First Patient Treated in Clarity's Cu-64/Cu-67 SAR-bisPSMA Theranostic Prostate Cancer Trial

San Francisco, CA ( -- Clarity Pharmaceuticals (ASX: CU6) ("Clarity" or the "Company"), an Australian-based clinical stage radiopharmaceutical company developing next-generation products to address the growing need in oncology, is pleased to announce that the first US patient has been dosed with 64Cu SAR-bisPSMA in the dosimetry phase of the SECuRE clinical trial (NCT04868604)1 investigating Targeted Copper Theranostics (TCTs) in patients with metastatic castrate resistant prostate cancer (mCRPC) at the Urology Cancer Center and GU Research Network in Omaha, Nebraska.

Clarity's Executive Chairman, Dr. Alan Taylor, commented, "We are very excited to have treated our first US patient in the SECuRE trial for mCRPC using our optimised PSMA agent, 64/67Cu SAR-bisPSMA, and look forward to recruiting additional patients and opening all seven clinical sites selected for this trial in the US. We believe the central manufacture, logistical and treatment advantages of TCTs using copper-64 and copper-67 in large patient populations such as prostate cancer will benefit both clinicians and patients."
The SECuRE trial is a Phase I/IIa theranostic trial for identification and treatment of PSMA-expressing mCRPC using TCT. 64Cu SAR-bisPSMA is used to image and select patients for 67Cu SAR-bisPSMA therapy. The initial dosimetry phase utilises 64Cu SAR-bisPSMA to determine biodistribution and dosimetry over multiple time points. The entire trial is a multi-centre, single arm, dose escalation study with a cohort expansion planned for up to 44 patients in the US. The aim of this trial is to determine the safety and efficacy of 67Cu-SAR-bisPSMA as a therapy.

Dr. Luke Nordquist, CEO, Urologic Medical Oncologist at the Urology Cancer Center and GU Research Network in Omaha, Nebraska, who treated the first patient with 64Cu SAR-bisPSMA in the trial, commented on this milestone, "64/67Cu SAR-bisPSMA products hold great promise of improving prostate cancer diagnosis and treatment and have the potential to provide significant supply benefits in comparison to current products in the market. We look forward to working together with Clarity to explore these benefits and utilise them to improve the lives of men with this insidious disease."

Dr. Taylor said: "The prostate cancer market is a key focus for Clarity. The news of the SECuRE trial recruitment milestone comes shortly after treating our first patient in the PROPELLER trial, a diagnostic 64Cu SAR-bisPSMA clinical trial in patients with confirmed prostate cancer (NCT04839367).2 We are excited to now have two clinical trials in prostate cancer actively recruiting and treating patients and to build on the compelling results from our therapeutic and diagnostic preclinical studies. We look forward to progressing these trials and getting closer to achieving our ultimate goal of developing better treatments for children and adults with cancer."


  1. Identifier: NCT04868604 
  2. Identifier: NCT04839367 

Source: "First Patient Treated In Clarity's Cu-64/Cu-67 SAR-Bispsma Theranostic Prostate Cancer Trial | Biospace". 2021. Biospace.