Combination Therapy With VRC-HIVMAB060-00-AB (VRC01) and 10-1074 in HIV-Infected Individuals Undergoing Sequential Treatment Interruptions

  • End date
    Mar 31, 2024
  • participants needed
  • sponsor
    National Institute of Allergy and Infectious Diseases (NIAID)
Updated on 22 July 2020
Catherine A Seamon, R.N.
Primary Contact
National Institutes of Health Clinical Center (9.7 mi away) Contact
platelet count
HIV Infection
antiretroviral agents
antiretroviral therapy
direct bilirubin
hiv-1 infection



A daily drug combination can keep human immunodeficiency virus (HIV) levels low for a long time. But if this combination antiretroviral therapy (ART) stops, HIV levels go back up. People can also develop resistance or permanent side effects. Researchers want to see if 2 new drugs can help control HIV when a person is not on ART.


To see if VRC01 and 10-1074 are safe and control HIV when a person is not on ART.


Adults 18 65 with HIV


All participants must agree to practice safer sex. Those who can get pregnant will have a pregnancy test every visit.

Participants will be screened with:

Physical exam

Medicine review

Blood and urine tests

Some participants may need to change their HIV medicine for a brief period of time during the study.

A few weeks later, participants will repeat screening tests and stop taking their HIV medicines.

Interruption phase 1: Participants will have blood tests every 2 weeks, and repeat screening tests every 4 weeks.

Treatment phase: Once their HIV reaches a certain level in the blood, participants will get the 2 study drugs or a salt water placebo. They will not know which they get. Each substance will be given through a thin tube in an arm vein for about 1 hour. Participants will restart their HIV medicines and repeat screening tests every 4 weeks.

Interruption phase 2: Once the level of HIV in the blood becomes undetectable for 3 months, participants will again stop taking their HIV medicines and have blood tests every 2 weeks to monitor the level of HIV in the blood.

Participants will restart their medicines by week 24. They will start sooner if they have certain symptoms or blood levels of HIV become too high. They will repeat most screening tests 3 times over 24 weeks.


Recent advances in antibody cloning technologies have led to the development of a number of highly potent and human immunodeficiency virus (HIV)-specific broadly neutralizing monoclonal antibodies (bNAbs) from B cells of HIV-infected individuals. It has been shown that certain bNAbs can prevent acquisition of the virus, suppress viral replication, delay and/or prevent plasma viral rebound following treatment interruption in simian/human immunodeficiency virus (SHIV)-infected animals. Preliminary data from clinical trials indicates that bNAbs may delay plasma viral rebound following interruption of antiretroviral therapy (ART) and block cell-to-cell transmission of laboratory-adapted HIV in vitro.

In the above studies, suppression of plasma viremia was dependent on maintaining neutralizing serum levels of bNAbs via repeated intravenous (IV) infusions. A recent pre-clinical study in an acute SHIV-macaque model suggests a limited course of passive immunotherapy with two bNAbs (10-1074 and 3BNC117) given shortly after infection, can result in prolonged suppression of plasma viremia that is not dependent on the continuous presence of the bNAbs18. Based on CD8+ T cell depletion studies, it appears that the prolonged suppression of plasma viremia observed in these animals resulted from the induction of potent antiviral CD8+ T cell immunity by the short course bNAb treatment. The mechanism by which bNAb therapy could induce such a response is unclear but could involve the early formation of unique bNAb-SHIV immune complexes that subsequently induce an effective and durable T cell response to the virus.

In light of these encouraging preclinical outcomes, it is of considerable interest to investigate whether treatment with a single infusion of two bNAbs (VRC01 and 10-1074) which target different epitopes of HIV gp120 (CD4 binding site and V3 glycan, respectively), during transient plasma viremia can induce long-lasting anti-HIV immunity capable of controlling plasma viremia in the absence of ART.

Treatment Normal Saline Placebo, 10-1074, VRC-HIVMAB060-00-AB (VRC01)
Clinical Study IdentifierNCT03831945
SponsorNational Institute of Allergy and Infectious Diseases (NIAID)
Last Modified on22 July 2020

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