An Open-label, Safety Extension Study (OLSES) evaluating the longer-term safety and
durability of response of subjects who completed 48 weeks of evaluations in the confirmatory
safety and efficacy studies, CHS 0214-02 or CHS-0214-04, evaluating CHS-0214 in patients with
rheumatoid arthritis (RA) and plaque psoriasis (PsO), respectively.