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NCT01566695 · OUTCOME

Duration of RBC Transfusion Independence Among Participants Who Achieved RBC Transfusion Independence for at Least 56 Days

The Efficacy and Safety of Oral Azacitidine Plus Best Supportive Care Versus Placebo and Best Supportive Care in Subjects With Red Blood Cell (RBC) Transfusion-Dependent Anemia and Thrombocytopenia Due to International Prognostic Scoring System (IPSS) Low Risk Myelodysplastic Syndrome (MDS) · Source last updated 2025-01-07

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 the date of randomization of study drug up to the data cut-off date of 25 January 2019

What was measured

Duration of RBC transfusion independence was analyzed only for participants who achieved RBC transfusion independence of ≥ 56 days on treatment. Duration of RBC transfusion independence was defined as the time from the date transfusion independence is first observed (day 1 of a ≥ 56 days period without a transfusion) until the date the participants had a subsequently documented RBC transfusion. In the event a participant had more than one ≥56 days rolling periods which met the RBC independence criteria, the duration with the longest rolling period was used in the analysis. Participants who maintained RBC TI through the end of the treatment period were censored at the date of treatment discontinuation, death, or 1 day before the start of the subsequent MDS treatment (if any), whichever occurred first, or the particiapnts latest available assessment date in the database if the treatment was still on-going.

Analysis population: Intent to Treat population. Participants who achieved RBC transfusion independence of ≥ 56 days on treatment.

Groups in this outcome

Oral Azacitidine and Best Supportive Care

Participants received 300 mg oral azacitidine tablets daily on days 1 to 21 of each 28-day treatment cycle and BSC included and was not limited to pRBC (packed red blood cell \[pRBC\] and whole blood), platelet transfusions (single donor or pooled donor), antibiotic, antiviral and/or antifungal therapy, nutritional support, and granulocyte colony stimulating factors (G-CSF) for participants who experienced neutropenic fever/infections.

Placebo Plus Best Supportive Care

Participants received identically matching placebo tablets QD on days 1 to 21 of each 28-day treatment cycle and BSC which included but was not limited to, pRBC and whole blood, platelet transfusions (single donor or pooled donor), antibiotic, antiviral and/or antifungal therapy, nutritional support, and G-CSF for participants who experienced neutropenic fever/infections.

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 and Best Supportive Care33
Placebo Plus Best Supportive Care13

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Oral Azacitidine and Best Supportive Care11.1Not reported8.226.0Not reported
Placebo Plus Best Supportive Care12.0Not reported2.3NACould not be estimated due to the low number of events at the time of the analysis.
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        8.2
        upper Limit
        26.0
        value
        11.1
      2. comment
        Could not be estimated due to the low number of events at the time of the analysis.
        group Id
        OG001
        lower Limit
        2.3
        upper Limit
        NA
        value
        12.0
denoms
  1. counts
    1. group Id
      OG000
      value
      33
    2. group Id
      OG001
      value
      13
    units
    Participants
description
Duration of RBC transfusion independence was analyzed only for participants who achieved RBC transfusion independence of ≥ 56 days on treatment. Duration of RBC transfusion independence was defined as the time from the date transfusion independence is first observed (day 1 of a ≥ 56 days period without a transfusion) until the date the participants had a subsequently documented RBC transfusion. In the event a participant had more than one ≥56 days rolling periods which met the RBC independence criteria, the duration with the longest rolling period was used in the analysis. Participants who maintained RBC TI through the end of the treatment period were censored at the date of treatment discontinuation, death, or 1 day before the start of the subsequent MDS treatment (if any), whichever occurred first, or the particiapnts latest available assessment date in the database if the treatment was still on-going.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received 300 mg oral azacitidine tablets daily on days 1 to 21 of each 28-day treatment cycle and BSC included and was not limited to pRBC (packed red blood cell \[pRBC\] and whole blood), platelet transfusions (single donor or pooled donor), antibiotic, antiviral and/or antifungal therapy, nutritional support, and granulocyte colony stimulating factors (G-CSF) for participants who experienced neutropenic fever/infections.
    id
    OG000
    title
    Oral Azacitidine and Best Supportive Care
  2. description
    Participants received identically matching placebo tablets QD on days 1 to 21 of each 28-day treatment cycle and BSC which included but was not limited to, pRBC and whole blood, platelet transfusions (single donor or pooled donor), antibiotic, antiviral and/or antifungal therapy, nutritional support, and G-CSF for participants who experienced neutropenic fever/infections.
    id
    OG001
    title
    Placebo Plus Best Supportive Care
param Type
MEDIAN
population Description
Intent to Treat population. Participants who achieved RBC transfusion independence of ≥ 56 days on treatment.
reporting Status
POSTED
time Frame
From the date of randomization of study drug up to the data cut-off date of 25 January 2019
title
Duration of RBC Transfusion Independence Among Participants Who Achieved RBC Transfusion Independence for at Least 56 Days
type
SECONDARY
unit Of Measure
months

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

Preserved source evidence · Not medical advice