Please assess the completion status of the following clinical trial:

Trial Title: Immunization To Prevent Acute COPD Exacerbations

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

Eligibility Criteria:
Inclusion criteria:~1. Patient ≥18 years diagnosed with COPD (any stage, the subgroups for the analysis would be based on COPD severity grade)~2. Ability to understand and complete the required QoL questionnaires~3. At least 2 years of clinical history available that includes records of previous moderate/severe exacerbations, influenza and pneumococcal vaccination history comorbidities and previous treatments.~4. Spirometry data (maximum 6 months old, or if not available at enrollment, to be performed as per normal clinical practice at visit 1 +/- one month)~Exclusion criteria:~1. Impossibility to perform prospective follow up~2. Present any immunocompromising condition~3. Present any other respiratory diseases as co-morbidity (subjects with overlap syndromes COPD-asthma will be excluded. Mixed phenotype defined as: symptoms of increased variability of airflow and incompletely reversible airflow obstruction)

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

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