Safety and Immunogenicity of Extended 2-dose Regimens of 9-valent Human Papillomavirus (9vHPV) Vaccine (V503-069)
Public ClinicalTrials.gov record NCT04708041. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Phase 3 International, Multicenter, Open-label Study to Evaluate the Safety and Immunogenicity of 9vHPV Vaccine Administered as 2-dose Regimen With Extended Dosing Intervals in 9- to 14-Year Old Boys and Girls Compared With a Standard 3-dose Regimen in 16- to 26-Year Old Women
Study identification
- NCT ID
- NCT04708041
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Merck Sharp & Dohme LLC
- Industry
- Enrollment
- 700 participants
Conditions and interventions
Conditions
Interventions
- 9vHPV vaccine Biological
Biological
Eligibility (public fields only)
- Age range
- 9 Years to 26 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Mar 14, 2021
- Primary completion
- Oct 22, 2029
- Completion
- Oct 22, 2029
- Last update posted
- Apr 19, 2025
2021 – 2029
United States locations
- U.S. sites
- 14
- U.S. states
- 5
- U.S. cities
- 13
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Kaiser Permanente Daly City ( Site 0044) | Daly City | California | 94015 | — |
| Kaiser Permanente Oakland ( Site 0020) | Oakland | California | 94611 | — |
| Kaiser Permanente Roseville ( Site 0047) | Roseville | California | 95661 | — |
| Kaiser Permanente Sacramento ( Site 0043) | Sacramento | California | 95815 | — |
| Kaiser Permanente South Sacramento ( Site 0045) | Sacramento | California | 95823 | — |
| Kaiser Permanente San Jose ( Site 0046) | San Jose | California | 95119 | — |
| Kaiser Permanente Santa Clara ( Site 0042) | Santa Clara | California | 95051 | — |
| Encompass Clinical Research ( Site 0022) | Spring Valley | California | 91978 | — |
| Advanced Research for Health Improvement, LLC-Pediatrics ( Site 0007) | Naples | Florida | 34102 | — |
| Tribe Clinical Research, LLC ( Site 0010) | Greenville | South Carolina | 29607 | — |
| Coastal Carolina Research Center ( Site 0032) | North Charleston | South Carolina | 29405 | — |
| Coastal Bend Clinical Research ( Site 0025) | Corpus Christi | Texas | 78413 | — |
| University of Texas Medical Branch-Sealy Institute for Vaccine Sciences Clinical Trials Program ( Si | Galveston | Texas | 77555 | — |
| MultiCare Rockwood Cheney Clinic ( Site 0038) | Cheney | Washington | 99004 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 16 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04708041, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Apr 19, 2025 · Synced Jul 22, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04708041 live on ClinicalTrials.gov.