title: The correlation between asthma control and health status: the GOAL study.
abstract: The present study examined the association between guideline-derived asthma control and health-related quality of life, assessed using the Asthma Quality of Life Questionnaire (AQLQ), in patients with uncontrolled asthma whose treatment was directed towards achieving the highest possible level of control. The present randomised, double-blind, parallel-group study compared the efficacy of fluticasone propionate (FP) and salmeterol/fluticasone propionate combination (SFC) in achieving two composite, guideline-derived measures of control: total control (TC) and well-controlled (WC) asthma. Not achieving these levels was classed as not well-controlled (NWC). Doses were augmented until patients achieved TC or reached the maximum dose. This dose was maintained for the remainder of the study. AQLQ was assessed at baseline and at each clinic visit. AQLQ scores improved throughout the study, reaching near-maximal levels in patients achieving TC and WC, and 52-week mean scores in the three control groups were statistically significantly different. Clinically meaningful improvements (mean change from baseline) were: TC group (SFC 1.9, FP 1.8), WC (SFC 1.5, FP 1.5) and NWC (SFC 1.0, FP 0.9). In conclusion, the treatment aimed at controlling asthma improves the health-related quality of life to levels approaching normal. The difference in Asthma Quality of Life Questionnaire scores between total control and well-controlled confirms that patients distinguish even between these high levels of control.
authors.affiliation: University of Cape Town, Cape Town, South Africa. ebateman@uctgsh1.uct.ac.za
authors.forename: E D
authors.initials: ED
authors.lastname: Bateman
authors.forename: J
authors.initials: J
authors.lastname: Bousquet
authors.forename: M L
authors.initials: ML
authors.lastname: Keech
authors.forename: W W
authors.initials: WW
authors.lastname: Busse
authors.forename: T J H
authors.initials: TJ
authors.lastname: Clark
authors.forename: S E
authors.initials: SE
authors.lastname: Pedersen
mesh_terms: D000280:Administration, Inhalation; D000293:Adolescent; D000328:Adult; D000420:Albuterol / Q000008:administration & dosage / Q000031:analogs & derivatives*; D000730:Androstadienes / Q000008:administration & dosage*; D001249:Asthma / Q000188:drug therapy*; D001993:Bronchodilator Agents; D004311:Double-Blind Method; D004338:Drug Combinations; D005260:Female; D000068298:Fluticasone; D000068297:Fluticasone-Salmeterol Drug Combination; D006304:Health Status; D006801:Humans; D008297:Male; D036501:Metered Dose Inhalers; D008875:Middle Aged; D011788:Quality of Life; D016896:Treatment Outcome
chemical_list: D000730:Androstadienes; D001993:Bronchodilator Agents; D004338:Drug Combinations; D000068297:Fluticasone-Salmeterol Drug Combination; D000068298:Fluticasone; D000420:Albuterol