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American Journal of Public Health Research
DOI: 10.12691/ajphr-1-1-3

The Implementation of a Tele-Homecare System with Service Oriented Architecture and HL7 Message Transmission Standard
Ching-Sung Wang

American Journal of Medical and Biological Research
DOI: 10.12691/ajmbr-1-1-2

The Influence of Ethanol on Pyruvate Kinases Activity in Vivo, in Vitro, in Silico
Lelevich Sergey Vladimirovich, Khrustalev Vladislav Victorovich, Barkovsky Eugene Victorovich, Shedogubova Tatyana Aleksandrovna

American Journal of Medical Sciences and Medicine
DOI: 10.12691/ajmsm-1-1-1

Clinical and Histological Features in Wegener Granulomatosis
Li Cavoli Gioacchino, Passantino Rita, Bono Luisa, Tortorici Calogera, Ferrantelli Angelo, Giammarresi Carlo, Rotolo Ugo

American Journal of Infectious Diseases and Microbiology
DOI: 10.12691/ajidm-1-1-2

The Curse of Lymphatic Filariasis: Would the Continual Use of Diethylcarbamazine Eliminate this Scourge in Papua New Guinea?
Anne Lanham, Lillian Mwanri

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Dear Label_Name,

Greetings! I hope you are well.

I am writing on behalf of an international publishing house, Science and Education Publishing, USA (http://www.sciepub.com).

Science and Education Publishing (SciEP) is a multidisciplinary open access publisher of Journals covering the fields of Science, Technology and Medicine. All SciEP publications are subject to high-quality peer review, editorial and production processes and are freely available online.

Welcome to the April, 2013 edition of SciEP newsletter, providing monthly summaries of articles on science & education related topics of interest to scientist and professionals. The mission of our journals is to provide an open access forum for publishing new findings on issues pertinent to scientific and academic field. We also invite you to submit original research papers, review articles, short reports, or case studies are considered for publication in our Multidisciplinary Journals.

American Journal of Public Health Research
DOI: 10.12691/ajphr-1-1-3

The Implementation of a Tele-Homecare System with Service Oriented Architecture and HL7 Message Transmission Standard
Ching-Sung Wang

American Journal of Medical and Biological Research
DOI: 10.12691/ajmbr-1-1-2

The Influence of Ethanol on Pyruvate Kinases Activity in Vivo, in Vitro, in Silico
Lelevich Sergey Vladimirovich, Khrustalev Vladislav Victorovich, Barkovsky Eugene Victorovich, Shedogubova Tatyana Aleksandrovna

American Journal of Medical Sciences and Medicine
DOI: 10.12691/ajmsm-1-1-1

Clinical and Histological Features in Wegener Granulomatosis
Li Cavoli Gioacchino, Passantino Rita, Bono Luisa, Tortorici Calogera, Ferrantelli Angelo, Giammarresi Carlo, Rotolo Ugo

American Journal of Infectious Diseases and Microbiology
DOI: 10.12691/ajidm-1-1-2

The Curse of Lymphatic Filariasis: Would the Continual Use of Diethylcarbamazine Eliminate this Scourge in Papua New Guinea?
Anne Lanham, Lillian Mwanri

We have released issues of some journals on February 2013.
American Journal of Public Health Research
American Journal of Medical Sciences and Medicine
American Journal of Medical and Biological Research
American Journal of Pharmacological Sciences
American Journal of Clinical Medicine Research
American Journal of Nursing Research
American Journal of Cancer Prevention
American Journal of Medicine Studies
American Journal of Infectious Diseases and Microbiology
American Journal of Cardiovascular Disease Research
American Journal of Biomedical Research
American Journal of Mechanical Engineering
American Journal of Microbiological Research
Journal of Preventive Medicine
American Journal of Food and Nutrition
American Journal of Hypertension Research
American Journal of Sports Science and Medicine
Journal of Cancer Research and Treatment
American Journal of Zoological Research
Journal of Biomedical Engineering and Technology
American Journal of Microbiological Research
Biomedical Science and Engineering

We are pleased to announce that submissions are now being accepted for peer review for all the journals across all our subject areas in SciEP.

Please submit your manuscript via our online submission system:
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Adverse Effects of Multi-drug Diabetes Regimens: Case Report of Acute Pancreatitis and Diabetic Ketoacidosis

Emma Barry, Vivian Zhang*, Lyn Dea

Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, USA

Abstract: Options for treating type 2 diabetes mellitus have evolved in the last few decades with the introduction of glucagon-like-peptide 1 (GLP-1) agonists and dipeptidyl peptidase (DPP-4) inhibitors. These medications are known to slow gastric emptying and have proven to be an effective alternative to insulin in the treatment of diabetes. Newer drugs such as SGLT-2 inhibitors and cardioprotective drugs contribute additional benefit in the management of diabetes. While there have been reports of the side effects associated with individual medications, there is less research on the combined effects of a complete medication regimen. This case describes a patient who developed acute pancreatitis and subsequent diabetic ketoacidosis following major changes to her diabetes medications, including the addition of a DPP-4 inhibitor and dosage increase of a GLP-1 agonist to her existing regimen of an SGLT-2 inhibitor. Therefore, we propose the need for further research into the consequences of prescribing a combination of medications for the treatment of type 2 diabetes.

