Trial to Evaluate the Interest of a Reductive Anti Retroviral Strategy Using Dual Therapy Inspite of Triple Therapy

Summary

In the early 2000s, the "TRILEGE©" study was realized to determine if the reductive anti retroviral strategy from an initial triple therapy (based on a protease inhibitor as the third agent) towards a dual therapy of nucleoside analogs (in particular the association of "zidovudine +lamivudine") for patients infected by HIV and stabilized for at least 3 months at a threshold value of 400 copies/ml, would allow to obtain a well-controlled plasmatic viral load, with an aim to reduce the long-term side effects of the treatment. The afore mentioned study showed that the reductive anti retroviral strategy was a failure. No study has as yet to revaluate this strategy, in particular in the current context of antiretroviral treatments. Indeed, modern nucleoside inhibitors (Kivexa®, Truvada®) have extended half-lives as well as a superior intrinsic power as compared to treatments proposed in the initial "TRILEGE©" study. Furthermore, the better quality of current triple therapy (as compared to that used 10 years ago) has lead to substantial viral reservoir reduction. Currently, a small number of patients is being successfully treated in the long-term (viral load \< 20 copies/ml) using nucleoside analog dual therapy. The particular characteristics of these patients have yet to be thoroughly investigated. The patients concerned were all treated prematurely before ever passing below 200 lymphocytes T CD4/mm3. It occurred that all these patients presented a low viral reservoir as measured by HIV DNA quantification (\< 2,7 log copies/106 PBMC). Therefore, by targeting patients who have (1) a strong immune restoration, (2) a low HIV DNA value and (3) a very good observance, the investigators emit the hypothesis that, reductive anti retroviral strategy that would consist in changing from a conventional triple therapy towards a Nucleoside reverse-transcriptase inhibitors dual therapy, could allow for durable control of viral replication with the concomitant benefice of reduced antiretroviral side effects and cost.

Timeline

Start

2014-12

Primary completion

2017-08-23

Completion

2018-09-21

Publications

• Background Prazuck T, Verdon R, Le Moal G, Ajana F, Bernard L, Sunder S, Roncato-Saberan M, Ponscarme D, Etienne M, Viard JP, Pasdeloup T, Darasteanu I, Pialoux G, de la Blanchardiere A, Avettand-Fenoel V, Parienti JJ, Hocqueloux L; TRULIGHT Study Team. Tenofovir disoproxil fumarate and emtricitabine maintenance strategy in virologically controlled adults with low HIV-1 DNA: 48 week results from a randomized, open-label, non-inferiority trial. J Antimicrob Chemother. 2021 May 12;76(6):1564-1572. doi: 10.1093/jac/dkab038.
• Hocqueloux L, Gubavu C, Prazuck T, De Dieuleveult B, Guinard J, Seve A, Mille C, Gardiennet E, Lopez P, Rouzioux C, Lefeuvre S, Avettand-Fenoel V. Genital Human Immunodeficiency Virus-1 RNA and DNA Shedding in Virologically Suppressed Individuals Switching From Triple- to Dual- or Monotherapy: Pooled Results From 2 Randomized, Controlled Trials. Clin Infect Dis. 2020 Apr 15;70(9):1973-1979. doi: 10.1093/cid/ciz511.

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Indications