Mengni Yan1, Gang Wang1, Jiaheng Wang1 and Linjuan Xu1.
This is an Open Access article distributed
under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by-nc/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Abstract Background:
Elderly patients with relapsed acute myeloid leukemia (AML) have
limited treatment options and a poor prognosis. Venetoclax combined
with azacitidine has shown promising activity in newly diagnosed or
relapsed/refractory AML, but real-world data on older populations
remain scarce. This study aimed to evaluate the efficacy, safety, and
prognostic factors — including select blood biomarkers — of venetoclax plus
azacitidine in elderly patients with relapsed AML. |
Introduction
Methods
Study Design and Setting. This single-center, retrospective study was conducted at the Quzhou Affiliated Hospital of Wenzhou Medical University. We reviewed medical records of consecutive patients with relapsed AML who were treated with a combination of venetoclax and azacitidine between January 2018 and December 2022. The study was authorized by the Medical Ethics Committee of the Quzhou Affiliated Hospital of Wenzhou Medical University, and informed consent was obtained from all participants.Results
A total of 50 patients with relapsed AML were included in this analysis. The median age was 72 years (range, 65–82), and 56% (n=28) were male (Table 1). Among these patients, 40% (n=20) had an Eastern Cooperative Oncology Group (ECOG) performance status of ≥2 (Table 1). The majority presented with intermediate (44%) or adverse (46%) cytogenetic features, and 16% (n=8) were FLT3-ITD-positive (Table 1). Baseline laboratory values revealed elevated LDH in 40% of the cohort and high CRP levels in 28% (Table 1). Additional blood-borne factors - such as ferritin and β2-microglobulin - were available in most patients and are detailed in Table 1.![]() |
Table 4. Survival Outcomes. |
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Table 5. Univariate Analysis of Prognostic Factors. |
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Table 6. Multivariate Cox Analysis of Prognostic Factors. |
Discussion
Our study demonstrated that elderly patients with relapsed AML treated with venetoclax plus azacitidine achieved notable response rates, with the majority reaching either complete Remission or complete Remission with incomplete hematologic recovery. Additionally, both overall survival and event-free survival were clinically meaningful, suggesting the potential efficacy of this regimen in a population traditionally characterized by limited therapeutic options and poor prognoses. Several baseline blood-borne factors, including LDH, CRP, and β2-microglobulin, emerged as relevant prognostic markers, providing insight into how patient-specific biology may influence treatment outcomes. Taken together, these findings indicate that venetoclax plus azacitidine not only offers a promising treatment avenue for this vulnerable population but also underscores the importance of prognostic stratification in optimizing clinical decision-making.Conclusions
Our findings suggest that venetoclax plus azacitidine represents a promising therapeutic option for elderly, relapsed AML patients who typically have few viable treatment alternatives. The inclusion of comprehensive biomarker analyses, such as LDH, CRP, and β2-microglobulin, provides valuable prognostic insights that may help tailor therapy to individual patient risk profiles.Ethical Approval
The study was authorized by the Medical Ethics Committee of the Quzhou Affiliated Hospital of Wenzhou Medical University, and informed consent was obtained from all participants.Data availability statement
Data sets generated during the current study are available from the corresponding author on reasonable request.References
Supplementary Data
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Supplementary Table S1. Baseline comorbidities and fitness. |
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Supplementary Table S2. Antecedent therapies before HMA+VEN. |
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Supplementary Table S3. Responses by prior allo-HSCT status. |
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Supplementary Table S4. Baseline coagulation parameters and ISTH DIC classification. |