Vaccine antibody check: how long does protection last?
NCT ID NCT06280157
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study followed women who previously received 1 to 3 doses of an experimental Group B Strep (GBS) vaccine. The goal was to see how long their immune antibodies lasted by taking yearly blood samples for 2 to 5 years. No new vaccine or treatment was given—only observation.
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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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Simbec-Orion Clinical Pharmacology
Merthyr Tydfil, Pentrebach Merthyr Tydfil CF48 4DR, United Kingdom