This is a multicenter study in which women are planned to receive either the HPV vaccine or control. Study participation will last approximately 72 months and involves a total of thirteen or fourteen scheduled visits. Originally, the study was planned for 24 months. It was then extended for 2 more years with 4 additional visits (study end at Month 48). The protocol posting has been updated as the study was extended by additional 2 years with two or three additional visits (study end at Month 72) for subjects who consent to participate in the extension.
This protocol posting has been updated following protocol amendment 6 dated 24 April 2014.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
6,081
Subjects were planned to receive three doses of the study vaccine administered intramuscularly according to a 0, 1, 6 month vaccination schedule.
Subjects were planned to receive three doses of the placebo control administered intramuscularly according to a 0, 1, 6 month vaccination schedule.
GSK Investigational Site
Jintan, Jiangsu, China
GSK Investigational Site
Lianshui, Jiangsu, China
GSK Investigational Site
Xuzhou, Jiangsu, China
GSK Investigational Site
Yancheng, Jiangsu, China
Number of Subjects With Histopathologically-confirmed Cervical Intraepithelial Neoplasia (CIN1+) and/or Persistent Infection (6 Month+ Definition) Associated With Human Papillomavirus (HPV)-16 and/or HPV-18 at Month 24
CIN1+ = CIN 1, 2, and 3, low/high-grade cervical glandular intraepithelial neoplasia (L/HCGIN), adenocarcinoma in-situ (AIS) or invasive cervical cancer. Persistent infection (6-month+ definition) = at least 2 positive HPV deoxyribonucleic acid (DNA) polymerase chain reaction (PCR) assays for the same viral genotype with no negative DNA sample between the 2 positive DNA samples, over an interval of approximately 6 months. The analyses were done on subjects HPV DNA negative at baseline (Month 0) and Month 6 and seronegative at baseline (Month 0) or on subjects DNA negative at baseline (Month 0) and Month 6, regardless of initial serostatus.
Time frame: At Month 24
Number of Subjects With Histopathologically-confirmed Cervical Intraepithelial Neoplasia (CIN1+) and/or Persistent Infection (6 Month+ Definition) Associated With Human Papillomavirus (HPV)-16 and/or HPV-18 at Month 48
CIN1+ = CIN 1, 2, and 3, low/high-grade cervical glandular intraepithelial neoplasia (L/HCGIN), adenocarcinoma in-situ (AIS) or invasive cervical cancer. Persistent infection (6-month+ definition) = at least 2 positive HPV deoxyribonucleic acid (DNA) polymerase chain reaction (PCR) assays for the same viral genotype with no negative DNA sample between the 2 positive DNA samples, over an interval of approximately 6 months. The analyses were done on subjects HPV DNA negative at baseline (Month 0) and Month 6 and seronegative at baseline (Month 0) or on subjects DNA negative at baseline (Month 0) and Month 6, regardless of initial serostatus.
Time frame: At Month 48
Number of Subjects With Histopathologically-confirmed Cervical Intraepithelial Neoplasia (CIN1+) and/or Persistent Infection (6 Month+ Definition) Associated With Human Papillomavirus (HPV)-16 and/or HPV-18 at Month 57
CIN1+ = CIN 1, 2, and 3, low/high-grade cervical glandular intraepithelial neoplasia (L/HCGIN), adenocarcinoma in-situ (AIS) or invasive cervical cancer. Persistent infection (6-month+ definition) = at least 2 positive HPV deoxyribonucleic acid (DNA) polymerase chain reaction (PCR) assays for the same viral genotype with no negative DNA sample between the 2 positive DNA samples, over an interval of approximately 6 months. The analyses were done on subjects HPV DNA negative at baseline (Month 0) and Month 6 and seronegative at baseline (Month 0) or on subjects DNA negative at baseline (Month 0) and Month 6, regardless of initial serostatus.
Time frame: At Month 57
Number of Subjects With Histopathologically-confirmed Cervical Intraepithelial Neoplasia (CIN1+) and/or Persistent Infection (6 Month+ Definition) Associated With Human Papillomavirus (HPV)-16 and/or HPV-18 at Month 72
CIN1+ = CIN 1, 2, and 3, low/high-grade cervical glandular intraepithelial neoplasia (L/HCGIN), adenocarcinoma in-situ (AIS) or invasive cervical cancer. Persistent infection (6-month+ definition) = at least 2 positive HPV deoxyribonucleic acid (DNA) polymerase chain reaction (PCR) assays for the same viral genotype with no negative DNA sample between the 2 positive DNA samples, over an interval of approximately 6 months. The analyses were done on subjects HPV DNA negative at baseline (Month 0) and Month 6 and seronegative at baseline (Month 0) or on subjects DNA negative at baseline (Month 0) and Month 6, regardless of initial serostatus.
