Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: A 12-week Treatment, Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group Study to Assess the Efficacy, Safety, and Tolerability of Indacaterol (150 and 300 µg Once Daily [od]) in Patients With Chronic Obstructive Pulmonary Disease (COPD)
Brief Summary: This study was designed to provide pivotal confirmation of efficacy and safety data for 2 doses of indacaterol (150 and 300 µg once daily \[od\]) in patients with moderate to severe chronic obstructive pulmonary disease (COPD). Data from this study will be used for the registration of indacaterol in Japan.


Options:
A: Arm Label: Indacaterol 300 μg plus placebo to formoterol; Type: EXPERIMENTAL; Interventions: Drug: Indacaterol, Drug: Placebo to formoterol | Arm Label: Indacaterol 600 μg plus placebo to formoterol; Type: EXPERIMENTAL; Interventions: Drug: Indacaterol, Drug: Placebo to formoterol | Arm Label: Formoterol 12 μg plus placebo to indacaterol; Type: ACTIVE_COMPARATOR; Interventions: Drug: Formoterol, Drug: Placebo to indacaterol | Arm Label: Placebo to indacaterol plus placebo to formoterol; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo to indacaterol, Drug: Placebo to formoterol | Intervention Type: DRUG; Name: Indacaterol; Assigned to Arm(s): Indacaterol 300 μg plus placebo to formoterol, Indacaterol 600 μg plus placebo to formoterol | Intervention Type: DRUG; Name: Formoterol; Assigned to Arm(s): Formoterol 12 μg plus placebo to indacaterol | Intervention Type: DRUG; Name: Placebo to indacaterol; Assigned to Arm(s): Formoterol 12 μg plus placebo to indacaterol, Placebo to indacaterol plus placebo to formoterol | Intervention Type: DRUG; Name: Placebo to formoterol; Assigned to Arm(s): Indacaterol 300 μg plus placebo to formoterol, Indacaterol 600 μg plus placebo to formoterol, Placebo to indacaterol plus placebo to formoterol
B: Arm Label: Indacaterol 150 µg; Type: EXPERIMENTAL; Interventions: Drug: Indacaterol 150 μg capsules | Arm Label: Indacaterol 300 µg; Type: EXPERIMENTAL; Interventions: Drug: Indacaterol 300 μg capsules | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo capsules | Intervention Type: DRUG; Name: Indacaterol 150 μg capsules; Assigned to Arm(s): Indacaterol 150 µg | Intervention Type: DRUG; Name: Indacaterol 300 μg capsules; Assigned to Arm(s): Indacaterol 300 µg | Intervention Type: DRUG; Name: Placebo capsules; Assigned to Arm(s): Placebo
C: Arm Label: Indacaterol 75 μg; Type: EXPERIMENTAL; Interventions: Drug: Indacaterol 75 μg | Arm Label: Placebo to indacaterol; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo to indacaterol | Intervention Type: DRUG; Name: Indacaterol 75 μg; Assigned to Arm(s): Indacaterol 75 μg | Intervention Type: DRUG; Name: Placebo to indacaterol; Assigned to Arm(s): Placebo to indacaterol
D: Arm Label: Indacaterol 150 μg; Type: EXPERIMENTAL; Interventions: Drug: Indacaterol 150 μg, Drug: Placebo to Salmeterol | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo to Indacaterol, Drug: Placebo to Salmeterol | Arm Label: Salmeterol 50 μg; Type: ACTIVE_COMPARATOR; Interventions: Drug: Salmeterol 50 μg, Drug: Placebo to Indacaterol | Intervention Type: DRUG; Name: Indacaterol 150 μg; Assigned to Arm(s): Indacaterol 150 μg | Intervention Type: DRUG; Name: Salmeterol 50 μg; Assigned to Arm(s): Salmeterol 50 μg | Intervention Type: DRUG; Name: Placebo to Indacaterol; Assigned to Arm(s): Placebo, Salmeterol 50 μg | Intervention Type: DRUG; Name: Placebo to Salmeterol; Assigned to Arm(s): Indacaterol 150 μg, Placebo

Answer: B