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RecruitingNCT04797767Updated Apr 17, 2026

Venetoclax and CLAG-M for the Treatment of Acute Myeloid Leukemia and High-Grade Myeloid Neoplasms

A Phase 1/2 interventional study of Cladribine and Cytarabine in Acute Biphenotypic Leukemia, Acute Myeloid Leukemia and Mixed Phenotype Acute Leukemia, sponsored by University of Washington. Recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-04-17.

Sponsored by University of Washington · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Started Feb 2022; still recruiting 4 years 8 months later.
Phase
Phase 1/2
Study type
Interventional
Enrollment
62
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

This phase I/II trial finds the best dose, side effects and how well giving venetoclax in combination with cladribine, cytarabine, granulocyte colony-stimulating factor, and mitoxantrone (CLAG-M) in treating patients with acute myeloid leukemia and high-grade myeloid neoplasms. Venetoclax may stop the growth of cancer cells by blocking Bcl-2, a protein needed for cancer cell survival. Chemotherapy drugs, such as cladribine, cytarabine, and mitoxantrone, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving venetoclax with CLAG-M may kill more cancer cells.

Read the detailed description

OUTLINE:

This is a dose-escalation study of venetoclax.

Patients will receive induction with granulocyte colony-stimulating factor subcutaneously (SC) on days 0-5 (if peripheral white blood cell count is less than 20,000/uL), cladribine intravenously (IV) on days 1-5, cytarabine IV on days 1-5, and mitoxantrone IV on days 1-3. Patients also receive venetoclax orally (PO) on days 1-14. Treatment repeats every 28-35 days for up to 2 induction cycles including mitoxantrone, and up to 4 consolidation cycles without mitoxantrone in the absence of disease progression or unacceptable toxicity. Patients undergo bone marrow biopsy and/or aspiration, and blood sample collection throughout the study.

After completion of study treatment, patients are followed up every 3 months for 12 months.

02

Conditions studied

  • Acute Biphenotypic Leukemia
  • Acute Myeloid Leukemia
  • Mixed Phenotype Acute Leukemia
  • Myeloid Neoplasm
  • Relapsed Acute Biphenotypic Leukemia
  • Relapsed Acute Myeloid Leukemia
  • Relapsed Mixed Phenotype Acute Leukemia
  • Relapsed Myeloid Neoplasm
  • Refractory Acute Biphenotypic Leukemia
  • Refractory Acute Myeloid Leukemia
  • Refractory Mixed Phenotype Acute Leukemia
  • Refractory Myeloid Neoplasm
  • Recurrent Myeloid Sarcoma
03

In context

Leukemia, Biphenotypic, Acute

110 studies on the registry are indexed under Leukemia, Biphenotypic, Acute; 51 are open to participants now.

This study's planned enrollment of 62 is above the median of 50 across 98 interventional studies indexed under Leukemia, Biphenotypic, Acute.

Browse Leukemia, Biphenotypic, Acute studies →

Lead sponsor

University of Washington is the lead sponsor of 1,397 studies on the registry; 225 are open to participants now.

Of its 154 completed or terminated interventional studies of FDA-regulated products, 132 (86%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Diagnosis of acute myeloid leukemia (per the World Health Organization [WHO] 2016 classification) or high-grade myeloid neoplasm (>= 10% myeloid blasts in peripheral blood or marrow as assessed by morphology or multiparameter flow cytometry at initial presentation). Patients with biphenotypic or mixed phenotype acute leukemia are eligible.
  • PHASE I:

