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Clinical Trial Summary

The purpose of this study is to learn whether having the AMP Study antibody (called VRC01) in a person's body might help their immune system control HIV better, even without HIV medication called antiretroviral therapy or ART, if they get HIV. This study will evaluate the viral and immune system responses in an Analytical Treatment Interruption (ATI), in participants who received VRC01 or placebo and got HIV while enrolled in HVTN 703/HPTN 081 (NCT02568215). Participants in this study will stop taking their HIV medication. They will stay off HIV medication unless and until the HIV levels in their blood show that their immune system is unable to control the HIV or they meet other ART re-start criteria as noted in section "Detailed Description". While they are not taking HIV medication, their HIV levels will be tested frequently, and their health will be monitored closely. This is called an analytical treatment interruption, or an ATI. An ATI is an experimental procedure that is only used in carefully monitored research.


Clinical Trial Description

The purpose of this study is to evaluate immunologic and virologic responses in an Analytical Treatment Interruption (ATI), in participants who received VRC01 or placebo and got HIV while enrolled in the HVTN 703/HPTN 081 Antibody-Mediated Prevention (AMP) Study (NCT02568215). ATI begins with the cessation of ART on Schedule 1 (Monitoring ATI). Participants on Schedule 1 will attend study visits every week for the first 8 weeks and at least every 2 weeks for the next 16 weeks. After that, participants will attend study visits once a month for the next 6 months, if their body is controlling their HIV without ART. Participants on Schedule 1 for more than a year will have visits every 3 months. For participants on Schedule 1 (Monitoring ATI), a confirmed VL ≥ 200 copies/mL will trigger transition to Schedule 2 (ATI monitoring with viremia). Participants on Schedule 2 will attend study visits every week for the first 8 weeks and at least every 2 weeks for the next 28 weeks. After that, participants will attend study visits once a month for the next 4 months, if their body is controlling their HIV without ART. Participants on Schedule 2 for more than a year will have visits every 3 months. For participants on Schedule 1 (Monitoring ATI), any of the following non-virologic criteria will trigger re-initiation of ART and transition to Schedule 3 (Follow-up on ART): confirmed CD4+ T-cell count < 350 cells/mm3, any HIV-related syndrome, pregnancy or breastfeeding, or ART re-initiation requested by participant or if deemed medically necessary by primary HIV provider or clinical research site Investigator of Record. Participants on Schedule 3 will attend study visits every 2 weeks for the first 12 weeks, once a month for the next 16 weeks, and on 2 occasions 3 months apart for the next 24 weeks. For participants on Schedule 2 (ATI monitoring with viremia), the following virologic criteria will trigger re-initiation of ART and transition to Schedule 3 (Follow-up on ART): viral load remains ≥ 1,000 copies/mL for ≥ 4 consecutive weeks AND viral load has not dropped 0.5 log from the previous week (Week 0 - Week 24), confirmed viral load ≥ 200 copies/mL (after Week 24). Or, the following non-virologic criteria will trigger re-initiation of ART and transition from Schedule 2 (ATI monitoring with viremia) to Schedule 3 (Follow-up on ART): confirmed CD4+ T-cell count < 350 cells/mm3, any HIV-related syndrome, pregnancy or breastfeeding, or ART re-initiation requested by participant or if deemed medically necessary by primary HIV provider or clinical research site Investigator of Record. Study duration is potentially indefinite for participants maintaining extended viral control during ATI. Study duration for most participants is expected to be 13-18 months. The maximum anticipated duration for any participant is expected to be approximately 2 1/2 to 3 years. Visits may include medical history review, physical exam, HIV testing, other STI testing (blood, urine, and cervical/vaginal swab collection), blood draws, pregnancy testing for participants that can become pregnant, HIV transmission risk reduction counseling, and interviews/questionnaires. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04860323
Study type Interventional
Source HIV Vaccine Trials Network
Contact
Status Recruiting
Phase N/A
Start date May 2021
Completion date November 2022

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