Multiple sclerosis (MS) is a central nervous system demyelinating disease with a prevalence of approximately 400,000 individuals in the United States. Glatiramer acetate is a frequently prescribed diseasemodifying therapy used for the management of relapsing forms of the disease. A 40-year-old woman with relapsing-remitting MS presented with symptomatic concerns of vomiting, fever, diffuse rash, joint and low back pain, and distal lower-limb paresthesia and was subsequently admitted to the hospital for investigation and treatment. She was discharged initially after conservative management with intravenous methylprednisolone and diphenhydramine. She was restarted on glatiramer acetate 3 weeks later and required rehospitalization for similar symptoms 3 days after resumption of the disease-modifying therapy and was diagnosed as having serum sickness. Int J MS Care. 2017;19:263-264.
Multiple sclerosis (MS) is a central nervous system demyelinating disease with a prevalence of approximately 400,000 affected individuals in the United States.1 The condition is managed in part with disease-modifying therapies that lessen the frequency of clinical relapses and curtail the formation of new lesions noted on magnetic resonance imaging (MRI). Glatiramer acetate (GA) is a frequently prescribed therapy for relapsing forms of MS.
2Herein I report the case of a recently diagnosed patient with relapsing-remitting MS who developed recurrent serum sickness with exposure to GA after having been receiving treatment for 5 months. The patient's first, and only, disease-modifying therapy was GA 40 mg subcutaneously three times weekly. Her relapsingremitting MS diagnosis was established based on clinical symptoms of recurrent optic neuritis as well as right-sided sensory impairment. Initial neuroimaging with MRI demonstrated gadolinium enhancement of the optic nerve in the setting of nonenhancing T2 hyperintensities in the subcortical white matter and in the cervical spine at the level of C5. Institutional review board approval was provided by the Office for Human Research Protections, Marshall University (Huntington, WV), and the patient provided written consent for this report.
Case ReportA 40-year-old woman with relapsing-remitting MS presented to the local emergency department with symptoms of acute vomiting, fever, diffuse rash, joint and mild low back pain, and distal lower-limb paresthesia and was admitted for investigation. Physical examination findings were remarkable for new petechial rash and chronic monocular visual decrement and right afferent pupillary defect. She noted arthralgia on joint manipulation, but no obvious deformity or joint abnormalities were observed. During the first hospitalization she was treated with intravenous methylprednisolone and diphenhydramine for symptom mitigation of the rash and pruritus. Laboratory analysis showed mild pancytopenia. Hepatitis panel, peripheral blood smear, cyclic citrullinated peptide, erythrocyte sedimentation rate, C-reactive protein, cytomegalovirus, HIV, and EpsteinBarr viru...