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).

Answer: outcome: complete