A Phase IIb Study to Evaluate a Long-Acting Intramuscular Regimen for Maintenance of Virologic Suppression (Following Induction With an Oral Regimen of GSK1265744 and Abacavir/Lamivudine) in Human Immunodeficiency Virus Type 1 (HIV-1) Infected, Antiretroviral Therapy-Naive Adult Subjects

Summary

This study is a Phase IIb, randomized, multicentre, parallel group, open-label, study having an overall objective to evaluate the antiviral activity, tolerability, and safety of two intramuscular (IM) dosing regimens of GSK744 LA plus TMC278 LA, relative to GSK744 30 milligram (mg) plus Abacavir/Lamivudine (ABC/3TC) given orally once daily (QD), in HIV-1 infected antiretroviral-naïve subjects. GSK744 is the oral formulation of GSK1265744 (cabotegravir), GSK744 LA is the long acting injectable formulation of GSK1265744 and TMC278 LA is the long acting injectable formulation of TMC278. The study will consist of three parts: an Induction Period, Maintenance Period and Extension Period. There is also a Long-Term Follow Up Period for subjects who withdraw from the study and have received at least one dose of GSK744 LA and / or TMC278 LA. In the Induction Period, eligible subjects will receive a combination of an oral regimen of 30 mg of GSK744 and 600/300 mg of ABC/3TC, once daily for 20 weeks. In the Maintenance Period, eligible subjects will be randomized 2:2:1 at Day 1 to receive an IM regimen of GSK744 LA 400 mg + TMC278 LA 600 mg every 4 weeks for 96 weeks (Q4W), an IM regimen of GSK744 LA 600 mg + TMC278 LA 900 mg every 8 weeks for 96 weeks (Q8W), or to continue on the oral Induction Period regimen of GSK744 30 mg + ABC/3TC once daily for 96 weeks (or 104 weeks if continuing on to the Extension Period). The Extension Period will allow for a collection of longer term efficacy and safety and tolerability data from subjects receiving GSK744 LA and TMC278 LA. The study will involve sufficient subjects at screening in order to ensure a total of approximately 265 subjects at the beginning of the Induction Period and approximately 225 subjects randomized into the Maintenance Period.

Timeline

Start

2014-04-28

Primary completion

2015-08-13

Completion

2023-04-20

Publications

• Background Kerrigan D, Mantsios A, Gorgolas M, Montes ML, Pulido F, Brinson C, deVente J, Richmond GJ, Beckham SW, Hammond P, Margolis D, Murray M. Experiences with long acting injectable ART: A qualitative study among PLHIV participating in a Phase II study of cabotegravir + rilpivirine (LATTE-2) in the United States and Spain. PLoS One. 2018 Jan 5;13(1):e0190487. doi: 10.1371/journal.pone.0190487. eCollection 2018.
• Okesanya OJ, Ayeni RA, Amadin P, Ngwoke I, Amisu BO, Ukoaka BM, Ahmed MM, Oso TA, Musa SS, Lucero-Prisno DE. Advances in HIV Treatment and Vaccine Development: Emerging Therapies and Breakthrough Strategies for Long-Term Control. AIDS Res Treat. 2025 Jul 4;2025:6829446. doi: 10.1155/arat/6829446. eCollection 2025.
• Smith GHR, Henry WK, Podzamczer D, Masia MDM, Bettacchi CJ, Arasteh K, Jaeger H, Khuong-Josses MA, Montes-Ramirez ML, Stellbrink HJ, Yazdanpanah Y, Richmond GJ, Sutton KC, Zhang F, McCoig CC, St Clair MH, Vandermeulen K, Van Solingen-Ristea R, Smith KY, Margolis DA, Spreen WR. Efficacy, Safety, and Durability of Long-Acting Cabotegravir and Rilpivirine in Adults With Human Immunodeficiency Virus Type 1 Infection: 5-Year Results From the LATTE-2 Study. Open Forum Infect Dis. 2021 Aug 25;8(9):ofab439. doi: 10.1093/ofid/ofab439. eCollection 2021 Sep.
• Letendre SL, Mills A, Hagins D, Swindells S, Felizarta F, Devente J, Bettacchi C, Lou Y, Ford S, Sutton K, Shaik JS, Crauwels H, D'Amico R, Patel P. Pharmacokinetics and antiviral activity of cabotegravir and rilpivirine in cerebrospinal fluid following long-acting injectable administration in HIV-infected adults. J Antimicrob Chemother. 2020 Mar 1;75(3):648-655. doi: 10.1093/jac/dkz504.
• Murray M, Pulido F, Mills A, Ramgopal M, LeBlanc R, Jaeger H, Canon V, Dorey D, Griffith S, Mrus J, Spreen W, Margolis D. Patient-reported tolerability and acceptability of cabotegravir + rilpivirine long-acting injections for the treatment of HIV-1 infection: 96-week results from the randomized LATTE-2 study. HIV Res Clin Pract. 2019 Aug-Oct;20(4-5):111-122. doi: 10.1080/25787489.2019.1661696. Epub 2019 Sep 18.
• Margolis DA, Gonzalez-Garcia J, Stellbrink HJ, Eron JJ, Yazdanpanah Y, Podzamczer D, Lutz T, Angel JB, Richmond GJ, Clotet B, Gutierrez F, Sloan L, Clair MS, Murray M, Ford SL, Mrus J, Patel P, Crauwels H, Griffith SK, Sutton KC, Dorey D, Smith KY, Williams PE, Spreen WR. Long-acting intramuscular cabotegravir and rilpivirine in adults with HIV-1 infection (LATTE-2): 96-week results of a randomised, open-label, phase 2b, non-inferiority trial. Lancet. 2017 Sep 23;390(10101):1499-1510. doi: 10.1016/S0140-6736(17)31917-7. Epub 2017 Jul 24.

Drugs

Indications