Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2011-2-25
pubmed:abstractText
This was a double-blind, placebo-controlled, randomized, parallel, dose-escalation study to assess the pharmacokinetics, platelet response, safety, and tolerability of supratherapeutic doses of eltrombopag (100 mg, 150 mg, and 200 mg once daily) administered for 5 days to 33 healthy adult volunteers. Plasma eltrombopag concentrations accumulated between days 1 and 5, with average increases of 66% to 81% for area under the plasma concentration-time curve from time zero to the end of the 24-hour dosing interval (AUC(0-?)) and 32% to 45% for maximum observed plasma concentration (C(max)) across doses. After 5 days of dosing, AUC(0-?) was dose-proportional and C(max) was less than dose-proportional over eltrombopag 100 to 200 mg with slope estimates (90% confidence intervals) of 0.92 (0.45-1.39) and 0.76 (0.29-1.22), respectively. Platelet counts peaked at day 14, and maximum change from baseline platelet count increased dose-dependently, with mean platelet count increases of 14, 67, 107, and 150 Gi/L for placebo and eltrombopag 100 mg, 150 mg, and 200 mg, respectively. There was no notable difference in day 14 mean platelet aggregation between eltrombopag (59 to 74%) and placebo (67%), although this was not tested statistically. There was no notable difference in adverse event frequency across eltrombopag doses. Eltrombopag pharmacokinetics and platelet response were dose-dependent, and doses up to 200 mg/d were well tolerated, with safety profiles similar to placebo.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1552-4604
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
51
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
301-8
pubmed:meshHeading
pubmed-meshheading:20418510-Adult, pubmed-meshheading:20418510-Area Under Curve, pubmed-meshheading:20418510-Benzoic Acids, pubmed-meshheading:20418510-Dose-Response Relationship, Drug, pubmed-meshheading:20418510-Double-Blind Method, pubmed-meshheading:20418510-Female, pubmed-meshheading:20418510-Hematologic Agents, pubmed-meshheading:20418510-Humans, pubmed-meshheading:20418510-Hydrazines, pubmed-meshheading:20418510-Male, pubmed-meshheading:20418510-Middle Aged, pubmed-meshheading:20418510-Platelet Aggregation, pubmed-meshheading:20418510-Platelet Count, pubmed-meshheading:20418510-Pyrazoles, pubmed-meshheading:20418510-Receptors, Thrombopoietin, pubmed-meshheading:20418510-Reproducibility of Results, pubmed-meshheading:20418510-Thrombocytopenia, pubmed-meshheading:20418510-Thrombopoiesis, pubmed-meshheading:20418510-Time Factors, pubmed-meshheading:20418510-Young Adult
pubmed:year
2011
pubmed:articleTitle
Clinical pharmacokinetics, platelet response, and safety of eltrombopag at supratherapeutic doses of up to 200 mg once daily in healthy volunteers.
pubmed:affiliation
GlaxoSmithKline, Research Triangle Park, North Carolina, USA.
pubmed:publicationType
Journal Article, Randomized Controlled Trial, Multicenter Study