2 Primary · 9 Secondary · Reporting Duration: Cycle 2 days 1, 2, 15, 16 and 22
Frequency and severity of AEs as measured by safety and tolerability in combination Cycle 1 (28 days)
Frequency and severity of AEs as measured by safety and tolerability Maximum tolerated dose of ACY-241 as monotherapy as assessed by dose limiting toxicities Single- and multiple-dose peak-plasma concentration Cycle 2 (28 days)
Maximum tolerated dose of ACY-241 in combination with pomalidomide and low dose dexamethasone as assessed by dose limiting toxicities Change in acetylation of histone and tubulin as a measure of pharmacodynamics Change in fetal hemoglobin expression as a measure of pharmacodynamics Single- and multiple-dose area under the plasma concentration versus time curve ACY-241 metabolite concentration in blood samples Exposure response analyses of potential biomarkers of response. Quantification of M-protein as a measure of anti-tumor activity