Randomized, Controlled, Open Label, Multi-Center Phase III Trial Comparing the Safety and Antiviral Activity of a Protease-Containing Regimen (d4T/ddI/IDV/RTV) Versus a Protease-Sparing Regimen (d4T/ddI/EFV) and the Ability of Interleukin-2 to Purge HIV From Latent Stores in Patients With Acute/Early HIV Infection
Overview
- Phase
- Phase 3
- Intervention
- Indinavir sulfate
- Conditions
- HIV Infections
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
- Enrollment
- 165
- Locations
- 4
- Primary Endpoint
- Virologic: A. Plasma viral load B. Tissue viral load (CNS, lymphoid tissues, genital tract) C. HIV DNA (proviral) levels in circulating mononuclear cells D. Phenotypic and genotypic antiretroviral drug resistance
- Status
- Completed
- Last Updated
- 12 years ago
Overview
Brief Summary
The purpose of this study is to look at the effectiveness of combination anti-HIV drug therapy (with protease inhibitors [PIs] or without) in patients with early HIV infections. This study also looks at whether a drug called interleukin-2 (IL-2) can boost the immune system of these patients.
Doctors are not sure which anti-HIV drug combination is best to use in patients who have early HIV infection and have never received anti-HIV treatment. PIs are anti-HIV drugs that decrease viral load (level of HIV in the blood). However, PIs can cause serious side effects in some patients. Doctors would like to know if a drug combination that does not contain a PI is just as good as one that contains PIs.
Detailed Description
Studies have suggested that an antiretroviral drug regimen of the non-nucleoside agent efavirenz (EFV) in combination with two nucleoside analogues is effective at achieving maximal viral suppression. This provides an alternative treatment to that of the more toxic PI-containing regimen. This trial examines whether a nonPI regimen with EFV is more beneficial than a PI-containing regimen when each is used in combination with the same two nucleoside analogues. A second part of the study looks at whether the addition of IL-2 may offer immunologic benefits as a co-administered drug. Patients are randomized to initiate antiretroviral therapy of a PI-based (stavudine/didanosine/ritonavir \[RTV\]/indinavir \[IDV\]) or nonPI-based (stavudine/didanosine/EFV) regimen. Within these treatment arms, they are stratified according to a positive or negative p24 antigen result. At Week 16, patients not achieving maximal viral suppression (lower than 50 copies/ml) have the option to add abacavir (ABC) or other drugs as intensification therapy. Those achieving virologic suppression (less than 50 copies/ml) are randomized either to receive IL-2 or not. At study entry, and after 12 months, tissue samples of CSF, lymph node, and genital secretions are obtained, with permission. Patients have physical exams, women of child-bearing potential have pregnancy tests, and blood samples are drawn at clinic visits 12-16 times a year over 3 years so that virologic and immunologic evaluations may be performed. Compensation for time and transportation is given.
Investigators
Eligibility Criteria
Inclusion Criteria
- Not provided
Exclusion Criteria
- Not provided
Arms & Interventions
A
Patients will receive combination antiretroviral therapy with a protease inhibitor
Intervention: Indinavir sulfate
A
Patients will receive combination antiretroviral therapy with a protease inhibitor
Intervention: Ritonavir
A
Patients will receive combination antiretroviral therapy with a protease inhibitor
Intervention: Abacavir sulfate
A
Patients will receive combination antiretroviral therapy with a protease inhibitor
Intervention: Didanosine
A
Patients will receive combination antiretroviral therapy with a protease inhibitor
Intervention: Aldesleukin
B
Patients will receive combination antiretroviral therapy without a protease inhibitor
Intervention: Abacavir sulfate
B
Patients will receive combination antiretroviral therapy without a protease inhibitor
Intervention: Efavirenz
B
Patients will receive combination antiretroviral therapy without a protease inhibitor
Intervention: Stavudine
B
Patients will receive combination antiretroviral therapy without a protease inhibitor
Intervention: Didanosine
B
Patients will receive combination antiretroviral therapy without a protease inhibitor
Intervention: Aldesleukin
Outcomes
Primary Outcomes
Virologic: A. Plasma viral load B. Tissue viral load (CNS, lymphoid tissues, genital tract) C. HIV DNA (proviral) levels in circulating mononuclear cells D. Phenotypic and genotypic antiretroviral drug resistance
Time Frame: Throughout study
Immunologic: A. Evaluation of CD4, CD8, CD45RA, CD45RO phenotypes and defined activation markers B. Evaluation of the diversity and persistence of the T cell repertoire (CD4+, CD8+) in the circulation and lymphoid tissues
Time Frame: Throughout study
Immunologic: C. Functional CD4+ cellular assays (class II MHC tetramers) D. Thymic regeneration as studied by the exclusion circle assay E. Evolution of Western blot banding patterns F. Evolution of anti-HIV neutralizing antibody levels
Time Frame: Throughout study
Clinical: A. Minor opportunistic infections or AIDS-defining conditions B. Death C. Clinical or laboratory adverse events D. Evaluation of adherence to therapy E. Evaluation of lipodystrophy
Time Frame: Throughout study