Neuren Pharmaceuticals earns FDA Fast Track for NNZ-2591 in PMS

Neuren Pharmaceuticals shares are in focus after the FDA granted Fast Track to its NNZ-2591 treatment for Phelan-McDermid syndrome.

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Key points

  • Neuren Pharmaceuticals received US FDA Fast Track designation for its NNZ-2591 treatment in Phelan-McDermid syndrome, along with Angelman and Pitt Hopkins syndromes, highlighting significant progress as there are no FDA-approved therapies for PMS currently.
  • The Koala Phase 3 trial for NNZ-2591 in children with PMS is underway, and all NNZ-2591 indications have orphan drug status in the US and EU, providing potential expedited development and review benefits.
  • With an increase in share price by 74% over the past year, Neuren is set to update on ongoing clinical trials and development, particularly with the Fast Track and orphan drug designations promoting a clearer path toward commercialising these treatments.

The Neuren Pharmaceuticals Ltd (ASX: NEU) share price is in focus today after the company revealed that the US FDA has granted Fast Track designation for its NNZ-2591 treatment in Phelan-McDermid syndrome (PMS). This marks a significant milestone as there are currently no FDA-approved therapies for PMS.

What did Neuren Pharmaceuticals report?

  • US FDA Fast Track designation granted to NNZ-2591 for PMS.
  • NNZ-2591 is also Fast Tracked for Angelman and Pitt Hopkins syndromes.
  • Koala Phase 3 trial for NNZ-2591 in PMS is underway in children aged 3–12.
  • Positive Phase 2 clinical results in PMS, Pitt Hopkins, and Angelman syndromes.
  • All NNZ-2591 indications have received "orphan drug" status in the US and EU.
  • No FDA-approved treatments exist for PMS at present.

What else do investors need to know?

The Fast Track designation is designed to speed up both the development and review process of drugs targeting serious conditions with unmet needs. For Neuren, this means potentially quicker feedback and more communication from the FDA, and eligibility for accelerated or priority review pathways if trial results are strong.

Neuren's Koala trial is the first ever Phase 3 clinical trial in PMS, a rare condition impacting 1 in 8,000 to 15,000 people. NNZ-2591 is a key part of its strategy to develop therapies for critical childhood neurological disorders with limited or no available treatments.

What did Neuren Pharmaceuticals management say?

Commenting on the news, CEO Jon Pilcher said:

As we approach Phelan-McDermid Syndrome Awareness Day on 22 October, we are very pleased to announce Fast Track designation for our NNZ-2591 program. Neuren's Koala trial is the first ever Phase 3 clinical trial for PMS, which we hope may lead to a much-needed treatment for this community. We encourage all initiatives to increase awareness and diagnosis of PMS and applaud the leadership of both the Phelan-McDermid Syndrome Foundation and CureSHANK.

What's next for Neuren Pharmaceuticals?

Investors can watch for updates as Neuren progresses through its Koala Phase 3 trial for NNZ-2591 in children with PMS, plus ongoing development work in Angelman and Pitt Hopkins syndromes. With Fast Track and orphan drug designations in hand, Neuren has a clearer path to bring these potential treatments to communities in need, pending successful trial outcomes.

Neuren Pharmaceuticals share price snapshot

Neuren Pharmaceuticals shares have risen 74% over the past 12 months, outperforming the S&P/ASX 200 Index (ASX: XJO) which has risen around 8% over the same period.

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Motley Fool contributor Laura Stewart has no position in any of the stocks mentioned. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has no position in any of the stocks mentioned. The Motley Fool Australia has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips. This article was prepared with the assistance of Large Language Model (LLM) tools for the initial summary of the company announcement. Any content assisted by AI is subject to our robust human-in-the-loop quality control framework, involving thorough review, substantial editing, and fact-checking by our experienced writers and editors holding appropriate credentials. The Motley Fool Australia stands behind the work of our editorial team and takes ultimate responsibility for the content published by The Motley Fool Australia.

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