Please assess the completion status of the following clinical trial:

Trial Title: A Clinical Study Assessing Critical Errors, Training/Teaching Time, and Preference Attributes of the ELLIPTA® Dry Powder Inhaler, in Comparison to Combinations of Dry Powder Inhalers Used to Provide Triple Therapy, in Patients With Chronic Obstructive Pulmonary Disease

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 8.0

Eligibility Criteria:
Inclusion Criteria~* Age \>=40 years at Visit 1~* Diagnosis of COPD with a documented history of COPD, in accordance with the definition by the European Respiratory Society.~* Current COPD Therapy: Currently receiving maintenance therapy with a fixed dose combination of a long-acting beta 2-agonist (LABA) and inhaled corticosteroid (ICS). Subject may also be receiving long-acting muscarinic antagonist (LAMA; also known as a long-acting anti-cholinergic). Subjects must be able to continue using their currently prescribed COPD maintenance inhaler therapy throughout the study and as needed short acting beta-adrenergic agonist (SABA) and/or short acting muscarinic antagonist (SAMA) for rescue use.~* Has been on current maintenance ICS/LABA COPD treatment for at least 4 weeks prior to V0 and evaluated as unlikely to change treatment within 4 weeks of Visit 1.~* Current or former (defined as subjects who have quit smoking for at least 3 months prior to V0/V1) cigarette smokers with a \>10 pack-year smoking history (Number of pack years=\[number of cigarettes per day ÷ 20\] x number of years smoked \[e.g., 10 pack-years is equal to 20 cigarettes per day for 10 years, or 10 cigarettes per day for 20 years\]).~* Males or females who are not pregnant or not planning a pregnancy during the study or not lactating~* Capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.~Exclusion Criteria~* Subjects with a current diagnosis of asthma. Subjects with a prior history of asthma are eligible if they have a current diagnosis of COPD.~* Subjects who used any ELLIPTA inhaler (participated in a clinical study of GW685698, GW642444, GSK573719 \[fluticasone furoate, vilanterol, umeclidinium bromide\], or any combination thereof, or placebo in an ELLIPTA inhaler study) within 24 months prior to Visit 0.~* Subjects who used any capsule system inhaler (e.g. Spiriva HANDIHALER, SEEBRI®/ULTIBRO® BREEZHALER®, or participated in a clinical studies of these, including placebo inhalers) within 24 months prior to Visit 0. SEEBRI, ULTIBRO, and BREEZHALER are registered trademarks of Novartis AG.~* Dependent on which sub-study a subject is included on they should not have any recent experience, within 24 months of V 0 of the following inhaler for the sub study included on: Sub Study 1: DISKUS inhaler (e.g., Seretide DISKUS or placebo DISKUS) and Sub Study 2:TURBUHALER (e.g. Symbicort TURBUHALER or placebo TURBUHALER)~* Subjects with a known or suspected alcohol or drug abuse at Visit 1 which in the opinion of the investigator could interfere with the subject's proper completion of the protocol requirement~* A history of hypersensitivity to any components of the study inhaler (e.g., lactose, magnesium stearate). In addition, subjects with a history of severe milk protein allergy that, in the opinion of the study physician, contraindicates participation will also be excluded.~* Subjects who have received an investigational drug and/or medical device within 30 days of entry into this study (Screening/Visit 1), or within five drug half-lives of the investigational drug, whichever is longer~* In the opinion of the investigator, any subject who is unable to read and/or would not be able to complete a questionnaire and understand verbal instructions.

- Gender: ALL
- Minimum Age: 40 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Sub-study 1 : ELLIPTA followed by DISKUS+ HANDIHALER +PQ1 (Type: EXPERIMENTAL): In this sequence, subjects will be randomized to use ELLIPTA inhaler in period 1 and then DISKUS + HANDIHALER in period 2. At the end of Visit 1, subjects will complete version 1 of the PQ (PQ1)
- Sub-study 1 : DISKUS + HANDIHALER followed by ELLIPTA+PQ2 (Type: EXPERIMENTAL): In this sequence, subjects will be randomized to use DISKUS + HANDIHALER in period 1 and then ELLIPTA in period 2. At the end of Visit 1, subjects will complete version 2 of the PQ (PQ2)
- Sub-study 1 : ELLIPTA followed by DISKUS+ HANDIHALER +PQ2 (Type: EXPERIMENTAL): In this sequence, subjects will be randomized to use ELLIPTA inhaler in period 1 and then DISKUS + HANDIHALER in period 2. At the end of Visit 1, subjects will complete PQ2
- Sub-study 1 : DISKUS + HANDIHALER followed by ELLIPTA+PQ1 (Type: EXPERIMENTAL): In this sequence, subjects will be randomized to use DISKUS + HANDIHALER in period 1 and then ELLIPTA in period 2. At the end of Visit 1, subjects will complete PQ1
- Substudy 2: ELLIPTA followed by TURBUHALER + HANDIHALER +PQ3 (Type: EXPERIMENTAL): In this sequence, subjects will be randomized to use ELLIPTA inhaler in period 1 and then TURBUHALER + HANDIHALER in period 2. At the end of Visit 1, subjects will complete version 3 of the PQ (PQ3)
- Substudy 2: TURBUHALER + HANDIHALER followed by ELLIPTA+PQ4 (Type: EXPERIMENTAL): In this sequence, subjects will be randomized to use TURBUHALER + HANDIHALER inhaler in period 1 and then ELLIPTA in period 2. At the end of Visit 1, subjects will complete version 4 of the PQ (PQ4)
- Substudy 2: ELLIPTA followed by TURBUHALER + HANDIHALER +PQ4 (Type: EXPERIMENTAL): In this sequence, subjects will be randomized to use ELLIPTA inhaler in period 1 and then TURBUHALER + HANDIHALER in period 2. At the end of Visit 1, subjects will complete PQ4
- Substudy 2: TURBUHALER + HANDIHALER followed by ELLIPTA+PQ3 (Type: EXPERIMENTAL): In this sequence, subjects will be randomized to use TURBUHALER + HANDIHALER inhaler in period 1 and then ELLIPTA in period 2. At the end of Visit 1, subjects will complete PQ3

Based on this trial design, predict the completion outcome and termination type (if applicable).