HIV Clinical Trial
Official title:
Immune-based Therapy Pilot Study for the Treatment of Primary HIV Infection With the Objective to Induce a Strong Specific HIV Immune Response Able to Control Viral Replication Without Highly Active Anti-Retroviral Therapy (HAART)
Pilot study for the treatment of primary HIV infection with the objective to induce a strong specific HIV immune response able to control viral replication without HAART.
Pilot and open RCT in 20 patients with primary HIV-1 infection who were randomized to one of these two arms: 1) Control arm (A), Tenofovir +Lamivudine + Lopinavir-ritonavir (Kaletra) at standard doses for 44 weeks (W44); a short treatment interruption (TI) was performed at W36, and HAART was restarted for 8 weeks when plasma HIV-1 RNA viral load (pVL) rebounded>200 copies/mL. At W44 HAART was stopped and patients were followed for 48 additional weeks (W92). 2) Immune-based arm (B), same HAART schedule plus oral cyclosporine A (CsA)(serum levels 250-350 mcg/L) for the first 8 weeks of HAART. During the TI, patients received sc GM-CSF (250 mcg TIW) plus weekly sc pegylated-interferon a2b (Peg-INF)(1.5 mcg/kg/week). During the last 8 weeks of HAART (until W44), patients received daily sc low-dose interleukin-2 (IL-2)(0.75 MU/kg QD). The primary endpoint was pVL <1000copies/mL (<3.0 log10/mL) at 12 (W56) and at 48 (W92) weeks after stopping HAART. Sample size was calculated in order to detect a pVL difference of 1.5log10 copies/mL at 12 (W56) weeks after stopping HAART between the control and the immune-based arms with a power of 80% and a level of significance of0.05. ;
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
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