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  • Title: ACCORD COPD II: a randomized clinical trial to evaluate the 12-week efficacy and safety of twice-daily aclidinium bromide in chronic obstructive pulmonary disease patients.
    Author: Rennard SI, Scanlon PD, Ferguson GT, Rekeda L, Maurer BT, Garcia Gil E, Caracta CF.
    Journal: Clin Drug Investig; 2013 Dec; 33(12):893-904. PubMed ID: 24085591.
    Abstract:
    BACKGROUND AND OBJECTIVES: Aclidinium bromide is a long-acting muscarinic antagonist approved for the long-term maintenance treatment of bronchospasm associated with chronic obstructive pulmonary disease (COPD). This 12-week phase III study evaluated efficacy and tolerability of aclidinium 200 or 400 μg in patients with moderate-to-severe COPD. METHODS: In this double-blind study, 544 patients with COPD were randomized to placebo or twice-daily aclidinium 200 or 400 μg administered by Genuair(®)/Pressair(®). Lung function, health status [measured by the St. George's Respiratory Questionnaire (SGRQ)], dyspnea [measured using the Transition Dyspnea Index (TDI)], and safety were assessed throughout the study. RESULTS: Mean changes from baseline in morning trough forced expiratory volume in 1 s (FEV(1)) at week 12 (primary endpoint) were significantly higher for aclidinium than for placebo (200 μg, 51 mL; 400 μg, 72 mL; both p < 0.05). Aclidinium also significantly improved other lung function outcomes. At week 12, improvements from baseline were observed with aclidinium in SGRQ total score (200 μg, -6.0; 400 μg, -5.4) and TDI focal score (200 μg, 1.0; 400 μg, 1.3). Furthermore, clinically important improvements in SGRQ total and TDI focal scores were achieved by 45 and 51 % of patients, respectively, who received aclidinium 400 μg, with a significant difference versus placebo for TDI (p < 0.05). Anticholinergic-related adverse events (e.g., dry mouth) were infrequent, occurring <2 % for any event in any treatment group. Both aclidinium doses were well tolerated. CONCLUSION: This study demonstrates efficacy and safety of aclidinium in COPD patients. Unexpected baseline imbalances between treatment groups may have impacted the aclidinium treatment benefit in this study.
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