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Evaluation of Safety and Immunogenicity of Co-administering Human Papillomavirus Vaccine With Another Vaccine in Healthy Female Subjects

Immunogenicity and Safety Study of GSK Biologicals' HPV Vaccine (GSK-580299) Co-administered With a Commercially Available Vaccine in Healthy Female Adolescents

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00578227
Enrollment
814
Registered
2007-12-21
Start date
2007-12-15
Completion date
2009-04-28
Last updated
2018-08-17

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

Conditions

Infections, Papillomavirus

Keywords

Human papillomavirus infection,, cervical cancer, HPV vaccine,

Brief summary

Infection with human papillomavirus (HPV) has been clearly established as the central cause of cervical cancer. Vaccination of pre-teens and adolescents, ideally before sexual debut and thus before exposure to oncogenic HPV, is a rational strategy for prevention of cervical cancer, and so HPV vaccination could complement the existing pre-adolescent/adolescent vaccination programs. Therefore, this Phase IIIb study is designed to evaluate the safety and immunogenicity of co-administering a commercially available vaccine with GSK Biologicals' HPV-16/18 L1 AS04 (Cervarix ®) vaccine as compared to the administration of either vaccine alone. This Protocol Posting has been updated in order to comply with the FDA AA, Sept 2007.

Interventions

BIOLOGICALCervarix™

Three doses of vaccine administered intramuscularly with the second and third dose given one month and six months after the first dose

BIOLOGICALTwinrix ™ Paediatric

Three doses of vaccine administered intramuscularly with the second and third dose given one month and six months after the first dose

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
9 Years to 15 Years
Healthy volunteers
Yes

Inclusion criteria

* Subjects who the investigator believes that they and/or their legally acceptable representatives (LARs) can and will comply with the requirements of the protocol should be enrolled in the study. * A female between, and including, 9 and 15 years of age (has not attained her 16th birthday) at the time of the first vaccination. * Written informed consent obtained from the subject prior to enrolment. For subjects below the legal age of consent, written informed consent must be obtained from the subject's LAR, and written informed assent must be obtained from the subject. * Healthy subjects as established by medical history and clinical examination before entering into the study. * Subjects must not be pregnant. * Subjects must be of non-childbearing potential, or if the subject is of childbearing potential, she must be abstinent or use adequate contraception for 30 days prior to vaccination and must agree to continue such precautions for two months after completion of the vaccination series.

Exclusion criteria

* Use of any investigational or non-registered product (drug or vaccine) other than the study vaccines within 30 days preceding the first dose of study vaccine, or planned use during the study period (up to Month 12). * Concurrently participating in another clinical study, at any time during the study period (up to the Month 12 telephone contact), in which the subject has been or will be exposed to an investigational or a non-investigational product (pharmaceutical product or device). * Chronic administration of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccine dose. * Planned administration/administration of a vaccine not foreseen by the study protocol within 30 days before and 30 days after each dose of vaccine(s). Administration of routine vaccines may be allowed up to 8 days before the first dose * A subject planning to become pregnant, likely to become pregnant or planning to discontinue contraceptive precautions during the study period and up to two months after the last vaccine dose. * Pregnant or breastfeeding women. * Previous vaccination against HPV or planned administration of any HPV vaccine other than that foreseen by the study protocol during the study period. * Previous administration of components of the investigational vaccine. * Previous vaccination against hepatitis A or B planned administration of any hepatitis A or B vaccine other than that foreseen by the study protocol during the study period. * History of hepatitis A or B infection. * Known exposure to hepatitis A or B within the previous 6 weeks. * Known acute or chronic, clinically significant neurologic, hepatic or renal functional abnormality, as determined by previous physical examination or laboratory tests. * Cancer or autoimmune disease under treatment. * History of allergic disease or reactions likely to be exacerbated by any component of the vaccines * Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination * Acute disease at the time of enrolment. * Administration of immunoglobulins and/or any blood products within the three months preceding the first dose of study vaccine or planned administration during the study period.

