Vaccination Against COVID-19 in Pregnant and Lactating Women in Belgium

NCT ID: NCT05618548

Last Updated: 2022-11-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

110 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-03-01

Study Completion Date

2023-06-30

Brief Summary

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This study will investigate whether pregnant and lactating women can develop similar protective immunity as non-pregnant women against Coronavirus Infectious Disease 2019 (COVID-19) upon vaccination, without safety issues. Immunogenicity and safety of all currently licensed COVID-19 vaccines that are administered to pregnant and lactating women in Belgium will be studied.

Detailed Description

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This project will compare vaccination of pregnant women with age-matched non-pregnant women and women vaccinated in the postpartum period during lactation. The primary objectives are to assess the immune responses (humoral immunity, cellular immunity, mucosal immunity) and safety after either administration of the Comirnaty COVID-19 vaccine (mRNA, Pfizer BioNtech), the COVID-19 Moderna vaccine (mRNA, Moderna), the COVID-19 vaccine Vaxzevria (Viral Vector, Astra Zeneca) or any other vaccine that will become available for the Belgian population.

Conditions

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Covid19

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Cohort A: Pregnant women vaccinated with a mRNA COVID-19 vaccine

Pregnant women who will be offered a mRNA COVID-19 vaccine (brand will depend on the vaccine available at the time of inclusion). Gestational age at vaccination will depend on the timing when the vaccine is offered to the specific participant, this being subject to the national recommendations for vaccination of priority groups.

COVID-19 vaccine

Intervention Type BIOLOGICAL

COVID-19 vaccine available at the moment of vaccination: either the Comirnaty vaccine (mRNA, Pfizer BioNtech), the Moderna vaccine (mRNA, Moderna), the Vaxzevria vaccine (Viral Vector, Astra Zeneca).

Cohort B: Pregnant women vaccinated with an adenoviral vector COVID-19 vaccine

Pregnant women who will be offered an adenoviral vector COVID-19 vaccine (Astra Zeneca). Gestational age at vaccination will depend on the timing when the vaccine is offered to the specific participant, this being subject to the national recommendations for vaccination of priority groups.

COVID-19 vaccine

Intervention Type BIOLOGICAL

COVID-19 vaccine available at the moment of vaccination: either the Comirnaty vaccine (mRNA, Pfizer BioNtech), the Moderna vaccine (mRNA, Moderna), the Vaxzevria vaccine (Viral Vector, Astra Zeneca).

Cohort C: Postpartum lactating women vaccinated with a mRNA COVID-19 vaccine

Non-pregnant women during lactation (postpartum) will be offered a mRNA COVID-19 vaccine (brand will depend on the vaccine available at the time of inclusion). Duration of lactation at vaccination will depend on the timing when the vaccine is offered to the specific participant, this being subject to the national recommendations for vaccination of priority groups.

COVID-19 vaccine

Intervention Type BIOLOGICAL

COVID-19 vaccine available at the moment of vaccination: either the Comirnaty vaccine (mRNA, Pfizer BioNtech), the Moderna vaccine (mRNA, Moderna), the Vaxzevria vaccine (Viral Vector, Astra Zeneca).

Cohort D: Postpartum lactating women vaccinated with an adenoviral vector COVID-19 vaccine (N=40)

Non-pregnant women during lactation (postpartum) will be offered an adenviral vector COVID-19 vaccine (brand will depend on the vaccine available at the time of inclusion). Duration of lactation at vaccination will depend on the timing when the vaccine is offered to the specific participant, this being subject to the national recommendations for vaccination of priority groups.

COVID-19 vaccine

Intervention Type BIOLOGICAL

COVID-19 vaccine available at the moment of vaccination: either the Comirnaty vaccine (mRNA, Pfizer BioNtech), the Moderna vaccine (mRNA, Moderna), the Vaxzevria vaccine (Viral Vector, Astra Zeneca).

Interventions

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COVID-19 vaccine

COVID-19 vaccine available at the moment of vaccination: either the Comirnaty vaccine (mRNA, Pfizer BioNtech), the Moderna vaccine (mRNA, Moderna), the Vaxzevria vaccine (Viral Vector, Astra Zeneca).

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Female population older than 18 years.
* Ability to provide informed consent.
* Willing to be vaccinated with a COVID-19 vaccine.
* Intend to be available for follow-up visits through one year postvaccination.
* Influenza and pertussis vaccination during pregnancy (as per Belgian recommendations) is allowed.

Exclusion Criteria

* Serious underlying immunological condition (e.g. immunosuppressive disease or therapy, human immunodeficiency virus (HIV) infection…).
* Systemic treatment with immune suppressive medication, including chronic steroid use of \> 10 mg prednisone or equivalent.
* Anything in the opinion of the investigator that would prevent volunteers from completing the study or put the volunteer at risk.
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Vrije Universiteit Brussel

OTHER

Sponsor Role collaborator

Sciensano

OTHER_GOV

Sponsor Role collaborator

Université Libre de Bruxelles

OTHER

Sponsor Role collaborator

Universiteit Antwerpen

OTHER

Sponsor Role lead

Responsible Party

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Elke Leuridan, MD, PhD

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Elke Leuridan, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Universiteit Antwerpen

Kirsten Maertens, PhD

Role: PRINCIPAL_INVESTIGATOR

Universiteit Antwerpen

Larissa De Brabandere, MD

Role: PRINCIPAL_INVESTIGATOR

Universiteit Antwerpen

Locations

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Centre for the Evaluation of Vaccination

Antwerp, , Belgium

Site Status

Countries

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Belgium

References

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Munoz FM, Avila Aguero ML, Cutland CL, Dinleyici EC, Eckert LO, Giles ML, Holder B, Jones CE, Kampmann B, Kollman TR, Levy O, Marchant A, Maertens K, Marshall HS, Sadarangani M, Ulloa Gutierrez R, Van Damme P, Heath PT. Fostering Collaboration Across Nations: Report of the 6th International Neonatal and Maternal Immunization Symposium (INMIS), Costa Rica, 2024. Pediatr Infect Dis J. 2025 Feb 1;44(2S):S2-S8. doi: 10.1097/INF.0000000000004700. Epub 2025 Feb 14. No abstract available.

Reference Type DERIVED
PMID: 39951063 (View on PubMed)

Other Identifiers

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cev004

Identifier Type: -

Identifier Source: org_study_id

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