Status and phase
Conditions
Treatments
About
This is a Phase II/III, multicenter, multi-country, trial to assess the efficacy, safety, tolerance and pharmacokinetics of sofosbuvir plus ravidasvir for the treatment of HCV infection.
Full description
This is a Phase II/III, multicenter, multi-country trial to assess the efficacy, safety, tolerance and pharmacokinetics of SOF-RDV for the treatment of HCV infection, across genotypes 1,2,3,6, among non-cirrhotic and cirrhotic with CTP class A, interferon/ribavirin naïve or experienced, HCV mono-infected and HCV/HIV co-infected subjects.
It will also study the pharmacokinetics of RDV and, in HCV/HIV co-infected subjects, possible drug-drug interactions with antiretrovirals.
The treatment duration will be 12 weeks for subjects with no cirrhosis (Metavir F0 to F3) and 24 weeks for subjects with compensated cirrhosis (Metavir F4, CTP class A).
The study is performed in 2 stages. Stage 1 has been completed. Efficacy and safety results from Stage 1 were reviewed and approved by the independent Data and Safety Monitoring Board (DSMB) which provided the recommendation to proceed with the study stage 2. On-going stage 2 aims to supplement Stage 1 results and provide additional information on the performance of SOF-RDV in the main genotypes found in Malaysia and Thailand.
Enrollment
Sex
Ages
Volunteers
Inclusion criteria
Evidence of chronic HCV infection, defined as: Positive anti-HCV antibody or detectable HCV RNA or HCV genotype at least 6 months before screening and HCV viral load ≥10^4 IU/mL at the time of screening / In subjects without documented HCV test results 6 months before screening, chronic hepatitis C infection can be assumed if risk exposures occurred > 6 months prior to screening and HCV viral load ≥10^4 IU/mL at the time of screening.
Willing and able to provide written informed consent.
Men and women age ≥ 18 years and < 70 years.
Body Mass Index (BMI) of 18 to 35 kg/m2.
Intention to comply with the dosing instructions for study drug administration and able to complete the study schedule of assessments.
Women with a negative pregnancy test at screening and baseline.
Women of child bearing potential who accept a highly effective contraceptive method from at least 2 weeks prior to study day 1 until 1-month post-treatment. A woman is of non-child bearing potential if she (a) reached natural menopause determined retrospectively after 12 months of amenorrhea without any other obvious medical cause or (b) had procedures like bilateral tubal ligation or hysterectomy or bilateral oophorectomy.
Subjects who are compliant in an opioid substitution maintenance program (e.g. with methadone or buprenorphine) may be included as long as there is no concern about study medications adherence and interaction or compliance to study schedules.
Inclusion criteria related to HIV/HCV co-infected patients:
Exclusion criteria
Decompensated cirrhosis defined as: Evidence of advanced stage liver cirrhosis and Child-Turcotte-Pugh (CTP) Class B or C or CTP score >6) or current/past history of decompensation including ascites, variceal bleeding, spontaneous bacterial peritonitis, or hepatic encephalopathy.
Hepatocellular carcinoma: for all patients with cirrhosis, hepatocellular carcinoma (HCC), should be excluded by liver imaging within 6 months prior to screening, and this must continue periodically as in routine HCC surveillance.
Laboratory exclusion criteria:
Patients with serum creatinine > 1.5 ULN or end stage renal disease
Hepatitis B co-infection (HBsAg positive)
Pregnancy, as documented by positive pregnancy tests at screening or baseline
Breastfeeding
Subjects currently receiving or unable to stop the use for at least 1 week prior to receiving the first dose of study drug any medications or herbal supplements known to be potent inhibitors or moderate inducers of cytochrome P450 (CYP) 3A4 or potent inducers of P-glycoprotein. This includes subjects who are on amiodarone or other contraindicated/excluded drugs.
Participation in other clinical trials within 3 months.
Any clinically significant findings or unstable condition during the screening, medical history or physical examination that, in the investigator's opinion, would compromise participation in this study as per standard guidelines and local practice. This could include patients with poorly controlled hypertension, asthma, diabetes, or other life-threatening conditions.
Current or history of use within the preceding 6 months of immunosuppressive or immune-modulating agents. Corticosteroid used to treat any medical condition are allowed if systemic for not more than 2 weeks or if topical.
History of solid organ or bone marrow transplantation.
Any prior NS5A inhibitors therapy.
Patients with significant cardiovascular conditions including:
Use of medications associated with QT prolongation concurrently or within the 30 days prior to Screening Visit, including: macrolides, antiarrhythmic agents, azoles, fluoroquinolones, and tricyclic anti-depressants. Commonly used and essential medications for this study population like methadone and/or efavirenz is allowed as long as the QTcF value at baseline is < 450 milliseconds.
Self-reporting active injection drug use at screening (only for stage 2).
Exclusion criteria related to HIV/HCV co-infected patients: HIV/HCV co-infected patients not yet on stable antiretroviral therapy or for whom ART treatment initiation maybe scheduled during the study period.
Primary purpose
Allocation
Interventional model
Masking
603 participants in 1 patient group
Loading...
Data sourced from clinicaltrials.gov
Clinical trials
Research sites
Resources
Legal