1. Crohn's Disease Study with Pfizer, Inc.:

A Randomized, Double-Blind; Placebo-Controlled, Parallel Group, Multi-Centre Study to Investigate the Safety and Efficacy of Investigational Product for a) Induction Therapy and b)Maintenance Therapy in Subjects with Moderate to Severe Crohn's Disease

An Open-Label Extension Study of Investigational Product as Maintenance Therapy in Patients with Crohn's Disease

2. Crohn's Disease Study with The GlaxoSmithKline Group:

A Randomized, Double-Blind, Placebo-Controlled Study to Investigate the Efficacy and Safety of Investigational Product in the Treatment of Subjects with Moderately to Severely Active Crohn's Disease 

A 52 week, Randomized, Double-Blind, Placebo-Controlled Study to Investigate the Efficacy and Safety of Investigational Product in the Maintenance of Remission in Subjects with Crohn's Disease

An Open-Label Extension Study to Assess the Safety of Investigational Product in Subjects with Crohn's Disease