HIV Infections Clinical Trial
Official title:
Vicriviroc in Combination Treatment With an Optimized ART Regimen in HIV-Infected Treatment-Experienced Subjects (VICTOR-E4)
Verified date | August 2022 |
Source | Merck Sharp & Dohme LLC |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Vicriviroc (vye-kri-VYE-rock) is an investigational drug (not yet approved by Government Regulatory Authorities for commercial use) that belongs to a new class of drugs, called CCR5 receptor blockers. This group of drugs blocks one of the ways HIV enters T-cells (the cells that fight infection). Previous smaller studies in HIV treatment-experienced patients, have shown that vicriviroc is safe and effective. The purpose of this study is to confirm the previous findings in a larger phase 3 study over a 48-week period, and show that when taken in combination with other appropriate HIV drugs, vicriviroc can decrease the level of HIV (viral load) in the blood and that it is well tolerated.
Status | Completed |
Enrollment | 400 |
Est. completion date | October 26, 2010 |
Est. primary completion date | August 24, 2009 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 16 Years and older |
Eligibility | Inclusion Criteria: - Subject must be infected with HIV-1 virus. - Subject must have documented plasma HIV-1 RNA >1000 copies/mL within 60 days of Visit 1/Day 1 (randomization) and must be either - on a stable regimen of 3 or more antiretrovirals (ART) for at least 4 weeks prior to the screening visit OR - on no ART agents for at least 4 weeks prior to the screening visit. - Subject must be ART experienced and have documented resistance to at least 2 of the following 3 drug classes: nucleoside reverse transcriptase inhibitor (NRTI); non-nucleoside reverse transcriptase inhibitor (NNRTI); or protease inhibitor (PI) OR Subject must have ART class experience for at least 6 months with at least two of the following: one NRTI; one NNRTI; two PIs (excluding low-dose ritonavir). - Women of child-bearing potential must agree to use a medically accepted method of contraceptive as defined by the protocol. - Subject must be willing to initiate CD4+ cell count-guided chemoprophylaxis to prevent opportunistic infection as defined in protocol. Exclusion Criteria: - Subjects with detectable CXCR4-tropic or dual/mixed CCR5/CXCR4-tropic HIV isolates at Screening. - Subjects with prior history of malignancy (with exceptions of cutaneous Kaposi's sarcoma without visceral or mucosal involvement that resolved with HAART but without systemic anti-cancer treatment, and basal-cell carcinoma of skin); or prior receipt of cytotoxic cancer chemotherapy that may increase the risk of malignancy. - Subjects with seizure disorder requiring anti-seizure therapy or with any condition that is likely to increase risk of seizure (CNS malignancy or toxoplasmosis). |
Country | Name | City | State |
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n/a |
Lead Sponsor | Collaborator |
---|---|
Merck Sharp & Dohme LLC |
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Proportion of subjects with undetectable plasma HIV-1 RNA (<50 copies/mL) | 48 weeks | ||
Secondary | Mean change from baseline in plasma HIV-1 RNA (log10 copies/mL); Proportion of subjects with <400 copies/mL of plasma HIV-1 RNA; Proportion of subjects with at least 2log10 reduction from baseline in plasma HIV-1 RNA | 48 weeks |
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