Experimental Treatments for Type 2 Diabetes

Lifestyle changes such as eating a diabetes-friendly diet, exercising more, and maintaining a healthy body weight combined with existing treatment options are the best way to prevent or manage type 2 diabetes.

However, for people with type 2 diabetes who have trouble controlling their blood sugar by making healthier lifestyle choices or taking medications, experimental treatments could help.

This article provides an overview of type 2 diabetes experimental treatments and explains how the latest type 2 diabetes research has led to new Food and Drug Administration (FDA)–approved pharmacological treatments and devices like the "artificial pancreas."

Read on to learn more about other experimental treatments for type 2 diabetes that show promise but haven't been approved by the FDA yet.

Man getting blood tested

fotograzia / Getty Images

Pharmacological Treatments

Only about half of all U.S. adults with type 2 diabetes achieve good blood sugar level targets based on the A1c test, a simple blood test measuring blood sugar levels averaged over the past three months.

Fortunately, advances in type 2 diabetes research have led to some groundbreaking experimental treatments and drug combinations that show promise in preliminary studies.

Mounjaro (Tirzepatide)

The latest pharmacological treatment approved by the FDA for type 2 diabetes combines glucagon-like peptide-1 (GLP-1) agonists and glucose-dependent insulinotropic polypeptides (GIP).

In May 2022, the FDA approved the novel type 2 diabetes injectable medication called Mounjaro (tirzepatide). Mounjaro is the first and only FDA-approved dual GIP and GLP-1 agonist medication for type 2 diabetes.

Glifozins

Sodium-glucose cotransporter-2 (SGLT2) inhibitors, also known as a glifozins, are another state-of-the-art class of drugs approved by the FDA to lower blood sugar in adults with type 2 diabetes. SGLT2 inhibitors are prescribed along with lifestyle changes like diet and exercise. Glifozins are not FDA-approved for patients with type 1 diabetes.

Accumulating evidence suggests that SGLT2 inhibitors have other health benefits such as promoting weight loss and improving cardiac functions. A meta-analysis (a formal assessment of previous research) of 10 clinical trials found that the use of SGLT2 inhibitors was associated with a 33% lower risk of life-threatening cardiovascular disease.

Wegovy (Semaglutide)

In June 2021, the FDA approved Wegovy, a weight-loss prescription drug, for people diagnosed with obesity and a weight-related condition such as high blood pressure or high cholesterol. In September 2022, researchers announced that weekly injections of this drug may reduce the risk of type 2 diabetes risk by 61%.

Tesaglitazar

Tesaglitazar is an experimental drug that showed promise as a treatment for type 2 diabetes in early studies. However, its development was put on hold by AstraZeneca in May 2006 before all of the phase 3 trials were completed. But this experimental treatment might be making a comeback.

In August 2022, a study in mice showed that combining tesaglitazar with GLP-1 agonists reduced the drug's adverse effects while increasing its positive effects on sugar metabolism. Still, human studies are needed.

Special Dietary and Nutritional Treatments

Eating a diet to help type 2 diabetes is one of the most effective ways for people with type 2 diabetes to control blood sugar. If you have diabetes, it's important to educate yourself about different types of carbohydrates and to monitor your blood sugar levels using a glucometer.

Research on supplements for type 2 diabetes has had mixed results. After years of research, a study of 2,423 people concluded that vitamin D supplements don't prevent type 2 diabetes and may not have long-term benefits. That said, a 2019 meta-analysis of other peer-reviewed studies concluded that vitamin D supplements may help people with type 2 diabetes control their blood sugar levels in the short term.

Over-the-counter (OTC) nutritional supplements that lower blood sugar can carry potential risks and are not intended to replace diabetes medications. Always use common sense and speak with a healthcare provider before making dietary changes or using nutritional supplements.

Artificial Pancreas

The "artificial pancreas" is a portable external device that controls blood glucose levels using a closed-loop insulin pump system. A 2021 study found that closed-loop artificial pancreas therapy helped people with type 2 diabetes safely manage their blood sugar levels and reduced the risk of severe hypoglycemia (low blood sugar) events.

