Efficacy, Immunogenicity, and Safety of V503 in Chinese Males (V503-052)
- Conditions
- Papillomavirus Infections
- Interventions
- Other: PlaceboBiological: 9vHPV Vaccine
- Registration Number
- NCT05285826
- Lead Sponsor
- Merck Sharp & Dohme LLC
- Brief Summary
This study will evaluate the efficacy, immunogenicity, and safety of 9-valent human papillomavirus (9vHPV; V503) vaccine in Chinese men 20 to 45 years of age. It will enroll heterosexual men (HM) and men who have sex with men (MSM), will be stratified by age and sexual orientation, and will have two stages. The primary hypothesis of Stage I is: 9vHPV vaccine reduces the combined incidence of HPV 6-, 11-, 16-, 18-, 31-, 33-, 45-, 52-, and 58-related external genital and intra-anal 12-month persistent infection (PI) compared with placebo in males 20 to 45 years of age who are seronegative at Day 1 and polymerase chain reaction (PCR) negative from Day 1 through one month post-Dose 3 to the relevant HPV type. The primary hypothesis of Stages I and II combined is: 9vHPV vaccine reduces the combined incidence of HPV 6-, 11-, 16-, 18-, 31-, 33-, 45-, 52-, and 58-related genital warts, penile/perianal/perineal intraepithelial neoplasia (PIN), or penile/perianal/perineal cancer compared with placebo in males 20 to 45 years of age who are seronegative at Day 1 and PCR negative from Day 1 through one month post-Dose 3 to the relevant HPV type.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- ACTIVE_NOT_RECRUITING
- Sex
- Male
- Target Recruitment
- 8100
- Is a Chinese male.
- Has no more than 5 lifetime sexual partners.
- Has a history of known prior vaccination with an HPV vaccine.
- Has a history of HPV-related external genital lesions, HPV-related intra-anal lesions, or HPV-related head and neck cancer.
- Has a history of severe allergic reaction that required medical intervention.
- Has received immune globulin or blood-derived products in the past 3 months or plans to receive any before Month 7 of the study.
- Has a history of splenectomy, is currently immunocompromised, or has been diagnosed with immunodeficiency, human immunodeficiency virus (HIV), lymphoma, leukemia, systemic lupus erythematosus, rheumatoid arthritis, juvenile rheumatoid arthritis, inflammatory bowel disease, or other autoimmune condition.
- Has received immunosuppressive therapy in the past year, excluding inhaled, nasal, or topical corticosteroids and certain regimens of systemic corticosteroids.
- Has a known thrombocytopenia or coagulation disorder that would contraindicate IM injections.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Placebo Placebo Participants will receive a single 0.5 mL IM injection of placebo at Day 1, Month 2, and Month 6. V503 9vHPV Vaccine Participants will receive a single 0.5 mL intramuscular (IM) injection of V503 at Day 1, Month 2, and Month 6.
- Primary Outcome Measures
Name Time Method Stages I and II: Combined Incidence of HPV 6-, 11-, 16-, 18-, 31-, 33-, 45-, 52-, and 58-related Genital Warts, PIN, or Penile/Perianal/Perineal Cancer Up to approximately 78 months This endpoint is defined as having occurred if on a single biopsy or excised tissue from a participant, there is: (a) a pathology panel consensus diagnosis of genital warts, PIN of any grade, or penile/perianal/perineal cancer; and (b) detection of at least 1 of HPV types 6, 11, 16, 18, 31, 33, 45, 52 or 58 by Thinsection PCR in an adjacent section from the same tissue block.
Stage I: Combined Incidence of HPV 6-, 11-, 16-, 18-, 31-, 33-, 45-, 52-, and 58-related External Genital and Intra-anal 12-month Persistent Infection Up to approximately 30 months This endpoint is defined as having occurred if a participant is positive for the same HPV type by the HPV PCR assay in the penile, scrotum, perineal, perianal and intra-anal swabs, biopsy, or excised samples obtained in 3 or more consecutive visits over a period of at least 12 months.
- Secondary Outcome Measures
Name Time Method Stage 1: Combined Incidence of HPV 6-, 11-, 16-, 18-, 31-, 33-, 45-, 52-, and 58-related External Genital and Intra-anal 6-month Persistent Infection Up to approximately 30 months This endpoint is defined as having occurred if a participant is positive for the same HPV type by the HPV PCR assay in the penile, scrotum, perineal, perianal and intra-anal swabs, biopsy, or excised samples obtained in 2 or more consecutive visits over a period of at least 6 months.
Stage I: Percentage of Participants Who Report at Least 1 Solicited Systemic AE Day 1 through Day 8 following 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) Up to approximately 30 months 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.
Stages I and II: Percentage of Participants Who Experience at Least 1 SAE Up to approximately 78 months 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 1: Geometric Mean Titers (GMTs) to HPV Types 6, 11, 16, 18, 31, 33, 45, 52, and 58 at One Month Post-Dose 3 Month 7 GMTs to HPV Types 6, 11, 16, 18, 31, 33, 45, 52, and 58 will be measured with a Competitive Luminex Immunoassay (cLIA).
