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Coronary Artery DiseaseNCT01734629

Pulmonary Disease in Patients Referred for Coronary CT

An observational study of Coronary Artery Disease and Atheroscleroses, run by University of Sao Paulo General Hospital at 1 site in Brazil.

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

Several studies show an association between chronic obstructive pulmonary disease (COPD) and coronary artery disease (CAD). Besides risk factors such as smoking, both are associated with physical inactivity, advanced age and systemic inflammation The use of coronary computed tomography (CCT) with multiple detectors is… Read more about this study

Who is it for?
Ages 40 years and older
Conditions the study is for
Coronary Artery Disease, Atheroscleroses, COPD
How many people
205 participants
Where
1 siteBrazil
Study dates
Apr 2011to Dec 2014
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 40 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients over 40 years old refereed to coronary CT in the investigator´s institution.

Who may be able to join

  • Patients referred for coronary CT.
  • Age greater than 40 years

Who cannot join

  • History of myocardial revascularization (surgical or percutaneous)
  • Cognitive-functional incapacity to perform spirometry
  • Contraindication for administration of 400 mcg of albuterol
  • Acute myocardial infarction or unstable angina within 2 weeks
  • Angina pectoris class III or IV according to the Canadian Cardiovascular Society
  • Heart failure New York Heart Association class III or IV

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Heart Institute (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo

    São Paulo, São Paulo, 05403-000

Other trials in Brazil

About this study

Official title: Pulmonary Disease in Patients Referred for Coronary CT and Association Between Spirometric Abnormalities and Coronary Calcium Score.

Several studies show an association between chronic obstructive pulmonary disease (COPD) and coronary artery disease (CAD). Besides risk factors such as smoking, both are associated with physical inactivity, advanced age and systemic inflammation The use of coronary computed tomography (CCT) with multiple detectors is a diagnostic method for coronary disease, describing the anatomy and severity of arterial obstruction. One way of estimating the cardiovascular risk is coronary calcium score (CCS). Due to the association between COPD and CAD, it is likely that many patients with IHD diagnosed by CT have reduced lung function.

The aim of this observational study is to establish the correlation between the CCS and lung function. It will also correlate the presence of irreversible airway obstruction with significant coronary lesions.

Read more

Patients over 40 years referred to CCT who agree to participate in the study will perform a spirometry with bronchodilator and collect a blood sample to measure serum markers of inflammation and cardiovascular risk (glycemia, lipid profile, C reactive protein (CRP), tumor necrosis factor-alpha (TNF-Alpha) and fibrinogen). The data will be compared in the general population and in subgroups: smokers, former smokers and nonsmokers.

One year after the CCT patients will be contacted by the investigators and accessed for emergency room visits, hospital admissions and fatal or nonfatal coronary or respiratory events.

The investigators hypothesis is that reduced lung function is independently associated with elevated CCS and is, also a risk factor for increased hospital admission and coronary events.

The concomitant assessment of lung function and CCS can contribute knowledge about the epidemiological association between pulmonary disease and CAD. This can also add to evidence for the use of spirometry as a marker of cardiovascular risk.

Keywords
Coronary Disease, COPD, Spirometry, Coronary tomography
Medical subject headings
Coronary Artery Disease, Atherosclerosis, Pulmonary Disease, Chronic Obstructive, Respiratory Tract Diseases, Coronary Disease

What participants receive

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

Study groups in NCT01734629
Study groupRoleWhat they receive
Coronary CT Spirometry CohortPatients refereed to coronary CT enrolled in the study.

What is being measured

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

  1. Coronary Calcium Score

    Coronary calcium score is a measurement obtained in coronary computer tomography. The results will be compared between group with and without spirometric abnormalities.

    Measured: Baseline

Secondary outcomes (4)
  1. Coronary obstruction on CT

    Presence or absence of coronary obstruction and it´s quantification by Duke score will be compared between group with and without spirometric abnormality.

    Measured: Baseline

  2. Hospital Admissions

    Hospital admissions will be accessed after one year from enrollment and compared between groups

    Measured: 1 year

  3. ER visits

    ER visits will be accessed after one year from enrollment and compared between groups

    Measured: 1 year

  4. Fatal and non fatal cardiac or respiratory events

    Fatal and non fatal cardiac or respiratory events will be accessed after one year from enrollment and compared between groups

    Measured: 1 year

Timeline

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

  1. First posted27 Nov 2012 (estimated)
  2. Study startApr 2011
  3. Primary completionDec 2013
  4. Study completionDec 2014

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
205 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01734629
Sponsor's protocol ID
2011/02814-0 FAPESP
Other IDs
0503/11
Status last verified
Nov 2013
First submitted
21 Nov 2012
Last updated
3 Dec 2014
Results posted
No
Data monitoring committee
Yes

Publications

  • Fernandes FLA, Carvalho-Pinto RM, Stelmach R, Salge JM, Rochitte CE, Souza ECDS, Pessi JD, Cukier A. Spirometry in patients screened for coronary artery disease: is it useful? J Bras Pneumol. 2018 Jul-Aug;44(4):299-306. doi: 10.1590/S1806-37562017000000276.

    PubMed 30328928

Questions about this trial

What is this clinical trial studying?

An observational study of Coronary Artery Disease and Atheroscleroses, run by University of Sao Paulo General Hospital at 1 site in Brazil.

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 2 inclusion and 6 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 3 Dec 2014. 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 Brazil. 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?

Coronary Calcium Score (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 NCT01734629, which also lists 1 linked publication.

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 3 Dec 2014.

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