23. Use or plan to use systemic corticosteroids 4 weeks prior to Visit 1 or during the study; Intra-muscular corticosteroid injections or Intra-articular injection of steroids into the referred knee/hip within 3 months before Visit 1 or during the study; Intra-articular injection of corticosteroids into any other sites than the referred knee/hip within 4 weeks prior to Visit 1 or during the study (corticosteroids in topical use are allowed).