Date: 2015-02-26
Type of information: Results
phase: 3
Announcement: results
Company: BMS (USA - NY)
Product: daclatasvir and sofosbuvir
Action
mechanism: direct-acting antiviral agent/nucleotide analog. Sofosbuvir is an oral nucleotide analog inhibitor of the HCV NS5B polymerase enzyme, which plays an essential role in HCV replication. This direct-acting agent interferes directly with the HCV life cycle by suppressing viral replication. Daclatasvir is a NS5A replication complex inhibitor.
Disease: patients with chronic hepatitis C virus (HCV) coinfected with HIV
Therapeutic area: Infectious diseases
Country:
Trial
details: ALLY-2 is a Phase III open-label clinical trial that randomized 151 treatment-naïve and 52 treatment-experienced HCV (genotypes 1-4) patients coinfected with HIV-1 on a broad range of antiretroviral regimens, into 3 cohorts. Among treatment-naïve patients, one cohort received daclatasvir 30, 60, or 90 mg (dose adjusted for concomitant antiretroviral therapy) plus sofosbuvir 400 mg once daily for 12 weeks, and another received the same dosage and combination for 8 weeks. The treatment-experienced cohort also received daclatasvir 30, 60, or 90 mg plus sofosbuvir 400 mg once daily for 12 weeks. Daclatasvir was dose-adjusted to accommodate concomitant antiretrovirals: 30 mg with ritonavir-boosted PIs, 90 mg with NNRTIs except rilpivirine. All cohorts had follow-up through post-treatment week 24. The primary endpoint was the SVR12 rate among genotype 1 treatment-naïve patients after 12 weeks of treatment. Patients with cirrhosis were permitted.
Latest
news: * On February 26, 2015, BMS announced results from ALLY-2, a Phase III clinical trial evaluating the investigational once-daily combination of daclatasvir and sofosbuvir for the treatment of patients with chronic hepatitis C virus (HCV) coinfected with HIV – a patient population that historically has been challenging to treat in large part due to potential drug-drug interactions between the therapy regimens used to treat each infection. Among ALLY-2 patients treated for 12 weeks (treatment-naïve and -experienced), 97% (n=149/153) achieved cure (sustained virologic response 12 weeks after treatment; SVR12). The study met the primary endpoint, with 96% (n=80/83) of treatment-naïve genotype 1 patients achieving SVR12. Treatment with daclatasvir in combination with sofosbuvir in this study showed high SVR rates, with no discontinuations due to adverse events, and no serious adverse events related to study medications throughout the treatment phase. In ALLY-2, high SVR rates occurred among all patients treated for 12 weeks, regardless of prior treatment experience, HCV genotype, cirrhosis status, concurrent combination antiretroviral therapy regimen, or race. African-American patients comprised 34% of study participants; in this patient demographic, SVR12 rates were 98% (n=49/50). ALLY-2 also included an 8-week arm; 38 of 50 treatment-naïve patients with HCV achieved SVR12. However, study investigators concluded that further studies are needed to assess the potential of shorter-duration, all-oral treatment regimens. Additional safety data demonstrated a low rate of Grade 3/4 lab abnormalities in the study: INR (1%), AST (0.5%), Tbili (4%), Lipase (3%).
