COVID-19 vaccination effects on pregnant individuals and their newborns

Pregnant and Lactating Individuals & Newborns COVID-19 Vaccination (PLAN-V): Prospective Cohort Study

Observational Ottawa Hospital Research Institute · NCT05115617

This study is testing how safe and effective COVID-19 vaccines are for pregnant people and their babies to help guide health recommendations.

Quick facts

Study typeObservational
Enrollment150 (estimated)
SexFemale
SponsorOttawa Hospital Research Institute Academic / other
Locations7 sites (Hamilton, Ontario and 6 other locations)
Trial IDNCT05115617 on ClinicalTrials.gov

What this trial studies

The PLAN-V Study is a prospective, longitudinal study based in Ontario that focuses on pregnant individuals who have received the COVID-19 vaccine. It aims to collect extensive biosamples and data from these individuals and their infants throughout the antenatal, delivery, and postpartum periods. The study's objectives include evaluating the immunogenicity and safety of COVID-19 vaccines in pregnant individuals, comparing immune responses between vaccinated and non-vaccinated groups, and assessing health outcomes for both mothers and newborns. This research is crucial for informing public health recommendations and supporting evidence-based decision-making for families and healthcare providers.

Who should consider this trial

Good fit: Ideal candidates for this study are pregnant individuals aged 16 years and older who are at least 7 weeks pregnant and planning to receive a COVID-19 vaccine.

Not a fit: Patients who are fully vaccinated against COVID-19 or have major fetal concerns will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide critical insights into the safety and efficacy of COVID-19 vaccinations for pregnant individuals and their infants.

How similar studies have performed: Other studies have shown success in evaluating vaccine safety and immunogenicity in pregnant populations, making this approach both relevant and necessary.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Women/Individuals ≥ 16 years of age who are ≥7 0/7 weeks' gestation on the day of enrollment
* Capacity to provide informed consent and to comprehend and comply with the study requirements
* Planning to deliver at a participating site hospital
* Planning to receive or have previously received one-dose of a Health Canada approved COVID-19 vaccine (any product, any number of doses) during the current pregnancy

Exclusion Criteria:

* Cases with known major fetal concerns
* Women/Individuals who are fully vaccinated against COVID-19
* Women/Individuals who are pregnant due to surrogacy, or planning to give their child up for adoption
* Women/Individuals with a non-viable pregnancy (e.g., ectopic)

Where this trial is running

Hamilton, Ontario and 6 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions SARS-CoV2 InfectionCovid19Vaccine ReactionPregnancy RelatedImmunogenicity
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.