 84% of patients with IBS-C and 93% of those with IBS-D reported abdominal pain, the most common symptom in both groups. Overall, 36% of the 1,885 patients employed or in school reported decreased productivity in those settings.

IBS-C patients were significantly more likely to report that their symptoms caused them to avoid sex, feel self-conscious about their bodies, have trouble concentrating, and feel “not like myself,” compared with IBS-D patients (P less than .004 for all).

IBS-D patients were significantly more likely to report that their symptoms caused them to avoid traveling in general, avoid places without bathrooms, avoid leaving the house, and have trouble making plans, compared with IBS-C patients (P less than .004 for all).

The survey also asked respondents what they would give up for 1 month in exchange for 1 month of relief from IBS symptoms. Overall, approximately 60% said they would give up alcohol, 55% said they would give up caffeine, 40% would give up sex, 24.5% would give up their cell phones, and 21.5% would give up the internet, the researchers wrote.

The study findings were limited by several factors, including the absence of survey respondents with mixed-type IBS, the reliance on self-reports, and the potential for recall bias. Also, the study was not designed to assess the impact of other comorbidities and did not include non-IBS controls, the researchers noted.

However, the results suggest that patients with different IBS subtypes struggle differently in areas of daily function, which has implications for treatment, they wrote.

“This study highlights important differences between IBS-C and IBS-D, which could impact the development and refinement of mind-body therapies for IBS, with tailored treatment goals for each IBS subtype. For example, treatment tailored specifically for IBS-D may be more behaviorally focused (e.g., exposure to specific situations outside the home) while treatment for IBS-C may be more cognitively focused (e.g., evaluating self-esteem and beliefs about self and others) in addition to targeting the bowel dysfunction and pain,” they concluded.

The researchers had no financial conflicts to disclose.

SOURCE: Ballou S et al. Clin Gastroenterol Hepatol. 2019 Aug 13. doi: 10.1016/j.cgh.2019.08.016.

At least 50% of patients with irritable bowel syndrome (IBS) described their condition as “extremely bothersome” based on survey data from 3,254 individuals. However, differences in the nature of other symptoms among IBS subtypes, namely IBS with diarrhea (IBS-D) and IBS with constipation (IBS-C), have not been well studied, wrote Sarah Ballou, PhD, of Beth Israel Deaconess Medical Center, Boston, and colleagues.

Source: American Gastroenterological Association

In a study published in Clinical Gastroenterology and Hepatology, the researchers reviewed survey results from 1,587 individuals with IBS-D and 1,667 with IBS-C. The average age of the patients was 47 years, 81% were female, and 90% were white.

Approximately 84% of patients with IBS-C and 93% of those with IBS-D reported abdominal pain, the most common symptom in both groups. Overall, 36% of the 1,885 patients employed or in school reported decreased productivity in those settings.

IBS-C patients were significantly more likely to report that their symptoms caused them to avoid sex, feel self-conscious about their bodies, have trouble concentrating, and feel “not like myself,” compared with IBS-D patients (P less than .004 for all).

IBS-D patients were significantly more likely to report that their symptoms caused them to avoid traveling in general, avoid places without bathrooms, avoid leaving the house, and have trouble making plans, compared with IBS-C patients (P less than .004 for all).

The survey also asked respondents what they would give up for 1 month in exchange for 1 month of relief from IBS symptoms. Overall, approximately 60% said they would give up alcohol, 55% said they would give up caffeine, 40% would give up sex, 24.5% would give up their cell phones, and 21.5% would give up the internet, the researchers wrote.

The study findings were limited by several factors, including the absence of survey respondents with mixed-type IBS, the reliance on self-reports, and the potential for recall bias. Also, the study was not designed to assess the impact of other comorbidities and did not include non-IBS controls, the researchers noted.

However, the results suggest that patients with different IBS subtypes struggle differently in areas of daily function, which has implications for treatment, they wrote.

“This study highlights important differences between IBS-C and IBS-D, which could impact the development and refinement of mind-body therapies for IBS, with tailored treatment goals for each IBS subtype. For example, treatment tailored specifically for IBS-D may be more behaviorally focused (e.g., exposure to specific situations outside the home) while treatment for IBS-C may be more cognitively focused (e.g., evaluating self-esteem and beliefs about self and others) in addition to targeting the bowel dysfunction and pain,” they concluded.

The researchers had no financial conflicts to disclose.

SOURCE: Ballou S et al. Clin Gastroenterol Hepatol. 2019 Aug 13. doi: 10.1016/j.cgh.2019.08.016.

Endoscopic submucosal dissection (ESD) is a viable treatment option for patients with submucosal (T1b) esophageal cancer who have a low risk of lymph node metastasis, according to an expert review.

Among patients with T1b esophageal cancer, ideal candidates for ESD have small (less than 2 cm), well-differentiated tumors that do not invade beyond the superficial submucosa (SM1) and lack lymphovascular invasion, reported lead author Mohamed O. Othman, MD, of Baylor College of Medicine in Houston, and colleagues. The literature review was recently commissioned by the American Gastroenterological Association (AGA), because of high clinical relevance.

“[ESD] has been gaining momentum as an alternative to surgery in treating early gastrointestinal neoplasms,” the investigators wrote in Clinical Gastroenterology and Hepatology.

Most patients who undergo surgical resection develop gastroesophageal reflux, the investigators noted, and many others develop serious complications or do not survive the procedure.

“Even a high-volume center such as Mayo Clinic reported a surgical mortality of 4% for T1a esophageal cancer,” the investigators wrote. “Moreover, 34% of patients developed postoperative complications such as anastomotic leaks, anastomotic strictures, cardiopulmonary complications, and feeding jejunostomy leaks. ... Therefore, a less-invasive alternative to esophagectomy would be extremely valuable in the management of early stage [esophageal cancer] if proven effective.”

The investigators reviewed studies evaluating safety and efficacy of surgical and endoscopic techniques, as well as available data for chemoradiation and radiofrequency ablation combinations, which could potentially optimize outcomes of endoscopic resection.

They concluded that most patients with esophageal cancer that does not extend beyond the mucosa (T1a) can be cured with endoscopic resection, based on 5-year survival rates from several Japanese trials. For patients with T1b disease, however, ESD is best suited for those with a low risk of lymph node metastasis. Unfortunately, identifying these candidates can be challenging, according to the investigators.

“The risk of lymph node metastasis depends on the depth of invasion, histologic type, and molecular characterization of the tumor,” the investigators explained, noting that depth of invasion is the trickiest to discern. Although endoscopic ultrasound (EUS) is still recommended for submucosal imaging, the review showed that EUS may overstage cancer in Barrett’s esophagus. The investigators suggested that volume laser endoscopy with infrared light could be a more accurate alternative, but it is not yet a clinical reality.

The review also showed potential for combining ESD with other modalities. For example, a study by Hamada and colleagues involving 66 patients with submucosal (T1b) esophageal squamous cell carcinoma found that a combination of ESD with chemoradiation led to similar 3- and 5-year survival rates as radical esophagectomy. The investigators highlighted the importance of lymph node metastasis in this study, as none of the 30 patients lacking lymph node involvement had metastatic recurrence, compared with 6 of the 36 patients who exhibited lymph node metastasis. According to the investigators, promising data are also anticipated for this combination among those with adenocarcinoma. And for patients with intestinal metaplasia and/or dysplasia, adding radiofrequency ablation after ESD appears to be an effective option; one recent study by Sharmila Subramaniam, BMBS, and colleagues found that this strategy led to clearance rates of 85% and 96% for metaplasia and dysplasia, respectively.

“Additional treatment should be determined by factors such as tumor grade, status of lymphovascular invasion, and depth of tumor, which have a direct influence on metastatic potential,” the investigators wrote.

The investigators suggested that, in the future, better diagnostics will be needed to characterize T1b disease, as this could streamline patient selection. “Future research should focus on novel biological and immunohistochemistry markers that can aid in the prediction of tumor behavior and [lymph node metastasis] in T1b esophageal cancer,” they concluded.

The study was commissioned by the American Gastroenterological Association. The investigators disclosed additional relationships with Boston Scientific, Olympus, Lumendi, and others.

SOURCE: Othman MO et al. CGH. 2019 Jun 4. doi: 10.1016/j.cgh.2019.05.045.

Endoscopic submucosal dissection (ESD) is a viable treatment option for patients with submucosal (T1b) esophageal cancer who have a low risk of lymph node metastasis, according to an expert review.

Among patients with T1b esophageal cancer, ideal candidates for ESD have small (less than 2 cm), well-differentiated tumors that do not invade beyond the superficial submucosa (SM1) and lack lymphovascular invasion, reported lead author Mohamed O. Othman, MD, of Baylor College of Medicine in Houston, and colleagues. The literature review was recently commissioned by the American Gastroenterological Association (AGA), because of high clinical relevance.

“[ESD] has been gaining momentum as an alternative to surgery in treating early gastrointestinal neoplasms,” the investigators wrote in Clinical Gastroenterology and Hepatology.

