INS and MODY: With the subject and family's informed consent and very close monitoring, we attempted to transition the child to an oral sulfonylurea and off of injected insulin; however, 3 months later, while on 0.16 mg/kg/d of glipizide, the subject's average blood glucose was 300 and HbA1c increased to 12.7% (115.3 mmol/mol), necessitating the re‐institution of insulin and suggesting that this variant is not causative of MODY.