Response to Influenza Vaccine During Pregnancy (FLU-PG)

  • participants needed
  • sponsor
    Stanford University
Updated on 5 February 2023
trivalent influenza vaccine
quadrivalent inactivated influenza vaccine
Accepts healthy volunteers


This is one project of a larger ongoing study related to the immune system's response to the flu virus. This study is designed to investigate the immune response to vaccination in pregnancy.


This is a Phase IV study of licensed influenza vaccines with up to 50 pregnant female volunteers, 18-49 years of age. Investigator intends to collect blood from pregnant women and then from the same women a year later when they are not pregnant after routine seasonal influenza vaccination. By studying the blood of immunized pregnant women and in these same women after pregnancy, the investigator will gain a better understanding of the immune response to vaccination in pregnancy and after pregnancy.

Each volunteer will participate for approximately 4 weeks including enrollment, vaccination, and completion of sample collection in 2 consecutive flu seasons. The Study has a total of 6 visits over 2 Flu seasons.

Study procedures:

Year One:

First Visit: Procedures during this visit are: Informed consent process, enrollment, study assessments, 20 ml blood draw, and vaccination.

2nd and 3rd visits: 20 ml blood will be obtained

Year Two:

First Visit: Study assessments, 20 ml blood draw, and vaccination. 2nd and 3rd visits: 20 ml blood will be obtained

Condition Influenza
Treatment Quadrivalent inactivated influenza vaccine (IIV)
Clinical Study IdentifierNCT03888989
SponsorStanford University
Last Modified on5 February 2023

Similar trials to consider


Browse trials for

Not finding what you're looking for?

Every year hundreds of thousands of volunteers step forward to participate in research. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.

Sign up as volunteer

user name

Added by • 



Reply by • Private

Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ipsa vel nobis alias. Quae eveniet velit voluptate quo doloribus maxime et dicta in sequi, corporis quod. Ea, dolor eius? Dolore, vel!

  The passcode will expire in None.

No annotations made yet

Add a private note
  • abc Select a piece of text from the left.
  • Add notes visible only to you.
  • Send it to people through a passcode protected link.
Add a private note