Time frame: At Month 72
Number of Subjects With Incident Cervical Infection With HPV-16 and/or HPV-18
HPV-16 and/or HPV-18 incident infection is defined as at least one positive HPV-16 or HPV-18 DNA PCR assay at the time point considered. - DNA- and sero-: subjects HPV DNA negative at Months 0 and 6 by PCR and seronegative at Month 0 for the corresponding HPV-type by Enzyme-linked Immunosorbent Assay (ELISA) - Overall: subjects DNA- at Months 0 and 6 for the corresponding HPV-type, regardless of initial serostatus.
Time frame: At Months 24,48, 57 and 72
Number of Subjects With Persistent Cervical Infection (6-month+ Definition) With HPV-16 and/or HPV-18
Persistent HPV-16 and/or HPV-18 infection (6-month+ definition) = at least 2 positive HPV deoxyribonucleic acid (DNA) polymerase chain reaction (PCR) assays for the same viral genotype with no negative DNA sample between the two positive DNA samples, over an interval of approximately 6 months. Subjects had at least 5 months of follow-up after Month 12. DNA- and sero-: subjects HPV DNA negative at Months 0 and 6 by PCR and seronegative at Month 0 for the corresponding HPV-type by ELISA Overall: subjects DNA- at Months 0 and 6 for the corresponding HPV-type, regardless of initial serostatus.
Time frame: At Months 24, 48, 57 and 72
Number of Subjects With Persistent Cervical Infection (12-month+ Definition) With HPV-16 and/or HPV-18
Persistent infection (12-month+ definition) is defined as the detection of the same HPV type(s) (by PCR) in cervical samples at all available time points over an interval of approximately 12 months. Subjects had at least 10 months of follow-up after Month 12. DNA- and sero-: subjects HPV DNA negative at Months 0 and 6 by PCR and seronegative at Month 0 for the corresponding HPV-type by Enzyme-linked Immunosorbent Assay (ELISA). Overall: subjects DNA- at Months 0 and 6 for the corresponding HPV-type, regardless of initial serostatus.
Time frame: At Months 24, 48, 57 and 72
Number of Subjects With Incident Cervical Infection With Any Oncogenic HPV Type
Oncogenic HPV types assessed were HPV-16, -18, -31, -33, -35, -39, -45, -51, -52, -56, -58, -59, -66 and -68 individually or in combination. Subjects were HPV DNA- at Months 0 and 6 for the corresponding HPV-type, regardless of initial serostatus. HRW-HPV=All high-risk (oncogenic) HPV types excluding HPV-16 and HPV-18 HR-HPV=High-risk (oncogenic) HPV types: HPV-16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66 and 68.
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Time frame: At Months 24, 48, 57 and 72
Number of Subjects With Persistent Cervical Infection (6-month+ Definition) With Any Oncogenic HPV Type
Oncogenic HPV types assessed were HPV-16, -18, -31, -33, -35, -39, -45, -51, -52, -56, -58, -59, -66 and -68 individually or in combination. Subjects were HPV DNA- at Months 0 and 6 for the corresponding HPV-type, regardless of initial serostatus. HRW-HPV=All high-risk (oncogenic) HPV types excluding HPV-16 and HPV-18 HR-HPV=High-risk (oncogenic) HPV types: HPV-16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66 and 68.
Time frame: At Months 24, 48, 57 and 72
Number of Subjects With Persistent Cervical Infection (12-month+ Definition) With Any Oncogenic HPV Type
Oncogenic HPV types assessed were HPV-16, -18, -31, -33, -35, -39, -45, -51, -52, -56, -58, -59, -66 and -68 individually or in combination. Subjects were HPV DNA- at Months 0 and 6 for the corresponding HPV-type, regardless of initial serostatus. HRW-HPV=All high-risk (oncogenic) HPV types excluding HPV-16 and HPV-18 HR-HPV=High-risk (oncogenic) HPV types: HPV-16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66 and 68.
