Fevipiprant, also known as NVP-QAW039 or QAW039, is an oral active and potent CRTh2 receptor antagonist and potentially useful for asthma treatment. [(3)H]-QAW039 displayed high affinity for the human CRTh2 receptor (1.14 ± 0.44 nM) expressed in Chinese hamster ovary cells, the binding...