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects Seroconverted for Anti-hepatitis A (Anti-HAV) AntibodiesAt Month 7Seroconversion is defined as the appearance of anti-HAV antibodies \[i.e., antibody titer greater than or equal to 15 milli-international units/milliliter (mIU/mL)\] in the sera of subjects seronegative (antibody titer below 15 mIU/mL) before vaccination.
Anti-Heptatis A (HAV) Antibody Titers.At Month 7Titers are given as Geometric Mean Titers (GMTs) expressed as mIU/mL.
Number of Subjects Seroprotected for Anti-hepatitis B Surface Antigen (Anti-HBs) AntibodiesAt Month 7A subject seroprotected against HBs is a subject with antibody titers greater than or equal to 10 mIU/mL.
Number of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) AntibodiesAt Month 7Seroconversion is defined as the appearance of antibodies with titers greater than or equal to the predefined cut-off value in the serum of subject seronegative before vaccination. Cut-off values = 8 enzyme-linked immunosorbent assay units per milliliter (EL.U/mL) for anti-HPV-16 antibodies and 7 EL.U/mL for anti-HPV-18 antibodies.
Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody TitersAt Month 7Titers are given as Geometric Mean Titers (GMTs) expressed as Enzyme-linked Immunosorbent Assay Units Per Milliliter (EL.U/mL).

Secondary

MeasureTime frameDescription
Anti-HAV Antibody TitersOne month after the second dose of vaccineTiters are given as geometric mean titers (GMTs) expressed as mIU/mL.
Number of Subjects Seroconverted and Number of Subjects Seroprotected for Anti-HBs AntibodiesOne month after the second dose of vaccineSeroconversion is defined as the appearance of anti-HBs antibodies (i.e., antibody titer greater than or equal to 3.3 mIU/mL) in the sera of subjects seronegative (with antibody titers below 3.3 mIU/mL) before vaccination. A seroprotected subject against HBs is a subject with antibody titers greater than or equal to 10 mIU/mL.
Number of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) AntibodiesOne month after the second dose of vaccineSeroconversion is defined as the appearance of antibodies with titers greater than or equal to the predefined cut-off value in the serum of subject seronegative before vaccination. Cut-off values assessed include 8 enzyme-linked immunosorbent assay units per milliliter (EL.U/mL) for anti-HPV-16 antibodies and 7 EL.U/mL for anti-HPV-18 antibodies.
Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody TitersOne month after the second dose of vaccineTiters are given as Geometric Mean Titers (GMTs) expressed as EL.U/mL.
Anti-HBs Antibody TitersAt Month 7Titers are given as Geometric Mean Titers (GMTs)expressed as mIU/mL.
Number of Subjects Reporting Solicited General SymptomsDuring the 7-day period following vaccinationSolicited general symptoms assessed include arthralgia, fatigue, gastrointestinal symptoms, headache, myalgia, rash, temperature \[axillary route, greater than or equal to 37.5 degree Celsius (°C)\] and urticaria.
Number of Subjects Reporting Medically Significant ConditionsThroughout the active phase of the study (up to Month 7)Medically significant conditions include adverse events (AEs) prompting emergency room or physician visits that are not related to common diseases or routine visits for physical examination or vaccination, or serious adverse events (SAEs) that are not related to common diseases. Common diseases include upper respiratory infections, sinusitis, pharyngitis, gastroenteritis, urinary tract infections, cervico-vaginal yeast infections, menstrual cycle abnormalities and injury.
Number of Subjects Reporting Unsolicited Adverse EventsDuring the 30-day period following any vaccinationUnsolicited adverse events include any adverse event reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms.
Number of Subjects Reporting Serious Adverse Events (SAE)Throughout the study (up to Month 12)SAEs assessed include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization, result in disability/incapacity or are a congenital anomaly/birth defect in the offspring of a study subject.
Number of Subjects Reporting Solicited Local SymptomsDuring the 7-day period (Day 0-6) following vaccinationSolicited local symptoms assessed include injection site pain, redness and swelling. Data are presented across doses.
Number of Subjects Seroconverted for Anti-HBs AntibodiesAt month 7Seroconversion is defined as the appearance of anti-HBs antibodies (i.e., antibody titer greater than or equal to 3.3 mIU/mL) in the sera of subjects seronegative (with antibody titers below 3.3 mIU/mL) before vaccination.
Number of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibodies in Vaccine Recipients Aged 9 YearsAt Month 7Seroconversion is defined as the appearance of antibodies with titers greater than or equal to the predefined cut-off value in the serum of subject seronegative before vaccination. Cut-off values = 8 enzyme-linked immunosorbent assay units per milliliter (EL.U/mL) for anti-HPV-16 antibodies and 7 EL.U/mL for anti-HPV-18 antibodies.
Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody Titers in Vaccine Recipients Aged 9 YearsAt Month 7Titers are given as Geometric Mean Titers (GMTs) expressed as Enzyme-linked Immunosorbent Assay Units Per Milliliter (EL.U/mL).
Number of Subjects Seroconverted for Anti-HAV AntibodiesOne month after the second dose of vaccineSeroconversion is defined as the appearance of anti-HAV antibodies (i.e., antibody titer greater than or equal to 15 mIU/mL) in the sera of subjects seronegative (antibody titer below 15 mIU/mL) before vaccination.

