AstraZeneca and Bristol-Myers Squibb receive complete response letter from US Food and Drug Administration for dapagliflozin

Thursday, 19 January 2012

AstraZeneca and Bristol-Myers Squibb Company today announced that the US Food and Drug Administration (FDA) has issued a complete response letter regarding the New Drug Application (NDA) for investigational compound dapagliflozin for the treatment of type 2 diabetes in adults.

The complete response letter requests additional clinical data to allow a better assessment of the benefit-risk profile for dapagliflozin. This includes clinical trial data from ongoing studies and may require information from new clinical trials. AstraZeneca and Bristol-Myers Squibb will work closely with the FDA to determine the appropriate next steps for the dapagliflozin application and are in ongoing discussions with health authorities in Europe and other countries as part of the application procedures.

AstraZeneca and Bristol-Myers Squibb remain committed to dapagliflozin and its development. This commitment is based on the benefit-risk profile of this investigational medicine, from a clinical development programme that included more than 8,000 adult patients with type 2 diabetes (with more than 5,000 patients treated with dapagliflozin) in 19 clinical trials.


About dapagliflozin

Dapagliflozin, an inhibitor of SGLT2, a target in the kidney, is under joint development by Bristol-Myers Squibb and AstraZeneca. Dapagliflozin, as an adjunct to diet and exercise, is being investigated to evaluate its safety and efficacy in improving glycemic control in adults with type 2 diabetes, for use as a monotherapy and in combination with other anti-diabetic agents.

About Type 2 Diabetes

The Centers for Disease Control and Prevention estimate that approximately one in every 11 adults in the United States has diagnosed diabetes. Type 2 diabetes accounts for approximately 90 to 95% of all cases of diagnosed diabetes in adults. Type 2 diabetes is a chronic, progressive disease characterized by insulin resistance and dysfunction of beta cells in the pancreas, which decreases insulin sensitivity and secretion, leading to elevated glucose levels. Over time, this sustained hyperglycemia contributes to worsening insulin resistance and further beta cell dysfunction. To date, treatments for type 2 diabetes have focused primarily on insulin-dependent mechanisms. An approach that acts independently of insulin could provide an additional option for adults with type 2 diabetes.

Significant unmet need still exists as nearly half of treated patients remain inadequately controlled on their current glucose-lowering regimen. Many patients with type 2 diabetes have additional comorbidities (such as obesity) which may complicate glycemic control.

About SGLT2

The kidney plays an important role in glucose balance, normally filtering ~180g of glucose each day, with virtually all glucose being reabsorbed back into circulation. SGLT2 is a major sodium-glucose cotransporter in the kidney and is an insulin-independent pathway for the reabsorption of glucose back into the blood.

About the Bristol-Myers Squibb and AstraZeneca Collaboration

Bristol-Myers Squibb and AstraZeneca entered into collaboration in January 2007 to enable the companies to research, develop and commercialise select investigational drugs for type 2 diabetes. The Bristol-Myers Squibb/AstraZeneca Diabetes collaboration is dedicated to global patient care, improving patient outcomes and creating a new vision for the treatment of type 2 diabetes.

About Bristol-Myers Squibb

Bristol-Myers Squibb is a global biopharmaceutical company whose mission is to discover, develop and deliver innovative medicines that help patients prevail over serious diseases. For more information about Bristol-Myers Squibb, visit or follow us on Twitter at

About AstraZeneca

AstraZeneca is a global, innovation-driven biopharmaceutical business with a primary focus on the discovery, development and commercialisation of prescription medicines for gastrointestinal, cardiovascular, neuroscience, respiratory and inflammation, oncology and infectious disease. AstraZeneca operates in over 100 countries and its innovative medicines are used by millions of patients worldwide. For more information please visit:


Media Enquiries

Esra Erkal-Paler +44 20 7604 8030 (24 hours)
Abigail Baron +44 20 7604 8034 (24 hours)
Isabelle Jouin +44 20 7604 8031 (24 hours)

Investor Enquiries UK

James Ward-Lilley +44 20 7604 8122 mob: +44 7785 432613
Karl Hård +44 20 7604 8123 mob: +44 7789 654364
Nicklas Westerholm +44 20 7604 8124 mob: +44 7585 404950

Investor Enquiries US

Ed Seage +1 302 886 4065 mob: +1 302 373 1361
Jorgen Winroth +1 212 579 0506 mob: +1 917 612 4043


  • Corporate and financial
  • Science