This study will examine the safety and tolerability of IGN523 administered as an IV infusion. The main purpose of the study is to determine the maximum tolerated dose (MTD), which is the highest dose that does not cause unacceptable side effects of IGN523 in patients with acute myeloid leukemia (AML). The MTD will be determined by observing the dose-limiting toxicities (the side effects that prevent further increases in dose) of IGN523. In addition, the pharmacokinetic profile and anti-leukemia activity of IGN523 will be assessed. A recommended Phase 2 dose (RP2D) of IGN523 will be identified, on the basis of safety, pharmacokinetic (PK), and pharmacodynamic (PD) data.
Primary Objectives: * Evaluate the safety and tolerability of IGN523 administered weekly * Determine the MTD and dose limiting toxicity (DLT) of IGN523 when administered weekly during the DLT Evaluation Period * Identify a recommended Phase 2 dose (RP2D) of IGN523 on the basis of safety, PK, and PD data Secondary Objectives: * Assess the incidence of antibody formation to IGN523 * Characterize the PK of IGN523 in subjects with relapsed or refractory AML * Perform a preliminary assessment of the anti-leukemic activity of IGN523 in subjects with relapsed or refractory AML * Perform a preliminary assessment of biologic markers that might predict IGN523 anti-leukemic activity Estimated Enrollment: 50 Study Start Date: February 2014 Estimated Study Completion Date: March 2016 Estimated Primary Completion Date: September 2015 (Final data collection for primary outcome measure)
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
19
Given intravenously every week for 8 weeks. Dosing beyond 8 weeks will be permitted for subjects meeting criteria for ongoing clinical benefit and acceptable safety.
UCSD Medical Center / Thornton Hospital
La Jolla, California, United States
Winship Cancer Institute, Emory University
Atlanta, Georgia, United States
Indiana Blood and Marrow Transplantation Clinic
Indianapolis, Indiana, United States
University of Michigan Health System
Ann Arbor, Michigan, United States
MD Anderson Cancer Center
Houston, Texas, United States
University of Washington
Seattle, Washington, United States
Incidence of adverse events
Time frame: Through 1 month following last dose
Incidence of antidrug antibodies to IGN523
Time frame: Through 6 months following last dose
Blood concentrations of IGN523
Time frame: Through 6 months following last dose
Assess anti-leukemic activity of IGN523
Subjects with measurable disease will be assessed by standard criteria (Cheson). Subjects will be formally evaluated for response at the end of Cycle 2; additional evaluations may be performed during the study as clinical indicated.
Time frame: Initial assessment after 8 weeks of treatment
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