NCT03147898

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

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
90

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Apr 2017

Geographic Reach
2 countries

2 active sites

Status
completed

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

Completed
26 days until next milestone

First Submitted

Initial submission to the registry

May 8, 2017

Completed
2 days until next milestone

First Posted

Study publicly available on registry

May 10, 2017

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 9, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 9, 2018

Completed
Last Updated

April 25, 2022

Status Verified

April 1, 2022

Enrollment Period

1.2 years

First QC Date

May 8, 2017

Last Update Submit

April 21, 2022

Conditions

Keywords

Whooping coughPertussis

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

Age15 Months - 59 Months
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)
Sampling MethodProbability Sample
Study Population

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

Study Sites (2)

Investigational Site

Mexico City, Mexico

Location

Investigational Site

Panama City, Panama

Location

Related Links

Biospecimen

Retention: SAMPLES WITHOUT DNA

blood draw

MeSH Terms

Conditions

Whooping Cough

Condition Hierarchy (Ancestors)

Bordetella InfectionsGram-Negative Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfectionsRespiratory Tract InfectionsRespiratory Tract Diseases

Study Officials

  • Medical Officer

    Sanofi Pasteur Inc.

    STUDY DIRECTOR

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

Locations