@article{SchlevogtBoekerMaussetal.2021, author = {Schlevogt, Bernhard and Boeker, Klaus H. W. and Mauss, Stefan and Klinker, Hartwig and Heyne, Renate and Link, Ralph and Simon, Karl-Georg and Sarrazin, Christoph and Serfert, Yvonne and Manns, Michael P. and Wedemeyer, Heiner}, title = {Weight gain after interferon-free treatment of chronic hepatitis C — results from the German Hepatitis C-Registry (DHC-R)}, series = {Biomedicines}, volume = {9}, journal = {Biomedicines}, number = {10}, issn = {2227-9059}, doi = {10.3390/biomedicines9101495}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-248476}, year = {2021}, abstract = {Chronic hepatitis C can be treated very effectively with direct-acting antivirals (DAA) with only minor side effects compared to an interferon-containing treatment regimen. The significance of metabolic comorbidities after HCV cure is not well defined. This study aims to investigate short- and long-term weight change of patients receiving interferon-free antiviral treatment for chronic hepatitis C. The German Hepatitis C-registry (DHC-R) is a national multicenter real-world cohort. A total of 5111 patients were followed prospectively after DAA treatment for up to 3 years. Weight change compared to baseline was analyzed at end of treatment and at years 1, 2, and 3 after completion of antiviral therapy. Regression analysis was performed to identify baseline predictors for weight change. While there was no relevant mean weight change (-0.2 kg, SD 4.3 kg) at the end of antiviral treatment, weight started to increase during long-term follow-up reaching +1.7 kg (SD 8.0 kg, p < 0.001) compared to baseline at 3 years (follow-up year 3, FU3) after completion of antiviral therapy. 48\%, 31\%, and 22\% of patients had a weight gain greater than 1, 3, and 5 kg at FU3, respectively. During follow-up, a body mass index (BMI) <30 proved to be the only consistent predictor for weight gain. DAA treatment is followed by a substantial weight gain (+3 kg or more) in one-third of the patients during long-term follow-up. Non-obese patients seemed to be most vulnerable to weight gain. The body compartment involved in weight gain as well as the mechanism of weight gain remain to be elucidated.}, language = {en} }