In recent years there has been much discussion related to the use of fewer animals for pre-clinical safety and efficacy testing. In addition, regulatory agencies have requested testing in pediatric patient populations for all new drug compounds. With the development of more sensitive instrumentation, the need for smaller blood sample size analysis, has been realized. Over the years, techniques such as Dried Blood Spot (DBS) have been utilized to sample less than 50 uL of blood. While DBS seems to work well for many analyses, the historical PK database for most clinical trials has been through the quantitation of drugs from plasma or serum.
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Antisense oligonucleotides (ASOs) are short, chemically modified, single-stranded DNA/RNA
oligonucleotides that specifically target to genes of interest and regulate target protein
Pregabalin, (S)-3-(aminomethyl)-5-methylhexanoic acid, is an analogue of the neurotransmitter gamma amino butyric acid (GABA). It is used for the treatment of peripheral and central neuropathic pain in adults and as an adjunctive therapy for refractory partial seizures. Pregabalin binds potently to the α2δ (alpha2delta) subunit of the voltage-dependent calcium channel in the central nervous system and its binding at this site reduces calcium influx at the nerve terminal, leading to the release of several neurotransmitters, such as glutamate and noradrenalin. The aim of this study is to develop a sensitive, specific, robust and rapid LC-MS/MS method: Use simple extraction procedure; With no interference from matrix; With short run time.
Overcoming Stability Issues in the Development of an LC-MS/MS Method for the Quantitation of Azacitidine in Human Plasma