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A Phase 1 Study to Evaluate Chimeric Antigen Receptor (CAR) T cells Targeting TAG72 in Patients with Recurrent Epithelial Ovarian Cancer

Award Number: R01CA266874
ORGANIZATION: NATIONAL CANCER INSTITUTE
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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PROJECT SUMMARY Patients with recurrent epithelial ovarian cancer (EOC) have a poor prognosis with a post-relapse median survival of approximately 30 months and limited therapeutic options, thus presenting a fundamental unmet medical need. Progress in immunotherapy across a broad range of tumor types provides hope that immunological approaches may improve outcomes for patients with EOC. Particularly, a type of immunotherapy called chimeric antigen receptor (CAR) T cell therapy retrains the immune system to target cancers by recognizing specific cancer markers. EOC presents several challenges to effective CAR T cell immunotherapy, including poor tumor site infiltration, activation, inadequate function and persistence of these T cells within the harsh peritoneal tumor microenvironment. Additionally, there are a lack of effective CAR T cell targets on the surface of advanced EOC tumor cells. Our goal is to develop effective therapies against metastatic EOC, with a specific focus on regional delivery of CAR T cell therapies to treat peritoneal metastasis. TAG72 is highly over- expressed in EOC and other solid tumors with little or no expression in normal tissues, making it an ideal target for CAR T cell therapy. Our team at City of Hope has developed and completed laboratory testing of a TAG72- targeting CAR T cell therapy. Our preclinical data also supports superior anti-tumor activity when TAG72 CAR T cells are administered regionally by intraperitoneal delivery versus systemically by intravenous delivery, likely due to direct and immediate antigen CAR T cell access to tumor cells. The hypothesis is that regionally- administered TAG72-CAR T cells will be safe and mediate anti-tumor effects, which will be assessed in the following specific aims: 1) Evaluate safety and feasibility of regional intraperitoneal delivery of TAG72-CAR T cells in patients with advanced EOC in a phase 1 clinical trial; 2) Assess CAR T cell-mediated immune landscape changes that may indicate therapeutic response or resistance; and 3) investigate pathways of tumor resistance and CAR T cell-induced tumor evolution. Our program has incorporated an innovative use of pre-conditioning regimens to our solid tumor CAR T cell therapies, regional routes of CAR T cell administration, and a fully- optimized TAG72-CAR construct. These features aim to improve the potency and selectivity of targeting TAG72+ tumors while potentially minimizing immune responses that limit persistence and/or function of TAG72-CAR T cells. This approach is significant in that it will expand our therapeutic portfolio for EOC and other solid tumors.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2024 ( Subtotal = $668,834 )
2024	2024	BECKMAN RESEARCH INSTITUTE OF THE CITY OF HOPE	1500 DUARTE RD	DUARTE	CA	91010	LOS ANGELES	USA	Cancer Treatment Research	000	3	6/26/2024	NON-COMPETING CONTINUATION	$668,834
														Subtotal = $668,834

Issue Date FY: 2023 ( Subtotal = $689,955 )
2023	2023	BECKMAN RESEARCH INSTITUTE OF THE CITY OF HOPE	1500 DUARTE RD	DUARTE	CA	91010	LOS ANGELES	USA	Cancer Treatment Research	000	2	8/25/2023	NON-COMPETING CONTINUATION	$689,955
														Subtotal = $689,955

Issue Date FY: 2022 ( Subtotal = $723,036 )
2022	2022	BECKMAN RESEARCH INSTITUTE OF THE CITY OF HOPE	1500 DUARTE RD	DUARTE	CA	91010	LOS ANGELES	USA	Cancer Treatment Research	000	1	8/19/2022	NEW	$723,036
														Subtotal = $723,036

Grand Total All Awards = $2,081,825

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A Phase 1 Study to Evaluate Chimeric Antigen Receptor (CAR) T cells Targeting TAG72 in Patients with Recurrent Epithelial Ovarian Cancer

Award Number: R01CA266874

ORGANIZATION: NATIONAL CANCER INSTITUTE

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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