A5409: A Phase 2 Randomized, Adaptive, Dose-Ranging, Open-Label Trial of Novel Regimens for the Treatment of Pulmonary Tuberculosis (RAD-TB)
The standard of care (SOC) treatment of tuberculosis (TB) was developed over 40 years ago, and the treatment is long (6 months) and hard. In many settings, the medicine does not work well because people stop taking it or miss doses, which leads to TB returning. For some people, the SOC treatment can cause negative side effects.
This study will evaluate new medication regimens for the treatment of TB. This study is adaptive, which means, as new medication regimens are identified for the treatment of TB, some of them will be selected for testing in this study. Therefore, there may be different drug regimens being used as part of the study at different times.
A5417: Randomized, Double-Blind, Placebo-Controlled Study of the Combination of two Long-Acting Broadly Neutralizing Antibodies at ART Initiation in Adults Living with HIV-1 in sub-Saharan Africa
This study enrolls people living with HIV in sub-Saharan Africa at the time that they are about to start antiretroviral therapy (ART). They will be assigned to receive either two long-acting study medications called “monoclonal antibodies” or placebo (normal saline) when they start ART. An antibody is a substance that the body makes in response to an infection. The antibodies in this study attach to HIV and can block HIV from attacking cells in the body and from spreading to other parts of the body. These study antibodies are being developed to potentially treat and prevent HIV.
A5397/HVTN 603:A Phase 2a/2b Study Evaluating Safety, Immunogenicity, and Therapeutic Efficacy of ID93 + GLA-SE Vaccination in Participants with Rifampicin-Susceptible Pulmonary TB
Effective tuberculosis (TB) treatment is available and saves millions of lives, but it has not had a significant impact on the global TB epidemic. The treatment requires strict adherence to taking the medicine on schedule, and if it isn’t taken as directed people can relapse before they complete treatment. TB can recur in up to 8% of people who successfully complete TB treatment. Having an effective TB vaccine to prevent TB infection and control TB disease is essential to eliminate TB globally.
A5397/HVTN 603 will give participants 2 injections of a study vaccine called ID93+GLA-SE or a placebo at different times after they have started taking TB treatment. The researchers will compare responses in people who get the study vaccine to people who get the placebo. This study will enroll both people with and without HIV. It is the first to test ID93 + GLA-SE in people living with HIV (PLWH).
A5385: An Observational Post-Intervention Cohort Destination Protocol
This study is a two-step, non-interventional extension study for individuals participating in another interventional HIV cure trial (parent study) that includes an analytical treatment interruption (ATI) (stopping anti-HIV therapy [ART] while monitoring viral load). Participants will be individuals who achieved post-intervention control (PIC) (maintaining HIV suppression after treatment interruption) in their parent study.
Step 1 will consist of an extended ATI period in which PICs will be monitored for safety, viral, and immune outcomes. Time to viral rebound and restart of antiretroviral therapy (ART) will be measured. Participants will begin Step 2 if they meet ART restart criteria and will be monitored for safety, immune, and viral outcomes through 48 weeks after ART restart.