At a glance
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A Phase IIb, Dose Ranging Study of Oral GSK1265744 in Combination With Nucleoside Reverse Transcriptase Inhibitors for Induction of Human Immunodeficiency Virus -1 (HIV-1) Virologic Suppression Followed by an Evaluation of Maintenance of Virologic Suppression When Oral GSK1265744 is Combined With Oral Rilpivirine in HIV-1 Infected, Antiretroviral Therapy Naive Adult Subjects
In Brief
A Phase 2 clinical trial evaluating GSK1265744 10 mg, GSK1265744 30 mg, and 5 other interventions for Infection, Human Immunodeficiency Virus and HIV Infections. Completed, enrolled 244 participants across 48 sites in 2 countries.
Detailed Summary
The study is designed to select a dose of GSK1265744 primarily on the basis of antiviral activity and tolerability in HIV-1 infected, antiretroviral naive subjects. This study consists of two parts: Induction Phase: Approximately 200 subjects will be randomized (50 subjects in each of the 4 treatment arms). The Induction Phase consists of a 24 week dose-ranging evaluation of GSK1265744 at blinded doses of 10 mg, 30 mg and 60 mg once-daily and a control arm of open-label efavirenz (EFV) 600 mg once daily. The background dual nucleoside reverse transcriptase inhibitor (NRTI) antiretroviral therapy (ART) for all arms will be either abacavir/lamivudine (ABC/3TC) or tenofovir/emtricitabine (TDF/FTC) as selected by the Investigator. Subjects randomized to a GSK1265744 containing arm, who successfully complete 24 weeks on study and demonstrate virologic suppression (defined as having a plasma HIV-1 ribonucleic acid \[RNA\] \<50 copies per milliliter \[c/mL\] before Week 24, with no signs of virologic rebound) will become eligible for the Maintenance Phase of this study. Maintenance Phase: The background NRTIs will be discontinued and the subjects will continue their randomized dose of GSK1265744 in combination with rilpivirine (RPV) 25 mg once-daily for an additional 72 weeks. The Maintenance phase will evaluate the ability of this two drug ART regimen to maintain virologic suppression through Week 48, Week 72 and Week 96. Subjects randomized to the EFV arm will continue on their randomized regimen through Week 96. After completion of the maintenance phase, subjects could enroll in the Open-Label Phase to continue GSK1265744 + RPV treatment as long as they continue to derive clinical benefit and until it is locally approved and commercially available.
Study Details
Timeline
Interventions
GSK1265744 10 mg will be administered orally once daily in combination with investigator-selected background NRTIs in the Induction Phase of the study and in combination with Rilpivirine 25 mg in the Maintenance Phase of the study.
GSK1265744 30 mg will be administered orally once daily in combination with investigator-selected background NRTIs in the Induction Phase of the study and in combination with Rilpivirine 25 mg in the Maintenance Phase of the study.
GSK1265744 60 mg will be administered orally once daily in combination with investigator-selected background NRTIs in the Induction Phase of the study and in combination with Rilpivirine 25 mg in the Maintenance Phase of the study.
Efavirenz 600 mg will be administered orally once daily in combination with investigator-selected background NRTIs in the Induction Phase and Maintenance Phase of the study.
Rilpivirine 25 mg will be administered orally once daily in combination with GSK1265744 10 mg, 30 mg and 60 mg in the Maintenance Phase of the study.
Placebo matching to GSK1265744 will be administered along with GSK1265744 10 mg and 30 mg in the Induction phase and Maintenance phase of the study.
The background dual NRTI therapy for all arms in the Induction Phase and Efavirenz 600 mg arm in the Maintenance Phase will be either abacavir 600 mg + lamivudine 300 mg (ABC/3TC) or tenofovir 300 mg + emtricitabine 200 mg (TDF/FTC) as selected by the Investigator.