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Onglyza and Kombiglyze XR Lawsuits

Onglyza and Kombiglyze XR lawsuits blame the drugs for causing cardiac injuries. In February 2018, a federal panel consolidated cases against Bristol-Myers Squibb and AstraZeneca in federal court in Kentucky.

People suing Bristol-Myers Squibb and AstraZeneca over Onglyza (saxagliptin) and Kombiglyze XR (saxagliptin and metformin HCI extended release) allege these drugs caused serious cardiac complications and sometimes death.

Bristol-Myers Squibb and AstraZeneca ignored patient safety and began selling Onglyza and Kombiglyze XR in 2009 and 2010 before completing a study recommended by the U.S. Food and Drug Administration to assess cardiac risks in the Type 2 diabetes drugs, according to lawsuits.

After the companies finally conducted the study and found the drugs increased the risk of heart failure, the FDA released a Drug Safety Communication on April 5, 2016, to warn the public about the risk. But the warning may have come too late for hundreds of thousands of patients already taking the drugs for years. According to the FDA, about 386,000 people took the drugs in 2015 alone.

“At no time during the development of its Saxagliptin drugs did Defendants perform adequate studies to determine if their drug … may cause increased risks of cardiovascular related adverse events.”

Source: Nelson v. Bristol-Myers Squibb, Case No. 1:18-cv-02643

In addition to cardiac problems, some earlier lawsuits also alleged these two drugs could increase the risk of pancreatitis, or inflammation in the pancreas.

There are currently no class actions for Onglyza and Kombiglyze XR, but 272 individual cases involving heart failure were pending in the U.S. District Court for the Eastern District of Kentucky as of April 2019.

The litigation is ongoing and there have not been any publically announced settlements or jury verdicts.

State and Federal Cases Claim Heart Problems and Death

There are several side effects linked to Onglyza and Kombiglyze XR, but lawsuits allege saxagliptin, the drugs’ active ingredient, can cause heart problems and death and drugmakers failed to warn doctors and patients of the risk.

Onglyza attorneys are currently focused on cases from people who suffered heart failure or congestive heart failure between July 2009 and April 5, 2016.

On Feb. 2, 2018, judges consolidated cases for heart failure, congestive heart failure, myocardial infarction and cardiovascular injury from 23 districts into multidistrict litigation (MDL) No. 2809. MDL 2809 is in the Eastern District of Kentucky, and Chief Judge Karen K. Caldwell is presiding over the cases.

There is also a motion seeking to consolidate cases in California State Court. The first bellwether trial is not expected until at least October 2020.

Judge Dismisses Pancreatitis Injury Cases

The first lawsuits involving these drugs alleged pancreatitis. A federal judge in California granted AstraZeneca’s motion for summary judgment in May 2016 and dismissed the claims of 14 people who alleged pancreatic injuries, including pancreatic cancer. “No similar claims remain actively pending in any U.S. jurisdiction,” according to AstraZeneca’s 2016 Annual Report.

Lawsuits Focus on Lack of Studies and Hidden Risks

Plaintiffs allege the manufacturers of Onglyza and Kombiglyze XR failed to warn about heart failure, congestive heart failure, cardiac failure and death, despite clinical trial findings and FDA Advisory Committee recommendations for a warning. They also say manufacturers did not perform adequate studies to determine if Onglyza and Kombiglyze XR may increase risks of cardiovascular-related adverse events.

Because people with Type 2 diabetes are at increased risk for heart problems, the FDA released a 2008 guidance stating manufacturers should be able to demonstrate their drugs do not increase this risk. But, lawsuits say, drugmakers started selling Onglyza in 2009 without studying the risk, despite the 2008 guidance.

Then, they began selling Kombiglyze in 2010. Still, they failed to assess any possible risks, lawsuits say.

“… despite the FDA Advisory Committee voting to add a warning (or remove the drugs from the market), Defendants failed and continue to fail to warn. Once again, Defendants place sales over patient safety.”

Source: Sexton v. Bristol-Myers Squibb et al., Case No. 5:18-cv-00510-KKC

Almost five years later — after making substantial profits — drugmakers finally conducted the cardiac safety studies required in 2008, lawsuits say.

The companies conducted a trial called Saxagliptin Assessment of Vascular Outcomes Recorded in Patients with Diabetes Mellitus — Thrombolysis in Myocardial Infarction 53, or SAVOR for short.

Researchers found a “statistically significant” increased risk of heart failure connected to the two drugs. The trials found about 35 out of every 1,000 people who took Onglyza or Kombiglyze XR ended up in the hospital for heart failure versus 28 out of 1,000 for people who took a placebo.

In spite of study findings and a FDA panel ruling, defendants continue to put patients at risk, plaintiffs say.

