Can-Fite BioPharma submits Phase 2 protocol for Lowe Syndrome drug
Can-Fite BioPharma Ltd. submitted a Phase 2 protocol for Piclidenoson to treat Lowe syndrome, a rare genetic disorder with no approved therapies. The open-label trial at Bambino Gesù Children's Hospital will evaluate efficacy and safety in five adult patients over six months, focusing on renal uptake improvements.

*this image is generated using AI for illustrative purposes only.
Can-Fite BioPharma Ltd. (NYSE: CANF) (TASE: CANF) submitted a Phase 2 clinical study protocol to Bambino Gesù Children's Hospital in Rome, Italy, on Aug. 03, 2026, marking the first clinical evaluation of Piclidenoson in patients with Lowe syndrome. This submission represents a significant milestone for the biotechnology company, which is advancing proprietary small molecule drugs for oncological and inflammatory diseases. The move addresses a critical unmet medical need, as Lowe syndrome is a rare inherited genetic disorder with no approved disease-modifying therapies currently available.
The study will be led by Prof. Francesco Emma, an internationally recognized expert in inherited kidney diseases. Can-Fite BioPharma entered into a collaboration agreement with Fondazione Telethon to support the clinical development of Piclidenoson for this high-need indication. The selection of Piclidenoson for clinical evaluation was based on compelling preclinical studies demonstrating the restoration of OCRL-dependent cellular function.
These preclinical findings were identified by Dr. Antonella De Matteis, Professor of Biology at the Department of Molecular Medicine and Medical Biotechnology at the University of Naples Federico II. Dr. De Matteis also serves as Program Coordinator of Cell Biology and Disease Mechanisms at the Telethon Institute of Genetics and Medicine (TIGEM) in Italy. Her research provided the foundational evidence for pursuing clinical trials in humans.
Lowe syndrome is a rare X-linked multisystem genetic disorder caused by mutations in the OCRL gene. The condition results in severe renal, neurological, and ocular manifestations. The renal disease is characterized by progressive proximal tubular dysfunction, leading to Fanconi syndrome, chronic kidney disease, and eventual kidney failure. Current management strategies are supportive, with no approved therapy addressing the underlying disease mechanism.
The Phase 2 study is designed as an open-label, single-center clinical trial. It aims to evaluate the efficacy and safety of oral Piclidenoson administered twice daily for six months in five adult patients with genetically confirmed Lowe syndrome. The small study size is intended to support regulatory interactions and potential registration upon positive results.
Study Design and Endpoints
The trial focuses on specific renal and safety metrics to determine the drug's impact on proximal tubular function. The primary and secondary endpoints are structured to provide comprehensive data on therapeutic potential.
| Endpoint Type | Measurement Criteria |
|---|---|
| Primary | Improvement in renal uptake of 99mTc-DMSA as a measure of proximal tubular reabsorption capacity |
| Secondary | Urinary biomarkers of tubular function |
| Secondary | Fanconi syndrome parameters |
| Safety | Overall safety profile of oral Piclidenoson administration |
What the Numbers Show
The decision to proceed with a single-center, five-patient Phase 2 trial reflects the rarity of Lowe syndrome and the lack of existing treatment options. By focusing on renal uptake of 99mTc-DMSA as the primary endpoint, Can-Fite BioPharma is prioritizing a direct measure of the drug's ability to restore proximal tubular reabsorption capacity. This approach allows for early assessment of efficacy in a highly controlled environment before expanding to larger, multi-center studies. The collaboration with Fondazione Telethon and the involvement of leading experts like Prof. Francesco Emma and Dr. Antonella De Matteis underscore the scientific rigor behind the development strategy.
How might the results of this small-scale Phase 2 trial influence Can-Fite BioPharma's ability to secure larger funding rounds or strategic partnerships for future multi-center studies?
What are the potential regulatory hurdles or specific FDA/EMA requirements that could impact the timeline for moving from this single-center trial to a pivotal Phase 3 registration study?
Could the success of Piclidenoson in restoring OCRL-dependent function open doors for repurposing the drug in other rare genetic disorders with similar cellular mechanisms?