    • Newly diagnosed patients presenting for trial entry must have adverse risk disease as per the European LeukemiaNet 2017 guidelines
    • Relapsed/refractory patients presenting for trial entry must require first or subsequent salvage therapy and have detectable blasts in peripheral blood or >= 5% blasts in bone marrow, as assessed by morphology or multiparameter flow cytometry; or extramedullary myeloid sarcoma, per European LeukemiaNet 2017 guidelines.
    • These patients are only allowed in the phase 1 portion of the trial
  • PHASE II: Newly diagnosed patients presenting for trial entry must have adverse risk disease as per the European LeukemiaNet 2022 guidelines
  • Age >= 18 years
  • Aspartate transaminase (AST) and alanine transaminase (ALT) =\< 3.0 X upper limit of normal (ULN)
  • Bilirubin =\< 1.5 x ULN (unless bilirubin rise is due to Gilbert's syndrome or of non-hepatic origin)
  • Subject must have adequate renal function as demonstrated by a creatinine clearance >= 30 mL/min; calculated by the Cockcroft Gault formula or measured by 24 hours urine collection
  • Left ventricular ejection fraction (LVEF) >= 45%, assessed by multigated acquisition (MUGA) or echocardiogram (ECHO) within 3 months prior to study day 0 or after most recent anthracycline administration if appropriate and no clinical evidence of congestive heart failure
  • Eastern Cooperative Oncology Group (ECOG) =\< 2
  • Treatment-related mortality (TRM) score \< 13.1
  • Female subjects of childbearing potential must have negative results for pregnancy test. Female subjects of childbearing potential and male subjects with female partners of childbearing potential must agree to use an effective method of birth control from the time of signing the consent form until at least 3 months after the last dose of study drug
  • Ability to understand and the willingness to sign a written informed consent document
  • White blood cell count in peripheral blood must be \< 25,000/ul prior to initiation of study therapy (CLAG-M plus venetoclax). Cytoreduction with hydroxyurea and/or cytarabine (e.g., 500 mg/m\^2 per dose) is allowed to decrease the risk of tumor lysis syndrome

Exclusion criteria

Exclusion Criteria:

  • Acute promyelocytic leukemia or chronic myeloid leukemia in myeloid blast crisis
  • Known active central nervous system (CNS) involvement with acute myeloid leukemia (AML)
  • Concomitant illness associated with a likely survival of \< 1 year
  • Active systemic infection, unless disease is under treatment with antimicrobials and considered controlled or stable; patients with fever thought to be likely secondary to leukemia are eligible. Patients with chronic hepatitis B virus (HBV) or hepatitis C (HCV) requiring treatment would be excluded. Note: subjects with serologic evidence of prior vaccination to HBV (i.e. hepatitis B surface [HBs] antigen negative-, anti-HBs antibody positive and anti-hepatitis B core [HBc] antibody negative) or positive anti-HBc antibody from intravenous immunoglobulins (IVIG) may participate
  • Known hypersensitivity to any study drug
  • Pregnancy or lactation because of the unknown risks of this combination
  • Concurrent treatment with any other investigational agent
  • Subject is known to be positive for human immunodeficiency virus (HIV)
  • Subjects who cannot discontinue concomitant CYP3A inhibitors, except for voriconazole, prior to cycle 1 day 1 (C1D1)
  • Treatment with any of the following within 7 days prior to the first dose of venetoclax

    • Steroid therapy for anti-neoplastic intent
  • Administration or consumption of any of the following within 3 days prior to the first dose of venetoclax:

    • Grapefruit or grapefruit products
    • Seville oranges (including marmalade containing Seville oranges)
    • Star fruit
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
62 participants (estimated)

Study arms

  • Experimental
    Treatment (CLAG-M, venetoclax)

    Patients will receive induction with granulocyte colony-stimulating factor on days 0-5 (if peripheral white blood cell count is less than 20,000/uL), cladribine on days 1-5, cytarabine on 1-5, and mitoxantrone on days 1-3. Patients also receive venetoclax orally (PO) on days 1-14. Treatment repeats every 28-35 days for up to 2 induction cycles including mitoxantrone, and up to 4 consolidation cycles without mitoxantrone in the absence of disease progression or unacceptable toxicity. Patients undergo bone marrow biopsy and/or aspiration, and blood sample collection throughout the study.

