Please assess the completion status of the following clinical trial:

Trial Title: Benefits of Lightweight Ambulatory Oxygen Systems for Individuals With Chronic Obstructive Pulmonary Disease

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Currently in a stable phase of COPD, defined as having had no disease exacerbation within the 4 weeks prior to study entry~* Ambulatory~* Forced expiratory volume in one second (FEV1) less than or equal to 60% of predicted value at screening~* Ratio of FEV1 and forced vital capacity (FEV1/FVC) less than or equal to 65% of predicted value at screening~* Currently receiving long-term oxygen therapy (LTOT)~* Partial pressure of oxygen in arterial blood (PaO2) less than 60 torr~Exclusion Criteria:~* Clinically significant cardiovascular disease (e.g., uncontrolled hypertension, left-sided heart failure, peripheral vascular disease, exertional angina, complex arrhythmias, severe dependent edema, ischemic changes on stress electrocardiogram that would be contraindications for unrestricted ambulation or the 6-minute walk test)~* Orthopedic impairments that would limit ambulation~* Participation in the active phase of pulmonary rehabilitation within the 3 months prior to study entry~* Neurologic impairments (e.g., Parkinson's disease or a stroke) or mental states (e.g., senile dementia) that would limit independent ambulation~* Neoplastic disease that is anticipated to influence survival~* Currently receiving lightweight ambulatory oxygen therapy~* Inability to maintain an oxygen saturation of 92% at rest with 4 liter/minute of continuous oxygen flow and during exercise with an oxygen conserver setting of 6 utilizing a nasal cannula~* Currently a smoker~* Sleep apnea if it is characterized primarily as central sleep apnea syndrome (whether being treated or not) OR if it is known or suspected obstructive sleep apnea that has existed for at least 2 months and has not received stable treatment (stable treatment modes include positive airway pressure therapies or dental orthotic/mandibular positioning devices); individuals with diagnosed obstructive sleep apnea must have a body mass index less than or equal to 30 kg/m2 to be eligible for this study

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

Study Arms:
- E-Cylinder (Type: ACTIVE_COMPARATOR): 22-lb E-cylinder towed on a cart
- Lightweight Cylinder (Type: ACTIVE_COMPARATOR): 3.6-lb lightweight cylinder that can be carried

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