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J Med Chem. 2018 Feb 22;61(4):1425-1435. doi: 10.1021/acs.jmedchem.7b01288. Epub 2018 Jan 10.

Discovery of N-(3-Carbamoyl-5,5,7,7-tetramethyl-5,7-dihydro-4H-thieno[2,3-c]pyran-2-yl)-lH-pyrazole-5-carboxamide (GLPG1837), a Novel Potentiator Which Can Open Class III Mutant Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) Channels to a High Extent.

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Galapagos NV , Generaal De Wittelaan L11 A3, 2800 Mechelen, Belgium.
Fidelta Ltd. , Prilaz Baruna Filipovića 29, Zagreb HR-10000, Croatia.
Galapagos SASU , 102 Avenue Gaston Roussel, 93230 Romainville, France.


Cystic fibrosis (CF) is caused by mutations in the gene for the cystic fibrosis transmembrane conductance regulator (CFTR). With the discovery of Ivacaftor and Orkambi, it has been shown that CFTR function can be partially restored by administering one or more small molecules. These molecules aim at either enhancing the amount of CFTR on the cell surface (correctors) or at improving the gating function of the CFTR channel (potentiators). Here we describe the discovery of a novel potentiator GLPG1837, which shows enhanced efficacy on CFTR mutants harboring class III mutations compared to Ivacaftor, the first marketed potentiator. The optimization of potency, efficacy, and pharmacokinetic profile will be described.

[Indexed for MEDLINE]

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