Study Evaluating the Efficacy, Safety, and Tolerability of Switching to Long-acting Cabotegravir Plus Long-acting Rilpivirine From Current Antiretroviral Regimen in Virologically Suppressed HIV-1-infected Adults

Summary

The Antiretroviral Therapy as Long Acting Suppression (ATLAS) study is being conducted to establish if human immunodeficiency virus type-1 (HIV-1) infected adult subjects with current viral suppression on a regimen with 2 nucleoside reverse transcriptase inhibitors (NRTIs) plus a third agent, remain suppressed upon switching to a two-drug intramuscular (IM) long-acting (LA) regimen of cabotegravir (CAB) and rilpivirine (RPV). This is a Phase 3, multi-phase, randomized, open label, active-controlled, multicenter, parallel-group, non-inferiority study in HIV-1, antiretroviral therapy (ART)-adult subjects who are stably suppressed on a current antiretroviral (ARV) regimen. This study is designed to demonstrate the non-inferior antiviral activity of switching to a two drug CAB LA 400 mg + RPV LA 600 mg regimen every 4 weeks (Q4W: monthly) compared with maintenance of current ARV regimen containing 2 NRTIs plus an INI, NNRTI, or a PI. Eligible subjects will be randomized (1:1) into the Maintenance Phase at Day 1 to either continue current ART or switch to initiate oral therapy with CAB 30 mg + RPV 25 mg once daily for 4 Weeks followed by Q4 weekly (monthly) CAB LA + RPV LA injections. Following the Maintenance phase at Week 52, subjects who were randomized to continue their current ART regimen will be given an option to switch to CAB LA + RPV LA injections. Those subjects would transition to LA dosing, beginning with 4 weeks oral CAB + RPV therapy at Week 52, and receive the first IM CAB LA + RPV LA injections at Week 56.

Timeline

Start

2016-10-28

Primary completion

2018-05-29

Completion

2029-12-31

Publications

• Background Swindells S, Lutz T, Van Zyl L, Porteiro N, Stoll M, Mitha E, Shon A, Benn P, Huang JO, Harrington CM, Hove K, Ford SL, Talarico CL, Chounta V, Crauwels H, Van Solingen-Ristea R, Vanveggel S, Margolis DA, Smith KY, Vandermeulen K, Spreen WR. Week 96 extension results of a Phase 3 study evaluating long-acting cabotegravir with rilpivirine for HIV-1 treatment. AIDS. 2022 Feb 1;36(2):185-194. doi: 10.1097/QAD.0000000000003025.
• Elliot ER, Polli JW, Patel P, Garside L, Grove R, Barnett V, Roberts J, Byrapuneni S, Crauwels H, Ford SL, Van Solingen-Ristea R, Birmingham E, D'Amico R, Baugh B, van Wyk J. Efficacy, Safety, and Pharmacokinetics by Body Mass Index Category in Phase 3/3b Long-Acting Cabotegravir Plus Rilpivirine Trials. J Infect Dis. 2024 Jul 25;230(1):e34-e42. doi: 10.1093/infdis/jiad580.
• Chounta V, Byrnes HF, Henry-Szatkowski M, Browning D, Donatti C, Lambert J. Psychometric Validation of the Perception of Injection (PIN) Questionnaire Using Data From Two Phase III, Open-Label, Active-Controlled, Non-Inferiority Studies in People Living With HIV. Adv Ther. 2023 Dec;40(12):5300-5314. doi: 10.1007/s12325-023-02656-1. Epub 2023 Sep 30.
• Moreno S, Rivero A, Ventayol P, Falco V, Torralba M, Schroeder M, Neches V, Vallejo-Aparicio LA, Mackenzie I, Turner M, Harrison C. Cabotegravir and Rilpivirine Long-Acting Antiretroviral Therapy Administered Every 2 Months is Cost-Effective for the Treatment of HIV-1 in Spain. Infect Dis Ther. 2023 Aug;12(8):2039-2055. doi: 10.1007/s40121-023-00840-y. Epub 2023 Jul 14.
• Chounta V, Snedecor SJ, Wu S, Van de Velde N. Indirect comparison of 48-week efficacy and safety of long-acting cabotegravir and rilpivirine maintenance every 8 weeks with daily oral standard of care antiretroviral therapy in participants with virologically suppressed HIV-1-infection. BMC Infect Dis. 2022 May 4;22(1):428. doi: 10.1186/s12879-022-07243-3.
• Rizzardini G, Overton ET, Orkin C, Swindells S, Arasteh K, Gorgolas Hernandez-Mora M, Pokrovsky V, Girard PM, Oka S, Andrade-Villanueva JF, Richmond GJ, Baumgarten A, Masia M, Latiff G, Griffith S, Harrington CM, Hudson KJ, St Clair M, Talarico CL, Patel P, Cutrell A, Van Eygen V, D'Amico R, Mrus JM, Wu S, Ford SL, Chow K, Roberts J, Wills A, Walters N, Vanveggel S, Van Solingen-Ristea R, Crauwels H, Smith KY, Spreen WR, Margolis DA. Long-Acting Injectable Cabotegravir + Rilpivirine for HIV Maintenance Therapy: Week 48 Pooled Analysis of Phase 3 ATLAS and FLAIR Trials. J Acquir Immune Defic Syndr. 2020 Dec 1;85(4):498-506. doi: 10.1097/QAI.0000000000002466.
• Swindells S, Andrade-Villanueva JF, Richmond GJ, Rizzardini G, Baumgarten A, Masia M, Latiff G, Pokrovsky V, Bredeek F, Smith G, Cahn P, Kim YS, Ford SL, Talarico CL, Patel P, Chounta V, Crauwels H, Parys W, Vanveggel S, Mrus J, Huang J, Harrington CM, Hudson KJ, Margolis DA, Smith KY, Williams PE, Spreen WR. Long-Acting Cabotegravir and Rilpivirine for Maintenance of HIV-1 Suppression. N Engl J Med. 2020 Mar 19;382(12):1112-1123. doi: 10.1056/NEJMoa1904398. Epub 2020 Mar 4.

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