A Study of JNJ-68284528, a Chimeric Antigen Receptor T Cell (CAR-T) Therapy Directed Against B-Cell Maturation Antigen (BCMA) in Participants With Relapsed or Refractory Multiple Myeloma

Multiple Myeloma Clinical Trial

— CARTITUDE-1  

Official title:

A Phase 1b-2, Open-Label Study of JNJ-68284528, A Chimeric Antigen Receptor T-Cell (CAR-T) Therapy Directed Against BCMA in Subjects With Relapsed or Refractory Multiple Myeloma

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03548207
• Other study ID #: CR108480
• Secondary ID: 2018-000121-3268
• Status: Completed
• Phase: Phase 1/Phase 2
• Start date: June 29, 2018
• Est. completion date: August 23, 2022

Study information

• Verified date: March 2024
• Source: Janssen Research & Development, LLC
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of the study is to characterize safety of JNJ-68284528 and establish the recommended Phase 2 dose (RP2D) (Phase 1b) and to evaluate the efficacy of JNJ-68284528 (Phase 2).

Description:

This study will evaluate the safety and efficacy of JNJ-68284528. The study will include two phases. In Phase1b the study will enroll adults with multiple myeloma with interval assessments for potential dose escalation or de-escalation in subsequent participants. The dose selected at the completion of phase 1b will be used in Phase 2. Following consent, enrolled participants will undergo an apheresis procedure to collect cells for manufacture of investigational drug product (JNJ-68284528). Following manufacture of the drug product, participants will undergo lymphodepletion prior to infusion of JNJ-68284528. Participants will be followed for at least 2 years after study drug infusion, with long-term 15 year follow-up on a separate study. The study will evaluate safety, biomarkers, pharmacokinetic/pharmacodynamic evaluations and efficacy.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 126
• Est. completion date: August 23, 2022
• Est. primary completion date: August 23, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Have documented diagnosis of multiple myeloma according to International Myeloma Working Group (IMWG) diagnostic criteria
• Have measurable disease at Screening as defined by any of the following a) Serum monoclonal paraprotein (M-protein) level more than or equal to (>=) 1.0 gram per deciliter(g/dL) or urine M-protein level >=200 milligram per 24 hours (mg/24hr); or b) Light chain multiple myeloma without measurable disease in the serum or the urine: Serum immunoglobulin free light chain 10 mg/dL and abnormal serum immunoglobulin kappa lambda free light chain ratio
• Have received at least 3 prior multiple myeloma treatment lines of therapy or are double refractory to an immunomodulatory drug (IMiD) and proteasome inhibitor (PI) (refractory multiple myeloma as defined by IMWG consensus criteria). Note: induction with or without hematopoietic stem cell transplant and with or without maintenance therapy is considered a single lines of therapy a) Undergone at least 1 complete cycle of treatment for each line of therapy, unless progressive disease (PD) was the best response to the regimen
• Have received as part of previous therapy a PI, an IMiD, and an anti-CD38 antibody
• Participant must have documented evidence of progressive disease based on investigator's determination of response by the IMWG criteria on or within 12 months of their last line of therapy. Confirmation may be from either central or local testing. Also, participants with documented evidence of progressive disease (as above) within the previous 6 months and who are refractory or non-responsive to their most recent line of therapy afterwards are eligible
• Have Eastern Cooperative Oncology Group (ECOG) Performance Status grade of 0 or 1

Exclusion Criteria:

