Curis, Inc. · NASDAQ:CRIS
Curis — ASCO Annual Meeting 2013
12 slides from Curis's conference presentation, Jun 4, 2013
Slide 1: Phase I Study of Safety and Pharmacokinetics of GDC-0917
1 Phase I Study of Safety and Pharmacokinetics of GDC-0917, an Antagonist of Inhibitor of Apoptosis Proteins in Patients with Refractory Solid Tumors or Lymphoma A Tolcher,1 K Papadopoulos,1 A Patnaik,1 WJ Fairbrother,2 H Wong,2 N Budha,2 WC Darbonne,2 F Peale,2 M Mamounas,2 S Royer-Joo,2 R Yu,2 CC
Slide 2: IAP antagonists promote cell death through both intrinsic and extrinsic pathways
IAP antagonists promote cell death through 2 both intrinsic and extrinsic pathways TNFα TNFR1 Extrinsic TRADD Intrinsic FADD2 TRAF2 TRAF3 BH3-only proteins RIP2 cIAPs TRAF2 NIK Bid cIAPs Bax/Bak Bcl-2/Bcl-xL/Mcl-1 Ubq Ubq Smac mimetic Caspase-8, -10 Mitochondria GDC-0917 Smac Cytochrome C mimetic GD
Slide 3: IAP selective antagonist: GDC-0917
3 IAP selective antagonist: GDC-0917 Breast cell line: MDA-MB-231.X1 GDC-0917, a Smac mimetic, binds to (10 mg/kg) (100 mg/kg) the same sites on the IAP proteins as the IAP protein-interaction motifs of Smac and caspase-9 GDC-0917 binding in vitro induces apoptosis via caspase-3 and -7 activatio
Slide 4: GDC-0917 Phase I study design
4 GDC-0917 Phase I study design Phase I, dose-escalation study using a modified continual reassessment method (mCRM) design in patients with refractory solid tumors or lymphoma Endpoints: − Primary: Dose-limiting toxicities (DLT, assessed D1-24), adverse events (AEs), and pharmacokinetics (PK) −
Slide 5: Patient demographics and baseline characteristics
Patient demographics and baseline 5 characteristics (N=42 patients) All patients, N (%) Age in years , median (range) 61 (36−86) Sex Female 20 (48) Male 22 (52) ECOG status 0 21 (50) 1 21 (50) Primary tumor type Breast 10 (24) Colorectal 10 (24) Prostate 6 (14) Small cell lung 4 (10) Ovarian 2 (5) O
Slide 6: Treatment exposure and disposition
6 Treatment exposure and disposition (N=42 patients) All patients, N (%) Total treated 42 (100) Extent of exposure to GDC-0917, 2 (1−15) median cycles (range) Reason for study discontinuation Disease progression 28 (67) Adverse event 7 (17) Physician decision 3 (7) Death* 2 (5) Patient decision 2 (5
Slide 7: Safety summary
7 Safety summary Safety Events Description DLTs Grade 3 fatigue (1 pt, 450 mg dose level) • Fatigue: n=9 (1 Grade 3 [DLT], 4 Grade 2, 4 Grade 1) Most frequent GDC-0917- • Nausea: n=9 (2 Grade 2, 7 Grade 1) related AEs • Rash: n=6 (1 Grade 3, 1 Grade 2, 4 Grade 1) (in > 10% of pts) • Vomiting: n=6 (6
Slide 8: GDC-0917 pharmacokinetics
8 GDC-0917 pharmacokinetics GDC-0917 peak concentrations Tmax: 2−3h post dosing Mean plasma elimination t1/2: 4−8h Dose-proportional exposure with no apparent accumulation at steady state Cycle 1 mean plasma concentration-time profiles of Cycle 1 mean plasma concentration-time profiles of GDC-
Slide 9: GDC-0917 pharmacodynamics
9 GDC-0917 pharmacodynamics Rapid down modulation of cIAP1 in PMBCs at all dose levels Decreased cIAP1 (2 pts, at 40 and 200 mg) and increased activated caspase-3 and cPARP (1 pt at 200 mg) in tumor biopsies* GDC-0917 dosed at 60 mg or higher resulted in a 40-70% increase in plasma MCP1 nine h
Slide 10: Preliminary signs of efficacy
10 Preliminary signs of efficacy Two patients (4.8%) had unconfirmed complete response (uCR) 1. MALT lymphoma (300 mg): PET CR end of Cycle 5 (off study after 5 Cycles per patient’s choice) 2. Ovarian cancer (450 mg): CR end of Cycle 2 (off study after 2 Cycles due to AE), continued follow-up show
Slide 11: Summary and overall conclusions
11 Summary and overall conclusions GDC-0917 had a favorable safety and PK profile in patients with advanced malignancies MTD was not determined, although ED90 based on preclinical xenograft studies was reached Pharmacodynamic modulation was observed Antitumor activity was observed in some pa
Slide 12: Acknowledgements
12 Acknowledgements Thank you to the many patients for their participation in this trial Genentech exclusively licensed GDC-0917 to Curis, Inc. Curis designated the molecule CUDC-427 and has the sole right and responsibility for all research, development, manufacturing and commercialization activiti