Time frame: At Months 24,48, 57 and 72
Number of Subjects With Any Cytological Abnormality Including Atypical Squamous Cells of Undetermined Significance (ASC-US+) Associated With HPV-16 and/or HPV-18 Cervical Infection
Cytological abnormalities = atypical squamous cells of undetermined significance (ASC-DNA- and sero-: subjects HPV DNA negative at Months 0 and 6 by PCR and seronegative at Month 0 for the corresponding HPV-type by Enzyme-linked Immunosorbent Assay (ELISA) Overall: subjects DNA- at Months 0 and 6 for the corresponding HPV-type, regardless of initial serostatus. US).
Time frame: At Months 24, 48, 57 and 72
Number of Subjects With Any Cytological Abnormality Including Atypical Squamous Cells of Undetermined Significance (ASC-US+) Associated With Any Oncogenic HPV Type
Cytological abnormalities = atypical squamous cells of undetermined significance (ASC-US). Oncogenic HPV types assessed were HPV-16, -18, -31, -33, -35, -39, -45, -51, -52, -56, -58, -59, -66 and -68 individually or in combination. Subjects were HPV DNA- at Months 0 and 6 for the corresponding HPV-type, regardless of initial serostatus. HRW-HPV=All high-risk (oncogenic) HPV types excluding HPV-16 and HPV-18 HR-HPV=High-risk (oncogenic) HPV types: HPV-16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66 and 68.
Time frame: At Months 24, 48, 57 and 72
Number of Subjects With Histopathologically-confirmed CIN1+ Associated With HPV-16 and/or HPV-18 Cervical Infection
CIN1+ = CIN grades 1, 2, and3, low-grade cervical glandular intraepithelial neoplasia (LCGIN), high grade cervical glandular intraepithelial neoplasia (HCGIN), adenocarcinoma in-situ (AIS) or invasive cervical cancer. DNA- and sero-: subjects HPV DNA negative at Months 0 and 6 by PCR and seronegative at Month 0 for the corresponding HPV-type by Enzyme-linked Immunosorbent Assay (ELISA) Overall: subjects DNA- at Months 0 and 6 for the corresponding HPV-type, regardless of initial serostatus.
Time frame: At Months 24, 48, 57 and 72
Number of Subjects With Histopathologically-confirmed CIN2+ Associated With HPV-16 and/or HPV-18 Cervical Infection
CIN2+ = CIN grades 2 and 3, LCGIN, HCGIN, AIS or invasive cervical cancer. DNA- and sero-: subjects HPV DNA negative at Months 0 and 6 by PCR and seronegative at Month 0 for the corresponding HPV-type by Enzyme-linked Immunosorbent Assay (ELISA) Overall: subjects DNA- at Months 0 and 6 for the corresponding HPV-type, regardless of initial serostatus.
Time frame: At Months 24, 48, 57 and 72
Number of Subjects With Histopathologically-confirmed CIN1+ Associated With Cervical Infection With Any Oncogenic HPV Type
CIN1+ = CIN grades 1, 2 and 3, LCGIN, HCGIN, AIS or invasive cervical cancer. Oncogenic HPV types assessed were HPV-16, -18, -31, -33, -35, -39, -45, -51, -52, -56, -58, -59, -66 and -68 individually or in combination. Subjects were HPV DNA- at Months 0 and 6 for the corresponding HPV-type, regardless of initial serostatus. HRW-HPV=All high-risk (oncogenic) HPV types excluding HPV-16 and HPV-18 HR-HPV=High-risk (oncogenic) HPV types: HPV-16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66 and 68.
Time frame: At Months 24, 48, 57 and 72
Number of Subjects With Histopathologically-confirmed CIN2+ Associated With Cervical Infection With Any Oncogenic HPV Type
CIN2+ = CIN grades 2 and 3, LCGIN, HCGIN, AIS or invasive cervical cancer. Oncogenic HPV types assessed were HPV-16, -18, -31, -33, -35, -39, -45, -51, -52, -56, -58, -59, -66 and -68 individually or in combination. Subjects were HPV DNA- at Months 0 and 6 for the corresponding HPV-type, regardless of initial serostatus. HRW-HPV=All high-risk (oncogenic) HPV types excluding HPV-16 and HPV-18 HR-HPV=High-risk (oncogenic) HPV types: HPV-16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66 and 68.
Time frame: At Months 24, 48, 57 and 72
Number of Subjects With Any and Severe (Grade 3) Solicited Local Symptoms
Solicited local symptoms assessed were pain, redness and swelling. Any = solicited local symptom reported irrespective of intensity grade, Grade 3 Pain = pain that prevented normal activity, Grade 3 Swelling or Redness = swelling or redness above (\>) 50 millimeter (mm). All local symptoms were considered as related to the study vaccination.
