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NCT04266301 · OUTCOME

Percentage of Participants With Either CR, or mCR, or PR, or HI in Each Treatment Arm According to International Working Group for MDS (IWG-MDS) as Per Investigator Assessment

Study of Efficacy and Safety of MBG453 in Combination With Azacitidine in Subjects With Intermediate, High or Very High Risk Myelodysplastic Syndrome (MDS) as Per IPSS-R, or Chronic Myelomonocytic Leukemia-2 (CMML-2) · Source last updated 2026-01-13

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
95% Confidence Interval
Time frame
up to approx. 52 months

What was measured

Response rate of participants with complete remission (CR), or marrow remission (mCR), or partial remission (PR), or hematologic improvement (HI). CR: where the Bone marrow: ≤ 5% blasts with normal maturation of all cell lineages and Peripheral blood: where Hgb ≥ 10 g/dL AND Platelets ≥ 100\*109/L AND Neutrophils ≥ 1.0\*109/L AND Peripheral blasts 0%. mCR: Bone marrow: ≤ 5% blasts and blast count decrease by ≥ 50% compared to baseline; Peripheralblood/transfusion: Marrow CR may be achieved with or without improved blood counts or with or without transfusions PR: All CR criteria except bone marrow: ≥50% decrease from baseline in blasts in bone marrow AND blast count in bone marrow \>5%. HI: restoration or enhancement of the function of the body's blood cell-producing system that must last as least 8 weeks.

Analysis population: FAS comprised of all participants to whom study treatment had been assigned by randomization.

Groups in this outcome

Sabatolimab (MBG453) + Azacitidine

Participants were randomized to sabatolimab plus Azacitidine

Placebo + Azacitidine

Participants were randomized to placebo plus Azacitidine

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

Analysis denominator · Participants

GroupSource count
Sabatolimab (MBG453) + Azacitidine265
Placebo + Azacitidine265

Reported measurements

Source class 1
Values in Percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Sabatolimab (MBG453) + Azacitidine58.1Not reported51.964.1Not reported
Placebo + Azacitidine47.5Not reported41.453.7Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        51.9
        upper Limit
        64.1
        value
        58.1
      2. group Id
        OG001
        lower Limit
        41.4
        upper Limit
        53.7
        value
        47.5
denoms
  1. counts
    1. group Id
      OG000
      value
      265
    2. group Id
      OG001
      value
      265
    units
    Participants
description
Response rate of participants with complete remission (CR), or marrow remission (mCR), or partial remission (PR), or hematologic improvement (HI). CR: where the Bone marrow: ≤ 5% blasts with normal maturation of all cell lineages and Peripheral blood: where Hgb ≥ 10 g/dL AND Platelets ≥ 100\*109/L AND Neutrophils ≥ 1.0\*109/L AND Peripheral blasts 0%. mCR: Bone marrow: ≤ 5% blasts and blast count decrease by ≥ 50% compared to baseline; Peripheralblood/transfusion: Marrow CR may be achieved with or without improved blood counts or with or without transfusions PR: All CR criteria except bone marrow: ≥50% decrease from baseline in blasts in bone marrow AND blast count in bone marrow \>5%. HI: restoration or enhancement of the function of the body's blood cell-producing system that must last as least 8 weeks.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants were randomized to sabatolimab plus Azacitidine
    id
    OG000
    title
    Sabatolimab (MBG453) + Azacitidine
  2. description
    Participants were randomized to placebo plus Azacitidine
    id
    OG001
    title
    Placebo + Azacitidine
param Type
NUMBER
population Description
FAS comprised of all participants to whom study treatment had been assigned by randomization.
reporting Status
POSTED
time Frame
up to approx. 52 months
title
Percentage of Participants With Either CR, or mCR, or PR, or HI in Each Treatment Arm According to International Working Group for MDS (IWG-MDS) as Per Investigator Assessment
type
SECONDARY
unit Of Measure
Percentage of participants

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

Preserved source evidence · Not medical advice