# A Long-term Extension Study of TAK-385 in the Treatment of Endometriosis

> **NCT01452685** · PHASE2 · COMPLETED · sponsor: **Takeda** · enrollment: 397 (actual)

## Conditions studied

- Endometriosis

## Interventions

- **DRUG:** Placebo
- **DRUG:** TAK-385
- **DRUG:** TAK-385
- **DRUG:** TAK-385
- **DRUG:** Leuprorelin acetate

## Key facts

- **NCT ID:** NCT01452685
- **Lead sponsor:** Takeda
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2012-03
- **Primary completion:** 2013-12
- **Final completion:** 2013-12
- **Target enrollment:** 397 (ACTUAL)
- **Last updated:** 2014-05-08


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01452685

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01452685, "A Long-term Extension Study of TAK-385 in the Treatment of Endometriosis". Retrieved via AI Analytics 2026-06-23 from https://api.ai-analytics.org/clinical/NCT01452685. Licensed CC0.

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