Observational Retrospective Study To Characterize and Assess Clinical Outcomes of Patients Receiving Tezepelumab in the Framework Of Use in Special Situations Prior to Commercialisation in Spain
T-ROSS
1 other identifier
observational
33
1 country
14
Brief Summary
The aim of this study is to provide the first results on the use of tezepelumab under clinical practice conditions in severe asthma patients who participated in the "foreign medication supply" program in Spain.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Jun 2024
Shorter than P25 for all trials
14 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
May 23, 2024
CompletedStudy Start
First participant enrolled
June 17, 2024
CompletedFirst Posted
Study publicly available on registry
July 5, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 25, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
October 25, 2024
CompletedOctober 2, 2025
September 1, 2025
4 months
May 23, 2024
September 29, 2025
Conditions
Outcome Measures
Primary Outcomes (11)
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.)
12 months before index date and index date (date of treatment initiation with tezepelumab)
Number of respiratory infections and diseases in the previous 12 months and index date
In the previous 12 months and index date (date of treatment initiation with tezepelumab)
Exacerbations in the previous 12 months and Exacerbations from index date until all available follow-up (number and dates for each exacerbation episode)
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)
When available, lung function measurements including spirometry, Inspiratory Capacity, and bronchodilator reversibility test.
Lung function measurements including spirometry (FEV1(L), FVC(L), PEF(L/s), FEF25-75%(L/s), Inspiratory Capacity (IC) (L)), and bronchodilator reversibility test. From the spirometry measurements, the following will be calculated: FEV1/FVC ratio (%) and FEV1 % predicted (%)
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 Eosinophil count (109 /L, mm3 )
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; kU/mL; ng/mL (mg/L); ng/dL (ng/100mL); ng%)
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)
Allergy status (Prick test, RAST or similar, clinical relevance of allergy, etc.) (only baseline)
Only on the baseline (12 months prior to Index date)
Neutrophil count (10 9 /L, mm3 )
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)
Sputum biomarkers: sputum eosinophils (%); sputum neutrophils (%)
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)
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
Only on the index date (If no information referred to index date is available, latest available data before the index date)
Secondary Outcomes (4)
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)
Asthma Impairment and Risk Questionnaire (AIRQ)
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)
Asthma Quality of Life Questionnaire (AQLQ)
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)
MiniAQLQ
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)
Eligibility Criteria
Study population will consist of all the subjects ≥ 12 years old who have received tezepelumab in the "Foreign medication supply" (FMS) program in Spain. However, some patients may have received tezepelumab under "Foreign medication supply" program as well as marketed tezepelumab, but all of them started while FMS program was in place
You may qualify if:
- Subjects 12 years and older with severe asthma who were inadequately controlled with high dose inhaled corticosteroids plus another medicinal product
- Received at least one dose of tezepelumab under the FMS program, established according to Royal Decree 1015 / 2009 (prior to commercialization)
You may not qualify if:
- Subjects having received tezepelumab or any other biologic for the treatment of asthma in the context of a clinical trial at any time during the 12 months prior to the index date.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- AstraZenecalead
Study Sites (14)
Research Site
Alcázar de San Juan, Spain
Research Site
Almería, Spain
Research Site
Badajoz, Spain
Research Site
Bilbao, Spain
Research Site
Coslada, Spain
Research Site
Donostia / San Sebastian, Spain
Research Site
Fuenlabrada, Spain
Research Site
Gran Canaria, Spain
Research Site
Lugo, Spain
Research Site
Madrid, Spain
Research Site
Málaga, Spain
Research Site
Talavera de la Reina, Spain
Research Site
Torrejón de Ardoz, Spain
Research Site
Valencia, Spain
Related Links
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
May 23, 2024
First Posted
July 5, 2024
Study Start
June 17, 2024
Primary Completion
October 25, 2024
Study Completion
October 25, 2024
Last Updated
October 2, 2025
Record last verified: 2025-09