Clin2
NCT03972657Possibly a fitRecruiting

Testing a new prostate and kidney cancer drug with immunotherapy

Metastatic Castration-Resistant Prostate Cancer (mCRPC)Clear Cell Renal Cell Carcinoma (ccRCC)

Treatments studied

Part of Cancer, Kidney & urinary, Women’s health & pregnancy clinical trials.

This early trial tests whether REGN5678 (nezastomig) is safe and how well it works, either by itself or with an immunotherapy drug (cemiplimab). It targets adults with metastatic castration-resistant prostate cancer and certain metastatic kidney cancers that have already been treated.

Summary written for real people, not researchers, by Clin2.

Phase
Phase 1/Phase 2
Enrollment
345 people
Ages
18 years and older
Study type
Interventional

Who can take part

  • You have metastatic prostate cancer (without “pure small-cell” prostate cancer) or metastatic clear-cell kidney cancer
  • For prostate cancer: your PSA is at least 4, and it has gotten worse within the last 6 months
  • You’ve had at least two prior cancer treatments that fit the trial rules (including specific hormone-blocking drugs for prostate cancer)
  • For prostate cancer: you must have had PSMA-targeted radiotherapy (like 177Lu-PSMA-617) before joining (per the protocol)
  • For clear-cell kidney cancer: your tumor must be clear-cell, measurable by scan, and you must have had prior PD-1/PD-L1 immunotherapy plus other treatment
  • You can’t have had certain recent treatments or immune-related steroid use, and you must not have significant uncontrolled autoimmune or brain/nerve conditions

View the official record on ClinicalTrials.gov

Quick eligibility check

Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.

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