First Patient Dosed in European Named Patient (Early Access) Program for TLX250-CDx, Telix’s Kidney Cancer Imaging Agent

Melbourne (Australia) | 4 December 2023

Telix today announces that the first patient has been dosed in a named patient (early access) program in the Netherlands for its investigational positron emission tomography (PET) imaging agent TLX250-CDx (89Zr-DFO-girentuximab) in clear cell renal cell carcinoma (ccRCC), the most common and aggressive form of kidney cancer.

Through this named patient program in the Netherlands (‘Leveren op Artsenverklaring’), physicians may seek individual access to TLX250-CDx for use in PET characterisation of renal masses as ccRCC. The first patient was dosed at Radboud University Medical Centre in Nijmegen, Netherlands.

The program follows the completion of Telix’s successful global Phase III ZIRCON study (Zirconium in Renal Cancer Oncology, Identifier: NCT03849118), which reported positive results in November 2022, meeting all co-primary and secondary endpoints.[1]

Professor Dr. Peter Mulders from Radboud University Medical Centre (Netherlands), a Principal Investigator on Telix’s completed ZIRCON trial commented, “Continued access to this investigational imaging agent is critically important. The detection of ccRCC in the early stages of disease can often be challenging, and reliant on invasive biopsy and nephrectomy (kidney removal). It is therefore extremely good news that TLX250-CDx, which offers a non-invasive option – or ‘molecular biopsy’ – is now available in the Netherlands on a named patient basis.”

Frédéric Fantino, Telix Medical Director for the Europe, Middle East and Africa (EMEA) region, added, “The first patient dosed in this European named patient program is a significant step for Telix to support continued unmet patient need and educate key opinion leaders on the potential of TLX250-CDx to change standard of care in the diagnosis and management of ccRCC. The ZIRCON study has shown this imaging agent to be highly sensitive and specific in the detection of ccRCC, where existing imaging techniques are sometimes inconclusive.”

In the Netherlands, the use of a medicinal product in an individual patient prior to marketing authorisation and outside the context of a clinical trial is permitted in exceptional circumstances. Individual requests must be initiated by the treating physician and are evaluated by the Dutch Health Inspectorate (IGJ).

Telix is progressing towards a Biologics License Application (BLA) submission for TLX250-CDx with the United States Food and Drug Administration (FDA) and other equivalent applications with regulatory agencies in key commercial jurisdictions.

Physicians in Europe who may have eligible patients can email for further information about TLX250-CDx named patient access.

For more information about ongoing clinical trials of TLX250-CDx, please visit

Telix’s Policy on Offering Compassionate Use to Investigational Medicines can be downloaded at the following link.

Read the full media release here

[1] Telix ASX disclosure 7 November 2022.