Redefining what’s possible in cystic fibrosis treatment

Our vision is to restore CFTR function for people living with CF.

Who We Are

We are a clinical-stage biopharmaceutical company on a mission to revolutionize the current treatment paradigm for cystic fibrosis (“CF”) patients by developing novel medicines that normalize the function of the cystic fibrosis transmembrane conductance regulator (“CFTR”) protein to deliver clinically meaningful benefit to CF patients. Our goal is to deliver differentiated medicines for people living with CF that can restore CFTR function to as close to normal as possible by directly stabilizing CFTR’s nucleotide-binding domain 1 (“NBD1”). Leveraging more than a decade of our co-founders’ research on NBD1, we are advancing a pipeline of small molecules engineered to correct the defects caused by F508del, the most common CF genetic mutation, which resides in NBD1. We are also developing a portfolio of complementary CFTR modulators designed to work synergistically with our NBD1 stabilizers to improve CFTR function.

Our vision is to build a CF franchise anchored by our NBD1 stabilizers to deliver clinically meaningful benefit to people with CF.

Latest News

January 8, 2025
Sionna Therapeutics Announces the Appointment of Dr. Marcella Kuhlman Ruddy and Dr. Jo Viney to its Board of Directors
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November 18, 2024
Sionna Therapeutics Announces Appointment of Laurie Stelzer to its Board of Directors
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August 13, 2024
Sionna Therapeutics Announces Initiation of Two Phase 1 Clinical Trials of SION-719 and SION-451, in Development for Cystic Fibrosis
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