Countries

Canada, Denmark, Hungary, Sweden

Participant flow

Pre-assignment details

Although the total number of enrolled subjects for this study was 814, one subject did not receive any study vaccine and was therefore not considered as started in the 'Participant Flow' section.

Participants by arm

ArmCount
Cervarix™ & Twinrix™ Group
Subjects received 3 doses of Human Papilloma Virus (HPV) vaccine co-administered with combined Hepatitis A & Hepatitis B (HAB) vaccine (Months 0, 1 & 6).
272
Cervarix™ Group
Subjects received 3 doses of HPV vaccine (Months 0, 1 & 6).
270
Twinrix™ Group
Subjects received 3 doses of HAB vaccine (Months 0, 1 & 6).
271
Total813

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyLost to Follow-up011
Overall StudyWithdrawal by Subject513

Baseline characteristics

CharacteristicCervarix™ & Twinrix™ GroupCervarix™ GroupTwinrix™ GroupTotal
Age, Continuous11.2 years
STANDARD_DEVIATION 2.04
11.2 years
STANDARD_DEVIATION 2.02
11.2 years
STANDARD_DEVIATION 1.99
11.2 years
STANDARD_DEVIATION 2.01
Sex: Female, Male
Female
272 Participants270 Participants271 Participants813 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
258 / 272256 / 270224 / 271
serious
Total, serious adverse events
2 / 2724 / 2704 / 271

Outcome results

Primary

Anti-Heptatis A (HAV) Antibody Titers.

Titers are given as Geometric Mean Titers (GMTs) expressed as mIU/mL.

Time frame: At Month 7

Population: Analysis was performed on the ATP cohort for analysis of immunogenicity, in subjects seronegative for anti-HAV before vaccination (i.e. with antibody titer below 15 mIU/mL).

ArmMeasureValue (GEOMETRIC_MEAN)
Cervarix™ & Twinrix™ GroupAnti-Heptatis A (HAV) Antibody Titers.4504.2 mIU/mL
Twinrix™ GroupAnti-Heptatis A (HAV) Antibody Titers.5288.4 mIU/mL
Primary

Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody Titers

Titers are given as Geometric Mean Titers (GMTs) expressed as Enzyme-linked Immunosorbent Assay Units Per Milliliter (EL.U/mL).

Time frame: At Month 7

Population: Analysis was performed on the ATP cohort for analysis of immunogenicity, in subjects seronegative for the corresponding HPV type before vaccination, i.e. with antibody titers below 8 EL.U/mL for anti-HPV-16 antibodies and below 7 EL.U/mL for anti-HPV-18 antibodies.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Cervarix™ & Twinrix™ GroupAnti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody TitersAnti-HPV-16 GMTs22993.5 EL.U/mL
Cervarix™ & Twinrix™ GroupAnti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody TitersAnti-HPV-18 GMTs8671.2 EL.U/mL
Cervarix™ GroupAnti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody TitersAnti-HPV-16 GMTs26981.9 EL.U/mL
Cervarix™ GroupAnti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody TitersAnti-HPV-18 GMTs11182.7 EL.U/mL
Primary

Number of Subjects Seroconverted for Anti-hepatitis A (Anti-HAV) Antibodies

Seroconversion is defined as the appearance of anti-HAV antibodies \[i.e., antibody titer greater than or equal to 15 milli-international units/milliliter (mIU/mL)\] in the sera of subjects seronegative (antibody titer below 15 mIU/mL) before vaccination.

Time frame: At Month 7

Population: Analysis was performed on the According-to-Protocol (ATP) cohort for analysis of immunogenicity, in subjects seronegative for anti-HAV before vaccination (i.e. with antibody titer below 15 mIU/mL).