Bariatric Surgery for Type 2 Diabetes

Bariatric weight-loss surgery is an effective treatment for many people with type 2 diabetes. Among bariatric procedures, a 2019 randomized trial found that gastric bypass surgery (creating and attaching a small pouch directly to the small intestine, bypassing the stomach) is superior to gastric sleeve surgery (removing a portion of the stomach) for remission of type 2 diabetes.

Pancreas Transplant

Although a pancreas transplant can benefit people with type 1 diabetes by restoring insulin production and improving blood sugar control, it's an extreme measure and isn't typically a treatment option for those with type 2 diabetes.

However, in certain patients with type 2 diabetes who have both a low production of insulin (hormone created by your pancreas that controls the sugar in your bloodstream) and insulin resistance (when cells stop responding to the insulin you make), a pancreas transplant may be considered.

However, the United Network for Organ Sharing (UNOS) eligibility criteria strictly limit access to pancreas transplantation in patients with type 2 diabetes.

Islet Transplant Surgery for Diabetics

Islet cell transplantation is a treatment option for some patients with type 1 diabetes but isn't currently an FDA-approved option for those with type 2 diabetes.

Summary

Diabetes research has led to some groundbreaking new treatment options. In May 2022, the FDA approved a potentially game-changing new drug called Mounjaro (tirzepatide) that targets both GLP-1 and GIP. In September 2022, researchers announced that another experimental drug, tesaglitazar, which didn't initially succeed in clinical trials, shows renewed promise when combined with a GLP-1 antagonist.

Other new treatments, like SGLT2 inhibitors, are effective for type 2 diabetes when combined with lifestyle changes related to diet and exercise. For people who have trouble losing weight, bariatric surgery and weight-loss drugs like Wegovy (semaglutide) can help people maintain a healthy weight and lower their risk of type 2 diabetes.

Experimental treatments for type 2 diabetes carry risks. Always speak to a healthcare provider before making changes to your diet or taking nutritional supplements.

Frequently Asked Questions

  • Is there a cure for type 2 diabetes?

    No. There is no cure for type 2 diabetes. Losing weight, eating healthier, and exercising more can help to prevent and manage this type 2 diabetes. If diet, exercise, and weight loss fail to control blood sugar, antidiabetic medications or insulin therapy can help achieve glycemic targets.

  • What can a person with diabetes take instead of metformin?

    If you have diabetes and want to take something other than metformin, speak to a healthcare provider about your options. Some alternatives to metformin that people with type 2 diabetes can use to control high blood sugar include, Farxiga (dapagliflozin), Invokana (canagliflozin), Jardiance (empagliflozin), and Nesina (alogliptin).

  • Are there vitamins that help with diabetes?

    There's little to no evidence-based research showing that specific vitamins are helpful to people with diabetes in the long term. Vitamin D may help people with diabetes in the short term, but a yearslong National Institutes of Health–funded trial ultimately found that vitamin D supplements do not prevent type 2 diabetes.

25 Sources
Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. ElSayed NA, Aleppo G, Aroda VR, et al. 5. Facilitating positive health behaviors and well-being to improve health outcomes: Standards of care in diabetes—2023. Diabetes Care. 2023;46(Suppl 1):S68-S96. doi:10.2337/dc23-S005

  2. Carls G, Huynh J, Tuttle E, Yee J, Edelman SV. Achievement of glycated hemoglobin goals in the us remains unchanged through 2014. Diabetes Ther. 2017;8(4):863-873. doi:10.1007/s13300-017-0280-5

  3. ElSayed NA, Aleppo G, Aroda VR, et al. 9. Pharmacologic approaches to glycemic treatment: Standards of care in diabetes—2023. Diabetes Care. 2023;46(Suppl 1):S140-S157. doi:10.2337/dc23-S009

  4. Gasbjerg LS, Gabe MBN, Hartmann B, et al. Glucose-dependent insulinotropic polypeptide (GIP) receptor antagonists as anti-diabetic agents. Peptides. 2018;100:173-181. doi:10.1016/j.peptides.2017.11.021

