Please assess the completion status of the following clinical trial:

Trial Title: Efficacy and Safety of Pegylated Interferon Alfa in Polycythemia Vera

Study Design Characteristics:
- Allocation: NON_RANDOMIZED
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE2
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* polycythemia vera diagnosed according to PVSG criteria, modified by Pearson~* Previously untreated patients or patients treated by phlebotomy only or HU or pipobroman for less than 2 years~* Age 18 to 65 years~* Signed informed consent~Exclusion Criteria:~* Contra indication for interferon~* Severe renal or liver disease~* ECOG performance status \> 2~* Pregnancy~* Uncontrolled endocrine disorders except well regulated hyperthyroidism and diabetes~* Severe concomitant heart failure or psychiatric disorder~* Patients receiving an other investigational treatment

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

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