# Diphenhydramine as an Adjunct to Moderate Sedation for Procedural First Trimester Abortions

> **NCT07542730** · PHASE4 · NOT_YET_RECRUITING · sponsor: **University of Rochester** · enrollment: 98 (estimated)

## Conditions studied

- Pain
- Abortion
- Anxiety

## Interventions

- **DRUG:** Diphenhydramine
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT07542730
- **Lead sponsor:** University of Rochester
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** NOT_YET_RECRUITING
- **Start date:** 2026-05
- **Primary completion:** 2027-02
- **Final completion:** 2027-02
- **Target enrollment:** 98 (ESTIMATED)
- **Last updated:** 2026-04-21


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07542730

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07542730, "Diphenhydramine as an Adjunct to Moderate Sedation for Procedural First Trimester Abortions". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT07542730. Licensed CC0.

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