Minimal Residual Disease Eradication by Azacitidine Maintenance in a Patient with Core-Binding Factor Acute Myeloid
Orhan Kemal Yucel1, Mustafa Serkan Alemdar2, Unal Atas3
1Department of Hematology and Stem Cell Transplantation, Akdeniz University School of Medicine, Antalya, Turkey, okyucel@hotmail.com.
Abstract:
Although core-binding factor AML (CBF-AML) has a favorable outcome, disease relapses occur in up to 35% of patients. Minimal residual disease (MRD) monitoring is one of the important tools to enable us to identify patients at high risk of relapse. Real-time quantitative PCR allows MRD to be measured with high sensitivity in CBF-AML. If the patient with CBF-AML is in complete morphologic remission but MRD positive at the end of treatment, what to do for those is still uncertain. Preemptive intervention approaches such as allogeneic hematopoietic stem cell transplantation or intensive chemotherapy could be an option or another strategy might be just follow-up until overt relapse developed. Although using hypomethylating agents as a maintenance therapy has not been widely explored, here, we report a case with CBF-AML who was still positive for MRD after induction/consolidation therapies and whose MRD was eradicated by azacitidine maintenance.
Insights
Minimal residual disease (MRD) monitoring is crucial for core-binding factor acute myeloid leukemia (CBF-AML). Azacitidine maintenance therapy successfully eradicated MRD in a CBF-AML patient, offering a potential new strategy.
Area of Science:
- Hematology
- Oncology
- Molecular Biology
Background:
- Core-binding factor acute myeloid leukemia (CBF-AML) typically has a favorable prognosis, but up to 35% of patients experience disease relapse.
- Minimal residual disease (MRD) monitoring, particularly via sensitive real-time quantitative PCR, is vital for identifying high-risk patients.
- The optimal management strategy for CBF-AML patients in complete remission but with detectable MRD post-treatment remains uncertain.
Observation:
- This report details a case of CBF-AML where minimal residual disease (MRD) persisted after standard induction and consolidation therapies.
- The patient was positive for MRD despite achieving complete morphologic remission.
Findings:
- Azacitidine maintenance therapy was administered to the MRD-positive CBF-AML patient.
- This maintenance therapy successfully eradicated minimal residual disease (MRD) in the patient.
Implications:
- The findings suggest that azacitidine maintenance therapy could be a viable strategy for eradicating MRD in CBF-AML.
- This approach may offer an alternative to more aggressive preemptive interventions like stem cell transplantation or intensive chemotherapy.
- Further research into hypomethylating agents for maintenance therapy in CBF-AML is warranted to validate these findings.
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