The Leukotriene Modifier Or Corticosteroid or Corticosteroid-Salmeterol Trial (The LOCCS Trial)

This study has been completed.
Information provided by:
American Lung Association Asthma Clinical Research Centers Identifier:
First received: September 8, 2005
Last updated: August 26, 2011
Last verified: August 2011
This research study will compare the treatment effects of three different asthma medications in asthma subjects whose asthma is well controlled when they take fluticasone, an inhaled corticosteroid. The treatments are fluticasone, montelukast (an anti?leukotriene drug), and a combination therapy of fluticasone and salmeterol (a long-acting beta-agonist). Fluticasone, montelukast, and the combination therapy of fluticasone and salmeterol (Advair Diskus®) are all approved for the treatment of asthma. We are looking at whether the three treatments are equally effective for reducing the number and the severity of asthma attacks in subjects with mild to moderately severe asthma.

Condition Intervention Phase
Drug: fluticasone
Drug: montelukast
Drug: fluticasone/salmeterol combination
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double-Blind
Primary Purpose: Treatment
Official Title: The Leukotriene Modifier Or Corticosteroid or Corticosteroid-Salmeterol Trial (The LOCCS Trial)

Resource links provided by NLM:

Further study details as provided by American Lung Association Asthma Clinical Research Centers:

Primary Outcome Measures:
  • Asthma treatment failure

Secondary Outcome Measures:
  • Pulmonary function
  • Symptoms
  • Medication use
  • Patient measures (questionnaires)
  • Markers of inflammation

Estimated Enrollment: 495
Study Start Date: June 2003
Estimated Study Completion Date: July 2005
Detailed Description:
This trial will attempt to investigate whether asthmatic patients that are well controlled with low-dose twice daily inhaled corticosteroid (ICS) therapy can safely be switched to other modes of controller therapy without loss of asthma control. Patients demonstrating good control on twice-daily low-dose ICS will be randomized to one of three treatment groups: once-daily low-dose ICS (fluticasone), leukotriene receptor antagonist (montelukast), or once-daily combination therapy (fluticasone-salmeterol).

Ages Eligible for Study:   6 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • physician-diagnosed asthma
  • age 6 or older
  • pre-bronchodilator FEV1 of at least 60% of predicted
  • beta-agonist reversibility OR airways hyperreactivity by methacholine challenge
  • Juniper Asthma Control Score of 1.5 or greater if not on daily controller
  • good current health

Exclusion Criteria:

  • current or past smoking (greater than 20 pack-years)
  • chronic or current oral steroid therapy
  • pregnancy, lack of effective contraception (when appropriate), lactation
  Contacts and Locations
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Please refer to this study by its identifier: NCT00156819

United States, Alabama
University of Alabama at Birmingham
Birmingham, Alabama, United States, 35233
United States, Colorado
National Jewish Hospital
Denver, Colorado, United States, 80206
United States, Florida
Nemour's Childrens Center
Jacksonville, Florida, United States, 32207
University of Miami (and University of South Florida in Tampa)
Miami, Florida, United States, 33136
United States, Georgia
Emory University
Atlanta, Georgia, United States, 30322
United States, Illinois
Illinois Consortium (Northwestern, Univ. of Chicago, Univ. of Illinois)
Chicago, Illinois, United States, 60611
United States, Indiana
Indiana University
Indianapolis, Indiana, United States, 46202
United States, Louisiana
Louisiana State University
New Orleans, Louisiana, United States, 70112
United States, Minnesota
University of Minnesota
Minneapolis, Minnesota, United States, 55455
United States, Missouri
University of Missouri at Kansas City
Kansas City, Missouri, United States, 64108
Washington University
St. Louis, Missouri, United States, 63110
United States, New York
Long Island Jewish Hospital (and North Shore Hospital)
New Hyde Park, New York, United States, 11040
New York Consortium (New York Univ. and Columbia Univ.)
New York, New York, United States, 10016
New York Medical College
Valhalla, New York, United States, 10595
United States, North Carolina
Duke University School of Medicine
Durham, North Carolina, United States, 27710
United States, Ohio
Ohio State University
Columbus, Ohio, United States, 43210
United States, Pennsylvania
Thomas Jefferson Hospital
Philadelphia, Pennsylvania, United States, 19107
United States, Texas
Baylor College of Medicine
Houston, Texas, United States, 77030
United States, Vermont
Northern New England Consortium (Univ. of Vermont and other locations)
Burlington, Vermont, United States, 05405
Sponsors and Collaborators
American Lung Association Asthma Clinical Research Centers
Study Chair: Nicholas Anthonisen, MD University of Winnipeg
  More Information

Additional Information:
No publications provided by American Lung Association Asthma Clinical Research Centers

Additional publications automatically indexed to this study by Identifier (NCT Number): Identifier: NCT00156819     History of Changes
Other Study ID Numbers: ALAACRC-03
Study First Received: September 8, 2005
Last Updated: August 26, 2011
Health Authority: United States: Food and Drug Administration

Keywords provided by American Lung Association Asthma Clinical Research Centers:
Asthma Control

Additional relevant MeSH terms:
Fluticasone, salmeterol drug combination
Adrenergic Agents
Adrenergic Agonists
Adrenergic beta-2 Receptor Agonists
Adrenergic beta-Agonists
Anti-Allergic Agents
Anti-Asthmatic Agents
Anti-Inflammatory Agents
Autonomic Agents
Bronchodilator Agents
Dermatologic Agents
Hormones, Hormone Substitutes, and Hormone Antagonists
Molecular Mechanisms of Pharmacological Action
Neurotransmitter Agents
Peripheral Nervous System Agents
Pharmacologic Actions
Physiological Effects of Drugs
Reproductive Control Agents
Respiratory System Agents
Therapeutic Uses
Tocolytic Agents processed this record on November 25, 2015