• Have received prior treatment with chimeric antigen receptor T (CAR-T) therapy directed at any target
• Have received any therapy that is targeted to B-cell maturation antigen (BCMA)
• Have following cardiac conditions: a) New York Heart Association (NYHA) stage III or IV congestive heart failure b) Myocardial infarction or coronary artery bypass graft (CABG) less than or equal to (<=) 6 months prior to enrollment c) History of clinically significant ventricular arrhythmia or unexplained syncope, not believed to be vasovagal in nature or due to dehydration d) History of severe non-ischemic cardiomyopathy e) Impaired cardiac function (left ventricular ejection fraction [LVEF] less than [<]45%) as assessed by echocardiogram or multiple-gated acquisition (MUGA) scan (performed less than or equal to (<=) 8 weeks of apheresis)
• Received a cumulative dose of corticosteroids equivalent to >= 70 mg of prednisone within the 7 days prior to apheresis
• Have received either of the following: a) An allogenic stem cell transplant within 6 months before apheresis. Participants who received an allogeneic transplant must be off all immunosuppressive medications for 6 weeks without signs of graft-versus-host disease (GVHD) b) An autologous stem cell transplant less than or equal to (<=) 12 weeks before apheresis
• Have known active, or prior history of central nervous system (CNS) involvement or exhibits clinical signs of meningeal involvement of multiple myeloma

Related Conditions & MeSH terms

• Multiple Myeloma
• Neoplasms, Plasma Cell

Intervention

Biological:
• JNJ-68284528
JNJ-68284528 consist of autologous T lymphocytes transduced with LCAR-B38M, a lentiviral vector to express a chimeric antigen receptor targeting the human B cell maturation antigen (anti-BCMA CAR).

Locations

Country	Name	City	State
Japan	University Hospital Kyoto Perfectural University of Medicine	Kyoto
Japan	Nagoya City University Hospital	Nagoya
Japan	Hokkaido University Hospital	Sapporo-shi
Japan	Japanese Red Cross Medical Center	Shibuya
United States	Beth Israel Deaconess Medical Center	Boston	Massachusetts
United States	Dana-Farber Cancer Institute	Boston	Massachusetts
United States	Massachusetts General Hospital	Boston	Massachusetts
United States	Levine Cancer Institute	Charlotte	North Carolina
United States	University of Chicago	Chicago	Illinois
United States	Barbara Ann Karmanos Cancer Institute	Detroit	Michigan
United States	City of Hope	Duarte	California
United States	Froedtert Memorial	Milwaukee	Wisconsin
United States	Sarah Cannon Research Institute	Nashville	Tennessee
United States	Memorial Sloan Kettering Cancer Center	New York	New York
United States	Mount Sinai Medical Center	New York	New York
United States	University of Nebraska Medical Center	Omaha	Nebraska
United States	University of Pennsylvania	Philadelphia	Pennsylvania
United States	Mayo Clinic Cancer Center-Scottsdale	Phoenix	Arizona
United States	University of Pittsburgh Medical Center	Pittsburgh	Pennsylvania
United States	Mayo Clinic Rochester	Rochester	Minnesota
United States	University of California San Francisco	San Francisco	California

Sponsors (1)

