Trastuzumab Recruiting Phase 1 / 2 Trials for Malignant Solid Tumours / Tumors, Solid / Cancer, Breast / Solid Tumors and Hematologic Malignancy / NSCLC (Non-small Cell Lung Carcinoma) / Neoplasms, Endometrial / Lung Cancers / Lung Cancer Non-Small Cell Cancer (NSCLC) / MPN / Endometrial Cancers / Multiple Myeloma (MM) / MPN (Myeloproliferative Neoplasms) / Cholangiocarcinomas / Malignant Neoplasm of Stomach / Stomach Neoplasms / UC (Urothelial Cancer) / Transitional Cell Carcinoma Treatment