Time frame: Within 7 days (Days 0-6) after vaccination
Number of Subjects With Any and Severe (Grade 3) Solicited Local Symptoms, for Subjects Seronegative and DNA Negative for Both HPV-16 and HPV-18 at Baseline
Solicited local symptoms assessed were pain, redness and swelling. Any = solicited local symptom reported irrespective of intensity grade Grade 3 Pain = pain that prevented normal activity Grade 3 Swelling or Redness = swelling/redness above (\>) 50 millimeter (mm). All local symptoms were considered as related to the study vaccination.
Time frame: Within 7 days (Days 0-6) after vaccination
Number of Subjects With Any and Severe (Grade 3) Solicited Local Symptoms, for Subjects Seropositive and/or DNA Positive for Either HPV-16 or HPV-18 at Baseline
Solicited local symptoms assessed were pain, redness and swelling. Any = solicited local symptom reported irrespective of intensity grade Grade 3 Pain = pain that prevented normal activity, Grade 3 Swelling or Redness = swelling/redness above (\>) 50 millimeter (mm). All local symptoms were considered as related to the study vaccination.
Time frame: Within 7 days (Days 0-6) after vaccination
Number of Subjects With Any and Severe (Grade 3) Solicited Local Symptoms, for Subjects DNA Positive for Either HPV-16 or HPV-18 at Baseline
Solicited local symptoms assessed were pain, redness and swelling. Any = solicited local symptom reported irrespective of intensity grade, Grade 3 Redness, Swelling = redness/swelling above 50 millimeter All local symptoms were considered as related to the study vaccination
Time frame: Within 7 days (Days 0-6) after vaccination
Number of Subjects With Any, Severe (Grade 3) and Causally Related to Vaccination Solicited General Symptoms.
Solicited general symptoms assessed were arthralgia, fatigue, gastrointestinal, headache, myalgia, rash, fever (= axillary temperature above 37.0 degrees Celsius) and urticaria. Any = any solicited general symptom reported irrespective of intensity grade and relationship to vaccination, Related = symptoms assessed by the investigator as causally related to study vaccination, Grade 3 symptoms = prevented normal activity, Grade 3 urticaria = distributed on at least 4 body areas.
Time frame: Within 7 days (Days 0-6) after vaccination
Number of Subjects With Any, Severe (Grade 3) and Causally Related to Vaccination Solicited General Symptoms, for Subjects Seronegative and DNA Negative for Both HPV-16 and HPV-18 at Baseline
Solicited general symptoms assessed were arthralgia, fatigue, gastrointestinal, headache, myalgia, rash, fever (= axillary temperature above 37.0°C) and urticaria. Any = any solicited general symptom reported irrespective of intensity grade and relationship to vaccination Related = symptoms assessed by the investigator as causally related to study vaccination Grade 3 symptoms = symptoms that prevented normal activity Grade 3 urticaria = urticaria distributed on at least 4 body areas.
