AzTrials
AzTrials

Chronic Obstructive Pulmonary DiseaseCASCADENCT01074515

Chronic Obstructive Pulmonary Disease (COPD) Activity: Serotonin Transporter (SERT), Cytokines and Depression (CASCADE Study)

An observational study of Chronic Obstructive Pulmonary Disease, run by University of Washington at 4 sites in United States.

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 The sponsor has not verified this record for over two years, so it may be out of date.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

Trial summary

The goal of the study is to look at how genes and certain chemicals in the body are related to depression and chronic obstructive pulmonary disease. Read more about this study

Who is it for?
Ages 40 years and older
Conditions the study is for
Chronic Obstructive Pulmonary Disease
How many people
350 participants
Where
4 sitesUnited States
Study dates
Feb 2010to Feb 2016
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: Pulmonary and primary care clinics and community sample

Who may be able to join

  • Diagnosis of COPD confirmed by the following: 1) FEV1/FVC < 70%; 2) Moderate to very severe disease by GOLD criteria (FEV1 <65%); 2) Age > 40 years; and 3) A significant history of current or past cigarette smoking (> 10 pack-years);
  • Stable disease with no acute exacerbations of COPD in the past 4 weeks;
  • Ability to speak, read and write English

Who cannot join

  • Acute COPD exacerbation within the past 4 weeks (temp exclusion)
  • Chronic obstructive lung disorders unrelated to COPD: asthma, bronchiectasis, cystic fibrosis
  • Idiopathic Pulmonary Fibrosis
  • Congestive Heart Failure
  • Chronic renal failure requiring dialysis
  • Primary pulmonary vascular disease
Show all 15Show fewer
  • Chronic inflammatory, infectious or auto-immune disease, e.g. osteomyelitis, crohn's disease or rheumatoid arthritis
  • Chronic liver disease
  • Metastatic cancer
  • Chronic antibiotic use or ongoing infection
  • Chronic oral prednisone use
  • Moderate to severe dementia
  • Severe primary mental illness, e.g. schizophrenia, bipolar disease, severe obsessive compulsive disorder
  • <2 years life expectancy
  • History of fainting with spirometry

Trial locations and contacts

4 sites in 1 country.

United States4 sites
  • South Texas Veterans Health Care System

    San Antonio, Texas, 78229

  • The University of Texas Health Science Center at San Antonio

    San Antonio, Texas, 78229

  • Puget Sound Veterans Administration Health Care System

    Seattle, Washington, 98108

  • University of Washington

    Seattle, Washington, 98195

Other trials in United States

About this study

Official title: Depression and Functional Outcomes in COPD: Impact of Genetics and Inflammation

The goal of the study is to look at how genes and certain chemicals in the body are related to depression and chronic obstructive pulmonary disease.

Read the detailed description

Depression is highly prevalent among patients with chronic obstructive pulmonary disease (COPD) and is associated with adverse clinical outcomes. The overall goal of this proposal is to examine the impact of inflammation and genetic risk factors on depression in patients with severe COPD, and to assess the combined effects of inflammation, genetics, and depression on changes in functional outcomes. There is increasing evidence that COPD is associated with systemic inflammation that impacts other organ systems. High levels of systemic inflammatory markers have also been linked to increased risk of depression in both healthy and chronically ill populations. The neurotransmitter serotonin which is involved in the pathophysiology of affective disorders is regulated by the serotonin transporter (SERT) that controls reuptake of serotonin at brain synapses. Recent studies report that SERT polymorphisms are associated with depression, suggesting that variants of this gene may be important in determining whether patients with COPD will develop depression during the course of their disease. The preliminary data linking SERT polymorphisms with depression and data suggesting a relationship between inflammation, depression and COPD strongly argue for a large scale prospective study to critically test these relationships. Therefore, the aims of this prospective study of patients with moderate to very severe COPD are to: 1) Examine the relationship between SERT polymorphisms with depression; 2) Examine the bi-directional longitudinal relationship between markers of systemic inflammation (CRP, IL-1ra, IL-6, IL-12, TNF-α, and IFN-γ) and depressive symptoms in COPD, and explore the role of exacerbations and SERT genotype in this relationship; and 3) Determine the relationship of depression, inflammation, and SERT genotype with decline in functional outcomes (six minute walk test distance, physical activity measured with accelerometers, dyspnea severity, and health related quality of life) in COPD over 2 years. Patients with COPD GOLD Stages II-IV (n=350) will be recruited from two clinical sites over 30 months. Assessments at baseline, year 1 and year 2 will include: blood samples for genotyping (5-HTTLPR, STin2 VNTR, and rs25331) and cytokine assays (CRP, IL-1ra, IL-6, IL-12, TNF-α, and IFN-γ), spirometry, assessment of depression, functional capacity (six minute walk test), performance (physical activity derived from accelerometry), dyspnea, and health related quality of life (HRQL). We will use advanced longitudinal statistical techniques, structural equations modeling and latent growth models, to assess the dynamics of change in depression, inflammation, and functional status as posited by our models as these processes unfold over time.

Keywords
COPD, Depression, Inflammation, Genetics, Functioning, Dyspnea, Physical activity
Medical subject headings
Pulmonary Disease, Chronic Obstructive, Depression, Inflammation, Dyspnea, Motor Activity

What is being measured

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

  1. Depression

    Measured: 1 year & 2 year

Secondary outcomes (4)
  1. Physical activity by accelerometry

    Measured: 1 year & 2 year

  2. Dyspnea

    Measured: 1 year & 2 year

  3. Health related quality of life

    Measured: 1 year & 2 year

  4. Six Minute Walk Distance

    Measured: 1 year & 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 posted24 Feb 2010 (estimated)
  2. Study startFeb 2010
  3. Primary completionFeb 2016 (estimated)
  4. Study completionFeb 2016 (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
350 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01074515
Sponsor's protocol ID
37332-B
Other IDs
R01HL093146-01A2
Acronym
CASCADE
Status last verified
Dec 2015
First submitted
11 Feb 2010
Last updated
3 Dec 2015
Results posted
No
Data monitoring committee
No

Publications

  • Chen Z, Fan VS, Belza B, Pike K, Nguyen HQ. Association between Social Support and Self-Care Behaviors in Adults with Chronic Obstructive Pulmonary Disease. Ann Am Thorac Soc. 2017 Sep;14(9):1419-1427. doi: 10.1513/AnnalsATS.201701-026OC.

    PubMed 28719225
  • Nguyen HQ, Herting JR, Pike KC, Gharib SA, Matute-Bello G, Borson S, Kohen R, Adams SG, Fan VS. Symptom profiles and inflammatory markers in moderate to severe COPD. BMC Pulm Med. 2016 Dec 3;16(1):173. doi: 10.1186/s12890-016-0330-1.

    PubMed 27914470
  • Nguyen HQ, Fan VS, Herting J, Lee J, Fu M, Chen Z, Borson S, Kohen R, Matute-Bello G, Pagalilauan G, Adams SG. Patients with COPD with higher levels of anxiety are more physically active. Chest. 2013 Jul;144(1):145-151. doi: 10.1378/chest.12-1873.

    PubMed 23370503

Questions about this trial

What is this clinical trial studying?

An observational study of Chronic Obstructive Pulmonary Disease, run by University of Washington at 4 sites in United States.

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 15 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 3 Dec 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in United States. 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?

Depression (time frame: 1 year & 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 NCT01074515, which also lists 3 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 3 Dec 2015.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in