Pharmacokinetic/Pharmacodynamic Model of CW002, an Investigational Intermediate Neuromuscular Blocking Agent, in Healthy Volunteers
| Autor: | Kim L. R. Brouwer, Cynthia A. Lien, Virginia D. Schmith, Joel S. Owen, Paul M. Heerdt, Josh D. Kaullen, John J. Savarese |
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| Rok vydání: | 2018 |
| Předmět: |
Adult
Male Adolescent Population Pharmacology 030226 pharmacology & pharmacy Models Biological Article Cohort Studies 03 medical and health sciences Young Adult 0302 clinical medicine Pharmacokinetics 030202 anesthesiology Healthy volunteers Potency Medicine Humans Compartment (pharmacokinetics) education education.field_of_study business.industry Middle Aged Neuromuscular Blocking Agents Isoquinolines Healthy Volunteers Anesthesiology and Pain Medicine Tolerability Pharmacodynamics Female business |
| Zdroj: | Anesthesiology. 128(6) |
| ISSN: | 1528-1175 |
| Popis: | BackgroundCW002 is an investigational nondepolarizing, neuromuscular blocking agent with a rapid onset and intermediate duration of action in animals. This is a single ascending dose, healthy subject study exploring tolerability, pharmacokinetics, and potency.MethodsPopulation pharmacokinetic and pharmacokinetic/pharmacodynamic models were developed using plasma drug concentration data from a previously published dose–response study in 28 healthy subjects receiving single doses of CW002 during sevoflurane anesthesia. Subjects included in the models were from five different dose cohorts (cohorts 3, 4, 5, 6, and 8 receiving 0.04, 0.06, 0.08, 0.10, and 0.14 mg/kg, respectively). Serial arterial plasma concentrations and muscle twitch heights were monitored.ResultsA four-compartment model was fit to the concentration–time data, whereas a transit compartment with a sigmoid Emax model was fit to the pharmacokinetic/pharmacodynamic data. The population pharmacokinetics of CW002 was linear with very low interindividual variability in clearance (10.8%). Simulations were conducted to predict the onset and offset of effect at 2×, 3×, and 4× ED95. The time to 80% block was predicted to be 1.5, 0.8, and 0.7 min for 2×, 3×, and 4× ED95 doses, respectively. The simulated 25 to 75% recovery index was independent of dose.ConclusionsCW002 has predictable pharmacokinetics and is likely to have a rapid onset with an intermediate duration of action at 3× ED95. This model provides information to inform critical decisions (e.g., dose, study design) for continued development of CW002. |
| Databáze: | OpenAIRE |
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