CFTR Modulator

Tezacaftor (VX-661) is a F508del CFTR corrector. It helps CFTR protein reach the cell surface. However, Ivacaftor (VX-770, HY-13017), a CFTR potentiator, helps to prolong the opening time of cell surface CFTR protein channels. Tezacaftor combining with Ivacaftor, shows potent efficacy against cystic fibrosis and diseases with homozygous for the CFTR Phe508del mutation. Moreover, Elexacaftor (VX-445, HY-111772) is also a CFTR corrector. Elexacaftor-Tezacaftor-Ivacaftor aims at with cystic fibrosis (CF) with at least one Phe508del mutation, often avoids the indication for lung transplantation.

Elexacaftor (VX-445, Compound 1) is a modulator of cystic fibrosis transmembrane conductance regulator (CFTR). Elexacaftor (VX-445, Compound 1) facilitates the processing and trafficking of CFTR to increase the amount of CFTR at the cell surface.

Lumacaftor (VX-809; VRT 826809) is a CFTR modulator that corrects the folding and trafficking of CFTR protein.

Vanzacaftor (VX-121) is an orally active noval corrector of Cystic fibrosis transmembrane conductance regulator (CFTR). Vanzacaftor improves processing and trafficking of CFTR protein as well as increases chloride transport in triple combined with Tezacaftor (HY-15448) and Deutivacaftor. Vanzacaftor-Tezacaftor-Deutivacaftor is safe and well tolerated, improving lung function, respiratory symptoms, and CFTR function with cystic fibrosis, which is promising for research in the field of cystic fibrosis diseases.

(R)-Vanzacaftor ((R)-VX-121) is a Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) modulator with max activity of 30-60% and EC₅₀ <1 μM in enteroid cells. (R)-Vanzacaftor can be used for the research of cystic fibrosis.

NJH-2-057 is an EN523 OTUB1 recruiter linked to lumacaftor, a agent used to treat cystic fibrosis that binds ΔF508-CFTR.

Nesolicaftor (PTI-428) is a specific cystic fibrosis transmembrane conductance regulator (CFTR) amplifier.

IDOR-4 is a type IV CFTR corrector. IDOR-4 restores F508del-CFTR trafficking to the cell surface.

Navocaftor (GLPG 3067), as a cystic fibrosis transmembrane regulator (CFTR), is a protein modulator (US 20200377491 Al, example 1).

Galicaftor (ABBV-2222; GLPG-2222) is a potent and orally active cystic fibrosis transmembrane conductance regulator (CFTR) corrector. Galicaftor can be used for cystic fibrosis research.

SRI-37240 is a potent premature termination codons (PTCs) inhibitor. SRI-37240 suppresses CFTR nonsense mutations. SRI-37240 alters cellular translation termination at PTCs in HEK293T cells. SRI-37240 can also restore CFTR function in primary bronchial epithelial cells when combination with G418.

Posenacaftor (PTI-801) sodium is a cystic fibrosis transmembrane regulator (CFTR) protein modulator that corrects the folding and trafficking of CFTR protein. Posenacaftor sodium is used for the research of cystic fibrosis (CF).

VRT-325 is a CFTR modulator. VRT-325 inhibits disulfide cross-linking between cysteines in transmembrane segments 6 and 7 of CFTR and P-gp. VRT-325 promotes maturation of CFTR and P-gp processing mutants, rescues ΔF508-CFTR folding at the endoplasmic reticulum. VRT-325 binds ΔF508-CFTR nucleotide-binding domain 1, and increases mature ΔF508-CFTR cell surface expression and chloride conductance. VRT-325 can be used for the research of cystic fibrosis^[1][3].

Tezacaftor-d4 (VX-661-d4) is the deuterium-labeled Tezacaftor (HY-15448), a F508del CFTR corrector. Tezacaftor helps CFTR protein reach the cell surface.

(R)-Elexacaftor ((R)-VX-445) is the enantiomer of Elexacaftor (HY-111772). Elexacaftor is an orally active CFTR modulator that targets nucleotide-binding domain 1. Elexacaftor stabilizes misfolded F508del-CFTR protein, enhances its trafficking to the plasma membrane, and significantly improves metabolic stability, thermal stability and ion conductivity. Elexacaftor not only restores chloride transport function in nasal epithelial cells and rescues multiple CFTR mutation subtypes, but also exerts multiplicative synergistic effects with Ivacaftor (HY-13017), and is often used in a triple combination therapy with Tezacaftor (HY-15448). Elexacaftor is widely used in basic and clinical translational research on cystic fibrosis.

Bamocaftor (VX-659) is a cystic fibrosis transmembrane conductance regulator (CFTR) corrector designed to restore F508del-CFTR protein function. Bamocaftor can be used combine with Tezacaftor (HY-15448) and Ivacaftor (HY-13017) in cystic fibrosis research.

Olacaftor (VX-440) is a cystic fibrosis transmembrane conductance regulator (CFTR) modulator extracted from patent US9782408.

Cavosonstat (N91115) is an orally active S-nitrosoglutathione reductase (GSNOR) inhibitor. Cavosonstat is a CFTR stabilizer, and can be used for cystic fibrosis research.

NJH-2-056 is a deubiquitinase-targeting chimera (DUBTAC) linking the OTUB1 recruiter EN523 to the CFTR chaperone lumacaftor. NJH-2-056 can be used for cystic fibrosis research.

CFTR corrector 12 (compound 17C) is a bithiazole derivative, serving as CFTR corrector. CFTR corrector 12 has the ability to correct some folding defective mutants of the channel responsible for the control of chloride transport across the plasma membrane. CFTR corrector 12 recovers the α-sarcoglycan (α-SG) content in mutant cells.