A Follow-up Extension Study to Evaluate the Persistence of Immune Response to GSK Biologicals' HPV Vaccine in Healthy Chinese Female Subjects Who Received Three Doses of the Vaccine in the HPV-058 Study

Study Overview
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Brief Summary
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The purpose of this study is to evaluate the persistence of immune response in subjects who received the HPV-16/18 vaccine, seven to eight years after the last dose of primary vaccination in the HPV-058 study. No new subjects will be enrolled in this extension study.

Official Title
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Persistence of Immune Response to GSK Biologicals' HPV Vaccine in Healthy Chinese Female Subjects From the HPV-058 Study

Conditions
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Cervical Intraepithelial Neoplasia

Intervention / Treatment
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* Procedure: Blood sampling for antibody determination


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Subjects/subject's parents/legally acceptable representative(s) [LAR(s)] who, in the opinion of the investigator, can and will comply with the requirements of the protocol. Written informed consent obtained from the subject or subject's parents/LAR(s) prior to performing any study specific procedure. Written informed assent obtained from the subjects below the legal age of consent. Subjects who received all three doses of the HPV-16/18 vaccine in the HPV-058 study. Healthy subjects as established by medical history and clinical examination before entering into the study. Exclusion Criteria: Use of any investigational or non-registered product (drug or vaccine which may have an impact on the study objectives) during the period starting 30 days (Day 29 to Day 1) before the study visit. Concurrently participating in another clinical study, in which the subject has been or will be exposed to an investigational or a non-investigational vaccine/product (pharmaceutical product or device). Previous vaccination against HPV outside the HPV-058 study. Subjects with contraindications related to blood draw such as blood disorders and anticoagulants use.