  5. Food and Drug Administration. MOUNJAROTM (tirzepatide) injection, for subcutaneous use [drug label].

  6. FDA. Sodium-glucose Cotransporter-2 (SGLT2) Inhibitors.

  7. Pharmacy Practice News. Evidence mounts for benefits of SGLT2 inhibitors and GLP-1 RAs.

  8. Bhattarai M, Salih M, Regmi M, et al. Association of sodium-glucose cotransporter 2 inhibitors with cardiovascular outcomes in patients with type 2 diabetes and other risk factors for cardiovascular disease: a meta-analysis. JAMA Netw Open. 2022;5(1):e2142078. doi:10.1001/jamanetworkopen.2021.42078

  9. FDA. FDA Approves New Drug Treatment for Chronic Weight Management, First Since 2014.

  10. UAB News. Who will benefit from new ‘game-changing’ weight-loss drug semaglutide?

  11. Hellmold H, Zhang H, Andersson U, et al. Tesaglitazar, a pparα/γ agonist, induces interstitial mesenchymal cell dna synthesis and fibrosarcomas in subcutaneous tissues in ratsToxicological Sciences. 2007;98(1):63-74. doi:10.1093/toxsci/kfm094

  12. Quarta C, Stemmer K, Novikoff A, et al. GLP-1-mediated delivery of tesaglitazar improves obesity and glucose metabolism in male miceNat Metab. 2022;4(8):1071-1083. doi:10.1038/s42255-022-00617-6

  13. Tufts Medical Center. D2d (Vitamin D and Type 2 Diabetes) results.

  14. Hu Z, Chen J, Sun X, Wang L, Wang A. Efficacy of vitamin D supplementation on glycemic control in type 2 diabetes patients: A meta-analysis of interventional studiesMedicine. 2019;98(14):e14970. doi:10.1097/MD.0000000000014970

  15. Zhou K, Isaacs D. Closed-loop artificial pancreas therapy for type 1 diabetesCurr Cardiol Rep. 2022;24(9):1159-1167. doi:10.1007/s11886-022-01733-1

  16. Boughton CK, Tripyla A, Hartnell S, et al. Fully automated closed-loop glucose control compared with standard insulin therapy in adults with type 2 diabetes requiring dialysis: An open-label, randomized crossover trial. Nat Med. 2021;27(8):1471-1476. doi:0.1038/s41591-021-01453-z

  17. ElSayed NA, Aleppo G, Aroda VR, et al. 8. Obesity and weight management for the prevention and treatment of type 2 diabetes: Standards of care in diabetes—2023. Diabetes Care. 2023;46(Suppl 1):S128-S139. doi:10.2337/dc23-S008

  18. Hofsø D, Fatima F, Borgeraas H, et al. Gastric bypass versus sleeve gastrectomy in patients with type 2 diabetes (Oseberg): A single-centre, triple-blind, randomised controlled trial.The Lancet Diabetes & Endocrinology. 2019;7(12):912-924. doi:10.1016/S2213-8587(19)30344-4

  19. Kandaswamy R, Stock PG, Gustafson SK, et al. Optn/srtr 2016 annual data report: PancreasAm J Transplant. 2018;18:114-171. doi:10.1111/ajt.14558

  20. Bleskestad KB, Nordheim E, Lindahl JP, et al. Insulin secretion and action after pancreas transplantation. A retrospective single-center study. Scandinavian Journal of Clinical and Laboratory Investigation. 2021;81(5):365-370. doi:10.1080/00365513.2021.1926535

  21. Stratta RJ, Farney AC, Fridell JA. Analyzing outcomes following pancreas transplantation: Definition of a failure or failure of a definition. American J Transplantation. 2022;22(6):1523-1526. doi:10.1111/ajt.17003

  22. Pullen LC. Islet cell transplantation hits a milestone. Am J Transplant. 2021;21(8):2625-2626. doi:10.1111/ajt.16039

  23. ElSayed NA, Aleppo G, Aroda VR, et al. 9. Pharmacologic approaches to glycemic treatment: Standards of care in diabetes—2023. Diabetes Care. 2023;46(Suppl 1):S140-S157. doi:10.2337/dc23-S009

  24. diaTribe Learn. What are my choices for metformin alternatives?

  25. NIH. NIH-funded trial finds vitamin D does not prevent type 2 diabetes in people at high risk.

By Christopher Bergland
Christopher Bergland is a retired ultra-endurance athlete turned medical writer and science reporter.