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Concomitant Use of Gardasil (V501, Human Papillomavirus [Types 6, 11, 16, 18] Recombinant Vaccine) With Combined Diptheria, Tetanus, Pertussis and Poliomyelitis Vaccine in Adolescents (V501-024)(COMPLETED)

An Open-Label, Randomized, Multicenter Study of the Safety, Tolerability, and Immunogenicity of Gardasil (V501) Given Concomitantly With REPEVAX™ in Healthy Adolescents 11-17 Years of Age

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00337428
Enrollment
843
Registered
2006-06-16
Start date
2006-05-31
Completion date
2007-05-31
Last updated
2016-11-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diphtheria, Neoplasms, Glandular and Epithelial, Poliomyelitis, Tetanus, Whooping Cough

Brief summary

Data from this study are expected to demonstrate that Gardasil (V501, Human Papillomavirus \[Types 6, 11, 16, 18\] Recombinant Vaccine), when administered concomitantly with a combined diphtheria, tetanus, pertussis, and poliomyelitis vaccine in adolescents remains immunogenic and well-tolerated and it does not impair the immunogenicity of the concomitant vaccines.

Interventions

BIOLOGICALComparator: Quadrivalent Human Papillomavirus (Types 6, 11, 16, 18) Recombinant (qHPV) Vaccine from Current Manufacturing Facility (CMF)

GARDASIL™ (quadrivalent human papillomavirus \[types 6, 11, 16, 18\] virus-like particle \[VLP\] vaccine, referred to as qHPV vaccine) made at the current manufacturing facility was administered as 0.5-mL intramuscular dose at Day 1, Month 2, and Month 6.

BIOLOGICALComparator: Quadrivalent Human Papillomavirus (Types 6, 11, 16, 18) Recombinant (qHPV) Vaccine from Future Manufacturing Facility (FMF)

GARDASIL™ (quadrivalent human papillomavirus \[types 6, 11, 16, 18\] virus-like particle \[VLP\] vaccine, referred to as qHPV vaccine) made at the future manufacturing facility was administered as 0.5-mL intramuscular dose at Day 1, Month 2, and Month 6.

BIOLOGICALComparator: REPEVAX™ (Concomitant)

REPEVAX™ (diphtheria, tetanus, pertussis \[acellular, component\] and poliomyelitis \[inactivated\] vaccine, Sanofi Pasteur, Swiftwater, PA U.S.A) was administered as a single 0.5-mL intramuscular dose at Day 1 in a limb opposite that of quadrivalent HPV injection.

BIOLOGICALComparator: REPEVAX™ (Non-Concomitant)

REPEVAX™ (diphtheria, tetanus, pertussis \[acellular, component\] and poliomyelitis \[inactivated\] vaccine, Sanofi Pasteur, Swiftwater, PA U.S.A) was administered as a single 0.5-mL intramuscular dose at Month 1 in a limb opposite that of quadrivalent HPV injection.

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
11 Years to 17 Years
Healthy volunteers
Yes

Inclusion criteria

* Must be healthy boys or girls, 11-17 years of age * Must be a virgin with no intention of becoming sexually active during the study period * Must have been properly vaccinated against diphtheria, tetanus, pertussis and polio

Exclusion criteria

* Must not have received a vaccine against diphtheria, tetanus, pertussis and polio in the past 5 years * Must not have received any prior human papillomavirus (HPV) vaccine

