A Study to Evaluate the Efficacy and Safety of Ixazomib in Combination With Lenalidomide and Dexamethasone in Patients With Relapsed and/or Refractory Multiple Myeloma Initially Treated With an Injection of Proteasome Inhibitor-Based Therapy
CompletedPhase 4Results postedLast updated 27 September 2022
What this trial tests
Phase 4 trial testing Ixazomib in Relapsed and/or Refractory Multiple Myeloma in 45 participants. Completed in 28 May 2021.
20 and older, any sex, with Relapsed and/or Refractory Multiple Myeloma. Patients with the condition only — healthy volunteers not accepted.
Results — posted to ClinicalTrials.gov
Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.
Progression-Free Survival (PFS) Rate at 12 Months From the Start of Study TreatmentPrimary· Up to 12 months
PFS rate was defined as the percentage of participants who were alive and have not had disease progression at 12 months after the date of first dose of treatment in Treatment Period I. PFS was assessed by International Myeloma Working Group (IMWG) Criteria (2014 version). Per IMWG criteria, progressive disease (PD): serum M-component increase ≥0.5 g/dl or urine M-component increase ≥200 mg/24-hour/ difference between involved and uninvolved free light chain (FLC) levels increase \>10 mg/dl or bone marrow plasma cell ≥10%/ development of new/ increase in size of existing bone lesions or soft ti
Overall Survival (OS) From the Start of Study TreatmentSecondary· Up to 39 months as a maximum
OS was defined as the period from the first dose of treatment in Treatment Period I to the time when death (regardless of the cause of death) was confirmed. Participants who were still alive were censored at the last confirmed date of survival or the date of data cut-off, whichever was earlier.
PFS From the Start of Study TreatmentSecondary· Up to 39 months as a maximum
PFS was defined as the period from the first dose of treatment in Treatment Period I to the time of confirmed PD or confirmed death (regardless of the cause of death), whichever is earlier. PFS was assessed by IMWG Criteria.
Percentage of Participants Who Achieved VGPR or Better (CR + VGPR)Secondary· Up to 39 months as a maximum
VGPR or better (CR + VGPR) were assessed by IMWG Criteria. Per IMWG criteria, PR (partial response): ≥50% reduction of serum M protein+reduction in 24-hour urinary M protein by ≥90%/ to \<200 mg/24-hour or ≥50% decrease in difference between involved and uninvolved free light chain (FLC) levels/ ≥50% reduction in bone marrow plasma cells, if ≥30% at baseline/ ≥50% reduction in size of soft tissue plasmacytomas. VGPR (very good PR): serum+urine M-protein detectable by immunofixation but not on electrophoresis/ ≥90% reduction in serum M-protein+urine Mprotein level \<100 mg/24-hour. CR (complete
Number of Participants With Minimal Residual Disease (MRD) Positive or Negative in Bone Marrow in Participants Who Achieved CRSecondary· Up to 39 months as a maximum
MRD was measured by the flow cytometry method using bone marrow aspiration. Reported data were numbers of participants with MRD positive and negative in bone marrow in participants who achieved CR. MRD positive was categorized into three sensitivity levels with the numbers of cells counted (10\^-4 to - Max; 10\^-5 to 10\^-4; 10\^-6 to 10\^-5). MRD negativity is defined as absence of MRD and MRD positivity is defined as presence of MRD. If a participant is MRD-positive at their first evaluation and MRD-negative after re-examination, the participant will be considered to be MRD-negative. CR will
Percentage of Participants Who Achieve or Maintain Any Best ResponseSecondary· Up to 39 months as a maximum
Best response is defined as the cumulative numbers of participants who achieve each level of best response including PR, VGPR and CR assessed with IMWG Criteria, after each cycle of treatment. Per IMWG criteria, PR (partial response): ≥50% reduction of serum M protein+reduction in 24-hour urinary M protein by ≥90%/ to \<200 mg/24-hour or ≥50% decrease in difference between involved and uninvolved free light chain (FLC) levels/ ≥50% reduction in bone marrow plasma cells, if ≥30% at baseline/ ≥50% reduction in size of soft tissue plasmacytomas. VGPR (very good PR): serum+urine M-protein detectab
Overall Response Rate (ORR)Secondary· Up to 39 months as a maximum
