This study was a multi-center, open-label, single-arm, Phase 2 study where newly diagnosed Multiple Myeloma requiring systemic chemotherapy will be eligible for enrollment. A total of 46 subjects were enrolled. The primary end point was the rate of stringent complete response (sCR) and/or MRD-negativity (10-5) after C8 Elo-KRd. Secondary end points included safety, rate of response, MRD status, PFS, and overall survival (OS).
Primary Objective • The primary efficacy endpoint will be the rate of sCR and/or the rate of negative MRD by next generation gene sequencing (NGS) by clonoSIGHT (Adaptive Biotechnologies) at the end of 8 cycles among non-transplant candidates and transplant candidates who agreed to defer transplant Secondary Objectives * To evaluate the safety and tolerability of elotuzumab in combination with KRd, when administered to subjects with newly diagnosed multiple myeloma. * To determine the rate of MRD by next generation gene sequencing (NGS) by clonoSIGHT (Adaptive Biotechnologies) and by multi-color flow cytometry (MFC) at the end of Cycle 4, 8,and 12 for all subjects, and end of C18 (for subjects who are MRD+ at the end of C8 but MRD- at the end of C12 only), 24 months after C1D1, and yearly after that. * To estimate time to event, including duration of response (DOR), progression-free survival (PFS), time to progression (TTP), and overall survival (OS). Exploratory Objectives * GEP, proteomics, and gene sequencing to evaluate the correlation between treatment outcome and pre-treatment subject profile. * Immunologic correlative studies including FcγRIIIa V genotype.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
46
Elotuzumab will be given on Cycles 1-2 on days 1, 8, 15, 22, Cycles 3 and Beyond on days 1 and 15
Carfilzomib will be given on Day 1 and 8 of Cycle 1, Days 1, 8, and 15 of Cycles 2-8, and Days 1 and 15 of Cycles 9 and beyond
Lenalidomide will be given on days 1-21 for all cycles.
University of Chicago
Chicago, Illinois, United States
NorthShore University Health System
Evanston, Illinois, United States
University of Michigan Comprehensive Cancer Center
Ann Arbor, Michigan, United States
Number of Participants With Stringent Complete Response (sCR)
Response will be determined according to the International Myeloma Working Group (IMWG) response criteria for multiple myeloma. sCR is defined as CR plus : * normal FLC ratio and * absence of clonal cells in bone marrow by immunohistochemistry or 2 - 4 color flow cytometry CR is defined as below : * Negative immunofixation on the serum and urine and * disappearance of any soft tissue plasmacytomas and * \< 5% plasma cells in bone marrow. * In subjects with only FLC disease, a normal FLC ratio of 0.26-1.65 is required.
Time frame: Landmark evaluations were performed after cycles 4, 8, 12, 18 and 24 (that is, 4, 8, 12, 18 and 24 months)
Number of Participants With MRD-negativity (10^-5) After C8 Elo-KRd
Subjects will be tested for Minimal Residual Disease (MRD) by Next Generation Sequencing (NGS) and flow cytometry after cycle 8. The flow cytometry analysis procedure used to determine MRD is performed on a NAVIOS FLOW CYTOMETER SYSTEM manufactured by BECKMAN COULTER, INC., using a laboratory developed assay. The Premarket Notification 510(k) (Number K130373) for the device can be found using the following link. https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm?ID=K130373.
Time frame: Landmark evaluations were performed after cycle 8
The Number of Participants With Stringent Complete Response (sCR) and/or MRD Negative (10^-5) by NGS
Response will be determined according to the International Myeloma Working Group (IMWG) response criteria for multiple myeloma. sCR is defined as CR plus : * normal FLC ratio and * absence of clonal cells in bone marrow by immunohistochemistry or 2 - 4 color flow cytometry CR is defined as below : * Negative immunofixation on the serum and urine and * disappearance of any soft tissue plasmacytomas and * \< 5% plasma cells in bone marrow. * In subjects with only FLC disease, a normal FLC ratio of 0.26-1.65 is required. Subjects will be tested for Minimal Residual Disease (MRD) by Next Generation Sequencing (NGS) and flow cytometry after cycles 4,8,12,18 and 24. The flow cytometry analysis procedure used to determine MRD is performed on a NAVIOS FLOW CYTOMETER SYSTEM manufactured by BECKMAN COULTER, INC., using a laboratory developed assay.
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Dexamethasone will be given as follows: Cycle 1 and 2: Days 1, 2, 8, 9, 15, 16, and 22 Cycles 3 and Beyond: Days 1, 8, 15, and 22
Time frame: Landmark evaluations were performed after cycles 4, 8, 12, 18 and 24 (that is, 4, 8, 12, 18 and 24 months)
Number of Participants With Adverse Events of Elotuzumab in Combination With KRd
AEs were graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (version 4.0)
Time frame: AEs were recorded from the day of signed consent through 30 days after the last does of Elo-KRd or initiation of new therapy, an average of 2 years.
Duration of Response
These events will be analyzed at differing points of time based on the individual subjects disease progression. It will be measured by the number of cycles of therapy.
Time frame: Up to two years
Median Progression Free Survival
Progression free survival (PFS) was assessed based on time to disease progression or death (whichever occurred first) from the start of treatment.
Time frame: up to two years
Median Overall Survival
Overall survival (OS) was assessed based on time to disease progression or death (whichever occurred first) from the start of treatment.
Time frame: up to two years