A Study of V503 (A Multivalent Human Papillomavirus [HPV] L1 Virus-Like Particle [VLP] Vaccine) in Preadolescents and Adolescents (V503-002)
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ClinicalTrials.gov Identifier: NCT00943722 |
Recruitment Status :
Completed
First Posted : July 22, 2009
Results First Posted : January 13, 2015
Last Update Posted : October 3, 2022
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Sponsor:
Merck Sharp & Dohme LLC
Information provided by (Responsible Party):
Merck Sharp & Dohme LLC
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Study Type | Interventional |
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Study Design | Allocation: Randomized; Intervention Model: Parallel Assignment; Masking: None (Open Label); Primary Purpose: Prevention |
Conditions |
Cervical Cancers Vulvar Cancer Vaginal Cancer Genital Lesions PAP Test Abnormalities HPV Infections |
Intervention |
Biological: V503 |
Enrollment | 3074 |
Participant Flow
Recruitment Details | The base study was a 12-month study that collected immunogenicity data through Month 7 and safety data through Month 12. |
Pre-assignment Details |
Extension study 1 (EXT1) collected data to Month 36. Extension study 2 (EXT2) collected long-term data through ~Month 126. No study vaccine was administered. Per protocol, participants enrolled in the 16- to 26-year-old arm in the base study were not included in the extension study. Per protocol, the extension study included data from 9- to 15-year-old females regardless of lot administered (arm: "Extension Study: 9- to 15- Year Old Females"). |
Arm/Group Title | Base Study: 9- to 15-Year-Old Females (Lot 1) | Base Study: 9- to 15-Year-Old Females (Lot 2) | Base Study: 9- to 15-Year-Old Females (Lot 3) | Base Study: 9- to 15-Year-Old Males (Lot 1) | Base Study: 16- to 26-Year-Old Females (Lot 1) | Extension Study: 9- to 15-Year-Old Females | Extension Study: 9- to 15-Year-Old Males |
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9-valent human papillomavirus (9vHPV) L1 virus-like particle (VLP) vaccine, 0.5 mL intramuscular injection at Day 1, Month 2, and Month 6. Vaccine dose administered was obtained from manufacturing Lot 1. | 9vHPV L1 VLP vaccine, 0.5 mL intramuscular injection at Day 1, Month 2, and Month 6. Vaccine dose administered was obtained from manufacturing Lot 2. | 9vHPV L1 VLP vaccine, 0.5 mL intramuscular injection at Day 1, Month 2, and Month 6. Vaccine dose administered was obtained from manufacturing Lot 3. | 9vHPV L1 VLP vaccine, 0.5 mL intramuscular injection at Day 1, Month 2, and Month 6. Vaccine dose administered was obtained from manufacturing Lot 1. | 9vHPV L1 VLP vaccine, 0.5 mL intramuscular injection at Day 1, Month 2, and Month 6. Vaccine dose administered was obtained from manufacturing Lot 1. | In the base study, participants received the 9vHPV L1 VLP vaccine (0.5 mL intramuscular injection) at Day 1, Month 2, and Month 6 and were evaluated through Month 12. In the extension studies, the participants were followed up for safety and immunogenicity up to Month 36 (EXT1) and for immunogenicity, effectiveness, and safety up to Month 126 (EXT2). | In the base study, participants received the 9vHPV L1 VLP vaccine (0.5 mL intramuscular injection) at Day 1, Month 2, and Month 6 and were evaluated through Month 12. In the extension studies, the participants were followed up for safety and immunogenicity up to Month 36 (EXT1) and for immunogenicity, effectiveness, and safety up to Month 126 (EXT2) |
Period Title: Base Study | |||||||
Started | 648 | 643 | 644 | 669 | 470 | 0 | 0 |
Vaccination 1 | 646 | 642 | 644 | 666 | 468 | 0 | 0 |
Vaccination 2 | 637 | 633 | 638 | 658 | 462 | 0 | 0 |
Vaccination 3 | 635 | 627 | 637 | 653 | 455 | 0 | 0 |
At Least One Dose With Protocol-specified Safety Follow-up | 643 | 639 | 641 | 662 | 466 | 0 | 0 |
Completed | 623 | 621 | 631 | 647 | 444 | 0 | 0 |
Not Completed | 25 | 22 | 13 | 22 | 26 | 0 | 0 |
Reason Not Completed | |||||||
Adverse Event | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
Lost to Follow-up | 12 | 8 | 10 | 8 | 11 | 0 | 0 |
Physician Decision | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
Pregnancy | 0 | 0 | 1 | 0 | 2 | 0 | 0 |
Protocol Violation | 0 | 1 | 0 | 0 | 2 | 0 | 0 |
Withdrawal by Subject | 12 | 13 | 2 | 13 | 8 | 0 | 0 |
Month 12 visit not completed | 0 | 0 | 0 | 0 | 2 | 0 | 0 |
Period Title: First Extension Study: EXT 1 | |||||||
Started [1] | 0 | 0 | 0 | 0 | 0 | 1604 | 568 |
Completed | 0 | 0 | 0 | 0 | 0 | 1489 | 527 |
Not Completed | 0 | 0 | 0 | 0 | 0 | 115 | 41 |
Reason Not Completed | |||||||
Adverse Event | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
Lost to Follow-up | 0 | 0 | 0 | 0 | 0 | 38 | 10 |
Withdrawal by Subject | 0 | 0 | 0 | 0 | 0 | 32 | 10 |
Disposition Unknown | 0 | 0 | 0 | 0 | 0 | 44 | 21 |
[1]
The optional EXT1 included eligible participants from the base study, with the exception of 16-26 year old females.
