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Clinical, Inflammatory and Functional Evaluation of a Population of Severe and Obese Asthmatics: Follow up

NCT03532685 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 110

Last updated 2018-05-22

No results posted yet for this study

Summary

In the study of a population of severe asthmatics, not controlled despite the treatment conducted, it was possible to evidence 5 phenotypic groups of patients. According to the refractoriness of the response to treatment, severe asthma may be phenotype in some distinct groups.Other prospective study found a large proportion of severe asthmatics with persistent airway obstruction, despite optimized treatment and systematic follow-up. Small airway involvement and remodelling, characterized by bronchial muscle thickening, appear to be the main culprits for asthma severity and persistent obstruction in this population.A point of interest in the severe asthmatics cohort was the vast majority were female and there were a considerable number of obese. Recent reviews show that the more consistent division of phenotypes in patients with severe asthma is still based on 3 previously described criteria (presence of atopy, eosinophilia and age of onset of asthma) and a more recent criterion for the presence of multi-comorbidities. Heterogeneity is the rule, the presumption of a natural evolution of gravity is not confirmed and the overlap of clusters is frequent. The stability and natural history of the phenotypes is poorly understood, postulating that the inflammatory activation of the severe asma is multifactorial and may resemble that described in the oncology literature.To date, there are no markers that allow prediction of lung evolution of most patients with severe asthma, and which patients are at greater risk of developing persistent or accelerated loss airflow or lung function, factors determining the severity of asthma. It is also unclear whether and how much phenotype-based treatment impact on disease control and prognosis. Future studies will be instrumental in defining how and why. These phenotypes are evolving, leading to the disabling characteristics of severe asthma and what may be the more effective therapeutic approaches for these patients. Since the initiated research group from 2006 has an extensive clinical, functional, inflammatory, tomographic and morphological evaluation of a cohort of patients with severe asthma, the ideal scenario exists to advance the understanding and investigation of the evolution of this rare disease through standardized follow-up.

Conditions

Interventions

PROCEDURE

Bariatric

withdrawing a part of the stomach and may or may not be combined with bowel deviation

Sponsors & Collaborators

  • AstraZeneca

    collaborator INDUSTRY

  • University of Sao Paulo General Hospital

    lead OTHER

Principal Investigators

  • Alberto Cukier, M/D · Unversity of Sao Paulo - Pulmonary Division

Study Design

Allocation
NON_RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2018-05-31
Primary Completion
2018-05-31
Completion
2019-02-28

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03532685 on ClinicalTrials.gov