Scientific Symposium Opening session CTOS (1 pm to 5 pm) CTOS reception (5pm to 6pm) Dinner/Consensus Discussion (6pm to 9 pm) Panel George Demetri, MD Scott Schuetze, MD, PhD Laurence Baker, DO (moderator)
Gleevec G Vs. Gem/TXT STS 219 87 start date Gleevec Nov ’01 G Vs. Gem/TXT STS Jan ’03 Columbia 15 NP Emory P* Mayo 6 MD Anderson 45 20 U of Michigan 69 29 Memorial Sloan Kettering 34 11 National Cancer Institute P Partners Dana Farber Massachusetts General 1 UofCalifornia Los Angeles Washington Cancer Center 14 10 Lutheran General ** 42 Total 219 87 P=Participating NP=Not Participating *Awaiting Contract **No longer accruing
CR PR CR PR SD SD PD PD Month 2 Month 4
PRACTICAL ADVANTAGES OF THE BAYESIAN DESIGN The hierarchical model allows data from each subtype to provide information about parameters in all other subtypes It avoids two undesirable approaches, conducting : - One trial, assuming one common parameter, ignoring the subtypes, or - Separate trials that ignore each others’ data User-friendly front ends greatly facilitate trial conduct
95% Posterior Credible Intervals by Histologic Subtype q = Pr( Response )
74 yo man with myofibroblastic sarcoma Pre-Gleevec H &. E 8 weeks on Rx cKIT
65 yo man with malignant fibrous histiocytoma Pre-Gleevec H & E 2 weeks on Rx cKIT
Planned Studies Gemcitabine/docetaxel in bone sarcomas Imatinib neoaduvant treatment of DFSP AMG 706 Phase II trial in sarcoma BMS SRC inhibitor Ziopharm active ifosphamide moiety Uterine sarcoma adjuvant therapy