At a glance
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A Phase IIb Study Evaluating a Long-Acting Intramuscular Regimen of GSK1265744 Plus TMC278 For The Maintenance of Virologic Suppression Following an Induction of Virologic Suppression on an Oral Regimen of GSK1265744 Plus Abacavir/Lamivudine in HIV-1 Infected, Antiretroviral Therapy-Naive Adult Subjects
In Brief
A Phase 2 clinical trial evaluating CAB Oral Tablets, CAB LA, and 4 other interventions for Infection, Human Immunodeficiency Virus and HIV Infections. Completed, enrolled 309 participants across 50 sites in 5 countries.
Detailed 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.
Study Details
Timeline
Interventions
White to almost white oval shaped film coated 30 mg tablets for oral administration.
Sterile white to slightly colored suspension containing 200 mg/mL of GSK744 as free acid (GSK1265744 free acid), polysorbate 20, polyethylene glycol 3350, mannitol, and water for injection, packaged in a 3 mL USP Type I glass vial, for administration by IM injection
ABC/3TC fixed dose combination (FDC) oral tablet, containing 600 mg of ABC (as abacavir sulfate) and 300 mg of 3TC
Off-white, round, biconvex, film-coated 25 mg Rilpivirine (RPV) tablets for oral administration. Eligible subjects switching from the oral regimen to the IM regimen in the Extension Period will receive 2 weeks of RPV 25 mg once daily, from Week 102 through Week 104
Higly-active antiretroviral therapy chosen by participant based on investigator recommendations and based on availability.
Sterile white suspension containing 300 mg/mL of TMC278 as free base, poloxamer 338, sodium dihydrogen phosphate monohydrate, citric acid monohydrate, glucose monohydrate, sodium hydroxide, water for injection, packaged in a 2 mL USP Type I glass vial, for administration by IM injection.