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cervarix™ & Twinrix™ GroupNumber of Subjects Seroconverted for Anti-hepatitis A (Anti-HAV) Antibodies240 Participants
Twinrix™ GroupNumber of Subjects Seroconverted for Anti-hepatitis A (Anti-HAV) Antibodies242 Participants
Primary

Number of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibodies

Seroconversion is defined as the appearance of antibodies with titers greater than or equal to the predefined cut-off value in the serum of subject seronegative before vaccination. Cut-off values = 8 enzyme-linked immunosorbent assay units per milliliter (EL.U/mL) for anti-HPV-16 antibodies and 7 EL.U/mL for anti-HPV-18 antibodies.

Time frame: At Month 7

Population: Analysis was performed on the ATP cohort for analysis of immunogenicity, in subjects seronegative for the corresponding HPV type before vaccination, i.e. with antibody titers below 8 EL.U/mL for anti-HPV-16 antibodies and below 7 EL.U/mL for anti-HPV-18 antibodies.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cervarix™ & Twinrix™ GroupNumber of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) AntibodiesAnti-HPV-16228 Participants
Cervarix™ & Twinrix™ GroupNumber of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) AntibodiesAnti-HPV-18238 Participants
Cervarix™ GroupNumber of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) AntibodiesAnti-HPV-16233 Participants
Cervarix™ GroupNumber of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) AntibodiesAnti-HPV-18241 Participants
Primary

Number of Subjects Seroprotected for Anti-hepatitis B Surface Antigen (Anti-HBs) Antibodies

A subject seroprotected against HBs is a subject with antibody titers greater than or equal to 10 mIU/mL.

Time frame: At Month 7

Population: Analysis was performed on the ATP cohort for analysis of immunogenicity, in subjects seronegative for anti-HBs before vaccination, i.e. with anti-HBs antibody titer greater than or equal to 3.3 mIU/mL.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cervarix™ & Twinrix™ GroupNumber of Subjects Seroprotected for Anti-hepatitis B Surface Antigen (Anti-HBs) Antibodies175 Participants
Twinrix™ GroupNumber of Subjects Seroprotected for Anti-hepatitis B Surface Antigen (Anti-HBs) Antibodies161 Participants
Secondary

Anti-HAV Antibody Titers

Titers are given as geometric mean titers (GMTs) expressed as mIU/mL.

Time frame: One month after the second dose of vaccine

Population: Analysis was performed on a subset from the ATP cohort for analysis of immunogenicity, in subjects for which a blood sample was taken at Month 2 and were seronegative for anti-HAV before vaccination, i.e. with anti-HAV antibody titers below 15 mIU/mL.

ArmMeasureValue (GEOMETRIC_MEAN)
Cervarix™ & Twinrix™ GroupAnti-HAV Antibody Titers467.0 mIU/mL
Twinrix™ GroupAnti-HAV Antibody Titers513.9 mIU/mL
Secondary

Anti-HBs Antibody Titers

Titers are given as Geometric Mean Titers (GMTs)expressed as mIU/mL.

Time frame: At Month 7

Population: Analysis was performed on the ATP cohort for analysis of immunogenicity, in subjects seronegative for anti-HBs before vaccination, i.e. with anti-HBs antibody titers below 3.3 mIU/mL.

ArmMeasureValue (GEOMETRIC_MEAN)
Cervarix™ & Twinrix™ GroupAnti-HBs Antibody Titers3136.5 mIU/mL
Twinrix™ GroupAnti-HBs Antibody Titers5646.5 mIU/mL
Secondary

Anti-HBs Antibody Titers

Titers are given as geometric mean titers (GMTs) expressed as mIU/mL.

Time frame: One month after the second dose of vaccine

Population: Analysis was performed on a subset from the ATP cohort for analysis of immunogenicity, in subjects for which a blood sample was taken at Month 2 and were seronegative for anti-HBs before vaccination, i.e. with antibody titers below 3.3 mIU/mL.

ArmMeasureValue (GEOMETRIC_MEAN)
Cervarix™ & Twinrix™ GroupAnti-HBs Antibody Titers33.7 mIU/mL
Twinrix™ GroupAnti-HBs Antibody Titers43.0 mIU/mL
Secondary

Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody Titers

Titers are given as Geometric Mean Titers (GMTs) expressed as EL.U/mL.

