Evaluating the Gardasil-9 HPV vaccine in adults with HIV

Prospective Observational Immunogenicity Trial of Gardasil-9 HPV Vaccine in People Living With Adequately Managed HIV

Phase 4 Interventional Louisiana State University Health Sciences Center in New Orleans · NCT05266898

This study is testing how well the Gardasil-9 HPV vaccine works for adults with well-controlled HIV to see if their immune response is similar to those without HIV.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment250 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorLouisiana State University Health Sciences Center in New Orleans Academic / other
Drugs / interventionsprednisone, cART
Locations1 site (New Orleans, Louisiana)
Trial IDNCT05266898 on ClinicalTrials.gov

What this trial studies

This study aims to assess the immune response to the Gardasil-9 HPV vaccine in adults living with well-controlled HIV. It will measure the serum antibody response and observe short-term clinical outcomes related to HPV infections after vaccination. The study hypothesizes that individuals with controlled HIV will have a comparable immune response to the vaccine as those without HIV. Additionally, it will evaluate the long-term protection offered by the vaccine against HPV-related diseases.

Who should consider this trial

Good fit: Ideal candidates include HIV-positive adults with a CD4+ T cell count above 200 cells/ml and a controlled viral load.

Not a fit: Patients who are pregnant, have acute illnesses, or are on immune-modulating medications may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance HPV vaccination strategies for adults living with HIV, potentially reducing their risk of HPV-related cancers.

How similar studies have performed: Previous studies have shown promising results with HPV vaccination in HIV populations, but this specific approach with Gardasil-9 is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* HIV seropositive
* immune intact (CD4+ T cell count in peripheral blood \>200 cells/ml)
* HIV controlled (peripheral blood HIV viral load \<1,000 genome copies/mL)
* Stable on antiretroviral regimen for ≥3 months
* Gardasil-9 naive and age ≤45 OR
* documented receipt of 3 doses of Gardasil-4 or Gardasil-9 HPV vaccine

Exclusion Criteria:

* Medical contraindication for vaccination (vaccine-naive arm only)
* Women who are pregnant
* Acute illness
* Taking chronic steroids, \>0.5mg/kg prednisone or equivalent
* Taking immune modulating medications
* Received blood transfusion/blood products within the past 6 months
* Recipients of other vaccine products within the past month
* Inability to provide informed written consent

Where this trial is running

New Orleans, Louisiana

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 Papillomavirus VaccinesHuman Immunodeficiency VirusPapillomavirus InfectionSerologyCervical Intraepithelial NeoplasiaAnal Intraepithelial NeoplasiaOral Cavity InfectionGardasil-9 HPV vaccine
Last reviewed 2026-06-10 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.