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An MDS 2026 plenary speaker discusses the evolving role of infusion therapies, deep brain stimulation, and focused ultrasound in Parkinson disease, including when to consider device-aided therapies and how treatment selection can be individualized.

Mitzi Joi Williams, MD, is joined by Jakai McEwen, DO, and Charnetta Colton-Poole, MD, to discuss the challenges of communication between patients and their health care teams, including navigating medical language, promoting shared decision-making, and advocating for clear, patient-centered care.

Christen Kutz, PhD, PA-C, discusses a retrospective survey of neurology providers examining why patients with generalized myasthenia gravis are transitioning to nipocalimab and what real-world outcomes data suggest about its role in the treatment landscape.

Carlos Cruchaga, PhD, director of the NeuroGenomics and Informatics Center at Washington University, discusses emerging blood-based biomarkers for monitoring biological and cognitive responses to lecanemab treatment in Alzheimer disease.

Phase 2a trial results showed 800 mg vutiglabridin significantly improved motor symptom scores compared with placebo in early-stage Parkinson's disease.

Investigational oral dopamine agonist prodrug boosts good ON-time, cuts OFF-time and dyskinesia, and reduces levodopa in advanced Parkinson disease, as phase 2 begins.

The associate vice president of clinical research at the Parkinson's Foundation discussed a large-scale replication of rs3115534-G, a noncoding GBA1 variant tied to Parkinson disease in people of African ancestry.

At a NeurologyLive Clinical Forum in Philadelphia, Jessica D. Schulte, MD, PhD, of NYU Grossman School of Medicine, discussed how earlier recognition and systemic therapy options are changing the treatment paradigm for patients with NF1-associated plexiform neurofibromas.

Benjamin Walter, MD, MBA, discusses how advances in biomarker testing and genetic characterization are informing Parkinson disease care, alongside developments in adaptive deep brain stimulation and efforts to identify disease earlier.

Late-breaking findings from MDS 2026 suggest a gluten-free diet may affect cognitive and quality-of-life measures in Parkinson disease, although no significant changes in motor function were observed.

Exploratory extracellular vesicle biomarkers suggested KP405, a brain-penetrant GLP-1/GIP agonist, engaged insulin signaling and neuroinflammation pathways in a small phase 1 study.

Early phase 1 findings showed that the PROTAC LRRK2 degrader ARV-102 was associated with improvements in saccadic hypometria and changes in CSF markers of endolysosomal function, neuroinflammation, synaptic integrity, and axonal guidance in participants with Parkinson disease.

Full results from the phase 2b LUMA showed that investigational BIIB122/DNL151 did not slow confirmed clinical worsening in early-stage Parkinson's disease compared with placebo.