Dovepress Long-acting β-adrenoceptor agonists and COPD 34(Suppl 53):P2031. 2011;49:153–161. 55. Khindri S, Sabo R, Harris S, et al. Cardiac safety of indacaterol – no 57. Worth H, Kleerup E, Iqbal A, et al. Safety and tolerability of indacaterol clinical effect on QT interval in healthy subjects. Eur Respir J. 2009; once-daily in COPD patients versus placebo and tiotropium: a 26-week 56. Pascoe S, Reynolds C, Pleskow W, et al. Safety, tolerability and pharma- 58. Worth H, Chung KF, Felser JM, et al. Cardio- and cerebrovascular cokinetics of single escalating doses of indacaterol, a once-daily beta2- agonist bronchodilator, in subjects with COPD. Int J Clin Pharmacol. safety of indacaterol vs formoterol, salmeterol, tiotropium and placebo in COPD. Respir Med. 2011;105:571–579. study Eur Respir J. 2009;34(Suppl 53):P2030. International Journal of COPD Publish your work in this journal The International Journal of COPD is an international, peer-reviewed journal of therapeutics and pharmacology focusing on concise rapid reporting of clinical studies and reviews in COPD. Special focus is given to the pathophysiological processes underlying the disease, intervention programs, patient focused education, and self management protocols. Submit your manuscript here: http://www.dovepress.com/international-journal-of-copd-journal International Journal of COPD 2011:6 submit your manuscript | www.dovepress.com Dovepress 243 Dovepress This journal is indexed on PubMed Central, MedLine and CAS. The manuscript management system is completely online and includes a very quick and fair peer-review system, which is all easy to use. Visit http://www.dovepress.com/testimonials.php to read real quotes from published authors.