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Brief Title: A Trial to Find Out if REGN4336 is Safe and How Well it Works Alone and in Combination With Cemiplimab or REGN5678 for Adult Participants With Advanced Prostate Cancer
Official Title: Phase 1/2 Study of REGN4336 (a PSMAxCD3 Bispecific Antibody) Administered Alone or in Combination With Cemiplimab or REGN5678 (a PSMAxCD28 Bispecific Antibody) in Patients With Metastatic Castration-Resistant Prostate Cancer
Study ID: NCT05125016
Brief Summary: This study is researching an investigational drug called REGN4336. Some participants may receive additional investigational drugs in combination with REGN4336. These additional drugs include REGN5678, cemiplimab and sarilumab. The main purpose of this study is to determine the safety, tolerability (how the body reacts to the drug) and effectiveness of REGN4336 alone, in combination with cemiplimab, or in combination with REGN5678. REGN4336, cemiplimab and REGN5678 are a type of treatment for cancer called immunotherapy,and are intended to activate T-cells to attack cancer cells. This study has 2 parts. The purpose of Part 1 is to determine a safe dose of REGN4336 when given alone or when given in combination with cemiplimab or REGN5678. The purpose of Part 2 is to use the REGN4336 dose(s) determined in Part 1 to further test how well REGN4336 works to shrink tumors either when given alone or in combination with cemiplimab or REGN5678. This study is looking at several other research questions, including: * What side effects may happen from taking REGN4336 alone, in combination with cemiplimab, or in combination with REGN5678? * How much REGN4336 is in the blood at different times when it is given alone, in combination with cemiplimab, or in combination with REGN5678? * Does the body make antibodies against the study drugs (REGN4336, cemiplimab, or REGN5678)?
Detailed Description:
Minimum Age: 18 Years
Eligible Ages: ADULT, OLDER_ADULT
Sex: MALE
Healthy Volunteers: No
Stanford Cancer Center, Palo Alto, California, United States
Norton Cancer Institute, Louisville, Kentucky, United States
University of Maryland, Greenebaum Comprehensive Cancer Center, Baltimore, Maryland, United States
Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey, United States
Roswell Park Cancer Institute, Buffalo, New York, United States
James Cancer Hospital and Solove Research Institute at The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, United States
University of Pennsylvania Perelman Center for Advanced Medicine, Philadelphia, Pennsylvania, United States
Thomas Jefferson University, Sidney Kimmel Center, Clinical Research Organization, Philadelphia, Pennsylvania, United States
Fox Chase Cancer Center, Philadelphia, Pennsylvania, United States
MD Anderson Cancer Center, Houston, Texas, United States
Froedtert and Medical College of Wisconsin, Milwaukee, Wisconsin, United States
Name: Clinical Trial Management
Affiliation: Regeneron Pharmaceuticals
Role: STUDY_DIRECTOR