| NCT ID | Title | Phase | Status | Enrollment | Velocity | Design | Start | Completion | Last Updated | Sites | Countries |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NCT03355820 | 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 | PHASE3 | COMPLETED | 228 | — | — | Feb 28, 2018 | Jun 29, 2018 | Nov 19, 2020 | 1 | China |
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).
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.
Anti-HPV-16 antibody concentrations are presented as Geometric Mean Concentrations (GMCs), expressed in EL.U/mL.
Anti-HPV-18 antibody concentrations are presented as GMCs, expressed in EL.U/mL.
| Arm | Type | Description |
|---|---|---|
| HPV Group | EXPERIMENTAL | 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. |
| Name | Type | Description |
|---|---|---|
| Blood sampling for antibody determination | PROCEDURE | 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. |
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 a...