TOKYO - Astellas Pharma Inc. (TSE: 4503, President and CEO: Kenji Yasukawa, Ph.D., 'Astellas') today announced results from the Phase 3 DOLOMITES study, evaluating the efficacy and safety of roxadustat compared with darbepoetin alfa for the treatment of anemia in non-dialysis dependent (NDD) adult patients with stage 3-5 chronic kidney disease (CKD) (Abstract: MO001). The data presented during an oral presentation at the 57th European Renal Association-European Dialysis and Transplant Association (ERA-EDTA) Virtual Congress, taking place between June 6-9, 2020, showed non-inferiority of roxadustat to darbepoetin alfa in the correction of hemoglobin levels during the first 24 weeks of treatment (89.5% vs 78.0%; a difference of 11.51% [95% confidence interval (Cl): 5.66%, 17.36%]), meeting the study's primary endpoint with a lower bound of the 95% CI >0.

Secondary endpoints were hierarchically tested for non-inferiority and superiority. Superiority of roxadustat to darbepoetin alfa was demonstrated by a decrease in low-density lipoprotein cholesterol with a least square mean (LSM) difference of -0.403 mmol/L (95% CI -0.510, -0.296; [P8g/dL, and the change from BL in Hb levels of ?2g/dL if the BL Hb?8g/dL. For more information about this study, visit www.clinicaltrials.gov [NCT02021318].1

About CKD and Anemia

CKD is characterized by a progressive loss of kidney function caused by damage to the kidneys resulting from conditions such as hypertension, diabetes or immune-regulated inflammatory conditions.2 Worldwide 1 in 10 people are living with CKD.3 In Europe, 1 in 8 people are living with CKD,3 of whom 1 in 5 are affected by anemia; this rate increases to 1 in 2 in people with the most severe CKD (CKD stage 5).4 Globally, CKD is predicted to become the fifth most common cause of premature death by 2040.5 It is a critical worldwide healthcare issue that represents a large and growing unmet medical need.

Anemia is a common complication of CKD,6 resulting from the failing kidneys' ability to produce erythropoietin, reduced oxygen sensing, and increased hepcidin and iron deficiency resulting from chronic inflammation. It is associated with significant morbidity and mortality in dialysis and non-dialysis populations, increasing in both prevalence and severity as kidney disease worsens.7 CKD anemia increases the risk of adverse cardiovascular events, worsens renal outcomes and can negatively impact patients' quality of life.8-10

About Roxadustat

Roxadustat is approved and launched for the treatment of anemia associated with CKD in Japan in dialysis dependent (DD) patients and in China in both DD and NDD patients. A supplemental New Drug Application (sNDA) has been submitted in Japan for NDD patients and a New Drug Application (NDA) has been filed for the FDA review in the U.S. in both DD and NDD patients. In the EU, a marketing authorization application for roxadustat has been accepted for regulatory review for both DD and NDD patients.

Astellas and FibroGen are collaborating on the development and commercialization of roxadustat for the potential treatment of anemia in territories including Japan, Europe, the Commonwealth of Independent States, the Middle East and South Africa. FibroGen and AstraZeneca are collaborating on the development and commercialization of roxadustat for the potential treatment of anemia in the U.S., China and other markets in the Americas and in Australia/New Zealand as well as Southeast Asia.

About Astellas

Astellas Pharma Inc., based in Tokyo, Japan, is a company dedicated to improving the health of people around the world through the provision of innovative and reliable pharmaceutical products. For more information, please visit https://www.astellas.com/en.

Astellas Cautionary Notes

In this press release, statements made with respect to current plans, estimates, strategies and beliefs, and other statements that are not historical facts are forward-looking statements about the future performance of Astellas. These statements are based on management's current assumptions and beliefs in light of the information currently available to it and involve known and unknown risks and uncertainties. A number of factors could cause actual results to differ materially from those discussed in the forward-looking statements. Such factors include, but are not limited to: (i) changes in general economic conditions and in laws and regulations, relating to pharmaceutical markets, (ii) currency exchange rate fluctuations, (iii) delays in new product launches, (iv) the inability of Astellas to market existing and new products effectively, (v) the inability of Astellas to continue to effectively research and develop products accepted by customers in highly competitive markets and (vi) infringements of Astellas' intellectual property rights by third parties.

Information about pharmaceutical products (including products currently in development) that is included in this press release is not intended to constitute an advertisement or medical advice.

REFERENCES

1Clinicaltrials.gov. Roxadustat in the Treatment of Anemia in Chronic Kidney Disease (CKD) Patients, Not on Dialysis, in Comparison to Darbepoetin Alfa (Dolomites). Available from: https://clinicaltrials.gov/ct2/show/NCT02021318 [Last accessed: June 2020].

2Ojo A. Addressing the Global Burden of Chronic Kidney Disease Through Clinical and Translational Research. Trans Am Clin Climatol Assoc 2014;125:229-246.

3International Society of Nephrology. Chronic Kidney Disease. Global Kidney Health Atlas 2017. Available from: www.theisn.org/global-atlas [Last accessed: June 2020].

4Dmitrieva O, de Lusignan S, Macdougall IC, et al. Association of anaemia in primary care patients with chronic kidney disease: cross sectional study of quality improvement in chronic kidney disease (QICKD) trial data. BMC Nephrol 2013;14:24.

5Institute for Health Metrics and Evaluation (IHME). Findings from the Global Burden of Disease Study 2017. Seattle, WA: IHME, 2018. Available from: http://www.healthdata.org/sites/default/files/files/policy_report/2019/GBD_2017_Booklet.pdf [Last accessed: June 2020].

6McClellan W, Aronoff SL, Kline Bolton W, et al. The prevalence of anemia in patients with chronic kidney disease. Curr Med Res Opin 2004;20:1501-1510.

7Stauffer ME and Fan T. Prevalence of Anemia in Chronic Kidney Disease in the United States. PLoS One 2014;9:e84943.

8Mohanram A, Zhang Z, Shahinfar S, et al. Anemia and end-stage renal disease in patients with type 2 diabetes and nephropathy. Kidney Int 2004;66:1131-1138.

9Weiner DE, Tighiouart H, Stark PC, et al. Kidney disease as a risk factor for recurrent cardiovascular disease and mortality. Am J Kidney Dis 2004;44:198-206.

10Eriksson D, Goldsmith D, Teitsson S, et al. Cross-sectional survey in CKD patients across Europe describing the association between quality of life and anaemia. BMC Nephrol 2016;17:97.

Contact:

Astellas Portfolio Communications

Anna Otten

TEL: +1 (224) 205-665

Email: anna.otten@astellas.com

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