Please assess the completion status of the following clinical trial:

Trial Title: Study of CP-690,550 Versus Placebo In Rheumatoid Arthritis Patients On Background Methotrexate With Inadequate Response To Tumor Necrosis Factor (TNF) Inhibitors

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE3
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~* Adults with moderate to severe rheumatoid arthritis on a stable dose of methotrexate who have inadequate response to Tumor Necrosis Factor (TNF) inhibitors.~Exclusion Criteria:~* Pregnancy, severe acute or chronic medical conditions, including serious infections or clinically significant laboratory abnormalities.

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

Study Arms:
- Sequence 1 (Type: EXPERIMENTAL): None
- Sequence 2 (Type: EXPERIMENTAL): None
- Sequence 3 (Type: PLACEBO_COMPARATOR): None
- Sequence 4 (Type: PLACEBO_COMPARATOR): None

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