Medication Adherence Research in COPD Patients

Study Overview
=================
Brief Summary
-----------------
Chronic Obstructive Pulmonary Disease (COPD) is the third leading cause of death, affects over 24 million people in the US and is the leading cause of disability with projected healthcare costs at almost $50 billion. The goal of this study is to identify novel and potentially powerful targets for behavioral interventions in COPD which has been understudied despite its tremendous detrimental impact on overall public health.

Detailed Description
-----------------
The Centers for Medicare and Medicaid Services (CMS) has specifically targeted COPD hospital readmissions as a meaningful quality outcome that could result in financial penalties highlighting the significant impact of COPD on our overall health system. The growing availability of efficacious medication, stands in stark contrast to the poor health outcomes experienced by COPD patients. One possible explanation for this gap is low rates of medication adherence; some studies report that only 25% of COPD patients take at least 80% of their prescribed medications. Pharmacy refill records indicate that adherence to COPD medications is significantly lower than adherence rates seen in other chronic illnesses including hypertension, diabetes, and congestive heart failure. Significant negative long term health outcomes may be magnified by non-adherence to prescribed medications in COPD. This study proposes to systematically identify modifiable determinants of adherence in COPD based on the Theory of Self-Regulation in 360 patients with COPD. A novel and significant innovation of this study is the use of mobile health (mhealth) technology to objectively assess medication use. No previous study of self-regulation theory has utilized objective measure of adherence. A further innovation of the study is the use of ecological momentary assessment (EMA) of patient reported symptoms and beliefs to evaluate longitudinal associations between observation (patient symptoms) judgements (medication use to relieve symptoms), and reactions (self-efficacy, outcome expectancy, and medication beliefs) in real time. This study will be the first to objectively evaluate the application of the Self-Regulation Theory in COPD and to examine the long-term longitudinal impact of medication adherence on disease progression in a diverse sample.

Official Title
-----------------
Longitudinal Determinants of Medication Adherence in COPD

Conditions
-----------------
COPD, Medication Adherence

Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: 40 years of age or older Physician diagnosis of COPD Prescribed a long-term controller medication for COPD Moderate COPD on the basis of meeting one of the following criteria: Gold Stage II-IV disease with forced expiratory volume in 1 second (FEV1)/forced vital capacity (FVC) ≤70% and FEV1 (% predicted) <80% or One or more hospital admissions, two or more emergency department (ED) visits, or prescription of oral steroids for COPD exacerbation in the past 12 months or ever having used home oxygen Cognitive ability to provide informed consent Exclusion Criteria: - Non-English speaking

Ages Eligible for Study
-----------------
Minimum Age: 40 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------
What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Medication Adherence | Measured by electronic medication monitoring | 5 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| % Predicted Forced Expiratory Volume (FEV) | Measured by spirometry | 5 years |