An experimental RNA treatment reduced liver scarring in half of patients with an inherited disease called alpha-1 antitrypsin deficiency, or AATD, according to results from a mid-stage clinical trial reported Monday by its maker Arrowhead Pharmaceuticals.
The improvement in liver fibrosis demonstrated by the treatment, called fazirsiran, was generally in line with expectations based on previous data. However, 38% of patients treated with a placebo also showed the same liver-fibrosis improvement — a response that was higher than expected, making it more difficult to discern fazirsiran’s benefit.
Fazirsiran is being developed by Arrowhead in partnership with the Japanese drugmaker Takeda Pharmaceuticals.
This article is exclusive to STAT+ subscribers
Unlock this article — plus daily coverage and analysis of the biotech sector — by subscribing to STAT+.
Already have an account? Log in
Already have an account? Log in
To submit a correction request, please visit our Contact Us page.
STAT encourages you to share your voice. We welcome your commentary, criticism, and expertise on our subscriber-only platform, STAT+ Connect