ORR is defined as the percentage of participants who achieve a best response of PR or better including stringent complete response (sCR), VGPR and PR assessed with IMWG Criteria, after the start of the study treatment. Per IMWG criteria, PR (partial response): ≥50% reduction of serum M protein+reduction in 24-hour urinary M protein by ≥90%/ to \<200 mg/24-hour or ≥50% decrease in difference between involved and uninvolved free light chain (FLC) levels/ ≥50% reduction in bone marrow plasma cells, if ≥30% at baseline/ ≥50% reduction in size of soft tissue plasmacytomas. VGPR (very good PR): seru
Duration of Response (DOR)Secondary· Up to 39 months as a maximum
DOR is defined as the time from the date of first documentation of response ≥PR to the date of first documentation of PD or death due to any cause. PR and PD will be assessed with IMWG Criteria. Per IMWG criteria, PR (partial response): ≥50% reduction of serum M protein+reduction in 24-hour urinary M protein by ≥90%/ to \<200 mg/24-hour or ≥50% decrease in difference between involved and uninvolved free light chain (FLC) levels/ ≥50% reduction in bone marrow plasma cells, if ≥30% at baseline/ ≥50% reduction in size of soft tissue plasmacytomas. VGPR (very good PR): serum+urine M-protein detect
Patient-Reported Outcome Health-Related Quality of Life (HRQoL) Based on Global Health Status Scale of European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-C30 (EORTC QLQ-C30)Secondary· Baseline and End of Treatment (Up to 23 cycles for VRd Group, Up to 32 cycles for KRd and Overall Group, each cycle was of 28 days)
EORTC QLQ-C30 contains 30 items across 5 functional scales (physical, role, cognitive, emotional, and social), 9 symptom scales (fatigue, nausea and vomiting, pain, dyspnea, sleep disturbance, appetite loss, constipation, diarrhea, and financial difficulties) and a global health status/QOL scale (Global Health Status). EORTC QLQ-C30 contains 28 questions (4-point scale where 1=Not at all \[best\] to 4=Very Much \[worst\]) and 2 questions (7-point scale where 1=Very poor \[worst\] to 7= Excellent \[best\]). Raw scores are converted into scale scores ranging from 0 to 100. For the functional sca
Time frame: Up to 39 months as a maximum.
Reporting threshold: 5%.
Adverse-event reports describe events observed during the trial — not all are caused by the drug.
The purpose of this study is to investigate the efficacy and safety of long-term administration of the oral proteasome inhibitor ixazomib as part of ixazomib in combination with lenalidomide and dexamethasone (IRd) therapy in patients with relapsed and/or refractory multiple myeloma (RRMM) treated initially with an injectable proteasome inhibitor-based therapy.
Publications & conference data
4 peer-reviewed publications reference this trial (live from Europe PMC):
NCT05722405 — Ixazomib Plus Low-dose Lenalidomide Versus Ixazomib Alone for Maintenance Treatment of High Risk Multiple Myeloma
· Phase 4
· recruiting
NCT05183139 — A Multicenter In-class Transition Study of Ixazomib Combined With Pomalidomide and Dexamethasone or With Lenalidomide an
· Phase 4
· withdrawn
NCT04998786 — A Multi-center Open-label Phase 2 Study of Ixazomib, Iberdomide and Dexamethasone in Elderly Patients With Multiple Myel
· Phase 2
· active not recruiting
NCT04837131 — A Study to Evaluate the Safety and Tolerability of Oral Ixazomib in Scleroderma-related Lung Disease Patients
· Phase 2
· terminated
NCT03888534 — Intravenous Ixazomib in Pediatric Participants With Relapsed or Refractory Acute Lymphoblastic Leukemia (ALL) or Lymphob
· Phase 1
· withdrawn
Other recruiting trials for Relapsed and/or Refractory Multiple Myeloma
Currently open trials in the same condition.
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NCT06182696 — OriCAR-017 Chimeric Antigen Receptor (CAR) Modified T Cells for the Treatment of R/RMM
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NCT03715478 — Multi-Center Study of GSK2857916 in Combination With Pomalidomide and Dex
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Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
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Sponsor: as reported to ClinicalTrials.gov by Takeda
Last refreshed: 27 September 2022
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT03416374.