Clinical trial Recruiting at 20 sites Phase 3 Interventional Ages 6 and up

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

PhasePhase 3
Study typeInterventional
Ages6 Years and up
SexAll
Enrollment230 (estimated)
SponsorAstraZeneca
Industry-sponsored
Drugs / interventionsbenralizumab
Locations46 sites (Aurora, Colorado and 45 other locations)
StatusRecruiting
StartedJuly 24, 2026
Main results expectedDecember 27, 2029
Study endsDecember 27, 2029
Registry record updatedNovember 10, 2026
Trial IDNCT07444567 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

  • Research Site
    Buenos Aires, Argentina
    Recruiting
  • Research Site
    Florida, Argentina
    Recruiting
  • Research Site
    Mar del Plata, Argentina
    Recruiting
  • Research Site
    Mendoza, Argentina
    Recruiting
  • Research Site
    Mendoza, Argentina
    Recruiting
  • Research Site
    Rosario, Argentina
    Recruiting
Show 40 more locations
  • Research Site
    Brussels, Belgium
    Recruiting
  • Research Site
    Hamilton, Ontario, Canada
    Recruiting
  • Research Site
    Toronto, Ontario, Canada
    Recruiting
  • Research Site
    Toronto, Ontario, Canada
    Recruiting
  • Research Site
    Marseille, France
    Recruiting
  • Research Site
    Montpellier, France
    Recruiting
  • Research Site
    Nantes, France
    Recruiting
  • Research Site
    Paris, France
    Recruiting
  • Research Site
    Paris, France
    Recruiting
  • Research Site
    Pessac, France
    Recruiting
  • Research Site
    Suresnes, France
    Recruiting
  • Research Site
    Haifa, Israel
    Recruiting
  • Research Site
    Incheon, South Korea
    Recruiting
  • Research Site
    London, United Kingdom
    Recruiting
  • Research Site
    Aurora, Colorado, United States
    Not yet recruiting
  • Research Site
    Bethesda, Maryland, United States
    Not yet recruiting
  • Research Site
    Ann Arbor, Michigan, United States
    Not yet recruiting
  • Research Site
    Northfield, New Jersey, United States
    Not yet recruiting
  • Research Site
    The Bronx, New York, United States
    Not yet recruiting
  • Research Site
    Durham, North Carolina, United States
    Not yet recruiting
  • Research Site
    Cleveland, Ohio, United States
    Not yet recruiting
  • Research Site
    Salt Lake City, Utah, United States
    Not yet recruiting
  • Research Site
    Lobos, Argentina
    Not yet recruiting
  • Research Site
    San Juan Bautista, Argentina
    Not yet recruiting
  • Research Site
    Innsbruck, Austria
    Not yet recruiting
  • Research Site
    Edegem, Belgium
    Not yet recruiting
  • Research Site
    Calgary, Alberta, Canada
    Not yet recruiting
  • Research Site
    Toronto, Ontario, Canada
    Not yet recruiting
  • Research Site
    Bron, France
    Not yet recruiting
  • Research Site
    Ahmedabad, India
    Withdrawn
  • Research Site
    Ajmer, India
    Not yet recruiting
  • Research Site
    Holon, Israel
    Not yet recruiting
  • Research Site
    Petah Tikva, Israel
    Not yet recruiting
  • Research Site
    Roma, Italy
    Withdrawn
  • Research Site
    Rotterdam, Netherlands
    Not yet recruiting
  • Research Site
    Chęciny, Poland
    Not yet recruiting
  • Research Site
    Gdansk, Poland
    Not yet recruiting
  • Research Site
    Lodz, Poland
    Not yet recruiting
  • Research Site
    Lodz, Poland
    Withdrawn
  • Research Site
    Istanbul, Turkey (Türkiye)
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Benralizumab in EGPA: real-world effectiveness and safety

    This is a real-world study checking how well and safely benralizumab works for adults with eosinophilic granulomatosis with polyangiitis (EGPA).

    Recruiting European EGPA Study Group · Florence, Italy · NCT07815886

  • Investigating benralizumab for children with eosinophilic diseases

    This study is testing if a medication called benralizumab can help children aged 6 to under 18 with eosinophilic granulomatosis with polyangiitis feel better and stay healthy over a year of treatment.

    Recruiting at 13 sites Phase 3 AstraZeneca · Aurora, Colorado and 14 other locations · NCT06512883

  • Predicting response to Benralizumab in severe asthma patients

    This study is testing if a specific blood test can help predict how well people with severe asthma will respond to the medication Benralizumab.

    Recruiting at 15 sites Phase 4 Nantes University Hospital · Aix-en-Provence and 19 other locations · NCT04565483

  • Chronic Respiratory Disease Participant Engagement

    This study tests whether adults with long-term lung conditions can get comfortable with a clinical trials unit and research team before joining future trials.

    Recruiting Richmond Pharmacology Limited · London · NCT07924462

  • HB0056 in adults with moderate to severe asthma

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    Recruiting at 2 sites Phase 1/2 Shanghai Huaota Biopharmaceutical Co., Ltd. · Beijing and 1 other locations · NCT07899996

  • Tilrekimig (PF-07275315) for Severe Asthma: Aimed at Adults with Frequent Exacerbations

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.