Reactions 1704, p345 - 2 Jun 2018 Various toxicities: 2 case reports In a retrospective study, a 10-year-old girl developed facial flushing, fever, tachycardia, hypoxia and urgency to evacuate bowel, and a 15-year-old girl developed pyrexia, hypoxia, shortness of breath, hypoalbuminaemia, mild peripheral oedema, weight gain and capillary leak syndrome (CLS) following treatment with SL-401 for blastic plasmacytoid dendritic cell neoplasm (BPDCN) [time to reaction onset and not all outcomes stated]. Case 1: The 10-year-old girl, who was diagnosed with BPDCN, started receiving treatment with SL-401 12 µg/kg/day infusion every 2–3 weeks. During first course, she developed facial flushing and fever, which resulted in a 24 hours delay of the third dose. At the end of first course, she had stable scalp lesions and 0.33% bone marrow (BM) minimal residual disease (MRD). During second course, she developed tachycardia, hypoxia and urgency to evacuate bowel shortly following the second dose. The symptoms improved quickly after oxygen and diphenhydramine. Later, she tolerated subsequent doses with premedication. End of second course BM showed 80% blast. Blasts from both scalp lesion and BM remained to be CD123 positive. Treatment with SL-401 was discontinued. She died 5 months following progressive disease. Case 2: The 15-year-old girl, who was diagnosed with BPDCN started receiving treatment with SL-401 12 µg/kg/day infusion every 2–3 weeks. During first course, she experienced pyrexia, hypoxia and shortness of breath, which recovered following diphenhydramine. At the end of first course, she had a partial response with the disappearance of the peripheral blast. During second course, she again experienced transient fever and mild peripheral oedema. The fifth dose was held due to a 5kg weight gain and hypoalbuminaemia. The development of hypoalbuminaemia and weight gain, suggested possible development of CLS. Later, SL-401 treatment was discontinued. Due to progressive disease and she died after few months. Author comment: "Here, we report the first pediatric experience with SL-401. Similar to adults, we observed mild, transient infusion-related AEs that were easily manageable." Sun W, et al. First pediatric experience of SL-401, a CD123-targeted therapy, in patients with blastic plasmacytoid dendritic cell neoplasm: Report of three cases. Journal of Hematology and Oncology 11: 61, No. 1, 2 May 2018. Available from: URL: http://doi.org/10.1186/s13045-018-0604-6 - USA 803323590 0114-9954/18/1704-0001/$14.95 Adis © 2018 Springer International Publishing AG. All rights reserved Reactions 2 Jun 2018 No. 1704
Reactions Weekly – Springer Journals
Published: Jun 2, 2018
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