An aggressive form of MOGAD treated with aHSCT: A case report

Abstract

Background: Although myelin-oligodendrocyte-glycoprotein (MOG)–antibody-associated disease (MOGAD) has been considered a more favorable demyelinating central nervous system disorder, recent data evidence that some patients might experience severe relapses and high disability. Actual treatment-options are acquired mostly from anti-aquaporin-4-antibody-positive neuromyelitis optica spectrum disorder and rely on clinical experience. Therefore, treatment of aggressive forms of MOGAD can be challenging. Objectives and methods: To describe a patient with an aggressive MOGAD treated with autologous hematopoietic stem cell transplantation (aHSCT). Results: A 56-year-old man was diagnosed with MOGAD in 2017 because of right optic-neuritis and anti-MOG-antibody positivity. In the following 2 years, he experienced two optic neuritis with good recovery after high-dose steroid. At the end of 2019, he presented sensory and motor impairment at lower limbs with evidence of several spinal, longitudinally extended, tumefactive inflammatory lesions. Despite sequential treatment with rituximab and tocilizumab alongside high-dose steroid, intravenous immunoglobulins and plasma-exchange, he experienced several clinical relapses and exhibited persistent magnetic resonance activity. He was finally addressed to intense immunosuppression with myeloablative conditioning regimen followed by autologous hematopoietic stem cell transplantation (aHSCT). After 2 years follow-up, he is free from disease-activity. Conclusions: In a patient affected by aggressive, treatment-refractory MOGAD, aHSCT resulted as safe and was able to suppress disease-activity for over 2 years.

NMOSD and MOGAD

“…B cell–depleting agents (eg, rituximab) may require a longer amount of time to become fully effective. Improvement after autologous hematopoietic stem cell transplantation in super-refractory cases has also been reported 81 …”

Autologous hematopoietic stem cells transplantation in MOGAD

“…Sbragia and colleagues herein describe an aggressive and unresponsive case of MOGAD treated with aHSCT after failure of different immunosuppressive treatments and propose this treatment as an additional safe option for refractory relapsing MOGAD cases. 8 They report a 56 years old man with MOGAD-related and steroid-responsive optic neuritis (ON) followed after 1 year by an asymptomatic brainstem lesion and, 1 month later, a new partially steroid-responsive ON. A symptomatic severe myelitis occurred 1 year later associated with multiple brain and spinal cord lesions partially responsive to steroids and Rituximab.…”