Efficacy and Safety of a Dolutegravir-based Regimen for the Initial Management of HIV Infected Adults in Resource-limited Settings

Summary

Several reports indicate that treatment failure due to HIV resistance or to adverse event-related discontinuation could compromise the effectiveness of scaling-up antiretroviral treatment (ART), especially when lack of access to viral load is a concern. Combined with other nucleoside reverse transcriptase inhibitor, Dolutegravir (DTG) is a very promising alternative to the current first-line non nucleoside reverse transcriptase inhibitor-based regimens. Initial evaluations of DTG conducted in high income countries showed excellent efficacy and safety and indicated high genetic barrier thus preserving second line treatment. As a consequence, DTG-based regimens have been recently included in the first-line options in the national guidelines for ART of several high-income countries. However, the clinical trials evaluating DTG-based regimens have been conducted in highly controlled conditions, including baseline resistance testing and regular viral load monitoring. Moreover, these trials included a high proportion of men with rare co-morbidities. There is need to evaluate how a DTG-based regimen will perform in real-world conditions within resources-constrained settings, where viral load monitoring is limited, and where the majority of HIV patients are women with important family planning consideration and NAMSAL trial is a randomized clinical trial which aims to evaluate efficacy and safety over 48, 96 and 192 weeks of DTG + tenofovir disoproxil fumarate/lamivudine versus Efavirenz (EFV) + tenofovir disoproxil fumarate/lamivudine in 606 ART-naïve HIV-1-infected adults in Cameroon. A set of efficacy and safety endpoints will be compared over 48, 96 and 192 weeks between the two arms including the proportion of patients with viral load \<50 copies/mL and incidence of severe adverse events.

Timeline

Start

2016-07

Primary completion

2018-07

Completion

2021-07

Publications

• Mpoudi-Etame M, Tovar Sanchez T, Bousmah MA, Omgba Bassega P, Olinga J, Mimbe E, Foalem M, Chiep C, Edimo S, Varloteaux M, Pelloquin R, Lamare N, Boyer S, Peeters M, Reynes J, Calmy A, Hill A, Delaporte E, Kouanfack C; New Antiretroviral and Monitoring Strategies in HIV-infected Adults in Low-income countries (NAMSAL-ANRS-12313) study group. Durability of the Efficacy and Safety of Dolutegravir-Based and Low-Dose Efavirenz-Based Regimens for the Initial Treatment of Human Immunodeficiency Virus Type 1 Infection in Cameroon: Week 192 Data of the NAMSAL-ANRS-12313 Study. Open Forum Infect Dis. 2023 Nov 20;10(12):ofad582. doi: 10.1093/ofid/ofad582. eCollection 2023 Dec.
• Bousmah MA, Protopopescu C, Mpoudi-Etame M, Omgba Bassega P, Maradan G, Olinga J, Varloteaux M, Tovar-Sanchez T, Delaporte E, Kouanfack C, Boyer S; NAMSAL ANRS 12313 Study Group. Improvements in Patient-Reported Outcomes Following Initiation of Dolutegravir-Based or Low-Dose Efavirenz-Based First-Line Antiretroviral Therapy: A Four-Year Longitudinal Analysis in Cameroon (NAMSAL ANRS 12313 Trial). J Acquir Immune Defic Syndr. 2023 Nov 1;94(3):262-272. doi: 10.1097/QAI.0000000000003273.
• Bousmah MA, Nishimwe ML, Tovar-Sanchez T, Lantche Wandji M, Mpoudi-Etame M, Maradan G, Omgba Bassega P, Varloteaux M, Montoyo A, Kouanfack C, Delaporte E, Boyer S; New Antiretroviral and Monitoring Strategies in HIV-infected Adults in Low-Income Countries (NAMSAL) ANRS 12313 Study Group. Cost-Utility Analysis of a Dolutegravir-Based Versus Low-Dose Efavirenz-Based Regimen for the Initial Treatment of HIV-Infected Patients in Cameroon (NAMSAL ANRS 12313 Trial). Pharmacoeconomics. 2021 Mar;39(3):331-343. doi: 10.1007/s40273-020-00987-3. Epub 2020 Dec 23.
• Calmy A, Tovar Sanchez T, Kouanfack C, Mpoudi-Etame M, Leroy S, Perrineau S, Lantche Wandji M, Tetsa Tata D, Omgba Bassega P, Abong Bwenda T, Varloteaux M, Tongo M, Mpoudi-Ngole E, Montoyo A, Mercier N, LeMoing V, Peeters M, Reynes J, Delaporte E; New Antiretroviral and Monitoring Strategies in HIV-infected Adults in Low-Income Countries (NAMSAL) ANRS 12313 Study Group. Dolutegravir-based and low-dose efavirenz-based regimen for the initial treatment of HIV-1 infection (NAMSAL): week 96 results from a two-group, multicentre, randomised, open label, phase 3 non-inferiority trial in Cameroon. Lancet HIV. 2020 Oct;7(10):e677-e687. doi: 10.1016/S2352-3018(20)30238-1.
• NAMSAL ANRS 12313 Study Group; Kouanfack C, Mpoudi-Etame M, Omgba Bassega P, Eymard-Duvernay S, Leroy S, Boyer S, Peeters M, Calmy A, Delaporte E. Dolutegravir-Based or Low-Dose Efavirenz-Based Regimen for the Treatment of HIV-1. N Engl J Med. 2019 Aug 29;381(9):816-826. doi: 10.1056/NEJMoa1904340. Epub 2019 Jul 24.

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Indications