1.
Rhabdomyolysis as a clinical manifestation of association with ciprofibrate, sirolimus, cyclosporine, and pegylated interferon-α in liver-transplanted patients: a case report and literature review.
dos Santos, AG, Guardia, AC, Pereira, TS, Ataíde, EC, Mei, Md, Udo, ME, Boin, IF, Stucchi, RS
Transplantation proceedings. 2014;(6):1887-8
Abstract
BACKGROUND Rhabdomyolysis is a syndrome characterized by impaired metabolic integrity of myocytes, causing the release of intracellular constituents into the circulation, and can be a serious side effect of drug intake. CASE REPORT This report describes a unique case of rabdomyolysis secondary in which ciprofibrate, sirolimus, cyclosporine, and pegylated interferon-α in a liver transplant patient was used. A 47-year-old male liver transplant recipient in 2009, who had hepatitis C and incidental hepatocellular carcinoma, underwent immunosuppressive therapy (cyclosporine and sirolimus). The patient is currently in treatment for viral recurrence with pegylated interferon-α and ribavirin; he had a history of hypertriglyceridemia treated with ciprofibrate. He had development of severe and generalized myalgia and fever after the eighth application of pegylated interferon-α and increasing doses of cyclosporine. Laboratorial tests showed acute renal failure and significant increase in creatine kinase. Rhabdomyolysis secondary to interaction of fibrate-cyclosporine-pegylated interferon-α was postulated. CONCLUSIONS Medical professionals should be aware of possible drug interactions and should monitor patients receiving these drugs.
2.
Hepatic steatosis in chronic hepatitis C: baseline host and viral characteristics and influence on response to therapy with peginterferon alpha-2a plus ribavirin.
Reddy, KR, Govindarajan, S, Marcellin, P, Bernstein, D, Dienstag, JL, Bodenheimer, H, Rakela, J, Messinger, D, Schmidt, G, Ackrill, A, et al
Journal of viral hepatitis. 2008;(2):129-36
Abstract
Hepatic steatosis is common in hepatitis C virus (HCV)-infected patients and may be associated with the metabolic syndrome. We studied steatosis in patients treated with peginterferonalpha-2a plus ribavirin. Forty-five of 207 patients (22%) had >5% hepatic steatosis at baseline. Significantly more patients with steatosis than without were HCV genotype 3 (51%vs 14%; P < 0.0001) had higher HCV-RNA (P = 0.0045), body weight (P = 0.0176), body mass index (BMI, P = 0.0352) and serum triglycerides (TG) (P = 0.0364), hypertriglyceridaemia (P = 0.0009), elevated blood pressure/history of hypertension (P = 0.0229) and lower cholesterol (P = 0.0009). Significant steatosis predictors were genotype 3 (OR 9.04, 95% CI 3.85-21.21, P < 0.0001), HCV-RNA (OR 2.96, 1.49-5.88, P = 0.0019) and triglycerides (OR 1.06, 1.02-1.11, P = 0.0071). In genotype 3 patients, HCV-RNA was the only significant predictor (OR 11.15, 2.60-47.81, P = 0.0012). In non-genotype 3 patients, hypertriglyceridaemia was the only significant predictor (OR 1.07, 1.02-1.12, P = 0.0041). 134 of 207 patients (65%) achieved an sustained virological response (SVR) with peginterferon alpha-2a plus ribavirin, similar to the overall response rate. In genotype 3 patients with an SVR, steatosis decreased from 48% to 13% (baseline to end-point). No change was seen in the steatosis rate in non-genotype 3 patients with an SVR. This large and comprehensive analysis of a large data base from a multinational trial further adds to the observations that chronic HCV is associated with hepatic steatosis in approximately a fifth of patients. Further, features of the metabolic syndrome are associated with hepatic steatosis in most of these patients. Steatosis is significantly more common in genotype 3 compared with other genotypes, and in these patients, an SVR is associated with steatosis clearance.