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Clinical Trial Summary

The purpose of this study is to assess the efficacy, tolerability, safety, pharmacokinetic (PK) and dosimetry of 177Lu-PSMA-617, in participants with progressive prostate-specific membrane antigen (PSMA)-positive metastatic castration-resistant prostate cancer (mCRPC) in Japan. Furthermore, the safety, PK and dosimetry of 68Ga-PSMA-11 (PSMA imaging agent) are assessed in the same study.

Clinical Trial Description

This study is an open label, multicenter, single arm, phase II study to evaluate the efficacy, tolerability, safety, PK and dosimetry of 177Lu-PSMA-617 in participants with progressive PSMA-positive mCRPC in Japan. Furthermore, the safety, PK, and dosimetry of 68Ga-PSMA-11 (PSMA imaging agent) are also evaluated in this study. This study consists of two populations: 1. Post-taxane population: The post-taxane population will include men with PSMA-positive mCRPC who received at least one ARDT (for example enzalutamide, abiraterone etc.) and were previously treated with at least one, but no more than two taxane regimens. Participants treated with only 1 prior taxane regimen are eligible if the participant's physician deems the participants unsuitable to receive a second taxane regimen. 2. Pre-taxane population; The pre-taxane population will include men with PSMA-positive mCRPC who were previously treated with one ARDT as last treatment and have not been exposed to a taxane-containing regimen in the CRPC or HSPC settings and for whom it is considered appropriate to delay taxane-based chemotherapy. This is a 3-part study: Part 1 (a safety run-in part), Part 2 (post-taxane part) and Part 3 (pre-taxane part). 1. Part 1 (safety run-in part) will confirm the tolerability and safety of recommended regimen, once every 6-weeks, 7.4 GBq of the 177Lu-PSMA-617. Minimum of 3 participants as 177Lu-PSMA-617 tolerability evaluable participants will be enrolled. Dosimetry and PK assessments of 177Lu-PSMA-617 are mandatory for participants enrolled in this part. 2. Part 2 (post-taxane part) will evaluate the efficacy, safety, PK and dosimetry of 177Lu-PSMA-617 plus BSC/BSoC, as well as safety, PK, and dosimetry of 68Ga-PSMA-11 in post-taxane participants with PSMA-positive mCRPC. 3. Part 3 (pre-taxane part) will evaluate the efficacy, safety, PK and dosimetry of 177Lu-PSMA-617, as well as safety, PK, and dosimetry of 68Ga-PSMA-11 in taxane naïve participants with PSMA-positive mCRPC Approximately total 35 participants are planned for screening, and total 28 participants will be enrolled in the treatment part (Part 1, Part 2 and Part 3). This study will consist of 3 periods: screening period, treatment period, and long term follow up. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT05114746
Study type Interventional
Source Novartis
Contact Novartis Pharmaceuticals
Phone +81337978748
Email [email protected]
Status Not yet recruiting
Phase Phase 2
Start date January 1, 2022
Completion date April 1, 2026

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