Daniel Caldeira1,2,3, Filipe B Rodrigues4,5, Marta M Duarte6, Carmelo Sterrantino6, Márcio Barra4, Nilza Gonçalves4,5, Fausto J Pinto7, Joaquim J Ferreira4,5, João Costa4,5,6,8. 1. Laboratório de Farmacologia Clínica e Terapêutica, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028, Lisboa, Portugal. dgcaldeira@hotmail.com. 2. Clinical Pharmacology Unit, Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028, Lisboa, Portugal. dgcaldeira@hotmail.com. 3. Cardiology Department, Hospital Garcia de Orta, Almada, Portugal. dgcaldeira@hotmail.com. 4. Laboratório de Farmacologia Clínica e Terapêutica, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028, Lisboa, Portugal. 5. Clinical Pharmacology Unit, Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028, Lisboa, Portugal. 6. Center for Evidence-Based Medicine (CEMBE), Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028, Lisboa, Portugal. 7. Cardiology Department, Centro Cardiovascular da Universidade de Lisboa (CCUL), Centro Académico Médico de Lisboa (CAML), Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal. 8. Portuguese Collaborating Center of The IberoAmerican Cochrane Network, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.
Abstract
INTRODUCTION: Sofosbuvir is a new direct-acting pyrimidine nucleotide analogue antiviral drug that has shown remarkable efficacy in the treatment of hepatitis C in clinical trials. However, observational anecdotal data have recently suggested an increased risk of serious bradycardia among patients treated with sofosbuvir and amiodarone. OBJECTIVE: We aimed to estimate and characterize the cardiac safety of sofosbuvir by performing a systematic review of randomized controlled trials (RCTs). METHODS: We conducted a systematic review of RCTs (PROSPERO 2016: CRD42016033109) comparing sofosbuvir and non-sofosbuvir regimens in patients with chronic hepatitis C by searching the MEDLINE, Embase, and Cochrane Library databases up to January 2017. Non-published data were obtained from the sofosbuvir marketing authorization holder. Random-effects meta-analysis was performed to derive pooled estimates of relative risks (RRs) and corresponding 95% confidence intervals (CIs). RESULTS: Six trials, enrolling 2346 patients (1625 treated with sofosbuvir), were included. The overall risk of bias across studies was moderate. The risk of reported cardiac events (RR 0.87; 95% CI 0.41-1.85), arrhythmias (RR 0.93; 95% CI 0.34-2.51), bradycardia (RR 0.47; 95% CI 0.04-5.20), and tachycardia (RR 0.91; 95% CI 0.20-4.20) were not significantly different between sofosbuvir and non-sofosbuvir regimens. The risks of reported syncope, presyncope, loss of consciousness, or palpitations were similar among those receiving sofosbuvir regimens and controls. CONCLUSIONS: The pooled data from RCTs did not show an increased risk of cardiac outcomes, including arrhythmias (and bradycardia), among sofosbuvir-treated patients, although the overall quality of the evidence supporting this conclusion was very low. Registration: PROSPERO 2016:CRD42016033109 at http://www.crd.york.ac.uk/PROSPERO/ .
INTRODUCTION:Sofosbuvir is a new direct-acting pyrimidine nucleotide analogue antiviral drug that has shown remarkable efficacy in the treatment of hepatitis C in clinical trials. However, observational anecdotal data have recently suggested an increased risk of serious bradycardia among patients treated with sofosbuvir and amiodarone. OBJECTIVE: We aimed to estimate and characterize the cardiac safety of sofosbuvir by performing a systematic review of randomized controlled trials (RCTs). METHODS: We conducted a systematic review of RCTs (PROSPERO 2016: CRD42016033109) comparing sofosbuvir and non-sofosbuvir regimens in patients with chronic hepatitis C by searching the MEDLINE, Embase, and Cochrane Library databases up to January 2017. Non-published data were obtained from the sofosbuvir marketing authorization holder. Random-effects meta-analysis was performed to derive pooled estimates of relative risks (RRs) and corresponding 95% confidence intervals (CIs). RESULTS: Six trials, enrolling 2346 patients (1625 treated with sofosbuvir), were included. The overall risk of bias across studies was moderate. The risk of reported cardiac events (RR 0.87; 95% CI 0.41-1.85), arrhythmias (RR 0.93; 95% CI 0.34-2.51), bradycardia (RR 0.47; 95% CI 0.04-5.20), and tachycardia (RR 0.91; 95% CI 0.20-4.20) were not significantly different between sofosbuvir and non-sofosbuvir regimens. The risks of reported syncope, presyncope, loss of consciousness, or palpitations were similar among those receiving sofosbuvir regimens and controls. CONCLUSIONS: The pooled data from RCTs did not show an increased risk of cardiac outcomes, including arrhythmias (and bradycardia), among sofosbuvir-treated patients, although the overall quality of the evidence supporting this conclusion was very low. Registration: PROSPERO 2016:CRD42016033109 at http://www.crd.york.ac.uk/PROSPERO/ .
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