U.S. flag

An official website of the United States government

NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.

StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-.

Cover of StatPearls

StatPearls [Internet].

Show details

Dipeptidyl Peptidase IV (DPP IV) Inhibitors

; .

Author Information and Affiliations

Last Update: May 22, 2023.

Continuing Education Activity

Dipeptidyl peptidase 4 (DPP-4) inhibitors are a group of antihyperglycemic medications used to manage type 2 diabetes mellitus, which is a significant risk factor for coronary disease, heart failure, stroke, and many other cardiovascular conditions. This activity reviews the various drugs in this group, indications, contraindications, activity, adverse events, and other key elements of DPP-4 inhibitors therapy in the clinical setting. It also elaborates on the essential information needed by any interprofessional team member managing the care of patients with diabetes.

Objectives:

  • Identify the mechanism of action of dipeptidyl peptidase 4 (DPP-4) inhibitors.
  • Describe the potential adverse effects of dipeptidyl peptidase 4 (DPP-4) inhibitors.
  • Review the appropriate monitoring of dipeptidyl peptidase 4 (DPP-4) inhibitors.
  • Outline interprofessional team strategies for improving care coordination and communication to advance diabetes management and improve outcomes using DPP-4 inhibitors.
Access free multiple choice questions on this topic.

Indications

DPP-4 inhibitors, known as gliptins, are a class of oral diabetic medications approved by the Food and Drug Administration (FDA) to treat type 2 diabetes mellitus in adults.

DPP-4 inhibitors that have FDA approval include sitagliptin, saxagliptin, linagliptin, and alogliptin. Vildagliptin has approval from the European Medicines Agency (EMA), but not by the FDA.

These drugs act through incretin hormones, which are gut hormones responsible for glucose homeostasis after oral food intake.

Apart from antihyperglycemic effects, this class of drugs possesses antihypertensive effects, anti-inflammatory effects, antiapoptotic effects, and immunomodulatory effects on the heart, kidneys, and blood vessels independent of the incretin pathway.[1] Some studies have shown that this class of drugs could also be used in kidney and liver transplant recipients with new-onset diabetes after transplantation (NODAT) due to all these benefits.[1]

They can be used as monotherapy or add-on therapy with other medications.[2][3] Options for add-on therapy include metformin, sulfonylureas, thiazolidinediones, or insulin.[4][5][6][7][8]

Mechanism of Action

DPP-4 is a ubiquitous enzyme that acts on incretin hormones, mainly GLP-1 (glucagon-like peptide-1) and GIP (gastric inhibitory peptide), which maintain glucose homeostasis by increasing insulin secretion and decreasing glucagon secretion.[9]

GLP-1 is a hormone secreted by enteroendocrine L cells of the small intestine, which lowers blood glucose by stimulating insulin secretion, reducing glucagon concentrations, and delaying gastric emptying.[10] It has a half-life of fewer than 2 minutes.[11] GIP is a hormone secreted in the stomach and proximal small intestine by neuroendocrine K-cells. Its half-life is approximately 7 minutes in healthy individuals and 5 minutes in individuals with type 2 diabetes.[11]

These incretins are released within minutes of food intake, and DPP-4 degrades these hormones immediately due to their short half-life. By inhibiting the DPP-4 enzyme, DPP-4 inhibitors increase the levels of GLP-1 and GIP, which in turn increase beta-cell insulin secretion in the pancreas, thereby reducing postprandial and fasting hyperglycemia.[9]

Administration

All the DPP-4 inhibitors are administered orally, once daily, before or after meals.

A study of oral and intravenous administration of sitagliptin in healthy individuals demonstrated an 87% oral bioavailability.[10]

Adverse Effects

Gliptins are associated with a low incidence of adverse events, including hypoglycemia, and have weight-neutral effects. However, the risk of hypoglycemia increases when used in conjunction with sulfonylureas.[12]

