title: Body mass index and response to asthma therapy: fluticasone propionate/salmeterol versus montelukast.
abstract: We studied the relationship between body mass index (BMI) on responses to asthma therapy using a retrospective analysis of four previously reported clinical trials. Fluticasone propionate (FP)/salmeterol via Diskus 100/50 microg twice daily and montelukast (MON) 10 mg daily were compared. BMI was classified as underweight (less than 20 kg/m(2)), normal (20-24.9 kg/m(2)), overweight (25-29.9 kg/m(2)), obese-1 (30-34.9 kg/m(2)), obese-2 (35-39.9 kg/m(2)), or obese-3 (at least 40 kg/m(2)). Outcomes assessed included forced expiratory volume in one second (FEV(1)), asthma symptom score, and albuterol use. FP/salmeterol produced greater improvements compared to MON in each of the asthma outcomes studied over the entire BMI range at the week-12 endpoint, with statistically significant differences noted among normal, overweight, obese-1, and obese-3 subjects. The within-treatment responses to FP/salmeterol across BMI ranges at the week-12 endpoint was statistically significantly greater in normal compared to obese-3 for FEV(1) and albuterol use, and in overweight compared to the obese-3 for each outcome studied. The within-treatment comparisons of MON across BMI ranges were significant for albuterol use in normal and underweight compared to obese-3 at the week-12 endpoint. Compared to subjects with normal BMI, the onset to peak FEV(1) may require longer treatment exposure in the very obese. Treatment responses to FP/salmeterol were consistently greater compared to MON and persisted at higher BMI.
authors.affiliation: Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.
authors.forename: Carlos A
authors.initials: CA
authors.lastname: Camargo
authors.forename: Louis-Philippe
authors.initials: LP
authors.lastname: Boulet
authors.forename: E Rand
authors.initials: ER
authors.lastname: Sutherland
authors.forename: William W
authors.initials: WW
authors.lastname: Busse
authors.forename: Steven W
authors.initials: SW
authors.lastname: Yancey
authors.forename: Amanda H
authors.initials: AH
authors.lastname: Emmett
authors.forename: Hector G
authors.initials: HG
authors.lastname: Ortega
authors.forename: Thomas J
authors.initials: TJ
authors.lastname: Ferro
mesh_terms: D000085:Acetates / Q000494:pharmacology / Q000627:therapeutic use*; D000328:Adult; D000420:Albuterol / Q000031:analogs & derivatives* / Q000494:pharmacology / Q000627:therapeutic use; D000730:Androstadienes / Q000494:pharmacology / Q000627:therapeutic use*; D018927:Anti-Asthmatic Agents / Q000494:pharmacology / Q000627:therapeutic use; D001249:Asthma / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy* / Q000503:physiopathology; D015992:Body Mass Index; D003521:Cyclopropanes; D004311:Double-Blind Method; D004338:Drug Combinations; D005260:Female; D000068297:Fluticasone-Salmeterol Drug Combination; D005541:Forced Expiratory Volume / Q000187:drug effects / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D015337:Multicenter Studies as Topic; D009765:Obesity / Q000150:complications / Q000473:pathology; D050177:Overweight / Q000150:complications / Q000473:pathology; D011804:Quinolines / Q000494:pharmacology / Q000627:therapeutic use*; D016032:Randomized Controlled Trials as Topic; D013440:Sulfides; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D000085:Acetates; D000730:Androstadienes; D018927:Anti-Asthmatic Agents; D003521:Cyclopropanes; D004338:Drug Combinations; D000068297:Fluticasone-Salmeterol Drug Combination; D011804:Quinolines; D013440:Sulfides; C093875:montelukast; D000420:Albuterol