The Safety of Boostrix Following Routine Immunization of Pregnant Women

NCT ID: NCT03463577

Last Updated: 2022-05-18

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

65783 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-04-13

Study Completion Date

2020-08-04

Brief Summary

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The purpose of this study was to assess the safety of Boostrix administered on or after the first day of the 27th week of pregnancy by conducting a post-marketing study that provided safety information to the public and healthcare providers. This was one of the largest cohorts of pregnant women vaccinated with Boostrix in the U.S. Through partnership between Kaiser Permanente Southern California (KPSC) and the sponsor, GlaxoSmithKline (GSK), information about the safety of maternal vaccination with Boostrix and maternal and infant adverse events (AEs) in a community setting was gained.

Detailed Description

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Conditions

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Whooping Cough

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

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Exposed cohort women-on or after 1st day of 27th week of pregnancy

This group consisted of pregnant women who received the Tdap vaccine (Boostrix) on or after the 1st day of the 27th week of pregnancy during the period January 1, 2018 to January 31, 2019 who were not vaccinated with any other Tdap vaccine at any other time during the pregnancy.

Safety assessment following routine immunization with Boostrix

Intervention Type OTHER

Subject-level data was collected for pregnant women and their infants through the Electronic Health Records.

Unexposed historical cohort women

This group consisted of women matched to Exposed cohort women-on or after 1st day of 27th week of pregnancy group and pregnant at least one day during the historical period between January 1, 2012-December 31, 2014 and did not receive any Tdap vaccine during the pregnancy.

Safety assessment following routine immunization with Boostrix

Intervention Type OTHER

Subject-level data was collected for pregnant women and their infants through the Electronic Health Records.

Exposed cohort women-before 1st day of 27th week of pregnancy

This group consisted of pregnant women who received the Tdap vaccine (Boostrix) before the 1st day of the 27th week of pregnancy during the period January 1, 2018-January 31, 2019 who were not vaccinated with any other Tdap vaccine at any other time during the pregnancy.

Safety assessment following routine immunization with Boostrix

Intervention Type OTHER

Subject-level data was collected for pregnant women and their infants through the Electronic Health Records.

Exposed cohort infants-on or after 1st day of 27th week of pregnancy

This group consisted of infants whose mothers belong to Exposed cohort women-on or after 1st day of 27th week of pregnancy group.

Safety assessment following routine immunization with Boostrix

Intervention Type OTHER

Subject-level data was collected for pregnant women and their infants through the Electronic Health Records.

Unexposed historical cohort infants

This group consisted of infants whose mothers belong to the Unexposed historical cohort women group.

Safety assessment following routine immunization with Boostrix

Intervention Type OTHER

Subject-level data was collected for pregnant women and their infants through the Electronic Health Records.

Exposed cohort infants-before 1st day of 27th week of pregnancy

This group consisted of infants whose mothers belong to the Exposed cohort women-before 1st day of 27th week of pregnancy group.

Safety assessment following routine immunization with Boostrix

Intervention Type OTHER

Subject-level data was collected for pregnant women and their infants through the Electronic Health Records.

Interventions

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Safety assessment following routine immunization with Boostrix

Subject-level data was collected for pregnant women and their infants through the Electronic Health Records.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Pregnant women with prenatal care and continuous membership (allowing up to a 31-day gap) at KPSC between the 1st day of the 27th week of pregnancy and the index (vaccination) date.
* Exposed cohort (from the 27th week of gestation): Pregnant women vaccinated with Boostrix on or after the 1st day of the 27th week of pregnancy; who were not vaccinated with any other Tdap vaccine at any other time during the pregnancy in scope of this study.
* Unexposed cohort: Women matched to the exposed cohort and pregnant sometime during the approximate estimated period between January 1, 2012-December 31, 2014 and did not receive any Tdap vaccine during the pregnancy in scope of this study.


* Live born
* Born in KPSC hospitals

Note: Pregnant women vaccinated with Boostrix during pregnancy before the 27th week of gestation, with membership at the date of vaccination, and who were not vaccinated with any other Tdap vaccine at any other time during the pregnancy in scope of this study will be part of a descriptive analysis (secondary objective).
Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Kaiser Permanente

OTHER

Sponsor Role collaborator

GlaxoSmithKline

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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GSK Clinical Trials

Role: STUDY_DIRECTOR

GlaxoSmithKline

Locations

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GSK Investigational Site

Pasadena, California, United States

Site Status

Countries

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United States

References

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Florea A, Sy LS, Ackerson BK, Qian L, Luo Y, Becerra-Culqui T, Lee GS, Tian Y, Zheng C, Bathala R, Tartof SY, Campora L, Ceregido MA, Kuznetsova A, Poirrier JE, Rosillon D, Valdes L, Cheuvart B, Mesaros N, Meyer N, Guignard A, Tseng HF. Investigating Tetanus, Diphtheria, Acellular Pertussis Vaccination During Pregnancy and Risk of Congenital Anomalies. Infect Dis Ther. 2023 Feb;12(2):411-423. doi: 10.1007/s40121-022-00731-8. Epub 2022 Dec 15.

Reference Type DERIVED
PMID: 36520325 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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207221

Identifier Type: -

Identifier Source: org_study_id

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