Last updated on May 2020

A Trial of CTT1403 for Metastatic Castration Resistant Prostate Cancer


Brief description of study

The purpose of this study is to find the highest dose level of study drug, CTT1403, that can be safely administered to patients with metastatic castration resistant prostate cancer (mCRPC).

Detailed Study Description

This is a Phase 1, first-in-human dose escalation/dose expansion study evaluating escalating doses of CTT1403 in patients with PSMA-avid mCRPC with progressive disease on at least one androgen signaling inhibitor, followed by a dose expansion to further evaluate the safety, tolerability, efficacy and biological activity of CTT1403. CTT1403 is a PSMA-targeted 177Lu-labeled radiotherapy being developed for prostate cancer with a unique PSMA binding scaffold and an albumin binding moiety to extend circulation half-life. The PSMA binding scaffold is shared with CTT1057, a PSMA-specific PET diagnostic imaging agent shown in Phase 1 clinical trials to be specifically taken up by PSMA+ tumor. PSMA PET imaging by CTT1057 will be used diagnostically to select patients with PSMA-avid disease for treatment. The purpose of this study is to identify the dose limiting toxicity and recommended phase 2 dose of CTT1403. Eligible participants with demonstrated therapeutic benefit will be offered a second dose of study drug.

Clinical Study Identifier: NCT03822871

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University of California, San Francisco

San Francisco, CA United States
9.73miles
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Recruitment Status: Open


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