Assessing Durable Antibody Response to HPV Vaccination
Assessing Immunological Basis of Durable Antibody Responses to 9-valent HPV Vaccination
1 other identifier
interventional
17
1 country
2
Brief Summary
This is a single center, longitudinal cohort study in which subjects will receive 9-valent HPV vaccine according to package insert (i.e., one dose of 9-valent HPV vaccine on day (D) 0 followed by a second dose 2 months later and a third dose 6 months later). Immune responses in the blood, saliva, bone marrow, and lymph nodes will be assessed in subjects receiving the HPV vaccine. Blood samples for immunologic testing will be collected at screening (from D-60 to D-45), on D0 (before vaccination), D1 (optional visit), D7±1, D14±5, D30±5, D60±5 (Visit 8, before vaccination), Visit 8 +1 day (optional visit), Visit 8 + 7±1 days, Visit 8 + 14±5 days, Visit 8 + 30±5 days, D180±5 (Visit 13, before vaccination), Visit 13 + 7±1 days, Visit 13 + 14±5 days, Visit 13 + 30±5 days, D365±14, D730±14, D1095±14, D1460±14, D1825±30. Saliva samples for antibody testing will be collected on D0 (before vaccination), D30, D60 (before vaccination), Visit 8 + 30±5 days, D180 (before vaccination), Visit 13 + 30±5 days, D365, and D730. Axillary lymph node sampling by fine needle aspiration will be done 3 times per group. Group 1 will have lymph node sampling done D-30 to D0, D14, and D30. Group 2 will have lymph node sampling done D60, Visit 8 + 14±5 days, and Visit 8 + 30±5 days. Group 3 will have lymph node sampling D180, Visit 13 + 14±5 days, and Visit 13 + 30±5 days. Bone marrow sampling will be done for all groups at D730±14 and D1825±30.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_4
Started Dec 2021
Longer than P75 for phase_4
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 27, 2021
CompletedFirst Posted
Study publicly available on registry
September 1, 2021
CompletedStudy Start
First participant enrolled
December 21, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 23, 2024
CompletedResults Posted
Study results publicly available
October 23, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2026
CompletedOctober 23, 2025
October 1, 2025
2.8 years
August 27, 2021
September 23, 2025
October 9, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Number of Participants With a Minimum Four-fold Rise in Post-vaccination HPV-16 and HPV-18 Neutralizing Antibody Titers
Determining the number of participants with a minimum four-fold rise in post-vaccination HPV-16 and HPV-18 neutralizing antibody titers determined using an HPV pseudovirus neutralization assay
30 days after receiving the third and final vaccine dose (approximately Day 210 after first vaccine dose)
Secondary Outcomes (1)
Change in Number of HPV-specific Memory B Cell (Bmem) Response From Baseline
Baseline (Day 0), Day 30, Day 180, Day 210, Day 365, Day 730 post-intervention
Study Arms (3)
Group 1: Lymph node sampling at D-30 to D0, D14 and D30
EXPERIMENTALParticipants will receive 3 doses of 9-valent HPV vaccine (Gardasil 9) at D0, D60, and D180. Group 1 will undergo an FNA at D-30 to D0. Participants will repeat the procedure at D14±5 and D30±5. Bone marrow sampling will be done for all groups at D730 and D1825.
Group 2: Lymph node sampling at D60, D74 and D90
EXPERIMENTALParticipants will receive 3 doses of 9-valent HPV vaccine (Gardasil 9) at D0, D60, and D180. Participants will undergo an FNA on the same day, but prior to, the second vaccine dose (D60±5; Visit 8) or up to 5 days before. Participants will repeat the procedure at Visit 8 + 14±5 days and Visit 8 + 30±5 days. Bone marrow sampling will be done for all groups at D730 and D1825.
Group 3: Lymph node sampling at D180, D194 and D210
EXPERIMENTALParticipants will receive 3 doses of 9-valent HPV vaccine (Gardasil 9) at D0, D60, and D180. Group 3 will undergo an FNA on the same day, but prior to, the third vaccine dose (D180±5; Visit 13) or up to 5 days before. Participants will repeat the procedure at Visit 13 + 14±5 days and Visit 13 + 30±5 days. Bone marrow sampling will be done for all groups at D730 and D1825.
