Experimental: Secukinumab 300mg

All eligible participants will receive secukinumab 300 mg s.c. (2 x 150mg/1mL PFS secukinumab) from baseline and every 4 weeks up to 2 years. The study medication may be modified/adjusted after the initial doses of 300mg s.c. (decreased to 150mg s.c. q4w or increased again from 150mg s.c. q4w to 300mg s.c. q4w) if deemed appropriate by the investigator. Dose modification/adjustment may only occur from Week 24 visit onwards. The modification/adjustment of the study medication will be determined at a site visit.