Lead Sponsor	Collaborator
Janssen Research & Development, LLC

Countries where clinical trial is conducted

United States,  Japan, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Phase 1b: Number of Participants With Adverse Events as Per Severity	An AE was any untoward medical occurrence in a clinical study participant administered a pharmaceutical (investigational or non-investigational) product. An AE does not necessarily have a causal relationship with the intervention. Severity was graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) version 5.0. Severity scale ranges from Grade 1 (Mild) to Grade 5 (Death). Grade 1= Mild, Grade 2= Moderate, Grade 3= Severe, Grade 4= Life-threatening and Grade 5= Death related to adverse event.	Day 1 up to 45.2 months
Primary	Phase 2: Overall Response Rate (ORR)	ORR was defined as the percentage of participants who achieved partial response (PR) or better according to international myeloma working group (IMWG) criteria. IMWG criteria for PR: greater than or equal to (>=) 50 percent (%) reduction of serum M-protein and reduction in 24-hour urinary M-protein by >=90% or to less than (<) 200 milligrams (mg) per 24 hours. If the serum and urine M-protein were not measurable, a decrease of >=50% in the difference between involved and uninvolved free light chain (FLC) levels was required in place of the M-protein criteria. If serum and urine M-protein were not measurable, and serum free light assay was also not measurable, >=50% reduction in bone marrow plasma cells (PCs) was required in place of M-protein, provided baseline bone marrow PC percentage was >=30%. In addition to the above criteria, if present at baseline, a >=50% reduction in the size of soft tissue plasmacytomas was also required.	Day 1 up to 45.2 months
Secondary	Phase 2: Number of Participants With Adverse Events (AEs) as Per Severity	An AE was any untoward medical occurrence in a clinical study participant administered a pharmaceutical (investigational or non-investigational) product. An AE does not necessarily have a causal relationship with the intervention. Severity was graded according to the NCI-CTCAE version 5.0. Severity scale ranges from Grade 1 (Mild) to Grade 5 (Death). Grade 1= Mild, Grade 2= Moderate, Grade 3= Severe, Grade 4= Life-threatening and Grade 5= Death related to adverse event.	Day 1 up to 45.2 months
Secondary	Phase 1b and Phase 2: Maximum Observed Plasma Concentration (Cmax) of JNJ-68284528 Transgene	Maximum observed plasma concentration (Cmax) of JNJ-68284528 transgene was reported. Cmax was calculated in copies per microgram (mcg) genomic deoxyribonucleic acid (DNA).	Pre and post dose on Day 1, and Days 2, 3, 7, 10, 14, 21, 28, 42, 56, 78, 100, then every 4 weeks up to 1 year, and at the time of progressive disease or at study completion for participants without progressive disease (up to approximately 2.5 years)
Secondary	Phase 1b and Phase 2: Actual Sampling Time of Last Measurable Analyte Concentration (Tlast) of JNJ-68284528 Transgene	Tlast was defined as actual sampling time of last measurable (non-below quantification limit [BQL]) analyte concentration of JNJ-68284528 transgene.	Pre and post dose on Day 1 and Days 2, 3, 7, 10, 14, 21, 28, 42, 56, 78, 100, then every 4 weeks up to 1 year, and at the time of progressive disease or at study completion for participants without progressive disease (up to approximately 2.5 years)
Secondary	Phase 1b and Phase 2: Area Under the Plasma Concentration Versus Time Curve From Time 0 To Last Measurable Concentration (AUC0-last) of JNJ-68284528 Transgene	Area under the plasma concentration versus time curve from time 0 to last measurable concentration of JNJ-68284528 transgene was reported.	Pre and post dose on Day 1; Days 2, 3, 7, 10, 14, 21, 28, 42, 56, 78, 100, then every 4 weeks up to 1 year, and at the time of progressive disease or at study completion for participants without progressive disease (up to approximately 2.5 years)
Secondary	Phase 1b and Phase 2: Area Under the Plasma Concentration Versus Time Curve From Time 0 to Infinite Time (AUC0-infinity) of JNJ-68284528 Transgene	Area under the plasma concentration versus time curve from time 0 to infinite time of JNJ-68284528 transgene was reported.	Pre and post dose on Day 1 and Days 2, 3, 7, 10, 14, 21, 28, 42, 56, 78, 100, then every 4 weeks up to 1 year, and at the time of progressive disease or at study completion for participants without progressive disease (up to approximately 2.5 years)