Interventions
Participants will receive 3 doses of 9-valent HPV vaccine (Gardasil 9) at D0, D60, and D180 The 9-valent HPV vaccine, or Gardasil-9, is a non-infectious recombinant vaccine prepared from the purified virus-like particles (VLPs) of the major capsid (L1) protein of HPV Types 6, 11, 16, 18, 31, 33, 45, 52, and 58. Gardasil-9 is supplied as a 0.5-mL single-dose vial or 0.5-mL single-dose prefilled Luer Lock syringe with tip cap.
1-2% lidocaine injections. 1% lidocaine, an FDA approved local anesthetic, will be injected subcutaneously to numb the area of the lymph node being sampled; whereas 1-2% lidocaine will be injected into the tissue surrounding the area where the bone marrow will be removed. In adults the recommended dose is 7 mg/kg with a maximum of 500 mg.
Eligibility Criteria
You may qualify if:
- Individuals aged 18-45 years old (inclusive), as the HPV vaccine is approved for this age range in adults
- BMI ≤ 32.
- Able to understand and give informed consent (provided in American English).
- Must be in good health based on physical examination, vital signs, medical history, and the investigator's clinical judgment.
- Must be available and willing to participate for the duration of this study
- Must be willing to undergo lymph node fine needle aspiration and bone marrow aspiration
- Must be willing to consent to the future use of remaining (residual) samples/specimens.
You may not qualify if:
- Ever received a dose of an HPV vaccine
- HPV 6, 11, 16, 18, 31, 33, 45, 52 or 58 seropositivity
- Any history of genital warts, an abnormal pap smear, or positive HPV DNA test
- Has known allergy or history of anaphylaxis or other serious adverse reaction to a vaccine or vaccine products
- Has known allergy or history of anaphylaxis to yeast or products containing yeast
- Any allergy to lidocaine.
- Pregnancy or breast feeding.
- Subjects who believe they cannot tolerate the lymph node fine needle aspirate or bone marrow aspirate procedures without sedation
- Any history of lymphoma involving axillary nodes, any history of breast cancer, bilateral inflammatory process of upper arms in the past 2 weeks, prior breast or axillary biopsy and/or surgery that in the opinion of the investigator would affect the immune response results.
- Local infection, lymphadenitis, or rash in targeted area.
- Received any vaccine from 14 days before vaccine dose until 30 days after each vaccine dose.\*
- Volunteers with fever (≥100.4 F or 38°C regardless of the route) within 3 days prior to vaccination.\*
- History of or presence of severe co-morbidities as determined by the investigator, including autoimmune disease, or clinically significant cardiac, pulmonary, gastrointestinal, hepatic, rheumatologic, renal disease, thrombocytopenia, and grade 4 hypertension\*.
- \*Grade 4 hypertension per CTCAE criteria is defined as Life-threatening consequences (e.g., malignant hypertension, transient or permanent neurologic deficit, hypertensive)
- History of a bleeding disorder or currently taking anti-coagulant products\* (e.g. warfarin, direct thrombin inhibitors, heparin products, etc.), anti-platelet products, and/or NSAIDs including aspirin.
- +13 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Emory Universitylead
Study Sites (2)
The Hope Clinic of Emory University
Atlanta, Georgia, 30030, United States
Winship Cancer Institute
Atlanta, Georgia, 30322, United States
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr. Erin Scherer
- Organization
- Emory University
Study Officials
- PRINCIPAL INVESTIGATOR
Erin Scherer, Ph.D.
Emory University
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Professor
Study Record Dates
First Submitted
August 27, 2021
First Posted
September 1, 2021
Study Start
December 21, 2021
Primary Completion
October 23, 2024
Study Completion
May 1, 2026
Last Updated
October 23, 2025
Results First Posted
October 23, 2025
Record last verified: 2025-10
Data Sharing
- IPD Sharing
- Will share
- Time Frame
- Available immediately following publication. No end date.
- Access Criteria
- De-identified data will be published in an open access journal with no access restrictions; De-identified RNA Seq data will be deposited at NCBI/ Gene Expression Omnibus or similar public database with no access restrictions
Individual participant data, after deidentification, and RNA sequencing data