Flu vaccine study halted after just 2 volunteers
NCT ID NCT07386509
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study aimed to compare how the immune system responds to two different seasonal flu vaccines given at the same time. Healthy adults aged 18-49 who had not received a flu shot in at least three years were eligible. The study was terminated early and only enrolled 2 participants, so no meaningful conclusions can be drawn.
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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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Locations
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Washington University School of Medicine Infectious Disease Clinical Trials Unit.
St Louis, Missouri, 63110, United States
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