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A Study Evaluating Safety and Efficacy of Venetoclax in Combination With Azacitidine Versus Standard of Care After Allogeneic Stem Cell Transplantation (SCT) in Participants With Acute Myeloid Leukemia (AML)

A Randomized, Open Label Phase 3 Study Evaluating Safety and Efficacy of Venetoclax in Combination With Azacitidine After Allogeneic Stem Cell Transplantation in Subjects With Acute Myeloid Leukemia (AML) (VIALE-T)

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04161885
Acronym
VIALE-T
Enrollment
465
Registered
2019-11-13
Start date
2020-02-26
Completion date
2025-09-23
Last updated
2026-06-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Myeloid Leukemia (AML), Cancer

Keywords

Acute Myeloid Leukemia (AML), Venetoclax, Azacitidine, Stem Cell Transplantation (SCT), Best Support Care (BSC), Cancer

Brief summary

The main objective of this study is to evaluate the efficacy of venetoclax in combination with azacitidine to improve Overall Survival (OS) in Acute Myeloid Leukemia (AML) participants compared to Best Supportive Care (BSC) when given as maintenance therapy following allogeneic stem cell transplantation (SCT). This study will have 2 parts: Part 1 (Dose Confirmation), which may include participants who are greater than or equal to 18 years old; Part 2 (Randomization) which may include participants who are greater than or equal to 12 years old. During Part 1, recommended Phase 3 dose of venetoclax in combination with azacitidine will be determined and during Part 2, the efficacy and safety of venetoclax with azacitidine (Part 2 Arm A) will be compared with BSC (Part 2 Arm B).

Interventions

DRUGVenetoclax

Tablet; Oral

DRUGAzacitidine

Subcutaneous (SC) or intravenous (IV) injection

OTHERBest Supportive Care (BSC)

BSC is the best supportive care, without AML directed therapy, determined per the investigator and institutional guidelines.

Sponsors

AbbVie
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
12 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Participants must be at least 18 years old for Part 1 and, at least 12 years old for Part 2. * Participant must be diagnosed with Acute Myeloid Leukemia (AML) by World Health Organization (WHO) criteria (2017) and either be planning for allogeneic stem cell transplantation or have received allogeneic stem cell transplantation within the past 60 days. * Blast percentage in bone marrow before transplant must be \< 10%. * Blast count in peripheral blood must be "0" and Blast percentage in bone marrow must be \< 5% after transplant. * Participant meet adequate renal, hepatic and hematologic criteria as described in the protocol. * Participants \>= 17 years old must have a Karnofsky Performance Scale (KPS) score \> 50 and participants between 12 to 16 years old must have a Lansky Play Performance Scale score \> 40.

Exclusion criteria

* History of disease progression during prior treatment with venetoclax. * History of any other malignancy within 2 years prior to study entry, except for: Adequately treated in situ carcinoma of the cervix uteri or carcinoma in situ of breast; basal cell carcinoma of the skin or localized squamous cell carcinoma of the skin; previous malignancy confined and surgically resected (or treated with other modalities) with curative intent; Myelodysplastic Syndrome, Myeloproliferative neoplasm (only allowed if it transformed to AML and AML should be the indication for marrow transplantation). * Participant has known infection with HIV or history of being positive for hepatitis B virus (HBV) or hepatitis C virus (HCV) infection. * Presence of clinical or laboratory symptoms/signs of extramedullary myeloid malignancy.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Dose-Limiting Toxicities (DLTs) Following Administration of Venetoclax and Azacitidine (Part 1)Up to 28 daysDLTs were any of the hematologic, nonhematologic toxicities, adverse events (AEs) occurring following administration of venetoclax and AZA as described in the protocol and evaluated by the Investigator and the sponsor.
Overall Survival (OS) (Part 2)Up to approximately 41 monthsOS was defined as the time from the date of randomization to the date of death from any cause.

