An Open-Label, Dose-Escalation, Phase 1/2 Study of the Oral Form of Ixazomib (MLN9708), a Second-Generation Proteasome Inhibitor, Administered in Combination With Lenalidomide and Low-Dose Dexamethasone in Patients With Newly Diagnosed Multiple Myeloma Requiring Systemic Treatment
Overview
- Phase
- Phase 1
- Intervention
- Ixazomib
- Conditions
- Multiple Myeloma
- Sponsor
- Millennium Pharmaceuticals, Inc.
- Enrollment
- 65
- Locations
- 16
- Primary Endpoint
- Phase 1: Maximum Tolerated Dose (MTD) of Ixazomib Administered Weekly in Combination With Lenalidomide and Low-Dose Dexamethasone
- Status
- Completed
- Last Updated
- 8 years ago
Overview
Brief Summary
The purpose of Phase 1 of this study was to determine the safety, tolerability, maximum tolerated dose (MTD), and recommended Phase 2 dose (RP2D) of oral ixazomib administered in combination with lenalidomide and low-dose dexamethasone in participants with newly diagnosed multiple myeloma (NDMM). The purpose of Phase 2 of this study was to determine the overall response rate (ORR) and further evaluate the tolerability and toxicity of the combination of oral ixazomib, lenalidomide, and low-dose dexamethasone in patients with NDMM.
Detailed Description
The drug being tested in this study is called ixazomib. Ixazomib was being tested to treat people who had newly diagnosed multiple myeloma who had not previously received systemic treatment. This study was conducted in two Phases. Phase 1 looked at side effects and lab results in people who took ixazomib to determine the MTD and RP2D. Phase 2 looked at overall response rates and side effects in people who took ixazomib. The study enrolled 15 patients in Phase 1 and 50 patients in Phase 2. Participants in Phase 1 were assigned to cohorts and received ixazomib 1.68, 2.23, 2.97, or 3.95 mg/m\^2 in addition to dexamethasone 40 mg and lenalidomide 25 mg. Participants in Phase 2 received ixazomib 4.0 mg fixed dose in addition to dexamethasone 40 mg and lenalidomide 25 mg. In both Phases study treatment was administered in 28-day Cycles as follows: ixazomib Days 1, 8 and 15, dexamethasone Days 1, 8, 15 and 22, and lenalidomide 25 mg Days 1 through 21. This multi-center trial was conducted in the United States. The overall time to participate in this study was 12, 28-day cycles with the option to continue into a maintenance portion in the absence of disease progression or unacceptable toxicity. Participants made multiple visits to the clinic and a final visit 30 days after last dose of study drug for a follow-up assessment.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Each patient must meet all of the following eligibility criteria to be enrolled in the study:
- •Male or female patients 18 years or older
- •Previously untreated multiple myeloma diagnosed according to standard criteria requiring systemic treatment
- •Patients must have measurable disease
- •Nonsecretory multiple myeloma based upon standard M-component criteria (i.e., measurable serum/urine M-component) is not allowed unless the baseline serum free light chain level (Freelite™) is evaluated Patients must meet clinical laboratory criteria as specified in study protocol
- •Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2
- •Female and male patients MUST adhere to the guidelines of the lenalidomide pregnancy prevention program
- •Must be able to take concurrent aspirin 325 mg daily
- •Voluntary written consent
- •Exclusion Criteria
Exclusion Criteria
- Not provided
Arms & Interventions
Phase 1: Ixazomib 1.68 mg/m^2 + Lenalidomide + Dexamethasone
In phase 1, ixazomib 1.68 mg/m\^2, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 1.68 mg/m\^2, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Ixazomib
Phase 1: Ixazomib 1.68 mg/m^2 + Lenalidomide + Dexamethasone
