# Post Operative Continuous Active Combination Sex Steroids for the Prevention of Recurrent Endometrioma Formation

> **NCT00999479** · NA · WITHDRAWN · sponsor: **University of Oklahoma**

## Conditions studied

- Endometrioma

## Interventions

- **DRUG:** Norethindrone acetate and ethinyl estradiol tablets, USP
- **DRUG:** ferrous fumarate (placebo) tablets

## Key facts

- **NCT ID:** NCT00999479
- **Lead sponsor:** University of Oklahoma
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2009-10
- **Primary completion:** 2011-10
- **Final completion:** 2011-10
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Poor enrollment
- **Last updated:** 2013-12-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00999479

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00999479, "Post Operative Continuous Active Combination Sex Steroids for the Prevention of Recurrent Endometrioma Formation". Retrieved via AI Analytics 2026-09-15 from https://api.ai-analytics.org/clinical/NCT00999479. Licensed CC0.

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