Plain-English translation of NCT06570889 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Read our Asthma research guide →Phase 3 — Testing in thousands of people, comparing the treatment against what doctors currently use. This is the last big step before approval.
The VICTORY study is testing whether vitamin D3 (a higher dose than what's typically recommended) taken during pregnancy can help prevent asthma and wheezing in young children. Researchers will enroll 2,000 pregnant women and follow their children for up to 6 years to see if the medication reduces the risk of developing asthma and other conditions like respiratory infections, eczema, and allergies.
Some research suggests that vitamin D during pregnancy may help prevent asthma and other allergic conditions in children, but large studies are needed to confirm this. This trial aims to find out whether this medication could offer an affordable, safe way to protect children's respiratory health from birth.
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If you join this study, you'll take either a daily vitamin D capsule or a matching placebo capsule from around 6 months into your pregnancy until one week after delivery. Your blood will be tested once at the start, and your child will be followed for up to 6 years with regular check-ins where you'll report any symptoms, illnesses, or health concerns your child experiences.
AI-generated summary from trial data · Jun 3, 2026 · Not medical advice
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