The most common side effects noticed with the DPP-4 inhibitors sitagliptin and saxagliptin are upper respiratory tract infection, nasopharyngitis, headache, urinary tract infection, arthralgia.[10] There are also reports of hypersensitivity reactions such as anaphylaxis and angioedema in the prescribing information of most DPP-4 inhibitors.[13] Sitagliptin was also associated with Stevens-Johnson syndrome in postmarketing reports.[10] Reports of acute pancreatitis, including fatal and non-fatal hemorrhagic or necrotizing variants, have correlations with the use of sitagliptin, vildagliptin, and saxagliptin in postmarketing data.[13] However, a causal relationship remains unproven with the use of gliptins and pancreatitis.[14] There has also been a case series published in Japan of four patients who had acquired hemophilia A in patients using DPP-4 inhibitors.[15]

DPP-4 inhibitors (alogliptin, sitagliptin, saxagliptin, linagliptin) did not show an increased risk of cardiovascular death, non-fatal myocardial infarction, or non-fatal stroke when compared to placebo in patients with type 2 diabetes, although saxagliptin had an association with an increased rate of hospitalization for heart failure.[16][17][18][19]

Contraindications

Contraindications to gliptins include type 1 diabetes and diabetic ketoacidosis. Sitagliptin is contraindicated in individuals who are sensitive to the drug or its components. Caution is necessary when using gliptins in patients with a history of pancreatitis; it would be reasonable to discontinue these drugs if pancreatitis is suspected.[10]

Dose adjustments are necessary for patients with renal insufficiency taking sitagliptin and saxagliptin as these drugs undergo renal excretion; failure to adjust the dose could increase the chance of hypoglycemia.[10]

Monitoring

DPP-4 inhibitors have minimal to no interactions with other drugs because of their pharmacokinetic properties, the exception being saxagliptin. Saxagliptin is metabolized to its active form by CYP3A4/5; hence the levels of the drug and its active metabolite might be modified when administered along with drugs affecting CYP3A4/5 isoforms such as ketoconazole, diltiazem (inhibitors of CYP3A4/5), or rifampicin (inducer of CYP3A4/5). Dose adjustments of saxagliptin may be necessary for such instances.[20]

The package insert of sitagliptin mentions the need for close monitoring when using in conjunction with digoxin as the former causes a small increase (11%) in the area under the curve (AUC) and plasma Cmax (18%) of digoxin. However, dose adjustment is not a recommendation. The patient's renal function requires monitoring after initiating therapy with either sitagliptin or saxagliptin in addition to glycemic control.[10]

Toxicity

Clinical trials showed no adverse drug reactions using very high doses of saxagliptin, alogliptin, linagliptin. However, high doses of sitagliptin were associated with an 8.0-millisecond mean increase in QTc in controlled clinical trials as labeled by the FDA. In case of overdose, hemodialysis removes approximately 13% of sitagliptin and approximately 23% of saxagliptin but did not affect alogliptin or linagliptin.

Enhancing Healthcare Team Outcomes

An interprofessional team approach is critical in controlling diabetes and its complications. It requires providers (primary care physician, endocrinologist, ophthalmologist, podiatrist), pharmacists, nurse practitioners, dieticians, and diabetes educator nurses to collaborate as an interprofessional team in providing care. Literature indicates that such a collaborative effect can improve diabetic management, lower the risk of chronic disease complications. [Level 5]

  • Health care providers can emphasize the importance of metabolic control and other cardiovascular risk factors, promote healthy lifestyle practices, including physical activity and healthful eating, and explain the benefits of comprehensive team care.
  • Diabetes nurse educators and dieticians provide education to the patient in improving the patient's weight loss and A1c values with ideal diet and nutrition.
  • Pharmacists can collaborate with patients and their physicians to improve clinical measures, lower health care costs, and making sure that the drugs are in an affordable range to the patient by communicating with the patient's insurance companies.
  • Recognizing danger signs of foot and eye problems and referral to an appropriate provider can be done by any team member. Various health care providers can obtain a referral for regular screening.
  • Specialist providers such as podiatrists, ophthalmologists can help reduce lower extremity amputation rates in foot care clinics, prevent blindness, respectively.

National Diabetes Education Program (NDEP), a federally sponsored initiative of the National Institutes of Diabetes and Digestive and Kidney Diseases (NIDDK), is committed to working with public and private partners in preventing or delaying the onset of type 2 diabetes, promoting early diagnosis, improve treatment and outcomes for people with diabetes. It also offers resources to help healthcare professionals implement collaborative, interprofessional diabetes team care in a variety of settings.

