Persistency Study After Hib-CRM (Cross-Reacting Material)197 or Hib-TT (Tetanus Toxoid) Vaccines in Chinese Children
A Phase IIIb, Controlled, Open Label, Single-Center, Persistency, Extension Study in Chinese Children After a 2+1 Dose Series of Either CRM197-Conjugate Haemophilus Influenzae Type b Vaccine or Tetanus Toxoid-Conjugate Haemophilus Influenzae Type b Vaccine
1 other identifier
interventional
426
1 country
1
Brief Summary
Evaluate the persistency of immune response against Haemophilus influenzae type b by assessing anti-PRP antibody levels in children vaccinated with either Hib-CRM197 or Hib-TT booster vaccine approximately 4 years before.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Nov 2014
Shorter than P25 for phase_3
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 13, 2014
CompletedFirst Posted
Study publicly available on registry
May 15, 2014
CompletedStudy Start
First participant enrolled
November 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2015
CompletedResults Posted
Study results publicly available
November 9, 2015
CompletedNovember 9, 2015
October 1, 2015
1 month
May 13, 2014
May 19, 2015
October 13, 2015
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Geometric Mean Anti-PRP (Polyribosyl Ribitol Phosphate) Concentrations at Day 1 (4 Years Post Booster Dose Administered in Study V37_07E1)
Immunogenicity was measured as geometric mean of Anti- PRP Concentrations, approximately 4 years after booster vaccination with either Hib-CRM197 or Hib-TT in children participating in previous V37\_07E1 trial.
At Day 1 (4 years post booster dose administered in study V37_07E1)
Secondary Outcomes (1)
Percentages of Subjects With Anti-PRP Concentrations ≥1.0 μg/mL and ≥0.15 μg/mL at Day 1 (4 Years Post Booster Dose Administered in Study V37_07E1)
At Day 1 (4 years post booster dose administered in study V37_07E1)
Study Arms (2)
Hib CRM197
EXPERIMENTALSubjects 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
Hib TT
ACTIVE COMPARATORSubjects 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
Interventions
Eligibility Criteria
You may qualify if:
- 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.
You may not qualify if:
- 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.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
DingXing Center for Disease Control and Prevention
Dingxing, Hebei, 050021, China
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Posting Director
- Organization
- Novartis Vaccines and Diagnostics Srl
Study Officials
- STUDY CHAIR
Novartis Vaccines
Novartis Vaccines
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 13, 2014
First Posted
May 15, 2014
Study Start
November 1, 2014
Primary Completion
December 1, 2014
Study Completion
January 1, 2015
Last Updated
November 9, 2015
Results First Posted
November 9, 2015
Record last verified: 2015-10