An Exploratory Study of Physician Decision-Making When Treating Uncontrolled COPD

Kristin Kahle-Wrobleski,1 Bonnie KH Bui,2 Jennifer Friderici,2 Kristin J Moore,2 Maureen Carlyle,2 Noah S Webb,2 Carolyn K Martin,2 Wilson D Pace,3,4 John M Westfall3,4 1US Value Evidence and Outcomes, GSK, Philadelphia, PA, USA; 2Health Economics and Outcomes Research, Optum Life Sciences, Eden Prairie, MN, USA; 3DARTNet Institute, Research Department, Aurora, CO, USA; 4Family Medicine, University of Colorado Medical School, Denver, CO, USACorrespondence: Kristin Kahle-Wrobleski, US Value Evidence and Outcomes, GSK, 2929 Walnut Street, Philadelphia, PA, 19104, USA, Tel +1-463-224-4001, Email kristin.k.wrobleski@gsk.comPurpose: Current guidelines recommend triple therapy maintenance inhalers for patients with recurrent exacerbations of chronic obstructive pulmonary disease (COPD); however, these maintenance therapies are underutilized. This study aimed to understand how physicians make COPD treatment decisions, and how combination maintenance therapies are utilized in a real-world setting.Patients and Methods: This exploratory, hypothesis-generating, non-interventional study used a cross-sectional online survey that was administered to a sample of practicing physicians in the United States. The survey included five fictitious vignettes detailing common symptoms experienced by patients with COPD. Survey questions included factors physicians consider in their decisions, and perceived barriers to prescribing treatments. Repeated measures multivariable analyses were conducted to evaluate how likely physicians were to switch to triple therapy versus no change to patient’s current maintenance therapy or change to another maintenance therapy.Results: In total, 200 physicians completed the survey. Cost of treatment and patient access to treatment were reported as the most common barriers physicians consider in their prescribing decisions. Physicians were more likely to switch a patient’s maintenance inhaler to triple therapy versus no change to maintenance inhaler if they considered the patient’s history of new symptoms, insurance status, and clinical guidelines in their decision. Physicians with more experience treating patients with COPD, and those who treat more patients with COPD per week, were more likely to switch to triple therapy versus no change to maintenance inhaler.Conclusion: This study demonstrates the complexity of factors that can influence physicians’ decisions when prescribing treatments for patients with COPD, including considerations of treatment cost, patient access and adherence, patient comorbidities, efficacy of current treatment, clinical guidelines, and provider’s level of experience treating COPD. Further research may help elucidate the relative importance of the factors influencing physicians’ decisions and inform what types of decision-support tools would be most beneficial.Plain Language Summary: Chronic obstructive pulmonary disease (COPD) symptoms can be effectively managed with maintenance therapies, which are treatments that are taken routinely to help improve symptoms. A combination of three different therapies (triple therapy maintenance) has been shown to be more effective than a combination of two different therapies (dual therapy maintenance) in patients with moderate-to-severe COPD. However, maintenance therapies, including triple therapy, are underutilized. This study aimed to explore how physicians make their treatment decisions for patients with COPD, and how combination maintenance therapies are utilized. To do so, we administered a survey to a sample of practicing physicians in the United States. The survey included five clinically based, fictitious profiles, or vignettes, of patients with COPD, with common symptoms and patient characteristics being described. Physicians were then asked to answer questions about what treatment they would prescribe for each patient, and any factors they considered when deciding on a treatment for a patient. We found that cost of treatment and patient access to treatment were the most common barriers that physicians considered when choosing a treatment. Physicians were also more likely to switch a patient’s maintenance inhaler to a triple therapy maintenance inhaler if they considered the patient’s history of new symptoms, patient’s insurance status, and clinical guidelines when making their decisions. Our study shows that there are many complex factors that influence physicians’ decisions when deciding on a treatment for patients with COPD.Keywords: maintenance therapy, patient vignette, pharmacotherapy, physician survey, real world, triple therapy