Clarity Pharmaceuticals Advances Prostate Cancer Imaging with First Phase III Patient

Clarity Pharmaceuticals has successfully imaged the first patient in its pivotal Phase III AMPLIFY trial for Cu-SAR-bisPSMA, a next-generation diagnostic agent targeting recurrent prostate cancer. This milestone sets the stage for potential FDA approval and broader clinical adoption.

  • First patient imaged in Phase III AMPLIFY trial for Cu-SAR-bisPSMA
  • Trial targets biochemical recurrence of prostate cancer with 220 participants
  • Cu-SAR-bisPSMA shows superior lesion detection and flexible imaging schedule
  • Manufacturing and supply chain prepared for US and Australian clinical sites
  • Data aims to support FDA approval and future commercialisation
An image related to CLARITY PHARMACEUTICALS LTD
Image source middle. ©

A Pivotal Step in Prostate Cancer Diagnostics

Clarity Pharmaceuticals (ASX: CU6) has marked a significant milestone by imaging the first patient in its Phase III AMPLIFY trial, a critical step toward validating Cu-SAR-bisPSMA as a cutting-edge diagnostic tool for prostate cancer recurrence. Conducted at XCancer in Omaha, Nebraska, this trial focuses on men experiencing biochemical recurrence, a rise in prostate-specific antigen (PSA) levels after initial treatment, where early and accurate detection is crucial.

The AMPLIFY trial is designed as a multi-centre, open-label study enrolling approximately 220 participants across the United States and Australia. It evaluates Cu-SAR-bisPSMA’s ability to detect recurrent prostate cancer lesions through PET/CT imaging at two timepoints: same-day and next-day post-administration. This approach aims to optimize lesion visibility and diagnostic accuracy.

Technological Edge and Clinical Promise

Cu-SAR-bisPSMA leverages Clarity’s proprietary sarcophagine (SAR) chelator technology, which securely binds copper isotopes, preventing leakage and enhancing safety. The agent’s bisPSMA design targets prostate-specific membrane antigen with high specificity, enabling detection of lesions as small as 2 millimeters and identifying disease recurrence up to six months earlier than current standard imaging agents.

In addition, the use of copper-64 offers logistical advantages over traditional isotopes like gallium-68 and fluorine-18. Its longer half-life allows centralized production and on-demand shipping to treatment centers, expanding access to patients in both metropolitan and regional areas equipped with PET scanners.

Strategic Positioning and Future Outlook

Clarity’s Executive Chairperson, Dr Alan Taylor, emphasized the company’s readiness with a robust copper-64 supply chain and multiple manufacturing partners to support the AMPLIFY trial and the parallel CLARIFY trial in pre-prostatectomy patients. The company’s strategy aims to overcome current limitations in sensitivity and accessibility of prostate cancer diagnostics, potentially transforming patient outcomes through earlier intervention.

While Cu-SAR-bisPSMA remains unregistered and pending regulatory approval, the AMPLIFY trial’s results are intended to form the basis for a New Drug Application (NDA) to the US Food and Drug Administration. Success here could pave the way for commercialisation and wider clinical adoption, addressing a significant unmet need given prostate cancer’s status as the second most common cancer in men worldwide.

Bottom Line?

As Clarity advances its Phase III trial, the race to redefine prostate cancer imaging intensifies, with patient outcomes and market dynamics hanging in the balance.

Questions in the middle?

  • Will the AMPLIFY trial confirm Cu-SAR-bisPSMA’s superiority over existing PSMA PET agents?
  • How quickly can Clarity scale manufacturing and distribution if FDA approval is granted?
  • What impact will regulatory decisions have on Clarity’s commercial prospects and partnerships?