Most patients who undergo surgical resection develop gastroesophageal reflux, the investigators noted, and many others develop serious complications or do not survive the procedure.

“Even a high-volume center such as Mayo Clinic reported a surgical mortality of 4% for T1a esophageal cancer,” the investigators wrote. “Moreover, 34% of patients developed postoperative complications such as anastomotic leaks, anastomotic strictures, cardiopulmonary complications, and feeding jejunostomy leaks. ... Therefore, a less-invasive alternative to esophagectomy would be extremely valuable in the management of early stage [esophageal cancer] if proven effective.”

The investigators reviewed studies evaluating safety and efficacy of surgical and endoscopic techniques, as well as available data for chemoradiation and radiofrequency ablation combinations, which could potentially optimize outcomes of endoscopic resection.

They concluded that most patients with esophageal cancer that does not extend beyond the mucosa (T1a) can be cured with endoscopic resection, based on 5-year survival rates from several Japanese trials. For patients with T1b disease, however, ESD is best suited for those with a low risk of lymph node metastasis. Unfortunately, identifying these candidates can be challenging, according to the investigators.

“The risk of lymph node metastasis depends on the depth of invasion, histologic type, and molecular characterization of the tumor,” the investigators explained, noting that depth of invasion is the trickiest to discern. Although endoscopic ultrasound (EUS) is still recommended for submucosal imaging, the review showed that EUS may overstage cancer in Barrett’s esophagus. The investigators suggested that volume laser endoscopy with infrared light could be a more accurate alternative, but it is not yet a clinical reality.

The review also showed potential for combining ESD with other modalities. For example, a study by Hamada and colleagues involving 66 patients with submucosal (T1b) esophageal squamous cell carcinoma found that a combination of ESD with chemoradiation led to similar 3- and 5-year survival rates as radical esophagectomy. The investigators highlighted the importance of lymph node metastasis in this study, as none of the 30 patients lacking lymph node involvement had metastatic recurrence, compared with 6 of the 36 patients who exhibited lymph node metastasis. According to the investigators, promising data are also anticipated for this combination among those with adenocarcinoma. And for patients with intestinal metaplasia and/or dysplasia, adding radiofrequency ablation after ESD appears to be an effective option; one recent study by Sharmila Subramaniam, BMBS, and colleagues found that this strategy led to clearance rates of 85% and 96% for metaplasia and dysplasia, respectively.

“Additional treatment should be determined by factors such as tumor grade, status of lymphovascular invasion, and depth of tumor, which have a direct influence on metastatic potential,” the investigators wrote.

The investigators suggested that, in the future, better diagnostics will be needed to characterize T1b disease, as this could streamline patient selection. “Future research should focus on novel biological and immunohistochemistry markers that can aid in the prediction of tumor behavior and [lymph node metastasis] in T1b esophageal cancer,” they concluded.

The study was commissioned by the American Gastroenterological Association. The investigators disclosed additional relationships with Boston Scientific, Olympus, Lumendi, and others.

SOURCE: Othman MO et al. CGH. 2019 Jun 4. doi: 10.1016/j.cgh.2019.05.045.

Endoscopic submucosal dissection (ESD) is a viable treatment option for patients with submucosal (T1b) esophageal cancer who have a low risk of lymph node metastasis, according to an expert review.

Among patients with T1b esophageal cancer, ideal candidates for ESD have small (less than 2 cm), well-differentiated tumors that do not invade beyond the superficial submucosa (SM1) and lack lymphovascular invasion, reported lead author Mohamed O. Othman, MD, of Baylor College of Medicine in Houston, and colleagues. The literature review was recently commissioned by the American Gastroenterological Association (AGA), because of high clinical relevance.

“[ESD] has been gaining momentum as an alternative to surgery in treating early gastrointestinal neoplasms,” the investigators wrote in Clinical Gastroenterology and Hepatology.

Most patients who undergo surgical resection develop gastroesophageal reflux, the investigators noted, and many others develop serious complications or do not survive the procedure.

“Even a high-volume center such as Mayo Clinic reported a surgical mortality of 4% for T1a esophageal cancer,” the investigators wrote. “Moreover, 34% of patients developed postoperative complications such as anastomotic leaks, anastomotic strictures, cardiopulmonary complications, and feeding jejunostomy leaks. ... Therefore, a less-invasive alternative to esophagectomy would be extremely valuable in the management of early stage [esophageal cancer] if proven effective.”

The investigators reviewed studies evaluating safety and efficacy of surgical and endoscopic techniques, as well as available data for chemoradiation and radiofrequency ablation combinations, which could potentially optimize outcomes of endoscopic resection.

They concluded that most patients with esophageal cancer that does not extend beyond the mucosa (T1a) can be cured with endoscopic resection, based on 5-year survival rates from several Japanese trials. For patients with T1b disease, however, ESD is best suited for those with a low risk of lymph node metastasis. Unfortunately, identifying these candidates can be challenging, according to the investigators.

“The risk of lymph node metastasis depends on the depth of invasion, histologic type, and molecular characterization of the tumor,” the investigators explained, noting that depth of invasion is the trickiest to discern. Although endoscopic ultrasound (EUS) is still recommended for submucosal imaging, the review showed that EUS may overstage cancer in Barrett’s esophagus. The investigators suggested that volume laser endoscopy with infrared light could be a more accurate alternative, but it is not yet a clinical reality.

The review also showed potential for combining ESD with other modalities. For example, a study by Hamada and colleagues involving 66 patients with submucosal (T1b) esophageal squamous cell carcinoma found that a combination of ESD with chemoradiation led to similar 3- and 5-year survival rates as radical esophagectomy. The investigators highlighted the importance of lymph node metastasis in this study, as none of the 30 patients lacking lymph node involvement had metastatic recurrence, compared with 6 of the 36 patients who exhibited lymph node metastasis. According to the investigators, promising data are also anticipated for this combination among those with adenocarcinoma. And for patients with intestinal metaplasia and/or dysplasia, adding radiofrequency ablation after ESD appears to be an effective option; one recent study by Sharmila Subramaniam, BMBS, and colleagues found that this strategy led to clearance rates of 85% and 96% for metaplasia and dysplasia, respectively.

“Additional treatment should be determined by factors such as tumor grade, status of lymphovascular invasion, and depth of tumor, which have a direct influence on metastatic potential,” the investigators wrote.

The investigators suggested that, in the future, better diagnostics will be needed to characterize T1b disease, as this could streamline patient selection. “Future research should focus on novel biological and immunohistochemistry markers that can aid in the prediction of tumor behavior and [lymph node metastasis] in T1b esophageal cancer,” they concluded.

The study was commissioned by the American Gastroenterological Association. The investigators disclosed additional relationships with Boston Scientific, Olympus, Lumendi, and others.

SOURCE: Othman MO et al. CGH. 2019 Jun 4. doi: 10.1016/j.cgh.2019.05.045.

Patients with nonalcoholic steatohepatitis (NASH) and advanced fibrosis reported lower quality of life that is worsened in those who develop cirrhosis, based on data from 1,667 individuals.

NASH is becoming an increasingly common cause of liver disease, cirrhosis, and hepatocellular carcinoma and can have a negative effect on patients’ quality of life and other patient-reported outcomes (PROs), but studies of the impact on PROs in these patients are limited, wrote Zobair M. Younossi, MD, of the Inova Health System, Falls Church, Va., and colleagues.

In a study published in Clinical Gastroenterology and Hepatology, the researchers reviewed data from 870 adults with NASH cirrhosis and 797 with NASH and bridging fibrosis. The average age of the patients was 58 years, 73% were white, 40% were male, 52% had cirrhosis, and 74% had diabetes.

The researchers used four tools to assess quality of life: the SF-36 (36-Item Short Form Health Survey), the EQ-5D (Euroqol, a generic health questionnaire), the CLDQ-NASH (Chronic Liver Disease Questionnaire-NASH), and the WPAI:SHP (Work Productivity and Activity Impairment: Specific Health Problem).

The SF-36 score is based on eight domains: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional, and mental health.

Overall, patients with NASH and cirrhosis had significantly lower scores on domains of the SF-36 that related to physical function, compared with bridging fibrosis patients (70.3 vs. 73.6), as well as role physical (71.6 vs. 75.4) and bodily pain (65.0 vs. 68.6). The other areas of significant impairment in NASH patients with cirrhosis, compared with NASH patients with fibrosis, appeared in four domains of the disease-specific CLDQ-NASH: activity, emotional, fatigue, and worry. In addition, the EQ-5D utility score was significantly lower in cirrhosis patients, compared with fibrosis patients.

Older age, male sex, Asian race, and U.S. location of study enrollment were independent predictors of higher PRO scores in a multivariate analysis, while black race, history of smoking, history of diabetes, higher body mass index, cirrhosis, and history of comorbidities that were gastrointestinal, musculoskeletal, psychiatric, or neurologic were independent predictors of lower PRO scores in patients with advanced fibrosis and NASH.

WPAI:SHP scores, which focused on work productivity impairment and absenteeism, were not significantly different between the groups.

