Skip to content
Triangle logo TriangleGet started
← Full study record

NCT04430894 · OUTCOME

Complete Response Rate in Patients Deferring Stem Cell Transplant

KRDI in Transplant-Eligible MM · Source last updated 2026-06-03

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
NUMBER
Unit
percentage of participants
Interval / dispersion
Not reported
Time frame
224 Days

What was measured

Percentage of patients who achieved a complete response (CR) or stringent CR (sCR) per International Myeloma Working Group (IMWG) Uniform Response criteria after 4 cycles of of Isatuximab, Carfilzomib, Lenalidomide, and Dexamethasone (KRDI), stem cell collection, and 4 additional cycles of KRDI after deferring stem cell transplant (8 cycles total). IMWG criteria define a CR as "Negative immunofixation on the serum and urine and disappearance of any soft tissue plasmacytomas and \< 5% plasma cells in bone marrow" and an sCR as "CR plus normal FLC ratio and absence of clonal cells in bone marrow by immunohistochemistry or immunofluorescence."

Analysis population: Of all patients enrolled to the main arm of the protocol (induction), 47 were evaluable for response. Of these 47 patients, 42 deferred stem cell transplant.

Groups in this outcome

Deferred Stem Cell Transplant (4 Cycles, Stem Cell Collection, 4 Additional Cycles)

All participants will receive 4 cycles of induction therapy. Based on the recommendation of investigators, participants may or may not proceed to an autologous stem cell transplant (SCT) after cycles 1-4. Each cycle is 28 days in length (see dosing details below.) For patient undergoing upfront stem cell transplant (SCT): 4 cycles followed by stem cell collection, high-dose chemotherapy, and autologous SCT followed by 2 cycles (called consolidation). For patients deferring SCT following collection: 4 cycles followed by stem cell collection followed by 4 additional cycles. Carfilzomib: 56 mg/m2 IV on days 1, 8,15 Lenalidomide 25 mg orally (PO) on Days 1-21 Isatuximab: 10 mg/kg IV weekly for cycles 1-2 (days 1, 8, 15, 22), then every 2 weeks for cycles 3-6 (days 1 and 15), and monthly (day 1) thereafter Dexamethasone: 20 mg orally (PO) administered day of and day after carfilzomib and isatuximab (days 1, 2, 8, 9, 15, and 16; days 22 and 23 during cycles 1-2 only). Patients achieving a partial response (PR) or greater will be stratified by cytogenetic risk and receive either high risk (Lenalidomide 10 mg orally (PO) Day 1-21 Carfilzomib 56 mg/m2 or last tolerated dose IV Days 1, 15 Isatuximab 10 mg/kg IV Day 1) or low risk maintenance therapy (Lenalidomide 10 mg orally (PO) Day 1-21).

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
Deferred Stem Cell Transplant (4 Cycles, Stem Cell Collection, 4 Additional Cycles)42

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Deferred Stem Cell Transplant (4 Cycles, Stem Cell Collection, 4 Additional Cycles)67Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        67
denoms
  1. counts
    1. group Id
      OG000
      value
      42
    units
    Participants
description
Percentage of patients who achieved a complete response (CR) or stringent CR (sCR) per International Myeloma Working Group (IMWG) Uniform Response criteria after 4 cycles of of Isatuximab, Carfilzomib, Lenalidomide, and Dexamethasone (KRDI), stem cell collection, and 4 additional cycles of KRDI after deferring stem cell transplant (8 cycles total). IMWG criteria define a CR as "Negative immunofixation on the serum and urine and disappearance of any soft tissue plasmacytomas and \< 5% plasma cells in bone marrow" and an sCR as "CR plus normal FLC ratio and absence of clonal cells in bone marrow by immunohistochemistry or immunofluorescence."
groups
  1. description
    All participants will receive 4 cycles of induction therapy. Based on the recommendation of investigators, participants may or may not proceed to an autologous stem cell transplant (SCT) after cycles 1-4. Each cycle is 28 days in length (see dosing details below.) For patient undergoing upfront stem cell transplant (SCT): 4 cycles followed by stem cell collection, high-dose chemotherapy, and autologous SCT followed by 2 cycles (called consolidation). For patients deferring SCT following collection: 4 cycles followed by stem cell collection followed by 4 additional cycles. Carfilzomib: 56 mg/m2 IV on days 1, 8,15 Lenalidomide 25 mg orally (PO) on Days 1-21 Isatuximab: 10 mg/kg IV weekly for cycles 1-2 (days 1, 8, 15, 22), then every 2 weeks for cycles 3-6 (days 1 and 15), and monthly (day 1) thereafter Dexamethasone: 20 mg orally (PO) administered day of and day after carfilzomib and isatuximab (days 1, 2, 8, 9, 15, and 16; days 22 and 23 during cycles 1-2 only). Patients achieving a partial response (PR) or greater will be stratified by cytogenetic risk and receive either high risk (Lenalidomide 10 mg orally (PO) Day 1-21 Carfilzomib 56 mg/m2 or last tolerated dose IV Days 1, 15 Isatuximab 10 mg/kg IV Day 1) or low risk maintenance therapy (Lenalidomide 10 mg orally (PO) Day 1-21).
    id
    OG000
    title
    Deferred Stem Cell Transplant (4 Cycles, Stem Cell Collection, 4 Additional Cycles)
param Type
NUMBER
population Description
Of all patients enrolled to the main arm of the protocol (induction), 47 were evaluable for response. Of these 47 patients, 42 deferred stem cell transplant.
reporting Status
POSTED
time Frame
224 Days
title
Complete Response Rate in Patients Deferring Stem Cell Transplant
type
SECONDARY
unit Of Measure
percentage of participants

Download exact source JSON → · Snapshot ctgov-results-25a395029948b04d52b1253f

Preserved source evidence · Not medical advice