In phase 1, ixazomib 1.68 mg/m\^2, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 1.68 mg/m\^2, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Lenalidomide
Phase 1: Ixazomib 1.68 mg/m^2 + Lenalidomide + Dexamethasone
In phase 1, ixazomib 1.68 mg/m\^2, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 1.68 mg/m\^2, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Dexamethasone
Phase 1: Ixazomib 2.23 mg/m^2 + Lenalidomide + Dexamethasone
In phase 1, ixazomib 2.23 mg/m\^2, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 2.23 mg/m\^2, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Ixazomib
Phase 1: Ixazomib 2.23 mg/m^2 + Lenalidomide + Dexamethasone
In phase 1, ixazomib 2.23 mg/m\^2, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 2.23 mg/m\^2, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Lenalidomide
Phase 1: Ixazomib 2.23 mg/m^2 + Lenalidomide + Dexamethasone
In phase 1, ixazomib 2.23 mg/m\^2, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 2.23 mg/m\^2, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Dexamethasone
Phase 1: Ixazomib 2.97 mg/m^2 + Lenalidomide + Dexamethasone
In phase 1, ixazomib 2.97 mg/m\^2, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 2.97 mg/m\^2, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Ixazomib
Phase 1: Ixazomib 2.97 mg/m^2 + Lenalidomide + Dexamethasone
In phase 1, ixazomib 2.97 mg/m\^2, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 2.97 mg/m\^2, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Lenalidomide
Phase 1: Ixazomib 2.97 mg/m^2 + Lenalidomide + Dexamethasone
In phase 1, ixazomib 2.97 mg/m\^2, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 2.97 mg/m\^2, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Dexamethasone
Phase 1: Ixazomib 3.95 mg/m^2 + Lenalidomide + Dexamethasone
In phase 1, ixazomib 3.95 mg/m\^2, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 3.95 mg/m\^2, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Ixazomib
Phase 1: Ixazomib 3.95 mg/m^2 + Lenalidomide + Dexamethasone
In phase 1, ixazomib 3.95 mg/m\^2, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 3.95 mg/m\^2, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Lenalidomide
Phase 1: Ixazomib 3.95 mg/m^2 + Lenalidomide + Dexamethasone
In phase 1, ixazomib 3.95 mg/m\^2, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 3.95 mg/m\^2, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Dexamethasone
Phase 2: Ixazomib 4.0 mg + Lenalidomide + Dexamethasone
In phase 2, ixazomib 4.0 mg fixed dose, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 4.0 mg fixed dose, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Ixazomib
Phase 2: Ixazomib 4.0 mg + Lenalidomide + Dexamethasone
In phase 2, ixazomib 4.0 mg fixed dose, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 4.0 mg fixed dose, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Lenalidomide
Phase 2: Ixazomib 4.0 mg + Lenalidomide + Dexamethasone
In phase 2, ixazomib 4.0 mg fixed dose, capsules, orally, once, on Days 1, 8 and 15; plus dexamethasone 40 mg, tablets, orally, once on Days 1, 8, 15 and 22; and lenalidomide 25 mg, capsules, orally, once on Days 1 through 21 of a 28-day cycle for up to 12 cycles. Cycle 13 and beyond, single agent ixazomib 4.0 mg fixed dose, capsules, orally, once on Days 1, 8 and 15 of a 28-day cycle until disease progression or unacceptable toxicity.
Intervention: Dexamethasone
Outcomes
Primary Outcomes
Phase 1: Maximum Tolerated Dose (MTD) of Ixazomib Administered Weekly in Combination With Lenalidomide and Low-Dose Dexamethasone
Time Frame: Until occurrence of progressive disease or unacceptable toxicity (Up to 336 days)
MTD of ixazomib will be determined by assessing adverse events and serious adverse events, clinical laboratory values, neurotoxicity grading, and vital sign measurements.
