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AstraZeneca: Farxiga met primary endpoint in DELIVER Phase III trial, reducing risk of cardiovascular death or worsening heart failure in patients with preserved ejection fraction

Results from the DELIVER and DAPA-HF Phase III trials demonstrate Farxiga's efficacy in heart failure regardless of ejection fraction.

High-level results from the DELIVER Phase III trial showed AstraZeneca's Farxiga (dapagliflozin) reached a statistically significant and clinically meaningful reduction in the primary composite endpoint of cardiovascular (CV) death or worsening heart failure (HF). The trial was conducted in patients with HF with mildly reduced or preserved ejection fraction (defined as left ventricular ejection fraction [LVEF] greater than 40%).

HF is a chronic, long-term condition that worsens over time[1]. It affects nearly 64 million people globally[2] and is associated with substantial morbidity and mortality[3]. There are several main categories of HF related to ejection fraction (EF), a measurement of the percentage of blood leaving the heart each time it contracts including: HF with reduced EF (HFrEF) (LVEF less than or equal to 40%), HF with mildly reduced EF (HFmrEF) (LVEF 41-49%) and preserved EF (HFpEF) (LVEF greater than or equal to 50%)[4]. Approximately half of all HF patients have mildly reduced or preserved EF with few therapeutic options available[4,5]. Farxiga already has approved indications relating to the treatment of type-2 diabetes (T2D), HFrEF and chronic kidney disease (CKD).  

Dr. Scott Solomon, Professor of Medicine at Harvard Medical School and Brigham and Women's Hospital and Principal Investigator of the DELIVER Phase III trial, said: "We are delighted to have met the primary endpoint in this patient population which has few treatment options. DELIVER is the largest and broadest trial to date in heart failure with mildly reduced or preserved ejection fraction. The results of DELIVER extend the benefit of dapagliflozin to the full spectrum of patients with heart failure."

Mene Pangalos, Executive Vice President, BioPharmaceuticals R&D, AstraZeneca, said: "Today's groundbreaking results coupled with those from the DAPA-HF trial show that Farxiga is effective in treating heart failure regardless of ejection fraction. These data build upon our previous studies demonstrating cardiorenal protection across patients with either diabetes, chronic kidney disease or heart failure."

The safety and tolerability profile of Farxiga in the DELIVER Phase III trial were consistent with the well-established safety profile of the medicine.

The full DELIVER Phase III trial results will be submitted for presentation at a forthcoming medical meeting and regulatory submissions will be made in the coming months.



HF affects approximately 64 million people worldwide[2], at least half of whom have a reduced EF[6], including approximately 15 million in the EU[7], six million in the US[8], and 13.7 million treated adults in China[9]. There are several main categories of HF related to EF, a measurement of the percentage of blood leaving the heart each time it contracts including: HFrEF (LVEF less than or equal to 40%), HFmrEF (LVEF 41-49%) and HFpEF (LVEF greater than or equal to 50%)[1,4]. HF with EF above 40% represents about half of all HF cases, and is highly prevalent in patients with hypertension, T2D, obesity, metabolic syndrome or CKD[4,5,10]. HF remains as fatal as some of the most common cancers in both men (prostate and bladder cancers) and women (breast cancer)[11]. Chronic HF is the leading cause of hospitalisation for those over the age of 65 and represents a significant clinical and economic burden[12].


DELIVER was an international, randomised, double-blind, parallel-group, placebo-controlled, event-driven Phase III trial designed to evaluate the efficacy of Farxiga, compared with placebo, in the treatment of HF patients with LVEF greater than 40% with or without T2D. Farxiga was given once daily in addition to background therapy (regional standard of care for all comorbidities, including diabetes and hypertension, with the exception of concomitant use of a sodium-glucose cotransporter 2 [SGLT2] inhibitor)[13].[ ] DELIVER is the largest clinical trial to date in HF patients with EF above 40%, with 6,263 randomised patients[13,14].

