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AsthmaNCT04448262

Bronchial Asthma and Diabetes: Impact on Bronchial Inflammation and Exercise Capacity

An observational study of Asthma and Diabete Type 2, run by Istituti Clinici Scientifici Maugeri SpA at 1 site in Italy.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Type 2 diabetes is the most common form of diabetes and according to several studies, even lung can represent another target of the diabetic disease. Asthmatic patients often show comorbidities and obesity is one of the main.Several studies in literature suggest that patients with higher Body Mass Index (i.e. Read more about this study

Who is it for?
Ages 18 to 85 years
Conditions the study is for
Asthma, Diabete Type 2
What is being tested?
data collection
How many people
39 participants
Where
1 siteItaly
Study dates
10 Jul 2019to 12 Jan 2024
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Asthmatic patients will be evaluated and enrolled during outpatients follow-up visits at the ICS Institute Maugeri of Tradate, type II diabetic patients at the Galmarini Hospital of Tradate, while patients with concomitant diagnosis of asthma and type II diabetes will be evaluated and enrolled and enrolled in both the two structures. 20 patients per group will be the sample size

Who may be able to join

  • Diagnosis of bronchial asthma according to the GINA 2018 guideline
  • Clinical stability of asthmatic disease
  • Diagnosis of Type II diabetes according to the last Italian guidelines (1) and HbA1c < 9%, 54-75mmol/mol
  • Concomitant diagnosis of bronchial asthma (12) and diabetes according to the described guidelines
  • Age ≥18 years
  • Not-smokers, smokers or ex-smokers with pack/year ≤10
  • Patients able to collaborate in the required procedures and who have signed the informed consent

Who cannot join

  • Bronchial asthma and/or diabetes with scarce clinical control.
  • Diagnosis of cognitive impairment
  • Not able to carry out study procedures

Trial locations and contacts

1 site in 1 country.

Italy1 site
  • Istituti Clinici Maugeri Pneumologia

    Tradate, Lombardy, 21049

Other trials in Italy

About this study

Type 2 diabetes is the most common form of diabetes and according to several studies, even lung can represent another target of the diabetic disease. Asthmatic patients often show comorbidities and obesity is one of the main.Several studies in literature suggest that patients with higher Body Mass Index (i.e. overweight and obese) have a greater risk of developing asthma compared to normal weight subjects. Considering inflammation, asthma is usually characterized by an increase of eosinophils in the airways and by a Th2 type inflammation, while a immunological type Th1 switch systemically characterizes diabetes. Even asthmatic patients, especially if diabetic, might have an increase of glucose in their airways, that could favourite or feed an inflammatory/infective state. Up to-day there are not in literature studies that have investigated the airways inflammatory pattern and the exercise capacity in relation to functional characteristics in diabetic patients affected by asthma.

Read the detailed description

The basic therapy for asthma treatment involves the use of corticosteroids that can lead to the development of glucose intolerance and to the onset of diabetes. Moreover, several works in literature highlight the fact that patients with diagnosis of both asthma and diabetes have a scarcer glycaemic control, a reduced life expectancy, and a higher risk of pneumonia when compared to patients with only asthma or only diabetes.

However, in the last years the evaluation of the inflammatory patterns in asthmatic patients has revealed a heterogeneity of the inflammation, with patients characterized by neutrophilic phenotype, mixed granulocytic or without a well-defined inflammatory component (pauci-granulocytic phenotype).On the other side, a immunological type Th1 switch systemically characterizes diabetes. The impact of diabetes, therefore, as a comorbidity in asthmatic patients could influence the inflammatory status of airways. Moreover, studies have reported that glucose is higher in the airways of subjects affected by chronic obstructive pulmonary disease and it correlates with bacterial and viral load compared to healthy controls. Even asthmatic patients, especially if diabetic, might have an increase of glucose in their airways, that could favourite or feed an inflammatory/infective state. Although physical exercise is able to reduce the level of systemic inflammation, improving asthma symptoms and glycaemic control, it is well known that asthmatic and diabetic patients tend to lead a more sedentary life style compared to healthy subjects.A limiting factor that bonds the two pathologies is obesity, since the gain of weight causes exacerbation of respiratory symptoms, resulting in lower effort tolerance.

Up to-day there are not in literature studies that have investigated the airways inflammatory pattern and the exercise capacity in relation to functional characteristics in diabetic patients affected by asthma.

Aim of the study is to characterize the airways inflammatory pattern of patients affected by bronchial asthma, patients affected by type II diabetes and patients with concomitant diagnosis of asthma and diabetes by using induced sputum. Secondary objective is to characterize the exercise capacity in relation to the functional and anthropometric characteristics of patients with diabetes, with asthma and diabetes, compared to patients with only asthma.

