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Broad Spectrum HPV Vaccine Dose Escalation Study (V502-002)

A Randomized, Double-Blind, Multicenter, Biphasic, Controlled With GARDASIL™ Dose-Escalation Study of Octavalent Human Papillomavirus (HPV) L1 Virus-Like Particle (VLP) Vaccine Adjuvanted With Amorphous Aluminum Hydroxyphosphate Sulfate (AAHS) and ISCOMATRIX™ (IMX)

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00851643
Enrollment
158
Registered
2009-02-26
Start date
2006-04-30
Completion date
2009-11-30
Last updated
2016-02-03

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

Conditions

Cervical Cancer, Genital Warts, Human Papilloma Virus, Vaginal Cancer, Vulvar Cancer

Brief summary

This study will examine the safety and tolerability of octavalent Human Papillomavirus (HPV) L1 Virus-Like Particle (VLP) vaccine formulated with amorphous aluminum hydroxysulfate (AAHS) and ISCOMATRIX™ (IMX). Reviews of safety and tolerability will be used to select the dose(s) of IMX for further studies of the octavalent HPV L1 VLP vaccine.

Detailed description

The study was performed in 2 staggered phases, Phase A and Phase B. In Phase A, participants were randomized to qHPV, Octavalent HPV with 15 mcg IMX/AAHS, or Octavalent HPV with 30 mcg IMX/AAHS. After the safety for Phase A was reviewed, Phase B was initiated. In Phase B, participants were randomized to qHPV, Octavalent HPV with 60 mcg IMX/AAHS or Octavalent HPV with 120 mcg IMX/AAHS.

Interventions

BIOLOGICALOctavalent HPV with 15 mcg IMX / AAHS

0.5-mL intramuscular injection administered at Day 1, Month 2 and Month 6

BIOLOGICALOctavalent HPV with 30 mcg IMX / AAHS

0.5-mL intramuscular injection administered at Day 1, Month 2 and Month 6

BIOLOGICALOctavalent HPV with 60 mcg IMX / AAHS

0.5-mL intramuscular injection administered at Day 1, Month 2 and Month 6

BIOLOGICALOctavalent HPV with 120 mcg IMX / AAHS

0.5-mL intramuscular injection administered at Day 1, Month 2 and Month 6

BIOLOGICALComparator: Quadrivalent HPV Vaccine (qHPV), (GARDASIL™)

0.5-mL intramuscular injection administered at Day 1, Month 2 and Month 6

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 24 Years
Healthy volunteers
Yes

Inclusion criteria

* Participant is in good physical health * Participant has had a lifetime history of 0 to 4 sexual partners * Females between 18-to-24 years

Exclusion criteria

* Participant has a history of abnormal Pap test * Participant has a history of positive test for HPV * Participant has a history of recent or ongoing alcohol or drug abuse * Participant is immunocompromised or has an autoimmune condition * Participant has received immunosuppressive therapy within a year of screening * Participant has previously received an HPV vaccine * Participant is pregnant * Participant has a history of external genital/vaginal warts * Participant is currently enrolled in a clinical trial * Participant has a history of a severe allergic reaction that required medical attention

Design outcomes

Primary

MeasureTime frameDescription
Geometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase A4 weeks postdose 3 (Phase A)The quadrivalent HPV (GARDASIL™) vaccine has types 6, 11, 16, 18, and the octavalent HPV has types 6, 11, 16, 18, 31, 45, 52, and 58. Serum antibody titres to the HPV type were obtained using a competitive Luminex immunoassay (cLIA) after vaccination with GARDASIL™ or the octavalent HPV vaccine. GMTs were calculated and are reported as the antibody concentration in milli-Merck Units per milliliter (mMU/mL) of neutralizing monoclonal antibody equivalent.
Geometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase B4 weeks postdose 3 (Phase B)The quadrivalent HPV (GARDASIL™) vaccine has types 6, 11, 16, 18, and the octavalent HPV has types 6, 11, 16, 18, 31, 45, 52, and 58. Serum antibody titres to the HPV type were obtained using cLIA after vaccination with GARDASIL™ or the octavalent HPV vaccine. GMTs were calculated and are reported as the antibody concentration in milli-Merck Units per milliliter (mMU/mL) of neutralizing monoclonal antibody equivalent.
Number of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase A4 weeks postdose 3 (Phase A)A vaccinated participant was considered seropositive for a given HPV type if her serum antibody titer by cLIA for the HPV type was greater than the serostatus cutoff. The serostatus cutoffs for HPV Types 6, 11, 16, 18, 31, 45, 52, and 58 were 20, 20, 20, 20, 16, 16, 20, and 16 mMU/mL, respectively.
Number of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase B4 weeks postdose 3 (Phase B)A vaccinated participant was considered seropositive for a given HPV type if her serum antibody titer by cLIA for the HPV type was greater than the serostatus cutoff. The serostatus cutoffs for HPV Types 6, 11, 16, 18, 31, 45, 52, and 58 were 20, 20, 20, 20, 16, 16, 20, and 16 mMU/mL, respectively.

