Effect of ombitasvir/paritaprevir/ritonavir + dasabuvir regimen on health‐related quality of life for patients with hepatitis C
2018
BACKGROUND & AIMS:This study analyses health-related quality of life data from 8 randomized clinical trials using ombitasvir/paritaprevir/ritonavir and dasabuvir ± ribavirin to investigate: (i) the impact of the treatment vs placebo during treatment on health-related quality of life; (ii) the sustainability of such treatment effect after 12-week treatment period; and (iii) if results from (i) and (ii) differ in subgenotypes 1a vs 1b. METHODS:Six registration trials and 2 post-approval trials were pooled and analysed using longitudinal mixed models to estimate the effect of ombitasvir/paritaprevir/ritonavir and dasabuvir ± ribavirin on health-related quality of life outcomes adjusting for baseline scores, as well as patient demographics and clinical characteristics. RESULTS:Patients treated with ribavirin-free ombitasvir/paritaprevir/ritonavir and dasabuvir regimen reported statistically significant increase in health-related quality of life outcomes as compared to placebo patients. While ombitasvir/paritaprevir/ritonavir and dasabuvir + ribavirin treatment saw statistically significant decline in health-related quality of life outcomes during treatment vs baseline and placebo, effect on health-related quality of life outcomes associated with ribavirin did not persist in the post-treatment period for ombitasvir/paritaprevir/ritonavir and dasabuvir patients followed for up to 52 weeks. The analysis also found Genotype 1b patients reported greater improvements in health-related quality of life as compared to genotype 1a patients. CONCLUSIONS:During the active treatment period, small but statistically significant decrements in health-related quality of life outcomes were observed potentially driven by ribavirin, which were not sustained during the post-treatment follow-up period. Differences were observed by patient subgenotype, where health-related quality of life improvements were consistently higher for genotype 1b patients as compared to genotype 1a patients.
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