Transient Impact of Rituximab in H1N1 Vaccination–associated Narcolepsy With Severe Psychiatric Symptoms  

Oleh:

Sarkanen, Tomi ; Alen, Reija ; Partinen, Markku

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: The Neurologist vol. 21 no. 05 (Sep. 2016), page 85-86.
Topik: H1N1 Vaccine; Rituximab; Narcolepsy; Pandemrix; Psychosis; Psychotic Disorders

Ketersediaan

Perpustakaan FK Nomor Panggil: N06.K Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Introduction: Narcolepsy type 1 is an organic sleep disorder caused by the destruction of hypocretin producing neurons in hypothalamus. In addition to daytime sleepiness, the spectrum and severity of symptoms are very variable. Psychiatric comorbidity and phenomena resembling psychotic symptoms are also common. Current treatment options for narcolepsy are symptomatic but there are few case reports of positive effect of immunotherapy. We report a very severely affected young boy treated with rituximab (RXB). Case Report: A 12-year-old boy developed narcolepsy after Pandemrix H1N1 vaccination in 2010. He started to express severe psychiatric symptoms shortly after the onset. Cataplexy and sleepiness were devastatingly disabling. Conventional treatments did not have any effect on symptoms so we decided to try RXB, chimeric human monoclonal antibody against CD20+ expressed in B lymphocytes. After the first treatment his condition ameliorated dramatically. Unfortunately, the effect lasted only for 2 months. Following attempts did not show any effect. Conclusions: Effect of RXB on narcolepsy has not been reported before. Remarkable but short-lasting effect of RXB in narcolepsy is intriguing as it could imply that there is still ongoing B cell–mediated autoimmune response possible contributing to symptoms in narcolepsy.

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