HPV vaccine effectiveness in kidney transplant recipients

Prospective Analysis of Immunogenicity of the Nonavalent Human Papillomavirus Vaccination (GARDASIL 9) in Patients Post Solid Organ Transplant

Phase 4 Interventional Medical College of Wisconsin · NCT05557370

This study is testing how well the GARDASIL 9 HPV vaccine works in adults aged 18-45 who have had a kidney transplant to see if it helps boost their immune response.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment30 (estimated)
Ages18 Years to 45 Years
SexAll
SponsorMedical College of Wisconsin Academic / other
Locations1 site (Milwaukee, Wisconsin)
Trial IDNCT05557370 on ClinicalTrials.gov

What this trial studies

This study aims to evaluate the immune response to the GARDASIL 9 HPV vaccine in adults aged 18-45 who have received a solid organ transplant. It is a prospective, open-label, nonrandomized cohort study conducted at a single center over a period of 36 months, with participants receiving a 3-dose vaccination series. Blood samples will be collected at various intervals to measure HPV antibody levels and assess the immunogenicity of the vaccine in this immunocompromised population. The study will also explore the potential for future research through optional blood banking.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18-45 who are at least 6 months post-solid organ transplant and have not previously received the GARDASIL 9 vaccine.

Not a fit: Patients with a history of severe allergic reactions to vaccine components, those who have already completed the GARDASIL 9 vaccination series, or individuals diagnosed with HIV may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the understanding of HPV vaccine efficacy in immunocompromised patients, potentially leading to improved vaccination strategies.

How similar studies have performed: While there have been studies on HPV vaccination in general populations, this specific approach in immunocompromised transplant recipients is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Patient between the age of 18 and 45 years
2. Patient is at least 6 months post-solid-organ transplant and has not received GARDASIL 9.
3. Patient who can participate in their health care and sign informed consent.
4. Patient may have had bivalent or quadrivalent HPV vaccination previously.
5. Living or deceased donor transplant patient is eligible.

   Exclusion Criteria:
6. Contraindication: Hypersensitivity, including severe allergic reactions to yeast (a vaccine component), or after a previous dose of GARDASIL 9 or GARDASIL.
7. Patient had completed vaccination series with a nonavalent HPV vaccine (e.g., GARDASIL 9) in the past
8. Patient with a diagnosis of HIV.
9. Patient that endorses being currently pregnant.

Where this trial is running

Milwaukee, Wisconsin

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Chronic Kidney DiseasesKidney Transplant
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.