Secondary	Phase 1b and Phase 2: Maximum Observed Plasma Concentration (Cmax) of CD3+CAR+ Cells in Blood After a Single Infusion of JNJ-68284528	Maximum observed plasma concentration (Cmax) of CD3+CAR+ Cells was reported. Cmax was calculated in cells per microliter.	Pre and post dose on Day 1 and Days 2, 3, 7, 10, 14, 21, 28, 42, 56, 78, 100, then every 4 weeks up to 1 year, and at the time of progressive disease or at study completion for participants without progressive disease (up to approximately 2.5 years)
Secondary	Phase 1b and Phase 2: T Cell Persistence After a Single Infusion of JNJ-68284528	T Cell persistence after a single infusion of JNJ-68284528 was reported. T Cell persistence was defined as actual sampling time of last measurable (non-below quantification limit [BQL]) analyte concentration.	Pre and post dose on Day 1 and Days 2, 3, 7, 10, 14, 21, 28, 42, 56, 78, 100, then every 4 weeks up to 1 year, and at the time of progressive disease or at study completion for participants without progressive disease (up to approximately 2.5 years)
Secondary	Phase 1b and Phase 2: Area Under the Plasma Concentration Versus Time Curve From Time 0 To Last Measurable Concentration (AUC0-last) of CD3+CAR+ Cells in Blood After a Single Infusion of JNJ-68284528	Area under the plasma concentration versus time curve from time 0 to last measurable concentration of CD3+CAR+ Cells was reported.	Pre and post dose on Day 1 and Days 2, 3, 7, 10, 14, 21, 28, 42, 56, 78, 100, then every 4 weeks up to 1 year, and at the time of progressive disease or at study completion for participants without progressive disease (up to approximately 2.5 years)
Secondary	Phase 1b and Phase 2: Area Under the Plasma Concentration Versus Time Curve From Time 0 to Infinite Time (AUC0-infinity) of CD3+CAR+ Cells in Blood After a Single Infusion of JNJ-68284528	Area under the plasma concentration versus time curve from time 0 to infinite time of CD3+CAR+ Cells in blood after a single infusion of JNJ-68284528 was reported.	Pre and post dose on Day 1 and Days 2, 3, 7, 10, 14, 21, 28, 42, 56, 78, 100, then every 4 weeks up to 1 year, and at the time of progressive disease or at study completion for participants without progressive disease (up to approximately 2.5 years)
Secondary	Phase 1b and Phase 2: Mean Concentration of Soluble B-cell Maturation Antigen (BCMA) Levels in Serum After Single Infusion of JNJ-68284528	Mean concentration of soluble BCMA levels in serum after single infusion of JNJ-68284528 were reported.	Days 352 and 1024
Secondary	Number of Participants With Depletion of BCMA Expressing Cells	Number of participants with depletion of BCMA expressing cells were reported.	Pre dose (Day 1) up to 2 years
Secondary	Phase 1b and Phase 2: Serum Systemic Cytokine Concentrations	Serum systemic cytokine concentrations (Interleukin [IL]-6, IL-10, and Interferon Gamma [IFN-g]) were reported.	Pre-infusion and 2 hours post infusion on Day 1, Days 2, 3, 7, 10, 14, 21, 28, 42, 56, 78, 100
Secondary	Phase 1b and Phase 2: Maximum Observed Plasma Concentration (Cmax) of CAR-T Cells (CD3+CAR+ Cells in Blood) After a Single Infusion of JNJ-68284528	Cmax of CAR-T cells (CD3+CAR+ cells in blood) after a single infusion of JNJ-68284528 was reported.	Pre and post dose on Day 1 and Days 2, 3, 7, 10, 14, 21, 28, 42, 56, 78, 100, then every 4 weeks up to 1 year, and at the time of progressive disease or at study completion for participants without progressive disease (up to approximately 2.5 years)
Secondary	Phase 1b and Phase 2: Maximum T Cell Expansion After a Single Infusion of JNJ-68284528	Maximum T cell expansion was defined as maximum observed plasma concentration (Cmax) after a single Infusion of JNJ-68284528.	Pre and post dose on Day 1 and Days 2, 3, 7, 10, 14, 21, 28, 42, 56, 78, 100, then every 4 weeks up to 1 year, and at the time of progressive disease or at study completion for participants without progressive disease (up to approximately 2.5 years)
Secondary	Phase 1b and Phase 2: Percentage of Participants With Positive Antibodies to JNJ-68284528	Percentage of participants with positive antibodies to JNJ-68284528 were reported.	Pre dose (Day 1) up to 2 years
Secondary	Phase 1b and Phase 2: Very Good Partial Response (VGPR) or Better Response Rate	VGPR or better response rate was defined as the percentage of participants who achieved VGPR or complete response (CR) (including stringent complete response [sCR]) according to the IMWG criteria during or after the study treatment. VGPR: Serum and urine component detectable by immunofixation but not on electrophoresis, or >= 90% reduction in serum M-protein plus urine M-protein level less than (<) 100 mg/24 hour; CR: negative immunofixation on the serum and urine, disappearance of any soft tissue plasmacytomas and <5% PCs in bone marrow; sCR: CR in addition to having a normal free light chain (FLC) ratio and an absence of clonal cells in bone marrow by immunohistochemistry, immunofluorescence, 2-4 color flow cytometry.	Pre dose (Day 1) up to 45.2 months
