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NCT01757535 · OUTCOME

Kaplan-Meier (K-M) Estimate for Overall Survival (OS)

Efficacy of Oral Azacitidine Plus Best Supportive Care as Maintenance Therapy in Subjects With Acute Myeloid Leukemia (AML) in Complete Remission · Source last updated 2025-07-08

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
Day 1 (randomization) up to data cut off date of 15 July 2019; median follow-up for OS estimated by the reverse K-M method was 41.2 months for all participants.

What was measured

Overall survival was defined as time from randomization to death from any cause; participants surviving at the end of the follow-up period, or who withdraw consent, or who were lost to follow up were censored at the date last known alive.

Analysis population: The intent to treat (ITT) population includes participants who were randomized, regardless of whether they received treatment or not.

Groups in this outcome

Oral Azacitidine Plus Best Supportive Care

Participants received 300 mg azacitidine tablets once a day (QD) for the first 14 days of each 28-day treatment cycle until discontinuation, which includes the following reasons: disease relapse, withdrawal of consent, adverse events, participant became eligible for allogeneic bone marrow or stem cell transplantation during the treatment period, death, lost to follow-up, or protocol violation or until the end of the study.

Placebo Plus Best Supportive Care

Participants received identically matching placebo tablets QD for the first 14 days of each 28-day treatment cycle until no longer receiving benefit, withdrawal of consent, disease relapse, adverse events, participant became eligible for allogeneic bone marrow or stem cell transplantation during the treatment period, lost to follow-up, or protocol violation or until the end of the study.

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

Analysis denominator · Participants

GroupSource count
Oral Azacitidine Plus Best Supportive Care238
Placebo Plus Best Supportive Care234

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Oral Azacitidine Plus Best Supportive Care24.7Not reported18.730.5Not reported
Placebo Plus Best Supportive Care14.8Not reported11.717.6Not reported

Source statistical analyses

Group order, estimate direction, methods and comments are retained. No treatment ranking is inferred.

  1. ci Lower Limit
    0.55
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.86
    estimate Comment
    The hazard ratio is from a Cox proportional hazards model stratified by age, cytogenetic risk category, and received consolidation therapy or not.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    other Analysis Description
    The confidence interval (CI) for the difference was derived using Kosorok's method.
    p Value
    0.0009
    p Value Comment
    The p-value is 2-sided from a log-rank test stratified by age, cytogenetic risk category, and received consolidation therapy or not.
    param Type
    Hazard Ratio (HR)
    param Value
    0.69
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.55
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.86
    estimate Comment
    The hazard ratio is from a Cox proportional hazards model stratified by age, cytogenetic risk category, and received consolidation therapy or not.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    other Analysis Description
    The confidence interval (CI) for the difference was derived using Kosorok's method.
    p Value
    0.0009
    p Value Comment
    The p-value is 2-sided from a log-rank test stratified by age, cytogenetic risk category, and received consolidation therapy or not.
    param Type
    Hazard Ratio (HR)
    param Value
    0.69
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        18.7
        upper Limit
        30.5
        value
        24.7
      2. group Id
        OG001
        lower Limit
        11.7
        upper Limit
        17.6
        value
        14.8
denoms
  1. counts
    1. group Id
      OG000
      value
      238
    2. group Id
      OG001
      value
      234
    units
    Participants
description
Overall survival was defined as time from randomization to death from any cause; participants surviving at the end of the follow-up period, or who withdraw consent, or who were lost to follow up were censored at the date last known alive.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received 300 mg azacitidine tablets once a day (QD) for the first 14 days of each 28-day treatment cycle until discontinuation, which includes the following reasons: disease relapse, withdrawal of consent, adverse events, participant became eligible for allogeneic bone marrow or stem cell transplantation during the treatment period, death, lost to follow-up, or protocol violation or until the end of the study.
    id
    OG000
    title
    Oral Azacitidine Plus Best Supportive Care
  2. description
    Participants received identically matching placebo tablets QD for the first 14 days of each 28-day treatment cycle until no longer receiving benefit, withdrawal of consent, disease relapse, adverse events, participant became eligible for allogeneic bone marrow or stem cell transplantation during the treatment period, lost to follow-up, or protocol violation or until the end of the study.
    id
    OG001
    title
    Placebo Plus Best Supportive Care
param Type
MEDIAN
population Description
The intent to treat (ITT) population includes participants who were randomized, regardless of whether they received treatment or not.
reporting Status
POSTED
time Frame
Day 1 (randomization) up to data cut off date of 15 July 2019; median follow-up for OS estimated by the reverse K-M method was 41.2 months for all participants.
title
Kaplan-Meier (K-M) Estimate for Overall Survival (OS)
type
PRIMARY
unit Of Measure
Months

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