Design outcomes

Primary

MeasureTime frameDescription
Geometric Mean Titers (GMTs) for Anti-HPV 6 at Month 7 (4 Weeks Postdose 3)Up to 7 Months (4 Weeks Postdose 3)Serum antibodies to HPV Type 6 were measured with a Competitive Luminex Immunoassay. Titers were reported in milli Merck Units (mMU)/milliliter (mL). GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs for each HPV type using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.
Geometric Mean Titers (GMTs) for Anti-HPV 11 at Month 7 (4 Weeks Postdose 3)Up to 7 Months (4 Weeks Postdose 3)Serum antibodies to HPV Type 11 were measured with a Competitive Luminex Immunoassay. Titers were reported in milli Merck Units (mMU)/milliliter (mL). GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs for each HPV type using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.
Geometric Mean Titers (GMTs) for Anti-HPV 16 at Month 7 (4 Weeks Postdose 3)Up to 7 Months (4 Weeks Postdose 3)Serum antibodies to HPV Type 16 were measured with a Competitive Luminex Immunoassay. Titers were reported in milli Merck Units (mMU)/milliliter (mL). GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs for each HPV type using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.
Geometric Mean Titers (GMTs) for Anti-HPV 18 at Month 7 (4 Weeks Postdose 3)Up to 7 Months (4 Weeks Postdose 3)Serum antibodies to HPV Type 18 were measured with a Competitive Luminex Immunoassay. Titers were reported in milli Merck Units (mMU)/milliliter (mL). GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs for each HPV type using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.
Number of Participants Who Seroconverted for HPV Type 6 (HPV 6 ≥20 mMU/mL) by Month 7 (4 Weeks Postdose 3)Up to 7 Months (4 Weeks Postdose 3)Seroconversion to HPV Type 6 was defined as changing serostatus from seronegative to seropositive as measured by GMT. The cutoff value for HPV seropositivity was ≥20 mMU/mL. Seroconversion of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) was compared to seroconversion of participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared seroconversion for each HPV type using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.
Number of Participants Who Seroconverted for HPV Type 11 (HPV 11 ≥16 mMU/mL) by Month 7 (4 Weeks Postdose 3)Up to 7 Months (4 Weeks Postdose 3)Seroconversion to HPV Type 11 was defined as changing serostatus from seronegative to seropositive as measured by GMT. The cutoff value for HPV seropositivity was ≥16 mMU/mL. Seroconversion of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) was compared to seroconversion of participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared seroconversion for each HPV type using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.
Number of Participants Who Seroconverted for HPV Type 16 (HPV 16 ≥20 mMU/mL) by Month 7 (4 Weeks Postdose 3)Up to 7 Months (4 Weeks Postdose 3)Seroconversion to HPV Type 16 was defined as changing serostatus from seronegative to seropositive as measured by GMT. The cutoff value for HPV seropositivity was ≥20 mMU/mL. Seroconversion of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) was compared to seroconversion of participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared seroconversion for each HPV type using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.
Number of Participants Who Seroconverted for HPV Type 18 (HPV 18 ≥24 mMU/mL) by Month 7 (4 Weeks Postdose 3)Up to 7 Months (4 Weeks Postdose 3)Seroconversion to HPV Type 18 was defined as changing serostatus from seronegative to seropositive as measured by GMT. The cutoff value for HPV seropositivity was ≥24 mMU/mL. Seroconversion of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) was compared to seroconversion of participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared seroconversion for each HPV type using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.
Number of Participants Who Achieved Acceptable Levels of Titers to Diphtheria (Diphtheria ≥0.1 IU/mL) One Month Post-vaccination With REPEVAX™Up to 1 Month (1 Month Postdose 1)Diphtheria antitoxin titers were measured using a neutralization assay in Vero cell culture that compares the antitoxin level in the serum of participants with the World Health Organization International Standard for Diphtheria Antitoxin. An acceptable level of response was defined as ≥0.1 International Units (IU)/milliliter (mL). Response levels of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared response levels using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.
