Continued benralizumab for participants who completed a prior benralizumab study
Official title: ROSY-F: Roll-Over Study for Participants Who Have Completed a Previous Study With Benralizumab (Fasenra) and Are Judged by the Investigator to Clinically Benefit From Continued Treatment
Run by AstraZeneca · NCT07444567 · Data updated 2026-11-12
This trial tests continuing benralizumab in people who benefited from it in a previous study, to see if long-term treatment is safe and tolerable.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 6 Years and up |
| Sex | All |
| Enrollment | 230 (estimated) |
| Sponsor | AstraZeneca Industry-sponsored |
| Drugs / interventions | benralizumab |
| Locations | 46 sites (Aurora, Colorado and 45 other locations) |
| Status | Recruiting |
| Started | July 24, 2026 |
| Main results expected | December 27, 2029 |
| Study ends | December 27, 2029 |
| Registry record updated | November 10, 2026 |
| Trial ID | NCT07444567 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults who completed a minimum required period of a parent benralizumab study and are judged by their investigator to continue benefiting from treatment, with access constraints as per protocol.
✕Probably not a fit
Individuals for whom continuing benralizumab is not beneficial or not clinically appropriate will not participate.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is an open-label, non-randomized, multicenter international study designed to provide continued access to benralizumab for participants who completed or exited a parent trial and are judged by the investigator to still benefit. Eligible participants will be offered transition to ROSY-F, with ongoing safety and tolerability monitoring while treatment continues. The study focuses on indications including asthma, EGPA, and HES, and may enroll participants from current or future parent studies. Treatment with benralizumab will be provided as long as clinical benefit is observed and access remains appropriate. Key elements include continued treatment with benralizumab and ongoing safety assessments in a real-world, post-parent-study setting.
Why it matters
Potential benefit: Participants who continue benralizumab may experience ongoing symptom control and clinical benefit from their treatment.
How similar studies have gone: Previous benralizumab programs have shown safety and tolerability with long-term use, supporting continuation in similar roll-over settings.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * 1\. Provision of signed and dated written ICF. 2\. Participants completing minimum required OLE period of a parent study and judged by the Investigator to benefit from continued treatment. * 3\. Participants must agree to follow the contraception requirements as per their respective parent protocols from study inclusion up to 12 weeks after the last dose of study treatment. * 4\. Participants without childbearing potential at enrolment must agree to start appropriate contraception if childbearing potential develops during the study and up to 12 weeks after the last dose of study treatment. * 5\. Participants who are unable to access commercially available benralizumab and clinically indicated for continuation. Exclusion Criteria: * 1\. Ongoing, unresolved AE requiring interruption of treatment at the end of the prior parent study (ie, when the parent study is either completed or closed) that in the Investigator's opinion would prevent restarting benralizumab. * 2\. Participants who are planning to use live/live-attenuated vaccines. * 3\. Participants who are planning to use biologic therapies, including B-cell therapies with the exception for the treatment of co-morbidities where no alternative medicine is available. * 4\. Participants with any medical condition (such as cancer or viral infections \[hepatitis\]) or psychiatric condition that, in the opinion of the Investigator, could jeopardise or would compromise the participant's ability to participate in this study as determined by the Investigator based on protocol required assessments. * 5\. Concurrently enrolled in any clinical study (other than a parent study). * 6\. Participants who discontinued the parent study prior to completing the minimum OLE or treatment period. * 7\. Local access to commercially available benralizumab.
Where it's running
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Buenos Aires, Argentina Recruiting -
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Florida, Argentina Recruiting -
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Mar del Plata, Argentina Recruiting -
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Mendoza, Argentina Recruiting -
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Mendoza, Argentina Recruiting -
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Rosario, Argentina Recruiting
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Brussels, Belgium Recruiting -
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Hamilton, Ontario, Canada Recruiting -
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Toronto, Ontario, Canada Recruiting -
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Toronto, Ontario, Canada Recruiting -
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Marseille, France Recruiting -
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Montpellier, France Recruiting -
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Nantes, France Recruiting -
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Paris, France Recruiting -
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Paris, France Recruiting -
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Pessac, France Recruiting -
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Suresnes, France Recruiting -
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Haifa, Israel Recruiting -
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Incheon, South Korea Recruiting -
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London, United Kingdom Recruiting -
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Aurora, Colorado, United States Not yet recruiting -
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Bethesda, Maryland, United States Not yet recruiting -
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Ann Arbor, Michigan, United States Not yet recruiting -
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Northfield, New Jersey, United States Not yet recruiting -
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The Bronx, New York, United States Not yet recruiting -
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Durham, North Carolina, United States Not yet recruiting -
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Cleveland, Ohio, United States Not yet recruiting -
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Salt Lake City, Utah, United States Not yet recruiting -
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Lobos, Argentina Not yet recruiting -
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San Juan Bautista, Argentina Not yet recruiting -
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Innsbruck, Austria Not yet recruiting -
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Edegem, Belgium Not yet recruiting -
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Calgary, Alberta, Canada Not yet recruiting -
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Toronto, Ontario, Canada Not yet recruiting -
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Bron, France Not yet recruiting -
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Ahmedabad, India Withdrawn -
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Ajmer, India Not yet recruiting -
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Holon, Israel Not yet recruiting -
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Petah Tikva, Israel Not yet recruiting -
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Roma, Italy Withdrawn -
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Rotterdam, Netherlands Not yet recruiting -
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Chęciny, Poland Not yet recruiting -
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Gdansk, Poland Not yet recruiting -
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Lodz, Poland Not yet recruiting -
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Lodz, Poland Withdrawn -
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Istanbul, Turkey (Türkiye) Not yet recruiting
Study contacts
- Study coordinator: AstraZeneca Clinical Study Information Center
- Email: information.center@astrazeneca.com
- Phone: 1-877-240-9479
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.