Immunogenicity of the 9-Valent Human Papillomavirus Recombinant Vaccine in People With Idiopathic CD4 T Cell Lymphocytopenia
A Phase 2, Open-Label Study to Assess the Immunogenicity of the 9-Valent Human Papillomavirus Recombinant Vaccine in Patients With Idiopathic CD4 T Cell Lymphocytopenia
Other study identifiers
Sponsor study identifier
Secondary identifiers
interventional
54
1 country
1
Study Start
February 4, 2019
Actual (reported)Primary Completion
December 31, 2026
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Study Completion
December 31, 2026
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Brief Summary
Background: Diseases related to human papillomavirus (HPV) include warts, lesions, and cancers. ICL is idiopathic CD4 T cell lymphocytopenia. People with this rare disease get more HPV-related diseases than other people do. The diseases are more severe and harder to treat in people with ICL. Researchers want to see if the vaccine GARDASIL 9 can help people with ICL. Objective: To study the effects of the vaccine GARDASIL 9 in people with ICL. Eligibility: Adults ages 18-65 with ICL Healthy volunteers the same age Design: Participants will be screened with a physical exam, medical history, and blood and pregnancy tests. Participants will have a baseline visit with:
- Physical exam
- Medical history
- Oral rinse collection. Participants will gargle a small amount of a saline solution, then spit it into a cup.
- Apheresis. Blood will be removed through a needle in an arm. A machine will separate the blood and keep some parts for research. The rest will be returned to the participant through a needle in the other arm.
- Examination for HPV-related disease. Female participants will have a Pap test. Researchers will collect swabs from some participants skin or genital lesions. Participants will get 3 doses of the study vaccine over 6 months as a shot in the upper arm or thigh muscle. They will repeat the screening tests each vaccine visit. Participants will record their temperature and side effects for several days after vaccinations. Participants may have visits after vaccinations. Participants will have 2 follow-up visits in the 18 months after the last vaccine. They will repeat most of the baseline tests.
Registry Overview
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
- Recruitment status
- active not recruiting
- Actual enrollment (reported)
- 54 participants
- Study completion date
December 31, 2026
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
- Listed locations
- 1 countries · 1 sites
Trial Relationships
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Study Timeline
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
First Submitted
May 8, 2018
Actual (reported)First Posted
May 9, 2018
Actual (reported)Study Start
February 4, 2019
Actual (reported)Primary Completion
December 31, 2026
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Study Completion
December 31, 2026
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
- Last Updated
- October 29, 2026
- Status Verified
- March 10, 2026
- Last Update Submitted
- October 28, 2026