Number of Participants Who Achieved Acceptable Levels of Titers to Tetanus (Tetanus ≥0.1 IU/mL) One Month Post-vaccination With REPEVAX™Up to 1 Month (1 Month Postdose 1)Tetanus antitoxin titers were measured using an indirect, non-competitive enzyme immunoassay (EIA) that compares the antitoxin level in the serum of participants with the World Health Organization International Standard for Tetanus Immunoglobulin. An acceptable level of response was defined as ≥0.1 International Units (IU)/milliliter (mL). Response levels of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared response levels using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.
Number of Participants Who Achieved Acceptable Levels of Titers to Poliovirus Type 1 (Poliovirus Type 1 ≥1:8) One Month Postvaccination With REPEVAX™Up to 1 Month (1 Month Postdose 1)Poliovirus antibody was measured using a poliovirus neutralization assay that assesses the ability of serial dilutions of participant sera to neutralize known amounts of type-specific Sabin poliovirus strains (Types 1, 2, and 3). An acceptable level of response was defined as participants who achieve detectable serum neutralizing antibodies at a ≥1:8 dilution of sera. The response of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) was compared to participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared response levels using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.
Number of Participants Who Achieved Acceptable Levels of Titers to Poliovirus Type 2 (Poliovirus Type 2 ≥1:8) One Month Postvaccination With REPEVAX™Up to 1 Month (1 Month Postdose 1)Poliovirus antibody was measured using a poliovirus neutralization assay that assesses the ability of serial dilutions of participant sera to neutralize known amounts of type-specific Sabin poliovirus strains (Types 1, 2, and 3). An acceptable level of response was defined as participants who achieve detectable serum neutralizing antibodies at a ≥1:8 dilution of sera. The response of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) was compared to participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared response levels using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.
Number of Participants Who Achieved Acceptable Levels of Titers to Poliovirus Type 3 (Poliovirus Type 3 ≥1:8) One Month Postvaccination With REPEVAX™Up to 1 Month (1 Month Postdose 1)Poliovirus antibody was measured using a poliovirus neutralization assay that assesses the ability of serial dilutions of participant sera to neutralize known amounts of type-specific Sabin poliovirus strains (Types 1, 2, and 3). An acceptable level of response was defined as participants who achieve detectable serum neutralizing antibodies at a ≥1:8 dilution of sera. The response of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) was compared to participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared response levels using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.
Geometric Mean Titers (GMTs) For Pertussis (Anti-PT) One Month Postvaccination With REPEVAX™Up to 1 Month (1 Month Postdose 1)Serum antibodies to Pertussis Toxoid Antibody (anti-PT) were measured with an enzyme-linked immunosorbent assay (ELISA). Titers were reported in ELISA units/mL (ELU/mL) and the lower limit of quantitation for the assay was 5.0 ELU/mL. GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.
Geometric Mean Titers (GMTs) For Pertussis (Anti-FHA) One Month Postvaccination With REPEVAX™Up to 1 Month (1 Month Postdose 1)Serum antibodies to Pertussis Filamentous Haemagglutin Antibody (anti-FHA) were measured with an ELISA. Titers were reported in ELU/mL and the lower limit of quantitation for the assay was 3.0 ELU/mL. GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.
Geometric Mean Titers (GMTs) For Pertussis (Anti-PRN) One Month Postvaccination With REPEVAX™Up to 1 Month (1 Month Postdose 1)Serum antibodies to Pertussis Pertactin (anti-PRN) were measured with an ELISA. Titers were reported in ELU/mL and the lower limit of quantitation for the assay was 5.0 ELU/mL. GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.
Geometric Mean Titers (GMTs) For Pertussis (Anti-FIM) One Month Postvaccination With REPEVAX™Up to 1 Month (1 Month Postdose 1)Serum antibodies to Pertussis Fimbrial Agglutinogens Antibody (anti-FIM) were measured with an ELISA. Titers were reported in ELU/mL and the lower limit of quantitation for the assay was 5.0 ELU/mL. GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs for each HPV Type using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.

