# Endocrine Therapy Base on 21-gene RS

> **NCT07311122** · — · NOT_YET_RECRUITING · sponsor: **Gangnam Severance Hospital** · enrollment: 4000 (estimated)

## Conditions studied

- Breast Cancer

## Interventions

- **DIAGNOSTIC_TEST:** Oncotype DX

## Key facts

- **NCT ID:** NCT07311122
- **Lead sponsor:** Gangnam Severance Hospital
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** NOT_YET_RECRUITING
- **Start date:** 2026-01-01
- **Primary completion:** 2027-12-31
- **Final completion:** 2028-12-31
- **Target enrollment:** 4000 (ESTIMATED)
- **Last updated:** 2025-12-30


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07311122

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07311122, "Endocrine Therapy Base on 21-gene RS". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT07311122. Licensed CC0.

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