Please assess the completion status of the following clinical trial:

Trial Title: Study Evaluating Etanercept and Sulphasalazine in Ankylosing Spondylitis

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Clinical diagnosis of ankylosing spondylitis~* Active ankylosing spondylitis~Exclusion Criteria:~* Complete ankylosis of spine~* Previous treatment with etanercept

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

Study Arms:
- A (Type: EXPERIMENTAL): None
- B (Type: ACTIVE_COMPARATOR): None

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