Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2000-10-13
pubmed:abstractText
GW395058, a PEGylated peptide agonist of the thrombopoietin receptor, stimulates megakaryocytopoiesis and has previously been shown to increase platelet counts in vivo. The pharmacokinetics and pharmacodynamics of GW395058 were characterized using a randomized, crossover study in a large-animal model (dog) of chemotherapy-induced thrombocytopenia. Nine beagle dogs received i.v. carboplatin (350 mg/m(2)) on day 0 and day 28. GW395058 (1.31 mg/kg) (n = 6) or vehicle control (n = 3) was administered on day 1 and day 29 either as an i.v. bolus or s.c. injection. After i.v. administration, peak concentrations of GW395058 occurred rapidly, while the half-life averaged approximately 56 h. Bioavailability (+/- standard deviation) of GW395058 given s.c. was 78.2% (20.9%). GW395058 (i.v. and s.c.) ameliorated the platelet nadir (p = 0.0086) and resulted in a shorter time to recovery compared to the control group. The mean nadir platelet counts following carboplatin administration were 197,000 cells/microl (80,000) for the i.v. GW395058-dose group, 183,000 cells/microl (72,000) for the s.c.-dose group and 71,000 cells/microl (38,000) for the vehicle-alone group. GW395058 reduced the thrombocytopenic effects of carboplatin in dogs. No GW395058-related adverse side effects were observed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1066-5099
pubmed:author
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
360-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:11007920-Animals, pubmed-meshheading:11007920-Carboplatin, pubmed-meshheading:11007920-Dogs, pubmed-meshheading:11007920-Female, pubmed-meshheading:11007920-Injections, Intravenous, pubmed-meshheading:11007920-Injections, Subcutaneous, pubmed-meshheading:11007920-Leukocyte Count, pubmed-meshheading:11007920-Male, pubmed-meshheading:11007920-Metabolic Clearance Rate, pubmed-meshheading:11007920-Molecular Mimicry, pubmed-meshheading:11007920-Neoplasm Proteins, pubmed-meshheading:11007920-Neutrophils, pubmed-meshheading:11007920-Peptides, pubmed-meshheading:11007920-Platelet Count, pubmed-meshheading:11007920-Proto-Oncogene Proteins, pubmed-meshheading:11007920-Receptors, Cytokine, pubmed-meshheading:11007920-Receptors, Thrombopoietin, pubmed-meshheading:11007920-Thrombocytopenia, pubmed-meshheading:11007920-Thrombopoietin
pubmed:year
2000
pubmed:articleTitle
The pharmacokinetics and pharmacodynamics of GW395058, a peptide agonist of the thrombopoietin receptor, in the dog, a large-animal model of chemotherapy-induced thrombocytopenia.
pubmed:affiliation
North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't