Study Assessing Utility of a Clinical Questionnaire to Identify Subjects With Features of Both Asthma and Chronic Obstructive Pulmonary Disease (COPD)
Study Assessing Utility of a Clinical Questionnaire to Identify Subjects With Features of Both Asthma and Chronic Obstructive Pulmonary Disease (COPD)
The primary objective of the study is to identify demographic and non-spirometric clinical
 features predictive of the asthma-COPD overlap population. The study aims to explore and
 identify characteristics of the Asthma-COPD Overlap Syndrome (ACOS) patient's clinical
 profile that enable clinical differentiation from subjects with a primary diagnosis of either
 asthma alone (without persistent obstruction) or COPD alone (without reversibility). The
 study is designed as a targeted medical history survey which consists of a 41-item
 questionnaire, which will be administered by a qualified health care practitioner at the time
 a subject's medical history is taken. The questionnaire has been developed to elicit specific
 details of the respiratory history, including the following: bronchodilator use, disease
 progression, variation in symptoms, atopic history, symptom triggers, vagal bias, burden of
 disease, symptom presentation, co morbidities and age of onset. In addition, demographic
 information, standard medical history, co morbidity and spirometric results will also be
 obtained and analyzed in conjunction with the questionnaire results. Approximately 1000
 subjects are required for the study.
Inclusion Criteria:

 -  Subject must be 18 years of age or older.

 -  Subject has been diagnosed as having asthma and/or COPD.

 -  Informed consent is required for independent sites initiating this protocol