* Patient must be ≥ 18 and ≤ 59 years of age.
* Patient must have ECOG performance status 0-2
* Patient must have morphologically documented AML or secondary AML [from prior conditions such as myelodysplastic syndrome (MDS), myeloproliferative neoplasm (MPN)] or therapy related AML (t-AML), as defined by World Health Organization (WHO) criteria
* Patient must have completed induction chemotherapy in a myeloMATCH Young Adult Tier-1 protocol. Patient may have received prior hypomethylating agents (HMAs). Patient may have received prior azacitidine + venetoclax.
* Patient must have been assigned to this protocol by myeloMATCH MSRP/MATCHBOX/. Patients thereby assigned will have attained complete remission (CR) or CR with partial hematologic recovery (CRh) (defined as CR with (ANC) ≥ 500/mcL and/or platelets > 50/mcL) with detectable MRD at time of assignment. MRD is defined as >0.1% flow cytometry on bone marrow (BM) biopsy as assessed by MDNet. The definition of CR or CRh may be made ± 2 weeks from BM biopsy
* Patient must have the ability to understand and the willingness to sign a written informed consent document. Patients with impaired decision-making capacity (IDMC) who have a legally authorized representative (LAR) or caregiver and/or family member available will also be considered eligible.
* Patient must have recovered (i.e.: resolved to < grade 2) from adverse events related to prior anti-cancer therapy at the time of randomization with the exception of alopecia
* Patient must have adequate organ and marrow function as defined below (these labs must be obtained ≤ 7 days prior to protocol randomization):
Absolute neutrophil count (ANC) ≥ 500/mcL ANC:__________ Date of Test:__________ Platelets ≥ 50,000/mcL Platelets:__________ Date of Test:__________ Total bilirubin ≤ 2 x institutional upper limit of normal (ULN) Total Bilirubin:__________ Institutional ULN:_________ Date of Test:__________ AST(SGOT)/ALT(SGPT) ≤ 3.0 × institutional ULN AST:_______ Institutional ULN:_________ Date of Test:_______ ALT: _______Institutional ULN:_________ Creatinine ≤ 1.5 x institutional ULN Creatinine ______________Date of Test:________ OR
* Human immunodeficiency virus (HIV)-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months of randomization are eligible for this trial.
* For patients with evidence of chronic hepatitis B virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated.
* Patients with a history of hepatitis C virus (HCV) infection must have been treated and cured. For patients with HCV infection who are currently on treatment, they are eligible if they have an undetectable HCV viral load
* Patients with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this trial.
* Patients must be able to swallow oral tablets and be free of GI absorption issues.