Participant flow

Recruitment details

158 participants were enrolled. Of the enrolled 158 participants, 8 were screening failures. 150 participants were randomized to the base study (up to 12 months), conducted in 2 phases, Phase A and Phase B. Some participants continued in a voluntary, long-term extension of the study (up to 36 months).

Pre-assignment details

In Phase A, participants were randomized to quadrivalent Human Papillomavirus (qHPV), Octavalent HPV with 15 mcg ISCOMATRIX™ (IMX) / Aluminum Hydroxyphosphate Sulfate (AAHS), or Octavalent HPV with 30 mcg IMX/AAHS. In Phase B, participants were randomized to qHPV, Octavalent HPV with 60 mcg IMX/AAHS or Octavalent HPV with 120 mcg IMX/AAHS.

Participants by arm

ArmCount
qHPV (GARDASIL™) - Phase A Control
Quadrivalent Human Papillomavirus (Types 6, 11, 16, 18) Recombinant Vaccine (GARDASIL™)- Controls from Phase A. A 0.5-mL intramuscular injection was administered at Day 1, Month 2 and Month 6.
15
Octavalent HPV With 15 mcg IMX / AAHS
Octavalent Human Papillomavirus (HPV) (Types 6, 11, 16, 18, 31, 45, 52, and 58) L1 Virus-Like Particle (VLP) Vaccine Adjuvanted With 281 mcg Amorphous Aluminum Hydroxyphosphate Sulfate(AAHS) and 15 mcg ISCOMATRIX™ (IMX). A 0.5-mL intramuscular injection was administered at Day 1, Month 2 and Month 6.
30
Octavalent HPV With 30 mcg IMX / AAHS
Octavalent Human Papillomavirus (HPV) (Types 6, 11, 16, 18, 31, 45, 52, and 58) L1 VLP Vaccine Adjuvanted With 281 mcg AAHS and 30 mcg IMX. A 0.5-mL intramuscular injection was administered at Day 1, Month 2 and Month 6.
30
qHPV (GARDASIL™) - Phase B Control
Quadrivalent Human Papillomavirus (Types 6, 11, 16, 18) Recombinant Vaccine (GARDASIL™)- Controls from Phase B. A 0.5-mL intramuscular injection was administered at Day 1, Month 2 and Month 6.
15
Octavalent HPV With 60 mcg IMX / AAHS
Octavalent Human Papillomavirus (HPV) (Types 6, 11, 16, 18, 31, 45, 52, and 58) L1 VLP Vaccine Adjuvanted With 281 mcg AAHS and 60 mcg IMX. A 0.5-mL intramuscular injection was administered at Day 1, Month 2 and Month 6.
30
Octavalent HPV With 120 mcg IMX / AAHS
Octavalent Human Papillomavirus (HPV) (Types 6, 11, 16, 18, 31, 45, 52, and 58) L1 VLP Vaccine Adjuvanted With 281 mcg AAHS and 120 mcg IMX. A 0.5-mL intramuscular injection was administered at Day 1, Month 2 and Month 6.
30
Total150

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Base Study (Up to 12 Months)Other000001
Base Study (Up to 12 Months)Withdrawal by Subject100000
Extension Study (Up to 36 Months)Lost to Follow-up424120
Extension Study (Up to 36 Months)Moved021101

Baseline characteristics

CharacteristicqHPV (GARDASIL™) - Phase A ControlOctavalent HPV With 15 mcg IMX / AAHSOctavalent HPV With 30 mcg IMX / AAHSqHPV (GARDASIL™) - Phase B ControlOctavalent HPV With 60 mcg IMX / AAHSOctavalent HPV With 120 mcg IMX / AAHSTotal
Age, Continuous20.3 years
STANDARD_DEVIATION 1.6
20.8 years
STANDARD_DEVIATION 1.8
20.2 years
STANDARD_DEVIATION 1.5
19.9 years
STANDARD_DEVIATION 1.6
20.5 years
STANDARD_DEVIATION 1.8
20.8 years
STANDARD_DEVIATION 2
20.5 years
STANDARD_DEVIATION 1.7
Region of Enrollment
Australia
15 participants30 participants30 participants15 participants30 participants30 participants150 participants
Sex: Female, Male
Female
15 Participants30 Participants30 Participants15 Participants30 Participants30 Participants150 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —
other
Total, other adverse events
30 / 3030 / 3030 / 3030 / 3030 / 30
serious
Total, serious adverse events
0 / 300 / 300 / 300 / 300 / 30

Outcome results

Primary

Geometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase A

The quadrivalent HPV (GARDASIL™) vaccine has types 6, 11, 16, 18, and the octavalent HPV has types 6, 11, 16, 18, 31, 45, 52, and 58. Serum antibody titres to the HPV type were obtained using a competitive Luminex immunoassay (cLIA) after vaccination with GARDASIL™ or the octavalent HPV vaccine. GMTs were calculated and are reported as the antibody concentration in milli-Merck Units per milliliter (mMU/mL) of neutralizing monoclonal antibody equivalent.

