Company: AZN
Filing Date: 2025-09-17
Form Type: 6-K
Source: 0001654954-25-010845
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Company: ASTRAZENECA PLC
Filing Date: 2025-09-17
Form: 6-K
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#### FORM 6-K
<div align='center'>SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Report of Foreign Issuer

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

For the month of September 2025

Commission File Number: 001-11960</div>

#### AstraZeneca PLC
<div align='center'>1 Francis Crick Avenue

Cambridge Biomedical Campus

Cambridge CB2 0AA

United Kingdom

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F X Form 40-F __

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ______

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes __ No X

If “Yes” is marked, indicate below the file number assigned to the Registrant in connection with Rule 12g3-2(b): 82-_____________</div>

#### AstraZeneca PLC
<div align='center'>INDEX TO EXHIBITS</div>

#### 1.

#### Update on RESOLUTE Phase III trial
17 September 2025

<div align='center'>**Update on the RESOLUTE Phase III trial for Fasenra in chronic obstructive pulmonary disease**</div>

The RESOLUTE Phase III trial of AstraZeneca's Fasenra (benralizumab), despite showing numerical improvement, did not achieve statistical significance in the primary endpoint in patients with chronic obstructive pulmonary disease (COPD). [i]

Sharon Barr, Executive Vice President, BioPharmaceuticals R&D, AstraZeneca, said: "COPD, which remains a leading cause of death worldwide, is a complex, heterogeneous disease and we continue to advance other promising approaches in our pipeline to address the unmet needs of patients. With its well-established ability to target and eliminate eosinophils, F