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20090417 A Prospective Randomized Trial of CMX- 2043, a Lipoic Acid-Based Cytoprotectant, In Patients Undergoing Elective PCI: Primary Results of the SUPPORT-1 Trial Mitchell W. Krucoff, C.K. Ponde, Jagdish Hiremath, Mullasari Ajit, Eddison Ramsaran, Manesh R. Patel, Alan S. Lader, F. Howard Schneider, Reinier Beeuwkes, C. Michael Gibson, and James E. Tcheng.
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20090417 Conflict of Interest Clinical Advisory Board, Ischemix
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20090417 Incidence & Implications of Peri-Procedural MI: A Controversy of Definitions & Pathophysiology Resolute All Comers 2,121 patients Incidence: 3.6-17.8% 3 yr mortality: 2-8%
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20090417 PCI: A Human Laboratory for Cytoprotection PCI produces enzymatic events Selected protein elevations (CPK-MB, Troponin) represent myocellular necrosis PCI as a laboratory for RCT of cytoprotective strategies has FDA predicate (vitamin B6 metabolite PCI as a laboratory for RCT of cytoprotective strategies has FDA predicate (vitamin B6 metabolite pyridoxal-5’- phosphate monohydrate (MC- 1) in the MC-1 to Eliminate Necrosis and Damage (MEND-1)
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20090417 CMS-2043: A Novel Molecular Entity to Inhibit Ischemic Apoptosis Reactive oxygen species (ROS) anti-oxidant, AND Activates Akt (Ak mouse thymoma = Protein kinase B) via tyrosine kinase (TK)
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20090417 The SUPPORT 1 Study Safety and Efficacy of CMX-2043 in Subjects Undergoing PCI and Peri- Operative Reperfusion Treatment
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20090417 SUPPORT-1: Study Design Phase IIa Safety & Efficacy: CMX-2043 Prospective, randomized 3:1 3 doses (0.8, 1.6 & 2.4 mg/kg) vs placebo Multi-center (N=6) Elective PCI Patients WNL biomarkers & Non-acute ECG Receiving single stent of ≥ 18 mm or multiple stents Primary Outcome Measures: Incidence of CK-MB elevation <24 hours following PCI Change in cardiac biomarkers <24 hrs following PCI CK-MB, Troponin T Secondary Outcome Measure: MI as >X3 peak CPK
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20090417 SUPPORT-1 Exclusion Criteria Acute/unstable angina MI within 14 days Coagulopathy Clinical valvular disease Clinical peripheral vascular disease TIA, stroke or IC bleed within 90 days Creatinine level ≥ 1.5 times ULN
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20090417 SUPPORT-1 Sites and Investigators
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20090417 SUPPORT I: Patient Accrual/Randomization
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20090417 SUPPORT-1 Baseline Characteristics
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20090417 SUPPORT I: Arteries Stented Per Rx Group
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20090417 Primary Endpoint: 24 Hr CK-MB Change from Baseline
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20090417 24 Hr CK-MB Change From Baseline (ng/mL) CMX-2043 treatment p=0.05 vs. Placebo p = 0.05
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20090417 24 Hr Troponin T Change from Baseline CMX-2043 treatment
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20090417 24 Hr Peri-Procedural MI by CK-MB >X3 ULN CMX-2043 treatment p=0.024 vs. Placebo
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20090417 24 Hr Peri-Procedural MI by Troponin T >X3 ULN CMX-2043 treatment p=0.050 vs. Placebo
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20090417 SUPPORT-1 Adverse Events Summary Category 0.8 mg/kg (N = 36) 1.6 mg/kg (N = 35) 2.4 mg/kg (N = 36) Placebo (N = 34) Any AEs7 ( 19.44%)14 ( 40.00%)11 ( 30.56%)10 ( 29.41%) Drug Related AEs0 ( 0.00%)3 ( 8.57%)1 ( 2.78%)2 ( 5.88%) Serious AEs1 ( 2.78%)2 ( 5.71%)1 ( 2.78%)0 ( 0.00%) AEs leading to Study discontinuation 0 ( 0.00%)1 ( 2.86%)0 ( 0.00%) Deaths0 ( 0.00%)
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20090417 SUPPORT I: Limitations Serum marker elevations with elective PCI have biochemical relevance for NME testing vs. human apoptosis, however the clinical relevance of these findings is unproven
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20090417 SUPPORT I Primary Results: Conclusions SUPPORT I was a prospective, randomized, multicenter Phase IIa dosing study of protection from PCI-induced myonecrosis by CMX-2043 infusion All doses of CMX-2043 studied (0.8, 1.6 and 2.4 mg/kg) appeared safe in this population High dose (2.4 mg/kg) infusion of CMX-2043 was associated with statistically significant reduction of serum markers of myonecrosis and MI defined by >3X elevation above ULN Results of SUPPORT I suggest the basis for further study and a Phase III study design
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