Time frame: 4 weeks postdose 3 (Phase A)

Population: Per Protocol Immunogenicity (PPI) population: participants who were not protocol violators, received all 3 vaccinations within acceptable day ranges, were seronegative at Day 1 and polymerase chain reaction (PCR)-negative Day 1 through Month 7 for the relevant HPV type(s), had a valid Month 7 serology result collected in the appropriate day range.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 6 (N=11, N=21, N=22)1273.3 mMU/mL
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 11 (N=11, N=21, N=22)1991.6 mMU/mL
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 16 (N=11, N=23, N=24)2381.9 mMU/mL
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 18 (N=11, N=24, N=24)568.7 mMU/mL
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 31(N=11, N=24, N=23)24.3 mMU/mL
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 45 (N=11, N=26, N=25)10.8 mMU/mL
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 52 (N=9, N=23, N=25)NA mMU/mL
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 58 (N=10, N=24, N=22)17.7 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 16 (N=11, N=23, N=24)3961.8 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 52 (N=9, N=23, N=25)2531.1 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 18 (N=11, N=24, N=24)1375.7 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 31(N=11, N=24, N=23)2037.5 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 45 (N=11, N=26, N=25)1042.8 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 6 (N=11, N=21, N=22)2203.0 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 11 (N=11, N=21, N=22)2564.3 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 58 (N=10, N=24, N=22)1759.2 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 16 (N=11, N=23, N=24)7484.4 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 11 (N=11, N=21, N=22)3921.6 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 6 (N=11, N=21, N=22)4784.7 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 18 (N=11, N=24, N=24)2315.3 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 52 (N=9, N=23, N=25)4292.0 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 45 (N=11, N=26, N=25)2116.5 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 31(N=11, N=24, N=23)4782.3 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase AAnti-HPV 58 (N=10, N=24, N=22)3146.4 mMU/mL
Primary

Geometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase B

The quadrivalent HPV (GARDASIL™) vaccine has types 6, 11, 16, 18, and the octavalent HPV has types 6, 11, 16, 18, 31, 45, 52, and 58. Serum antibody titres to the HPV type were obtained using cLIA after vaccination with GARDASIL™ or the octavalent HPV vaccine. GMTs were calculated and are reported as the antibody concentration in milli-Merck Units per milliliter (mMU/mL) of neutralizing monoclonal antibody equivalent.

Time frame: 4 weeks postdose 3 (Phase B)

Population: PPI population: All participants who were not protocol violators, received all 3 vaccinations within acceptable day ranges, were seronegative at Day 1 and PCR-negative Day 1 through Month 7~for the relevant HPV type(s), and had a valid Month 7 serology result collected in the appropriate day range.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 6 (N=10, N=19, N=23)2350.9 mMU/mL
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 11 (N=10, N=19, N=23)3762.2 mMU/mL
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 16 (N=7, N=19, N=20)2783.6 mMU/mL
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 18 (N=10, N=19, N=25)948.2 mMU/mL
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 31 (N=11, N=22, N=24)36.9 mMU/mL
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 45 (N=11, N=20, N=24)4.7 mMU/mL
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 52 (N=10, N=20, N=23)NA mMU/mL
qHPV (GARDASIL™) - Phase A ControlGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 58 (N=9, N=21, N=24)9.6 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 16 (N=7, N=19, N=20)12947.5 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 52 (N=10, N=20, N=23)5714.9 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 18 (N=10, N=19, N=25)5090.0 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 31 (N=11, N=22, N=24)7779.0 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 45 (N=11, N=20, N=24)3974.8 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 6 (N=10, N=19, N=23)6006.0 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 11 (N=10, N=19, N=23)6514.2 mMU/mL
Octavalent HPV With 15 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 58 (N=9, N=21, N=24)4961.8 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 16 (N=7, N=19, N=20)10105.9 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 11 (N=10, N=19, N=23)6609.3 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 6 (N=10, N=19, N=23)4484.8 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 18 (N=10, N=19, N=25)4070.9 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 52 (N=10, N=20, N=23)6624.6 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 45 (N=11, N=20, N=24)4696.4 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 31 (N=11, N=22, N=24)5487.3 mMU/mL
Octavalent HPV With 30 mcg IMX / AAHSGeometric Mean Titers (GMTs) to Each of the HPV Types Contained in the Vaccine for Phase BAnti-HPV Type 58 (N=9, N=21, N=24)5191.2 mMU/mL
Primary

