A Study of the Safety and Efficacy of Golimumab in Patients With Active Psoriatic Arthritis

50 mg sc injs every 4 wks from wk 0 thru 5 yrs (unless early escape at wk 16); golimumab - if early escape, 100mg sc injection every 4 wks beginning wk 16 up to 5 yrs; golimumab - Dr's discretion after unblinding, dose adjust from 50 to 100mg

SC injections ever 4 wks thru Wk 20 (unless early escape at wk 16); golimumab - if early escape, 50mg sc injection from wk 16 up to 5 yrs; golimumab -50mg sc injection beginning Wk 24 up to 5 yrs (unless early escape); golimumab - Dr's discretion after unblinding, dose adjust from 50 to 100 mg

100 mg sc injections every 4 wks from wk 0 up to 5 yrs