Clinical Trial to Assess Safety and Efficacy of Combination Therapy: Hydroxychloroquine, Pegylated Interferon Alpha-2a and Ribavirin in Chronic Hepatitis C Subjects Non-responders to the Standard of Care Therapy.

Phase 1

• Conditions: Chronic Hepatitis C
• Interventions: Biological: Hydroxychloroquine (HCQ), Pegylated Interferon Alpha-2a (Peg-IFN alpha-2a) and Ribavirin

• Registration Number: NCT01272310
• Lead Sponsor: Sheba Medical Center

Brief Summary

The study is aimed to investigate the safety, tolerability and efficacy of a fixed dose combination therapy of: Hydroxychloroquine (HCQ), Pegylated Interferon Alpha-2a (PEG-IFN alpha-2a) and Ribavirin (RBV) in Chronic Hepatitis C Genotype 1 Infected adult subjects who failed to respond following a course of PEG-IFN and RBV Therapy.

Detailed Description

This is a phase I/II, open clinical trial to assess the safety, tolerability and preliminary efficacy data of a fixed dose combination therapy of: HCQ, Peg-IFN alpha-2a and RBV in chronic hepatitis C genotype 1 infected subjects who failed to respond following a course of Peg-IFN and RBV Therapy (SoC). The study is a single center trial to be conducted at the Department of Gastroenterology \& Hepatology, at Sheba Medical Center, Tel Hashomer, Israel.

Overall, thirty six (36) patients will be recruited. All patients enrolled will have a documented history of chronic HCV disease and being non-responder on earlier Peg-IFN based treatment lasting for at least 12 consecutive weeks prior to study enrolment.

The expected duration of patient screening period prior to enrollment into this study is in-between six weeks (42 days) up to 2 days prior to the study enrollment day at visit 2 (verification of compliance with inclusion/exclusion criteria including clinical laboratory results). Eligible patients will be enrolled into the study and will be observed twice on the first week of the study, once a week during the initiation of the treatment period at weeks 2,3 and week 4, later during the treatment period once a month at weeks 8-48 and at two follow up visits post treatment to take place at week 60 and 72 (allowing a time window of ± 5 days for all visits).

Study Timeline

• Status Verified: 2011-01
• Study Start: 2011-01
• Study First Submitted: 2011-01-03
• Study First Submitted QC: 2011-01-06
• Last Update Submitted: 2011-01-06
• Study First Posted: 2011-01-07
• Last Update Posted: 2011-01-07
• Primary Completion: 2012-01
• Study Completion: 2013-07

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 36

Inclusion Criteria

1. Males and females between 18 and 70 years old.
2. Subjects diagnosed to have positive HCV antibodies using a third generation test.
3. Subject is diagnosed to have detectable HCV RNA by PCR.
4. Liver biopsy or FibroTest showing a METAVIR score ≥F2 and/or ≥A2.
5. Subject diagnosed to have compensated liver disease.
6. Subject is non-responder (null or partial) on prior Peg-IFN and RBV based treatment lasting for at least 12 consecutive weeks.
7. Treatment not discontinued due to intolerability to Peg-IFN or RBV.
8. Subjects able to comprehend and give informed consent for participation in this study.
9. Subject is willing to be treated and commit to all visits.

Exclusion Criteria

1. Anti HCV therapy contraindications.
2. Subject is identified as a relapser on prior Peg-IFN and RBV based treatment.
3. Hypersensitivity to one of the three drugs (HCQ, Peg-IFN, RBV).
4. Patient has Anaemia,neutropenia, thrombocytopenia, elevated bilirubin levels, elevated ALT and/or AST, or elevated creatinin and INR greater than 1.5.
5. Concomitant liver disease other than hepatitis C: chronic hepatitis B, alcoholic liver disease, autoimmune hepatitis, Wilson's disease, hemochromatosis, alpha-1 antitrypsin deficiency.
6. Decompensated cirrhosis (Child Pugh >A).
7. Clinical evidence for hepatocellular carcinoma.
8. Human immunodeficiency virus co-infection.
9. Major uncontrolled psychiatric illness. Minor or situational depressions are allowed.
10. Active elicit drug or alcohol abuse.
11. Serious co-morbid conditions as: heart failure, significant coronary heart disease, chronic obstructive pulmonary disease, renal insufficiency, poorly controlled diabetes, autoimmune disorders, and malignant diseases in the previous 5 years.
12. Immunosuppressive treatment including corticosteroids,
13. Untreated or uncontrolled or thyroid disease.
14. Solid transplant organ (renal, heart, or lung).
15. Pregnancy or unwillingness to practice double contraception or abstinence by the subject of childbearing potential or partner.
16. Subject objects to the study protocol.
17. Concurrent participation in any other clinical study within 30 days prior to enrollment.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Combination therapy	Hydroxychloroquine (HCQ), Pegylated Interferon Alpha-2a (Peg-IFN alpha-2a) and Ribavirin	-

Primary Outcome Measures

Name	Time	Method
Change from baseline in physical examination	Twice on study first week , once a week during treatment initiation at weeks 2,3 ,4, later during treatment period once a month at weeks 8-48 and at weeks 60 and 72 follow up visits post treatment	Body system screaning
Change from baseline in vital Signs	Twice on study first week , once a week during treatment initiation at weeks 2,3 ,4, later during treatment period once a month at weeks 8-48 and at weeks 60 and 72 follow up visits post treatment	Heart Rate, Blood Presure, Respiratory Rate , Body temperature
Change from baseline in clinical laboratory parameters	Twice on study first week , once a week during treatment initiation at weeks 2,3 ,4, later during treatment period once a month at weeks 8-48 and at weeks 60 and 72 follow up visits post treatment	Hematology, Blood Chemistry, Coagulation parameters, Urinalysis
Change from baseline in adverse events	Twice on study first week , once a week during treatment initiation at weeks 2,3 ,4, later during treatment period once a month at weeks 8-48 and at weeks 60 and 72 follow up visits post treatment	All observed and or reported adverse events

Secondary Outcome Measures

Name	Time	Method
HCV RNA level	at 4,12, 24, 48 and 72 weeks after treatment	Changes in HCV RNA levels, monitored along the study period. The efficacy of a HCQ-containing treatment regimen defined as the proportion of subjects with SVR i.e. undetectable HCV RNA \<50 IU/ml) at 5 different time points: cEVR at 12 weeks, 4 weeks, 24 weeks, 48 weeks after treatment initiation and at 24 weeks after end of treatment (week 72).