Number of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase A

A vaccinated participant was considered seropositive for a given HPV type if her serum antibody titer by cLIA for the HPV type was greater than the serostatus cutoff. The serostatus cutoffs for HPV Types 6, 11, 16, 18, 31, 45, 52, and 58 were 20, 20, 20, 20, 16, 16, 20, and 16 mMU/mL, respectively.

Time frame: 4 weeks postdose 3 (Phase A)

Population: PPI population: All participants who were not protocol violators, received all 3 vaccinations within acceptable day ranges, were seronegative at Day 1 and PCR-negative Day 1 through Month 7~for the relevant HPV type(s), and had a valid Month 7 serology result collected in the appropriate day range.

ArmMeasureGroupValue (NUMBER)
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 6 (N=11, N=21, N=22)11 Participants
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 11 (N=11, N=21, N=22)11 Participants
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 16 (N=11, N=23, N=24)11 Participants
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 18 (N=11, N=24, N=24)11 Participants
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 31 (N=11, N=24, N=23)6 Participants
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 45 (N=11, N=26, N=25)4 Participants
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 52 (N=9, N=23, N=25)0 Participants
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 58 (N=10, N=24, N=22)3 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 16 (N=11, N=23, N=24)23 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 52 (N=9, N=23, N=25)23 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 18 (N=11, N=24, N=24)24 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 31 (N=11, N=24, N=23)24 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 45 (N=11, N=26, N=25)26 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 6 (N=11, N=21, N=22)21 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 11 (N=11, N=21, N=22)21 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 58 (N=10, N=24, N=22)24 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 16 (N=11, N=23, N=24)24 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 11 (N=11, N=21, N=22)22 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 6 (N=11, N=21, N=22)22 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 18 (N=11, N=24, N=24)24 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 52 (N=9, N=23, N=25)25 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 45 (N=11, N=26, N=25)25 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 31 (N=11, N=24, N=23)23 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase AAnti-HPV 58 (N=10, N=24, N=22)22 Participants
Primary

Number of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase B

A vaccinated participant was considered seropositive for a given HPV type if her serum antibody titer by cLIA for the HPV type was greater than the serostatus cutoff. The serostatus cutoffs for HPV Types 6, 11, 16, 18, 31, 45, 52, and 58 were 20, 20, 20, 20, 16, 16, 20, and 16 mMU/mL, respectively.

Time frame: 4 weeks postdose 3 (Phase B)

Population: PPI population: All participants who were not protocol violators, received all 3 vaccinations within acceptable day ranges, were seronegative at Day 1 and PCR-negative Day 1 through Month 7~for the relevant HPV type(s), and had a valid Month 7 serology result collected in the appropriate day range.

ArmMeasureGroupValue (NUMBER)
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 6 (N=10, N=19, N=23)10 Participants
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 11 (N=10, N=19, N=23)10 Participants
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 16 (N=7, N=19, N=20)7 Participants
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 18 (N=10, N=19, N=25)10 Participants
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 31 (N=11, N=22, N=24)9 Participants
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 45 (N=11, N=20, N=24)2 Participants
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 52 (N=10, N=20, N=23)0 Participants
qHPV (GARDASIL™) - Phase A ControlNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 58 (N=9, N=21, N=24)2 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 16 (N=7, N=19, N=20)19 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 52 (N=10, N=20, N=23)20 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 18 (N=10, N=19, N=25)19 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 31 (N=11, N=22, N=24)22 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 45 (N=11, N=20, N=24)20 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 6 (N=10, N=19, N=23)19 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 11 (N=10, N=19, N=23)19 Participants
Octavalent HPV With 15 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 58 (N=9, N=21, N=24)21 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 16 (N=7, N=19, N=20)20 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 11 (N=10, N=19, N=23)23 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 6 (N=10, N=19, N=23)23 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 18 (N=10, N=19, N=25)25 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 52 (N=10, N=20, N=23)23 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 45 (N=11, N=20, N=24)24 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 31 (N=11, N=22, N=24)24 Participants
Octavalent HPV With 30 mcg IMX / AAHSNumber of Participants Who Seroconverted to Each of the HPV Types Contained in the Vaccine During Phase BAnti-HPV 58 (N=9, N=21, N=24)24 Participants

Source: ClinicalTrials.gov · Data processed: Mar 9, 2026