Semaglutide demonstrated inferior weight loss responses in patients with type 2 diabetes (T2D) compared to patients with obesity without T2D. The individualized metabolic surgery (IMS) score was validated to predict T2D remission after bariatric surgery. The parameters of the IMS are HbA1c (<7%), insulin use, T2D medications and T2D duration. We aim to assess weight loss outcomes of semaglutide based on IMS score in patients with obesity and T2D. This is a retrospective multicentered cohort study of patients with T2D and BMI≥ 27 kg/m² taking ≥1 mg of semaglutide recruited from January 2020 to December 2022. We excluded patients with a history of bariatric surgery or taking other anti-obesity medications. IMS was calculated at baseline and patients weight change was recorded at baseline, 3, 6, 9 and 12 months. IMS was classified as mild (0–24.9 points), moderate (25–94.9 points), and severe (95–180 points). Analysis was performed based on IMS score quartiles and combination of Mild-Moderate vs Severe categories. We performed mixed linear regression models including age, sex, and baseline weight to assess associations between IMS categories with total body weight loss percentage (TBWL%). We included 297 patients (42% female, mean age 62 ± 12 years) in the analysis. At 12 months, there was a stepwise decrease in weight loss outcomes when comparing patients by IMS quartiles (LS mean TBWL%± SE): 8.8 ± 0.8% vs 6.9 ± 0.8% vs 5.7 ± 0.9% vs 5.0 ± 0.8%. In the mixed linear model, patients in the mild-moderate category achieved significantly superior weight loss outcomes (LS mean TBWL± SE: −8.3 ± 0.7%) than patients in the severe category (−5.5 ± 0.6%; difference: −2.9, 95% CI: −5.2 to −0.5, p = 0.006) at 12 months. There was no significant difference in glycemic improvement regardless of IMS severity at baseline. In our cohort, lower IMS severity was associated with more weight loss in patients with obesity and T2D. Further studies are needed to understand T2D severity and its effect on semaglutide outcomes. Beyond payment to the research staff by 10.13039/100000871 Mayo Clinic , this research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

This is a case of a 26-year-old male patient, with relapsing Hodgkin lymphoma, treated with nivolumab and brentuximab-vedotin, who was admitted with hyperglycemia and severe insulin resistance requiring approximately 2000 units of intravenous insulin per day. He had no prior diagnosis of diabetes. He was eventually diagnosed with massive cytokine release and hemophagocytic lymphohistiocytosis that led to multi-organ failure and death. The mechanisms behind the hyperglycemia with severe insulin resistance remain unclear but are possibly related to hyperinflammation and immune dysregulation resulting from massive cytokine release. Nivolumab among other immunotherapeutic agents, brentuximab-vedotin, and lymphoid malignancies are rare but known risk factors for massive cytokine release and hemophagocytic lymphohistiocytosis.

A false pituitary tumor describes pituitary enlargement due to intracranial hypotension. Reported previously primarily in the neurological literature, we present this case referred to endocrinology for evaluation of a pituitary mass. A 24-year-old male was referred to endocrinology for evaluation of pituitary enlargement without a hypo-enhancing lesion on magnetic resonance imaging (MRI). The main symptom reported was headache that was worse in the standing position and in the afternoon. He had no symptoms or signs of pituitary mass-effect, or hormone excess or deficiencies. Past medical history was relevant for a history of nerve schwannoma status post resection with subsequent spinal fusion. Biochemical evaluation of pituitary hormones was normal. Upon review of his pituitary MRI, other abnormalities seen were suggestive of intracranial hypotension. Based on his history and imaging findings, he was diagnosed with intracranial hypotension causing a “false pituitary tumor” rather than pituitary enlargement or abnormality. Further evaluation revealed multiple spinal leaks that were patched. His symptoms subsided within a few days of repair. Endocrinologists should be aware of the possible misdiagnosis of a pituitary mass due to intracranial hypotension.