Safety Tolerability DDI Short Course Treatment of LTBI Infection With High-dose Rifapentine and Isoniazid or Standard Isoniazid Preventive Therapy in HIV+ Patients (DOLPHIN & DOLPHIN TOO)

Single-arm, single-center, Phase I/II clinical trial, in four groups. Individuals with HIV infection taking Efavirenz (EFV) and two nucleoside reverse transcriptase inhibitors (NRTI) who have undetectable (Groups 1 and 2) or detectable (Group 3 and 4) HIV viral load and an indication for TPT, will be switched to DTG with tenofovir/emtricitabine (Groups 1 and 2) or lamivudine/tenofovir (Groups 3 and 4). Group 1 and 2 will receive weekly HP for 12 total doses starting 8 weeks after initiating DTG. Individuals who are on an existing DTG-based plus two NRTI ART regimen for at least eight weeks (and have not received efavirenz or nevirapine for at least two months) who have an undetectable HIV viral load may also participate. Individuals with HIV infection who are ART treatment naïve at any HIV viral load level and have an indication for TPT will start DTG and be enrolled to receive standard IPT (Group 3) or HP (Group 4) initiated at the same time as DTG. Group 3 and 4 will be enrolled after follow up of Group 1 and 2 has been completed.