Secondary	Phase 1b and Phase 2: Minimal Residual Disease (MRD) Negative Rate	MRD negativity rate was defined as percentage of participants who had negative MRD by bone marrow aspirate at any timepoint after initial dose of JNJ-68284528 and before disease progression or starting subsequent therapy or retreatment with JNJ-68284528. MRD negativity rate was assessed by next-generation sequencing at a threshold of <10^5.	Pre dose (Day 1) up to 45.2 months
Secondary	Phase 1b and Phase 2: Clinical Benefit Rate (CBR)	Clinical benefit rate was defined as the percentage of participants with best response of minimal response (MR) or better (including sCR, CR, VGPR, PR, and MR). MR was defined as >=25% but less than or equal to (<=) 49% reduction of serum M-protein and reduction in 24-hour urine M-protein by 50% to 89%. In addition to the above criteria, if present at baseline, >=50% reduction in the size of soft tissue plasmacytomas was also required.	Pre dose (Day 1) up to 45.2 months
Secondary	Phase 1b and Phase 2: Duration of Response (DOR)	DOR was defined as the time (in months) from the date of initial documented response (PR or better response) to the date of first documented evidence of progressive disease (PD) or death. PD is defined as an increase of 25% from the lowest response value in one of the following: serum and urine M-component (absolute increase must be >=0.5 gram per deciliter [g/dL] and >=200 mg/24 hours respectively); only in participants without measurable serum and urine M-protein levels the difference between involved and uninvolved FLC levels (absolute increase must be >10 mg/dL); definite development of new bone lesions or soft tissue plasmacytomas or definite increase in the size of existing bone lesions or soft tissue plasmacytomas; development of hypercalcemia (corrected serum calcium >11.5 mg/dL) that can be attributed solely to PC proliferative disorder, appearance of a new lesion(s), >=50% increase in circulating plasma cells if this was the only measure of disease.	Pre dose (Day 1) up to first documented PD or death (up to 45.2 months)
Secondary	Phase 1b and Phase 2: Time to First Response	Time to first response was defined as the time between date of the initial infusion of JNJ-68284528 and the first efficacy evaluation that the participant met all criteria for PR or better. IMWG criteria for PR: >=50% reduction of serum M-protein and reduction in 24-hour urinary M-protein by >=90% or <200 mg per 24 hours, If the serum and urine M-protein are not measurable, a decrease of >=50% in the difference between involved and uninvolved FLC levels is required in place of the M-protein criteria, If serum and urine M-protein are not measurable, and serum free light assay is also not measurable, >=50% reduction in bone marrow PCs is required in place of M-protein, provided baseline bone marrow plasma cell percentage was >=30%. In addition to the above criteria, if present at baseline, a >=50% reduction in the size of soft tissue plasmacytomas is also required.	Pre dose (Day 1) up to 45.2 months
Secondary	Phase 1b and Phase 2: Progression-free Survival (PFS)	Progression-free survival was defined as the time from the date of the initial infusion of JNJ-68284528 to the date of first documented disease progression.	Pre dose (Day 1) up to 45.2 months
Secondary	Phase 1b and Phase 2: Overall Survival	Overall survival was defined as the time from the date of the initial infusion of JNJ-68284528 to the date of the participant's death.	Pre dose (Day 1) up to 45.2 months
Secondary	Phase 2 (US Population): Change From Baseline in EuroQol Five Dimension Questionnaire (EQ-5D-5L) Utility Score at Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296, 324, 352 and 380	EQ-5D-5L was a 5-item questionnaire consisted of 2 components: a health state profile/a single utility index value and an optional VAS. EQ-5D health state profile/a single utility index value had 5 dimensions including mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension had 5 response levels: 1 =no problems, 2 =slight problems, 3 =moderate problems, 4 =severe problems and 5 =extreme problems. The scores for the 5 dimensions were used to compute a single utility score ranging from 0 to 1 representing the general health status of the individual. Higher score indicated better health status. EQ-5D VAS was used to record participant's rating for his/her "health today" and ranging from 0 to 100, where 0 = worst imaginable health state and 100 = best imaginable health state.	Baseline, Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296, 324, 352 and 380
