# Vaginal Versus Intramuscular Progesterone for the Prevention of Recurrent Preterm Birth

> **NCT02913495** · PHASE4 · COMPLETED · sponsor: **Thomas Jefferson University** · enrollment: 210 (actual)

## Conditions studied

- Premature Birth

## Interventions

- **DRUG:** Vaginal Progesterone
- **DRUG:** Intramuscular Progesterone (17 alpha hydroxprogesterone caproate)

## Key facts

- **NCT ID:** NCT02913495
- **Lead sponsor:** Thomas Jefferson University
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2016-09
- **Primary completion:** 2021-08
- **Final completion:** 2021-09
- **Target enrollment:** 210 (ACTUAL)
- **Last updated:** 2026-02-24

## Collaborators

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## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02913495

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02913495, "Vaginal Versus Intramuscular Progesterone for the Prevention of Recurrent Preterm Birth". Retrieved via AI Analytics 2026-06-04 from https://api.ai-analytics.org/clinical/NCT02913495. Licensed CC0.

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