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- W4387079979 abstract "Abstract Background Depression is common globally, with an estimated 3.8% of the population affected. The condition can impact individuals’ ability to function in work, social and family settings. Many antidepressant drugs are currently prescribed, encompassing selective serotonin reuptake inhibitors (SSRIs), serotonin-nonresponsive reuptake inhibitors (SNRIs) and tetracyclic antidepressants (TeCAs). However pharmacokinetic and drug interactions are known, therefore a reliable quantitative clinical research method may play a role in researching the effects of their administration. Waters has developed a clinical research method for the following antidepressants in plasma; citalopram, desmethylfluoxetine, duloxetine, fluoxetine, fluvoxamine, O-desmethylvenlafaxine, sertraline and venlafaxine (10–1000 ng/mL); mirtazapine (5–500 ng/mL) and trazadone (30–3000 ng/mL). Methods Matrix matched calibrators and QCs were prepared using in-house stocks and pooled plasma. Samples (50 µL) were treated with internal standard in acetonitrile. A water/methanol/ammonium acetate gradient was used with a Waters™ XSelect™ Premier HSS T3 column on a Waters ACQUITY™ UPLC™ I-Class followed by detection on a Xevo® TQD mass spectrometer in a 5 min run. Results No system carryover was observed following analysis of plasma samples containing the highest concentration calibrators. Analytical sensitivity investigations indicated precise quantification (≤20% CV, ≤17.6% bias) at concentrations equal to or lower than the lowest concentration calibrator. Total precision and repeatability were assessed (3 pools, 5 replicates, 5 days; n = 25) and determined to be ≤10.0% RSD. Linearity experiments determined the method provided first or second order fits over the ranges analyzed; additionally, each run met acceptance criteria (coefficient of correlation ≥ 0.995, determined concentrations of calibrators ±15% of nominal, ±20% in the case of the lowest calibrator). Post-column infusion experiments demonstrated analytes eluted in regions free of major ion suppression or enhancement. Evaluation of matrix effects at low and high concentrations indicated compensation by the internal standard. Addition of high concentrations of several endogenous and exogenous materials did not affect quantification. Conclusion This quantitative method for clinical research demonstrates very good precision with minimal matrix effects and allows for the multiplexing of a panel of antidepressants in plasma in a short run time. For Research Use Only. Not for Use in Diagnostic Procedures." @default.
- W4387079979 created "2023-09-28" @default.
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- W4387079979 date "2023-09-27" @default.
- W4387079979 modified "2023-09-29" @default.
- W4387079979 title "B-339 A Clinical Research LC-MS/MS Method for the Analysis of Antidepressants in Plasma" @default.
- W4387079979 doi "https://doi.org/10.1093/clinchem/hvad097.658" @default.
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