New chickenpox vaccine for toddlers shows promise in safety trial
NCT ID NCT06693895
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests a new chickenpox vaccine in 750 healthy children aged 12-15 months. Researchers will compare its safety to the existing Varivax vaccine. The goal is to see if the new vaccine causes similar side effects like injection site pain, fever, or rash.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
investigational varicella vaccine
What this could lead to
If successful, this could provide a safe and effective alternative chickenpox vaccine for young children.
What could go wrong
This is an early-stage safety study, so it may not prove the vaccine prevents chickenpox. Side effects like fever or rash are possible.
Disclaimer
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This is a summary of
the original study
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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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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
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Study contacts
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Contact
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Locations
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GSK Investigational Site
WITHDRAWNPhoenix, Arizona, 85006, United States
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GSK Investigational Site
WITHDRAWNTucson, Arizona, 85741, United States
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GSK Investigational Site
RECRUITINGHuntington Park, California, 90057, United States
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GSK Investigational Site
RECRUITINGNational City, California, 91950, United States
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GSK Investigational Site
RECRUITINGWest Covina, California, 91790, United States
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GSK Investigational Site
RECRUITINGHialeah, Florida, 33012, United States
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GSK Investigational Site
RECRUITINGMiami, Florida, 33142, United States
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GSK Investigational Site
RECRUITINGChicago, Illinois, 60621, United States
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GSK Investigational Site
WITHDRAWNEl Dorado, Kansas, 67042, United States
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GSK Investigational Site
RECRUITINGLafayette, Louisiana, 70508, United States
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GSK Investigational Site
RECRUITINGMankato, Minnesota, 56002, United States
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GSK Investigational Site
RECRUITINGLincoln, Nebraska, 68516, United States
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GSK Investigational Site
RECRUITINGCincinnati, Ohio, 45245, United States
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GSK Investigational Site
RECRUITINGDallas, Texas, 75230-2571, United States
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GSK Investigational Site
WITHDRAWNDallas, Texas, 75235, United States
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GSK Investigational Site
RECRUITINGHouston, Texas, 77065, United States
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GSK Investigational Site
RECRUITINGRichmond, Texas, 77469, United States
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GSK Investigational Site
RECRUITINGRichmond, Texas, 77469, United States
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GSK Investigational Site
WITHDRAWNSan Antonio, Texas, 78244, United States
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GSK Investigational Site
COMPLETEDRoy, Utah, 84067, United States
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GSK Investigational Site
RECRUITINGSyracuse, Utah, 84075, United States
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GSK Investigational Site
RECRUITINGRichmond, Virginia, 23294, United States
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GSK Investigational Site
WITHDRAWNVienna, Virginia, 22180, United States
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GSK Investigational Site
WITHDRAWNBurgas, 8008, Bulgaria
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GSK Investigational Site
RECRUITINGGabrovo, 5300, Bulgaria
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GSK Investigational Site
RECRUITINGKyustendil, 2500, Bulgaria
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GSK Investigational Site
RECRUITINGPlovdiv, 4002, Bulgaria
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GSK Investigational Site
RECRUITINGRousse, 7000, Bulgaria
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GSK Investigational Site
RECRUITINGSevlievo, 5400, Bulgaria
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GSK Investigational Site
WITHDRAWNYambol, 8600, Bulgaria
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GSK Investigational Site
RECRUITINGAarhus N, 8200, Denmark
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GSK Investigational Site
RECRUITINGCopenhagen, DK-2100, Denmark
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GSK Investigational Site
RECRUITINGHvidovre, 2650, Denmark
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GSK Investigational Site
RECRUITINGOdense C, DK-5000, Denmark
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GSK Investigational Site
RECRUITINGTallinn, 10615, Estonia
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GSK Investigational Site
RECRUITINGTallinn, 10617, Estonia
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GSK Investigational Site
RECRUITINGHong Kong, 00852, Hong Kong
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GSK Investigational Site
RECRUITINGShatin, Hong Kong
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GSK Investigational Site
RECRUITINGKaunas, 47116, Lithuania
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GSK Investigational Site
RECRUITINGKaunas, LT-48259, Lithuania
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GSK Investigational Site
RECRUITINGDurango, 34000, Mexico
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GSK Investigational Site
RECRUITINGTlalpan, 14340, Mexico
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GSK Investigational Site
RECRUITINGTlalpan, 14340, Mexico
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GSK Investigational Site
RECRUITINGBydgoszcz, 85-796, Poland
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GSK Investigational Site
RECRUITINGTrzebnica, 55-100, Poland
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GSK Investigational Site
RECRUITINGWarsaw, 02-172, Poland
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