# Vaginal Progesterone in Twins With Short Cervix

> **NCT01812239** · PHASE2,PHASE3 · WITHDRAWN · sponsor: **Obstetrix Medical Group**

## Conditions studied

- Premature Birth

## Interventions

- **DRUG:** Vaginal Progesterone gel.
- **PROCEDURE:** fetal fibronectin swab.
- **DRUG:** Placebo gel

## Key facts

- **NCT ID:** NCT01812239
- **Lead sponsor:** Obstetrix Medical Group
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2,PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2014-03
- **Primary completion:** 2017-08
- **Final completion:** 2018-08
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** inability to retain study drug with comparable placebo.
- **Last updated:** 2014-12-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01812239

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01812239, "Vaginal Progesterone in Twins With Short Cervix". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT01812239. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*