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Spots Global Cancer Trial Database for A Phase 2 Trial for Men With Metastatic Prostatic Adenocarcinoma

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Trial Identification

Brief Title: A Phase 2 Trial for Men With Metastatic Prostatic Adenocarcinoma

Official Title: A Phase 2 Trial of Cryosurgical Freezing and Intratumoral Combination Immunotherapy in Men With Metastatic Prostatic Adenocarcinoma

Study ID: NCT04090775

Study Description

Brief Summary: This study seeks to estimate the occurrence of adverse events related to the study treatment (Cryosurgical freezing and Intratumoral Combination Immunotherapy), as well as determine the potential efficacy.

Detailed Description: Cryosurgical freezing will release intact antigens to prime the immune system. The study treatment immunotherapeutic drugs (PD-1 inhibitor monoclonal antibody nivolumab and anti-CTLA-4 monoclonal antibody ipilimumab, and cyclophosphamide) will then be sequentially injected directly into the cancer immediately following cryosurgical freezing. Oral low-dose cyclophosphamide will also be administered subsequently. It is speculated that neoantigens released from the cryoablated necrotic cancer will be available in the vicinity of the cryosurgical freezing field immediately following the procedure. Immature dendritic cells attracted to the injection site will internalize neoantigens to become activated to recognize cancer-specific antigenic proteins. The activated dendritic cells will recruit killer T-cells to the injection site to attack cancer cells, and then migrate through the lymphatic system to sites of metastases, targeting cancer-specific neoantigens and recruiting more killer T-lymphocytes to destroy other cancer cells harboring the precise antigenic epitopes (abscopal (bystander) effect). In this way, dendritic cells are capable of initiating cell-mediated systemic immune response in combination with cytotoxic killer T-cells. Regulatory T lymphocytes, which have been implicated in dampening or halting cell-mediated, antigen-specific immune responses, will be selectively depleted by anti-CTLA-4 monoclonal antibodies and low-dose cyclophosphamide. Intratumoral injection of the immunotherapeutic medications assists in stimulating and harnessing the local and systemic immune response. Oral cyclophosphamide prolongs the immune response. Using this combination of therapies, referred to as AbscopalRx1001, it is thought that a clinically significant systemic anti-cancer immune response might be elicited. Intratumoral injection of drugs will likely offer fewer side effects than systemic therapy.

Keywords

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: MALE

Healthy Volunteers: No

Locations

Antelope Valley Urology & Incontinence, Lancaster, California, United States

Ascension Providence Rochester Hospital, Rochester, Michigan, United States

Contact Details

Name: David G Bostwick, M.D.,M.B.A.

Affiliation: Rampart Health

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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