PD-L1 Expression in Advanced Osteosarcoma
Clinical trial NCT03582527 · UNKNOWN
Trial details
- NCT number
- NCT03582527
- Sponsor
- Peking University People's Hospital
- Status
- UNKNOWN
- Study type
- OBSERVATIONAL
- Start date
- 2018-06-01
- Primary completion
- 2019-12-31
- Enrollment
- 50
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