Being tested
data collection
Keywords
eosinophils, symptoms, lung
Medical subject headings
Asthma, Diabetes Mellitus, Type 2

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • data collectionOther

    collection of data about bronchial and systemic inflammation, quality of life, lung function

Study groups in NCT04448262
Study groupRoleWhat they receive
G1 AsthmaDiagnosis of bronchial asthma according to the Global Initiative for Asthma (GINA) 2018 guideline Clinical stability of asthmatic disease Age ≥18 years Not-smokers, smokers or ex-smokers with pack/year ≤10
Receives: Other: data collection
G2 DiabetesDiagnosis of Type II diabetes according to the last Italian guidelines and HbA1c < 9%, 54-75mmol/mol Age ≥18 years Not-smokers, smokers or ex-smokers with pack/year ≤10
Receives: Other: data collection
G3 Asthma plus diabetesConcomitant diagnosis of bronchial asthma according to the GINA 2018 guideline, Clinical stability of asthmatic disease and Diagnosis of Type II diabetes according to the last Italian guidelines and HbA1c < 9%, 54-75mmol/mol Age ≥18 years Not-smokers, smokers or ex-smokers with pack/year ≤10
Receives: Other: data collection

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. inflammatory cells

    macrophages%,neutrophils%, eosinophils%, lymphocytes%

    Measured: baseline

Secondary outcomes (6)
  1. Expiratory muscles strength

    Maximal inspiratory pressure -MIP, Maximal expiratory pressure -MEP

    Measured: baseline

  2. Functional capacity of exercise

    6 minutes walking test-6MWT

    Measured: baseline

  3. Dyspnoea and muscular fatigue

    Dyspnoea and muscle fatigue measured with Modified Borg Scale (0-10, where 0 is better)

    Measured: baseline

  4. peripheral muscle strength

    Five Sit to Stand Test-5STS

    Measured: baseline

  5. Health related Quality of life

    St. George Respiratory Questionnaire-SGRQ, scores range from 0 to 100, with higher scores indicating more limitations

    Measured: baseline

  6. perceived Health state

    Chronic Obstructive Pulmonary Disease Assessment test-CAT, Scores range from 0 to 40, with higher scores indicating worse health state

    Measured: baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Jun 2020
  2. Study start10 Jul 2019
  3. Primary completion1 Jan 2024
  4. Study completion12 Jan 2024

Why it stopped: technical issue

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
39 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04448262
Sponsor's protocol ID
2290 CE
Status last verified
Jan 2024
First submitted
7 Apr 2020
Last updated
8 Feb 2024
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Vracko R, Thorning D, Huang TW. Basal lamina of alveolar epithelium and capillaries: quantitative changes with aging and in diabetes mellitus. Am Rev Respir Dis. 1979 Nov;120(5):973-83. doi: 10.1164/arrd.1979.120.5.973.

    PubMed 507532
  • Visca D, Pignatti P, Spanevello A, Lucini E, La Rocca E. Relationship between diabetes and respiratory diseases-Clinical and therapeutic aspects. Pharmacol Res. 2018 Nov;137:230-235. doi: 10.1016/j.phrs.2018.10.008. Epub 2018 Oct 9.

    PubMed 30312663
  • Cardet JC, Ash S, Kusa T, Camargo CA Jr, Israel E. Insulin resistance modifies the association between obesity and current asthma in adults. Eur Respir J. 2016 Aug;48(2):403-10. doi: 10.1183/13993003.00246-2016. Epub 2016 Apr 21.

    PubMed 27103388
  • Mallia P, Webber J, Gill SK, Trujillo-Torralbo MB, Calderazzo MA, Finney L, Bakhsoliani E, Farne H, Singanayagam A, Footitt J, Hewitt R, Kebadze T, Aniscenko J, Padmanaban V, Molyneaux PL, Adcock IM, Barnes PJ, Ito K, Elkin SL, Kon OM, Cookson WO, Moffat MF, Johnston SL, Tregoning JS. Role of airway glucose in bacterial infections in patients with chronic obstructive pulmonary disease. J Allergy Clin Immunol. 2018 Sep;142(3):815-823.e6. doi: 10.1016/j.jaci.2017.10.017. Epub 2018 Jan 5.

    PubMed 29310905

Questions about this trial

What is this clinical trial studying?

An observational study of Asthma and Diabete Type 2, run by Istituti Clinici Scientifici Maugeri SpA at 1 site in Italy.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 8 Feb 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was stopped early (reason given: technical issue). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

inflammatory cells (time frame: baseline). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04448262, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Feb 2024.

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