Keywords: case report, diabetes, multi-drug, adverse effects, pancreatitis, diabetic ketoacidosis

Received August 02, 2024; Revised September 04, 2024; Accepted September 10, 2024

Citation: Emma Barry, Vivian Zhang, Lyn Dea, Adverse Effects of Multi-drug Diabetes Regimens: Case Report of Acute Pancreatitis and Diabetic Ketoacidosis. American Journal of Medical Case Reports, 12 (8). 131-133. January 2024. doi:10.12691/ajmcr-12-8-7

1. Introduction

Diabetes mellitus management has undergone significant evolution since the discovery of insulin in the 1920s, which became a life-saving medication for people with type 1 diabetes [1]. Afterwards, the widespread use of oral medication followed, and options included sulfonylureas, which act by increasing insulin production from the pancreas, and metformin [2]. The most groundbreaking breakthrough in diabetes management, however, has been the development of GLP-1 and DPP-4 inhibitors. These medications have been proven to improve glycemic control and lower the risk of hypoglycemia, making them preferable [3,4]. Additionally, SGLT-2 inhibitors, introduced in the 2010s, have not only shown benefit in the treatment of diabetes but have also proven to be cardioprotective with an established mortality benefit [5]. The simultaneous usage of a GLP-1 agonist, DPP-4 inhibitor, and SGLT-2 inhibitor in the management of type 2 diabetes may increase the risk of diabetic ketoacidosis (DKA) crisis. We describe a case of DKA in the setting of combined GLP-1, DPP-4 and SGLT-2 use, portraying the need for caution and further research when prescribing a combination treatment regimen for diabetes.

2. Case Report

A 40-year-old female with a history of type 2 diabetes and hypertriglyceridemia presented to the emergency department (ED) with symptoms of altered mental status, nausea, and vomiting. The symptoms began 2 nights before her arrival at the ED. On presentation, her vitals were as follows: temperature (36.8°C), heart rate (110 bpm), respiratory rate (25 bpm), blood pressure (92/71 mmHg), and oxygen saturation (99%). Initial pertinent laboratory values showed hyperglycemia (glucose level of 436 mg/dL), an anion gap (34 mmol/L), metabolic acidosis (serum bicarbonate of 6 mmol/L), elevated lipase (2220 U/L), elevated creatinine (1.96mg/dL), a leukocytosis (WBC of 22.6 x 10³/mcL) and a urinalysis positive for ketones. The patient’s vital signs and the rest of her laboratory parameters are also summarized in Table 1.

The patient was admitted to the intensive care unit (ICU) for diabetic ketoacidosis (DKA). She was started on the DKA protocol, which included the use of intravenous fluids and high dose sliding-scale insulin. Computed tomography of the abdomen/pelvis (CTA/P) without contrast did not reveal any pancreatitis or acute abdominal process. On physical exam, abdomen was non-tender, even with deep palpation, therefore no abdominal ultrasound (US) was obtained. Additionally, no infection source was identified, as her work-up included a negative urinalysis, clear chest x-ray, and unremarkable procalcitonin level. The patient was discharged 3 days later. Her acute pancreatitis, encephalopathy, and DKA had resolved. She was discharged home on Lantus (long-acting insulin) with sliding scale coverage. On discharge, the GLP-1 agonist (Tirzepatide) and DPP-4 inhibitor (Sitagliptin-metformin) were discontinued. It was recommended she follow up with her primary care doctor and endocrinologist.

Table 1. Patient vitals and laboratory parameters in the emergency department

Prior to admission, at her last visit with her PCP, her hemoglobin A1c was 10.1 and her serum blood glucose was 340. She had never had a previous episode of DKA. Before presenting to the ED, she had been on the GLP-1 agonist (Tirzepatide) 10mg and SGLT-2 inhibitor (Empagliflozin) 25mg for the past 4 months. A DDP-4 inhibitor combination drug (Sitagliptin/Metformin) HCL 50-1000 MG was added to her medication regimen 10 days before she presented to the ED. Additionally, her dose of GLP-1 agonist had just been increased from 10mg to 12.5mg, 10 days before.

