Randomized Trial of COVID-19 Booster Vaccinations (Cobovax Study)
Sponsor: The University of Hong Kong
This PHASE4 trial investigates COVID-19 Vaccination and is currently ongoing. The University of Hong Kong leads this study, which shows 8 recorded versions since 2021 — indicating limited longitudinal coverage. Longitudinal tracking of infectious disease trials helps identify durability of treatment effects.
Status Flow
Change History
8 versions recorded-
Feb 2026 — Present [monthly]
Unknown PHASE4
Status: Active Not Recruiting → Unknown
-
Sep 2024 — Feb 2026 [monthly]
Active Not Recruiting PHASE4
-
Jul 2024 — Sep 2024 [monthly]
Active Not Recruiting PHASE4
-
Jan 2024 — Jul 2024 [monthly]
Active Not Recruiting PHASE4
-
Mar 2022 — Jan 2024 [monthly]
Active Not Recruiting PHASE4
Status: Recruiting → Active Not Recruiting
▶ Show 3 earlier versions
-
Jan 2022 — Mar 2022 [monthly]
Recruiting PHASE4
Status: Not Yet Recruiting → Recruiting
-
Dec 2021 — Jan 2022 [monthly]
Not Yet Recruiting PHASE4
-
Oct 2021 — Dec 2021 [monthly]
Not Yet Recruiting PHASE4
First recorded
Eligibility Summary
No eligibility information available.
Contact Information
- The University of Hong Kong
For direct contact, visit the study record on ClinicalTrials.gov .