Persistency Study After Hib-CRM (Cross-Reacting Material)197 or Hib-TT (Tetanus Toxoid) Vaccines in Chinese Children
Meningitis, Epiglottitis, Pneumonia, Arthritis Caused by Haemophilus Influenzae Type b
About this trial
This is an interventional prevention trial for Meningitis, Epiglottitis, Pneumonia, Arthritis Caused by Haemophilus Influenzae Type b focused on measuring Haemophilus influenzae type b, persistency, children, CRM197, anti-PRP antibody
Eligibility Criteria
Inclusion Criteria:
- Children previously enrolled in V37_07E1 study and who received the appropriate vaccination.
- Children whose parent(s) or legal guardian(s) had given written consent after the nature of the study was explained according to local regulatory requirements.
Exclusion Criteria:
- Any confirmed or suspected current immunosuppressive or immunodeficient condition since the end of V37_07E1 study, based on medical history and physical examination (no laboratory testing required).
Treatment with corticosteroids or other immunosuppressive/immunostimulant drugs as defined below:
i) chronic use of oral and parenteral immunosuppressants (>= 15 days of use) or other immune-modifying drugs within 60 days prior to the blood sampling (short term usage of topical, inhaled and/or intranasal corticosteroids were allowed) ii) receipt of immunostimulants within 60 days prior to Visit 1
- Administration of immunoglobulins and/or any blood products up to 3 months before enrollment.
- Use of any investigational or non-registered product (drug or vaccine) within 30 days preceding the blood sampling.
- Any condition, which, in the opinion of the investigator, might be a contraindication to the execution of the blood draw.
Sites / Locations
- DingXing Center for Disease Control and Prevention
Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
Hib CRM197
Hib TT
Subjects treated with 3 doses of CRM 197 -conjugate Haemophilus influenzae type b vaccine (study vaccine): 2 doses given one month apart during study V37_07 (NCT01044316) and a booster dose of the same vaccine six months after, during study V37_07E1 (NCT01226953). No vaccine was administered during this trial
Subjects treated with 3 doses of Tetanus Toxoid-conjugate Haemophilus influenzae type b vaccine (comparator vaccine): 2 doses given one month apart during study V37_07 (NCT01044316) and a booster dose of the same vaccine six months after, during study V37_07E1 (NCT01226953). No vaccine was administered during this trial