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An Investigation of the Mechanism of Action of Seretide in Chronic Obstructive Pulmonary Disease (IMAS)

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: NCT00974805
Recruitment Status : Completed
First Posted : September 10, 2009
Last Update Posted : December 8, 2014
Information provided by (Responsible Party):
University of Southampton

Brief Summary:
This study is investigating the possible mechanisms of action of an inhaled treatment (Seretide), currently used worldwide in millions of patients with COPD (Chronic Obstructive Pulmonary Disease) and how it improves the symptoms of these patients. Previous research has failed to identify the mechanisms at play other than dilation of the airways. The research community has long thought the mechanism to be immune based or anti inflammatory but despite intensive research this has not yet been identified.

Condition or disease Intervention/treatment Phase
Chronic Obstructive Pulmonary Disease Drug: Seretide 500 Accuhaler Phase 4

Detailed Description:

We aim to recruit equal numbers of healthy smokers, mild, moderate and severe COPD patients (12 patients to be recruited from each group). These patients will never have been prescribed the components present in Seretide (Salmeterol and Flixotide or similar compounds).

The patients will have spirometry at the beginning of the study to confirm the presence of COPD. Healthy smokers will defined as ex or current smokers who match the study population but have normal lung function.

Patients with a history of asthma, bronchiectasis, carcinoma of the bronchus, or other significant respiratory disease will be excluded.

The patients will have a total of four study visits, 2 off treatment and 2 while on treatment, over a 56 day study period. At each study visit induced sputum will be performed and blood extracted. The cells fom both of these samples will be analysed for cells type and activation. Sputum and serum will be stored for cytokine analysis at a later date.

The Sputum will be induced using standardised protocols using nebulised saline solution.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 48 participants
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Basic Science
Official Title: An Investigation Into the Mechanisms of Action of a Combined Long Acting Beta Agonist/Inhaled Corticosteroid (Seretide 500 Accuhaler) on the Bacterial Colonisation, Immunology and Inflammation of Patients With Chronic Obstructive Pulmonary Disease
Study Start Date : February 2010
Actual Primary Completion Date : February 2012
Actual Study Completion Date : February 2012

Resource links provided by the National Library of Medicine

MedlinePlus related topics: COPD Lung Diseases

Arm Intervention/treatment
Experimental: Seretide 500 Accuhaler
Seretide 500 Accuhaler one inhalation BD
Drug: Seretide 500 Accuhaler
Seretide 500 accuhaler one inhalation BD

Primary Outcome Measures :
  1. The primary outcome measures are change in cell type and activation status [ Time Frame: 56 days ]

Secondary Outcome Measures :
  1. Change in sputum and serum cytokines Change in bacterial colonization [ Time Frame: 56 days ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   35 Years to 80 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • >35yrs.
  • >10 Pack Years COPD as defined as an FEV1<70% and an FEV1/FVC ratio of <70%

Exclusion Criteria:

  • Asthma
  • Lung cancer
  • Bronchiectasis

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): NCT00974805

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United Kingdom
Southampton General Hospital
Southampton, Hampshire, United Kingdom, SO16 6YD
Sponsors and Collaborators
University of Southampton

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Responsible Party: University of Southampton Identifier: NCT00974805    
Other Study ID Numbers: SCB-001
First Posted: September 10, 2009    Key Record Dates
Last Update Posted: December 8, 2014
Last Verified: December 2014
Keywords provided by University of Southampton:
Additional relevant MeSH terms:
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Lung Diseases
Lung Diseases, Obstructive
Pulmonary Disease, Chronic Obstructive
Respiratory Tract Diseases
Fluticasone-Salmeterol Drug Combination
Bronchodilator Agents
Autonomic Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anti-Asthmatic Agents
Respiratory System Agents
Hormones, Hormone Substitutes, and Hormone Antagonists