Clarity Pharmaceuticals to Begin Phase 3 Trial for New PSMA PET Agent for Prostate Cancer
The prospective multicenter trial, which is slated to begin patient recruitment in late 2023, will reportedly assess the ability of 64Cu SAR-bisPSMA to diagnose prostate cancer within pelvic lymph nodes.
Following a positive end of phase meeting with the Food and Drug Administration (FDA), Clarity Pharmaceuticals will proceed to a phase 3 prospective multicenter trial for further assessment of the prostate-specific membrane antigen (PSMA) positron emission tomography (PET) diagnostic agent 64Cu SAR-bisPSMA to diagnose prostate cancer.
Clarity Pharmaceuticals said the goal of the prospective, open-label, non-randomized trial is to evaluate 64Cu SAR-bisPSMA for detecting prostate cancer in pelvic lymph nodes. Slated to begin patient enrollment in late 2023, the phase 3 CLARIFY trial is expected to involve 383 people with high-risk prostate cancer who will be having a radical prostatectomy with pelvic lymph node dissection, according to Clarity Pharmaceuticals.
Alan Taylor, Ph.D., said “compelling” pre-clinical and clinical trial results warranted further phase 3 trial exploration of 64Cu SAR-bisPSMA PET, which may provide a viable alternative to the “low uptake and washout” of first-generation PSMA agents.
“The positive results from our completed PROPELLER trial showed that 64Cu SAR-bisPSMA is safe, and its uptake in PSMA-expressing cancer lesions was significantly higher compared to the approved standard-of-care PSMA imaging agent for (prostate cancer) in Australia and the (United States),” said Dr. Taylor, the executive chairperson of Clarity Pharmaceuticals. “This may enable diagnosis of additional and smaller lesions, especially when coupled with the opportunity for delayed imaging, a characteristic not available to the first generation of PSMA imaging agents that exhibit high specificity but low sensitivity in diagnosing metastases outside of the prostate.”
Study: Monitoring of Prostate MRI Exams Could Lead to 75 Percent Reduction of Gadolinium Contrast
March 17th 2025While DCE MRI was deemed helpful in over 67 percent of cases in which it was used, researchers found that monitored prostate MRI exams, which facilitated a 75 percent reduction of DCE MRI sequences, had comparable sensitivity for prostate cancer as non-monitored exams.
Meta-Analysis Shows No Difference Between bpMRI and mpMRI in Ruling Out csPCa
March 6th 2025In an 18-study meta-analysis involving over 4,600 patients, researchers found that bpMRI and mpMRI had equivalent pooled negative predictive value (NPV) of 92 percent for clinically significant prostate cancer (csPCa).
Can Deep Learning Ultra-Fast bpMRI Have an Impact in Prostate Cancer Imaging?
March 3rd 2025A deep learning-enhanced ultra-fast bpMRI protocol offered similar sensitivity for csPCa as mpMRI with an 80 percent reduction in scan time, according to research findings presented at the European Congress of Radiology (ECR) conference.
