Telix to Present Phase 3 ProstACT Data at ASCO, Highlighting Safety of TLX591‑Tx

TLX
April 22, 2026

Telix will present safety and dosimetry data from Part 1 of its ProstACT Global Phase 3 study at the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting in Chicago on June 1. The oral presentation, selected as a late‑breaking session, will cover the lutetium‑177‑based radioligand therapy TLX591‑Tx in combination with standard of care for metastatic castration‑resistant prostate cancer.

The abstract, titled “Safety and dosimetry of 177Lu‑rosopatamab tetraxetan plus SoC in patients with metastatic castration‑resistant prostate cancer: Preliminary results from Part 1 of Phase 3 ProstACT Global study,” underscores the clinical relevance of the data. By demonstrating a favorable safety profile and manageable dosimetry, Telix aims to strengthen its regulatory strategy and accelerate market access for the first therapeutic agent in its pipeline.

Telix’s dual‑platform strategy—diagnostic imaging to identify patients most likely to benefit and a targeted therapeutic—positions the company to capture a growing segment of the metastatic castration‑resistant prostate cancer market, which is increasingly served by radioligand therapies such as Novartis’s Pluvicto. Positive Phase 3 results could give Telix a competitive edge and support a broader commercial rollout.

The ASCO presentation is expected to generate heightened interest among clinicians and investors, providing a platform for Telix to showcase the safety profile and early efficacy signals of TLX591‑Tx. A successful data set would de‑risk the asset, potentially leading to accelerated regulatory approvals and a stronger commercial trajectory.

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