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NCT03201965 · OUTCOME

Time to Subsequent Non-cross Resistant Anti-plasma Cell Therapy

A Study to Evaluate the Efficacy and Safety of Daratumumab in Combination With Cyclophosphamide, Bortezomib and Dexamethasone (CyBorD) Compared to CyBorD Alone in Newly Diagnosed Systemic Amyloid Light-chain (AL) Amyloidosis · Source last updated 2025-11-26

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

Measure
MEDIAN
Unit
Months
Interval / dispersion
95% Confidence Interval
Time frame
From date of first randomization (Day -3) up to 6.5 years

What was measured

Time to subsequent non-cross resistant anti-plasma cell therapy was defined as the time from the date of randomization to the start date of subsequent non-cross resistant, anti-plasma cell therapy.

Analysis population: The intent to treat analysis set included all randomized participants. Data for this outcome measure was planned to be collected and analyzed for specified arms only.

Groups in this outcome

CyBorD

Participants received dexamethasone (40 mg weekly dose)starting from cycle 1 day1 in every 28-day cycle followed by cyclophosphamide 300 mg/m\^2 orally or IV maximum weekly dose 500 mg and then bortezomib 1.3 mg/m\^2 SC injection once weekly up to 7.33 months. All cycles were of 28 days. After completion of treatment phase participants entered into the post treatment observation phase and were continued with disease evaluations every 8 weeks post last dose up to disease progression (up to 6.5 years). Participants then entered into long term follow up phase and were followed up for survival every 16 weeks (up to 7.1 years).

Daratumumab Plus CyBorD

Participants received combination therapy for six cycles of 28 days each, daratumumab 1800 mg SC weekly starting from cycles 1 day 1 and cycle 2, every 2 weeks in cycles 3 through 6, dexamethasone 40 mg weekly (on days of daratumumab dosing, dexamethasone was split, 20 mg as premedication and 20 mg as post daratumumab dosing), cyclophosphamide 300 mg/m\^2 orally or IV maximum weekly dose 500 mg, bortezomib 1.3 mg/m\^2 SC injection once weekly. After 6 cycles, participants continued to receive daratumumab SC monotherapy until disease progression, start of subsequent therapy or up to 26.71 months from the first dose of study treatment. All cycles were of 28 days. After completion of treatment phase participants entered into the post treatment observation phase and were continued with disease evaluations every 8 weeks post last dose up to disease progression (up to 6.5 years). Participants then entered into long term follow up phase and were followed up for survival every 16 weeks (up to 7.1 years).

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

Analysis denominator · Participants

GroupSource count
CyBorD193
Daratumumab Plus CyBorD195

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
CyBorD11.30Not reported8.7121.03Not reported
Daratumumab Plus CyBorDNANot reportedNANAHere, 'NA' signifies that median, lower limit and upper limit of 95% CI could not be estimated due to an insufficient number of participants with events.
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        8.71
        upper Limit
        21.03
        value
        11.30
      2. comment
        Here, 'NA' signifies that median, lower limit and upper limit of 95% CI could not be estimated due to an insufficient number of participants with events.
        group Id
        OG001
        lower Limit
        NA
        upper Limit
        NA
        value
        NA
denoms
  1. counts
    1. group Id
      OG000
      value
      193
    2. group Id
      OG001
      value
      195
    units
    Participants
description
Time to subsequent non-cross resistant anti-plasma cell therapy was defined as the time from the date of randomization to the start date of subsequent non-cross resistant, anti-plasma cell therapy.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received dexamethasone (40 mg weekly dose)starting from cycle 1 day1 in every 28-day cycle followed by cyclophosphamide 300 mg/m\^2 orally or IV maximum weekly dose 500 mg and then bortezomib 1.3 mg/m\^2 SC injection once weekly up to 7.33 months. All cycles were of 28 days. After completion of treatment phase participants entered into the post treatment observation phase and were continued with disease evaluations every 8 weeks post last dose up to disease progression (up to 6.5 years). Participants then entered into long term follow up phase and were followed up for survival every 16 weeks (up to 7.1 years).
    id
    OG000
    title
    CyBorD
  2. description
    Participants received combination therapy for six cycles of 28 days each, daratumumab 1800 mg SC weekly starting from cycles 1 day 1 and cycle 2, every 2 weeks in cycles 3 through 6, dexamethasone 40 mg weekly (on days of daratumumab dosing, dexamethasone was split, 20 mg as premedication and 20 mg as post daratumumab dosing), cyclophosphamide 300 mg/m\^2 orally or IV maximum weekly dose 500 mg, bortezomib 1.3 mg/m\^2 SC injection once weekly. After 6 cycles, participants continued to receive daratumumab SC monotherapy until disease progression, start of subsequent therapy or up to 26.71 months from the first dose of study treatment. All cycles were of 28 days. After completion of treatment phase participants entered into the post treatment observation phase and were continued with disease evaluations every 8 weeks post last dose up to disease progression (up to 6.5 years). Participants then entered into long term follow up phase and were followed up for survival every 16 weeks (up to 7.1 years).
    id
    OG001
    title
    Daratumumab Plus CyBorD
param Type
MEDIAN
population Description
The intent to treat analysis set included all randomized participants. Data for this outcome measure was planned to be collected and analyzed for specified arms only.
reporting Status
POSTED
time Frame
From date of first randomization (Day -3) up to 6.5 years
title
Time to Subsequent Non-cross Resistant Anti-plasma Cell Therapy
type
SECONDARY
unit Of Measure
Months

Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0

Preserved source evidence · Not medical advice