PMID- 35402762 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220413 IS - 2472-1972 (Electronic) IS - 2472-1972 (Linking) VI - 6 IP - 5 DP - 2022 May 1 TI - A Case of Methimazole-Induced Acute Pancreatitis With an HLA Allele Causing Antithyroid Drug-Induced Agranulocytosis. PG - bvac038 LID - 10.1210/jendso/bvac038 [doi] LID - bvac038 AB - Among the side effects of methimazole (MMI) for the treatment of Graves' disease, MMI-induced acute pancreatitis (MIP) is a rare adverse reaction, with only 7 cases being reported to date. However, 2 large-scale population-based studies recently revealed that the risk of MIP was significantly higher, ranging from 0.02% to 0.56%. Although MIP is common in middle-aged and elderly Asian women, its pathogenesis remains largely unknown. We herein present a case of a 72-year-old Japanese woman with Graves' disease who developed MIP 12 days after the initiation of MMI. The MMI was discontinued, the patient was switched to propylthiouracil (PTU) therapy, and pancreatitis gradually resolved. Serological human leukocyte antigen (HLA) typing identified HLA-DRB1*08:03:02. This HLA allele was previously detected in a patient with MIP and is one of the major risk factors for agranulocytosis induced by antithyroid drugs, including PTU as well as MMI. In cases of MIP, PTU is being considered as an alternative to MMI; however, its safety needs further investigation and patients require close monitoring after the switch to PTU. Further studies are warranted, particularly on the relationship between MIP and the presence of HLA alleles causing antithyroid drug-induced agranulocytosis. CI - (c) The Author(s) 2022. Published by Oxford University Press on behalf of the Endocrine Society. FAU - Yoshimura, Yusuke AU - Yoshimura Y AUID- ORCID: 0000-0002-7358-9747 AD - Department of Endocrinology and Metabolism, Toranomon Hospital, Minato-ku, Tokyo 105-8470, Japan. FAU - Tatsushima, Keita AU - Tatsushima K AD - Department of Endocrinology and Metabolism, Toranomon Hospital, Minato-ku, Tokyo 105-8470, Japan. FAU - Goshima, Yukiko AU - Goshima Y AD - Department of Endocrinology and Metabolism, Toranomon Hospital, Minato-ku, Tokyo 105-8470, Japan. FAU - Hoshino, Yoshitomo AU - Hoshino Y AD - Department of Endocrinology and Metabolism, Toranomon Hospital, Minato-ku, Tokyo 105-8470, Japan. FAU - Nakashima, Saki AU - Nakashima S AD - Department of Endocrinology and Metabolism, Toranomon Hospital, Minato-ku, Tokyo 105-8470, Japan. FAU - Inaba, Tatsuro AU - Inaba T AD - Department of Endocrinology and Metabolism, Toranomon Hospital, Minato-ku, Tokyo 105-8470, Japan. FAU - Ikeda, Sara AU - Ikeda S AD - Department of Endocrinology and Metabolism, Toranomon Hospital, Minato-ku, Tokyo 105-8470, Japan. FAU - Hattori, Daisuke AU - Hattori D AD - Department of Gastroenterology, Toranomon Hospital, Minato-Ku, Tokyo 105-8470, Japan. FAU - Koyama, Rikako AU - Koyama R AD - Department of Gastroenterology, Toranomon Hospital, Minato-Ku, Tokyo 105-8470, Japan. FAU - Imamura, Tsunao AU - Imamura T AD - Department of Gastroenterology, Toranomon Hospital, Minato-Ku, Tokyo 105-8470, Japan. FAU - Takeshita, Akira AU - Takeshita A AUID- ORCID: 0000-0003-3685-9055 AD - Department of Endocrinology and Metabolism, Toranomon Hospital, Minato-ku, Tokyo 105-8470, Japan. AD - Okinaka Memorial Institute for Medical Research, Minato-ku, Tokyo 105-8470, Japan. FAU - Takeuchi, Yasuhiro AU - Takeuchi Y AD - Department of Endocrinology and Metabolism, Toranomon Hospital, Minato-ku, Tokyo 105-8470, Japan. LA - eng PT - Case Reports DEP - 20220310 PL - United States TA - J Endocr Soc JT - Journal of the Endocrine Society JID - 101697997 PMC - PMC8989154 OTO - NOTNLM OT - Graves' disease OT - acute pancreatitis OT - human leukocyte antigen OT - methimazole EDAT- 2022/04/12 06:00 MHDA- 2022/04/12 06:01 PMCR- 2022/03/10 CRDT- 2022/04/11 05:32 PHST- 2022/01/18 00:00 [received] PHST- 2022/04/11 05:32 [entrez] PHST- 2022/04/12 06:00 [pubmed] PHST- 2022/04/12 06:01 [medline] PHST- 2022/03/10 00:00 [pmc-release] AID - bvac038 [pii] AID - 10.1210/jendso/bvac038 [doi] PST - epublish SO - J Endocr Soc. 2022 Mar 10;6(5):bvac038. doi: 10.1210/jendso/bvac038. eCollection 2022 May 1.