Participant flow

Pre-assignment details

The study enrolled healthy participants, 11-17 years old, with 0 lifetime sexual partners, vaccinated against diphtheria, tetanus, pertussis and polio but had not received the vaccine in the past 5 years or any prior human papillomavirus (HPV) vaccine. Additional inclusion and exclusion criteria applied.

Participants by arm

ArmCount
qHPV Vaccine + REPEVAX™ (Concomitant)
Quadrivalent Human Papillomavirus (Types 6, 11, 16, 18) Recombinant (qHPV) vaccine and REPEVAX™ administered on Day 1 at different injection sites.
419
qHPV Vaccine + REPEVAX™ (Non-Concomitant)
Quadrivalent Human Papillomavirus (Types 6, 11, 16, 18) Recombinant (qHPV) vaccine administered on Day 1 followed by REPEVAX™ administered at Month 1.
424
Total843

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAnorexia10
Overall StudyLack of Time11
Overall StudyUnwilling to Continue10
Overall StudyWithdrawal by Subject12

Baseline characteristics

CharacteristicqHPV Vaccine + REPEVAX™ (Concomitant)qHPV Vaccine + REPEVAX™ (Non-Concomitant)Total
Age, Continuous12.1 years
STANDARD_DEVIATION 1.5
12.1 years
STANDARD_DEVIATION 1.5
12.1 years
STANDARD_DEVIATION 1.5
Race/Ethnicity, Customized
Asian
1 participants3 participants4 participants
Race/Ethnicity, Customized
Black
3 participants3 participants6 participants
Race/Ethnicity, Customized
Multi-racial
2 participants3 participants5 participants
Race/Ethnicity, Customized
White
413 participants415 participants828 participants
Sex: Female, Male
Female
295 Participants288 Participants583 Participants
Sex: Female, Male
Male
124 Participants136 Participants260 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
405 / 420406 / 423
serious
Total, serious adverse events
1 / 4203 / 423

Outcome results

Primary

Geometric Mean Titers (GMTs) for Anti-HPV 11 at Month 7 (4 Weeks Postdose 3)

Serum antibodies to HPV Type 11 were measured with a Competitive Luminex Immunoassay. Titers were reported in milli Merck Units (mMU)/milliliter (mL). GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs for each HPV type using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.

Time frame: Up to 7 Months (4 Weeks Postdose 3)

Population: Per-protocol population: participants must have no major protocol violations, must be seronegative at baseline to the relevant HPV type, and must have post-vaccination data.

ArmMeasureValue (MEAN)
qHPV Vaccine + REPEVAX™ (Concomitant)Geometric Mean Titers (GMTs) for Anti-HPV 11 at Month 7 (4 Weeks Postdose 3)1338.3 milliMerck units/mL
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Geometric Mean Titers (GMTs) for Anti-HPV 11 at Month 7 (4 Weeks Postdose 3)1460.7 milliMerck units/mL
p-value: <0.001ANOVA
Primary

Geometric Mean Titers (GMTs) for Anti-HPV 16 at Month 7 (4 Weeks Postdose 3)

Serum antibodies to HPV Type 16 were measured with a Competitive Luminex Immunoassay. Titers were reported in milli Merck Units (mMU)/milliliter (mL). GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs for each HPV type using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.

Time frame: Up to 7 Months (4 Weeks Postdose 3)

Population: Per-protocol population: participants must have no major protocol violations, must be seronegative at baseline to the relevant HPV type, and must have post-vaccination data.

ArmMeasureValue (MEAN)
qHPV Vaccine + REPEVAX™ (Concomitant)Geometric Mean Titers (GMTs) for Anti-HPV 16 at Month 7 (4 Weeks Postdose 3)5835.7 milliMerck units/mL
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Geometric Mean Titers (GMTs) for Anti-HPV 16 at Month 7 (4 Weeks Postdose 3)6508.1 milliMerck units/mL
p-value: <0.001ANOVA
Primary

Geometric Mean Titers (GMTs) for Anti-HPV 18 at Month 7 (4 Weeks Postdose 3)

Serum antibodies to HPV Type 18 were measured with a Competitive Luminex Immunoassay. Titers were reported in milli Merck Units (mMU)/milliliter (mL). GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs for each HPV type using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.

Time frame: Up to 7 Months (4 Weeks Postdose 3)

Population: Per-protocol population: participants must have no major protocol violations, must be seronegative at baseline to the relevant HPV type, and must have post-vaccination data.

ArmMeasureValue (MEAN)
qHPV Vaccine + REPEVAX™ (Concomitant)Geometric Mean Titers (GMTs) for Anti-HPV 18 at Month 7 (4 Weeks Postdose 3)1096.0 milliMerck units/mL
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Geometric Mean Titers (GMTs) for Anti-HPV 18 at Month 7 (4 Weeks Postdose 3)1308.8 milliMerck units/mL
p-value: <0.001ANOVA
Primary

Geometric Mean Titers (GMTs) for Anti-HPV 6 at Month 7 (4 Weeks Postdose 3)

Serum antibodies to HPV Type 6 were measured with a Competitive Luminex Immunoassay. Titers were reported in milli Merck Units (mMU)/milliliter (mL). GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs for each HPV type using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.

