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Intradermal, Fractional Dose of HPV Vaccines:

NCT04235257 · Status: ACTIVE_NOT_RECRUITING · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 40

Last updated 2026-05-05

No results posted yet for this study

Summary

This randomized phase IV trial compares fractional dose of bivalent HPV vaccine to fractional dose of nonavalent HPV vaccine among men and women aged 27-45 years in Seattle, Washington. Participants will have immune response assessed at baseline, 4 weeks, 6 months, 12 months, and 24 months.

Conditions

Interventions

BIOLOGICAL

HPV vaccine

Gardasil 9 Bivalent HPV VLP Vaccine, one-fifth dose Nonavalent HPV VLP Vaccine, one-fifth dose

Sponsors & Collaborators

Principal Investigators

  • Anna Wald, MD · University of Washington

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
27 Years
Max Age
45 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2020-11-01
Primary Completion
2026-12-31
Completion
2026-12-31
FDA Drug
Yes

Countries

  • United States

Study Locations

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Entities

Drugs
Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04235257 on ClinicalTrials.gov