    Drug: Cladribine · Drug: Cytarabine · Drug: Mitoxantrone · Biological: Recombinant Granulocyte Colony-Stimulating Factor · Drug: Venetoclax · Procedure: Bone Marrow Aspiration · Procedure: Bone Marrow Biopsy · Procedure: Biospecimen Collection

Interventions

  • DrugCladribine

    Given IV

    Also known as: 2-CdA, 2CDA, CdA, Cladribina, Leustat, Leustatin, Leustatine, RWJ-26251

  • DrugCytarabine

    Given IV

    Also known as: .beta.-Cytosine arabinoside, 1-.beta.-D-Arabinofuranosyl-4-amino-2(1H)pyrimidinone, 1-.beta.-D-Arabinofuranosylcytosine, 1-Beta-D-arabinofuranosyl-4-amino-2(1H)pyrimidinone, 1-Beta-D-arabinofuranosylcytosine, 1.beta.-D-Arabinofuranosylcytosine, 2(1H)-Pyrimidinone, 4-Amino-1-beta-D-arabinofuranosyl-, 2(1H)-Pyrimidinone, 4-amino-1.beta.-D-arabinofuranosyl-, Alexan, Ara-C, ARA-cell, Arabine, Arabinofuranosylcytosine, Arabinosylcytosine, Aracytidine, Aracytin, Aracytine, Beta-Cytosine Arabinoside, CHX-3311, Cytarabinum, Cytarbel, Cytosar, Cytosine Arabinoside, Cytosine-.beta.-arabinoside, Cytosine-beta-arabinoside, Erpalfa, Starasid, Tarabine PFS, U 19920, U-19920, Udicil, WR-28453

  • DrugMitoxantrone

    Given IV

    Also known as: Dihydroxyanthracenedione, Mitozantrone

  • BiologicalRecombinant Granulocyte Colony-Stimulating Factor

    Given subcutaneously

    Also known as: Recombinant Colony-Stimulating Factor 3, rhG-CSF

  • DrugVenetoclax

    Given PO

    Also known as: ABT-0199, ABT-199, ABT199, GDC-0199, RG7601, Venclexta, Venclyxto

  • ProcedureBone Marrow Aspiration

    Undergo bone marrow aspiration

  • ProcedureBone Marrow Biopsy

    Undergo bone marrow biopsy

  • ProcedureBiospecimen Collection

    Undergo blood sample collection

    Also known as: Biological Sample Collection

06

What researchers measure

Primary outcomes

  1. Incidence of adverse events (Phase I)

    Time frame: Up to 12 months

  2. Maximum tolerated dose of venetoclax in combination with CLAG-M (Phase I)

    Time frame: Up to 12 months

  3. Event free survival (Phase II)

    Time frame: At 6 months

Secondary outcomes

  1. Complete remission rate

    Time frame: After 2 cycles (each cycle is approximately 35 days)

  2. Rate of minimal residual disease negativity

    Time frame: Up to 1 year

  3. Rate of allogeneic hematopoietic cell transplant

    Time frame: At 1 year

  4. Overall survival

    Time frame: At 1 year

07

Study locations

1 of 1 sites recruiting
  • Fred Hutch/University of Washington Cancer Consortium
    Seattle, Washington 98109, United States
    Recruiting
08

References and documents

Publications

  • Raychaudhuri S, Gooley TA, Rasmussen A, Quach K, Gill E, Halpern AB, Appelbaum JS, Ghiuzeli CM, Hendrie PC, Cassaday RD, Walter RB, Percival MM. Phase 1 trial of venetoclax with cladribine, cytarabine, G-CSF, and mitoxantrone for AML and high-grade myeloid neoplasm. Blood Neoplasia. 2025 Mar 3;2(3):100085. doi: 10.1016/j.bneo.2025.100085. eCollection 2025 Aug. PubMed 40535475 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 17, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04797767
Lead sponsor
University of Washington
Collaborators
AbbVie
Responsible party
Sponsor
First posted
Mar 15, 2021
Start date
Feb 4, 2022
Primary completion
Dec 31, 2027 (estimated)
Completion
Dec 31, 2028 (estimated)
Last update
Apr 17, 2026

Study contacts

Kim Quach
Contact
kquach@fredhutch.org
206.606.8311
Mary-Beth M. Percival
Contact
mperciva@fredhutch.org
206.606.1320
Mary-Beth M. Percival
principal investigator · Fred Hutch/University of Washington Cancer Consortium

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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