The study findings were limited by several factors including the specific nature of the study population and absence of non-NASH controls, the potential of false positives because of the use of self-reports, and the lack of longitudinal data, the researchers said. The results should be verified in a larger, diverse patient population, the researchers noted, but the data highlight the impairment in quality of life and productivity among patients with NASH and “can inform patients, clinicians, payers, and policymakers about the total burden of the disease and also the comprehensive benefit of treatment,” they concluded.

The study was supported by Gilead Sciences. Dr. Younossi disclosed relationships with Gilead Sciences, as well as Intercept, NovoNordisk, BMS, Allergan/Tobira, Terns, Viking, AbbVie, Novartis, and Quest Diagnostics.

SOURCE: Younossi ZM et al. Clin Gastroenterol Hepatol. 2019. doi: 10.1016/j.cgh.2019.02.024.

Patients with nonalcoholic steatohepatitis (NASH) and advanced fibrosis reported lower quality of life that is worsened in those who develop cirrhosis, based on data from 1,667 individuals.

NASH is becoming an increasingly common cause of liver disease, cirrhosis, and hepatocellular carcinoma and can have a negative effect on patients’ quality of life and other patient-reported outcomes (PROs), but studies of the impact on PROs in these patients are limited, wrote Zobair M. Younossi, MD, of the Inova Health System, Falls Church, Va., and colleagues.

In a study published in Clinical Gastroenterology and Hepatology, the researchers reviewed data from 870 adults with NASH cirrhosis and 797 with NASH and bridging fibrosis. The average age of the patients was 58 years, 73% were white, 40% were male, 52% had cirrhosis, and 74% had diabetes.

The researchers used four tools to assess quality of life: the SF-36 (36-Item Short Form Health Survey), the EQ-5D (Euroqol, a generic health questionnaire), the CLDQ-NASH (Chronic Liver Disease Questionnaire-NASH), and the WPAI:SHP (Work Productivity and Activity Impairment: Specific Health Problem).

The SF-36 score is based on eight domains: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional, and mental health.

Overall, patients with NASH and cirrhosis had significantly lower scores on domains of the SF-36 that related to physical function, compared with bridging fibrosis patients (70.3 vs. 73.6), as well as role physical (71.6 vs. 75.4) and bodily pain (65.0 vs. 68.6). The other areas of significant impairment in NASH patients with cirrhosis, compared with NASH patients with fibrosis, appeared in four domains of the disease-specific CLDQ-NASH: activity, emotional, fatigue, and worry. In addition, the EQ-5D utility score was significantly lower in cirrhosis patients, compared with fibrosis patients.

Older age, male sex, Asian race, and U.S. location of study enrollment were independent predictors of higher PRO scores in a multivariate analysis, while black race, history of smoking, history of diabetes, higher body mass index, cirrhosis, and history of comorbidities that were gastrointestinal, musculoskeletal, psychiatric, or neurologic were independent predictors of lower PRO scores in patients with advanced fibrosis and NASH.

WPAI:SHP scores, which focused on work productivity impairment and absenteeism, were not significantly different between the groups.

The study findings were limited by several factors including the specific nature of the study population and absence of non-NASH controls, the potential of false positives because of the use of self-reports, and the lack of longitudinal data, the researchers said. The results should be verified in a larger, diverse patient population, the researchers noted, but the data highlight the impairment in quality of life and productivity among patients with NASH and “can inform patients, clinicians, payers, and policymakers about the total burden of the disease and also the comprehensive benefit of treatment,” they concluded.

The study was supported by Gilead Sciences. Dr. Younossi disclosed relationships with Gilead Sciences, as well as Intercept, NovoNordisk, BMS, Allergan/Tobira, Terns, Viking, AbbVie, Novartis, and Quest Diagnostics.

SOURCE: Younossi ZM et al. Clin Gastroenterol Hepatol. 2019. doi: 10.1016/j.cgh.2019.02.024.

Patients with nonalcoholic steatohepatitis (NASH) and advanced fibrosis reported lower quality of life that is worsened in those who develop cirrhosis, based on data from 1,667 individuals.

NASH is becoming an increasingly common cause of liver disease, cirrhosis, and hepatocellular carcinoma and can have a negative effect on patients’ quality of life and other patient-reported outcomes (PROs), but studies of the impact on PROs in these patients are limited, wrote Zobair M. Younossi, MD, of the Inova Health System, Falls Church, Va., and colleagues.

In a study published in Clinical Gastroenterology and Hepatology, the researchers reviewed data from 870 adults with NASH cirrhosis and 797 with NASH and bridging fibrosis. The average age of the patients was 58 years, 73% were white, 40% were male, 52% had cirrhosis, and 74% had diabetes.

The researchers used four tools to assess quality of life: the SF-36 (36-Item Short Form Health Survey), the EQ-5D (Euroqol, a generic health questionnaire), the CLDQ-NASH (Chronic Liver Disease Questionnaire-NASH), and the WPAI:SHP (Work Productivity and Activity Impairment: Specific Health Problem).

The SF-36 score is based on eight domains: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional, and mental health.

Overall, patients with NASH and cirrhosis had significantly lower scores on domains of the SF-36 that related to physical function, compared with bridging fibrosis patients (70.3 vs. 73.6), as well as role physical (71.6 vs. 75.4) and bodily pain (65.0 vs. 68.6). The other areas of significant impairment in NASH patients with cirrhosis, compared with NASH patients with fibrosis, appeared in four domains of the disease-specific CLDQ-NASH: activity, emotional, fatigue, and worry. In addition, the EQ-5D utility score was significantly lower in cirrhosis patients, compared with fibrosis patients.

Older age, male sex, Asian race, and U.S. location of study enrollment were independent predictors of higher PRO scores in a multivariate analysis, while black race, history of smoking, history of diabetes, higher body mass index, cirrhosis, and history of comorbidities that were gastrointestinal, musculoskeletal, psychiatric, or neurologic were independent predictors of lower PRO scores in patients with advanced fibrosis and NASH.

WPAI:SHP scores, which focused on work productivity impairment and absenteeism, were not significantly different between the groups.

The study findings were limited by several factors including the specific nature of the study population and absence of non-NASH controls, the potential of false positives because of the use of self-reports, and the lack of longitudinal data, the researchers said. The results should be verified in a larger, diverse patient population, the researchers noted, but the data highlight the impairment in quality of life and productivity among patients with NASH and “can inform patients, clinicians, payers, and policymakers about the total burden of the disease and also the comprehensive benefit of treatment,” they concluded.

The study was supported by Gilead Sciences. Dr. Younossi disclosed relationships with Gilead Sciences, as well as Intercept, NovoNordisk, BMS, Allergan/Tobira, Terns, Viking, AbbVie, Novartis, and Quest Diagnostics.

SOURCE: Younossi ZM et al. Clin Gastroenterol Hepatol. 2019. doi: 10.1016/j.cgh.2019.02.024.

Use of clip closure significantly reduced delayed bleeding in patients who underwent resections for large colorectal lesions, based on data from 235 individuals.

Source: American Gastroenterological Association

“Closure of a mucosal defect with clips after resection has long been considered to reduce the risk of bleeding,” but evidence to support this practice is limited, wrote Eduardo Albéniz, MD, of the Public University of Navarra (Spain), and colleagues.

In a study published in Gastroenterology, the researchers identified 235 consecutive patients who had resections of large nonpedunculated colorectal lesions from May 2016 to June 2018. Patients had an average or high risk of delayed bleeding and were randomized to receive scar closure with either 11-mm through-the-scope clips (119 patients) or no clip (116 patients).

Delayed bleeding occurred in 14 control patients (12.1%), compared with 6 clip patients (5%), for a risk reduction of 7%. The clip group included 68 cases (57%) of complete closure and 33 cases (28%) with partial closure, as well as 18 cases of failure to close (15%); only 1 case of delayed bleeding occurred in the clip group after completion of clip closure. On average, six clips were needed for complete closure.

None of the patients who experienced delayed bleeding required surgical or angiographic intervention, although 15 of the 20 patients with bleeding underwent additional endoscopy. Other adverse events included immediate bleeding in 21 clip patients and 18 controls that was managed with snare soft-tip coagulation. No deaths were reported in connection with the study.

Demographics were similar between the two groups, but the subset of patients with complete closure included more individuals aged 75 years and older and more cases with smaller polyps, compared with other subgroups, the researchers noted.

The study findings were limited by several factors, including the difficulty in predicting delayed bleeding, the potential for selection bias given the timing of patient randomization, the lack of information about polyps that were excluded from treatment, and the difficulty in completely closing the mucosal defects, the researchers noted. However, the results suggest that complete clip closure, despite its challenges, “displays a clear trend to reduce delayed bleeding risk,” and is worth an attempt.

The study was supported by the Spanish Society of Digestive Endoscopy. The researchers had no financial conflicts to disclose. MicroTech (Nanjing, China) contributed the clips used in the study.

SOURCE: Albéniz E et al. Gastroenterology. 2019 Jul 27. doi: 10.1053/j.gastro.2019.07.037.

