Clinical trial · Interventional
A Clinical Study of V503 in Chinese Females Who Have Previously Received a Bivalent Human Papillomavirus (HPV) Vaccine (V503-108)
A Phase 3 Randomized, Placebo-Controlled, Double-Blind Study to Evaluate the Immunogenicity and Safety of V503 in Chinese Females Aged 10 to 45 Years Who Have Previously Received a Bivalent Human Papillomavirus (HPV) Vaccine
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
Researchers want to learn if V503 (also called the 9-valent human papillomavirus \[9vHPV\] vaccine, recombinant) can induce an immune response to HPV types 6, 11, 16, 18, 31, 33, 45, 52, and 58 in Chinese females who previously received the bivalent HPV (2vHPV) vaccine. The 9vHPV vaccine protects against diseases caused by 9 types of HPV (6, 11, 16, 18, 31, 33, 45, 52, and 58) and the 2vHPV vaccine protects against diseases caused by 2 types of HPV (16 and 18). The goals of the trial are to learn: * If the 9vHPV vaccine can induce an immune response to HPV types 6, 11, 16, 18, 31, 33, 45, 52, and 58 in participants who received the 2vHPV vaccine * About the safety of the 9vHPV vaccine in prior 2vHPV vaccine recipients
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Papillomavirus Infections | — | UNRESOLVED | — |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Placebo | Biological | — | UNRESOLVED |
| V503 | Biological | — | UNRESOLVED |
Design
Arms and outcomes
Arms (4)
- type
- EXPERIMENTAL
- label
- Prior 2vHPV Vaccine Recipients Receiving V503
- description
- Participants will receive V503 at Day 1, Month 2, and Month 6
- interventionNames
- Biological: V503
- type
- PLACEBO_COMPARATOR
- label
- Prior 2vHPV Vaccine Recipients Receiving Placebo
- description
- Participants will receive Placebo at Day 1, Month 2, and Month 6
- interventionNames
- Biological: Placebo
- type
- EXPERIMENTAL
- label
- HPV Vaccine-Naïve Participants Receiving V503
- description
- Participants will receive V503 at Day 1, Month 2, and Month 6
Eligibility
Eligibility (as posted)
- Sex
- Female
- Minimum age
- 10 Years
- Maximum age
- 45 Years
Show eligibility criteria text
Inclusion Criteria: The main inclusion criteria include but are not limited to the following: * For participants to be enrolled in prior 2vHPV (bivalent human papillomavirus \[HPV\] vaccine) vaccine groups: has received at least one dose of any one of the three currently marketed 2vHPV vaccines, with the last dose administered at least one year prior to Day 1. * For participants to be enrolled in HPV vaccine naïve groups: has never received any HPV vaccine. Exclusion Criteria: The main exclusion criteria include but are not limited to the following: * Has known thrombocytopenia or any coagulation disorder that would contraindicate intramuscular injections. * Has a history of abnormal Pap test showing low-grade squamous intraepithelial lesion (LSIL), high-grade squamous intraepithelial lesion (HSIL) or atypical squamous cells - undetermined significance (ASC-US), atypical squamous cells - cannot exclude HSIL (ASC-H), atypical glandular cells, or biopsy showing CIN, AIS, or cervical cancer. * Has a history of external genital wart, vulvar intraepithelial neoplasia (VIN), vaginal intraepithelial neoplasia (VaIN), AIN, vulvar cancer, vaginal cancer, or anal cancer. * Has a history of a positive test for HPV (including HPV types not in the vaccine). * Is currently immunocompromised or has been diagnosed as having congenital or acquired immunodeficiency, human immunodeficiency virus (HIV) infection, lymphoma, leukemia, systemic lupus erythematosus (SLE), rheumatoid arthritis, juvenile rheumatoid arthritis (JRA), inflammatory bowel disease, or other autoimmune condition. * Has a history of splenectomy. * Has received, is receiving, or plans to receive the following immunosuppressive therapies: radiation therapy, cyclophosphamide, azathioprine, methotrexate, any chemotherapy, cyclosporin, leflunomide (Arava™), tumor necrosis factor alpha (TNF-α) antagonists, monoclonal antibody therapies (including rituximab \[Rituxan™\]), intravenous gamma globulin (IVIG), antilymphocyte sera, or other therapy known to interfere with the immune response. With regard to systemic corticosteroids, a participant will be excluded if the participant is currently receiving steroid therapy, has recently (defined as within 2 weeks of enrollment) received such therapy, or has received 2 or more courses of corticosteroids (orally or parenterally) lasting at least 1 week within 12 months prior to enrollment. Participants using inhaled, nasal, or topical corticosteroids are considered eligible for the study. * Has received, is receiving, or plans to receive any immune globulin product (including RhoGAM™ \[Ortho-Clinical Diagnostics\]) or blood derived product other than IVIG. * Has participated in an HPV vaccine clinical trial and has received either active agent or placebo. * Has received any marketed HPV vaccine other than the 2vHPV vaccines.
References
Publications (0)
Data not yet available