Prediction of Future Risk in Patients With Controlled Asthma

NCT ID: NCT01565031

Last Updated: 2012-03-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

338 participants

Study Classification

OBSERVATIONAL

Study Start Date

2012-05-31

Study Completion Date

2015-06-30

Brief Summary

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The optimal score to predict unfavourable outcome in well-controlled asthma patients who are undergoing a step-wise down-titration of their medication is still lacking. Thus, a study is warranted to prospectively develop a prognostic system -easy to perform (suitable for use in the clinical rather the research setting)- for asthmatic patients in this clinical setting.

HYPOTHESIS: A simple score system can accurately predict clinical deterioration of asthma in well-controlled patients who are undergoing a step-wise down-titration of their medication according to international guidelines.

METHODS The investigators designed a prospective, multicenter, observational study at five centers in cities across Spain.

The patients group (N = 225) will be evaluated to produce a clinical prediction rule for loss of control. The investigators will consider the following variables in the risk factor analysis: documented history of previous bronchial obstruction (FEV1/FVC \< 70%), coefficient of variation (CV) of morning peak expiratory flow (PEF), history of exacerbations, fraction of exhaled nitric oxide (FENO), Asthma control test (ACT), ACT item 3 and adherence.

The score model will be prospectively validated in an independent set of 113 patients.

Detailed Description

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Conditions

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Asthma

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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controlled asthmatics, down-titration

Adults (age between 18 and 80) with asthma under control (see definitions) during the last 3 months, treated with a combination of ICS and long-acting beta-agonist (LABA).

Step-wise down-titration according to international guidelines.

Intervention Type PROCEDURE

The medication will be adjusted according to each patient´s level of control. Depending on the state of control of asthma, the dose will be adjusted up or down (step-up therapy and step-down therapy, respectively) in accordance with GINA.

Interventions

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Step-wise down-titration according to international guidelines.

The medication will be adjusted according to each patient´s level of control. Depending on the state of control of asthma, the dose will be adjusted up or down (step-up therapy and step-down therapy, respectively) in accordance with GINA.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Adults (age between 18 and 80.
* Asthma under control during the last 3 months.
* Treated with a combination of ICS and long-acting beta-agonist (LABA.
* Classified as "moderate asthma" by their attending physician.

Exclusion Criteria

* Active smoking.
* Pregnancy.
* Treatment with oral corticosteroids, omalizumab or immunotherapy.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau

OTHER

Sponsor Role collaborator

Hospital Clinic of Barcelona

OTHER

Sponsor Role collaborator

Hospital Galdakao-Usansolo

OTHER_GOV

Sponsor Role collaborator

Complexo Hospitalario Universitario de A Coruña

OTHER

Sponsor Role collaborator

Luis Perez de Llano

OTHER

Sponsor Role lead

Responsible Party

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Luis Perez de Llano

MD, PhD.

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Luis Perez de Llano, Md, PhD

Role: PRINCIPAL_INVESTIGATOR

Servicio Galego de Saude

Locations

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Pneumology Service

Lugo, Lugo, Spain

Site Status

Countries

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Spain

Central Contacts

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Luis Perez de Llano, Md, PhD

Role: CONTACT

34 982296000

Other Identifiers

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HULA

Identifier Type: -

Identifier Source: org_study_id

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