Use of clip closure significantly reduced delayed bleeding in patients who underwent resections for large colorectal lesions, based on data from 235 individuals.

Source: American Gastroenterological Association

“Closure of a mucosal defect with clips after resection has long been considered to reduce the risk of bleeding,” but evidence to support this practice is limited, wrote Eduardo Albéniz, MD, of the Public University of Navarra (Spain), and colleagues.

In a study published in Gastroenterology, the researchers identified 235 consecutive patients who had resections of large nonpedunculated colorectal lesions from May 2016 to June 2018. Patients had an average or high risk of delayed bleeding and were randomized to receive scar closure with either 11-mm through-the-scope clips (119 patients) or no clip (116 patients).

Delayed bleeding occurred in 14 control patients (12.1%), compared with 6 clip patients (5%), for a risk reduction of 7%. The clip group included 68 cases (57%) of complete closure and 33 cases (28%) with partial closure, as well as 18 cases of failure to close (15%); only 1 case of delayed bleeding occurred in the clip group after completion of clip closure. On average, six clips were needed for complete closure.

None of the patients who experienced delayed bleeding required surgical or angiographic intervention, although 15 of the 20 patients with bleeding underwent additional endoscopy. Other adverse events included immediate bleeding in 21 clip patients and 18 controls that was managed with snare soft-tip coagulation. No deaths were reported in connection with the study.

Demographics were similar between the two groups, but the subset of patients with complete closure included more individuals aged 75 years and older and more cases with smaller polyps, compared with other subgroups, the researchers noted.

The study findings were limited by several factors, including the difficulty in predicting delayed bleeding, the potential for selection bias given the timing of patient randomization, the lack of information about polyps that were excluded from treatment, and the difficulty in completely closing the mucosal defects, the researchers noted. However, the results suggest that complete clip closure, despite its challenges, “displays a clear trend to reduce delayed bleeding risk,” and is worth an attempt.

The study was supported by the Spanish Society of Digestive Endoscopy. The researchers had no financial conflicts to disclose. MicroTech (Nanjing, China) contributed the clips used in the study.

SOURCE: Albéniz E et al. Gastroenterology. 2019 Jul 27. doi: 10.1053/j.gastro.2019.07.037.

Use of clip closure significantly reduced delayed bleeding in patients who underwent resections for large colorectal lesions, based on data from 235 individuals.

Source: American Gastroenterological Association

“Closure of a mucosal defect with clips after resection has long been considered to reduce the risk of bleeding,” but evidence to support this practice is limited, wrote Eduardo Albéniz, MD, of the Public University of Navarra (Spain), and colleagues.

In a study published in Gastroenterology, the researchers identified 235 consecutive patients who had resections of large nonpedunculated colorectal lesions from May 2016 to June 2018. Patients had an average or high risk of delayed bleeding and were randomized to receive scar closure with either 11-mm through-the-scope clips (119 patients) or no clip (116 patients).

Delayed bleeding occurred in 14 control patients (12.1%), compared with 6 clip patients (5%), for a risk reduction of 7%. The clip group included 68 cases (57%) of complete closure and 33 cases (28%) with partial closure, as well as 18 cases of failure to close (15%); only 1 case of delayed bleeding occurred in the clip group after completion of clip closure. On average, six clips were needed for complete closure.

None of the patients who experienced delayed bleeding required surgical or angiographic intervention, although 15 of the 20 patients with bleeding underwent additional endoscopy. Other adverse events included immediate bleeding in 21 clip patients and 18 controls that was managed with snare soft-tip coagulation. No deaths were reported in connection with the study.

Demographics were similar between the two groups, but the subset of patients with complete closure included more individuals aged 75 years and older and more cases with smaller polyps, compared with other subgroups, the researchers noted.

The study findings were limited by several factors, including the difficulty in predicting delayed bleeding, the potential for selection bias given the timing of patient randomization, the lack of information about polyps that were excluded from treatment, and the difficulty in completely closing the mucosal defects, the researchers noted. However, the results suggest that complete clip closure, despite its challenges, “displays a clear trend to reduce delayed bleeding risk,” and is worth an attempt.

The study was supported by the Spanish Society of Digestive Endoscopy. The researchers had no financial conflicts to disclose. MicroTech (Nanjing, China) contributed the clips used in the study.

SOURCE: Albéniz E et al. Gastroenterology. 2019 Jul 27. doi: 10.1053/j.gastro.2019.07.037.

Direct-acting antiviral (DAA) therapy significantly reduced the risk of death in patients with hepatitis C infections and a history of hepatocellular carcinoma, based on data from 797 individuals.

Previous studies have reported a benefit of direct-acting antiviral (DAA) therapy for reducing mortality in patients with hepatocellular carcinoma (HCC), but data on its impact in patients with complete responses to HCC therapy are limited, wrote Amit G. Singal, MD, of the University of Texas, Dallas, and colleagues.

In a study published in Gastroenterology, the researchers identified adult HCC patients who achieved complete treatment response between January 2013 and December 2017. The study included patients from 31 locations in the United States and Canada. Complete response to treatment was defined as “disappearance of arterial enhancement from all HCC lesions on contrast-enhanced cross-sectional imaging.”

A total of 383 (48.1%) of patients were randomized to DAA therapy, and 414 (51.9%) did not receive DAA treatment for their HCV infection after complete response to prior HCC therapy.

A total of 43 deaths occurred among DAA patients over 941 person-years of follow-up, compared with 103 deaths over 527 person-years of follow-up for the untreated controls. Overall, DAA therapy was associated with a significantly reduced risk of death (hazard ratio, 0.54), compared with no therapy. Of note, patients with a sustained virologic response showed a reduced risk of death (HR, 0.29), but those without a sustained virologic response to DAA therapy did not (HR, 1.13).

The findings support those from previous studies suggesting that DAA therapy may reduce mortality in patients with a history of HCC, the researchers said.

The study findings were limited by several factors, including potential confounding if DAA was given to patients with better prognoses, the researchers noted. Other limitations include the use of imaging in routine clinical care rather than centralized review, the loss of approximately 9% of the patients to follow-up, and the lack of data on hepatic decompensation during follow-up, the researchers said. However, the results were strengthened by the multicenter design, large cohort, and inclusion of untreated controls, and support the use of DAA therapies as “likely beneficial in HCV-infected patients with a history of HCC,” they concluded.

The study was funded in part by the National Cancer Institute and AbbVie. Dr. Singal disclosed relationships with companies including AbbVie, Gilead, Bayer, Eisai, Wako Diagnostics, Exact Sciences, Exelixis, Roche, Glycotest, and Bristol-Myers Squibb.

SOURCE: Singal AG et al. Gastroenterology. 2019. doi: 10.1053/j.gastro.2019.07.040.

Direct-acting antiviral (DAA) therapy significantly reduced the risk of death in patients with hepatitis C infections and a history of hepatocellular carcinoma, based on data from 797 individuals.

Previous studies have reported a benefit of direct-acting antiviral (DAA) therapy for reducing mortality in patients with hepatocellular carcinoma (HCC), but data on its impact in patients with complete responses to HCC therapy are limited, wrote Amit G. Singal, MD, of the University of Texas, Dallas, and colleagues.

In a study published in Gastroenterology, the researchers identified adult HCC patients who achieved complete treatment response between January 2013 and December 2017. The study included patients from 31 locations in the United States and Canada. Complete response to treatment was defined as “disappearance of arterial enhancement from all HCC lesions on contrast-enhanced cross-sectional imaging.”

A total of 383 (48.1%) of patients were randomized to DAA therapy, and 414 (51.9%) did not receive DAA treatment for their HCV infection after complete response to prior HCC therapy.

A total of 43 deaths occurred among DAA patients over 941 person-years of follow-up, compared with 103 deaths over 527 person-years of follow-up for the untreated controls. Overall, DAA therapy was associated with a significantly reduced risk of death (hazard ratio, 0.54), compared with no therapy. Of note, patients with a sustained virologic response showed a reduced risk of death (HR, 0.29), but those without a sustained virologic response to DAA therapy did not (HR, 1.13).

The findings support those from previous studies suggesting that DAA therapy may reduce mortality in patients with a history of HCC, the researchers said.

The study findings were limited by several factors, including potential confounding if DAA was given to patients with better prognoses, the researchers noted. Other limitations include the use of imaging in routine clinical care rather than centralized review, the loss of approximately 9% of the patients to follow-up, and the lack of data on hepatic decompensation during follow-up, the researchers said. However, the results were strengthened by the multicenter design, large cohort, and inclusion of untreated controls, and support the use of DAA therapies as “likely beneficial in HCV-infected patients with a history of HCC,” they concluded.

The study was funded in part by the National Cancer Institute and AbbVie. Dr. Singal disclosed relationships with companies including AbbVie, Gilead, Bayer, Eisai, Wako Diagnostics, Exact Sciences, Exelixis, Roche, Glycotest, and Bristol-Myers Squibb.

SOURCE: Singal AG et al. Gastroenterology. 2019. doi: 10.1053/j.gastro.2019.07.040.

