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Does Shared Decision-Making Improve Adherence in Asthma

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: NCT00217945
Recruitment Status : Completed
First Posted : September 22, 2005
Last Update Posted : July 29, 2016
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)

Tracking Information
First Submitted Date  ICMJE September 19, 2005
First Posted Date  ICMJE September 22, 2005
Last Update Posted Date July 29, 2016
Study Start Date  ICMJE September 2001
Actual Primary Completion Date August 2007   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE Not Provided
Original Primary Outcome Measures  ICMJE Not Provided
Change History
Current Secondary Outcome Measures  ICMJE Not Provided
Original Secondary Outcome Measures  ICMJE Not Provided
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
Descriptive Information
Brief Title  ICMJE Does Shared Decision-Making Improve Adherence in Asthma
Official Title  ICMJE Not Provided
Brief Summary To evaluate a model of shared decision-making for asthma treatment, appropriate to the needs of African American, Latino, Chinese, and other Asian and low income Caucasian patients to adherence to asthma controller medications in a two-year randomized clinical trial in 302 minority and low-income adults, 18-70 years of age, with suboptimally controlled, persistent asthma, paralleling a simultaneous evaluation being conducted in 311 Caucasian and Asian/Pacific Island adults, (total n=613), and to examine psychological mechanisms mediating the effects of the intervention on adherence and of adherence on asthma outcomes.
Detailed Description


Asthma is a chronic inflammatory disorder of the airways. Despite major advances in understanding of its pathophysiology and management, asthma outcomes have not shown parallel improvement. Many patients with asthma are poorly controlled and have sub-optimal health status. Asthma care management by a trained non-physician health professional has developed as a means of addressing the problems of patients evidencing poor control and/or poor adherence to controller medications. Shared decision making (SDM) between clinician and patient has also been proposed as a means of getting greater patient involvement in their care, with the idea that this may improve medication adherence and outcomes. However, significant patient involvement also might result in less adequate regimens than would management based on guidelines (MBG). Even so, increased adherence to a less adequate regimen might result in better outcomes than poor adherence to an optimal regimen.


Better Outcomes of Asthma Treatment (BOAT) is a randomized controlled trial (a collaborative study designed to compare the effectiveness of three strategies for managing patients, 18-70 years of age, with suboptimally controlled, persistent asthma. The three treatment strategies are: usual care (UC); management by guidelines (MG); and a third, shared decision making (SDM) arm, that seeks to formally involve the patient in the therapeutic decision-making process. Under the present grant, 302 study participants were recruited from the membership of the Kaiser Permanente - Northern California Region (KPNC), San Francisco, Oakland, and Richmond medical centers. In the collaborating grant (No.HL67092-03) 311 patients were recruited from Kaiser Permanente clinical facilities in Portland, OR, and Honolulu, HI. Patients were randomized equally to the three treatment arms following baseline assessment of asthma control, medication use, lung function, and other behavioral and psychological characteristics. Their health care utilization for asthma and acquisition of asthma medications is being followed for a total of 24 months post-randomization through health system records, and they are being reassessed at 12 mos. Those assigned to the care management conditions received asthma education and objective feedback on their level of asthma control. Those assigned to the MBG condition were prescribed a regimen appropriate to the severity of their asthma in accordance with standard guidelines for asthma management. Those assigned to the SDM condition participated in a process to elicit their goals for their asthma treatment and their priorities regarding their asthma medications, and then engaged in a process of shared decision making with the care manager designed to arrive at a prescribed regimen that satisfied their goals and preferences. Analysis of the data will compare the two care management approaches with usual care and with each other in terms of the primary outcomes.

Study Type  ICMJE Interventional
Study Phase  ICMJE Not Applicable
Study Design  ICMJE Allocation: Randomized
Primary Purpose: Treatment
Condition  ICMJE
  • Lung Diseases
  • Asthma
Intervention  ICMJE Behavioral: Shared-Decision Making
Study Arms  ICMJE Not Provided
Publications *

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Recruitment Information
Recruitment Status  ICMJE Completed
Enrollment  ICMJE Not Provided
Original Enrollment  ICMJE Not Provided
Actual Study Completion Date  ICMJE August 2007
Actual Primary Completion Date August 2007   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE
  • Kaiser Health Care Program member for more than 1 yr.
  • Site: Portland, OR, Honolulu, HI, San Francisco, Oakland, or Richmond, CA.
  • Confirmed diagnosis of persistent asthma with currently prescribed medications; no daily or alternate daily oral corticosteroid
  • Evidence of poorly controlled asthma: score of >=1 on ATAQ asthma control questionnaire1 and either overuse of rescue medication vs. controller medications and/or recent emergency visit or hospitalization for asthma
  • COPD not the primary lung disease diagnosis
  • Regular use of Inhaled Corticosteroid (ICS) and current/ex-smokers: >= 8% increase in FEV1 post-bronchodilator; if no routine ICS use +/- smoking HX: >= 12% increase required; non-smokers using ICS regularly not required to reverse
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 18 Years to 70 Years   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Not Provided
Removed Location Countries  
Administrative Information
NCT Number  ICMJE NCT00217945
Other Study ID Numbers  ICMJE 294
R01HL069358 ( U.S. NIH Grant/Contract )
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party Not Provided
Study Sponsor  ICMJE National Heart, Lung, and Blood Institute (NHLBI)
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Investigator: Sandra Wilson Palo Alto Medical Foundation
PRS Account National Heart, Lung, and Blood Institute (NHLBI)
Verification Date January 2008

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP