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OpenTrials
Active, Not Recruiting

NCT Number: NCT02653118

Long-term Follow-up of Broad Spectrum Human Papillomavirus (HPV) Vaccine Study in Women (V503-021)

Protocol V503-021 is a long-term follow-up study of the V503-001 base study (NCT00543543) to evaluate the safety, immunogenicity, and long-term effectiveness of V503 vaccine in preventing cervical cancer and related precancers caused by human papillomavirus (HPV) types 16, 18, 31, 33, 45, 52, and 58. Because of the high retention of V503-001 participants from the Nordic countries, and the highly efficient screening and surveillance system there, study V503-021 will evaluate only participants from V503-001 sites in Denmark, Norway, and Sweden. The hypothesis is that V503 vaccine will remain effective for at least 30 years after the start of vaccination.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

Key information

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Randomized into the V503-001 (NCT00543543) study from a Denmark, Norway, or Sweden site and participated in the study by receiving either the selected dose formulation of V503 or GARDASIL
  • Agrees to allow passive follow-up, analysis of biopsy specimens, future contact from the National Registry Study Centers, and serum collection

Exclusion criteria

  • There are no exclusion criteria

Treatment and study plan

V503

Biological

GARDASIL

Biological

Primary outcomes

  1. Combined Incidence of HPV Type 16, 18, 31, 33, 45, 52, or 58-related Cervical Intraepithelial Neoplasia (CIN) Grades 2 or 3, Adenocarcinoma In Situ (AIS), and Cervical Cancer in Cohort 1

    Time frame: Up to 30 years after vaccination in V503-001 base study

Sponsors and collaborators

Lead sponsor

Merck Sharp & Dohme LLC

Industry

Registry information

Official study title

A Registry-Based Extension of Protocol V503-001 in Countries With Centralized Cervical Cancer Screening Infrastructures to Evaluate the Long-Term Effectiveness, Immunogenicity, and Safety of Multivalent Human Papillomavirus (HPV) L1 Virus-Like Particle (VLP) Vaccine as Administered to 16- to 26- Year-Old Women

Important dates

Study start
2016
Primary completion
2040
Study completion
2040
First posted
Jan 12, 2016
Registry last updated
Nov 12, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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