FDA Lifts Partial Clinical Hold on Alzheimer’s Drug

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FDA has removed a partial clinical hold against Vigil Neuroscience and its ongoing Phase 1 clinical trial of VG-3927, a small molecule targeting human triggering receptor expressed on myeloid cells 2 (TREM2) agonist for treating common neurodegenerative diseases associated with microglial dysfunction, particularly Alzheimer’s disease. The decision to lift the hold follows a company-submitted complete response to agency concerns raised 9/2023 that limited the maximum exposure of VG-3927 in healthy volunteers in the Phase 1 clinical trial

In July, the company said recent interim data from the ongoing clinical trial that showed a safety and tolerability profile supporting VG-3927’s continued clinical development. “In addition,” it said, “VG-3927 demonstrated a predictable PK profile supportive of once-daily dosing. Importantly, VG-3927 achieved a robust and sustained decrease of soluble TREM2 in the CSF [cerebrospinal fluid] demonstrating clinical proof-of-target engagement.”

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