Biomaterial Database

Phase II Trial of Pembrolizumab and Anti-CD3 x Anti-HER2 Bispecific Antibody-Armed Activated T Cells in Metastatic Castration-Resistant Prostate Cancer. 2023

Ulka N Vaishampayan, and Archana Thakur, and Wei Chen, and Abhinav Deol, and Meera Patel, and Kimberlee Dobson, and Brenda Dickow, and Dana Schalk, and Amy Schienschang, and Sarah Whitaker, and Amanda Polend, and Joseph A Fontana, and Elisabeth I Heath, and Lawrence G Lum

Karmanos Cancer Center, Wayne State University, Detroit, Michigan.

A phase II study was conducted to evaluate the safety and efficacy of the combination of HER2 bispecific antibody (HER2Bi)-armed activated T cells (HER2 BAT) and programmed death 1 inhibitor, pembrolizumab. Patients with metastatic castration-resistant prostate cancer (mCRPC) with 0 to 1 performance status and normal liver, kidney, and marrow function, pre- or post-docetaxel chemotherapy were eligible. Primary endpoint was 6-month progression-free survival (PFS). Peripheral blood mononuclear cells were obtained by a single apheresis, shipped to University of Virginia, activated with OKT3 and expanded for 14 days in IL2, harvested, and armed with HER2Bi and cryopreserved. HER2 BATs were infused twice weekly for 4 weeks and pembrolizumab was administered every 21 days for a maximum duration of 6 months starting 1 to 3 weeks prior to HER2 BATs infusion. Fourteen patients were enrolled with a median age of 69 (range 57-82 years) and median PSA of 143.4 (range 8.2-4210 ng/dL). Two patients had peritoneal metastases, 1 had lymph node (LN) only metastases and 11 had bone metastases of which 7 had bone and LN metastases. All were pretreated with androgen receptor axis targeted agents and 7 (50%) had prior docetaxel chemotherapy. The toxicities were grade1-2 infusion reactions with fever, chills, headaches, nausea and/or myalgias. Primary endpoint of 6 month PFS was achieved in 5 of 14 patients (38.5%; 95% confidence interval, 19.5%-76.5%). Median PFS was 5 months and median survival was 31.6 months. The safety and promising efficacy makes this combination worthy of future investigation in mCRPC.

