Observational Study Describing the Immune Profile Induced By Pertussis Vaccines
Characterization of Humoral and Cell-Mediated Immune Responses Following a Booster Dose of Pertussis Vaccine
2 other identifiers
observational
90
2 countries
2
Brief Summary
This is an observational study designed to describe the immune profile of toddlers and preschoolers with acellular priming after receiving a booster dose of pertussis vaccine.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Apr 2017
2 active sites
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
Study Start
First participant enrolled
April 12, 2017
CompletedFirst Submitted
Initial submission to the registry
May 8, 2017
CompletedFirst Posted
Study publicly available on registry
May 10, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 9, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
July 9, 2018
CompletedApril 25, 2022
April 1, 2022
1.2 years
May 8, 2017
April 21, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Anti Pertussis antibody concentrations pre and post vaccination
The change in antibody concentrations will be measured from pre to post vaccination
Day 30 post vaccination
Change in magnitude of T-cell responses to pertussis-containing combination vaccines over time
The change in cell mediated immune responses will be evaluated from pre to post vaccination
Day 30 post vaccination
Study Arms (4)
Group 1: Toddlers
Non-intervention observational study. Toddlers will receive wP-containing combination vaccine as part of the national immunization schedule
Group 2: Toddlers
Non-intervention observational study. Toddlers will receive an aP-containing combination vaccine as part of the national immunization schedule.
Group 3: Preschooler
Non-intervention observational study. Preschoolers will receive a wP-containing combination vaccine as part of the national immunization schedule.
Group 4: Preschooler
Non-intervention observational study. Preschoolers will receive an aP-containing combination vaccine as part of the national immunization schedule.
Eligibility Criteria
Healthy subjects aged 15 to 59 months
You may qualify if:
- An individual must fulfill all of the following criteria in order to be eligible for study enrollment:
- Toddler Cohort:
- Aged 15 to 24 months on the day of (V01)
- Has received 3 doses of a licensed pertussis-containing vaccine for a priming series during infancy in accordance with the recommendations of the NIP or his / her primary care physician
- Has written documentation (e.g., immunization record, physician's certificate, vaccination unit registry) available to verify the receipt of 3 doses of a licensed pertussis-containing infant vaccines as per national immunization schedule
- ICF has been signed and dated by the subject's parent(s) / legally acceptable representative(s) and, if required, an independent witness, in accordance with local regulations
- Planned receipt of routine pertussis booster vaccine, preferably, on same date as, and no more than 2 days following, V01
- Participant and parent / legally acceptable representative are able to attend all scheduled visits and to comply with all study procedures
- Preschooler Cohort:
- Aged 48 to 59 months on the date of V01
- Has received 4 doses of pertussis-containing combination vaccines as per national immunization schedule
You may not qualify if:
- An individual fulfilling any of the following criteria is to be excluded from study enrollment:
- Participation at the time of study enrollment or planned participation during the present study period in another clinical study investigating a vaccine, drug, medical device, or medical procedure
- Receipt of any vaccine in the 4 weeks preceding the study or planned receipt of any vaccine (other than a booster pertussis vaccine) between V01 and V03a
- Receipt of immunoglobulins, blood, or blood-derived products in the past 3 months
- Known or suspected congenital or acquired immunodeficiency, or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy, within the preceding 6 months, or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks) within the preceding 3 months
- History of clinically- or laboratory-confirmed pertussis as per the WHO recommended case definition
- Chronic illness that, in the opinion of the Investigator, is at a stage where it might interfere with study conduct or completion
- Moderate or severe acute illness/infection (in the opinion of the investigator) or febrile illness (temperature ≥ 38.0°C) at physical examination on V01 of the study. A prospective participant should not be included in the study until the condition has resolved or the febrile event has subsided.
- Identified as a natural or adopted child of the Investigator or an employee with direct involvement in the proposed study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Sanofilead
Study Sites (2)
Investigational Site
Mexico City, Mexico
Investigational Site
Panama City, Panama
Related Links
Biospecimen
blood draw
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Medical Officer
Sanofi Pasteur Inc.
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 8, 2017
First Posted
May 10, 2017
Study Start
April 12, 2017
Primary Completion
July 9, 2018
Study Completion
July 9, 2018
Last Updated
April 25, 2022
Record last verified: 2022-04
Data Sharing
- IPD Sharing
- Will share
Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org