When she presented to her primary care doctor’s office 5 days after discharge, the SGLT-2 inhibitor was also discontinued. The patient’s other home medications included: Atorvastatin 10mg, Fluoxetine 20mg, Norgestimate-eth estradiol (28 PO), Sumatriptan 10mg as needed and Izatriptan 10mg as needed.

3. Discussion

This case report demonstrates a clinically adverse event experienced by a patient after the recent change to a multi-drug regimen of a GLP-1 agonist, DPP-4 inhibitor, and SGLT-2 inhibitor for diabetes management, any of which could have precipitated the development of acute pancreatitis and DKA.

Pancreatitis is characterized by inflammation of the pancreas, a gland located in the retroperitoneum that is of vital importance in the digestion of ingested food and in the reduction of blood glucose levels. There are several causes of pancreatitis, with the two most common being gallstones and alcohol consumption. However, other causes of pancreatitis include genetic factors and hypertriglyceridemia, which is common in patients with type 2 diabetes [6]. DKA, on the other hand, is an urgent complication of diabetes marked by the presence of ketones in the serum that is usually due to a severe lack of insulin. Other causes include any acute trauma or infections, such as in the case of acute pancreatitis.

There has been previous evidence in the literature suggesting an association between acute pancreatitis and the use of newer type 2 diabetes medications. DPP-4-inhibitors primarily act by inhibiting the action of dipeptidyl peptidase-4 (DPP-4), an enzyme present in the kidneys, intestines and bone marrow that is responsible for the activation of glucagon-like peptide-1 (GLP-1). GLP-1 is an incretin hormone involved in the stimulation of insulin synthesis and inhibition of glucagon release. It also serves to improve satiety and slow gastric emptying. Considering how the mechanisms of action of both GLP-1 agonists and DPP-4 inhibitors are interrelated, their physiologic effects may be compounded [7]. DPP-4 inhibitors have been associated with headaches, upper respiratory tract infections and acute pancreatitis [8]. A meta-analysis that assessed the risk of both pancreatic cancer and acute pancreatitis in association with DPP-4 inhibitors showed that there were 64 events of acute pancreatitis in the DPP-4 group compared to 39 events in the control group [9]. Additionally, a recent Cochrane review that only included placebo-controlled trials found that DPP-4 inhibitors significantly increased the risk of pancreatitis compared to placebo [10]. Some of the common side effects of GLP-1 agonists include nausea, vomiting and diarrhea [7]. However, GLP-1 agonists have also been known to have an association with pancreatitis. A recent study that used the FDA adverse event reporting system database found that 70.2 % of pancreatitis reports were linked to GLP-1 agonists compared to other hypoglycemic agents [11]. Additionally, several case reports continue to demonstrate a causal relationship between GLP-1 agonists and pancreatitis [12,13]. On the other hand, SGLT-2 inhibitors are a class of medication that work by inhibiting the action of sodium/glucose cotransporter-2 (SGLT-2), a protein responsible for the reabsorption of glucose in the kidneys [5]. Likewise, there are several reports of acute pancreatitis associated with the recent addition of SGLT-2 inhibitors to a patient’s medication regimen [14,15,16].

The literature illustrates that there has long been data showing a potential association between these medications (DPP-4 inhibitors, GLP-1 agonists, SGLT-2 inhibitors) and pancreatitis. However, to our knowledge, there has been much less research into the combined effects of these medications, and whether they significantly increase the risk of developing acute pancreatitis and subsequently, diabetic ketoacidosis.

After the recent addition of a DPP-4 inhibitor to the treatment regimen and an increase in dose of the GLP-1 agonist, our patient was on all three diabetes medications before developing acute pancreatitis and subsequent diabetic ketoacidosis. There has been previous documentation in the literature of acute pancreatitis as a cause of DKA. Recent studies have found that severe episodes of DKA with significant acidosis and hyperlipidemia are more likely to be linked with acute pancreatitis [17,18]. In another case, a patient was recently diagnosed with hyperlipidemia and diabetes before subsequently developing acute pancreatitis and DKA [19]. There are also cases that have highlighted diabetic coma as a result of acute pancreatitis while observing that several of these patients did not have underlying diabetes [17]. While in this case report, no challenge or rechallenge test was performed, considering the temporal relationship of her symptoms to the recent change in her medications, this case strongly suggests a possible correlational link between the combination of these drugs and the etiology of pancreatitis, leading to her serious complications of hospitalization.

Although the adverse effects of DPP-4 inhibitors, GLP-1 agonists, and SGLT-2 inhibitors have been studied individually, it is crucial to consider the composite consequences of these side effects in a combination drug regimen. Thus, further research is needed to guide clinical management on any contraindications to the combined use of these medications, and at what specific doses these medications can simultaneously be prescribed.

References

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[2]   | White, J. R. A Brief History of the Development of Diabetes Medications. Diabetes Spectrum 27, 82–86 (2014).
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