Efficacy, Immunogenicity and Safety of V503 in Chinese Women Aged 20-45 Years (V503-023)
Condition(s) studied
Investigational drug(s) / intervention(s)
V503: 9vHPV \[Types 6, 11, 16, 18, 31, 33, 45, 52, and 58\] L1 virus-like particle vaccine
Gardasil: qHPV \[Types 6, 11, 16, and 18\] L1 virus-like particle vaccine
Study summary
This study will evaluate the efficacy, immunogenicity and safety of 9-valent human papillomavirus (9vHPV; V503) vaccine in Chinese women 20 to 45 years of age. The primary hypotheses are: 9vHPV vaccine reduces the incidence of HPV 31-, 33-, 45-, 52-, and 58-related 12-month persistent infection at least 1 month post Dose 3, compared with quadrivalent HPV (qHPV) vaccine in women 20 to 45 years of age who are seronegative at Day 1 and polymerase chain reaction (PCR) negative Day 1 through Month 7 to the relevant HPV type; and 9vHPV vaccine induces non-inferior competitive luminex immunoassay (cLIA) geometric mean titers (GMTs) for each of HPV 6, 11, 16, and 18 one month post Dose 3, compared with qHPV vaccine in women 20 to 45 years of age who are seronegative at Day 1 and PCR negative Day 1 through Month 7 to the relevant HPV type.
Eligibility
Primary outcome measure(s)
- Stage I: Combined Incidence of HPV 31-, 33-, 45-, 52-, and 58-related 12-month Persistent Infection — 1 month post vaccination 3 (Month 7) up to Month 30
A 12-month persistent infection This endpoint is defined to have occurred if a participant who is positive for the same HPV type by the HPV PCR assay in the LVPP/EEC swabs, biopsy, ECC or definitive therapy samples obtained in 3 or more consecutive visits over a period of at least 12 months. Incidence is defined as the number of cases of persistent infection per 10,000 person-years of follow-up in a treatment arm. - Stage I: Geometric Mean Titers to HPV Types 6, 11, 16, and 18 Antibodies — 1-month post vaccination 3 (Month 7)
Serum antibodies to HPV types 6/11/16/18 are measured with a Competitive Luminex Immunoassay (cLIA). Titers are reported in milli Merck Units/mL. - Stage I: Percentage of Participants Who Report at Least 1 Solicited Injection-site Adverse Event — up to 8 days post any vaccination
An AE is defined as any untoward medical occurrence in a participant which does not necessarily have a causal relationship with study vaccine. An AE can therefore be any unfavourable and unintended sign, symptom, or disease temporally associated with the use of study vaccine or a protocol-specified procedure, whether or not considered related to the study vaccine or protocol-specified procedure. Any worsening of a preexisting condition that is temporally associated with the study vaccine or protocol-specified procedure is also an AE. AEs such as redness, swelling, and pain/tenderness/soreness at the injection site are recorded. - Stage I: Percentage of Participants Who Report at Least 1 Solicited Systemic Adverse Event — up to 30 days post any vaccination
An AE is defined as any untoward medical occurrence in a participant which does not necessarily have a causal relationship with study vaccine. An AE can therefore be any unfavourable and unintended sign, symptom, or disease temporally associated with the use of study vaccine or a protocol-specified procedure, whether or not considered related to the study vaccine or protocol-specified procedure. Any worsening of a preexisting condition that is temporally associated with the study vaccine or protocol-specified procedure is also an AE. Systemic AEs are those not categorized as injection-site AEs. - Stage I: Percentage of Participants Who Experience at Least 1 Serious Adverse Event (SAE) — Day 1 up to approximately Month 30
An AE is defined as any untoward medical occurrence in a participant which does not necessarily have a causal relationship with study vaccine. An AE can therefore be any unfavourable and unintended sign, symptom, or disease temporally associated with the use of study vaccine or a protocol-specified procedure, whether or not considered related to the study vaccine or protocol-specified procedure. Any worsening of a preexisting condition that is temporally associated with the study vaccine or protocol-specified procedure is also an AE. An SAE is an AE that results in death, is life threatening, results in a persistent or significant disability or incapacity, results in or prolongs an existing hospitalization, is a congenital anomaly or birth defect, or is another important medical event. - Stage II: Combined Incidence of HPV 31-, 33-, 45-, 52-, and 58-related CIN 2/3, AIS, and cervical cancer — Month 7 up to Month 90
This endpoint is defined to have occurred if on a single cervical biopsy, ECC, LEEP or Conization (cold knife/laser) specimen, there is: (a) a HPV Pathology Panel consensus diagnosis of CIN (grade 2 or 3), AIS, or cervical cancer; AND (b) detection of at least 1 of HPV types 31, 33, 45, 52 or 58 by Thinsection PCR in an adjacent section from the same tissue block. Disease incidence is defined as the number cases per 10,000 person-years of follow-up in a treatment arm. - Stages I/II: Percentage of Participants Who Experience at Least 1 Serious Adverse Event (SAE) — Day 1 up to approximately Month 90
An AE is defined as any untoward medical occurrence in a participant which does not necessarily have a causal relationship with study vaccine. An AE can therefore be any unfavourable and unintended sign, symptom, or disease temporally associated with the use of study vaccine or a protocol-specified procedure, whether or not considered related to the study vaccine or protocol-specified procedure. Any worsening of a preexisting condition that is temporally associated with the study vaccine or protocol-specified procedure is also an AE. An SAE is an AE that results in death, is life threatening, results in a persistent or significant disability or incapacity, results in or prolongs an existing hospitalization, is a congenital anomaly or birth defect, or is another important medical event.
Trial sites (6)
| Facility | City | Region | Status |
|---|---|---|---|
| Lingchuan Center for Disease Control and Prevention ( Site 0002) | Guilin | Guangxi | |
| Quanzhou Center for Disease Control and Prevention ( Site 0001) | Guilin | Guangxi | |
| Xiangyuan Center for Disease Control and Prevention ( Site 0003) | Changzhi | Shanxi | |
| Yanhu Center for Disease Control and Prevention of Yuncheng ( Site 0004) | Yuncheng | Shanxi | |
| Mianyang Center for Disease Control and Prevention ( Site 0005) | Mianyang | Sichuan | |
| Santai County Center for Disease Control and Prevention ( Site 0006) | Mianyang | Sichuan |
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This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
View NCT03998254 on ClinicalTrials.gov ↗ ← All trials in China