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Active, not recruitingNCT04730258TWT-202Updated May 18, 2025

A Study of CFI-400945 With or Without Azacitidine in Patients With AML, MDS or CMML

A Phase 1/2 interventional study of CFI-400945 and Azacitidine in Acute Myeloid Leukemia, Myelodysplastic Syndromes and Chronic Myelomonocytic Leukemia, sponsored by Treadwell Therapeutics, Inc. Active, not recruiting at 9 sites in 3 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-05-18.

Sponsored by Treadwell Therapeutics, Inc · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jan 2026, 9 months ago, but the record still lists the study as active, not recruiting.
Phase
Phase 1/2
Study type
Interventional
Enrollment
72
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
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Study summary

The purpose of this study is to test the safety of an investigational drug called CFI-400945 alone and in combination with azacitidine.

Read the detailed description

This study will be evaluating the safety and tolerability of CFI-400945 in subjects with Acute Myeloid Leukemia, Myelodysplastic Syndrome or Chronic Myelomonocytic Leukemia. The study is designed to build on encouraging data from another study and to obtain further safety, efficacy, pharmacokinetics (PK) and pharmacodynamics (PD) data of CFI-400945.

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Conditions studied

  • Acute Myeloid Leukemia
  • Myelodysplastic Syndromes
  • Chronic Myelomonocytic Leukemia
  • AML
  • MDS
  • CMML

Keywords

  • Polo-like kinase 4
  • PLK4
  • serine/threonine kinase Polo-like kinase 4
  • CFI-400945
  • 945
  • Polo-Like Kinase 4 inhibitors/antagonists
  • hematologic malignancies
  • PLK-4
  • UHN
  • University Health Network
  • Treadwell
  • Treadwell Therapeutics
  • Treadwell Tx
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In context

Leukemia

5,441 studies on the registry are indexed under Leukemia; 636 are open to participants now.

This study's planned enrollment of 72 is above the median of 38 across 4,247 interventional studies indexed under Leukemia.

Browse Leukemia studies →

Lead sponsor

Treadwell Therapeutics, Inc is the lead sponsor of 3 studies on the registry; none are open to participants now.

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

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Who can participate

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

Inclusion criteria

  1. Patients must be >18 years of age
  2. For Parts 1A and 1B, the following malignancy types will be included:

    1. Relapsed or refractory AML.
    2. MDS, after prior hypomethylating agents.
    3. CMML, with progressive disease/lack of response after hypomethylating agents

    For Parts 1A and 1B, Patients may have relapsed or refractory disease.

  3. For Parts 2A and 2B, the following malignancy types will be included:

    1. Relapsed or Refractory AML.
    2. MDS patients should be limited to high risk disease
    3. MDS or CMML should be previously untreated and patients with AML may have relapsed or refractory disease;
  4. Have clinically acceptable laboratory screening results (i.e., clinical chemistry, hematology, and urinalysis) within certain limits per protocol.
  5. Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.

Exclusion criteria

Exclusion Criteria:

  1. Patients who have received investigational therapy, radiotherapy, immunotherapy, monoclonal antibodies, or chemotherapy within 14 days or 5 half-lives (whichever is shorter)
  2. Allogeneic or autologous transplant for AML with infusion of stem cells within 90 days before Cycle 1 Day 1, or on active immunosuppressive therapy for graft-versus-host disease (GVHD) or GVHD prophylaxis within 2 weeks of Cycle 1 Day 1.
  3. Any Grade ≥ 2 persistent non-hematological toxicity related to allogeneic transplant, such as those requiring systemic immunosuppressive therapy.
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Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
72 participants (estimated)

Study arms

  • Experimental
    1A: Monotherapy escalation and expansion

    Dose escalation and expansion arm with CFI-400945

    Drug: CFI-400945

  • Experimental
    2A: Combination escalation and expansion

    Dose escalation and expansion arm with CFI-400945 and azacitidine

    Drug: CFI-400945 · Drug: Azacitidine

Interventions

  • DrugCFI-400945

    The starting dose is 32 mg/day for escalation arms and the recommended starting dose for the expansion arms.