Direct-acting antiviral (DAA) therapy significantly reduced the risk of death in patients with hepatitis C infections and a history of hepatocellular carcinoma, based on data from 797 individuals.

Previous studies have reported a benefit of direct-acting antiviral (DAA) therapy for reducing mortality in patients with hepatocellular carcinoma (HCC), but data on its impact in patients with complete responses to HCC therapy are limited, wrote Amit G. Singal, MD, of the University of Texas, Dallas, and colleagues.

In a study published in Gastroenterology, the researchers identified adult HCC patients who achieved complete treatment response between January 2013 and December 2017. The study included patients from 31 locations in the United States and Canada. Complete response to treatment was defined as “disappearance of arterial enhancement from all HCC lesions on contrast-enhanced cross-sectional imaging.”

A total of 383 (48.1%) of patients were randomized to DAA therapy, and 414 (51.9%) did not receive DAA treatment for their HCV infection after complete response to prior HCC therapy.

A total of 43 deaths occurred among DAA patients over 941 person-years of follow-up, compared with 103 deaths over 527 person-years of follow-up for the untreated controls. Overall, DAA therapy was associated with a significantly reduced risk of death (hazard ratio, 0.54), compared with no therapy. Of note, patients with a sustained virologic response showed a reduced risk of death (HR, 0.29), but those without a sustained virologic response to DAA therapy did not (HR, 1.13).

The findings support those from previous studies suggesting that DAA therapy may reduce mortality in patients with a history of HCC, the researchers said.

The study findings were limited by several factors, including potential confounding if DAA was given to patients with better prognoses, the researchers noted. Other limitations include the use of imaging in routine clinical care rather than centralized review, the loss of approximately 9% of the patients to follow-up, and the lack of data on hepatic decompensation during follow-up, the researchers said. However, the results were strengthened by the multicenter design, large cohort, and inclusion of untreated controls, and support the use of DAA therapies as “likely beneficial in HCV-infected patients with a history of HCC,” they concluded.

The study was funded in part by the National Cancer Institute and AbbVie. Dr. Singal disclosed relationships with companies including AbbVie, Gilead, Bayer, Eisai, Wako Diagnostics, Exact Sciences, Exelixis, Roche, Glycotest, and Bristol-Myers Squibb.

SOURCE: Singal AG et al. Gastroenterology. 2019. doi: 10.1053/j.gastro.2019.07.040.

Screening for colorectal cancer in patients with cystic fibrosis is cost effective, and should be started at a younger age and performed more often, new research suggests.

While colorectal cancer (CRC) screening traditionally begins at age 50 years in people at average risk for the disease, those at high risk usually begin undergoing colonoscopies at an earlier age. Patients with cystic fibrosis fall under the latter category, wrote Andrea Gini, of the department of public health at Erasmus Medical Center in Rotterdam, the Netherlands, and colleagues, with an incidence of CRC up to 30 times higher than the general population, but their shorter lifespan has led to a “different trade-off between the benefits and harms of CRC screening.”

Between 2000 and 2015, the median predicted survival age for patients with cystic fibrosis increased from 33.3 years to 41.7 years; this increased survival has brought increased risk for other diseases, particularly in the GI tract, Mr. Gini and colleagues wrote in Gastroenterology. By using the Microsimulation Screening Analysis–Colon model – a joint project between Erasmus Medical Center and Memorial Sloan Kettering Cancer Center in New York – the investigators assessed the cost-effectiveness of CRC screening in patients with cystic fibrosis.

Three cohorts of 10 million patients each were simulated, with one cohort having undergone transplant, one cohort not having transplant, and one cohort of individuals without cystic fibrosis. The simulated patient age was 30 years in 2017. A total of 76 different colonoscopy-screening strategies were assessed, with each differing in screening interval (3, 5, or 10 years for colonoscopy), age to start screening (30, 35, 40, 45, or 50 years), and age to end screening (55, 60, 65, 70, or 75 years). The optimal screening strategy was determined based on a willingness-to-pay threshold of $100,000 per life-year gained, the investigators wrote.

In the absence of screening, the mortality rate for nontransplant cystic fibrosis patients was 19.1 per 1,000 people, and the rate for cystic fibrosis patients who had undergone transplant was 22.3 per 1,000 people. The standard screening strategy prevented more than 73% of CRC deaths in the general population, 66% of deaths in nontransplant cystic fibrosis patients, and 36% of deaths in cystic fibrosis patients with transplant; however, the model predicted that only 22% of individuals who received a transplant and 36% of those who did not would reach the age of 50 years.

According to the model, the optimal colonoscopy-screening strategy for nontransplant patients was one screen every 5 years, starting at 40 and screening until the age of 75. The incremental cost-effectiveness ratio (ICER) was $84,000 per life-year gained; CRC incidence was reduced by 52% and CRC mortality was reduced by 79%. For transplant patients, the best strategy was one screen every 3 years between the ages of 35 and 55, which reduced CRC mortality by 82% at an ICER of $71,000 per life-year gained.

In a separate analysis of fecal immunochemical testing, a less-demanding alternative to colonoscopy, the optimal screening strategy was an annual test between the age of 35 and 75 years for nontransplant cystic fibrosis patients, for an ICER of $47,000 per life-year gained and a CRC mortality reduction of 78%. The best strategy for transplant patients was once a year between the ages of 30 and 60, which reduced CRC mortality by 77% at an ICER of $86,000 per life-year gained. While fecal immunochemical testing may be more cost effective than colonoscopy, “specific evidence of its performance in the cystic fibrosis population is required before considering this screening modality,” the investigators noted.

“This study indicates that there is benefit to earlier CRC screening in the cystic fibrosis population and [that it] can be done at acceptable costs,” the investigators wrote. “The findings of this analysis support clinicians, researchers, and policy makers who aim to define a tailored CRC screening for individuals with cystic fibrosis in the United States.”

The study was funded by the Cystic Fibrosis Foundation, the Cancer Intervention and Surveillance Modeling Network consortium, and Memorial Sloan Kettering Cancer Center. The investigators reported no conflicts of interest.

Help your patients understand what do expect during and how to prepare for a colonoscopy by sharing AGA’s patient education at https://www.gastro.org/practice-guidance/gi-patient-center/topic/colonoscopy.

[email protected]

SOURCE: Gini A et al. Gastroenterology. 2017 Dec 27. doi: 10.1053/j.gastro.2017.12.011.

Screening for colorectal cancer in patients with cystic fibrosis is cost effective, and should be started at a younger age and performed more often, new research suggests.

While colorectal cancer (CRC) screening traditionally begins at age 50 years in people at average risk for the disease, those at high risk usually begin undergoing colonoscopies at an earlier age. Patients with cystic fibrosis fall under the latter category, wrote Andrea Gini, of the department of public health at Erasmus Medical Center in Rotterdam, the Netherlands, and colleagues, with an incidence of CRC up to 30 times higher than the general population, but their shorter lifespan has led to a “different trade-off between the benefits and harms of CRC screening.”

Between 2000 and 2015, the median predicted survival age for patients with cystic fibrosis increased from 33.3 years to 41.7 years; this increased survival has brought increased risk for other diseases, particularly in the GI tract, Mr. Gini and colleagues wrote in Gastroenterology. By using the Microsimulation Screening Analysis–Colon model – a joint project between Erasmus Medical Center and Memorial Sloan Kettering Cancer Center in New York – the investigators assessed the cost-effectiveness of CRC screening in patients with cystic fibrosis.

Three cohorts of 10 million patients each were simulated, with one cohort having undergone transplant, one cohort not having transplant, and one cohort of individuals without cystic fibrosis. The simulated patient age was 30 years in 2017. A total of 76 different colonoscopy-screening strategies were assessed, with each differing in screening interval (3, 5, or 10 years for colonoscopy), age to start screening (30, 35, 40, 45, or 50 years), and age to end screening (55, 60, 65, 70, or 75 years). The optimal screening strategy was determined based on a willingness-to-pay threshold of $100,000 per life-year gained, the investigators wrote.

In the absence of screening, the mortality rate for nontransplant cystic fibrosis patients was 19.1 per 1,000 people, and the rate for cystic fibrosis patients who had undergone transplant was 22.3 per 1,000 people. The standard screening strategy prevented more than 73% of CRC deaths in the general population, 66% of deaths in nontransplant cystic fibrosis patients, and 36% of deaths in cystic fibrosis patients with transplant; however, the model predicted that only 22% of individuals who received a transplant and 36% of those who did not would reach the age of 50 years.

According to the model, the optimal colonoscopy-screening strategy for nontransplant patients was one screen every 5 years, starting at 40 and screening until the age of 75. The incremental cost-effectiveness ratio (ICER) was $84,000 per life-year gained; CRC incidence was reduced by 52% and CRC mortality was reduced by 79%. For transplant patients, the best strategy was one screen every 3 years between the ages of 35 and 55, which reduced CRC mortality by 82% at an ICER of $71,000 per life-year gained.

