| NCT Number | NCT06928818 |
| Lead Sponsor | Seoul National University Hospital |
| Conditions | Cancer of Breast, Trastuzumab Emtansine, Trastuzumab Deruxtecan |
| Enrollment | 100 participants |
| Start Date | 2025-02-26 |
| Primary Completion | 2028-09-30 (estimated) |
| Study Completion | 2029-09-30 (estimated) |
| Updated on ClinicalTrials.gov | 2026-04-23 |