A Randomized, Double-Blind, Placebo-Controlled, First-In-Human Study of the Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of ALN-CFB, an Investigational siRNA Therapeutic Against Complement Factor B, in Participants With Paroxysmal Nocturnal Hemoglobinuria and Persistent Anemia on Approved C5-Inhibitor Therapy
Latest Information Update: 10 Nov 2025
At a glance
- Drugs ALN CFB (Primary)
- Indications Anaemia; Paroxysmal nocturnal haemoglobinuria
- Focus Adverse reactions; First in man
- Sponsors Regeneron Pharmaceuticals
Most Recent Events
- 06 Nov 2025 Planned End Date changed from 7 Dec 2029 to 4 Jan 2030.
- 06 Nov 2025 Planned primary completion date changed from 14 Sep 2029 to 11 Oct 2029.
- 06 Nov 2025 Planned initiation date changed from 13 Oct 2025 to 28 Nov 2025.