In a separate analysis of fecal immunochemical testing, a less-demanding alternative to colonoscopy, the optimal screening strategy was an annual test between the age of 35 and 75 years for nontransplant cystic fibrosis patients, for an ICER of $47,000 per life-year gained and a CRC mortality reduction of 78%. The best strategy for transplant patients was once a year between the ages of 30 and 60, which reduced CRC mortality by 77% at an ICER of $86,000 per life-year gained. While fecal immunochemical testing may be more cost effective than colonoscopy, “specific evidence of its performance in the cystic fibrosis population is required before considering this screening modality,” the investigators noted.

“This study indicates that there is benefit to earlier CRC screening in the cystic fibrosis population and [that it] can be done at acceptable costs,” the investigators wrote. “The findings of this analysis support clinicians, researchers, and policy makers who aim to define a tailored CRC screening for individuals with cystic fibrosis in the United States.”

The study was funded by the Cystic Fibrosis Foundation, the Cancer Intervention and Surveillance Modeling Network consortium, and Memorial Sloan Kettering Cancer Center. The investigators reported no conflicts of interest.

Help your patients understand what do expect during and how to prepare for a colonoscopy by sharing AGA’s patient education at https://www.gastro.org/practice-guidance/gi-patient-center/topic/colonoscopy.

[email protected]

SOURCE: Gini A et al. Gastroenterology. 2017 Dec 27. doi: 10.1053/j.gastro.2017.12.011.

Screening for colorectal cancer in patients with cystic fibrosis is cost effective, and should be started at a younger age and performed more often, new research suggests.

While colorectal cancer (CRC) screening traditionally begins at age 50 years in people at average risk for the disease, those at high risk usually begin undergoing colonoscopies at an earlier age. Patients with cystic fibrosis fall under the latter category, wrote Andrea Gini, of the department of public health at Erasmus Medical Center in Rotterdam, the Netherlands, and colleagues, with an incidence of CRC up to 30 times higher than the general population, but their shorter lifespan has led to a “different trade-off between the benefits and harms of CRC screening.”

Between 2000 and 2015, the median predicted survival age for patients with cystic fibrosis increased from 33.3 years to 41.7 years; this increased survival has brought increased risk for other diseases, particularly in the GI tract, Mr. Gini and colleagues wrote in Gastroenterology. By using the Microsimulation Screening Analysis–Colon model – a joint project between Erasmus Medical Center and Memorial Sloan Kettering Cancer Center in New York – the investigators assessed the cost-effectiveness of CRC screening in patients with cystic fibrosis.

Three cohorts of 10 million patients each were simulated, with one cohort having undergone transplant, one cohort not having transplant, and one cohort of individuals without cystic fibrosis. The simulated patient age was 30 years in 2017. A total of 76 different colonoscopy-screening strategies were assessed, with each differing in screening interval (3, 5, or 10 years for colonoscopy), age to start screening (30, 35, 40, 45, or 50 years), and age to end screening (55, 60, 65, 70, or 75 years). The optimal screening strategy was determined based on a willingness-to-pay threshold of $100,000 per life-year gained, the investigators wrote.

In the absence of screening, the mortality rate for nontransplant cystic fibrosis patients was 19.1 per 1,000 people, and the rate for cystic fibrosis patients who had undergone transplant was 22.3 per 1,000 people. The standard screening strategy prevented more than 73% of CRC deaths in the general population, 66% of deaths in nontransplant cystic fibrosis patients, and 36% of deaths in cystic fibrosis patients with transplant; however, the model predicted that only 22% of individuals who received a transplant and 36% of those who did not would reach the age of 50 years.

According to the model, the optimal colonoscopy-screening strategy for nontransplant patients was one screen every 5 years, starting at 40 and screening until the age of 75. The incremental cost-effectiveness ratio (ICER) was $84,000 per life-year gained; CRC incidence was reduced by 52% and CRC mortality was reduced by 79%. For transplant patients, the best strategy was one screen every 3 years between the ages of 35 and 55, which reduced CRC mortality by 82% at an ICER of $71,000 per life-year gained.

In a separate analysis of fecal immunochemical testing, a less-demanding alternative to colonoscopy, the optimal screening strategy was an annual test between the age of 35 and 75 years for nontransplant cystic fibrosis patients, for an ICER of $47,000 per life-year gained and a CRC mortality reduction of 78%. The best strategy for transplant patients was once a year between the ages of 30 and 60, which reduced CRC mortality by 77% at an ICER of $86,000 per life-year gained. While fecal immunochemical testing may be more cost effective than colonoscopy, “specific evidence of its performance in the cystic fibrosis population is required before considering this screening modality,” the investigators noted.

“This study indicates that there is benefit to earlier CRC screening in the cystic fibrosis population and [that it] can be done at acceptable costs,” the investigators wrote. “The findings of this analysis support clinicians, researchers, and policy makers who aim to define a tailored CRC screening for individuals with cystic fibrosis in the United States.”

The study was funded by the Cystic Fibrosis Foundation, the Cancer Intervention and Surveillance Modeling Network consortium, and Memorial Sloan Kettering Cancer Center. The investigators reported no conflicts of interest.

Help your patients understand what do expect during and how to prepare for a colonoscopy by sharing AGA’s patient education at https://www.gastro.org/practice-guidance/gi-patient-center/topic/colonoscopy.

[email protected]

SOURCE: Gini A et al. Gastroenterology. 2017 Dec 27. doi: 10.1053/j.gastro.2017.12.011.

A new clinical practice guideline for the treatment of luminal Crohn’s disease (CD) in children has been released by the Canadian Association of Gastroenterology (CAG).

The new guideline provides evidence-based recommendations regarding optimal medical treatment strategies for achieving clinical remission based on a multi-item assessment of disease activity in pediatric patients with luminal CD. The guideline does not address surgical management, diagnosis, psychosocial therapies, preventative health considerations, or growth monitoring.

“The implications of inadequately treated CD are of particular importance in children because of the potentially serious and irreversible consequences,” wrote David R. Mack, MD, of the University of Ottawa and associates. Dr. Mack is the lead author of the pediatric practice guideline copublished in Gastroenterology and the Journal of the Canadian Association of Gastroenterology.

The consensus group reached its recommendations based on a systematic review of the literature for studies related to the medical treatment of pediatric CD. The majority of studies were randomized trials conducted in adults with CD.

“Evidence of efficacy of specific treatments in achieving mucosal healing is limited; therefore, “complete” or “deep” remission (clinical remission plus mucosal healing) was not the chosen primary outcome,” the guideline authors wrote.

The panel recommended that corticosteroids can be used as induction therapy in children with moderate to severe disease. Moreover, budesonide may be an appropriate alternative for induction therapy in patients with mild to moderate CD.

In contrast, the group recommended against the use of corticosteroids as maintenance therapy, largely because of adverse events reported with long-term use.

At diagnosis or initial stages of severe disease, as well as in patients who have failed with immunosuppressant and corticosteroid induction strategies, enteral nutrition should be used exclusively for induction therapy. In addition, anti–tumor necrosis factor biologics are an appropriate option for induction and maintenance therapy in these patients, according to the guideline.

“The group recommended against the use of oral 5-aminosalicylate for induction or maintenance therapy in patients with moderate disease, and recommended against thiopurines for induction therapy,” they wrote.

With respect to cannabis-based products, the panel made a strong recommendation against the use of these agents in all pediatric patients.

In terms of assessment, the team recommended that patients in clinical remission receiving methotrexate or a thiopurine agent as maintenance therapy should be evaluated for mucosal healing within 1 year of therapy initiation.

No consensus was reached on the adjuvant use of immunosuppressants during initiation therapy with a biologic drug, but the consensus panel recommended against the use of thiopurine combinations in male patients. Furthermore, no consensus was reached on the role of vedolizumab or antibiotics for induction or maintenance therapy, methotrexate for induction therapy, and the function of aminosalicylates in patients with mild CD.

The panel highlighted the importance of incorporating patient perspectives into treatment decision making.

“It is hoped that the available information will enhance the discussion between the clinician and the patient and enable the patient to make an evidence-based informed decision.”

The expert consensus was made up of 15 voting members that consisted of pediatric gastroenterologists throughout the United States and Canada, with expertise in several domains, including clinical epidemiology, nutrition, health services research, and patient engagement.

Quality of evidence and risk of bias was assessed using the GRADE (Grading of Recommendation Assessment, Development and Evaluation) criteria. The quality of evidence for each consensus statement was denoted as either high, moderate, low, or very low, based on the criteria.

The consensus statements were finalized at an in-person meeting conducted in Toronto in October 2017.

The guideline was supported through grant funding provided by AbbVie and Takeda. The authors reported financial affiliations with AbbVie and Takeda, as well as Janssen, Nestle Health Sciences, Shire, and several others.

SOURCE: Mack DR et al. Gastroenterology. 2019. doi: 10.1053/j.gastro.2019.03.022.

A new clinical practice guideline for the treatment of luminal Crohn’s disease (CD) in children has been released by the Canadian Association of Gastroenterology (CAG).

The new guideline provides evidence-based recommendations regarding optimal medical treatment strategies for achieving clinical remission based on a multi-item assessment of disease activity in pediatric patients with luminal CD. The guideline does not address surgical management, diagnosis, psychosocial therapies, preventative health considerations, or growth monitoring.

