Could a common allergy drug help prevent C-Sections?
NCT ID NCT06702670
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a single IV dose of diphenhydramine, an antihistamine, can prevent labor from stalling and reduce the need for C-sections in first-time mothers. Researchers will enroll 200 women in active labor with cervical edema. The goal is to see if the drug helps the cervix fully dilate and leads to more vaginal deliveries.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Diphenhydramine (an antihistamine) given as a single IV dose
- What this could lead to
- If it works, this could offer a simple, low-cost way to help first-time mothers avoid prolonged labor and the need for a C-section.
- What could go wrong
- This is a mid-stage trial with only 200 participants, so results may not apply to all women. The drug may not improve outcomes and could cause side effects like drowsiness.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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The University of Texas Health Science Center at Houston
RECRUITINGHouston, Texas, 77030, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact Phone: •••-•••-•••• Email: •••••@•••••
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