Study Information
| Title: | A Study of the Safety and Efficacy of Ustekinumab in Patients With Psoriatic Arthritis With and Without Prior Exposure to Anti-TNF Agents  |
| Status: | Recruiting participants |
| Conditions: | Arthritis, Psoriatic |
| Interventions: | Drug: placebo; Drug: ustekinumab; Drug: ustekinumab; Drug: placebo; Drug: placebo; Drug: ustekinumab; Drug: ustekinumab; Drug: ustekinumab |
| Health Topics: | Psoriasis |