“The implications of inadequately treated CD are of particular importance in children because of the potentially serious and irreversible consequences,” wrote David R. Mack, MD, of the University of Ottawa and associates. Dr. Mack is the lead author of the pediatric practice guideline copublished in Gastroenterology and the Journal of the Canadian Association of Gastroenterology.

The consensus group reached its recommendations based on a systematic review of the literature for studies related to the medical treatment of pediatric CD. The majority of studies were randomized trials conducted in adults with CD.

“Evidence of efficacy of specific treatments in achieving mucosal healing is limited; therefore, “complete” or “deep” remission (clinical remission plus mucosal healing) was not the chosen primary outcome,” the guideline authors wrote.

The panel recommended that corticosteroids can be used as induction therapy in children with moderate to severe disease. Moreover, budesonide may be an appropriate alternative for induction therapy in patients with mild to moderate CD.

In contrast, the group recommended against the use of corticosteroids as maintenance therapy, largely because of adverse events reported with long-term use.

At diagnosis or initial stages of severe disease, as well as in patients who have failed with immunosuppressant and corticosteroid induction strategies, enteral nutrition should be used exclusively for induction therapy. In addition, anti–tumor necrosis factor biologics are an appropriate option for induction and maintenance therapy in these patients, according to the guideline.

“The group recommended against the use of oral 5-aminosalicylate for induction or maintenance therapy in patients with moderate disease, and recommended against thiopurines for induction therapy,” they wrote.

With respect to cannabis-based products, the panel made a strong recommendation against the use of these agents in all pediatric patients.

In terms of assessment, the team recommended that patients in clinical remission receiving methotrexate or a thiopurine agent as maintenance therapy should be evaluated for mucosal healing within 1 year of therapy initiation.

No consensus was reached on the adjuvant use of immunosuppressants during initiation therapy with a biologic drug, but the consensus panel recommended against the use of thiopurine combinations in male patients. Furthermore, no consensus was reached on the role of vedolizumab or antibiotics for induction or maintenance therapy, methotrexate for induction therapy, and the function of aminosalicylates in patients with mild CD.

The panel highlighted the importance of incorporating patient perspectives into treatment decision making.

“It is hoped that the available information will enhance the discussion between the clinician and the patient and enable the patient to make an evidence-based informed decision.”

The expert consensus was made up of 15 voting members that consisted of pediatric gastroenterologists throughout the United States and Canada, with expertise in several domains, including clinical epidemiology, nutrition, health services research, and patient engagement.

Quality of evidence and risk of bias was assessed using the GRADE (Grading of Recommendation Assessment, Development and Evaluation) criteria. The quality of evidence for each consensus statement was denoted as either high, moderate, low, or very low, based on the criteria.

The consensus statements were finalized at an in-person meeting conducted in Toronto in October 2017.

The guideline was supported through grant funding provided by AbbVie and Takeda. The authors reported financial affiliations with AbbVie and Takeda, as well as Janssen, Nestle Health Sciences, Shire, and several others.

SOURCE: Mack DR et al. Gastroenterology. 2019. doi: 10.1053/j.gastro.2019.03.022.

A new clinical practice guideline for the treatment of luminal Crohn’s disease (CD) in children has been released by the Canadian Association of Gastroenterology (CAG).

The new guideline provides evidence-based recommendations regarding optimal medical treatment strategies for achieving clinical remission based on a multi-item assessment of disease activity in pediatric patients with luminal CD. The guideline does not address surgical management, diagnosis, psychosocial therapies, preventative health considerations, or growth monitoring.

“The implications of inadequately treated CD are of particular importance in children because of the potentially serious and irreversible consequences,” wrote David R. Mack, MD, of the University of Ottawa and associates. Dr. Mack is the lead author of the pediatric practice guideline copublished in Gastroenterology and the Journal of the Canadian Association of Gastroenterology.

The consensus group reached its recommendations based on a systematic review of the literature for studies related to the medical treatment of pediatric CD. The majority of studies were randomized trials conducted in adults with CD.

“Evidence of efficacy of specific treatments in achieving mucosal healing is limited; therefore, “complete” or “deep” remission (clinical remission plus mucosal healing) was not the chosen primary outcome,” the guideline authors wrote.

The panel recommended that corticosteroids can be used as induction therapy in children with moderate to severe disease. Moreover, budesonide may be an appropriate alternative for induction therapy in patients with mild to moderate CD.

In contrast, the group recommended against the use of corticosteroids as maintenance therapy, largely because of adverse events reported with long-term use.

At diagnosis or initial stages of severe disease, as well as in patients who have failed with immunosuppressant and corticosteroid induction strategies, enteral nutrition should be used exclusively for induction therapy. In addition, anti–tumor necrosis factor biologics are an appropriate option for induction and maintenance therapy in these patients, according to the guideline.

“The group recommended against the use of oral 5-aminosalicylate for induction or maintenance therapy in patients with moderate disease, and recommended against thiopurines for induction therapy,” they wrote.

With respect to cannabis-based products, the panel made a strong recommendation against the use of these agents in all pediatric patients.

In terms of assessment, the team recommended that patients in clinical remission receiving methotrexate or a thiopurine agent as maintenance therapy should be evaluated for mucosal healing within 1 year of therapy initiation.

No consensus was reached on the adjuvant use of immunosuppressants during initiation therapy with a biologic drug, but the consensus panel recommended against the use of thiopurine combinations in male patients. Furthermore, no consensus was reached on the role of vedolizumab or antibiotics for induction or maintenance therapy, methotrexate for induction therapy, and the function of aminosalicylates in patients with mild CD.

The panel highlighted the importance of incorporating patient perspectives into treatment decision making.

“It is hoped that the available information will enhance the discussion between the clinician and the patient and enable the patient to make an evidence-based informed decision.”

The expert consensus was made up of 15 voting members that consisted of pediatric gastroenterologists throughout the United States and Canada, with expertise in several domains, including clinical epidemiology, nutrition, health services research, and patient engagement.

Quality of evidence and risk of bias was assessed using the GRADE (Grading of Recommendation Assessment, Development and Evaluation) criteria. The quality of evidence for each consensus statement was denoted as either high, moderate, low, or very low, based on the criteria.

The consensus statements were finalized at an in-person meeting conducted in Toronto in October 2017.

The guideline was supported through grant funding provided by AbbVie and Takeda. The authors reported financial affiliations with AbbVie and Takeda, as well as Janssen, Nestle Health Sciences, Shire, and several others.

SOURCE: Mack DR et al. Gastroenterology. 2019. doi: 10.1053/j.gastro.2019.03.022.

The Canadian Association of Gastroenterology has released a new clinical practice guideline for the treatment of luminal Crohn’s disease (CD) in adults.

“In the last decade, treatment paradigms have changed, recognizing that certain clinical parameters carry an increased risk of progressive and disabling disease,” wrote Remo Panaccione, MD, of the University of Calgary (Canada) and collaborators. Dr. Panaccione is the lead author of this practice guideline copublished in Clinical Gastroenterology and Hepatology and the Journal of the Canadian Association of Gastroenterology.

The expert consensus panel consisted of 20 voting members, including both academic and community gastroenterologists, in addition to a specialist nurse practitioner. Other nonvoting members included two GRADE experts, lay observers, and a patient representative.

The panel systematically reviewed the body of literature for studies related to the management of CD in adults. After applying the search criteria, the team found that the majority of evidence was extracted from systematic reviews and meta-analyses of randomized trials.

Quality of evidence and risk of bias was assessed using the GRADE (Grading of Recommendation Assessment, Development and Evaluation) methodology. The quality of evidence for each consensus statement was classified as either high, moderate, low, or very low, based on the methodology’s criteria.

The consensus statements were finalized at a face-to-face meeting in Toronto held in September 2016. Prior to completion, a web-based system was used to allow for anonymous voting on level of agreement for each consensus statement.

The new guideline provides evidence-based recommendations about optimal treatment approaches for patients with mild to severe active luminal CD in an ambulatory setting, with particular focus on six major drug classes, including corticosteroids, biologic therapies, immunosuppressants, 5-aminosalicylate, antibiotics, and other therapies.

The consensus group recommended against the use of 5-aminosalicylate or antibiotics as induction or maintenance treatment strategies. Alternatively, they suggested that corticosteroids, including budesonide, could be used as induction therapy, but not as maintenance therapy.

“Parenteral methotrexate was proposed for induction and maintenance therapy in patients with corticosteroid-dependent CD,” they wrote.

With respect to immunosuppressive therapy, thiopurine agents could be an appropriate option for maintenance therapy in certain low-risk patients, but were not recommended as induction therapy, according to the guideline.

In patients who fail with conventional induction therapies, Dr. Panaccione and colleagues recommended that biological treatments, including ustekinumab, vedolizumab, and anti–tumor necrosis factor agents, could be used. No consensus was reached on the concomitant use of immunosuppressants and biologics.

