Can a new TB vaccine protect children with HIV?
NCT ID NCT05539989
First seen Aug 17, 2026 · Last updated Aug 18, 2026 · Updated 1 time
Summary
This trial is testing two tuberculosis (TB) vaccines—VPM1002 and a repeat BCG vaccination—in pre-adolescents aged 8-14 who were vaccinated at birth. The goal is to see if these vaccines are safe and trigger a strong immune response in children both with and without HIV, and in those who have been exposed to TB bacteria. The study compares the vaccines against a placebo to measure their effects.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- VPM1002 vaccine or BCG revaccination
- What this could lead to
- If successful, this could lead to a safer and more effective TB vaccine for children, especially those living with HIV, potentially reducing TB cases worldwide.
- What could go wrong
- This is an early-stage trial, so the vaccines may not prove safe or immunogenic in this population. Results may not generalize to other age groups or regions.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Expected to start
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Dec 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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A research network
The lead sponsor is a research network or cooperative group.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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8 to 14 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Parent or legal guardian is willing and able to provide written informed consent; when applicable potential participant is willing and able to provide written assent * Age 8-14 years (inclusive) at entry * Received birth dose of BCG vaccine * Has a negative nucleic acid test result for M.tb at screening and no other evidence of current active TB disease at screening * M.tb sensitization status (positive or negative) determined based on IGRA testing at screening * HIV status determined * For participants living with HIV: has been receiving antiretroviral therapy for at least six months prior to study entry, has a CD4+ cell count of at least 200 cells/mm\^3 at screening, has had a suppressed HIV viral load for at least three months prior to entry * Has normal or grade 1 results for all of the following at screening: Hemoglobin, White blood cell count, Platelet count, Creatinine, ALT, AST, Total bilirubin * Has a normal temperature and no signs or symptoms of acute illness * For participants assigned female sex at birth or who could otherwise become pregnant: not pregnant * For participants assigned female sex at birth or who could otherwise breastfeed: not breastfeeding * Expected to be available for 48 weeks of study participation * Not expected to participate in any other study of an investigational agent during the 48 weeks of study participation Exclusion Criteria: * Known significant exposure to TB or receipt of tuberculin skin test in the six months prior to study entry * Receipt of treatment for active TB disease in the 24 months prior to study entry * Receipt of TB preventive therapy within 30 days prior to study entry or expected to initiate TB preventive therapy within the 48 weeks following study entry * For participants living with HIV, current active AIDS-defining condition * Receipt of any of the following: Any investigational TB vaccine, More than 14 consecutive days of systemic immunosuppressants or other immune-modifying therapy within the six months prior to study entry, Any immunoglobulin or other blood product within the three months prior to study entry, * Receipt of any vaccine within the 30 days prior to study entry or is expected to receive any vaccine between study entry and the Week 4 Visit * Receipt of allergy treatment with an antigen injection within the 30 days prior to study entry or is expected to receive one or more antigen injections between study entry and the Week 48 Visit * History of any of the following: serious adverse reaction to any vaccine, allergy or hypersensitivity to BCG vaccine, allergy or hypersensitivity to the components of VPM1002 vaccine, anaphylaxis, generalized urticaria, autoimmune disease, diabetes mellitus type 1 or type 2, mild persistent, moderate, or severe asthma, bleeding disorder, malignancy, any condition resulting in the absence of a functional spleen (asplenia), including but not limited to sickle cell disease * History of seizure or use of any medication to prevent or treat seizure within the three years prior to entry * History of suspected or confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection diagnosed within the 30 days prior to entry * Any other documented or suspected clinically significant medical, psychiatric, or behavioral condition or any other condition that, in the opinion of the site investigator, would make participation in the study unsafe, complicate interpretation of study outcome data, or otherwise interfere with achieving the study objectives
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Desmond Tutu TB Centre - Stellenbosch University (SU) CRS
Cape Town, Western Cape, South Africa
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Emavundleni CRS
Cape Town, Western Cape, South Africa
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Family Clinical Research Unit (FAM-CRU) CRS
Tygerberg Hills, South Africa
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Isipingo CRS
Soshanguve, KwaZulu-Natal, South Africa
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Klerksdorp CRS
Klerksdorp, North West, South Africa
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Setshaba Research Centre CRS
Soshanguve, Gauteng, South Africa
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Soweto IMPAACT CRS
Johannesburg, Gauteng, 1862, South Africa
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Umlazi CRS
Durban, South Africa
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Wits RHI Shandukani Research CRS
Johannesburg, South Africa
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- Can a Once-Daily HIV pill with food match Twice-Daily dosing during TB treatment?