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FDA Grants Fast Track Designation To X4 Pharma's Mavorixafor For Chronic Neutropenia

X4 Pharmaceuticals, Inc. (XFOR), Tuesday said that the U.S. Food and Drug Administration (FDA) has granted Fast Track designation to mavorixafor for the treatment of chronic neutropenia (CN).

A Phase 3 study of mavorixafor in certain primary CN conditions is underway. Topline data from Phase 3 4WARD study in CN are expected in late 2026.

Mavorixafor is already approved in 2024 for the treatment of WHIM syndrome, a rare genetic disorder.

by RTTNews Staff Writer

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