In recent years, an increasing amount of evidence has emphasized the importance of mucosal healing as a key goal of therapy. In particular, the use of some therapies can result in mucosal healing and symptomatic improvement in certain patients with luminal CD.

In addition, the authors explained that mucosal healing has been linked to better clinical outcomes over the short and long term. As a result, the recommendations in the guideline target complete remission, defined as both endoscopic and symptomatic remission.

“The outcome assessed in most randomized controlled trials (RCTs) has been either symptomatic remission or symptomatic response, with only more contemporary clinical trials including endoscopic outcomes,” the guideline authors wrote.

For this reason, the GRADE criteria–based quality of evidence for some of the consensus statements had to be lowered, they noted.

The panel acknowledged the importance of incorporating patient perspectives into treatment decision making; however, they reported that many gaps in clinical practice still remain.

“In many instances, factors that influence patient decisions relating to therapy choice and goals of therapy are not the same as those of the treating clinician,” they wrote. “[Current] surveys indicate a discrepancy between patient and physician treatment goals.”

In response, the guideline authors highlighted the importance of improved patient-physician collaboration and patient education.

The guideline was supported through grant funding provided by AbbVie, Janssen, Pfizer, and Takeda. The authors reported financial affiliations with AbbVie, Amgen, Baxter, Janssen, Shire, Takeda, and several others.
 

SOURCE: Panaccione R et al. Clin Gastroenterol Hepatol. 2019 Mar 7. doi: 10.1016/j.cgh.2019.02.043.

The Canadian Association of Gastroenterology has released a new clinical practice guideline for the treatment of luminal Crohn’s disease (CD) in adults.

“In the last decade, treatment paradigms have changed, recognizing that certain clinical parameters carry an increased risk of progressive and disabling disease,” wrote Remo Panaccione, MD, of the University of Calgary (Canada) and collaborators. Dr. Panaccione is the lead author of this practice guideline copublished in Clinical Gastroenterology and Hepatology and the Journal of the Canadian Association of Gastroenterology.

The expert consensus panel consisted of 20 voting members, including both academic and community gastroenterologists, in addition to a specialist nurse practitioner. Other nonvoting members included two GRADE experts, lay observers, and a patient representative.

The panel systematically reviewed the body of literature for studies related to the management of CD in adults. After applying the search criteria, the team found that the majority of evidence was extracted from systematic reviews and meta-analyses of randomized trials.

Quality of evidence and risk of bias was assessed using the GRADE (Grading of Recommendation Assessment, Development and Evaluation) methodology. The quality of evidence for each consensus statement was classified as either high, moderate, low, or very low, based on the methodology’s criteria.

The consensus statements were finalized at a face-to-face meeting in Toronto held in September 2016. Prior to completion, a web-based system was used to allow for anonymous voting on level of agreement for each consensus statement.

The new guideline provides evidence-based recommendations about optimal treatment approaches for patients with mild to severe active luminal CD in an ambulatory setting, with particular focus on six major drug classes, including corticosteroids, biologic therapies, immunosuppressants, 5-aminosalicylate, antibiotics, and other therapies.

The consensus group recommended against the use of 5-aminosalicylate or antibiotics as induction or maintenance treatment strategies. Alternatively, they suggested that corticosteroids, including budesonide, could be used as induction therapy, but not as maintenance therapy.

“Parenteral methotrexate was proposed for induction and maintenance therapy in patients with corticosteroid-dependent CD,” they wrote.

With respect to immunosuppressive therapy, thiopurine agents could be an appropriate option for maintenance therapy in certain low-risk patients, but were not recommended as induction therapy, according to the guideline.

In patients who fail with conventional induction therapies, Dr. Panaccione and colleagues recommended that biological treatments, including ustekinumab, vedolizumab, and anti–tumor necrosis factor agents, could be used. No consensus was reached on the concomitant use of immunosuppressants and biologics.

In recent years, an increasing amount of evidence has emphasized the importance of mucosal healing as a key goal of therapy. In particular, the use of some therapies can result in mucosal healing and symptomatic improvement in certain patients with luminal CD.

In addition, the authors explained that mucosal healing has been linked to better clinical outcomes over the short and long term. As a result, the recommendations in the guideline target complete remission, defined as both endoscopic and symptomatic remission.

“The outcome assessed in most randomized controlled trials (RCTs) has been either symptomatic remission or symptomatic response, with only more contemporary clinical trials including endoscopic outcomes,” the guideline authors wrote.

For this reason, the GRADE criteria–based quality of evidence for some of the consensus statements had to be lowered, they noted.

The panel acknowledged the importance of incorporating patient perspectives into treatment decision making; however, they reported that many gaps in clinical practice still remain.

“In many instances, factors that influence patient decisions relating to therapy choice and goals of therapy are not the same as those of the treating clinician,” they wrote. “[Current] surveys indicate a discrepancy between patient and physician treatment goals.”

In response, the guideline authors highlighted the importance of improved patient-physician collaboration and patient education.

The guideline was supported through grant funding provided by AbbVie, Janssen, Pfizer, and Takeda. The authors reported financial affiliations with AbbVie, Amgen, Baxter, Janssen, Shire, Takeda, and several others.
 

SOURCE: Panaccione R et al. Clin Gastroenterol Hepatol. 2019 Mar 7. doi: 10.1016/j.cgh.2019.02.043.

The Canadian Association of Gastroenterology has released a new clinical practice guideline for the treatment of luminal Crohn’s disease (CD) in adults.

“In the last decade, treatment paradigms have changed, recognizing that certain clinical parameters carry an increased risk of progressive and disabling disease,” wrote Remo Panaccione, MD, of the University of Calgary (Canada) and collaborators. Dr. Panaccione is the lead author of this practice guideline copublished in Clinical Gastroenterology and Hepatology and the Journal of the Canadian Association of Gastroenterology.

The expert consensus panel consisted of 20 voting members, including both academic and community gastroenterologists, in addition to a specialist nurse practitioner. Other nonvoting members included two GRADE experts, lay observers, and a patient representative.

The panel systematically reviewed the body of literature for studies related to the management of CD in adults. After applying the search criteria, the team found that the majority of evidence was extracted from systematic reviews and meta-analyses of randomized trials.

Quality of evidence and risk of bias was assessed using the GRADE (Grading of Recommendation Assessment, Development and Evaluation) methodology. The quality of evidence for each consensus statement was classified as either high, moderate, low, or very low, based on the methodology’s criteria.

The consensus statements were finalized at a face-to-face meeting in Toronto held in September 2016. Prior to completion, a web-based system was used to allow for anonymous voting on level of agreement for each consensus statement.

The new guideline provides evidence-based recommendations about optimal treatment approaches for patients with mild to severe active luminal CD in an ambulatory setting, with particular focus on six major drug classes, including corticosteroids, biologic therapies, immunosuppressants, 5-aminosalicylate, antibiotics, and other therapies.

The consensus group recommended against the use of 5-aminosalicylate or antibiotics as induction or maintenance treatment strategies. Alternatively, they suggested that corticosteroids, including budesonide, could be used as induction therapy, but not as maintenance therapy.

“Parenteral methotrexate was proposed for induction and maintenance therapy in patients with corticosteroid-dependent CD,” they wrote.

With respect to immunosuppressive therapy, thiopurine agents could be an appropriate option for maintenance therapy in certain low-risk patients, but were not recommended as induction therapy, according to the guideline.

In patients who fail with conventional induction therapies, Dr. Panaccione and colleagues recommended that biological treatments, including ustekinumab, vedolizumab, and anti–tumor necrosis factor agents, could be used. No consensus was reached on the concomitant use of immunosuppressants and biologics.

In recent years, an increasing amount of evidence has emphasized the importance of mucosal healing as a key goal of therapy. In particular, the use of some therapies can result in mucosal healing and symptomatic improvement in certain patients with luminal CD.

In addition, the authors explained that mucosal healing has been linked to better clinical outcomes over the short and long term. As a result, the recommendations in the guideline target complete remission, defined as both endoscopic and symptomatic remission.

“The outcome assessed in most randomized controlled trials (RCTs) has been either symptomatic remission or symptomatic response, with only more contemporary clinical trials including endoscopic outcomes,” the guideline authors wrote.

For this reason, the GRADE criteria–based quality of evidence for some of the consensus statements had to be lowered, they noted.

The panel acknowledged the importance of incorporating patient perspectives into treatment decision making; however, they reported that many gaps in clinical practice still remain.

“In many instances, factors that influence patient decisions relating to therapy choice and goals of therapy are not the same as those of the treating clinician,” they wrote. “[Current] surveys indicate a discrepancy between patient and physician treatment goals.”

In response, the guideline authors highlighted the importance of improved patient-physician collaboration and patient education.

The guideline was supported through grant funding provided by AbbVie, Janssen, Pfizer, and Takeda. The authors reported financial affiliations with AbbVie, Amgen, Baxter, Janssen, Shire, Takeda, and several others.
 

SOURCE: Panaccione R et al. Clin Gastroenterol Hepatol. 2019 Mar 7. doi: 10.1016/j.cgh.2019.02.043.