Lantheus NDA for Pylarify New Formulation

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FDA has accepted a Lantheus NDA for a new formulation of its Pylarify F 18 prostate-specific membrane antigen (PSMA) imaging agent, submitted by its affiliate, Aphelion. The agency has set a user fee review action target date of 3/6/2026.

The new formulation builds on Lantheus’ current prostate cancer imaging agent, Pylarify (piflufolastat F 18) and its use for detecting recurrent prostate cancer in men with rising prostate-specific antigen (PSA) levels. According to Lantheus, the updated formulation is expected to maintain the same diagnostic efficacy while significantly increasing manufacturing efficiency — potentially boosting the number of doses per batch by about 50%.

Approved for PET imaging of PSMA-positive lesions in men with prostate cancer, Pylarify helps clinicians assess both suspected metastasis and disease recurrence, according to the company. It combines PSMA targeting with fluorine-18 radiolabeling for high diagnostic clarity and has been used in more than 500,000 scans across the U.S., it adds.

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