Secondary Outcome(s)
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Kaplan-Meier Estimate for Median Time to Transformation to Acute Myeloid Leukemia (AML) or Death From Any Cause, Whichever Occurred First
[Time Frame: Day 1 (randomization) to 42 months]
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Time to Disease Progression, Relapse After Complete or Partial Remission, or Death From Any Cause
[Time Frame: Day 1 (randomization) to 42 months]
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Number of Participants Showing Hematologic Improvement Using International Working Group (IWG 2000) Criteria for Myelodysplastic Syndrome (MDS) Assessed by Independent Review Committee
[Time Frame: Day 1 to 42 months]
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Summary of Participants' Red Blood Cell (RBC) Transfusion Status for Participants Who Were Transfusion Dependent at Baseline
[Time Frame: Day 1 (randomization) to 42 months]
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Summary of Participants' Platelet Transfusion Status for Participants Who Were Transfusion Dependent at Baseline
[Time Frame: Day 1 (randomization) to 42 months]
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Number of Infections Per Treatment Year Requiring Intravenous Antibiotics, Antifungals or Antivirals
[Time Frame: Day 1 (randomization) to 42 months]
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Number of Participants Considered Hematologic Responders by Investigator Determinations Using International Working Group (IWG 2000) Criteria for Myelodysplastic Syndrome (MDS)
[Time Frame: Day 1 to 42 months]
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Summary of Participants' Platelet Transfusion Status for Participants Who Were Transfusion Independent at Baseline
[Time Frame: Day 1 (randomization) to 42 months]
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Kaplan-Meier Estimates for Median Time to Transformation to Acute Myeloid Leukemia (AML)
[Time Frame: Day 1 (randomization) to 42 months]
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Summary of Participants' Red Blood Cell (RBC) Transfusion Status for Participants Who Were Transfusion Independent at Baseline
[Time Frame: Day 1 (randomization) to 42 months]
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Number of Participants in Different Categories of Adverse Experiences During Core Study Period
[Time Frame: Day 1 (randomization) to 42 months]
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Duration of Any Hematologic Improvement
[Time Frame: Day 1 (randomization) to 42 months]
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