[Pubmed] Multidomain Fatigue, Cognitive, and Quality of Life Observations in Generalized Myasthenia Gravis Under Ravuliz

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Neurol Ther. 2026 Jun 18. doi: 10.1007/s40120-026-00974-4. Online ahead of print.

ABSTRACT

INTRODUCTION: This study aimed to explore fatigue and cognitive features as underrecognized non-motor dimensions in myasthenia gravis (MG), and to describe multidomain observations following initiation of ravulizumab in older adults with generalized myasthenia gravis (gMG).

METHODS: Three acetylcholine receptor antibody-positive older adults with gMG underwent a standardized multidomain evaluation, including clinical outcomes, patient-reported measures of fatigue and quality of life, and performance-based cognitive assessment. Clinical severity was assessed using the Myasthenia Gravis Activities of Daily Living (MG-ADL) scale and the Quantitative Myasthenia Gravis (QMG) score. Fatigue was assessed using the Neuro-QoL Fatigue scale and the Modified Fatigue Impact Scale (MFIS), and quality of life using the Myasthenia Gravis Quality of Life scale (MG-QoL). Cognitive performance was assessed using the Trail Making Test (TMT). Assessments were performed at baseline and repeated after approximately 12 months and analyzed descriptively.

RESULTS: Three patients were enrolled. At baseline, MG-ADL scores ranged from 9 to 10 and QMG scores from 10 to 17. Neuro-QoL Fatigue T-scores ranged from 66 to 70, and MFIS total scores from 18 to 43, with MFIS cognitive subscores ranging from 5 to 21. TMT part B completion times ranged from 284 to 300 s in two patients, while one patient was not evaluable. At follow-up, MG-ADL scores were 7, MG-QoL scores ranged from 10 to 14 (from baseline 22-25), Neuro-QoL Fatigue T-scores were lower by 13-17 points, and MFIS total scores were lower by 3, 20, and 9 points across patients. Changes in MFIS cognitive subscores varied, with one patient showing a slight increase (5 → 6) and others showing reductions. One patient transitioned from non-evaluable to evaluable TMT part B performance, while switching cost showed heterogeneous changes across patients.

CONCLUSION: This exploratory case series describes heterogeneous multidomain trajectories across clinical, fatigue, and cognitive measures in gMG. The findings highlight the feasibility of integrating multidomain assessment of non-motor symptoms in this population, without supporting causal inferences regarding treatment effects.

PMID:42315783 | DOI:10.1007/s40120-026-00974-4


Source: https://pubmed.ncbi.nlm.nih.gov/4231578 ... 2&v=2.20.0