Time frame: Up to 7 Months (4 Weeks Postdose 3)

Population: Per-protocol population: participants must have no major protocol violations, must be seronegative at baseline to the relevant HPV type, and must have post-vaccination data.

ArmMeasureValue (MEAN)
qHPV Vaccine + REPEVAX™ (Concomitant)Geometric Mean Titers (GMTs) for Anti-HPV 6 at Month 7 (4 Weeks Postdose 3)1151.3 milliMerck units/mL
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Geometric Mean Titers (GMTs) for Anti-HPV 6 at Month 7 (4 Weeks Postdose 3)1244.9 milliMerck units/mL
p-value: <0.001ANOVA
Primary

Geometric Mean Titers (GMTs) For Pertussis (Anti-FHA) One Month Postvaccination With REPEVAX™

Serum antibodies to Pertussis Filamentous Haemagglutin Antibody (anti-FHA) were measured with an ELISA. Titers were reported in ELU/mL and the lower limit of quantitation for the assay was 3.0 ELU/mL. GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.

Time frame: Up to 1 Month (1 Month Postdose 1)

Population: Per-protocol population: participants must have no major protocol violations and must have post-vaccination data.

ArmMeasureValue (MEAN)
qHPV Vaccine + REPEVAX™ (Concomitant)Geometric Mean Titers (GMTs) For Pertussis (Anti-FHA) One Month Postvaccination With REPEVAX™140.3 ELISA units/mL
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Geometric Mean Titers (GMTs) For Pertussis (Anti-FHA) One Month Postvaccination With REPEVAX™140.7 ELISA units/mL
p-value: <0.001ANOVA
Primary

Geometric Mean Titers (GMTs) For Pertussis (Anti-FIM) One Month Postvaccination With REPEVAX™

Serum antibodies to Pertussis Fimbrial Agglutinogens Antibody (anti-FIM) were measured with an ELISA. Titers were reported in ELU/mL and the lower limit of quantitation for the assay was 5.0 ELU/mL. GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs for each HPV Type using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.

Time frame: Up to 1 Month (1 Month Postdose 1)

Population: Per-protocol population: participants must have no major protocol violations and must have post-vaccination data.

ArmMeasureValue (MEAN)
qHPV Vaccine + REPEVAX™ (Concomitant)Geometric Mean Titers (GMTs) For Pertussis (Anti-FIM) One Month Postvaccination With REPEVAX™561.2 ELISA units/mL
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Geometric Mean Titers (GMTs) For Pertussis (Anti-FIM) One Month Postvaccination With REPEVAX™506.4 ELISA units/mL
p-value: <0.001ANOVA
Primary

Geometric Mean Titers (GMTs) For Pertussis (Anti-PRN) One Month Postvaccination With REPEVAX™

Serum antibodies to Pertussis Pertactin (anti-PRN) were measured with an ELISA. Titers were reported in ELU/mL and the lower limit of quantitation for the assay was 5.0 ELU/mL. GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.

Time frame: Up to 1 Month (1 Month Postdose 1)

Population: Per-protocol population: participants must have no major protocol violations and must have post-vaccination data.

ArmMeasureValue (MEAN)
qHPV Vaccine + REPEVAX™ (Concomitant)Geometric Mean Titers (GMTs) For Pertussis (Anti-PRN) One Month Postvaccination With REPEVAX™504.1 ELISA units/mL
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Geometric Mean Titers (GMTs) For Pertussis (Anti-PRN) One Month Postvaccination With REPEVAX™552.8 ELISA units/mL
p-value: <0.001ANOVA
Primary

Geometric Mean Titers (GMTs) For Pertussis (Anti-PT) One Month Postvaccination With REPEVAX™

Serum antibodies to Pertussis Toxoid Antibody (anti-PT) were measured with an enzyme-linked immunosorbent assay (ELISA). Titers were reported in ELISA units/mL (ELU/mL) and the lower limit of quantitation for the assay was 5.0 ELU/mL. GMTs from participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to GMTs from participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared GMTs using an ANOVA model with a response of log individual titers and fixed effects for treatment group, manufacturing facility, study site, and the treatment-by-site interaction.

