Tirbanibulin ointment 1% is approved in the United States and Europe for the treatment of actinic keratosis with demonstrated efficacy, safety, and tolerability when applied over a field up to 25 cm . This Phase 1 maximal-use trial determines the plasma pharmacokinetics, safety, and tolerability of tirbanibulin ointment 1% applied to 100 cm of the face or balding scalp in adults with actinic keratosis. Twenty-eight patients self-applied tirbanibulin once daily for a single 5-day treatment course.
View Article and Find Full Text PDFTacrolimus, a potent immunosuppressant drug widely used systemically to reduce the risk of organ rejection in transplants, has been repositioned for topical treatment of atopic dermatitis. This work describes the optimization of a new method for the determination of tacrolimus in whole blood after topical administration. Sample treatment consisted of an automated procedure based on protein precipitation followed by solid-phase extraction.
View Article and Find Full Text PDFObjective: To investigate the pharmacokinetics, safety and tolerability of aclidinium bromide 200 μg and 400 μg after a single dose and repeated once-daily doses in younger and elderly patients with moderate or severe chronic obstructive pulmonary disease (COPD).
Methods: Younger (40-59 years; n = 12) and elderly (≥ 70 years; n = 12) patients were treated with aclidinium via the Genuair® inhaler. Patients received once-daily aclidinium 200 μg for 3 days; after a 7-day washout period, patients received once-daily aclidinium 400 μg for 3 days.
Aclidinium bromide is a novel, inhaled long-acting muscarinic antagonist with low systemic activity developed for the treatment of COPD. It is an ester compound rapidly hydrolysed in plasma into inactive alcohol and acid metabolites. In this Phase I, open-label study, the rates and routes of elimination of radioactivity following intravenous administration of [¹⁴C]-aclidinium bromide were determined.
View Article and Find Full Text PDFAclidinium bromide is a long-acting muscarinic antagonist in development for chronic obstructive pulmonary disease treatment. This 2-part, phase I study evaluated the safety and tolerability of single ascending intravenous (IV) doses of aclidinium to determine its maximum tolerated dose (MTD; part I) and its absolute bioavailability (part II). Healthy male participants (N = 24) were randomized (1:1) in each part: 3-period crossover, placebo-controlled, single-ascending, alternating IV doses of aclidinium (25-400 µg) in part I and 2-period crossover, single-alternating IV and inhaled doses of aclidinium (200 µg) in part II.
View Article and Find Full Text PDFBackground: Aclidinium bromide is an inhaled, long-acting muscarinic antagonist currently in development for the treatment of chronic obstructive pulmonary disease. Renal impairment may affect drug clearance.
Objective: This study was conducted to evaluate the pharmacokinetic (PK) parameters, safety, and tolerability of aclidinium bromide and its metabolites in patients with normal and impaired renal function to determine whether dosing adjustments are required when renal dysfunction is present.
Aim: Aclidinium bromide is a muscarinic antagonist in development for the treatment of chronic obstructive pulmonary disease (COPD). This phase I trial in healthy subjects investigated the bronchodilator activity of aclidinium and its ability to reduce methacholine-induced bronchoconstriction.
Methods: This double-blind, partial-crossover study randomized 12 subjects to treatment with single doses of aclidinium (50, 300 or 600 microg) or placebo.
Following intensive discussions, review, alignment of procedures and multiple surveys among their member companies, the European Bioanalysis Forum (EBF) is providing a recommendation on how to integrate incurred sample reproducibility (ISR) in the bioanalytical process. The recommendation aims to provide guidance throughout the lifecycle of a validated method, including the application of the method in study support. In its recommendation, the EBF considers both the internal discussions with EBF member companies, as well as the input provided in international meetings where ISR was discussed.
View Article and Find Full Text PDFSystemic exposure to anticholinergics used for chronic obstructive pulmonary disease (COPD) may lead to side effects. This study assessed safety, tolerability, and pharmacokinetics of multiple doses of aclidinium bromide, a novel, long-acting antimuscarinic. Sixteen healthy participants received aclidinium bromide 200, 400, or 800 microg or placebo by dry-powder inhaler for 5 days, with > or =7 days washout.
View Article and Find Full Text PDFAlmotriptan is a novel highly selective 5-hydroxytryptamine(1B/1D) agonist developed for the acute oral treatment of migraine. The in vitro metabolism of almotriptan has been investigated using human liver subcellular fractions and cDNA-expressed human enzymes, to study the metabolic pathways and identify the enzymes responsible for the formation of the major metabolites. Specific enzymes were identified by correlation analysis, chemical inhibition studies, and incubation with various cDNA expressed human enzymes.
View Article and Find Full Text PDFAbsolute bioavailability, pharmacokinetics, and urinary excretion of almotriptan, a novel 5-HT(1B/1D) receptor agonist, were studied in 18 healthy males following single intravenous (i.v.) (3 mg), subcutaneous (s.
View Article and Find Full Text PDFAlmotriptan is a new anti-migraine agent with nanomolar affinity for human 5-HT(1B), 5-HT(1D), and 5-HT(1F) receptors, weak affinity for 5-HT(1A) and 5-HT(7) receptors and no significant affinity for more than 20 other pharmacological receptors. Almotriptan was effective in animal models predictive of anti-migraine activity in humans and had a good safety profile in animal studies. From the toxicological point of view, almotriptan has a profile similar to that of other marketed triptans.
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