322 Efficacy and safety of GX-I7 plus pembrolizumab for heavily pretreated patients with metastatic triple negative breast cancer: The Phase 1b/2 KEYNOTE-899 Study
322 Efficacy and safety of GX-I7 plus pembrolizumab for heavily pretreated patients with metastatic triple negative breast cancer: The Phase 1b/2 KEYNOTE-899 Study