VIALE-A: A randomized (2:1), double-blind, placebo-controlled, multicenter, phase 3 study that evaluated the efficacy and safety of VENCLEXTA (venetoclax tablets) in combination with azacitidine (VEN+AZA; N=286) vs placebo with azacitidine (PBO+AZA; N=145) in adults with newly diagnosed AML who were ≥75 years of age, or had comorbidities (see baseline characteristics) that precluded the use of intensive induction chemotherapy.1
View full study design.
AZA=azacitidine; HR=hazard ratio; mOS=median overall survival; OS=overall survival; PBO=placebo; VEN=VENCLEXTA.
*Remission refers to CR+CRh.
DOCR (duration of CR) is defined as the number of days from the date of first response of CR to the date of earliest evidence of confirmed morphologic relapse, confirmed progressive disease, or death due to disease progression.1
DOCR+CRh (duration of CR+CRh) is defined as the number of days from the date of first response of CR+CRh (the first of either CR or CRh) to the date of earliest evidence of confirmed morphologic relapse, confirmed progressive disease, or death due to disease progression.1
†Endpoints were not powered or tested to demonstrate a statistically significant difference between the treatment arms.
Transfusion independence was defined as no RBC and no platelet transfusion during any consecutive ≥56-day post-baseline period.1
Transfusion dependence was defined as requiring RBC or platelet transfusion at baseline (within 8 weeks prior to the first dose of study drug or randomization).3
CI=confidence interval; mDOR=median duration of response; mDOCR=median duration of complete remission; mDOCR+CRh=median duration of complete response and complete remission with partial hematologic recovery; RBC=red blood cell.
Data cutoff date: December 1, 2021
‡In the VIALE-A clinical trial, following a dose interruption, if hematologic recovery was not achieved, VENCLEXTA could be reduced by 7 days to 21 days out of a 28-day cycle.
This exploratory post hoc analysis was not powered to demonstrate statistical significance. No conclusions of efficacy or safety can be drawn from these data.
Subgroup analyses were not powered to demonstrate a statistically significant difference in OS. Small patient numbers and lack of multiplicity adjustments for some subgroups can be a limitation of these analyses. No conclusions of efficacy or safety can be drawn from these data.
§The HR of OS was estimated using the stratified log-rank test and the Cox proportional hazards model for OS.
ECOG=Eastern Cooperative Oncology Group; FLT=fms-like tyrosine kinase; IDH=isocitrate dehydrogenase; NPM=nucleophosmin; n/N=total number of patients per total number of events; NR=not reached; TP53=tumor protein 53.
EORTC QLQ-C30 Questionnaire
PROMIS Fatigue Short Form 7a
¶Median follow-up was ~43.2 months (range: <0.1-53.4).17
||All questionnaires were collected on Day 1 of Cycle 1 and every other cycle for the duration of the trial.
Number of days from baseline to the first worsening of ≥1 pre-established threshold
**TTD data does not capture improvements in PRO measure from baseline in responding patients. Patients without a baseline PRO measure were excluded from analysis. Deterioration events were based on the change from the baseline score only. TTD analyses were conducted for all patients in the full dataset with available data on ≥1 PRO measure from baseline to the given assessment.
Median Time to Deterioration23
Median Time to Deterioration23
1L=first line; AML=acute myeloid leukemia; EORTC QLQ-C30=European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30; IQR=interquartile range; PRO=patient reported outcome; PROMIS=Patient-reported Outcome Measurement Information System; QoL=quality of life; RBC=red blood cell; TLS=tumor lysis syndrome; TP53=tumor protein 53; TTD=time to deterioration.
Median follow-up of 10.2 months
Real-world data are observational in nature and are not based on controlled clinical studies. Results from this study may differ from those observed and are not in the VENCLEXTA Prescribing Information.
US-VENA-250092
VENCLEXTA® and its design are registered trademarks of AbbVie Inc.
VENCLEXTA Prescribing Information.
VENCLEXTA Prescribing Information.
Referenced with permission from the NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®) for Acute Myeloid Leukemia V.3.2026. © National Comprehensive Cancer Network, Inc. 2026. All rights reserved. Accessed November 24, 2025. To view the most recent and complete version of the guideline, go online to NCCN.org. NCCN makes no warranties of any kind whatsoever regarding their content, use or application and disclaims any responsibility for their application or use in any way.
Referenced with permission from the NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®) for Acute Myeloid Leukemia V.3.2026. © National Comprehensive Cancer Network, Inc. 2026. All rights reserved. Accessed November 24, 2025. To view the most recent and complete version of the guideline, go online to NCCN.org. NCCN makes no warranties of any kind whatsoever regarding their content, use or application and disclaims any responsibility for their application or use in any way.
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Data on file, AbbVie Inc. ABVRRTI71211.
Data on file, AbbVie Inc. ABVRRTI71211.
Data on file, AbbVie Inc. ABVRRTI71272.
Data on file, AbbVie Inc. ABVRRTI71272.
Data on file, AbbVie Inc. ABVRRTI67697.
Data on file, AbbVie Inc. ABVRRTI67697.
Data on file, AbbVie Inc. ABVRRTI71500.
Data on file, AbbVie Inc. ABVRRTI71500.
CRESEMBA Prescribing Information.
CRESEMBA Prescribing Information.
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