Phase 2: Objective Response Rate (ORR) Following Treatment With the Combination Of Oral Ixazomib, Lenalidomide And Low-Dose Dexamethasone
Time Frame: Until occurrence of progressive disease or unacceptable toxicity (Up to 787 days)
ORR was defined as the percentage of participants with Complete (CR) + Very Good Partial Response (VGPR) assessed by the investigatory using International Myeloma Working Group (IMWG) Criteria. CR=Negative immunofixation on the serum and urine and; disappearance of any soft tissue plasmacytomas and; \< 5% plasma cells in bone marrow. VGPR=Serum and urine M-protein detectable by immunofixation but not on electrophoresis or; 90% or greater reduction in serum M-protein plus urine M-protein level \< 100 mg per 24 hours.
Phase 1: Recommended Phase 2 Dose of Ixazomib Given in Combination With Lenalidomide and Low-Dose Dexamethasone
Time Frame: Until occurrence of progressive disease or unacceptable toxicity (Up to 336 days)
RP2D will be determined based on number and type of adverse event and serious adverse events, assessments of clinical laboratory values, neurotoxicity grading, and treatment discontinuation.
Phase 1: Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs) as a Measure of Safety and Tolerability
Time Frame: Until occurrence of progressive disease or unacceptable toxicity (Up to 336 days)
An Adverse Event (AE) is defined as any untoward medical occurrence in a clinical investigation participant administered a drug; it does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (example, a clinically significant abnormal laboratory finding), symptom, or disease temporally associated with the use of a drug, whether or not it is considered related to the drug. A serious adverse event (SAE) is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; or congenital anomaly; or a medically important event.
Phase 2: Percentage of Participants With Grade 3 or Higher AEs, SAEs and Treatment Discontinuation
Time Frame: Until occurrence of progressive disease or unacceptable toxicity (Up to 787 days)
An Adverse Event (AE) is defined as any untoward medical occurrence in a clinical investigation participant administered a drug; it does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (example, a clinically significant abnormal laboratory finding), symptom, or disease temporally associated with the use of a drug, whether or not it is considered related to the drug. A serious adverse event (SAE) is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; or congenital anomaly; or a medically important event.
Secondary Outcomes
- Phase 1: Rac: Accumulation Ratio of Ixazomib(Cycle 1, Day 15)
- Phase 2: Overall Survival (OS)(From the first dose of study treatment to the date of death (up to 787 days))
- Phase 2: Overall Response Rate (ORR)(Up to 787 days)
- Phase 2: Percentage of Participants With Complete Response (CR), Stringent Complete Response (sCR), Very Good Partial Response (VGPR), Near Complete Response (nCR), Partial Response (PR) and Minimal Response (MR)(Cycles 3, 6, 9 and 12 (Up to 787 days))
- Phase 2: Time to Best Response(Up to 787 days)
- Phase 2: Duration of Response (DOR)(Up to 787 days)
- Phase 1: Emax: Maximum Observed Inhibition of Whole Blood 20S Proteasome(Day 1 predose and at multiple time points (up to 168 hours) postdose and Day 15 predose and at multiple time points (up to 336 hours) postdose)
- Phase 1: TEmax: Time to the Maximum Observed Inhibition of Whole Blood 20S Proteasome(Day 1 predose and at multiple time points (up to 168 hours) postdose and Day 15 predose and at multiple time points (up to 336 hours) postdose)
- Phase 1: Cmax: Maximum Observed Plasma Concentration for Ixazomib(Cycle 1, Days 1 and 15)
- Phase 1: Tmax: Time to Reach the Maximum Observed Plasma Concentration (Cmax) for Ixazomib(Cycle 1, Days 1 and 15)
- Phase 1: AUC(0-168): Area Under the Plasma Concentration-Time Curve From Time 0 to 168 Hours Postdose for Ixazomib(Cycle 1, Days 1 and 15)
- Phase 2: Time to Progression (TTP)(From the first dose of study treatment to the date of first documented progressive disease (Up to 787 days))
- Phase 2: Percentage of Participants With Complete Response (CR) and Very Good Partial Response (VGPR)(After Cycles 3, 6 and 9 (Up to 787 days))
- Phase 2: Progression Free Survival (PFS)(Up to 787 days)
- Phase 2: 1 Year Survival Rate(1 year after first dose of study drug)