Time frame: One month after the second dose of vaccine

Population: Analysis was performed on a subset from the ATP cohort for analysis of immunogenicity, in subjects for which a blood sample was taken at Month 2 and were seronegative for the corresponding HPV type before vaccination, i.e. with antibody titers below 8 EL.U/mL for anti-HPV-16 antibodies and below 7 EL.U/mL for anti-HPV-18 antibodies.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Cervarix™ & Twinrix™ GroupAnti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody TitersAnti-HPV-16 GMTs5215.2 EL.U/mL
Cervarix™ & Twinrix™ GroupAnti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody TitersAnti-HPV-18 GMTs4496.8 EL.U/mL
Cervarix™ GroupAnti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody TitersAnti-HPV-16 GMTs4967.2 EL.U/mL
Cervarix™ GroupAnti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody TitersAnti-HPV-18 GMTs4266.5 EL.U/mL
Secondary

Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody Titers in Vaccine Recipients Aged 9 Years

Titers are given as Geometric Mean Titers (GMTs) expressed as Enzyme-linked Immunosorbent Assay Units Per Milliliter (EL.U/mL).

Time frame: At Month 7

Population: Analysis was performed in 9-year old subjects from the ATP cohort for analysis of immunogenicity, who were seronegative for the corresponding HPV type before vaccination, i.e. with antibody titers below 8 EL.U/mL for anti-HPV-16 antibodies and below 7 EL.U/mL for anti-HPV-18 antibodies.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
9-Year Old Cervarix Vaccine RecipientsAnti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody Titers in Vaccine Recipients Aged 9 YearsAnti-HPV-16 GMTs32170.2 EL.U/mL
9-Year Old Cervarix Vaccine RecipientsAnti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibody Titers in Vaccine Recipients Aged 9 YearsAnti-HPV-18 GMTs12257.1 EL.U/mL
Secondary

Number of Subjects Reporting Medically Significant Conditions

Medically significant conditions include adverse events (AEs) prompting emergency room or physician visits that are not related to common diseases or routine visits for physical examination or vaccination, or serious adverse events (SAEs) that are not related to common diseases. Common diseases include upper respiratory infections, sinusitis, pharyngitis, gastroenteritis, urinary tract infections, cervico-vaginal yeast infections, menstrual cycle abnormalities and injury.

Time frame: Throughout the active phase of the study (up to Month 7)

Population: Analysis was performed on the Total Vaccinated Cohort, on subjects with available data.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Medically Significant Conditions22 Participants
Cervarix™ GroupNumber of Subjects Reporting Medically Significant Conditions23 Participants
Twinrix™ GroupNumber of Subjects Reporting Medically Significant Conditions31 Participants
Secondary

Number of Subjects Reporting Medically Significant Conditions

Medically significant conditions include adverse events (AEs) prompting emergency room or physician visits that are not related to common diseases or routine visits for physical examination or vaccination, or serious adverse events (SAEs) that are not related to common diseases. Common diseases include upper respiratory infections, sinusitis, pharyngitis, gastroenteritis, urinary tract infections, cervico-vaginal yeast infections, menstrual cycle abnormalities and injury.

Time frame: Throughout the safety follow-up (from Month 7 up to Month 12)

Population: Analysis was performed on the Total Vaccinated Cohort, on subjects with available data.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Medically Significant Conditions2 Participants
Cervarix™ GroupNumber of Subjects Reporting Medically Significant Conditions2 Participants
Twinrix™ GroupNumber of Subjects Reporting Medically Significant Conditions1 Participants
Secondary

Number of Subjects Reporting Serious Adverse Events (SAE)

SAEs assessed include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization, result in disability/incapacity or are a congenital anomaly/birth defect in the offspring of a study subject.

Time frame: Throughout the study (up to Month 12)

Population: Analysis was performed on the Total Vaccinated Cohort, on subjects with available data.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Serious Adverse Events (SAE)2 Participants
Cervarix™ GroupNumber of Subjects Reporting Serious Adverse Events (SAE)4 Participants
Twinrix™ GroupNumber of Subjects Reporting Serious Adverse Events (SAE)4 Participants
Secondary

Number of Subjects Reporting Solicited General Symptoms

Solicited general symptoms assessed include arthralgia, fatigue, gastrointestinal symptoms, headache, myalgia, rash, temperature \[axillary route, greater than or equal to 37.5 degree Celsius (°C)\] and urticaria.

