Sitagliptin-induced Pancreatitis: A case report and plausible mechanism
Abstract
Drugs are rare cause of acute pancreatitis (AP) with an estimate incidence of 0.1-2%. We present an 63-year-man 1 week history of severe and progressive epigastric pain that radiates to the back and is worse on lying down, who was found to have lipase of more than 813 IU/L. The patient denied current alcohol use. Abdominal ultrasound and abdominal computed tomography scan did not show gallstones or biliary duct abnormalities. For his type-2 diabetes mellitus, he was taking Gliclazide and Metformin for years and Sitagliptin was the only drug added 6 months ago. He was managed conservatively with intravenous fluids, pain medications, and control of diabetes with insulin. Within 3 days, he improved dramatically and was discharged on diabetic diet and Gliclazide 120 mg daily with Lantos 10 units at night. He was instructed to avoid oral hypoglycemia agents from the dipeptidyl-peptidase IV inhibitors (DPP-4i) group. Three weeks later, repeat computed tomography scan of the abdomen showed normal pancreas. On follow up; and up to 1 year, he did not have subsequent AP. The most plausible mechanism of such late-development of rare drug-induced AP is late-encounter with triggering factor/s for Sitagliptin in genetically-predisposed individuals.
Keywords: CT scan, diabetes mellitus, DPP-4i, metformin, pancreatitis, Sitagliptin.
Downloads
References
2. Alkayali T, Ricardo J, Busari K, Saad I. Sitagliptin-induced Pancreatitis: Chronic Use Would Not Spare You the Complication. Cureus. 2020; 12:e7389.
3. Tenner S, Baillie J, DeWitt J, Vege SS. American College of Gastroenterology guideline: management of acute pancreatitis. Am J Gastroenterol. 2013; 108:1400–1415.
4. Dominguez-Munoz JE, Malfertheiner P, Ditschuneit HH, Blanco-Chavez J, Uhl W, Buchler M, et al. Hyperlipidemia in acute pancreatitis. Relationship with etiology, onset and severity of the disease. Int J Pancreatol 1991; 10:261–267.
5. Whitcomb DC, Yadav D, Adam S, et al. North American Pancreatic Study Group. Multicenter approach to recurrent acute and chronic pancreatitis in the United States: the North American Pancreatitis Study 2 (NAPS2). Pancreatol. 2008; 8:520–531.
6. Inzucchi SE, Bergenstal RM, Buse JB, et al.; American Diabetes Association (ADA); European Association for the Study of Diabetes (EASD). Management of hyperglycemia in type 2 diabetes: a patient-centered approach: position statement of the American Diabetes Association (ADA) and the European Association for the Study of Diabetes (EASD). Diabetes Care 2012; 35:1364–1379.
7. Matveyenko AV, Dry S, Cox HI, et al. Beneficial endocrine but adverse exocrine effects of sitagliptin in the human islet amyloid polypeptide transgenic rat model of type 2 diabetes: interactions with metformin. Diabetes 2009; 58:1604–1615
8. FDA Issues Caution for Januvia and Janumet for Acute Pancreatitis. September 28, 2009.
9. “Januvia for type 2 diabetes”. Merck & Co. Archived from the original on 2012-09-07.
10. Buse JB, Bethel MA, Green JB, Stevens SR, Lokhnygina Y, Aschner P, Grado CR, Tankova T, Wainstein J, Josse R, Lachin JM, Engel SS, Patel K, Peterson ED, Holman RR; TECOS Study Group. Pancreatic Safety of Sitagliptin in the TECOS Study. Diabetes Care. 2017; 40:164-170.

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0). that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).