Clinical trial Recruiting at 1 site Observational

Monitoring outcomes of women and their babies after MenQuadfi® vaccination during pregnancy

Official title: The MenQuadfi® Pregnancy Registry: A Surveillance Registry to Assess the Safety of MenQuadfi® Among Exposed Pregnant Women and Their Offspring

Run by Sanofi · NCT04843111 · Data updated 2026-11-12

This study is looking at the health of pregnant women and their babies after they receive the MenQuadfi® vaccine to see if there are any effects from the vaccination.

More Meningococcal Infection trials

Quick facts

Study typeObservational
SexAll
Enrollment50 (estimated)
SponsorSanofi
Industry-sponsored
Locations1 site (Swiftwater, Pennsylvania)
StatusRecruiting
StartedMarch 5, 2021
Main results expectedMay 18, 2028
Study endsMay 18, 2028
Registry record updatedDecember 1, 2025
Trial IDNCT04843111 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are pregnant women in the US who have received the MenQuadfi® vaccine during their pregnancy or within 30 days prior to their last menstrual period.

Probably not a fit

Patients who have not been vaccinated with MenQuadfi® or who are not pregnant will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational program aims to collect and analyze data on maternal, obstetrical, pregnancy, and neonatal outcomes for women who received the MenQuadfi® vaccine during pregnancy or within 30 days before their last menstrual period. The study will create a prospective pregnancy registry, encouraging early registration of pregnancies exposed to the vaccine. Participants will be followed throughout their pregnancy and their offspring will be monitored up to one year of age to assess any potential impacts of the vaccination.

Why it matters

Potential benefit: If successful, this study could provide valuable insights into the safety and effects of MenQuadfi® vaccination during pregnancy, potentially guiding future vaccination recommendations.

How similar studies have gone: While this study is observational and focuses on post-marketing surveillance, similar approaches in monitoring vaccine safety during pregnancy have shown success in other contexts.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

The eligible population will include pregnant women and their offspring residing in the US and its territories who are exposed to MenQuadfi® during their pregnancy or within 30 days prior to their LMP, for whom the exposure is reported to the pregnancy registry.

Reports of MenQuadfi® pregnancy exposure must contain the following information:

* Sufficient evidence to confirm that vaccination occurred during the pregnancy or in the 30 days preceding the LMP;
* Vaccine name (brand or generic) is provided (i.e., MenQuadfi®, Meningococcal vaccine, MenACWY conjugate vaccine), or not specified (eg, meningococcal vaccine from an unknown manufacturer).

Exclusion Criteria:

Only post-marketing spontaneous case reports will be included; reports from clinical trials will not be part of the registry.

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Where it's running

  • Pennsylvania Locations
    Swiftwater, Pennsylvania, United States
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.