Please assess the completion status of the following clinical trial:

Trial Title: A Study of the Safety and Efficacy of Ustekinumab in Patients With Psoriatic Arthritis With and Without Prior Exposure to Anti-TNF Agents

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE3
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria:~* Have had a documented diagnosis of psoriatic arthritis (PsA) at least 6 months~* Have a diagnosis of active PsA at the time of entry into the study with at least 5 tender and 5 swollen joints at baseline~* May have previously received at least 8 weeks of etanercept, adalimumab, golimumab or certolizumab pegol or at least 14 weeks of infliximab or proven inability to tolerate anti-TNF therapy for 8-14 weeks~* If the patient is using methotrexate, they should have started treatment at a dose not to exceed 25 mg/week at least 3 months prior to the beginning of the study and should have no serious toxic side effects attributable to methotrexate~Exclusion Criteria:~* Have other inflammatory diseases, including but not limited to rheumatoid arthritis, ankylosing spondylitis, systemic lupus erythematosus, or Lyme disease~* Have used any therapeutic agent targeted at reducing IL-12 or IL-23, including but not limited to ustekinumab and ABT-874~* Have used infliximab, golimumab or certolizumab pegol within 12 weeks of first study drug injection, or etanercept or adalimumab within 8 weeks of first study drug injection~* Have a medical history of latent or active granulomatous infection, including TB, histoplasmosis, or coccidioidomycosis, prior to screening~* Have any known malignancy or have a history of malignancy (with the exception of basal cell carcinoma, squamous cell carcinoma in situ of the skin, or cervical carcinoma in situ that has been treated with no evidence of recurrence, or squamous cell carcinoma of the skin that has been treated with no evidence of recurrence within 5 years of the beginning of the study

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

Study Arms:
- Placebo (Type: EXPERIMENTAL): Participants will receive subcutaneous (SC) injections of placebo at Weeks 0, 4, 16, and 20. At Week 24 participants will cross over to receive SC injections of ustekinumab 45 mg at Weeks 24 and 28 and every 12 weeks thereafter with the last dose at Week 40. If early escape, SC injections of 45 mg ustekinumab will be given at Weeks 16, 20, and 28 and every 12 weeks thereafter with the last dose at Week 40. For participants entering early escape, a SC placebo injection will be given at Week 24 to maintain the blind.
- Ustekinumab 45 mg (Type: EXPERIMENTAL): Participants will receive SC injections of ustekinumab 45 mg at Weeks 0 and 4 and every 12 weeks thereafter with the last dose at Week 40. If early escape, SC injections of 90 mg ustekinumab will be given at Week 16 and every 12 weeks thereafter with the last dose at Week 40. Participants will receive SC injections of placebo at Weeks 20 and 24 to maintain the blind.
- Ustekinumab 90 mg (Type: EXPERIMENTAL): Participants will receive SC injections of ustekinumab 90 mg at Weeks 0 and 4 and every 12 weeks thereafter with the last dose at Week 40. If early escape, the same dosage schedule will continue. Participants will receive SC injections of placebo at Weeks 20 and 24 to maintain the blind.

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

Answer: outcome: complete