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Chronic Obstructive Pulmonary DiseaseNCT02903043

Expression of miR-204 and Consequences on Capillarization in Limb Muscles of Patients With COPD

An observational study of Chronic Obstructive Pulmonary Disease, run by Laval University at 1 site in Canada.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Limb muscle dysfunction, characterized by loss of capillaries, is amongst the most troublesome systemic consequences of chronic obstructive pulmonary disease (COPD) leading to poor functional status and premature mortality. Read more about this study

Who is it for?
Ages 50 to 80 yearsHealthy volunteers can take part
Conditions the study is for
Chronic Obstructive Pulmonary Disease
How many people
100 participants
Where
1 siteCanada
Study dates
Feb 2013to Feb 2018
How long will I take part?
1 Day
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 50 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Patients with COPD

Who may be able to join

  • COPD (FEV1/FVC < 0.70)
  • Healthy subjects: no evidence of airways obstruction (FEV1/FVC > 0.70 and FEV1 > 0.80 predicted)
  • Smoking history > 10 pack-years
  • Ex-smoker >6 months

Who cannot join

  • Chronic hypoxemia and/or hypercapnia (PaO2 < 60 mmHg or SpO2 < 88% at rest and/or PaCO2 > 45 mmHg)
  • Recent exacerbation or oral corticosteroids (< 2 months)
  • Recent cancer (< 3 years)
  • Diabetes
  • Myopathy, neuromuscular, neurological or articular diseases
  • Kidney disease
Show all 10Show fewer
  • Other respiratory diseases
  • Unstable cardiac disease
  • Physical activity score > 9 in the Voorips questionnaire
  • BMI > 30

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Institut universitaire de cardiologie et de pneumologie de Québec

    Québec, G1V 4G5

Other trials in Canada

About this study

Official title: Expression of miR-204 and Consequences on Capillarization in Limb Muscles of Patients With Chronic Obstructive Pulmonary Disease

Limb muscle dysfunction, characterized by loss of capillaries, is amongst the most troublesome systemic consequences of chronic obstructive pulmonary disease (COPD) leading to poor functional status and premature mortality.

One prevailing hypothesis stipulates that modification in the expression of miR-204 leads to change the regulation of angiogenesis in vastus lateralis of patients with COPD when compared to controls.

Read the detailed description

The investigators objective is to investigate the impact of COPD on key signaling pathways involved in the muscle angiogenesis. Mild to severe COPD patients and healthy controls will be recruited. All of the investigators patients will undergo a thorough baseline assessment in pulmonary capacity and body composition. Blood sampling and biopsy of the quadriceps will be done. Key proteins and microRNAs of signaling intramuscular pathways involved in angiogenesis will be measured in the quadriceps.

Keywords
MicroRNAs, Angiogenesis, Skeletal muscle, COPD
Medical subject headings
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 NCT02903043
Study groupRoleWhat they receive
COPD patientsQuadriceps biopsies will be done. No drug administration.
Healthy controlsQuadriceps biopsies will be done. No drug administration.

What is being measured

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

  1. miR-204 in limb muscles in patients with COPD

    i)To measure miR-204 level in the quadriceps of patients with COPD in comparison to controls.

    ii) To study possible involvement of miR-204 on pathways regulating angiogenesis and on muscle microcirculation in these individuals.

    Measured: At baseline (COPD patients in a stable state of the disease)

Secondary outcomes (1)
  1. microRNAs in limb muscles of patients with COPD

    1. To measure microRNAs levels in the quadriceps of patients with COPD in comparison to controls. ii) To study possible involvement of these microRNAs on pathways regulating myogenesis, angiogenesis and on muscle microcirculation in these individuals.

    Measured: At baseline (COPD patients in a stable state of the disease)

Timeline

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

  1. First posted16 Sep 2016 (estimated)
  2. Study startFeb 2013
  3. Primary completionApr 2015
  4. Study completionFeb 2018 (estimated)

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
100 participants (estimated)
Target duration
1 Day
IDs, dates and publications
ClinicalTrials.gov ID
NCT02903043
Sponsor's protocol ID
MIR-20895
Status last verified
May 2017
First submitted
9 Apr 2015
Last updated
10 May 2017
Results posted
No
Data monitoring committee
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Chronic Obstructive Pulmonary Disease, run by Laval University at 1 site in Canada.

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 4 inclusion and 10 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: status not confirmed, as of the sponsor's last update on 10 May 2017. 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 Canada. 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?

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?

miR-204 in limb muscles in patients with COPD (time frame: At baseline (COPD patients in a stable state of the disease)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 10 May 2017.

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