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Clinical Trial Summary

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).


Clinical Trial 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 or 68Ga-PSMA-11 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. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03822871
Study type Interventional
Source Cancer Targeted Technology
Contact Phu Lam
Phone 1 (415) 353-8337
Email Phu.Lam@ucsf.edu
Status Recruiting
Phase Phase 1
Start date April 1, 2019
Completion date December 31, 2021

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