Study to Evaluate the Safety and Efficacy of Emtricitabine and Tenofovir Alafenamide (F/TAF) Fixed-Dose Combination Once Daily for Pre-Exposure Prophylaxis in Men and Transgender Women Who Have Sex With Men and Are At Risk of HIV-1 Infection (DISCOVER)
Pre-Exposure Prophylaxis of HIV-1 Infection
About this trial
This is an interventional treatment trial for Pre-Exposure Prophylaxis of HIV-1 Infection
Eligibility Criteria
Key Inclusion Criteria:
- Must be at high risk of sexual acquisition of HIV
- HIV-1 negative status
MSM and TGW (male at birth) who have at least one of the following:
- condomless anal intercourse with at least two unique male partners in the past 12 weeks (partners must be either HIV-infected or of unknown HIV status)
- documented history of syphilis in the past 24 weeks
- documented history of rectal gonorrhea or chlamydia in the past 24 weeks
- Adequate renal function: estimated glomerular filtration rate ≥ 60 mL/min according to the Cockcroft-Gault formula
Adequate liver and hematologic function:
- Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 2.5 × upper limit of normal (ULN) and total bilirubin ≤ 1.5 mg/dL, or normal direct bilirubin
- Absolute neutrophil count ≥ 1000/mm^3; platelets ≥ 75,000/mm^3; hemoglobin ≥ 10 g/dL
Key Exclusion Criteria
- Grade 3 or Grade 4 proteinuria or glycosuria that is unexplained or not clinically manageable.
NOTE: Other protocol defined Inclusion/ Exclusion criteria may apply.
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Experimental
Experimental
Experimental
Experimental
F/TAF
F/TDF
Open-label
Open-Label Extension
F/TAF+ F/TDF placebo for at least 96 weeks
F/TDF+ F/TAF placebo for at least 96 weeks
Once all participants have been on blinded treatment for at least 96 weeks, the study will be unblinded and participants will be offered the option to continue on open-label F/TAF treatment for 96 weeks.
Participants who remain on study at Open-label Week 96 will have the option to continue on open-label F/TAF treatment in the Open-label extension phase for 408 weeks.