EVALUATION OF THE EFFICACY AND SAFETY OF RITUXIMAB IN NEUROMYELITIS OPTICA SPECTRUM DISORDERS AT PEOPLE’S HOSPITAL 115

Thanh Hùng Trần, Thịnh Đức Nguyễn

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Abstract

Objective: To develop a rituximab treatment protocol for NMOSD and to evaluate its feasibility, efficacy, and safety. Methods: We conducted a prospective case series involving five female patients with AQP4-IgG–positive NMOSD, diagnosed according to the 2015 IPND criteria, who were treated with rituximab at the Department of General Neurology, People’s Hospital 115, during the period from September 2024 to July 2025. Results: The protocol comprised assessment of indications and contraindications; laboratory testing and vaccination; the treatment regimen consisted of two 1 g infusions 14 days apart for induction, followed by 1 g every 6 months for maintenance; outpatient management. During 6 months of follow-up, no relapses were observed in any of the five patients. Two patients showed EDSS improvement (by 0.5 – 1 point), while three patients reduced their daily prednisolone dose (by 10 – 20 mg) and lost 3 – 6 kg in body weight. Regarding safety, three patients experienced no adverse events; two patients developed mild-to-moderate reactions (musculoskeletal pain, headache, flushing, dry skin). No serious adverse events or deaths were reported. Conclusion: The rituximab treatment protocol at People’s Hospital 115 achieved effective relapse prevention, functional improvement or stabilization, glucocorticoid dose reduction, and was both safe and feasible in clinical setting. Patients with AQP4-IgG-positive NMOSD should be considered for relapse-prevention therapy with rituximab.

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References

1. Đặng Phúc Đức, Nguyễn Hồng Quân, Trần Hậu Hoàng, Trần Thị Thúy Hằng. Đánh giá kết quả điều trị dự phòng ở bệnh nhân rối loạn phổ viêm tủy thị thần kinh. Tạp chí Y học Việt Nam. 2025;Tập 551(2):383-387. doi: 10.51298/vmj. v551i2.14668.
2. Lê Văn Thủy, Vũ Hồng Vân, Nguyễn Thị Hiền, Đỗ Thị Hà, Nguyễn Văn Hướng. Đặc điểm lâm sàng, hình ảnh học cộng hưởng từ và tính an toàn của rituximab liều thấp trên các trường hợp mắc phổ bệnh lý viêm tủy thị thần kinh. Nghiên Cứu Y Học (Đại Học Y Hà Nội). 2020;134(10):248-256.
3. Casallas-Vanegas A, Gomez-Figueroa E, de Sarachaga AJ, et al. Rituximab efficacy at different initial and maintenance doses in neuromyelitis optica spectrum disorder: Experience from a national health institute in Mexico. J Neurol Sci. 2020; 419:117204. doi: 10.1016/j.jns.2020.117204.
4. Ciron J, Audoin B, Bourre B, et al. Recommendations for the use of Rituximab in neuromyelitis optica spectrum disorders. Rev Neurol (Paris). 2018;174(4):255-264. doi: 10.1016/j.neurol.2017.11.005.
5. Kumpfel T, Giglhuber K, Aktas O, et al. Update on the diagnosis and treatment of neuromyelitis optica spectrum disorders (NMOSD) - revised recommendations of the Neuromyelitis Optica Study Group (NEMOS). Part II: Attack therapy and long-term management. J Neurol. 2024; 271(1): 141-176. doi:10.1007/s00415-023-11910-z.
6. Niino M, Isobe N, Araki M, et al. Clinical practice guidelines for multiple sclerosis, neuromyelitis optica spectrum disorder, and myelin oligodendrocyte glycoprotein antibody-associated disease 2023 in Japan. Mult Scler Relat Disord. 2024; 90:105829. doi: 10.1016/ j.msard.2024.105829.
7. Tahara M, Oeda T, Okada K, et al. Safety and efficacy of rituximab in neuromyelitis optica spectrum disorders (RIN-1 study): a multicentre, randomised, double-blind, placebo-controlled trial. Lancet Neurol. 2020;19(4):298-306. doi:10.1016/S1474-4422(20)30066-1.
8. Wang H, Zhou J, Li Y, Wei L, Xu X, Zhang J, et al. Adverse events of rituximab in neuromyelitis optica spectrum disorder: a systematic review and meta-analysis. Ther Adv Neurol Disord. 2021; 14:17562864211056710. doi: 10.1177/17562864211056710.
9. Wingerchuk D, Lucchinetti C. Neuromyelitis Optica Spectrum Disorder. N Engl J Med. 2022 Aug 18;387(7): 631-639. doi:10.1056/ NEJMra1904655.