A Study of Gardasil (V501) in Preadolescents and Adolescents (V501-018)
A Safety and Immunogenicity Study of Quadrivalent HPV (Types 6, 11, 16, 18) L1 Virus-Like Particle (VLP) Vaccine in Preadolescents and Adolescents (Base Study). A Long Term Immunogenicity, Safety, and Effectiveness Study of GARDASIL (Human Papillomavirus [Types 6, 11, 16, 18] Recombinant Vaccine) Among Adolescents Who Received GARDASIL at 9-18 Years of Age (Extension Study).
Sponsor: Merck Sharp & Dohme LLC
This PHASE3 trial investigates Human and Papillomavirus Infections and is currently completed. Merck Sharp & Dohme LLC leads this study, which shows 9 recorded versions since 2003 — indicating limited longitudinal coverage. Longitudinal tracking of infectious disease trials helps identify durability of treatment effects.
Status Flow
Change History
9 versions recorded-
Sep 2024 — Present [monthly]
Completed PHASE3
-
Jul 2024 — Sep 2024 [monthly]
Completed PHASE3
-
Jun 2022 — Jul 2024 [monthly]
Completed PHASE3
-
Dec 2021 — Jun 2022 [monthly]
Completed PHASE3
-
Jan 2021 — Dec 2021 [monthly]
Completed PHASE3
▶ Show 4 earlier versions
-
Jun 2018 — Jan 2021 [monthly]
Completed PHASE3
-
Mar 2018 — Jun 2018 [monthly]
Completed PHASE3
-
Feb 2017 — Mar 2018 [monthly]
Completed PHASE3
-
Jan 2017 — Feb 2017 [monthly]
Completed PHASE3
First recorded
Oct 2003
Trial started
Per CT.gov start date — pre-dates our first snapshot
Eligibility Summary
No eligibility information available.
Contact Information
- Merck Sharp & Dohme LLC
For direct contact, visit the study record on ClinicalTrials.gov .
Study Locations
No location information available.