Fast Track for Phanes Lung Cancer Drug

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FDA has granted Phanes Therapeutics a fast track designation for PT217 and its use in treating patients with extensive-stage small cell lung cancer (ES-SCLC) with disease progression following platinum chemotherapy with or without a checkpoint inhibitor. PT217 was previously granted orphan drug status for treating SCLC in 2022. The company says that the average survival for patients who present with ES-SCLC without treatment is two to four months after diagnosis, and the the median survival for patients with treatment is 7-11 months.

PT217 is described as a first-in-class native IgG-like bispecific antibody targeting DLL3 and CD47. It is also being developed for treating large cell neuroendocrine carcinoma of the lung, and extrapulmonary neuroendocrine carcinomas, according to the company.

Phanes says a multi-center Phase I clinical trial of PT217 (NCT05652686 – SKYBRIDGE) is currently evaluating the safety, tolerability, pharmacokinetics and preliminary efficacy of PT217 in patients with advanced or refractory cancers expressing DLL3.

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