Phase 1b: To evaluate the side effects and determine the best dose of ACY-1215 in combination with Pomalidomide and low-dose dexamethasone in patients with relapsed-and-refractory multiple myeloma. Phase 2: To determine the overall response rate of ACY-1215 in combination with Pomolidomide and low-dose dexamethasone in patients with relapsed-and-refractory multiple myeloma
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
103
ACY-1215 (Ricolinostat) 160mg QD Days 1-21 with pomalidomide 4mg QD Days 1-21 and dexamethasone 40mg QD Days 1,8,15,22 of a 28-day cycle
Local Institution - 201
Boston, Massachusetts, United States
Cleveland Clinic
Cleveland, Ohio, United States
Maximum Tolerated Dose (MTD) of ACY-1215- Phase 1b
The maximum tolerated dose (MTD) was defined as the highest dose level at which no more than 1 of 6 patients experienced a dose-limiting toxicity (DLT) within the first 28-day cycle. If no more than 1 of these 6 patients experienced a DLT within the first 28-day cycle, then the last dose level enrolled to meet these criteria was identified as the recommended dose for the Phase 2 segment of the study.
Time frame: From first dose until the end of Phase 1b (up to a maximum of approximately 50 weeks).
Overall Response Rate (ORR) Per Investigator - Phase 2
Overall response rate (ORR) is defined as the percentage of participants with a best response of stringent complete response (sCR), complete response (CR), very good partial response (VGPR), or partial response (PR). sCR: * No detectable myeloma cells in the bone marrow. * Normal free light chain ratio. * Absence of clonal cells in the bone marrow. CR: * Negative immunofixation on the serum and urine. * Disappearance of any soft tissue plasmacytomas. * Less than 5% plasma cells in the bone marrow. VGPR: * Serum and urine M-protein detectable by immunofixation but not on electrophoresis, or * At least a 90% reduction in serum M-protein plus urine M-protein level less than 100 mg per 24 hours. PR: * At least a 50% reduction in serum M-protein. * Reduction in 24-hour urinary M-protein by at least 90% or to less than 200 mg per 24 hours. * For patients with non-secretory myeloma, a reduction of at least 50% in the size of soft tissue plasmacytomas is required.
Time frame: From first dose until disease progression, study drug toxicity, end of study, or death due to any cause (up to approximately 120 months).
Time to Response (TTR)
Time to response (TTR) was defined as the time from first dose of study treatment to the first documentation of response (either partial response (PR) or complete response (CR)). CR: * Negative immunofixation on the serum and urine. * Disappearance of any soft tissue plasmacytomas. * Less than 5% plasma cells in the bone marrow. PR: * At least a 50% reduction in serum M-protein. * Reduction in 24-hour urinary M-protein by at least 90% or to less than 200 mg per 24 hours. * For patients with non-secretory myeloma, a reduction of at least 50% in the size of soft tissue plasmacytomas is required.
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Time frame: From first dose until disease progression, study drug toxicity, end of study, or death due to any cause (up to approximately 120 months).
Duration of Response (DoR)
Duration of Response (DOR) was defined as the time from first partial response (PR) or complete response (CR) to the first documentation of progressive disease (PD) or death. PR: * \>= 50% reduction in serum M-protein. * Reduction in 24-hour urinary M-protein by \>= 90% or to less than 200 mg per 24 hours. * For non-secretory myeloma, a reduction of \>= 50% in size of soft tissue plasmacytomas. CR: * Negative immunofixation on the serum and urine. * Disappearance of any soft tissue plasmacytomas. * \< 5% plasma cells in the bone marrow. PD: * Increase of 25% or more from nadir in serum M-protein, absolute increase of \>= 0.5 g/dL. * Increase of 25% or more from nadir in 24-hour urinary M-protein, absolute increase of \>=200 mg/24 hours. * Increase of 25% or more in the percentage of bone marrow plasma cells, absolute increase of \>=10%. Calculated using Kaplan-Meier estimates.
Time frame: From first dose until disease progression, study drug toxicity, end of study, or death due to any cause (up to approximately 120 months).
Time to Progression (TTP)
Time to progression (TTP) was defined as the time from the date of first dose to the date of first documentation of progressive disease (PD). PD: * Increase of 25% or more from nadir in serum M-protein, absolute increase of \>= 0.5 g/dL. * Increase of 25% or more from nadir in 24-hour urinary M-protein, absolute increase of \>=200 mg/24 hours. * Increase of 25% or more in the percentage of bone marrow plasma cells, absolute increase of \>=10%. * New bone lesions or soft tissue plasmacytomas or increase size of existing bone lesions or soft tissue plasmacytomas. * Hypercalcemia attributed to myeloma.
Time frame: From first dose until disease progression, study drug toxicity, end of study, or death due to any cause (up to approximately 120 months).
