Myasthenia gravis

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Efgartigimod active on different muscle groups in myasthenia gravis

A post-hoc analysis of the results of the Adapt trial, which was conducted in France in 167 adults with a generalised form of autoimmune myasthenia gravis, showed that efgartigimod resulted in : an improvement, greater than on placebo, in each of the muscle sub-domains (respiratory, ocular, bulbar, limb) assessed by the MG-ADL score, observed from … [Read more]

Three studies establish links between intestinal microbiota and myasthenia gravis

The role of intestinal flora is the subject of sustained attention in medical research, particularly in dysimmune diseases such as myasthenia gravis. Various publications point to the existence of dysbiosis in this disease: The results of the German Mybiom study show, in cases of myasthenia (n=42), a lower diversity of intestinal flora than in a … [Read more]

When smartphones and AI combine to assess myasthenia gravis in real life

UCB and Sharecare conducted a three-month prospective real-life study in the United States involving 82 patients with moderate to severe autoimmune myasthenia gravis. The participants sent selfie videos to the investigators, which were analysed automatically by a margin reflex distance (MDR1) measurement tool developed using an artificial neural network: these measurements proved to be effective, … [Read more]

Significant drug iatrogenicity in late myasthenia gravis

A retrospective study of the medical data of 493 people suffering from autoimmune myasthenia followed by the university hospital centres of Strasbourg, Lyon, Grenoble and Angers reveals that the disease began after the age of 70 for 28% of them. Among these older patients : 76% improved with treatment during follow-up, despite lower doses, 41% … [Read more]

Infantile myasthenia remains ocular and usually evolves favourably

A retrospective study of 859 patients followed by a Shanghai hospital for Myasthenia gravis diagnosed before the age of 14 found : an ocular form in 97.8% of cases, which only generalized in 14% of patients; 21.7% were in stable complete remission, 15.3% in pharmaceutical remission, and 42% of patients had achieved minimal manifestation status … [Read more]

Characteristics of and response to treatment for double seronegative myasthenia gravis

A retrospective Canadian study of 80 people with double-seronegative myasthenia for anti-RACh and anti-MuSK antibodies, compared with 73 people with myasthenia for anti-RACh antibodies, showed that : the initial proportion of people with ocular forms (46.3%) was significantly higher in the double-seronegative group than in the anti-RACh myasthenia group; the Myasthenia Gravis Impairment Index (MGII) … [Read more]

Promising initial results for CAR-T RNA cells in myasthenia gravis

The MG-001 trial is evaluating Descartes-08 CAR-T cells from Cartesian Therapeutics in the United States. These are autologous T lymphocytes genetically modified, not by DNA but by RNA, to target the B lymphocyte maturation antigen (BCMA) expressed on the surface of plasma cells. The first two parts of the trial, in 14 adults with a … [Read more]

Myasthenia gravis and innovative therapies: a study provides a critical overview of the data in the literature

Italian researchers have compiled recent data from the literature on the efficacy of new treatments for myasthenia gravis, in particular complement inhibitors and fetal immunoglobulin receptor (FcRn) blockers. A Cochrane-type approach was used, resulting in a simple meta-analysis and a network meta-analysis, The observation windows for product efficacy were significantly different (26 weeks for eculizumab … [Read more]

Cross-sectional study of neuromuscular fatigue in autoimmune myasthenia – Interview with Simone Birnbaum

Simone Birnbaum, a researcher at the Neuromuscular Physiology and Evaluation Laboratory directed by Jean-Yves Hogrel (NIC, Institute of Myology) has just published an article assessing neuromuscular fatigue in persons with Myasthenia gravis in the journal Clinical Neurophysiology. Interview with Simone Birnbaum. What was the aim of the study? Myasthenia gravis (MG) is a rare disease characterized by … [Read more]

Firdapse® in Myasthenia Gravis too?

3,4-diaminopyridine or amifampridine (Firdapse®) is already indicated in some myasthenic syndromes, congenital or autoimmune (Lambert-Eaton). In the past, case reports had alerted to the possible efficacy of this drug in myasthenia gravis as well. The results of an open-label clinical trial conducted in Italy in 15 adults with anti-acetylcholine receptor (AChR) myasthenia gravis support these … [Read more]