CLINICAL TRIALS PROFILE FOR SOFOSBUVIR
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505(b)(2) Clinical Trials for sofosbuvir
| Trial Type | Trial ID | Title | Status | Sponsor | Phase | Start Date | Summary |
|---|---|---|---|---|---|---|---|
| OTC | NCT03513393 ↗ | Influence of Cola on the Absorption of the HCV Agent Velpatasvir in Combination With PPI Omeprazole. | Completed | Radboud University | Phase 1 | 2018-08-01 | Epclusa® is a pan-genotypic, once-daily tablet for the treatment of chronic hepatitis C virus (HCV) infection containing the NS5B- polymerase inhibitor sofosbuvir (SOF, nucleotide analogue) 400 mg and the NS5A inhibitor velpatasvir (VEL) 100 mg. Velpatasvir has pH dependent absorption. At higher pH the solubility of velpatasvir decreases. It has been shown that in subjects treated with proton pump inhibitors (PPIs) such as omeprazole, the absorption of velpatasvir is reduced by 26-56%, depending on the dose of omeprazole, concomitant food intake, and timing/sequence of velpatasvir vs. omeprazole intake. As a result, concomitant intake of PPIs with velpatasvir is not recommended. For a number of reasons, the prohibition of PPI use with velpatasvir is a clinically relevant problem. First, PPI use is highly frequent in the HCV-infected subject population with prevalences reported up to 40%. Second, PPIs are available as over-the-counter medications and thus can be used by subjects without informing their physician. Third, although HCV therapy is generally well tolerated, gastro-intestinal symptoms such as abdominal pain and nausea are frequently reported, which my lead to PPI use. One solution of this problem could be the use of other acid-reducing agents such as H2-receptor antagonists or antacids. In general, they have a less pronounced effect on intragastric pH, and are considered less effective than PPIs by many patients and physicians. A second solution would be the choice of another HCV agent or combination that is not dependent on low gastric pH for its absorption such as daclatasvir. Daclatasvir, however, is not a pan-genotypic HCV agent and may be less effective against GT 2 and 3 infections than velpatasvir. Second, not all subjects have access to daclatasvir, depending on health insurance company or region where they live. A third solution, and the focus of this COPA study, is to add a glass of the acidic beverage cola at the time of velpatasvir administration in subjects concurrently treated with PPIs. This intervention has been shown to be effective for a number of drugs from other therapeutic classes who all have in common a reduced solubility (and thus reduced absorption) at higher intragastric pH, namely erlotinib, itraconazole, ketoconazole. The advantages of this approach are: (1) only a temporary decrease in gastric pH at the time of cola intake; the rest of the day the PPI will have its therapeutic effect (2) cola is available worldwide (3) the administration of cola can be done irrespective to the timing of PPI use. |
| >Trial Type | >Trial ID | >Title | >Status | >Sponsor | >Phase | >Start Date | >Summary |
All Clinical Trials for sofosbuvir
| Trial ID | Title | Status | Sponsor | Phase | Start Date | Summary |
|---|---|---|---|---|---|---|
| NCT01054729 ↗ | Dose-Ranging Study of Sofosbuvir in Combination With Pegylated Interferon and Ribavirin in Treatment Naïve GT 1 HCV Patients | Completed | Gilead Sciences | Phase 2 | 2010-01-01 | Participants with genotype 1 HCV infection were randomized to 1 of 3 sofosbuvir doses (100 mg, 200 mg, or 400 mg) or matching placebo once daily based upon stratification for IL28B status (CC or CT/TT). Placebo tablets were administered to participants receiving 100 mg active sofosbuvir (3 placebo tablets) and 200 mg active sofosbuvir (2 placebo tablets) in order to maintain the study blind. Participants received sofosbuvir/matching placebo from Day 0 to 27. Participants also received treatment with PEG+RBV starting on Day 0 of the study which continued for 48 weeks. Participants were evaluated for sustained virologic response (SVR) for an additional 24 weeks following completion of study treatment. |
| NCT01188772 ↗ | Sofosbuvir in Combination With Pegylated Interferon and Ribavirin and in Treatment-Naive Hepatitis C-infected Patients | Completed | Gilead Sciences | Phase 2 | 2010-08-01 | Genotype 1: Participants with genotype 1 hepatitis C (HCV) infection were randomized to receive sofosbuvir (GS-7977; PSI-7977) 200 mg or 400 mg, or matching placebo, plus pegylated interferon alfa 2a (PEG) and ribavirin (RBV) for 12 weeks, followed by PEG+RBV for an up to an additional 36 weeks. Randomization was stratified by IL28B status (CC, CT, TT) and HCV RNA level (< 800,000 IU/ml or ≥ 800,000 IU/ml) at baseline. Participants were randomized in a 2:2:1 manner; those who achieved an extended rapid virologic response (eRVR) (HCV RNA < lower limit of detection [15 IU/mL] from Weeks 4 through 12) received an additional 12 weeks of PEG+RBV. Subjects not achieving eRVR received an additional 36 weeks of PEG+RBV. Genotype 2 and 3: Participants with genotype 2 or 3 hepatitis C (HCV) received sofosbuvir 400 mg plus PEG+RBV for 12 weeks. |
| NCT01260350 ↗ | Open-Labeled Study of PSI-7977 and RBV With and Without PEG-IFN in Treatment-Naïve Patients With HCV GT2 or GT3 | Completed | Gilead Sciences | Phase 2 | 2010-12-01 | This study is to assess the safety and tolerability of sofosbuvir (SOF) 400 mg with and without ribavirin (RBV) and/or with and without pegylated interferon alfa-2a (PEG) in subjects with genotype 1, 2 or 3 hepatitis C (HCV) infection. |
| NCT01329978 ↗ | Sofosbuvir With Pegylated Interferon and Ribavirin Hepatitis C Virus (HCV) Genotypes 1,4,5,6 | Completed | Gilead Sciences | Phase 2 | 2011-03-01 | The purpose of this study is to assess the safety, tolerability, and efficacy of sofosbuvir (GS-7977; PSI-7977) administered in combination with pegylated interferon and ribavirin (PEG/RBV) in treatment-naive patients with HCV genotypes 1,4,5,6, or indeterminate genotype. |
| NCT01435044 ↗ | Safety Study of Regimens of Sofosbuvir, GS-0938, and Ribavirin in Patients With Chronic Hepatitis C Infection | Completed | Quintiles, Inc. | Phase 2 | 2011-09-01 | This study was designed to assess the safety and efficacy of multiple interferon-free treatment regimens of sofosbuvir (Sovaldi™; GS-7977; PSI-7977) and GS-0938 (PSI-352938) alone and in combination, with and without ribavirin (RBV). Each regimen was to be evaluated over 12 and 24 weeks to identify the optimal duration of therapy to maximize the benefit (sustained virologic response [SVR]) versus risk (safety and resistance). |
| NCT01435044 ↗ | Safety Study of Regimens of Sofosbuvir, GS-0938, and Ribavirin in Patients With Chronic Hepatitis C Infection | Completed | Gilead Sciences | Phase 2 | 2011-09-01 | This study was designed to assess the safety and efficacy of multiple interferon-free treatment regimens of sofosbuvir (Sovaldi™; GS-7977; PSI-7977) and GS-0938 (PSI-352938) alone and in combination, with and without ribavirin (RBV). Each regimen was to be evaluated over 12 and 24 weeks to identify the optimal duration of therapy to maximize the benefit (sustained virologic response [SVR]) versus risk (safety and resistance). |
| >Trial ID | >Title | >Status | >Sponsor | >Phase | >Start Date | >Summary |
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