Time frame: Up to 1 Month (1 Month Postdose 1)

Population: Per-protocol population: participants must have no major protocol violations and must have post-vaccination data.

ArmMeasureValue (MEAN)
qHPV Vaccine + REPEVAX™ (Concomitant)Geometric Mean Titers (GMTs) For Pertussis (Anti-PT) One Month Postvaccination With REPEVAX™38.1 ELISA units/mL
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Geometric Mean Titers (GMTs) For Pertussis (Anti-PT) One Month Postvaccination With REPEVAX™35.7 ELISA units/mL
p-value: <0.001ANOVA
Primary

Number of Participants Who Achieved Acceptable Levels of Titers to Diphtheria (Diphtheria ≥0.1 IU/mL) One Month Post-vaccination With REPEVAX™

Diphtheria antitoxin titers were measured using a neutralization assay in Vero cell culture that compares the antitoxin level in the serum of participants with the World Health Organization International Standard for Diphtheria Antitoxin. An acceptable level of response was defined as ≥0.1 International Units (IU)/milliliter (mL). Response levels of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared response levels using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.

Time frame: Up to 1 Month (1 Month Postdose 1)

Population: Per-protocol population: participants must have no major protocol violations and must have post-vaccination data.

ArmMeasureValue (NUMBER)
qHPV Vaccine + REPEVAX™ (Concomitant)Number of Participants Who Achieved Acceptable Levels of Titers to Diphtheria (Diphtheria ≥0.1 IU/mL) One Month Post-vaccination With REPEVAX™380 participants
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Number of Participants Who Achieved Acceptable Levels of Titers to Diphtheria (Diphtheria ≥0.1 IU/mL) One Month Post-vaccination With REPEVAX™379 participants
p-value: <0.001Miettinen and Nurminen
Primary

Number of Participants Who Achieved Acceptable Levels of Titers to Poliovirus Type 1 (Poliovirus Type 1 ≥1:8) One Month Postvaccination With REPEVAX™

Poliovirus antibody was measured using a poliovirus neutralization assay that assesses the ability of serial dilutions of participant sera to neutralize known amounts of type-specific Sabin poliovirus strains (Types 1, 2, and 3). An acceptable level of response was defined as participants who achieve detectable serum neutralizing antibodies at a ≥1:8 dilution of sera. The response of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) was compared to participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared response levels using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.

Time frame: Up to 1 Month (1 Month Postdose 1)

Population: Per-protocol population: participants must have no major protocol violations and must have post-vaccination data.

ArmMeasureValue (NUMBER)
qHPV Vaccine + REPEVAX™ (Concomitant)Number of Participants Who Achieved Acceptable Levels of Titers to Poliovirus Type 1 (Poliovirus Type 1 ≥1:8) One Month Postvaccination With REPEVAX™367 participants
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Number of Participants Who Achieved Acceptable Levels of Titers to Poliovirus Type 1 (Poliovirus Type 1 ≥1:8) One Month Postvaccination With REPEVAX™376 participants
p-value: <0.001Miettinen and Nurminen
Primary

Number of Participants Who Achieved Acceptable Levels of Titers to Poliovirus Type 2 (Poliovirus Type 2 ≥1:8) One Month Postvaccination With REPEVAX™

Poliovirus antibody was measured using a poliovirus neutralization assay that assesses the ability of serial dilutions of participant sera to neutralize known amounts of type-specific Sabin poliovirus strains (Types 1, 2, and 3). An acceptable level of response was defined as participants who achieve detectable serum neutralizing antibodies at a ≥1:8 dilution of sera. The response of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) was compared to participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared response levels using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.

