# cfDNA in Diagnosis and Differential Diagnosis of Ovarian Endometriosis

> **NCT04220710** · — · UNKNOWN · sponsor: **Peking Union Medical College Hospital** · enrollment: 390 (estimated)

## Conditions studied

- Circulating Free DNA

## Interventions

- **DIAGNOSTIC_TEST:** DNA extraction and methylation detection

## Key facts

- **NCT ID:** NCT04220710
- **Lead sponsor:** Peking Union Medical College Hospital
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2019-08-20
- **Primary completion:** 2020-02-20
- **Final completion:** 2020-08-20
- **Target enrollment:** 390 (ESTIMATED)
- **Last updated:** 2020-01-07


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04220710

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04220710, "cfDNA in Diagnosis and Differential Diagnosis of Ovarian Endometriosis". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT04220710. Licensed CC0.

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