Secondary

MeasureTime frameDescription
Morphologic Relapse-Free Survival (RFS) (Part 2)Up to approximately 41 monthsMorphologic relapse from AML was defined as bone marrow blasts of \>= 5% or reappearance of blasts in the peripheral blood not attributable to any other cause (e.g., bone marrow regeneration) in at least 2 peripheral blood samples at least one week apart or development of extramedullary disease after achieving a complete remission (CR) or complete remission with incomplete count recovery (CRi); or the date of death from any cause, whichever comes first as determined by the investigator.
Composite Relapse-Free Survival (RFS) (Part 2)Up to approximately 41 monthsComposite RFS was defined as the time from randomization from either morphologic relapse from AML, or non-morphologic relapse from AML, whichever comes first. Non-morphologic relapse from AML was defined as increase in disease burden determined by standard methods with reappearance or acquisition of new findings with or without change in anti-leukemic treatment per investigator decision due to cytogenetic abnormalities or change in molecular marker or measurable residual disease by multiparameter flow with sensitivity to at least 10\^-3; or the date of death from any cause, whichever came first as determined by the investigator.
Graft-versus-Host Disease (GvHD)-Free, Relapse Free Survival (GRFS) (Part 2)Up to approximately 41 monthsGRFS was defined as the time from the date of randomization to occurrence of disease relapse or incidence of GvHD or death from any cause.
Rate of Participants Without Higher Grade of GvHD (Part 2)90 days after randomizationRate of Participants without higher grade of GvHD was defined as the percentage of participants without grade 2 or higher for acute graft-versus-host disease (aGvHD) and moderate/severe for chronic graft-versus-host disease (cGvHD) assessed by investigator at 90 days after randomization.
Change From Baseline in Physical Functioning Subscore as Measured by the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC-QLQ-C30) (Part 2)Baseline, Month 6The EORTC QLQ-C30 is a 30-item participant self-report questionnaire composed of both multi-item and single scales. The physical functioning score, reported here, ranged from 0 to 100, with a higher score indicating a better level of functioning. Positive changes from baseline indicate improvement.
Change From Baseline in Patient Reported Outcomes Measurement Information System (PROMIS) Cancer Fatigue Short Form (SF) 7a Score (Part 2)Baseline, Month 6PROMIS Cancer Fatigue SF is a seven item questionnaire that assesses the impact and experience of fatigue over the past 7 days. All questions employ the following five response options: 1 = Not at all, 2 = A little bit, 3 = Somewhat, 4 = Quite a bit, and 5 = Very much. The total raw score is the sum of the responses to each question and is converted to a T-score. The T-score re-scales the total raw score to a standardized score with a mean of 50 and a standard deviation of 10. T-Scores range from 29.4 to 83.2, with higher scores indicating more fatigue. Negative changes from baseline indicate improvement.
Percentage of Participants With Measurable Residual Disease (MRD) Conversion in Participants With MRD >= 10^-3 at Baseline (Part 2)Up to approximately 41 monthsMRD conversion rate was defined as the percentage of participants who convert to MRD \< 10\^-3 after initiation of treatment. The population for MRD analysis included participants whose bone marrow was MRD positive (\>=10\^-3, as determined by central flow cytometry) at baseline prior to randomization.
Time to Deterioration in Global Health Status (GHS)/Quality of Life (QoL) in Adult Participants (Part 2)Up to approximately 41 monthsTime to deterioration was defined as number of days from randomization to either deterioration of \>= 5 points based on the EORTC QLQ-C30 version 3 or death due to any cause. The GHS/QoL scale includes 2 questions in which participants were asked to rate their overall health and overall quality of life during the past week on a scale from 1 (very poor) to 7 (excellent). The 2 scores were averaged and transformed to a scale from 0 to 100, where a high score represents a high QoL.
Change From Baseline in European Quality-of-Life-5 Dimensional-5-Level (EQ-5D-5L) ScoreBaseline, Month 6The EQ-5D-5L is a generic preference instrument that has been validated in numerous populations and has 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression, each of which are rated on five levels of severity (1: no problems, 2: slight problems, 3: moderate problems, 4: severe problems, 5: extreme problems) with higher scores representing higher symptom burden. A negative change from baseline indicates improvement in health status.

Countries

Australia, Brazil, Canada, China, Czechia, France, Germany, Greece, Hungary, Israel, Italy, Japan, South Korea, Spain, Switzerland, Taiwan, United Kingdom, United States

Contacts

STUDY_DIRECTORABBVIE INC.

AbbVie

Participant flow

Pre-assignment details

In Part 1, a total of 65 participants were screened and 35 participants received at least one dose of study drug. In Part 2, a total of 783 participants were screened, 430 were randomized, and 205 received at least one dose of study drug.

Baseline characteristics

Characteristic
Age, Customized
< 18
5 Participants
Age, Customized
>= 18 to < 65
356 Participants
Age, Customized
>= 65 to < 75
97 Participants
Age, Customized
>= 75
7 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
4 Participants
Race (NIH/OMB)
More than one race
1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
127 Participants
Sex: Female, Male
Female
79 Participants
Sex: Female, Male
Male
19 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
12 / 303 / 546 / 21656 / 214
other
Total, other adverse events
30 / 305 / 5179 / 216200 / 214
serious
Total, serious adverse events
9 / 302 / 566 / 21697 / 214

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 5, 2026