# Comparing IM vs. Vaginal Progesterone for Pre-term Birth

> **NCT00579553** · NA · COMPLETED · sponsor: **University of Oklahoma** · enrollment: 174 (actual)

## Conditions studied

- Infant, Premature
- Premature Birth

## Interventions

- **DRUG:** Intramuscular Progesterone
- **DRUG:** Vaginal Progesterone

## Key facts

- **NCT ID:** NCT00579553
- **Lead sponsor:** University of Oklahoma
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2006-10
- **Primary completion:** 2011-05
- **Final completion:** 2011-05
- **Target enrollment:** 174 (ACTUAL)
- **Last updated:** 2021-05-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00579553

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00579553, "Comparing IM vs. Vaginal Progesterone for Pre-term Birth". Retrieved via AI Analytics 2026-08-20 from https://api.ai-analytics.org/clinical/NCT00579553. Licensed CC0.

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