Please assess the completion status of the following clinical trial:

Trial Title: Extracorporeal Photopheresis in Patients With Bronchiolitis Obliterans Syndrome (BOS) After Lung Transplantation

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:~* Single/Double lung transplantation~* at least 6 months after lung transplantation~* bronchiolitis obliterans syndrome, Stadium \> 1 (nach ISHLT 2001, FEV1 \<80% Best), none other reason for worsening lung function (eg acute rejection, infection, extrapulmonary reasons, airway obstruction)~* none gastroesophageal reflux~* medication for \> 3 months with Azithromycin with further decrease of FEV1, MEF 25-75~* bioptic prove that there is no acute rejection~* no improvement under steroid pulse therapy~Exclusion Criteria:~* tumor or hematologic disease~* acute rejection~* respiratory insufficiency (O2\>2l/min, pCO2 \>50 mm Hg)~* weight \< 40 kg~* acute infection~* colonization with multiresistant pathogens

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

Study Arms:
- 1 (Type: NO_INTERVENTION): Observation with standard care (macrolides, exercise, oxygen therapy etc.) alone.
- 2 (Type: ACTIVE_COMPARATOR): 2-day cycles of photopheresis every 3 weeks for 3 months

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