Progression-free Survival (PFS)
Progression-free survival (PFS) was defined as the time from first dose of study treatment to the first documentation of progressive disease (PD) or death from any cause during study PD: * Increase of 25% or more from nadir in serum M-protein, absolute increase of \>= 0.5 g/dL. * Increase of 25% or more from nadir in 24-hour urinary M-protein, absolute increase of \>=200 mg/24 hours. * Increase of 25% or more in the percentage of bone marrow plasma cells, absolute increase of \>=10%. * New bone lesions or soft tissue plasmacytomas or increase size of existing bone lesions or soft tissue plasmacytomas. * Hypercalcemia attributed to myeloma. Calculated using Kaplan-Meier estimates.
Time frame: From first dose until disease progression, study drug toxicity, end of study, or death due to any cause (up to approximately 120 months).
Overall Response Rate (ORR) Per Central Adjudication Committee
Overall response rate (ORR) per Central Adjudication Committee is the percentage of participants with a best response of stringent complete response (sCR), complete response (CR), very good partial response (VGPR), or partial response (PR). sCR: * No detectable myeloma cells in the bone marrow. * Normal free light chain ratio. * Absence of clonal cells in the bone marrow. CR: * Negative immunofixation on the serum and urine. * Disappearance of any soft tissue plasmacytomas. * Less than 5% plasma cells in the bone marrow. VGPR: * Serum and urine M-protein detectable by immunofixation but not on electrophoresis, or * At least a 90% reduction in serum M-protein plus urine M-protein level less than 100 mg per 24 hours. PR: * At least a 50% reduction in serum M-protein. * Reduction in 24-hour urinary M-protein by at least 90% or to less than 200 mg per 24 hours. * For patients with non-secretory myeloma, a reduction of at least 50% in the size of soft tissue plasmacytomas is required
Time frame: From first dose until disease progression, study drug toxicity, end of study, or death due to any cause (up to approximately 120 months).
Number of Participants With Adverse Events (AEs)
An adverse event (AE) is any noxious, unintended, or untoward medical occurrence that may appear or worsen in a participant during the course of a study. It may be a new intercurrent illness, a worsening concomitant illness, an injury, or any concomitant impairment of the participant's health, including laboratory test values, regardless of etiology. Any worsening (i.e., any clinically significant adverse change in the frequency or intensity of a preexisting condition) should be considered an AE. Graded according to NCI CTCAE (Version 4.03) guidelines where grade 1 = mild, grade 2 = moderate, grade 3 = severe, grade 4 = life threatening, grade 5 = death.
Time frame: From first dose until 30 days after last dose of study drug (assessed for an average of approximately 55 weeks to a maximum of approximately 456 weeks)
Number of Participants With Serious Adverse Events (SAEs)
A serious adverse event (SAE) is defined as any adverse event (AE) occurring at any dose that: * Results in death; * Is life-threatening (ie, in the opinion of the Investigator, the participant is at immediate risk of death from the AE); * Requires inpatient hospitalization or prolongation of existing hospitalization (hospitalization is defined as an inpatient admission, regardless of length of stay). * Results in persistent or significant disability/incapacity (a substantial disruption of the participant's ability to conduct normal life functions); * Is a congenital anomaly/birth defect; * Constitutes an important medical event. Graded according to NCI CTCAE (Version 4) guidelines where grade 1 = mild, grade 2 = moderate, grade 3 = severe, grade 4 = life threatening, grade 5 = death.
Time frame: From first dose until 30 days after last dose of study drug (assessed for an average of approximately 55 weeks to a maximum of approximately 456 weeks)
Number of Participants With Adverse Events (AEs) Leading to Discontinuation
An adverse event (AE) is any noxious, unintended, or untoward medical occurrence that may appear or worsen in a participant during the course of a study. It may be a new intercurrent illness, a worsening concomitant illness, an injury, or any concomitant impairment of the participant's health, including laboratory test values, regardless of etiology. Any worsening (i.e., any clinically significant adverse change in the frequency or intensity of a preexisting condition) should be considered an AE. Graded according to NCI CTCAE (Version 4.03) guidelines where grade 1 = mild, grade 2 = moderate, grade 3 = severe, grade 4 = life threatening, grade 5 = death.
Time frame: From first dose until 30 days after last dose of study drug (assessed for an average of approximately 55 weeks to a maximum of approximately 456 weeks)
Number of Participants With Adverse Events (AEs) Related to Study Drug
An adverse event (AE) is any noxious, unintended, or untoward medical occurrence that may appear or worsen in a participant during the course of a study. It may be a new intercurrent illness, a worsening concomitant illness, an injury, or any concomitant impairment of the participant's health, including laboratory test values, regardless of etiology. Any worsening (i.e., any clinically significant adverse change in the frequency or intensity of a preexisting condition) should be considered an AE. Graded according to NCI CTCAE (Version 4.03) guidelines where grade 1 = mild, grade 2 = moderate, grade 3 = severe, grade 4 = life threatening, grade 5 = death.
Time frame: From first dose until 30 days after last dose of study drug (assessed for an average of approximately 55 weeks to a maximum of approximately 456 weeks)
Plasma Levels of ACY-1215 and Pomalidomide - Phase 1b
Time frame: Cycle 1 day 1, Cycle 1 Day 2, Cycle 1 Day 8
Number of Participants With Anti-Drug Antibodies (ADA) - Phase 1b
Time frame: Cycle 1 day 1, Cycle 1 Day 2, Cycle 1 Day 8