Could a TB vaccine help kids with type 1 diabetes?
NCT ID NCT05866536
First seen Jan 08, 2026 · Last updated Jun 23, 2026 · Updated 29 times
Summary
This study is testing whether giving two doses of the BCG vaccine, traditionally used for tuberculosis, can help children aged 8 to 18 with newly diagnosed type 1 diabetes. The goal is to see if the vaccine can improve blood sugar levels and reduce the amount of insulin they need. One hundred participants will receive either BCG or a placebo, and researchers will monitor changes over time.
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Immunobiology Labs CNY 149
RECRUITINGCharlestown, Massachusetts, 02129, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••
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What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
BCG vaccine (Bacillus Calmette-Guérin)
What this could lead to
If it works, this could point toward a way to help children with type 1 diabetes maintain better blood sugar control and use less insulin.
What could go wrong
This is an early phase 2 trial with only 100 children, so results are uncertain. BCG is generally safe but may cause local reactions or not improve diabetes outcomes.
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.