Plain-English translation of NCT04705116 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
C-VIPER is an international registry that follows pregnant women who received COVID-19 vaccines and compares their pregnancy outcomes and babies' health to pregnant women who were not vaccinated. Researchers are collecting this information because when the vaccines first became available, there wasn't enough data about their safety during pregnancy.
COVID-19 vaccines are being used in pregnant populations, but when the study started, there was limited scientific evidence about whether they are safe for pregnant women and developing babies. This registry is designed to gather real-world safety information.
If you join, you would share information about your pregnancy, your COVID-19 vaccination history (if applicable), and your baby's health after birth. The study follows you and your baby for the first 12 months of life, collecting information through questionnaires and medical records. You would not receive any treatment or medication as part of this study—you are simply sharing your health information to help researchers understand vaccine safety.
AI-generated summary from trial data · Jun 9, 2026 · Not medical advice
United States
Enrollment target
~1,184 participants
Started
June 2021
Primary completion
April 2026
Age range
18 Years – 50 Years
Sex
Female only
Last updated on clinicaltrials.gov in July 2026.