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Revista Colombiana de Gastroenterologia

Print version ISSN 0120-9957

Abstract

PINO-MARIN, Daniel; GIRALDO, Newar  and  AMARILES, Pedro. A Structured Review of Approaches for Establishing and Evaluating Clinical Relevance of Drug Interactions in Patients with Hepatitis C Virus Genotype 1. Rev Col Gastroenterol [online]. 2016, vol.31, n.2, pp.119-134. ISSN 0120-9957.

Objective: Our objective was to establish and evaluate the clinical relevance of drug interactions in the treatment of patients with hepatitis C genotype 1. Method: We searched for articles published in English and Spanish from December 2004 to December 2014 in PubMed/MedLine. We used the following Medical Subject Headings (MESH): Hepatitis C and drug interactions OR herb-drug interactions OR food-drug interactions studies performed in humans. We conducted an additional complementary search for articles published in the same period about interactions of anti-retroviral and hepatitis C in humans using the following MESH: (Anti-retroviral agents AND Hepatitis C and drug interactions OR herb-drug interactions OR food -drug interactions). The clinical relevance of drug interactions was defined and evaluated based on the probability of occurrence and severity of interaction. Results: We identified 228 articles. Of these, it was possible to read the full text of 212. Of these, 62 contributed interactions which allowed us to identify 128 pairs of drug interactions, of which 120 (93.7%) were pharmacokinetic and 8 (6.3%) pharmacodynamic. Of these 128 pairs, two (1.6%) were rated Level 1: 110 (53.7%) were Level 2, 16 (7.8%) were Level 3, and 0 (0%) were Level 4. In addition, 78 pairs were identified that were grouped as interactions with evidence of absence of clinical significance. Conclusions: More than 90% of clinically relevant drug interactions are pharmacokinetic interactions associated with hepatic metabolism. Telaprevir has the greatest number of interactions

Keywords : Drug Interactions; Antiretrovirals; Hepatitis C; boceprevir; telaprevir.

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