The primary endpoint was the time to first occurrence of CV death, hospitalisation for HF (hHF) or an urgent HF visit. The secondary endpoint includes the total number of HF events (hHF or urgent HF visit) and CV death, change from baseline in the total symptom score of the Kansas City Cardiomyopathy Questionnaire at eight months, time to the occurrence of CV death and time to the occurrence of death from any cause[13].


Farxiga (dapagliflozin) is a first-in-class, oral, once-daily SGLT2 inhibitor. Research has shown Farxiga's efficacy in preventing and delaying cardiorenal disease, while also protecting the organs - important findings given the underlying links between the heart, kidneys and pancreas[15-17].[ ]Damage to one of these organs can cause the other organs to fail, contributing to leading causes of death worldwide, including T2D, HF and CKD[2,18-20].[ ]

In the US, Farxiga is approved as an adjunct to diet and exercise to improve glycaemic control in adults with T2D and in T2D to reduce the risk of hHF or CV death when added to standard of care based on the findings of the DECLARE-TIMI 58 ( Phase III CV outcomes trial[17]. Farxiga is also approved for the treatment of HFrEF ( and the treatment of CKD ( based on the findings of the DAPA-HF ( and DAPA-CKD ( Phase III trials. In the European Union, Forxiga is indicated as both monotherapy (when metformin is appropriate) and as part of combination therapy for the treatment of insufficiently controlled T2D, with the additional benefits of weight loss and blood-pressure reduction, as an adjunct to diet and exercise in adults with T2D. Forxiga is also approved for the treatment of symptomatic chronic HFrEF ('s%20Forxiga%20(dapagliflozin)%20has%20been,%2D2%20diabetes%20(T2D).) in adults with and without T2D and for the treatment of CKD ('s%20Forxiga%20(dapagliflozin)%2C%20a,%2D2%20diabetes%20(T2D).) in adults with and without T2D.

DapaCare is a robust programme of clinical trials to evaluate the potential CV, renal and organ protection benefits of Farxiga. It includes more than 35 completed and ongoing Phase IIb/III trials in more than 35,000 patients, as well as more than 2.5 million patient-years' experience. Farxiga is currently being tested in the DAPA-MI Phase III trial - a first of its kind, indication-seeking registry-based randomised controlled trial in patients without T2D following an acute myocardial infarction (MI) or heart attack[21].[ ]

AstraZeneca in CVRM

Cardiovascular, Renal and Metabolism (CVRM), part of BioPharmaceuticals, forms one of AstraZeneca's main disease areas and is a key growth driver for the Company. By following the science to understand more clearly the underlying links between the heart, kidneys and pancreas, AstraZeneca is investing in a portfolio of medicines for organ protection and improving outcomes by slowing disease progression, reducing risks and tackling co-morbidities. The Company's ambition is to modify or halt the natural course of CVRM diseases and potentially regenerate organs and restore function, by continuing to deliver transformative science that improves treatment practices and CV health for millions of patients worldwide.


AstraZeneca (LSE/STO/Nasdaq: AZN) is a global, science-led biopharmaceutical company that focuses on the discovery, development, and commercialisation of prescription medicines in Oncology, Rare Diseases, and BioPharmaceuticals, including Cardiovascular, Renal & Metabolism, and Respiratory & Immunology. Based in Cambridge, UK, AstraZeneca operates in over 100 countries and its innovative medicines are used by millions of patients worldwide. Please visit ( and follow the Company on Twitter @AstraZeneca (


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1. Cleveland Clinic [Internet]. Heart failure; [cited 2022 Jan 11] Available from:
2. Vos T, et al. Global, regional, and national incidence, prevalence, and years lived with disability for 328 diseases and injuries for 195 countries, 1990-2016: A systematic analysis for the Global Burden of Disease Study 2016. Lancet 2017; 390(10100):1211-59.
3. Mozaffarian D, et al. Heart disease and stroke statistics-2016 update. Circulation. 2016; 133(4):e38-360.
4. Dunlay SM, et al. Epidemiology of heart...

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