Abstract
In this paper we show the application of the Tasso OnDemand™, a novel automated sample collection device, in conjunction with volumetric absorptive microsampling (VAMS) for the development of gefapixant, a P2X3 receptor antagonist currently under clinical development for the treatment of refractory and unexplained chronic cough and endometriosis-related pain. ALC-MS/MS bioanalytical method was developed and validated using VAMS to support this development program. This method was utilized in a drug-drug interaction study to establish a mathematical bridging relationship with data obtained from a validated plasma assay used to support the program. The VAMS bioanalytical method and the predictability of the mathematical relationship is reported and discussed here.
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