    Also known as: CFI-400945 fumarate, 945, 400945

  • DrugAzacitidine

    Azacitidine will be given at its labeled dose and schedule

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What researchers measure

Primary outcomes

  1. Incidence of treatment emergent AEs

    The number of subjects who experience an adverse event that was possibly related to study drug

    Time frame: 36 months

  2. Treatment emergent changes in vital signs

    The number of subjects who experience changes in blood pressure, heart rate, respiratory rate, body temperature that was possibly related to study drug.

    Time frame: 36 months

  3. Treatment emergent changes in clinical laboratory tests

    The number of subjects who experience a change in laboratory parameters that was possibly related to study drug.

    Time frame: 36 months

  4. Treatment emergent changes in physical examinations, ECOG performance status, electrocardiograms (ECGs), echocardiograms and cardiac troponins

    The number of subjects who experience changes in physical examinations, performance status, ECG, troponins that were possibly related to study drug.

    Time frame: 36 months

Secondary outcomes

  1. Composite Complete Remission Rate, CRc (complete remission + complete remission with incomplete blood count recovery + complete remission with incomplete platelet count recovery [CR + CRi + CRp])

    Response rate will be summarized by dose cohort and overall using the percent of patients in patient with AML

    Time frame: 36 months

  2. Overall response rate (ORR, defined as Complete remission + Marrow CR + Partial remission + Hematologic Improvement (CR + mCR+ PR + HI)

    Response rate will be summarized by dose cohort and overall using the percent of patients in patients with MDS, CMML

    Time frame: 36 months

  3. The pharmacokinetics of CFI-400945 will be assessed through AUC.

    Area under the plasma concentration (AUC) versus time curve from time 0 to time of least measurable concentration tabulated by dose group.

    Time frame: 36 months

  4. To assess the pharmacokinetic profile of CFI-400945 through Cmax.

    Cmax will be assessed through the maximum measured plasma concentration occurring at Tmax tabulated by dose group.

    Time frame: 36 months

  5. To assess the pharmacokinetic profile of CFI-400945 through T1/2.

    Elimination half life will be calculated and tabulated by dose group.

    Time frame: 36 months

07

Study locations

9 sites
  • City of Hope
    Duarte, California 91010, United States
  • University of California Davis Comprehensive Cancer Center
    Sacramento, California 95817, United States
  • Norton Cancer Institute - Saint Matthews
    Louisville, Kentucky 40207, United States
  • New York Presbyterian Weill Cornell Medical Center
    New York, New York 10021, United States
  • The Ohio State University Comprehensive Cancer Center
    Columbus, Ohio 43210, United States
  • The University of Texas MD Anderson Cancer Centre
    Houston, Texas 77030, United States
  • University of Alberta
    Edmonton, Alberta T6G2B7, Canada
  • Princess Margaret Cancer Center
    Toronto, Ontario M5G2C1, Canada
  • Queen Mary Hospital
    Hong Kong, Hong Kong
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References and documents

Individual participant data

Plan to share: No — It is too early to determine whether we will make IPD available - we do not yet have a process written on this. Field will be updated once our policy / process is written.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 18, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04730258
Lead sponsor
Treadwell Therapeutics, Inc
Responsible party
Sponsor
First posted
Jan 29, 2021
Start date
Apr 16, 2021
Primary completion
Jan 2026 (estimated)
Completion
Jan 2026 (estimated)
Last update
May 18, 2025

Study contacts

Gautam Borthakur, MD
principal investigator · The University of Texas MD Anderson Cancer Centre

Oversight

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

Not currently enrolling

This study is active, not recruiting, as verified in May 2025. You cannot join it, but the record below documents what was studied.

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