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Period Title: Second Extension Study: EXT 2 | |||||||
Started [1] | 0 | 0 | 0 | 0 | 0 | 971 | 301 |
Completed | 0 | 0 | 0 | 0 | 0 | 720 | 202 |
Not Completed | 0 | 0 | 0 | 0 | 0 | 251 | 99 |
Reason Not Completed | |||||||
Adverse Event | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
Lost to Follow-up | 0 | 0 | 0 | 0 | 0 | 111 | 46 |
Physician Decision | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
Pregnancy | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
Withdrawal by Subject | 0 | 0 | 0 | 0 | 0 | 137 | 50 |
[1]
The optional EXT2 included eligible participants from the base study, with the exception of 16-26 year old females.
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Baseline Characteristics
Arm/Group Title | Base Study: 9- to 15-Year-Old Females (Lot 1) | Base Study: 9- to 15-Year-Old Females (Lot 2) | Base Study: 9- to 15-Year-Old Females (Lot 3) | Base Study: 9- to 15-Year-Old Males (Lot 1) | Base Study: 16- to 26-Year-Old Females (Lot 1) | Total | |
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9-valent human papillomavirus (9vHPV) L1 virus-like particle (VLP) vaccine, 0.5 mL intramuscular injection at Day 1, Month 2, and Month 6. Vaccine dose administered was obtained from manufacturing Lot 1. | 9vHPV L1 VLP vaccine, 0.5 mL intramuscular injection at Day 1, Month 2, and Month 6. Vaccine dose administered was obtained from manufacturing Lot 2. | 9vHPV L1 VLP vaccine, 0.5 mL intramuscular injection at Day 1, Month 2, and Month 6. Vaccine dose administered was obtained from manufacturing Lot 3. | 9vHPV L1 VLP vaccine, 0.5 mL intramuscular injection at Day 1, Month 2, and Month 6. Vaccine dose administered was obtained from manufacturing Lot 1. | 9vHPV L1 VLP vaccine, 0.5 mL intramuscular injection at Day 1, Month 2, and Month 6. Vaccine dose administered was obtained from manufacturing Lot 1. | Total of all reporting groups | |
Overall Number of Baseline Participants | 648 | 643 | 644 | 669 | 470 | 3074 | |
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Per protocol, baseline characteristics were analyzed in all participants randomized in the base study.
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Age, Customized
Measure Type: Number Unit of measure: Participants |
Number Analyzed | 648 participants | 643 participants | 644 participants | 669 participants | 470 participants | 3074 participants |
9 to 12 years | 440 | 432 | 432 | 450 | 0 | 1754 | |
13 to 15 years | 208 | 211 | 212 | 219 | 0 | 850 | |
16 to 26 years | 0 | 0 | 0 | 0 | 470 | 470 | |
Sex: Female, Male
Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 648 participants | 643 participants | 644 participants | 669 participants | 470 participants | 3074 participants | |
Female |
648 100.0%
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643 100.0%
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644 100.0%
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0 0.0%
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470 100.0%
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2405 78.2%
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Male |
0 0.0%
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0 0.0%
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0 0.0%
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669 100.0%
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0 0.0%
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669 21.8%
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Outcome Measures
Adverse Events