We’re developing novel small molecule therapies targeting the most common genetic mutation affecting cystic fibrosis (CF) patients, ΔF508, with the goal of normalizing CFTR function. Our programs targeting the NBD1, ICL4, and TMD1 regions of CFTR are complementary, and together they have the potential to achieve best in class efficacy by normalizing CFTR function.

Mechanism
Program
Discovery
Lead Optimization
DC / IND-Enabling
Phase 1
Mechanism: NBD1
Series 1 SION‑638
Series 2 SION‑719
Series 2 SION‑451
Additional Candidates
Mechanism: ICL4
SION-109
Additional Candidates
Mechanism: TMD1
SION‑676
Additional Candidates