Time frame: During the 7-day period following vaccination

Population: Analysis was performed on the Total Vaccinated Cohort, on subjects with available data.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsHeadache125 Participants
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsFatigue122 Participants
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsGastrointestinal70 Participants
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsFever24 Participants
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsUrticaria6 Participants
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsRash18 Participants
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsArthralgia50 Participants
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsMyalgia103 Participants
Cervarix™ GroupNumber of Subjects Reporting Solicited General SymptomsFever28 Participants
Cervarix™ GroupNumber of Subjects Reporting Solicited General SymptomsRash21 Participants
Cervarix™ GroupNumber of Subjects Reporting Solicited General SymptomsUrticaria11 Participants
Cervarix™ GroupNumber of Subjects Reporting Solicited General SymptomsMyalgia99 Participants
Cervarix™ GroupNumber of Subjects Reporting Solicited General SymptomsGastrointestinal65 Participants
Cervarix™ GroupNumber of Subjects Reporting Solicited General SymptomsFatigue133 Participants
Cervarix™ GroupNumber of Subjects Reporting Solicited General SymptomsHeadache124 Participants
Cervarix™ GroupNumber of Subjects Reporting Solicited General SymptomsArthralgia45 Participants
Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsUrticaria9 Participants
Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsArthralgia40 Participants
Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsFatigue119 Participants
Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsFever14 Participants
Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsGastrointestinal72 Participants
Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsHeadache110 Participants
Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsMyalgia75 Participants
Twinrix™ GroupNumber of Subjects Reporting Solicited General SymptomsRash12 Participants
Secondary

Number of Subjects Reporting Solicited Local Symptoms

Solicited local symptoms assessed include injection site pain, redness and swelling. Data are presented across doses.

Time frame: During the 7-day period (Day 0-6) following vaccination

Population: Analysis was performed on the Total Vaccinated Cohort, on subjects with available data.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Solicited Local SymptomsSwelling146 Participants
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Solicited Local SymptomsRedness155 Participants
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Solicited Local SymptomsPain251 Participants
Cervarix™ GroupNumber of Subjects Reporting Solicited Local SymptomsSwelling137 Participants
Cervarix™ GroupNumber of Subjects Reporting Solicited Local SymptomsPain250 Participants
Cervarix™ GroupNumber of Subjects Reporting Solicited Local SymptomsRedness170 Participants
Twinrix™ GroupNumber of Subjects Reporting Solicited Local SymptomsRedness74 Participants
Twinrix™ GroupNumber of Subjects Reporting Solicited Local SymptomsPain202 Participants
Twinrix™ GroupNumber of Subjects Reporting Solicited Local SymptomsSwelling56 Participants
Secondary

Number of Subjects Reporting Unsolicited Adverse Events

Unsolicited adverse events include any adverse event reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms.

Time frame: During the 30-day period following any vaccination

Population: Analysis was performed on the Total Vaccinated Cohort, on subjects with available data.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cervarix™ & Twinrix™ GroupNumber of Subjects Reporting Unsolicited Adverse Events83 Participants
Cervarix™ GroupNumber of Subjects Reporting Unsolicited Adverse Events96 Participants
Twinrix™ GroupNumber of Subjects Reporting Unsolicited Adverse Events83 Participants
Secondary

Number of Subjects Seroconverted and Number of Subjects Seroprotected for Anti-HBs Antibodies

Seroconversion is defined as the appearance of anti-HBs antibodies (i.e., antibody titer greater than or equal to 3.3 mIU/mL) in the sera of subjects seronegative (with antibody titers below 3.3 mIU/mL) before vaccination. A seroprotected subject against HBs is a subject with antibody titers greater than or equal to 10 mIU/mL.

Time frame: One month after the second dose of vaccine

Population: Analysis was performed on a subset from the ATP cohort for analysis of immunogenicity, in subjects for which a blood sample was taken at Month 2 and were seronegative for anti-HBs with antibody titers below 3.3 mIU/mL.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cervarix™ & Twinrix™ GroupNumber of Subjects Seroconverted and Number of Subjects Seroprotected for Anti-HBs AntibodiesSeroconverted68 Participants
Cervarix™ & Twinrix™ GroupNumber of Subjects Seroconverted and Number of Subjects Seroprotected for Anti-HBs AntibodiesSeroprotected60 Participants
Twinrix™ GroupNumber of Subjects Seroconverted and Number of Subjects Seroprotected for Anti-HBs AntibodiesSeroconverted56 Participants
Twinrix™ GroupNumber of Subjects Seroconverted and Number of Subjects Seroprotected for Anti-HBs AntibodiesSeroprotected53 Participants
Secondary

Number of Subjects Seroconverted for Anti-HAV Antibodies

Seroconversion is defined as the appearance of anti-HAV antibodies (i.e., antibody titer greater than or equal to 15 mIU/mL) in the sera of subjects seronegative (antibody titer below 15 mIU/mL) before vaccination.

