Characterize and Assess Clinical Outcomes of Patients Receiving Tezepelumab After Marketing Approval in Spain
T-ROSS-II
Observational Retrospective Study to Characterize and Assess Clinical Outcomes of Patients Receiving Tezepelumab After Marketing Approval in Spain
1 other identifier
observational
420
1 country
12
Brief Summary
Observational retrospective study to characterize and assess clinical outcomes of patients receiving tezepelumab after marketing approval in Spain
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jun 2025
Shorter than P25 for all trials
12 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 4, 2025
CompletedFirst Posted
Study publicly available on registry
June 10, 2025
CompletedStudy Start
First participant enrolled
June 23, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 19, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 19, 2025
CompletedJanuary 12, 2026
January 1, 2026
6 months
April 4, 2025
January 9, 2026
Conditions
Outcome Measures
Primary Outcomes (5)
Socio-demographic variables: Age (years), Gender (male, female, other); Smoking status (Current smoker, Ex- smoker, Non-smoker) and cumulative index (packs/year); Height (cm) and weight (kg); Body Mass Index (BMI) (kg/m 2 )
To describe the demographic characteristics of patients
Index date (treatment initiation with tezepelumab)
Exacerbation (number of exacerbations)
From 12 months before index date (defined as the date of treatment initiation with tezepelumab) until the end of the follow up which will start after index date and will last up to inclusion (the period will last 9-15 months depending on inclusion date)
Comorbidities (e.g., allergic rhinitis, nasal polyposis, gastroesophageal reflux, chronic obstructive pulmonary disease (COPD), atopic dermatitis and other eosinophilic conditions, conditions related to OCS chronic use, etc.)
From 12 months before index date until index date (defined as the date of treatment initiation with tezepelumab)
Number of respiratory infections and diseases in the previous 12 months and index date
From 12 months before index date until index date (defined as the date of treatment initiation with tezepelumab)
Number of participants with an Allergy test (Prick test, RAST or similar, clinical relevance of allergy, etc.) (only baseline)
Only on the baseline (12 months prior to Index date)
Secondary Outcomes (10)
Asthma Control Test (ACT)
From 12 months before index date (defined as the date of treatment initiation with tezepelumab) until the end of the follow up which will start after index date and will last up to inclusion (the period will last 9-15 months depending on inclusion date)
Lung function measurements
From 12 months before index date (defined as the date of treatment initiation with tezepelumab) until the end of the follow up which will start after index date and will last up to inclusion (the period will last 9-15 months depending on inclusion date)
FeNO (ppb)
From 12 months before index date (defined as the date of treatment initiation with tezepelumab) until the end of the follow up which will start after index date and will last up to inclusion (the period will last 9-15 months depending on inclusion date)
Blood neutrophil count (109 /L, mm^3)
From 12 months before index date (defined as the date of treatment initiation with tezepelumab) until the end of the follow up which will start after index date and will last up to inclusion (the period will last 9-15 months depending on inclusion date)
IgE (IU/mL)
From 12 months before index date (defined as the date of treatment initiation with tezepelumab) until the end of the follow up which will start after index date and will last up to inclusion (the period will last 9-15 months depending on inclusion date)
- +5 more secondary outcomes
Eligibility Criteria
Study population will consist of all the patients ≥ 12 years old who have received tezepelumab according to the usual clinical practice under the discretion of the physician according with the European SmPc and the reimbursement conditions in Spain between October 1st 2023 and 12 months before the site initiation, who meet all the inclusion criteria and none of the exclusion criteria
You may qualify if:
- Patients who received at least 1 tezepelumab dose after commercialization in Spain diagnosed with severe asthma who are inadequately controlled with high-dose inhaled corticosteroids and a long-acting β2-agonist ± additional medications for asthma control.
- Patients aged ≥12 years at the index date.
- Patients with continuous enrolment in the data source for at least 12-months before the index date.
- Patients with at least three months of continuous enrolment in the data source after the index date.
You may not qualify if:
- Patients who received tezepelumab or any biologic drug for the treatment of asthma in a clinical trial at any time during the 12-months prior to the index date\*.
- Patients who had initiated 3 or more non-tezepelumab biologic treatment (omalizumab, mepolizumab, reslizumab, benralizumab and dupilumab) for severe asthma at any time prior to the index date).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- AstraZenecalead
Study Sites (12)
Research Site
Andalucia, Spain
Research Site
C. Valenciana, Spain
Research Site
C. Y Leon, Spain
Research Site
Cantabria, Spain
Research Site
Castilla La Mancha, Spain
Research Site
Cataluna, Spain
Research Site
Extremadura, Spain
Research Site
Galicia, Spain
Research Site
Islas Canarias, Spain
Research Site
Madrid, Spain
Research Site
Navarra, Spain
Research Site
Pais Vasco, Spain
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 4, 2025
First Posted
June 10, 2025
Study Start
June 23, 2025
Primary Completion
December 19, 2025
Study Completion
December 19, 2025
Last Updated
January 12, 2026
Record last verified: 2026-01
Data Sharing
- IPD Sharing
- Will share
- Time Frame
- AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA PhRMA Data Sharing Principles. For details of our timelines, please rerefer to our disclosure commitment at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
- Access Criteria
- When a request has been approved AstraZeneca will provide access to the anonymized individual patient-level data via secure research environment Vivli.org. Signed Data Usage Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information.
Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal Vivli.org. All requests will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure. Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.