Time frame: Up to 1 Month (1 Month Postdose 1)

Population: Per-protocol population: participants must have no major protocol violations and must have post-vaccination data.

ArmMeasureValue (NUMBER)
qHPV Vaccine + REPEVAX™ (Concomitant)Number of Participants Who Achieved Acceptable Levels of Titers to Poliovirus Type 2 (Poliovirus Type 2 ≥1:8) One Month Postvaccination With REPEVAX™369 participants
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Number of Participants Who Achieved Acceptable Levels of Titers to Poliovirus Type 2 (Poliovirus Type 2 ≥1:8) One Month Postvaccination With REPEVAX™376 participants
p-value: <0.001Miettinen and Nurminen
Primary

Number of Participants Who Achieved Acceptable Levels of Titers to Poliovirus Type 3 (Poliovirus Type 3 ≥1:8) One Month Postvaccination With REPEVAX™

Poliovirus antibody was measured using a poliovirus neutralization assay that assesses the ability of serial dilutions of participant sera to neutralize known amounts of type-specific Sabin poliovirus strains (Types 1, 2, and 3). An acceptable level of response was defined as participants who achieve detectable serum neutralizing antibodies at a ≥1:8 dilution of sera. The response of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) was compared to participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared response levels using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.

Time frame: Up to 1 Month (1 Month Postdose 1)

Population: Per-protocol population: participants must have no major protocol violations and must have post-vaccination data.

ArmMeasureValue (NUMBER)
qHPV Vaccine + REPEVAX™ (Concomitant)Number of Participants Who Achieved Acceptable Levels of Titers to Poliovirus Type 3 (Poliovirus Type 3 ≥1:8) One Month Postvaccination With REPEVAX™360 participants
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Number of Participants Who Achieved Acceptable Levels of Titers to Poliovirus Type 3 (Poliovirus Type 3 ≥1:8) One Month Postvaccination With REPEVAX™375 participants
p-value: <0.001Miettinen and Nurminen
Primary

Number of Participants Who Achieved Acceptable Levels of Titers to Tetanus (Tetanus ≥0.1 IU/mL) One Month Post-vaccination With REPEVAX™

Tetanus antitoxin titers were measured using an indirect, non-competitive enzyme immunoassay (EIA) that compares the antitoxin level in the serum of participants with the World Health Organization International Standard for Tetanus Immunoglobulin. An acceptable level of response was defined as ≥0.1 International Units (IU)/milliliter (mL). Response levels of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) were compared to participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared response levels using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.

Time frame: Up to 1 Month (1 Month Postdose 1)

Population: Per-protocol population: participants must have no major protocol violations and must have post-vaccination data.

ArmMeasureValue (NUMBER)
qHPV Vaccine + REPEVAX™ (Concomitant)Number of Participants Who Achieved Acceptable Levels of Titers to Tetanus (Tetanus ≥0.1 IU/mL) One Month Post-vaccination With REPEVAX™381 participants
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Number of Participants Who Achieved Acceptable Levels of Titers to Tetanus (Tetanus ≥0.1 IU/mL) One Month Post-vaccination With REPEVAX™380 participants
p-value: <0.001Miettinen and Nurminen
Primary

Number of Participants Who Seroconverted for HPV Type 11 (HPV 11 ≥16 mMU/mL) by Month 7 (4 Weeks Postdose 3)

Seroconversion to HPV Type 11 was defined as changing serostatus from seronegative to seropositive as measured by GMT. The cutoff value for HPV seropositivity was ≥16 mMU/mL. Seroconversion of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) was compared to seroconversion of participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared seroconversion for each HPV type using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.

Time frame: Up to 7 Months (4 Weeks Postdose 3)

Population: Per-protocol population: participants must have no major protocol violations, must be seronegative at baseline to the relevant HPV type, and must have post-vaccination data.

