Status and phase
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About
The purpose of the study is to evaluate the immunogenicity, safety and reactogenicity of a dTpa (Boostrix™ vaccine) booster dose given 10 years after the previous vaccination with dTpa in GSK 263855/029 study. Only subjects who were part of the primary study will be invited to participate in this study.This protocol posting deals with objectives & outcome measures of the booster phase. The objectives & outcome measures of the primary phase are presented in a separate study (see reference).
Full description
All subjects will receive a booster dose of the vaccine that they received in their primary study. Subjects who received the investigational vaccine formulation, will receive Boostrix™ in the present study.
Enrollment
Sex
Ages
Volunteers
Inclusion criteria
Subjects who the investigator believes that they can and will comply with the requirements of the protocol.
Male or female subjects who have received Boostrix™, Boostrix™-US formulation or the investigational vaccine formulation in the study 263855/029.
Written informed consent obtained from the subject. Additional criteria to be checked before the booster vaccination.
Healthy subjects as established by medical history and clinical examination.
Female subjects of non-childbearing potential may receive the booster vaccine.
Female subjects of childbearing potential may receive the booster vaccine, if the subject:
Exclusion criteria
Exclusion criteria to be checked at study entry:
Previous booster vaccination against diphtheria, tetanus, or pertussis since the dose received in the study 263855/029.
History of diphtheria, tetanus, or laboratory confirmed pertussis disease.
Any confirmed or suspected immunosuppressive or immunodeficiency condition, based on medical history and physical examination.
History of any reaction or hypersensitivity likely to be exacerbated by any component of the vaccine.
Occurrence of transient thrombocytopenia or neurological complications following an earlier immunisation against diphtheria and/or tetanus.
Occurrence of any of the following adverse event after a previous administration of a DTP vaccine :
Acute or chronic, clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory screening tests.
Additional exclusion criteria to be checked for subjects before the booster vaccination administration:
Use of any investigational or non-registered product other than the study vaccine(s) within 30 days preceding the booster dose of study vaccine, or planned use during the study period.
Chronic administration of immunosuppressants or other immune-modifying drugs within six months prior to the booster dose.
Administration of a vaccine not foreseen by the study protocol within 30 days prior to booster vaccination, or planned administration during the active study period.
Concurrently participating in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational product.
Administration of immunoglobulins and/or any blood products within the three months preceding the booster dose or planned administration during the study period.
Acute disease and/or fever at the time of enrolment.
Pregnant or lactating female.
Female planning to become pregnant or planning to discontinue contraceptive precautions.
Primary purpose
Allocation
Interventional model
Masking
180 participants in 3 patient groups
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Data sourced from clinicaltrials.gov
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