Please assess the completion status of the following clinical trial:

Trial Title: Influence of Chronic Hypoxia on Oxidative Phenotype in Patients With Chronic Obstructive Pulmonary Disease

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: CASE_CONTROL
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* Diagnosis of COPD confirmed according to GOLD score.~* Hypoxemia group: resting arterial paO2 \<55 mmHg.~* Normoxemia group : resting arterial paO2 \> 67 mmHg~Exclusion Criteria:~* Unstable cardiorespiratory status (acute respiratory failure)~* Oxygen treatment started~* Inclusion in a pulmonary rehabilitation program in the last 6 months~* Anticoagulant treatment

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- COPD patients with chronic hypoxemia (Type: None): COPD patients with chronic and severe arterial hypoxemia at rest (paO2\<55mmHg).
- COPD patients with normoxia (Type: None): COPD patients with normoxia at rest (paO2\>67mmHg), matched for age, sex, bronchial obstruction and lean mass.

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