Case Examples
Wilma J. Sexton
Wilma J. Sexton filed her lawsuit on Aug. 22, 2018. She took Kombiglyze XR from December 2011 to July 2018. She suffered heart failure after taking the drug.
Dennis Turner
Dennis Turner filed his lawsuit on Dec. 12, 2017. He took Onglyza from September 2012 to August 2015. In October 2014, he suffered congestive heart failure.
John Wesley Hunt Sr.
John Wesley Hunt Sr. filed his lawsuit on Oct. 25, 2017. He took Onglyza and/or Kombiglyze XR from September 2015 to April 2017. He suffered myocardial infarctions and congestive heart failure and ended up in the hospital in November 2015 and again in January 2016.
Onglyza 5mg Pills
Onglyza and Kombiglyze XR Lawsuit Facts
  1. Number of Lawsuits 225
  2. Plaintiff Injuries Heart failure, congestive heart failure, heart attack, pancreatitis and death
  3. Defendants Bristol-Myers Squibb and AstraZeneca
  4. MDL Location U.S. District Court for the Eastern District of Kentucky
  5. Litigation Status Active

Please seek the advice of a medical professional before making health care decisions.

Michelle Llamas, Senior Content Writer
Written By Michelle Llamas Senior Writer

Michelle Llamas has been writing articles and producing podcasts about drugs, medical devices and the FDA for nearly a decade. She focuses on various medical conditions, health policy, COVID-19, LGBTQ health, mental health and women’s health issues. Michelle collaborates with experts, including board-certified doctors, patients and advocates, to provide trusted health information to the public. Some of her qualifications include:

  • Member of American Medical Writers Association (AMWA) and former Engage Committee and Membership Committee member
  • Centers for Disease Control and Prevention (CDC) Health Literacy certificates
  • Original works published or cited in The Lancet, British Journal of Clinical Pharmacology and the Journal for Palliative Medicine
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  1. Nelson v. Bristol-Myers Squibb Company, AstraZeneca Pharmaceuticals LP, and McKesson Corporation. (2018, March 26). In United States District Court For the Southern District of New York, Complaint for Damages and Demand for Jury Trial. Case No.: 1:18-cv-2643. Retrieved from
  2. AstraZeneca. (2016). What science can do. Retrieved from
  3. Sexton v. Bristol-Myers Squibb. (2018, August 22). United States District Court Eastern District of Kentucky Pikeville Division, Complaint for Damages Jury Trial Demanded. Case No. 5:18-cv-00510-KKC. Retrieved from
  4. Hunt v. Bristol-Myers Squibb. (2017, October 25). United States District Court For the Middle District of Georgia Macon Division, Complaint for Damages and Demand for Jury Trial. Case No. 5:17-cv-00419-CAR. Retrieved from
  5. Turner v. Bristol-Myers Squibb. (2017, December 12). In The United States District Court for the Eastern District Of Missouri Eastern Division, Complaint. Case No. 4:17-cv-02867. Retrieved from
  6. Gibson v. AstraZeneca. (2015, October 29). Complaint for Damages, Cook County Circuit Court, Case No. 2015-L-010969. Retrieved from:
  7. (2015, August 28). FDA Drug Safety Communication: FDA warns that DPP-4 inhibitors for type 2 diabetes may cause severe joint pain. Retrieved from
  8. (2016, April 5). Diabetes Medications Containing Saxagliptin and Alogliptin: Drug Safety Communication - Risk of Heart Failure. Retrieved from:
  9. AstraZeneca. (n.d.). AstraZeneca Annual Report and Form 20-F Information 2016. Retrieved from
  10. AstraZeneca. (2017). Annual Report and Form 20-F Information 2016. Retrieved from
  11. Chester v. Bristol-Myers Squibb et al. (2017, February 1). Complaint for Damages, United States District Court Southern District of Texas. Case 4:17-cv-00316. Retrieved from
  12. Taylor V. Bristol-Myers Squibb el al. (2016, July 13). Complaint for Damages, United States District Court Eastern District Of Kentucky Lexington Division. Case: 5:16-cv-00260-KKC. Retrieved from
  13. Onglyza and Kombiglyze Products Liability Litigation. (2017, October 11). Memorandum in Support of Plaintiff’s Motion for Transfer of Actions to the United States District Court for the Northern District of California. Retrieved from:
  14. U.S. Judicial Panel on Multidistrict Litigation. (2018, February 2). In Re: Onglyza (Saxagliptin) And Kombiglyze Xr (Saxagliptin And Metformin) Products Liability Litigation; Transfer Order. Retrieved from
  15. U.S. Judicial Panel on Multidistrict Litigation. (2019, April 15). MDL Statistics Report - Distribution of Pending MDL Dockets by District. Retrieved from
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