Fast Track for Prostate Cancer Imaging Drug

FDA has granted Clarity Pharmaceuticals a fast track designation for 64Cu-SAR-bisPSMA for positron emission tomography (PET) imaging of prostate-specific membrane antigen (PSMA) positive prostate cancer lesions in patients with biochemical recurrence of prostate cancer following definitive therapy.

The designation is based on data the company submitted that highlighted several advantages of 64Cu-SAR-bisPSMA over currently approved PSMA PET agents “due to the bivalent structure of bisPSMA and the longer half-life of 64Cu (12.7 hours vs. less than two hours for 18F and 68Ga),” the company says. “Advantages have been shown with same-day and next-day imaging, however, the standout was next-day 64Cu-SAR-bisPSMA PET imaging, showing localized disease in up to 80% of participants and detecting lesions as small as 2mm.”

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