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AsthmaNORMNCT00848406

A Study to Obtain Normal Values of Inflammatory Variables From Healthy Subjects

An observational study of Asthma and Copd, run by University Medical Center Groningen at 1 site in Netherlands.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Smoking induces an inflammatory reaction in the airways which can ultimately result in persistent damage and the development of a Chronic Obstructive Pulmonary Disease (COPD). However, not all subjects who smoke end up with COPD. After long-term smoking, approximately 20% of subjects develop COPD. Read more about this study

Who is it for?
Ages 18 to 80 yearsHealthy volunteers can take part
Conditions the study is for
Asthma, Copd
How many people
120 participants
Where
1 siteNetherlands
Study dates
Apr 2009to Jan 2015
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 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Healthy individuals

Who may be able to join

  • Have not smoked during the last year.
  • Have never smoked for as long as a year.
  • Have < 0.5 packyear.

Who cannot join

  • Persons who used inhaled or oral corticosteroids during >5 years, or within the last 5 years.
  • FEV1 <1.2 L
  • A subject is not eligible to enter and participate if he does not agree that we inform his general practicioner about participation in the study and also about any unexpected finding during the study.
  • Upper respiratory tract infection (e.g. colds), within 2 months.
  • Pregnancy, or the possibility of being pregnant (i.e. women who do not use adequate anticonception as judged by the investigator).
  • Malignancy within the past 5 years (except for squamous or basal cell carcinoma of the skin that has been treated with no evidence of recurrence).
Show all 9Show fewer
  • Signs or symptoms of any other concomitant disease that, in the eyes of the investigator, can interfere with the study results.
  • Known recent substance abuse (drug or alcohol).
  • Claustrophobia.

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • University Medical Centre Groningen

    Groningen, Provincie Groningen, 9713GZ

Other trials in Netherlands

About this study

Official title: An Observational Study to Obtain Normal Values of Inflammatory Variables in Induced Sputum, Exhaled Breath, and Bronchial Biopsies From Healthy Smoking and Non-smoking Individuals

Smoking induces an inflammatory reaction in the airways which can ultimately result in persistent damage and the development of a Chronic Obstructive Pulmonary Disease (COPD). However, not all subjects who smoke end up with COPD. After long-term smoking, approximately 20% of subjects develop COPD. At this time, it is unclear why some subjects develop COPD, whereas others maintain a normal lung function.

In addition, smoking has important consequences in asthma. Patients with asthma who smoke have a more severe asthma and more often experience an asthma exacerbation. In addition, it has been shown that inhaled corticosteroids are less effective in smoking asthmatics.

With this research project, the researchers will investigate the effects of smoking on the airways. To this end, the researchers will compare markers of airway inflammation, lung function and symptoms between healthy smokers and non-smokers of varying age. In addition, the researchers will compare those healthy subjects with patients with asthma and COPD which are characterized in earlier studies.

Conditions
Asthma, Copd
Keywords
bronchial, COPD, Asthma, sputum, biopsies
Medical subject headings
Asthma, Pulmonary Disease, Chronic Obstructive

What participants receive

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

Study groups in NCT00848406
Study groupRoleWhat they receive
130 individuals ≤ 40 years, who currently smoke ≥ 10 cigarettes/day and > 10 packyears
230 individuals ≤ 40 years, who have not smoked during the last year, have never smoked for as long as a year (i.e. at least one cigarette per day or one cigar per week, AND have < 0.5 packyear.
330 individuals above 40 years, who currently smoke ≥ 10 cigarettes per day, and > 20 packyears.
430 individuals above 40 years, who have not smoked during the last year, have never smoked for as long as a year, and have < 0.5 packyear.

What is being measured

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

  1. parameters for inflammation and remodelling in airway tissue

    Measured: The duration of the study is estimated on 2 year

Secondary outcomes (1)
  1. Induced sputum, PC20 AMP, spirometrie, questionnaires, CT scan.