UI	MeSH Term	Description	Entries
D007963	Leukocytes, Mononuclear	Mature LYMPHOCYTES and MONOCYTES transported by the blood to the body's extravascular space. They are morphologically distinguishable from mature granulocytic leukocytes by their large, non-lobed nuclei and lack of coarse, heavily stained cytoplasmic granules.	Mononuclear Leukocyte,Mononuclear Leukocytes,PBMC Peripheral Blood Mononuclear Cells,Peripheral Blood Human Mononuclear Cells,Peripheral Blood Mononuclear Cell,Peripheral Blood Mononuclear Cells,Leukocyte, Mononuclear
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000077143	Docetaxel	A semisynthetic analog of PACLITAXEL used in the treatment of locally advanced or metastatic BREAST NEOPLASMS and NON-SMALL CELL LUNG CANCER.	Docetaxel Anhydrous,Docetaxel Hydrate,Docetaxel Trihydrate,Docetaxol,N-Debenzoyl-N-tert-butoxycarbonyl-10-deacetyltaxol,NSC 628503,RP 56976,RP-56976,Taxoltere Metro,Taxotere,N Debenzoyl N tert butoxycarbonyl 10 deacetyltaxol,RP56976
D000368	Aged	A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.	Elderly
D000369	Aged, 80 and over	Persons 80 years of age and older.	Oldest Old
D000971	Antineoplastic Combined Chemotherapy Protocols	The use of two or more chemicals simultaneously or sequentially in the drug therapy of neoplasms. The drugs need not be in the same dosage form.	Anticancer Drug Combinations,Antineoplastic Agents, Combined,Antineoplastic Chemotherapy Protocols,Antineoplastic Drug Combinations,Cancer Chemotherapy Protocols,Chemotherapy Protocols, Antineoplastic,Drug Combinations, Antineoplastic,Antineoplastic Combined Chemotherapy Regimens,Combined Antineoplastic Agents,Agent, Combined Antineoplastic,Agents, Combined Antineoplastic,Anticancer Drug Combination,Antineoplastic Agent, Combined,Antineoplastic Chemotherapy Protocol,Antineoplastic Drug Combination,Cancer Chemotherapy Protocol,Chemotherapy Protocol, Antineoplastic,Chemotherapy Protocol, Cancer,Chemotherapy Protocols, Cancer,Combinations, Antineoplastic Drug,Combined Antineoplastic Agent,Drug Combination, Anticancer,Drug Combination, Antineoplastic,Drug Combinations, Anticancer,Protocol, Antineoplastic Chemotherapy,Protocol, Cancer Chemotherapy,Protocols, Antineoplastic Chemotherapy,Protocols, Cancer Chemotherapy
D013601	T-Lymphocytes	Lymphocytes responsible for cell-mediated immunity. Two types have been identified - cytotoxic (T-LYMPHOCYTES, CYTOTOXIC) and helper T-lymphocytes (T-LYMPHOCYTES, HELPER-INDUCER). They are formed when lymphocytes circulate through the THYMUS GLAND and differentiate to thymocytes. When exposed to an antigen, they divide rapidly and produce large numbers of new T cells sensitized to that antigen.	T Cell,T Lymphocyte,T-Cells,Thymus-Dependent Lymphocytes,Cell, T,Cells, T,Lymphocyte, T,Lymphocyte, Thymus-Dependent,Lymphocytes, T,Lymphocytes, Thymus-Dependent,T Cells,T Lymphocytes,T-Cell,T-Lymphocyte,Thymus Dependent Lymphocytes,Thymus-Dependent Lymphocyte
D064129	Prostatic Neoplasms, Castration-Resistant	Tumors or cancer of the PROSTATE which can grow in the presence of low or residual amount of androgen hormones such as TESTOSTERONE.	Androgen-Independent Prostatic Cancer,Androgen-Independent Prostatic Neoplasms,Androgen-Insensitive Prostatic Cancer,Androgen-Insensitive Prostatic Neoplasms,Androgen-Resistant Prostatic Cancer,Androgen-Resistant Prostatic Neoplasms,Castration-Resistant Prostatic Cancer,Castration-Resistant Prostatic Neoplasms,Hormone Refractory Prostatic Cancer,Hormone Refractory Prostatic Neoplasms,Prostatic Cancer, Androgen-Independent,Prostatic Cancer, Androgen-Insensitive,Prostatic Cancer, Androgen-Resistant,Prostatic Cancer, Castration-Resistant,Prostatic Cancer, Hormone Refractory,Prostatic Neoplasms, Androgen-Independent,Prostatic Neoplasms, Androgen-Insensitive,Prostatic Neoplasms, Androgen-Resistant,Prostatic Neoplasms, Hormone Refractory,Androgen Independent Prostatic Cancer,Androgen Independent Prostatic Neoplasms,Androgen Insensitive Prostatic Cancer,Androgen Insensitive Prostatic Neoplasms,Androgen Resistant Prostatic Cancer,Androgen Resistant Prostatic Neoplasms,Androgen-Independent Prostatic Cancers,Androgen-Independent Prostatic Neoplasm,Androgen-Insensitive Prostatic Cancers,Androgen-Insensitive Prostatic Neoplasm,Androgen-Resistant Prostatic Cancers,Androgen-Resistant Prostatic Neoplasm,Cancer, Androgen-Independent Prostatic,Cancer, Androgen-Insensitive Prostatic,Cancer, Androgen-Resistant Prostatic,Cancer, Castration-Resistant Prostatic,Cancers, Androgen-Independent Prostatic,Cancers, Androgen-Insensitive Prostatic,Cancers, Androgen-Resistant Prostatic,Cancers, Castration-Resistant Prostatic,Castration Resistant Prostatic Cancer,Castration Resistant Prostatic Neoplasms,Castration-Resistant Prostatic Cancers,Castration-Resistant Prostatic Neoplasm,Neoplasm, Androgen-Independent Prostatic,Neoplasm, Androgen-Insensitive Prostatic,Neoplasm, Androgen-Resistant Prostatic,Neoplasm, Castration-Resistant Prostatic,Neoplasms, Androgen-Independent Prostatic,Neoplasms, Androgen-Insensitive Prostatic,Neoplasms, Androgen-Resistant Prostatic,Neoplasms, Castration-Resistant Prostatic,Prostatic Cancer, Androgen Independent,Prostatic Cancer, Androgen Insensitive,Prostatic Cancer, Androgen Resistant,Prostatic Cancer, Castration Resistant,Prostatic Cancers, Androgen-Independent,Prostatic Cancers, Androgen-Insensitive,Prostatic Cancers, Androgen-Resistant,Prostatic Cancers, Castration-Resistant,Prostatic Neoplasm, Androgen-Independent,Prostatic Neoplasm, Androgen-Insensitive,Prostatic Neoplasm, Androgen-Resistant,Prostatic Neoplasm, Castration-Resistant,Prostatic Neoplasms, Androgen Independent,Prostatic Neoplasms, Androgen Insensitive,Prostatic Neoplasms, Androgen Resistant,Prostatic Neoplasms, Castration Resistant