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Extrapulmonary Effects of Cystic Fibrosis on Physical Activity of Adult Patients. (MUCO-DAP)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01848392
Recruitment Status : Completed
First Posted : May 7, 2013
Last Update Posted : August 1, 2017
Information provided by (Responsible Party):
Assistance Publique - Hôpitaux de Paris

Brief Summary:

Physical activity seems to be a prognostic factor for quality of life and survival in patients with cystic fibrosis (CF). Whereas their exercise capacity has been assessed through medical examination, their daily physical activity has been little studied. Activity monitors have measured physical activity only in a few studies which considered mainly respiratory status and more recently bone mineral density and body composition. Determinants of physical activity in patients with CF remain largely unknown.

The objective of this study is to measure daily physical activity with activity monitors in adult patients with CF and to investigate the determinants of physical activity, with a focus on extra-respiratory factors (nutritional status, diabetes, bone mineralization, anxiety and/or depression, cardiac impairment).

Seventy adult patients with CF, regularly cared at the Cochin adult CF centre, will be recruited in a stable period during their annual review. During this assessment, laboratory tests will be carried out (especially parameters for nutritional status), as well as measurement of body composition and bone mineral density, respiratory function tests and a 6 minute walk test, and echocardiography. Patients will wear for 7 consecutive days a multi-sensor armband SenseWear on the arm, to assess the intensity of physical activity in metabolic equivalents (METS) and steps per day. Finally, patients will complete three self-administered questionnaires: Quality of Life (CFQ14 +), hospital anxiety depression scale and physical activity.

After a descriptive analysis of the study cohort, we will study qualitative and quantitative criteria related to physical activity (assessed quantitatively by the number of steps/day or metabolic equivalents).

Linear regression models will then be developed to assess the independent factors associated with physical activity, adjusting for different variables of interest related to patients demographic, behavioral, clinical (respiratory and non-respiratory ) and biological parameters. Conversely, the "predictive" independent aspect of physical activity will be studied according to respiratory function, nutritional status and quality of life.

Condition or disease
Cystic Fibrosis

Detailed Description:

Ambulatory adult CF patients are recruited at time of their yearly evaluation.

Phenotypic patients' characteristics Age, gender, CFTR genotype, pancreatic status (presence or absence of exocrine pancreatic insufficiency), number of IV antibiotic courses and number of hospitalization over the previous year, are reported.

Physical activity measurement Physical activity is measured over 7 consecutive days using a multisensor armband (SenseWear Pro Armband; BodyMedia, Inc.,Pittsburgh, PA) that is worn on the upper right arm over the triceps muscle. It incorporates a biaxial accelerometer that records steps per day, and physiologic indicators of energy expenditure that enable the investigator to determine the physical activity level.

Evaluation of respiratory function and cardiovascular status Patients will perform a respiratory function test to evaluate FVC and FEV1 and six minutes walk test. Arterial blood gases will be done at the beginning and at the end of walk and the walking distance will be indicated in meters.

Echocardiography will be performed to look for left or right cardiac dysfunction and measure systolic pulmonary artery pressure. N-terminal pro-B-type natriuretic peptide (NT-pro-BNP) will be used as a systemic biomarker of heart failure.

Bone mineral density (BMD) and body composition They are measured by X-ray absorptiometry (DEXA) on the lumbar spine, femur and whole body, and measurement of lean and fat mass (Lunar Prodigy).

Nutritional evaluation Weight and height are measured and body mass index (BMI) is calculated. As part of the annual dietary assessment, there will be an evaluation of the amount of ingested nitrogen.

Blood will be drawn to measure: albumin, prealbumin, vitamin E, vitamin A and vitamin 25(OH)D3, HbA1c. C-reactive protein and fibrinogen will be measured as indicators of inflammation.

Urinalysis will measure: creatinine, nitrogen and 3-methylhistidine. Oral glucose tolerance test will be performed (fasting blood glucose and blood glucose 2 hours after ingesting 75 g of glucose) in pancreatic insufficient patients with unknown diabetes.

Self-administered questionnaires

Patients will answer 3 questionnaires:

  1. quality of life CFQ14+ questionnaire
  2. hospital anxiety depression (HAD) scale validated in French
  3. Baecke physical activity questionnaire

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Study Type : Observational
Actual Enrollment : 80 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Extra Pulmonary Determinants of Physical Activity in Adults With Cystic Fibrosis.
Actual Study Start Date : February 21, 2013
Actual Primary Completion Date : July 30, 2014
Actual Study Completion Date : March 30, 2016

physical activity CF cohort
adult patients with CF at time of their yearly assessment at Cochin adult CF centre

Primary Outcome Measures :
  1. Steps per day [ Time Frame: Day 7 ]
    The armband indicates the mean number of steps per day over a 7-day period

  2. Physical activity level [ Time Frame: Day 7 ]
    The investigators determine the physical activity level by dividing total daily energy expenditure by whole-night sleeping energy expenditure

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Adult patients with CF cared at Cochin adult CF centre, Paris

Inclusion Criteria:

  • Patients with CF (positive sweat test or 2 disease causing CFTR mutations)
  • Aged 18 or older
  • Regularly cared at Cochin adult CF centre
  • In clinical stable status

Exclusion Criteria:

  • Pulmonary exacerbation in the 4 previous weeks
  • IV antibiotic course for pulmonary exacerbation in the 2 previous weeks
  • Pregnancy in female patients
  • Patient with history of lung transplantation
  • Patient on a waiting list for lung transplantation
  • Treatment of diabetes initiated for less than 3 months
  • Enteral nutrition initiated for less than 3 months

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01848392

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Cochin Hospital
Paris, France, 75014
Sponsors and Collaborators
Assistance Publique - Hôpitaux de Paris
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Principal Investigator: Dominique Hubert, MD Université Paris-Centre, AP-HP
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Responsible Party: Assistance Publique - Hôpitaux de Paris Identifier: NCT01848392    
Other Study ID Numbers: 2011 - A00819 - 32
First Posted: May 7, 2013    Key Record Dates
Last Update Posted: August 1, 2017
Last Verified: July 2017
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No
Keywords provided by Assistance Publique - Hôpitaux de Paris:
Cystic fibrosis
Physical activity
Additional relevant MeSH terms:
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Cystic Fibrosis
Pathologic Processes
Pancreatic Diseases
Digestive System Diseases
Lung Diseases
Respiratory Tract Diseases
Genetic Diseases, Inborn
Infant, Newborn, Diseases