Please assess the completion status of the following clinical trial:

Trial Title: A Randomized, Double-Blind, Three-Arm, Phase 3b Study Comparing the Safety and Efficacy of Interferon Gamma-1b With Azathioprine, and Azathioprine Alone in Patients With IPF Receiving Prednisone

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE3
- Number of Arms: None

Eligibility Criteria:
None

- Gender: ALL
- Minimum Age: 20 Years
- Maximum Age: 79 Years
- Healthy Volunteers: f

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