HIV Infections Clinical Trial
Official title:
Multicentric Randomised Controlled Trial Assessing the Efficacy of Two Strategies of Structured Treatment Interruption of Highly Active Antiretroviral Therapy (HAART) Compared With a Continuous HAART in HIV- Infected Adults in Abidjan
Interrupting HAART during limited periods of time ("structured treatment interruption : STI") could entail benefits (better long term tolerance, lower drug-induced viral resistance, lower cost) but also concomitant risks (lower efficacy, higher drug-induced viral resistance). At present, the benefit/risk ratio of STI is unclear. Several STI trials are in progress in industrialised countries. This trial aim at assessing the benefits and risks of two different STI strategies in West Africa.
The objective of this study is to assess the non-inferiority of two strategies of structured
treatment interruption (STI) of highly active antiretroviral treatment (HAART) compared with
a continuous HAART.
It's a multicentric open labeled randomised non-inferiority trial, which takes place in 5
health care centres in Abidjan, the economic capital city of Cote d'Ivoire
The trial was designed in two phases :
1. Pre-randomisation phase : 840 HAART-naive HIV-infected adults start the following
continuous HAART regimen: zidovudine-lamivudine in combination with
- preferably efavirenz, for HIV-1 infected men, and HIV-1 infected women with an
effective contraception and no history of nevirapine-containing p-MTCT (prevention
of mother to child transmission);
- ritonavir-indinavir, for HIV-2 infected patients, women not desiring
contraception, and women with a past history of p-MTCT with nevirapine.
2. Trial phase : After at least six months on continuous HAART in the pre-randomisation
phase, patients who meet success criteria (CD4 count over 350/mm3, undetectable viral
load, absence of current opportunistic infection) are randomised into three arms :
- Arm 1: Continuous HAART (1 of 6 patients)
- Arm 2: Fixed STI strategy (3 of 6 patients): immutable periods of 2 months on
HAART / 4 months off HAART
- Arm 3: CD4-guided STI strategy (2 of 6 patients): unlimited interruption of HAART,
and then re-introduction/re-interruption guided by the evolution of the CD4 count.
Following the DSMB recommendation, the arm 3 has been discontinued in october 2005. The
trial is continuing for patients in the arms 1 and 2.
;
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
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