ArmMeasureValue (NUMBER)
qHPV Vaccine + REPEVAX™ (Concomitant)Number of Participants Who Seroconverted for HPV Type 11 (HPV 11 ≥16 mMU/mL) by Month 7 (4 Weeks Postdose 3)367 participants
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Number of Participants Who Seroconverted for HPV Type 11 (HPV 11 ≥16 mMU/mL) by Month 7 (4 Weeks Postdose 3)376 participants
p-value: <0.001Miettinen and Nurminen
Primary

Number of Participants Who Seroconverted for HPV Type 16 (HPV 16 ≥20 mMU/mL) by Month 7 (4 Weeks Postdose 3)

Seroconversion to HPV Type 16 was defined as changing serostatus from seronegative to seropositive as measured by GMT. The cutoff value for HPV seropositivity was ≥20 mMU/mL. Seroconversion of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) was compared to seroconversion of participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared seroconversion for each HPV type using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.

Time frame: Up to 7 Months (4 Weeks Postdose 3)

Population: Per-protocol population: participants must have no major protocol violations, must be seronegative at baseline to the relevant HPV type, and must have post-vaccination data.

ArmMeasureValue (NUMBER)
qHPV Vaccine + REPEVAX™ (Concomitant)Number of Participants Who Seroconverted for HPV Type 16 (HPV 16 ≥20 mMU/mL) by Month 7 (4 Weeks Postdose 3)370 participants
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Number of Participants Who Seroconverted for HPV Type 16 (HPV 16 ≥20 mMU/mL) by Month 7 (4 Weeks Postdose 3)378 participants
p-value: <0.001Miettinen and Nurminen
Primary

Number of Participants Who Seroconverted for HPV Type 18 (HPV 18 ≥24 mMU/mL) by Month 7 (4 Weeks Postdose 3)

Seroconversion to HPV Type 18 was defined as changing serostatus from seronegative to seropositive as measured by GMT. The cutoff value for HPV seropositivity was ≥24 mMU/mL. Seroconversion of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) was compared to seroconversion of participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared seroconversion for each HPV type using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.

Time frame: Up to 7 Months (4 Weeks Postdose 3)

Population: Per-protocol population: participants must have no major protocol violations, must be seronegative at baseline to the relevant HPV type, and must have post-vaccination data.

ArmMeasureValue (NUMBER)
qHPV Vaccine + REPEVAX™ (Concomitant)Number of Participants Who Seroconverted for HPV Type 18 (HPV 18 ≥24 mMU/mL) by Month 7 (4 Weeks Postdose 3)372 participants
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Number of Participants Who Seroconverted for HPV Type 18 (HPV 18 ≥24 mMU/mL) by Month 7 (4 Weeks Postdose 3)378 participants
p-value: <0.001Miettinen and Nurminen
Primary

Number of Participants Who Seroconverted for HPV Type 6 (HPV 6 ≥20 mMU/mL) by Month 7 (4 Weeks Postdose 3)

Seroconversion to HPV Type 6 was defined as changing serostatus from seronegative to seropositive as measured by GMT. The cutoff value for HPV seropositivity was ≥20 mMU/mL. Seroconversion of participants who received qHPV vaccine and REPEVAX™ together at Day 1 (concomitant) was compared to seroconversion of participants who received qHPV vaccine at Day 1 followed by REPEVAX™ 1 month later (non-concomitant). An analysis of non-inferiority compared seroconversion for each HPV type using methods developed by Miettinen and Nurminen adjusting for manufacturing facility for qHPV vaccine.

Time frame: Up to 7 Months (4 Weeks Postdose 3)

Population: Per-protocol population: participants must have no major protocol violations, must be seronegative at baseline to the relevant HPV type, and must have post-vaccination data.

ArmMeasureValue (NUMBER)
qHPV Vaccine + REPEVAX™ (Concomitant)Number of Participants Who Seroconverted for HPV Type 6 (HPV 6 ≥20 mMU/mL) by Month 7 (4 Weeks Postdose 3)367 participants
qHPV Vaccine + REPEVAX™ (Non-Concomitant)Number of Participants Who Seroconverted for HPV Type 6 (HPV 6 ≥20 mMU/mL) by Month 7 (4 Weeks Postdose 3)375 participants
p-value: <0.001Miettinen and Nurminen

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026