Time frame: Within 7 days (Days 0-6) after vaccination
Number of Subjects With Any, Severe (Grade 3) and Causally Related to Vaccination Solicited General Symptoms, for Subjects Seropositive and/or DNA Positive for Either HPV-16 or HPV-18 at Baseline
Solicited general symptoms assessed were arthralgia, fatigue, gastrointestinal, headache, myalgia, rash, fever (= axillary temperature above 37.0°C) and urticaria. Any = any solicited general symptom reported irrespective of intensity grade and relationship to vaccination Related = symptoms assessed by the investigator as causally related to study vaccination Grade 3 symptoms = symptoms that prevented normal activity Grade 3 urticaria = urticaria distributed on at least 4 body areas
Time frame: Within 7 days (Days 0-6) after vaccination
Number of Subjects With Any, Severe (Grade 3) and Causally Related to Vaccination Solicited General Symptoms, for Subjects DNA Positive for Either HPV-16 or HPV-18 at Baseline
Solicited general symptoms assessed were arthralgia, fatigue, gastrointestinal, headache, myalgia, rash, fever (= axillary temperature above 37.0°C) and urticaria. Any = any solicited general symptom reported irrespective of intensity grade and relationship to vaccination Related = symptoms assessed by the investigator as causally related to study vaccination Grade 3 symptoms = symptoms that prevented normal activity Grade 3 urticaria = urticaria distributed on at least 4 body areas
Time frame: Within 7 days (Days 0-6) after vaccination
Number of Subjects With Any, Severe (Grade 3) and Causally Related to Vaccination Unsolicited Adverse Events (AEs)
An unsolicited adverse event is any adverse event (i.e. any untoward medical occurrence in a patient or clinical investigation subject, temporally associated with use of a medicinal product, whether or not considered related to the medicinal product) 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. Related = event assessed by the investigator as causally related to study vaccination Grade 3 = event that prevented normal activity
Time frame: Within Days 0-29 after vaccination
Number of Subjects With Unsolicited Adverse Events for Subjects Seronegative and DNA Negative for Both HPV-16 and HPV-18 at Baseline
An unsolicited adverse event is any adverse event (i.e. any untoward medical occurrence in a patient or clinical investigation subject, temporally associated with use of a medicinal product, whether or not considered related to the medicinal product) 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: Within Days 0-29 after vaccination
Number of Subjects With Unsolicited Adverse Events for Subjects Seropositive and/or DNA Positive for Either HPV-16 or HPV-18 at Baseline
An unsolicited adverse event is any adverse event (i.e. any untoward medical occurrence in a patient or clinical investigation subject, temporally associated with use of a medicinal product, whether or not considered related to the medicinal product) 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: Within Days 0-29 after vaccination
Number of Subjects With Unsolicited Adverse Events for Subjects DNA Positive for Either HPV-16 or HPV-18 at Baseline
An unsolicited adverse event is any adverse event (i.e. any untoward medical occurrence in a patient or clinical investigation subject, temporally associated with use of a medicinal product, whether or not considered related to the medicinal product) 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: Within Days 0-29 after vaccination
Number of Subjects With Serious Adverse Events (SAEs)
SAEs assessed include medical occurrences that results in death, are life threatening, require hospitalization or prolongation of hospitalization, results in disability/incapacity or are a congenital anomaly/birth defect in the offspring of a study subjects.
Time frame: From Day 0 to Month 72
Number of Subjects With Medically Significant Conditions (MSC) Regardless of Causal Relationship to Vaccination and Intensity
Medically significant conditions were defined as: adverse events (AEs) prompting emergency room or physician visits that were not (1) related to common diseases or (2) routine visits for physical examination or vaccination, or SAEs that were not related to common diseases. Common diseases included: upper respiratory infections, sinusitis, pharyngitis, gastroenteritis, urinary tract infections, cervicovaginal yeast infections, menstrual cycle abnormalities and injury.
Time frame: From Day 0 to Month 72
Number of Subjects With Medically Significant Conditions Regardless of Causal Relationship to Vaccination and Intensity for Subjects Seronegative and DNA Negative for Both HPV-16 and HPV-18 at Baseline
Medically significant conditions were defined as: adverse events (AEs) prompting emergency room or physician visits that were not (1) related to common diseases or (2) routine visits for physical examination or vaccination, or SAEs that were not related to common diseases. Common diseases included: upper respiratory infections, sinusitis, pharyngitis, gastroenteritis, urinary tract infections, cervicovaginal yeast infections, menstrual cycle abnormalities and injury.
Time frame: From Day 0 to Month 72
Number of Subjects With Medically Significant Conditions Regardless of Causal Relationship to Vaccination and Intensity for Subjects Seropositive and/or DNA Positive for Either HPV-16 or HPV-18 at Baseline
Medically significant conditions were defined as: adverse events (AEs) prompting emergency room or physician visits that were not (1) related to common diseases or (2) routine visits for physical examination or vaccination, or SAEs that were not related to common diseases. Common diseases included: upper respiratory infections, sinusitis, pharyngitis, gastroenteritis, urinary tract infections, cervicovaginal yeast infections, menstrual cycle abnormalities and injury.
Time frame: From Day 0 to Month 72
Number of Subjects With Medically Significant Conditions Regardless of Causal Relationship to Vaccination and Intensity for Subjects DNA Positive for Either HPV-16 or HPV-18 at Baseline
Medically significant conditions were defined as: adverse events (AEs) prompting emergency room or physician visits that were not (1) related to common diseases or (2) routine visits for physical examination or vaccination, or SAEs that were not related to common diseases. Common diseases included: upper respiratory infections, sinusitis, pharyngitis, gastroenteritis, urinary tract infections, cervicovaginal yeast infections, menstrual cycle abnormalities and injury.
