Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: A 64-week Treatment, Multi-center, Randomized, Double-blind, Parallel-group, Active Controlled Study to Evaluate the Effect of QVA149 (110/50 μg o.d.) vs NVA237 (50 μg o.d.) and Open-label Tiotropium (18 μg o.d.) on COPD Exacerbations in Patients With Severe to Very Severe Chronic Obstructive Pulmonary Disease (COPD)
Brief Summary: This study is designed to assess the effect of once-daily QVA149 on COPD exacerbations in patients with severe to very severe COPD.


Options:
A: Intervention Type: DRUG; Name: Advair; Assigned to Arm(s): N/A | Intervention Type: DRUG; Name: Flovent; Assigned to Arm(s): N/A
B: Arm Label: Indacaterol 150 µg (Continued Into Stage 2); Type: EXPERIMENTAL; Interventions: Drug: Indacaterol, Drug: Placebo to Indacaterol, Drug: Placebo to Formoterol | Arm Label: Indacaterol 300 µg (Continued Into Stage 2); Type: EXPERIMENTAL; Interventions: Drug: Indacaterol, Drug: Placebo to Indacaterol, Drug: Placebo to Formoterol | Arm Label: Tiotropium 18 µg (Continued Into Stage 2); Type: ACTIVE_COMPARATOR; Interventions: Drug: Tiotropium (18 µg o.d.) | Arm Label: Placebo (Continued Into Stage 2); Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo to Indacaterol, Drug: Placebo to Formoterol | Arm Label: Indacaterol 75 µg (Not Continued into Stage 2); Type: EXPERIMENTAL; Interventions: Drug: Indacaterol, Drug: Placebo to Indacaterol, Drug: Placebo to Formoterol | Arm Label: Indacaterol 600 µg (Not Continued Into Stage 2); Type: EXPERIMENTAL; Interventions: Drug: Indacaterol, Drug: Placebo to Formoterol | Arm Label: Formoterol 12 µg (Not Continued Into Stage 2); Type: ACTIVE_COMPARATOR; Interventions: Drug: Formoterol (12 µg b.i.d.), Drug: Placebo to Indacaterol | Intervention Type: DRUG; Name: Indacaterol; Assigned to Arm(s): Indacaterol 150 µg (Continued Into Stage 2), Indacaterol 300 µg (Continued Into Stage 2), Indacaterol 600 µg (Not Continued Into Stage 2), Indacaterol 75 µg (Not Continued into Stage 2) | Intervention Type: DRUG; Name: Formoterol (12 µg b.i.d.); Assigned to Arm(s): Formoterol 12 µg (Not Continued Into Stage 2) | Intervention Type: DRUG; Name: Tiotropium (18 µg o.d.); Assigned to Arm(s): Tiotropium 18 µg (Continued Into Stage 2) | Intervention Type: DRUG; Name: Placebo to Indacaterol; Assigned to Arm(s): Formoterol 12 µg (Not Continued Into Stage 2), Indacaterol 150 µg (Continued Into Stage 2), Indacaterol 300 µg (Continued Into Stage 2), Indacaterol 75 µg (Not Continued into Stage 2), Placebo (Continued Into Stage 2) | Intervention Type: DRUG; Name: Placebo to Formoterol; Assigned to Arm(s): Indacaterol 150 µg (Continued Into Stage 2), Indacaterol 300 µg (Continued Into Stage 2), Indacaterol 600 µg (Not Continued Into Stage 2), Indacaterol 75 µg (Not Continued into Stage 2), Placebo (Continued Into Stage 2)
C: Arm Label: QVA149; Type: EXPERIMENTAL; Interventions: Drug: QVA149, Drug: Salbutamol/albuterol | Arm Label: NVA237; Type: ACTIVE_COMPARATOR; Interventions: Drug: NVA237, Drug: Salbutamol/albuterol | Arm Label: open-label tiotropium; Type: ACTIVE_COMPARATOR; Interventions: Drug: tiotropium, Drug: Salbutamol/albuterol | Intervention Type: DRUG; Name: QVA149; Assigned to Arm(s): QVA149 | Intervention Type: DRUG; Name: NVA237; Assigned to Arm(s): NVA237 | Intervention Type: DRUG; Name: tiotropium; Assigned to Arm(s): open-label tiotropium | Intervention Type: DRUG; Name: Salbutamol/albuterol; Assigned to Arm(s): NVA237, QVA149, open-label tiotropium
D: Arm Label: Aclidinium 200 μg once-daily; Type: EXPERIMENTAL; Interventions: Drug: Aclidinium bromide | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Intervention Type: DRUG; Name: Aclidinium bromide; Assigned to Arm(s): Aclidinium 200 μg once-daily | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Placebo

Answer: C