Ages Eligible for Study
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Minimum Age: 17 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: HPV Group<br>Healthy Chinese female subjects, including and above 17 years of age at the time of enrollment, who received all three doses of the Cervarix vaccine in the HPV-058 (NCT00996125) primary study. | Procedure: Blood sampling for antibody determination<br>* In order to assess the persistence of immune responses seven to eight years after the last vaccine dose against HPV-16/18, a blood sample ( 5 mL) will be taken from all the subjects, at Day 1.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Number of Seropositive Subjects for Anti-HPV-16 Antibodies at Day 1 in HPV-093 (NCT03355820) Study | A seropositive subject is defined as a subject whose antibody concentration is equal to or above the cut-off value of 19 Enzyme Linked Immunosorbent Assay units per milliliter (EL.U/mL). | At Day 1 in HPV-093 (NCT03355820) study (i.e. 7 to 8 years after completion of the vaccination schedule in HPV-058 [NCT00996125] study) | 
| Number of Seropositive Subjects for Anti-HPV-18 Antibodies at Day 1 in HPV-093 (NCT03355820) Study | A seropositive subject is defined as a subject whose antibody concentration is equal to or above the cut-off value of 18 EL.U/mL. | At Day 1 in HPV-093 (NCT03355820) study (i.e. 7 to 8 years after completion of the vaccination schedule in HPV-058 [NCT00996125] study) | 
| Anti-HPV-16 Antibody Concentrations at Day 1 in HPV-093 (NCT03355820) Study | Anti-HPV-16 antibody concentrations are presented as Geometric Mean Concentrations (GMCs), expressed in EL.U/mL. | At Day 1 in HPV-093 (NCT03355820) study (i.e. 7 to 8 years after completion of the vaccination schedule in HPV-058 [NCT00996125] study) | 
| Anti-HPV-18 Antibody Concentrations at Day 1 in HPV-093 (NCT03355820) Study | Anti-HPV-18 antibody concentrations are presented as GMCs, expressed in EL.U/mL. | At Day 1 in HPV-093 (NCT03355820) study (i.e. 7 to 8 years after completion of the vaccination schedule in HPV-058 [NCT00996125] study) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Number of Seropositive Subjects for Anti-HPV-16 Antibodies at Day 1 in HPV-093 (NCT03355820) and at Year 6 in HPV-039 (NCT00779766) Studies | A seropositive subject is defined as a subject whose antibody concentration is equal to or above the cut-off value of 19 EL.U/mL. The number of seropositive subjects at Day 1 in the present study was compared with the number of seropositive subjects from the immunogenicity subset in HPV-039 (NCT00779766) study at Year 6. Data corresponding to Day 1 time point of the present study can also be found in the primary outcome measure. Data at Year 6 in subjects from the immunogenicity subset in HPV-039 study can be found in the respective NCT record NCT00779766 (please refer to Outcome measure 38, Row ≥19 EL.U/mL, sero-, [Month 72] and Row ≥19 EL.U/mL, sero+, [Month 72]). | At Day 1 in HPV-093 (NCT03355820) study (i.e. 7 to 8 years after completion of the vaccination schedule in HPV-058 [NCT00996125] study) and at Year 6 in HPV-039 (NCT00779766) study | 
| Number of Seropositive Subjects for Anti-HPV-18 Antibodies at Day 1 in HPV-093 (NCT03355820) and at Year 6 in HPV-039 (NCT00779766) Studies | A seropositive subject is defined as a subject whose antibody concentration is equal to or above the cut-off value of 18 EL.U/mL. The number of seropositive subjects at Day 1 in the present study was compared with the number of seropositive subjects from the immunogenicity subset in HPV-039 (NCT00779766) study at Year 6. Data corresponding to Day 1 time point of the present study can also be found in the primary outcome measure. Data at Year 6 in subjects from the immunogenicity subset in HPV-039 study can be found in the respective NCT record NCT00779766 (please refer to Outcome measure 39, Row ≥ 18 EL.U/mL, sero- [Month 72] and Row ≥ 18 EL.U/mL, sero+ [Month 72]). | At Day 1 in HPV-093 (NCT03355820) study (i.e. 7 to 8 years after completion of the vaccination schedule in HPV-058 [NCT00996125] study) and at Year 6 in HPV-039 (NCT00779766) study | 
| Concentration of Antibodies Against HPV-16 at Day 1 in HPV-093 (NCT03355820) and at Year 6 in HPV-039 (NCT00779766) Studies | Anti-HPV-16 antibody concentrations are presented as Geometric Mean Concentrations (GMCs), expressed in EL.U/mL. Anti-HPV-16 antibody concentrations at Day 1 in the present study were compared with the anti-HPV-16 antibody concentrations obtained as per the analysis performed on the immunogenicity subset in HPV-039 (NCT00779766) study at Year 6. Data corresponding to Day 1 time point of the present study can also be found in the primary outcome measure. Data at Year 6 in subjects from the immunogenicity subset in HPV-039 study can be found in the respective NCT record NCT00779766 (please refer to Outcome measure 40, Row HPV-16, sero-, [Month 72] and Row HPV-16, sero+, [Month 72]). | At Day 1 in HPV-093 (NCT03355820) study (i.e. 7 to 8 years after completion of the vaccination schedule in HPV-058 [NCT00996125] study) and at Year 6 in HPV-039 (NCT00779766) study | 
| Concentration of Antibodies Against HPV-18 at Day 1 in HPV-093 (NCT03355820) and at Year 6 in HPV-039 (NCT00779766) Studies | Anti-HPV-18 antibody concentrations are presented as Geometric Mean Concentrations (GMCs), expressed in EL.U/mL. Anti-HPV-18 antibody concentrations at Day 1 in the present study were compared with the anti-HPV-18 antibody concentrations obtained as per the analysis performed on the immunogenicity subset in HPV-039 (NCT00779766) study at Year 6. Data corresponding to Day 1 time point of the present study can also be found in the primary outcome measure. Data at Year 6 in subjects from the immunogenicity subset in HPV-039 study can be found in the respective NCT record NCT00779766 (please refer to Outcome measure 40, Row HPV-18, sero-, [Month 72] and Row HPV-18, sero+, [Month 72]). | At Day 1 in HPV-093 (NCT03355820) study (i.e. 7 to 8 years after completion of the vaccination schedule in HPV-058 [NCT00996125] study) and at Year 6 in HPV-039 (NCT00779766) study | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Immune response, Cervarix, Persistence, Chinese, Human papillomavirus