Arctic Bioscience announced that the CTA has been approved in the UK. On January 12, 2023, the Health Research Authority (HRA) gave its approval for clinical trial start in the UK "A Phase IIb, multicenter, randomized, double-blind, placebo-controlled, dose-finding, efficacy and safety study of HRO350 in patients with mild-to-moderate psoriasis" (the 'HeROPA' study). The CTA was simultaneously also approved by The United Kingdom (UK) Medicines & Healthcare products Regulatory Agency (MHRA), the UK Research Ethics Committee (REC).

This is a major regulatory milestone in the drug development program for HRO350. Arctic Bioscience is currently in the process of activating the clinical trial sites in the UK, and first patient inclusion is expected later this month.