2005
Pharmacodynamic Analysis of Target Inhibition and Endothelial Cell Death in Tumors Treated with the Vascular Endothelial Growth Factor Receptor Antagonists SU5416 or SU6668
Davis DW, Takamori R, Raut CP, Xiong HQ, Herbst RS, Stadler WM, Heymach JV, Demetri GD, Rashid A, Shen Y, Wen S, Abbruzzese JL, McConkey DJ. Pharmacodynamic Analysis of Target Inhibition and Endothelial Cell Death in Tumors Treated with the Vascular Endothelial Growth Factor Receptor Antagonists SU5416 or SU6668. Clinical Cancer Research 2005, 11: 678-689. PMID: 15701856, DOI: 10.1158/1078-0432.678.11.2.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAnimalsApoptosisDose-Response Relationship, DrugEndothelium, VascularFemaleHumansIndolesMaleMiceMice, NudeMiddle AgedNeovascularization, PathologicOxindolesPancreatic NeoplasmsPhosphorylationPropionatesPyrrolesReceptor, Platelet-Derived Growth Factor betaTransplantation, HeterologousVascular Endothelial Growth Factor Receptor-2ConceptsPlatelet-derived growth factor receptorTumor microvessel densityGrowth factor receptorMicrovessel densityCell apoptosisVascular endothelial growth factor receptorAdvanced solid malignanciesFactor receptorEndothelial growth factor receptorPrimary patient tumorsG core biopsyDose-dependent effectPhosphorylated VEGFR-2Primary human tumorsEndothelial cell deathCell deathEndothelial cell apoptosisTumor cell apoptosisTumor cell deathPost therapyCore biopsyPharmacodynamic analysisSolid malignanciesVessel sizeClinical trials
2004
A phase I surrogate endpoint study of SU6668 in patients with solid tumors
Xiong HQ, Herbst R, Faria SC, Scholz C, Davis D, Jackson EF, Madden T, McConkey D, Hicks M, Hess K, Charnsangavej C, Abbruzzese JL. A phase I surrogate endpoint study of SU6668 in patients with solid tumors. Investigational New Drugs 2004, 22: 459-466. PMID: 15292716, DOI: 10.1023/b:drug.0000036688.96453.8d.Peer-Reviewed Original ResearchConceptsCore needle biopsyBiologic effectsNeedle biopsyDay 1Solid tumorsMean apparent oral clearanceContrast-enhanced magnetic resonance imagingApparent oral clearanceDynamic contrast-enhanced magnetic resonance imagingCorrelative studiesHigh-performance liquid chromatography assayMagnetic resonance imagingDCE-MRI resultsEligible patientsOral clearanceLiquid chromatography assayEndpoint studiesAntiangiogenic agentsFunctional CTBlood flowTumor specimensPatientsTissue biopsiesDay 22PK studies