To investigate the safety and tolerability of escalating single doses of CAM-3001 in patients with RA; To investigate the pharmacokinetics of single doses of CAM-3001 in RA patients; To investigate the pharmacodynamics of single doses of CAM-3001 in RA patients; To investigate the preliminary clinical effects of CAM-3001 on the signs and symptoms of RA.
Investigate safety and tolerability of the escalating dose of CAM-3001 in patients.