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Pharmacokinetics of panobinostat: Inter-species difference in metabolic stability [Metabolism, Transport, and Pharmacogenetics]

ASPET

The objective of this study was to examine the in vitro metabolic stability of panobinostat in different matrices and assess the influence of that metabolic stability on the in vivo pharmacokinetics and CNS delivery of panobinostat.

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Preclinical systemic pharmacokinetics, dose-proportionality, and CNS distribution of the ATM inhibitor WSD0628, a novel radiosensitizer for the treatment of brain tumors [Metabolism, Transport, and Pharmacogenetics]

ASPET

Efficacy of radiosensitizers for brain tumors may be influenced by a lack of effective drug delivery across the blood-brain barrier (BBB). The objective of this study was to evaluate the systemic pharmacokinetics and mechanisms that influence the CNS distribution of WSD0628, a novel and potent ATM inhibitor, in the mouse.

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An Integrative Approach to Elucidate Mechanisms Underlying the Pharmacokinetic Goldenseal-Midazolam Interaction: Application of In Vitro Assays and Physiologically Based Pharmacokinetic Models to Understand Clinical Observations [Metabolism, Transport, and Pharmacogenetics]

ASPET

The objective of this study was to mechanistically assess the pharmacokinetic goldenseal-midazolam interaction using an integrated in vitro - in vivo - in silico approach. min -1 , respectively). The objective of the current work was to evaluate fundamental mechanisms underlying the clinically observed goldenseal-midazolam interaction.

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Dysregulation of Human Hepatic Drug Transporters by Proinflammatory Cytokines [Metabolism, Transport, and Pharmacogenetics]

ASPET

Proinflammatory cytokines, elevated during inflammation caused by infection and/or autoimmune disorders, result in reduced clearance of drugs eliminated primarily by cytochrome P450 enzymes (CYPs). However, the effect of cytokines on hepatic drug transporter expression or activity has not been well-studied. or 1 ng/mL).

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Lenacapavir Exhibits Atropisomerism - Mechanistic Pharmacokinetics and Disposition Studies of Lenacapavir Reveal Intestinal Excretion as a Major Clearance Pathway [Metabolism, Transport, and Pharmacogenetics]

ASPET

Lenacapavir (LEN), a long-acting injectable, is the first approved human immunodeficiency virus type 1 capsid inhibitor and one of a few FDA-approved drugs that exhibit atropisomerism. The volume of distribution was moderate in nonclinical species and consistent with the tissue distribution observed by whole body autoradiography in rats.

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Factors influencing the Central Nervous System (CNS) distribution of the ATR inhibitor elimusertib (BAY1895344): Implications for the treatment of CNS tumors [Metabolism, Transport, and Pharmacogenetics]

ASPET

GBM has a poor prognosis despite aggressive treatment, in part due to lack of adequate drug permeability at the BBB. CNS distribution of elimusertib is partially limited by P-gp efflux at the BBB, and high binding to CNS tissues leads to low levels of pharmacologically active (unbound) drug in the brain.

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Central Nervous System Distributional Kinetics of Selected Histone Deacetylase Inhibitors [Metabolism, Transport, and Pharmacogenetics]

ASPET

This lack of activity could be due to insufficient CNS exposure to the unbound drug. In this study, we investigated the systemic pharmacokinetics and subsequent CNS distribution of two potent HDACIs, vorinostat and quisinostat, in the murine model.