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CHMP Adopts Negative Opinion on Arimoclomol for Niemann-Pick Disease Type C – Zevra Therapeutics

Written by | 3 Aug 2026 | Drug Approvals

Zevra Therapeutics announced that the CHMP has adopted a negative opinion regarding the Marketing Authorization Application (MAA) for arimoclomol for the treatment of Niemann-Pick disease type C (NPC), a rare, progressive and life-threatening neurodegenerative disorder.

Under European regulatory procedures, the Company plans to request a re-examination of the CHMP opinion and submit a detailed explanation outlining the basis for the request.

“While the review did not result in the outcome we had hoped for, we are committed to investigating appropriate pathways to bring arimoclomol to patients in Europe. We appreciate the important role the CHMP plays in assessing therapies across Europe, and we remain confident in the totality of evidence supporting the potential of arimoclomol to make a meaningful difference in the lives of patients living with NPC.” – Neil F. McFarlane, President and Chief Executive Officer of Zevra Therapeutics.

Zevra remains steadfast in its commitment to the NPC community and believes that patients facing this devastating disease deserve access to potential treatment options. Through its global Expanded Access Program (EAP), the Company continues to support eligible patients to advance access to arimoclomol and generate additional real-world evidence of its clinical impact. The recently updated international Consensus Clinical Management Guidelines for Niemann-Pick disease type C further underscore the role of arimoclomol as an important treatment option for individuals living with NPC.1

“In my experience, arimoclomol has demonstrated meaningful treatment effects in NPC, with stabilization and slowed progression in a condition with significant unmet need. Real-world clinical experience in NPC can provide additional insights into how patients are managed in routine care settings, contributing to the broader understanding of disease management in ultra-rare, progressive diseases.” – Prof. Thorsten Marquardt, University of Münster.

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