CNSide available for the state of Texas in August 2025

Plus Therapeutics, Inc., a clinical-stage pharmaceutical company developing targeted radiotherapeutics with advanced platform technologies for central nervous system (CNS) cancers, announces that its wholly-owned subsidiary, CNSide Diagnostics, LLC will make CNSide cerebrospinal fluid (CSF) assay platform and testing services commercially available in Texas in August 2025. Initial commercial focus will be on National Cancer Institute (NCI) Designated Cancer Centers, which treat the highest number of patients at risk for leptomeningeal metastases (LM) and previously used CNSide. These institutions and provider networks include the University of Texas – Southwestern, MD Anderson Cancer Center, Mays Cancer Center, Baylor Scott & White Health, and Texas Oncology.

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“The CNSide assay is an invaluable diagnostic tool, relevant in providing important guidance in monitoring patient disease progression and in helping define patient treatment,” said Michael Youssef, M.D., Assistant Professor in the Department of Neurology and the Department of Hematology and Oncology at UT Southwestern Medical Center. “Having been a prior user of the CNSide assay, I look forward to the relaunch of this important patient management tool by CNSide.”

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CNSide is a Comprehensive Diagnostic Platform

The CNSide testing platform is a proprietary, laboratory-developed program designed to identify tumor cells that have metastasized to the central nervous system in patients with carcinomas and melanomas who are at risk of developing cancer of the central nervous system (CNS). CNS metastases are an epidemic affecting as many as 30% of adult cancer patients and affect the highly protected CNS space. Once the CNS is affected, diagnosis and treatment are difficult and as a result, approximately half of patients with CSF metastases instead receive just palliative care or hospice.

The comprehensive CNSide CSF Assay is a highly sensitive tool that diagnoses, monitors, and guides treatment, demonstrating significant advantages over the current standard of care. The superior clinical utility of CNSide has been shown in 9 peer-reviewed publications, a completed clinical trial, and has been validated in the market through real-world use. More than 11,000 CNSide tests have been performed at over 200 U.S. cancer institutions since 2020, delivering high sensitivity (92%) and specificity (95%), while influencing treatment decisions in over 90% of cases. By comparison, CSF cytology, the current standard of care for CNS Mets diagnosis, was originally developed over a century ago and offers suboptimal test sensitivity leading to missed or delayed diagnosis and treatment.

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Source- PR Newswire