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A Multicentre, Randomised, Double-Blind, Parallel-Group Placebo-Controlled, Phase 3, Efficacy and Safety Study of Tezepelumab in 5 to < 12 Year Old Children with Severe Uncontrolled Asthma (HORIZON)

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2022-502984-39-00
Acronym
D5180C00016
Enrollment
45
Registered
2023-12-05
Start date
2023-12-13
Completion date
Unknown
Last updated
2025-12-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Severe Uncontrolled Asthma Asthma (an illness that causes breathing difficulty) that is not fully controlled, so that asthma attacks are still occurring despite the use of other available treatments

Brief summary

Annualised asthma exacerbation rate (AAER)

Detailed description

Change from baseline to Week 52 in pre-BD FEV1%PN., AAER associated with allergic asthma (as defined by a positive perennial allergen using serum specific IgE [FEIA])., Time to first severe asthma exacerbation., Proportion of participants with ≥ 1 severe asthma exacerbation., AAER associated with Emergency Room (ER) visit or hospitalisation., Cumulative exposure to systemic corticosteroids for treatment of severe asthma exacerbations during the 52-week double-blind Treatment period., Change from baseline to Week 52 in PAQLQ-(S)-IA total score., Change from baseline to Week 52 in weekly mean daily PASO reported diary., Change from baseline to Week 52 in ACQ-IA score., Change from baseline to Week 52 in Weekly mean rescue medication use and Weekly mean number of night-time awakenings., Change from baseline to Week 52 in biomarkers (blood eosinophil count, FeNO and total serum IgE)., Change from baseline to Week 52 pre-BD PEF., Asthma specific HRU (eg, unscheduled physician visits, unscheduled phone calls to physicians, use of other asthma medications)., Participant/caregiver health-related absences from work/school due to asthma., Serum concentrations of tezepelumab., Immunogenicity: Incidence of anti-drug antibodies and neutralising antibodies.

Interventions

Sponsors

AstraZeneca AB
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
0 Years to 17 Years

Design outcomes

Primary

MeasureTime frame
Annualised asthma exacerbation rate (AAER)

Secondary

MeasureTime frame
Change from baseline to Week 52 in pre-BD FEV1%PN., AAER associated with allergic asthma (as defined by a positive perennial allergen using serum specific IgE [FEIA])., Time to first severe asthma exacerbation., Proportion of participants with ≥ 1 severe asthma exacerbation., AAER associated with Emergency Room (ER) visit or hospitalisation., Cumulative exposure to systemic corticosteroids for treatment of severe asthma exacerbations during the 52-week double-blind Treatment period., Change from baseline to Week 52 in PAQLQ-(S)-IA total score., Change from baseline to Week 52 in weekly mean daily PASO reported diary., Change from baseline to Week 52 in ACQ-IA score., Change from baseline to Week 52 in Weekly mean rescue medication use and Weekly mean number of night-time awakenings., Change from baseline to Week 52 in biomarkers (blood eosinophil count, FeNO and total serum IgE)., Change from baseline to Week 52 pre-BD PEF., Asthma specific HRU (eg, unscheduled physician visits, unsche

Countries

France, Hungary, Italy, Netherlands, Poland, Romania, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026