Secondary	Phase 2 (Japan Population): Change From Baseline in EuroQol Five Dimension Questionnaire (EQ-5D-5L) Utility Score at Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296 and 324	EQ-5D-5L was a 5-item questionnaire consisted of 2 components: a health state profile/a single utility index value and an optional VAS. EQ-5D health state profile/a single utility index value had 5 dimensions including mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension had 5 response levels: 1 =no problems, 2 =slight problems, 3 =moderate problems, 4 =severe problems and 5 =extreme problems. The scores for the 5 dimensions were used to compute a single utility score ranging from 0 to 1 representing the general health status of the individual. Higher score indicated better health status. EQ-5D VAS was used to record participant's rating for his/her "health today" and ranging from 0 to 100, where 0 = worst imaginable health state and 100 = best imaginable health state.	Baseline, Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296 and 324
Secondary	Phase 2 (US Population): Change From Baseline in EuroQol Five Dimension Questionnaire (EQ-5D-5L) Visual Analogue Scale (VAS) Score at Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296, 324, 352 and 380	EQ-5D-5L was a 5-item questionnaire consisted of 2 components: a health state profile/a single utility index value and an optional VAS. EQ-5D health state profile/a single utility index value had 5 dimensions including mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension had 5 response levels: 1 =no problems, 2 =slight problems, 3 =moderate problems, 4 =severe problems and 5 =extreme problems. The scores for the 5 dimensions were used to compute a single utility score ranging from 0 to 1 representing the general health status of the individual. Higher score indicated better health status. EQ-5D VAS was used to record participant's rating for his/her "health today" and ranging from 0 to 100, where 0 =worst imaginable health state and 100 = best imaginable health state.	Baseline, Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296, 324, 352 and 380
Secondary	Phase 2 (Japan Population): Change From Baseline in EuroQol Five Dimension Questionnaire (EQ-5D-5L) Visual Analogue Scale (VAS) Score at Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296 and 324	EQ-5D-5L was a 5-item questionnaire consisted of 2 components: a health state profile/a single utility index value and an optional VAS. EQ-5D health state profile/a single utility index value had 5 dimensions including mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension had 5 response levels: 1 =no problems, 2 =slight problems, 3 =moderate problems, 4 =severe problems and 5 =extreme problems. The scores for the 5 dimensions were used to compute a single utility score ranging from 0 to 1 representing the general health status of the individual. Higher score indicated better health status. EQ-5D VAS was used to record participant's rating for his/her "health today" and ranging from 0 to 100, where 0 = worst imaginable health state and 100 = best imaginable health state.	Baseline, Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296 and 324
Secondary	Phase 2 (US Population): Change From Baseline in European Organization for Research and Treatment of Cancer (EORTC) QLQ-C30 Subscales at Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296, 324, 352 and 380	EORTC QLQ-C30 was a 30 items self-reporting questionnaire, with 1 week recall period, resulting in 5 functional scales (physical functioning, role functioning, emotional functioning, cognitive functioning, and social functioning), 1 Global Health Status scale (GHS), 3 symptom scales (fatigue, nausea and vomiting, and pain) and 6 single symptom items (dyspnea, insomnia, appetite loss, constipation, diarrhea, and financial difficulties). Questionnaire includes 28 items with 4-point Likert type responses from "1-not at all" to "4-very much" to assess functioning and symptoms;2 items with 7-point Likert scales (1= poor and 7= excellent) for global health and overall health related QoL. Scores are transformed to 0 to 100 scale, with higher scores representing better GHS, better functioning, and more symptoms. Negative change from baseline values shows deterioration in quality of life or functioning and reduction in symptom and positive values indicate improvement and worsening of symptoms.	Baseline, Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296, 324, 352 and 380