Stage 1: Percentage of Participants Achieving Seroconversion to HPV 6, 11, 16, 18, 31, 33, 45, 52, or 58 at One Month Post-Dose 3 Month 7 A participant who changes serostatus from seronegative at Day 1 to seropositive at one month post-Dose 3 for a given HPV type is considered to have achieved seroconversion for that type. A participant with a titer at or above the seropositivity cutoff for a given HPV type, as measured by cLIA, is considered seropositive for that type.
Stages I and II: Combined Incidence of HPV 6-, 11-, 16-, 18-, 31-, 33-, 45-, 52-, and 58-related Anal Intraepithelial Neoplasia (AIN) or Anal Cancer (MSM participants only) Up to approximately 78 months This endpoint is defined to have occurred if on a single biopsy or excised tissue from a participant, there is: (a) a pathology panel consensus diagnosis of AIN of any grade or anal cancer; and (b) detection of at least 1 of HPV types 6, 11, 16, 18, 31, 33, 45, 52 or 58 by Thinsection PCR in an adjacent section from the same tissue block.
Stage I: Percentage of Participants Who Report at Least 1 Solicited Injection-site Adverse Event (AE) Day 1 through Day 8 following 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. Solicited injection-site AEs such as erythema, swelling, pain, and induration at the injection site will be recorded.
Trial Locations
- Locations (34)
Beijing Youan Hospital ( Site 0001)
🇨🇳Bejing, Beijing, China
The Second Affiliated Hospital Chongqing Medical University ( Site 0052)
🇨🇳Chongqing, Chongqing, China
Southern Medical University Nanfang Hospital-Center for Drug Clinical Research ( Site 0031)
🇨🇳Guangzhou, Guangdong, China
Chongqing Public Health Medical Center ( Site 0003)
🇨🇳Chongqing, Chongqing, China
The First Hospital of Lanzhou University ( Site 0034)
🇨🇳Lanzhou, Gansu, China
Liucheng County Centers for Disease Control and Prevention ( Site 0045)
🇨🇳Liuzhou, Guangxi, China
The University of Hong Kong - Shenzhen Hospital ( Site 0049)
🇨🇳Shenzhen, Guangdong, China
Wuhan Union Hospital ( Site 0032)
🇨🇳Wuhan, Hubei, China
Loudi Disease Prevention and Control Center Zhiyebing Prevention And Treatment Hospital ( Site 0015)
🇨🇳Louxing District, Hunan, China
The Third Xiangya Hospital of Central South University ( Site 0033)
🇨🇳Changsha, Hunan, China
Xiangtan Disease Prevention and Control Center ( Site 0030)
🇨🇳XiangTan, Hunan, China
Xiangxiang Disease Prevention and Control Center ( Site 0016)
🇨🇳Xiangxiang, Hunan, China
Qiyang Center for Disease Control and Prevention ( Site 0014)
🇨🇳Yongzhou, Hunan, China
The Second Hospital of Nanjing (Tangshan Branch) ( Site 0028)
🇨🇳Nanjing, Jiangsu, China
Yuanqu Center for Disease Control and Prevention ( Site 0019)
🇨🇳Yuncheng, Shanxi, China
Center for Disease Control and Prevention of Rong An ( Site 0046)
🇨🇳Liuzhou, Guangxi, China
Hunan Provincial Center for Disease Control and Prevention ( Site 0040)
🇨🇳Changsha, Hunan, China
Liaoning University of Traditional Chinese Medicine Affiliated Hospital ( Site 0048)
🇨🇳Shenyang, Liaoning, China
The first affiliated hospital of China medical university ( Site 0041)
🇨🇳Shenyang, Liaoning, China
Yongji Center for Disease Control and Prevention ( Site 0026)
🇨🇳Yuncheng, Shanxi, China
Yanhu Center for Disease Control and Prevention of Yuncheng ( Site 0018)
🇨🇳Yuncheng, Shanxi, China
Ruicheng Center for Disease Control and Prevention ( Site 0025)
🇨🇳Yuncheng, Shanxi, China
Yuechi Disease Prevention and Control Center ( Site 0009)
🇨🇳Guang'an, Sichuan, China
Mianyang Center for Disease Control and Prevention ( Site 0007)
🇨🇳Mianyang, Sichuan, China
Dazhu Disease Prevention and Control Center ( Site 0010)
🇨🇳Dazhou, Sichuan, China
Santai County Center for Disease Control and Prevention ( Site 0008)
🇨🇳Mianyang, Sichuan, China
Neijiang Center for Disease Control and Prevention ( Site 0011)
🇨🇳Neijiang, Sichuan, China
Tianjin Second People's Hospital ( Site 0004)
🇨🇳Tianjin, Tianjin, China
Tianjin People' s Hospital ( Site 0038)
🇨🇳Tianjin, Tianjin, China
Binchuan County Center for Disease Control and Prevention ( Site 0022)
🇨🇳Dali, Yunnan, China
Xiangyun County Center for Disease Control and Prevention ( Site 0021)
🇨🇳Dali, Yunnan, China
Yunnan Provincial Infectious Disease Hospital ( Site 0042)
🇨🇳Kunming City, Yunnan, China
First Affiliated Hospital of Kunming Medical University ( Site 0051)
🇨🇳Kunming, Yunnan, China
Zhejiang University School of Medicine - Affiliated Wenzhou Traditional Chinese Medicine Hospital (W
🇨🇳Wenzhou Shi, Zhejiang, China