Help
Subscribe


GastroHep.com - the global online resource for all aspects of gastroenterology, hepatology and endoscopy

 29 May 2016

Advanced search
GastroHep.com - the global online resource for all aspects of gastroenterology, hepatology and endoscopy Profile of Roy Pounder

Home

News  
Journals
Review Articles
Slide Atlas
Video Clips
Online Books
Advanced Digestive Endoscopy
Classical Cases
Conference Diary
PubMed
International GH Links
USA GH Links
National GH Links
National GI Societies
Other Useful Links




Emails on Gastroenterology and Hepatology
the National AIDS Treatment Advocacy Project
Visit the gastroenterology section of the EUMS

News

Treatment of HCV infection by targeting microRNA

This week's issue of the New England Journal of Medicine investigates the treatment of HCV infection by targeting microRNA.

News image

The stability and propagation of hepatitis C virus (HCV) is dependent on a functional interaction between the HCV genome and liver-expressed microRNA-122 (miR-122).

Miravirsen is a locked nucleic acid–modified DNA phosphorothioate antisense oligonucleotide that sequesters mature miR-122 in a highly stable heteroduplex, thereby inhibiting its function.
 
Dr Janssen and colleagues from Canada performed a phase 2a study at 7 international sites, the team evaluated the safety and efficacy of miravirsen in 36 patients with chronic HCV genotype 1 infection.

Miravirsen resulted in a dose-dependent reduction in HCV RNA levels
New England Journal of Medicine

The patients were randomly assigned to receive 5 weekly subcutaneous injections of miravirsen at doses of 3 mg, 5 mg, or 7 mg per kilogram of body weight or placebo over a 29-day period.

The patients were followed until 18 weeks after randomization.
 
Miravirsen resulted in a dose-dependent reduction in HCV RNA levels that endured beyond the end of active therapy.

In the miravirsen groups, the mean maximum reduction in HCV RNA level from baseline was 1.2 for patients receiving 3 mg per kilogram, 2.9 for those receiving 5 mg per kilogram, and 3.0 for those receiving 7 mg per kilogram, as compared with a reduction of 0.4 in the placebo group.

During 14 weeks of follow-up after treatment, HCV RNA was not detected in 1 patient in the 5-mg group, and in 4 patients in the 7-mg group.

The researchers observed no dose-limiting adverse events, and no escape mutations in the miR-122 binding sites of the HCV genome.
 
Dr Janssen's team concludes, "The use of miravirsen in patients with chronic HCV genotype 1 infection showed prolonged dose-dependent reductions in HCV RNA levels without evidence of viral resistance."

NEJM 2013; 368: 1685-1694
03 May 2013

Go to top of page Email this page Email this page to a colleague

 27 May 2016 
Hepatocellular carcinoma in chronic Hep B patients
 27 May 2016 
Obstructive sleep apnea and NASH
 27 May 2016 
Risk stratification in acute upper GI bleeding
 26 May 2016 
Education booklet for colonoscopy bowel preparation
 26 May 2016 
Uncomplicated diverticulitis in outpatients
 26 May 2016 
Direct-acting antivirals in Hep C cirrhosis
 25 May 2016 
Preventing NSAID-associated GI toxicity
 25 May 2016 
Recurrence of Barrett’s after successful endoscopic therapy
 25 May 2016 
PPIs and NSAID-induced small bowel injury
 24 May 2016 
Fecal inflammatory markers in Crohn's
 24 May 2016 
Depression and IBD recurrence
 24 May 2016 
New therapies for NASH
 23 May 2016 
Risk factors for peptic ulcer bleeding outcomes
 23 May 2016 
Liver transplantation for hepatocellular carcinoma
 23 May 2016 
Cancer after colectomy in IBD
 20 May 2016 
Biomarker for colorectal cancer diagnosis
 20 May 2016 
Prognostic score for hepatic venous outflow obstruction
 20 May 2016 
Treatment for uncomplicated acute diverticulitis
 19 May 2016 
Probiotics and H. pylori eradication
 19 May 2016 
Impaired skeletal health in atrophic gastritis
 19 May 2016 
Predicting outcome in ulcerative colitis
 18 May 2016 
Erectile dysfunction in IBD
 18 May 2016 
Acute GERD and esophageal histologic changes
 18 May 2016 
Surgical fundoplication for GERD 
 17 May 2016 
Mucosal dysbiosis in Crohn's disease
 17 May 2016 
Vitamin D level and clinical status in IBD 
 17 May 2016 
Inpatient costs for IBD and acute pancreatitis
 16 May 2016 
Outcomes of postcolonoscopy colorectal cancers
 16 May 2016 
Therapy for Crohn's in a Medicaid population
 16 May 2016 
C. difficile in ulcerative colitis patients
 13 May 2016 
Parkinson's disease and IBD
 13 May 2016 
Non-traditional heart disease risk factors in NAFLD
 13 May 2016 
Inactivated oral cholera vaccine
 12 May 2016 
Gestational diabetes mellitus and NAFLD
 12 May 2016 
Impact of Crohn's in the USA
 12 May 2016 
Ozanimod induction and ulcerative colitis
 11 May 2016 
Anti-TNF discontinuation in IBD
 11 May 2016 
Age and disease presentation with Crohn's disease
 11 May 2016 
Prognosis after colorectal cancer resection
 10 May 2016 
Gluten-free diet in patients with IBS-diarrhea
 10 May 2016 
Noninvasive test for IBD
 10 May 2016 
Digital health for gastroenterology
 09 May 2016 
Diarrheal infections in adults
 09 May 2016 
Quality improvement initiative and readmission for cirrhosis
 09 May 2016 
Coffee or tea and the risk of Barrett's
 06 May 2016 
Recurrent pancreatitis after acute pancreatitis
 06 May 2016 
Risk factors in peptic ulcer bleeding
 06 May 2016 
Managing acute lower GI bleeding
 05 May 2016 
Chemoradiotherapy vs chemotherapy for pancreatic cancer
 05 May 2016 
Genetics in early-early-onset IBD
 05 May 2016 
Reductions in quality of screening colonoscopies
 04 May 2016 
Anti-TNF therapy for IBD
 04 May 2016 
Bismuth and H. pylori eradication
 04 May 2016 
Chromoendoscopy vs colonoscopy for dysplasia in colitis
 03 May 2016 
Vedolizumab for IBD
 03 May 2016 
Surgery vs medical therapy for GERD
 03 May 2016 
PPIs and gut microbiota
 02 May 2016 
Genetic variant that increase NAFLD risk
 02 May 2016 
Resection of colorectal polyps
 02 May 2016 
Mycophenolate mofetil as first-line treatment of autoimmune hepatitis

Blackwell Publishing


GastroHep.com is a Blackwell Publishing registered trademark
© 2016 Wiley-Blackwell and GastroHep.com and contributors
Privacy Statement
Disclaimer
About Us