Review Questions

References

1.
Lim SW, Jin JZ, Jin L, Jin J, Li C. Role of dipeptidyl peptidase-4 inhibitors in new-onset diabetes after transplantation. Korean J Intern Med. 2015 Nov;30(6):759-70. [PMC free article: PMC4642005] [PubMed: 26552451]
2.
Charbonnel B, Karasik A, Liu J, Wu M, Meininger G., Sitagliptin Study 020 Group. Efficacy and safety of the dipeptidyl peptidase-4 inhibitor sitagliptin added to ongoing metformin therapy in patients with type 2 diabetes inadequately controlled with metformin alone. Diabetes Care. 2006 Dec;29(12):2638-43. [PubMed: 17130197]
3.
Bosi E, Camisasca RP, Collober C, Rochotte E, Garber AJ. Effects of vildagliptin on glucose control over 24 weeks in patients with type 2 diabetes inadequately controlled with metformin. Diabetes Care. 2007 Apr;30(4):890-5. [PubMed: 17277036]
4.
DeFronzo RA, Hissa MN, Garber AJ, Luiz Gross J, Yuyan Duan R, Ravichandran S, Chen RS., Saxagliptin 014 Study Group. The efficacy and safety of saxagliptin when added to metformin therapy in patients with inadequately controlled type 2 diabetes with metformin alone. Diabetes Care. 2009 Sep;32(9):1649-55. [PMC free article: PMC2732156] [PubMed: 19478198]
5.
Hermansen K, Kipnes M, Luo E, Fanurik D, Khatami H, Stein P., Sitagliptin Study 035 Group. Efficacy and safety of the dipeptidyl peptidase-4 inhibitor, sitagliptin, in patients with type 2 diabetes mellitus inadequately controlled on glimepiride alone or on glimepiride and metformin. Diabetes Obes Metab. 2007 Sep;9(5):733-45. [PubMed: 17593236]
6.
Rosenstock J, Brazg R, Andryuk PJ, Lu K, Stein P., Sitagliptin Study 019 Group. Efficacy and safety of the dipeptidyl peptidase-4 inhibitor sitagliptin added to ongoing pioglitazone therapy in patients with type 2 diabetes: a 24-week, multicenter, randomized, double-blind, placebo-controlled, parallel-group study. Clin Ther. 2006 Oct;28(10):1556-68. [PubMed: 17157112]
7.
Garber AJ, Schweizer A, Baron MA, Rochotte E, Dejager S. Vildagliptin in combination with pioglitazone improves glycaemic control in patients with type 2 diabetes failing thiazolidinedione monotherapy: a randomized, placebo-controlled study. Diabetes Obes Metab. 2007 Mar;9(2):166-74. [PubMed: 17300592]
8.
Fonseca V, Schweizer A, Albrecht D, Baron MA, Chang I, Dejager S. Addition of vildagliptin to insulin improves glycaemic control in type 2 diabetes. Diabetologia. 2007 Jun;50(6):1148-55. [PubMed: 17387446]
9.
Capuano A, Sportiello L, Maiorino MI, Rossi F, Giugliano D, Esposito K. Dipeptidyl peptidase-4 inhibitors in type 2 diabetes therapy--focus on alogliptin. Drug Des Devel Ther. 2013;7:989-1001. [PMC free article: PMC3782406] [PubMed: 24068868]
10.
Pathak R, Bridgeman MB. Dipeptidyl Peptidase-4 (DPP-4) Inhibitors In the Management of Diabetes. P T. 2010 Sep;35(9):509-13. [PMC free article: PMC2957740] [PubMed: 20975810]
11.
Gupta V, Kalra S. Choosing a gliptin. Indian J Endocrinol Metab. 2011 Oct;15(4):298-308. [PMC free article: PMC3193779] [PubMed: 22029001]
12.
Salvo F, Moore N, Arnaud M, Robinson P, Raschi E, De Ponti F, Bégaud B, Pariente A. Addition of dipeptidyl peptidase-4 inhibitors to sulphonylureas and risk of hypoglycaemia: systematic review and meta-analysis. BMJ. 2016 May 03;353:i2231. [PMC free article: PMC4854021] [PubMed: 27142267]
13.
Karagiannis T, Boura P, Tsapas A. Safety of dipeptidyl peptidase 4 inhibitors: a perspective review. Ther Adv Drug Saf. 2014 Jun;5(3):138-46. [PMC free article: PMC4110853] [PubMed: 25083269]
