Provider Information

What is the purpose of this study?

The purpose of this study is to examine the effect of the COVID-19 vaccine on the menstrual cycle. Anecdotal evidence has suggested that some people who menstruate experienced unexpected changes in their menstrual cycle, including spotting and heavier cycles. We are interested in recruiting participants who menstruate and are willing to receive the vaccine (first dose) in the near future.

Why should I refer my patients to participate in your study?

Menstrual health is considered an indicator of general well-being, yet it is understudied and menstrual changes have traditionally excluded in clinical trials. The clinical trials of the Pfizer, Moderna, and Johnson and Johnson vaccines did not check for menstrual irregularities. Thus, little is known about the effect of the COVID-19 vaccine on menstrual health.

The results of this study can offer people a better insight into the possible side effects, or lack thereof, of COVID-19 vaccine on the menstrual cycle. This will ultimately reduce vaccine hesitancy among this large population and improve vaccine enrollment rates.

What does the study involve?

This study involves recording 1 menstrual cycle prior to receiving the vaccine and 2-3 menstrual cycles after receiving the vaccine using a simple and validated menstrual diary. Participants will also be asked about potential confounders that can affect the menstrual cycle such as stress, starting or stopping hormonal therapy, and weight changes.

There is no cost to participants. No in-person study visits are required, and the entire study can be completed from home. Participants will be paid $75 for participating.