Secondary	Phase 2 (Japan Population): Change From Baseline in European Organization for Research and Treatment of Cancer (EORTC) QLQ-C30 Subscales at Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296 and 324	EORTC QLQ-C30 was a 30 items self-reporting questionnaire, with 1 week recall period, resulting in 5 functional scales (physical functioning, role functioning, emotional functioning, cognitive functioning, and social functioning), 1 Global Health Status scale (GHS), 3 symptom scales (fatigue, nausea and vomiting, and pain) and 6 single symptom items (dyspnea, insomnia, appetite loss, constipation, diarrhea, and financial difficulties). Questionnaire includes 28 items with 4-point Likert type responses from "1-not at all" to "4-very much" to assess functioning and symptoms;2 items with 7-point Likert scales (1= poor and 7= excellent) for global health and overall health related QoL. Scores are transformed to 0 to 100 scale, with higher scores representing better GHS, better functioning, and more symptoms. Negative change from baseline values shows deterioration in quality of life or functioning and reduction in symptom and positive values indicate improvement and worsening of symptoms.	Baseline, Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296 and 324
Secondary	Phase 2: Change From Baseline in Patient Global Impression of Severity (PGIS) Score at Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296, 324, 352, 380	PGIS was a single item to assess severity of pain on a 5-point verbal rating scale ranged from 1 (no pain) to 5 (very severe pain), where 1: none; 2: mild; 3: moderate; 4: severe; 5: very severe. A higher score indicated a more severe pain.	Baseline, Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296, 324, 352, 380
Secondary	Phase 2: Patient Global Impression of Change (PGIC) Score at Days 28, 56, 78, 100	PGIC was a single item to assess the participant's perception in change of their overall health status using a 7-point verbal rating scale ranging from 1(a lot better now) to 7 (a lot verse now), where 1: a lot better now; 2: moderately better now; 3: a little better now; 4: neither better nor worse; 5: a little worse now; 6: moderately worse now; 7: a lot worse now. Higher score indicated worse health status.	Days 28, 56, 78, 100
Secondary	Phase 2 (US Population): Change From Baseline in EORTC QLQ-MY20 at Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296, 324, 352 and 380	EORTC QLQ-MY20 scale comprised of 20 questions that addressed four myeloma-specific HRQoL domains: disease symptoms (includes bone aches or pain, back pain, hip pain, arm or shoulder pain, chest pain, and pain increasing with activity), side effects of treatment (includes drowsiness, thirst, feeling ill, dry mouth, hair loss, upset by hair loss, tingling hands or feet, restlessness/agitation, acid indigestion/heartburn, and burning or sore eyes), future perspective (includes worry about death and health in the future, and thinking about illness) and body image. The scale was administered to assess 4 single items: feel restless or agitated, thinking about your illness, worried about dying, worried about health in the future. Scores were averaged and scales were transformed on a 0 to 100 scale. A high score for side effects of treatment represented a high level of symptomatology or problems, whereas a high score for future perspective represented better outcomes.	Baseline, Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296, 324, 352 and 380
Secondary	Phase 2 (Japan Population): Change From Baseline in EORTC QLQ-MY20 at Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296 and 324	EORTC QLQ-MY20 scale comprised of 20 questions that addressed four myeloma-specific HRQoL domains: disease symptoms (includes bone aches or pain, back pain, hip pain, arm or shoulder pain, chest pain, and pain increasing with activity), side effects of treatment (includes drowsiness, thirst, feeling ill, dry mouth, hair loss, upset by hair loss, tingling hands or feet, restlessness/agitation, acid indigestion/heartburn, and burning or sore eyes), future perspective (includes worry about death and health in the future, and thinking about illness) and body image. The scale was administered to assess 4 single items: feel restless or agitated, thinking about your illness, worried about dying, worried about health in the future. Scores were averaged and scales were transformed on a 0 to 100 scale. A high score for side effects of treatment represented a high level of symptomatology or problems, whereas a high score for future perspective represented better outcomes.	Baseline, Days 7, 28, 56, 78, 100, 128, 156, 184, 212, 240, 268, 296 and 324