14.
Montilla S, Marchesini G, Sammarco A, Trotta MP, Siviero PD, Tomino C, Melchiorri D, Pani L., AIFA Anti-diabetics Monitoring Group. Drug utilization, safety, and effectiveness of exenatide, sitagliptin, and vildagliptin for type 2 diabetes in the real world: data from the Italian AIFA Anti-diabetics Monitoring Registry. Nutr Metab Cardiovasc Dis. 2014 Dec;24(12):1346-53. [PubMed: 25300980]
15.
Yamasaki S, Kadowaki M, Jiromaru T, Takase K, Iwasaki H. Acquired Hemophilia A Associated with Dipeptidyl Peptidase-4 Inhibitors for the Treatment of Type 2 Diabetes Mellitus: A Single-Center Case Series in Japan. Diabetes Ther. 2019 Jun;10(3):1139-1143. [PMC free article: PMC6531581] [PubMed: 30927215]
16.
Green JB, Bethel MA, Armstrong PW, Buse JB, Engel SS, Garg J, Josse R, Kaufman KD, Koglin J, Korn S, Lachin JM, McGuire DK, Pencina MJ, Standl E, Stein PP, Suryawanshi S, Van de Werf F, Peterson ED, Holman RR., TECOS Study Group. Effect of Sitagliptin on Cardiovascular Outcomes in Type 2 Diabetes. N Engl J Med. 2015 Jul 16;373(3):232-42. [PubMed: 26052984]
17.
Rosenstock J, Perkovic V, Johansen OE, Cooper ME, Kahn SE, Marx N, Alexander JH, Pencina M, Toto RD, Wanner C, Zinman B, Woerle HJ, Baanstra D, Pfarr E, Schnaidt S, Meinicke T, George JT, von Eynatten M, McGuire DK., CARMELINA Investigators. Effect of Linagliptin vs Placebo on Major Cardiovascular Events in Adults With Type 2 Diabetes and High Cardiovascular and Renal Risk: The CARMELINA Randomized Clinical Trial. JAMA. 2019 Jan 01;321(1):69-79. [PMC free article: PMC6583576] [PubMed: 30418475]
18.
White WB, Cannon CP, Heller SR, Nissen SE, Bergenstal RM, Bakris GL, Perez AT, Fleck PR, Mehta CR, Kupfer S, Wilson C, Cushman WC, Zannad F., EXAMINE Investigators. Alogliptin after acute coronary syndrome in patients with type 2 diabetes. N Engl J Med. 2013 Oct 03;369(14):1327-35. [PubMed: 23992602]
19.
Scirica BM, Bhatt DL, Braunwald E, Steg PG, Davidson J, Hirshberg B, Ohman P, Frederich R, Wiviott SD, Hoffman EB, Cavender MA, Udell JA, Desai NR, Mosenzon O, McGuire DK, Ray KK, Leiter LA, Raz I., SAVOR-TIMI 53 Steering Committee and Investigators. Saxagliptin and cardiovascular outcomes in patients with type 2 diabetes mellitus. N Engl J Med. 2013 Oct 03;369(14):1317-26. [PubMed: 23992601]
20.
Scheen AJ. Dipeptidylpeptidase-4 inhibitors (gliptins): focus on drug-drug interactions. Clin Pharmacokinet. 2010 Sep;49(9):573-88. [PubMed: 20690781]

Disclosure: Srinivasa Venkata Siva Kumar Kasina declares no relevant financial relationships with ineligible companies.

Disclosure: Krishna Baradhi declares no relevant financial relationships with ineligible companies.

Copyright © 2024, StatPearls Publishing LLC.

This book is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ), which permits others to distribute the work, provided that the article is not altered or used commercially. You are not required to obtain permission to distribute this article, provided that you credit the author and journal.

Bookshelf ID: NBK542331PMID: 31194471

Views

  • PubReader
  • Print View
  • Cite this Page

Related information

  • PMC
    PubMed Central citations
  • PubMed
    Links to PubMed

Similar articles in PubMed

See reviews...See all...

Recent Activity

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

See more...