10E8.4/iMab Bispecific Antibody and VRC07-523LS Monoclonal Antibody in HIV-infected Adults

This is an open-label phase 1b clinical trial enrolling people living with HIV (PLWH) who are antiretroviral therapy (ART)-naïve or have not been on ART for \> 24 weeks. This study will enroll PLWH to assess the safety, tolerability, and antiviral effect of bispecific and long-acting bNAbs, alone and in combination. The study will be conducted as a single center study at National Institute for Medical Research-Mbeya Medical Research Center (NIMR-MMRC) in Mbeya, Tanzania. 20 PLWH will be sequentially enrolled into one of 5 arms, each arm comprised of 4 participants. Sequential enrollment will occur in the following order: * Arm 1 will receive standard daily oral ART. * Arm 2 will receive a single dose of 10E8.4/iMab 600mg intravenous injection (IV). * Arm 3 will receive a single dose of 10E8.4/iMab 600mg intramuscular injection (IM). * Arm 4 will receive a single dose of 10E8.4/iMab 1800mg IV. * Arm 5 will receive a single dose of combination therapy with both 10E8.4/iMab 1800mg IV and VRC07-523LS 1200mg IV.