Time frame: From Day 0 to Month 72
Number of Subjects With Pregnancies and Outcomes of Reported Pregnancies
Outcomes of pregnancies were Live infant NO apparent congenital anomaly (ACA), Live infant CA, Elective termination NO ACA, Elective termination CA, Ectopic pregnancy, Spontaneous abortion NO ACA, Stillbirth NO ACA, Stillbirth CA, Lost to follow up and Pregnancy ongoing.
Time frame: From Day 0 to Month 72
Number of Subjects With Pregnancies and Outcomes of Reported Pregnancies for Subjects Seronegative and DNA Negative for Both HPV-16 and HPV-18 at Baseline
Outcomes of pregnancies were Live infant NO apparent congenital anomaly (ACA), Live infant CA, Elective termination NO ACA, Elective termination CA, Ectopic pregnancy, Spontaneous abortion NO ACA, Stillbirth NO ACA, Stillbirth CA, Lost to follow up, Pregnancy ongoing and MIssing.
Time frame: From Day 0 to Month 72
Number of Subjects With Pregnancies and Outcomes of Reported Pregnancies Seropositive and/or DNA Positive for Either HPV-16 or HPV-18 at Baseline
Outcomes of pregnancies were Live infant NO apparent congenital anomaly (ACA), Live infant CA, Elective termination NO ACA, Elective termination CA, Ectopic pregnancy, Spontaneous abortion NO ACA, Stillbirth NO ACA, Stillbirth CA, Lost to follow up, Pregnancy ongoing and Missing.
Time frame: From Day 0 to Month 72
Number of Subjects With Pregnancies and Outcomes of Reported Pregnancies for Subjects DNA Positive for Either HPV-16 or HPV-18 at Baseline
Outcomes of pregnancies were Live infant NO apparent congenital anomaly (ACA), Live infant CA, Elective termination NO ACA, Elective termination CA, Ectopic pregnancy, Spontaneous abortion NO ACA, Stillbirth NO ACA, Stillbirth CA, Lost to follow up and Pregnancy ongoing.
Time frame: From Day 0 to Month 72
Number of Subjects With HPV-16 Antibody Concentration Equal to or Above the Assay Cut-off Value, by Pre-vaccination Status
HPV-16 assay cut-off value was defined as greater than or equal to (≥) 8 ELISA units per millilitre (EL.U/mL) at PRE vaccination, Month 7, 12 and 24 and ≥ 19 EL.U/mL at Month 36, 48 and 72. Seronegative (Sero-) subjects are subjects who had an antibody concentration below 8 EL.U/mL prior to vaccination. Seropositive (Sero+) subjects are subjects who had an antibody concentration ≥ 8 EL.U/mL prior to vaccination.
Time frame: at Months 0 (PRE), 7, 12, 24, 36, 48 and 72
Number of Subjects With HPV-18 Antibody Concentration Equal to or Above the Assay Cut-off Value, by Pre-vaccination Status
HPV-18 assay cut-off value was defined as ≥ 7 EL.U/mL at PRE vaccination, Month 7, 12 and 24 and ≥ 18 EL.U/mL at Month 36, 48 and 72. Seronegative (Sero-) subjects are subjects who had an antibody concentration below 7 EL.U/mL and 18 EL.U/mL prior to vaccination. Seropositive (Sero+) subjects are subjects who had an antibody concentration ≥ 7 EL.U/mL and 18 EL.U/mL prior to vaccination.
Time frame: at Months 0 (PRE), 7, 12, 24, 36, 48 and 72
Geometric Mean Titers for HPV-16/HPV-18 Antibodies, by Pre-vaccination Status
Titers were expressed as geometric mean titers calculated on all subjects, HPV-16 assay cut-off value was defined as greater than or equal to 8 EL.U/mL at Months 0, 7, 12 and 24 and greater than or equal to 19 EL.U/mL at Months 36, 48 and 72. HPV-18 assay cut-off value was defined as ≥ 7 EL.U/mL at Month 0, 7, 12 and 24 and ≥ 18 EL.U/mL at Months 36, 48 and 72. Seronegative (Sero-) subjects are subjects who had an antibody concentration below the assay cut-off value prior to vaccination. Seropositive (Sero+) subjects are subjects who had an antibody concentration ≥ the assay cut-off value prior to vaccination.
Time frame: at Months 0 (PRE), 7, 12, 24, 36, 48 and 72