Leslie Saba, Erica M Fatica, Amir B Orandi, Siobhan T Pittock, Ana L Creo
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Exogenous Insulin Antibody Syndrome in a Pediatric Patient: Successful Treatment with Mycophenolate Mofetil.
Introduction: Exogenous insulin antibody syndrome (EIAS) rarely occurs in type 1 diabetes and should be considered in those with blood glucose levels outside the target range requiring greater than 2 units/kg/day of insulin without obesity. We describe the novel treatment of this condition using mycophenolate mofetil monotherapy in a pediatric patient in the outpatient setting.
Case presentation: A 17-year-old Caucasian male with type 1 diabetes experienced an abrupt increase in insulin requirements from 1.7 to 3.3 units/kg/day. Total insulin level was 7 µIU/mL with free insulin of 4.8 µIU/mL (68% of the total insulin), suggesting the presence of insulin antibodies. Switching from insulin aspart to glulisine was unsuccessful as insulin requirements increased to 4.4 units/kg/day. Treatment with oral mycophenolate mofetil decreased insulin requirements to 1.4 units/kg/day after 7 months. Total and free insulin levels improved to 5.2 and 4.6 µIU/mL, respectively (free insulin was 88% of total insulin). No adverse effects were encountered.
Conclusion: Mycophenolate mofetil monotherapy is successful in safely treating EIAS in a pediatric patient.
期刊介绍:
The mission of ''Hormone Research in Paediatrics'' is to improve the care of children with endocrine disorders by promoting basic and clinical knowledge. The journal facilitates the dissemination of information through original papers, mini reviews, clinical guidelines and papers on novel insights from clinical practice. Periodic editorials from outstanding paediatric endocrinologists address the main published novelties by critically reviewing the major strengths and weaknesses of the studies.