This Neuroscience video recap highlights key developments across MS, ALS, Alzheimer’s disease, and Parkinson’s, including new approvals, regulatory decisions, biomarker advances, and shifts in clinical pipelines.

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Top Stories Covered in This Video

Chapters

0:00 Introduction
0:08 NICE: Recommends natalizumab (Tysabri SC, Tyruko IV) for highly active RRMS when cladribine is unsuitable
0:37 Sandoz: Tyruko, first US MS biosimilar to Tysabri, now available with REMS and JCV testing support
1:04 Sanofi: FDA issues CRL for tolebrutinib in nrSPMS, firm to work with agency on next steps
1:32 Biogen: JAMA Neurology publishes VALOR/OLE data, earlier QALSODY linked to slower SOD1-ALS decline
2:05 Biohaven: BHV-7000 fails Phase 2 in MDD, psychiatry deprioritized as epilepsy program continues
2:33 Axsome: FDA accepts sNDA for AXS-05 in Alzheimer’s agitation and grants Priority Review
2:56 Quanterix: Nature study shows pTau-217 blood test maps population-level AD pathology and rules out in subsets 3:27 IRLAB: Gets approval to start Phase Ib signal-finding study of IRL757 for apathy in Parkinson’s disease
3:57 How to reach us

Transcript

Welcome to the latest edition of Neuroscience Updates, covering recent breakthroughs. Brought to you by LucidQuest.

Why it matters

  • Access to natalizumab broadens in the UK while a US biosimilar arrives, potentially lowering costs and expanding choice.
  • Regulatory shifts in MS and ALS, plus AD diagnostic and therapeutic advances, may reframe payer and prescriber decisions in 2026.
  • CNS development remains mixed, underscoring the importance of robust endpoints and post-authorization evidence.

🗓️ Explore details and sources

📚 View the full Neuroscience archive on our research hub page.

FAQ

What exactly did NICE change for MS patients?

NICE recommended natalizumab for adults with highly active RRMS after at least one DMT when cladribine is unsuitable, covering Tysabri (SC) and Tyruko (IV). This widens treatment choice, including during pregnancy [1].

Is Tyruko truly equivalent to Tysabri?

Sandoz states Tyruko is clinically equivalent to Tysabri for efficacy and safety, with REMS requirements and JCV testing support via Labcorp in the US [2].

Why did FDA issue a CRL for tolebrutinib?

Details are not specified in the source. Sanofi reported the CRL for nrSPMS, with plans to work with FDA while other regions continue reviews [3].

What did the QALSODY publication show?

Over >3.5 years, earlier tofersen initiation was associated with numerically slower functional decline and reduced death or permanent ventilation, alongside sustained neurofilament reductions in SOD1-ALS [4].

What is the regulatory status of AXS-05 in Alzheimer’s agitation?

FDA accepted the sNDA and granted Priority Review, with an action goal date set by the agency. The filing includes four randomized Phase 3 trials and long-term safety data [6].

What does the pTau-217 study imply for health systems?

Population-scale pTau-217 testing may identify at-risk individuals earlier and help rule out AD in others, aiding resource planning and trial readiness. Interpretation depends on assay thresholds and clinical pathways [7].

Entities / Keywords

Multiple sclerosis; RRMS; natalizumab, Tysabri, Tyruko; tolebrutinib; ALS, SOD1-ALS; QALSODY (tofersen); Alzheimer’s disease; AXS-05; pTau-217; Quanterix Simoa; Parkinson’s disease; IRL757; NICE; Sandoz; Sanofi; Biogen; Axsome Therapeutics; IRLAB Therapeutics; MSRD, Otsuka.

References

  1. https://www.nice.org.uk/news/articles/nice-recommends-new-treatment-option-for-highly-active-multiple-sclerosis

  2. https://www.sandoz.com/sandoz-launches-tyrukor-natalizumab-sztn-us-first-and-only-multiple-sclerosis-biosimilar/

  3. https://www.globenewswire.com/news-release/2025/12/24/3210238/0/en/Press-Release-Sanofi-provides-update-on-tolebrutinib-regulatory-submission-in-non-relapsing-secondary-progressive-multiple-sclerosis.html

  4. https://investors.biogen.com/news-releases/news-release-details/journal-american-medical-association-jama-neurology-publishes

  5. https://www.fiercebiotech.com/biotech/biohaven-flunks-phase-2-depression-trial-adding-concerns-pivotal-readout

  6. https://www.manilatimes.net/2025/12/31/tmt-newswire/globenewswire/axsome-therapeutics-announces-fda-acceptance-and-priority-review-of-supplemental-new-drug-application-for-axs-05-for-the-treatment-of-alzheimers-disease-agitation/2251454

  7. https://www.fiercebiotech.com/medtech/quanterixs-blood-test-alzheimers-disease-uncovers-potentially-treatable-population-decades

  8. https://finance.yahoo.com/news/irlab-receives-approval-phase-ib-070000864.html

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