Time frame: One month after the second dose of vaccine

Population: Analysis was performed on a subset from the ATP cohort for analysis of immunogenicity, in subjects for which a blood sample was taken at Month 2 and were seronegative for anti-HAV before vaccination, i.e. with anti-HAV antibody titers below 15 mIU/mL.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cervarix™ & Twinrix™ GroupNumber of Subjects Seroconverted for Anti-HAV Antibodies112 Participants
Twinrix™ GroupNumber of Subjects Seroconverted for Anti-HAV Antibodies112 Participants
Secondary

Number of Subjects Seroconverted for Anti-HBs Antibodies

Seroconversion is defined as the appearance of anti-HBs antibodies (i.e., antibody titer greater than or equal to 3.3 mIU/mL) in the sera of subjects seronegative (with antibody titers below 3.3 mIU/mL) before vaccination.

Time frame: At month 7

Population: Analysis was performed on the ATP cohort for analysis of immunogenicity, in subjects seronegative for anti-HBs before vaccination.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cervarix™ & Twinrix™ GroupNumber of Subjects Seroconverted for Anti-HBs Antibodies175 Participants
Twinrix™ GroupNumber of Subjects Seroconverted for Anti-HBs Antibodies161 Participants
Secondary

Number of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibodies

Seroconversion is defined as the appearance of antibodies with titers greater than or equal to the predefined cut-off value in the serum of subject seronegative before vaccination. Cut-off values assessed include 8 enzyme-linked immunosorbent assay units per milliliter (EL.U/mL) for anti-HPV-16 antibodies and 7 EL.U/mL for anti-HPV-18 antibodies.

Time frame: One month after the second dose of vaccine

Population: Analysis was performed on a subset from the ATP cohort for analysis of immunogenicity, in subjects for which a blood sample was taken at Month 2 and were seronegative for the corresponding HPV type before vaccination, i.e. with antibody titers below 8 EL.U/mL for anti-HPV-16 antibodies and below 7 EL.U/mL for anti-HPV-18 antibodies.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cervarix™ & Twinrix™ GroupNumber of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) AntibodiesAnti-HPV-16105 Participants
Cervarix™ & Twinrix™ GroupNumber of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) AntibodiesAnti-HPV-18112 Participants
Cervarix™ GroupNumber of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) AntibodiesAnti-HPV-16106 Participants
Cervarix™ GroupNumber of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) AntibodiesAnti-HPV-18111 Participants
Secondary

Number of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibodies in Vaccine Recipients Aged 9 Years

Seroconversion is defined as the appearance of antibodies with titers greater than or equal to the predefined cut-off value in the serum of subject seronegative before vaccination. Cut-off values = 8 enzyme-linked immunosorbent assay units per milliliter (EL.U/mL) for anti-HPV-16 antibodies and 7 EL.U/mL for anti-HPV-18 antibodies.

Time frame: At Month 7

Population: Analysis was performed in 9-year old subjects from the ATP cohort for analysis of immunogenicity, who were seronegative for the corresponding HPV type before vaccination, i.e. with antibody titers below 8 EL.U/mL for anti-HPV-16 antibodies and below 7 EL.U/mL for anti-HPV-18 antibodies.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
9-Year Old Cervarix Vaccine RecipientsNumber of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibodies in Vaccine Recipients Aged 9 YearsAnti-HPV-16156 Participants
9-Year Old Cervarix Vaccine RecipientsNumber of Subjects Seroconverted for Anti-human Papilloma Virus 16 (Anti-HPV-16) and Anti-human Papilloma Virus 18 (Anti-HPV-18) Antibodies in Vaccine Recipients Aged 9 YearsAnti-HPV-18161 Participants

Source: ClinicalTrials.gov · Data processed: Mar 27, 2026