    Measured: 2 year

Timeline

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

  1. First posted20 Feb 2009 (estimated)
  2. Study startApr 2009
  3. Primary completionApr 2014
  4. Study completionJan 2015

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
120 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00848406
Sponsor's protocol ID
METc2009007
Acronym
NORM
Status last verified
Jan 2015
First submitted
19 Feb 2009
Last updated
16 Jan 2015
Results posted
No
Data monitoring committee
No

Publications

  • Nair GB, Galban CJ, Al-Katib S, Podolsky R, van den Berge M, Stevens C, Castillo E. An assessment of the correlation between robust CT-derived ventilation and pulmonary function test in a cohort with no respiratory symptoms. Br J Radiol. 2021 Feb 1;94(1118):20201218. doi: 10.1259/bjr.20201218. Epub 2020 Dec 15.

    PubMed 33320729
  • Faiz A, Imkamp K, van der Wiel E, Boudewijn IM, Koppelman GH, Brandsma CA, Kerstjens HAM, Timens W, Vroegop S, Pasma HR, Boersma WG, Wielders P, van den Elshout F, Mansour K, Steiling K, Spira A, Lenburg ME, Heijink IH, Postma DS, van den Berge M. Identifying a nasal gene expression signature associated with hyperinflation and treatment response in severe COPD. Sci Rep. 2020 Oct 15;10(1):17415. doi: 10.1038/s41598-020-72551-0.

    PubMed 33060632
  • Boudewijn IM, Faiz A, Steiling K, van der Wiel E, Telenga ED, Hoonhorst SJM, Ten Hacken NHT, Brandsma CA, Kerstjens HAM, Timens W, Heijink IH, Jonker MR, de Bruin HG, Sebastiaan Vroegop J, Pasma HR, Boersma WG, Wielders P, van den Elshout F, Mansour K, Spira A, Lenburg ME, Guryev V, Postma DS, van den Berge M. Nasal gene expression differentiates COPD from controls and overlaps bronchial gene expression. Respir Res. 2017 Dec 21;18(1):213. doi: 10.1186/s12931-017-0696-5.

    PubMed 29268739
  • Telenga ED, Oudkerk M, van Ooijen PM, Vliegenthart R, Ten Hacken NH, Postma DS, van den Berge M. Airway wall thickness on HRCT scans decreases with age and increases with smoking. BMC Pulm Med. 2017 Feb 1;17(1):27. doi: 10.1186/s12890-017-0363-0.

    PubMed 28143620
  • Hoonhorst SJ, Lo Tam Loi AT, Pouwels SD, Faiz A, Telenga ED, van den Berge M, Koenderman L, Lammers JW, Boezen HM, van Oosterhout AJ, Lodewijk ME, Timens W, Postma DS, Ten Hacken NH. Advanced glycation endproducts and their receptor in different body compartments in COPD. Respir Res. 2016 Apr 26;17:46. doi: 10.1186/s12931-016-0363-2.

    PubMed 27117828
  • Hoonhorst SJ, Lo Tam Loi AT, Hartman JE, Telenga ED, van den Berge M, Koenderman L, Lammers JW, Boezen HM, Postma DS, Ten Hacken NH. Advanced glycation end products in the skin are enhanced in COPD. Metabolism. 2014 Sep;63(9):1149-56. doi: 10.1016/j.metabol.2014.06.006. Epub 2014 Jun 13.

    PubMed 25034386
  • Hoonhorst SJ, ten Hacken NH, Lo Tam Loi AT, Koenderman L, Lammers JW, Telenga ED, Boezen HM, van den Berge M, Postma DS. Lower corticosteroid skin blanching response is associated with severe COPD. PLoS One. 2014 Mar 12;9(3):e91788. doi: 10.1371/journal.pone.0091788. eCollection 2014.

    PubMed 24622644

Questions about this trial

What is this clinical trial studying?

An observational study of Asthma and Copd, run by University Medical Center Groningen at 1 site in Netherlands.

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 3 inclusion and 9 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: finished, as of the sponsor's last update on 16 Jan 2015. 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 Netherlands. 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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

parameters for inflammation and remodelling in airway tissue (time frame: The duration of the study is estimated on 2 year). 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 NCT00848406, which also lists 7 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 16 Jan 2015; AzTrials last refreshed its copy on 31 Oct 2026.

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