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NCT Number: NCT06001788

Safety and Tolerability of Ziftomenib Combinations in Patients With Relapsed/Refractory Acute Myeloid Leukemia

The safety, tolerability, and antileukemic response of ziftomenib in combination with standard of care treatments for patients with relapsed/refractory acute myeloid leukemia will be examined with the following agents: FLAG-IDA, low-dose cytarabine, and gilteritinib.

Recruiting

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

IRCCS Azienda Ospedaliero-Universitaria do Bologna - Policlinico di Sant'Orsola, Bologna, Italy

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Key Inclusion Criteria:

  • Has been diagnosed with relapsed/refractory AML.
  • Has a documented NPM1 mutation or KMT2A rearrangement.
  • Has a documented FLT3 mutation (cA-3 only).
  • Has an Eastern Cooperative Oncology Group (ECOG) Performance status ≤ 2.
  • Has adequate hepatic and renal function as defined per protocol.
  • Has an ejection fraction above a protocol defined limit.
  • Participant, or legally authorized representative, must be able to understand and provide written informed consent prior to the first screening procedure.
  • Has agreed to use contraception as defined per protocol.

Key Exclusion Criteria:

  • Has a diagnosis of acute promyelocytic leukemia or blast chronic myeloid leukemia.
  • Has clinically active central nervous system leukemia.
  • Has an active and uncontrolled infection.
  • Has a mean corrected QT interval (QTcF) > 480ms.
  • Has uncontrolled intercurrent illness, including, but not limited to protocol defined cardiac disease.
  • Has received radiation, chemotherapy, immunotherapy, or any other anticancer therapy including investigational therapy <14 days or within 5 drug half-lives prior to the first dose of study intervention.
  • Has had major surgery within 4 weeks prior to the first dose of study intervention.
  • Has received a hematopoietic stem cell transplant (HSCT) and has not previously had adequate recovery per protocol defined criteria.
  • Has active graft-versus-host disease (GvHD) and or on immunosuppressive drugs for the treatment of GvHD
  • Participant is pregnant or lactating.

Treatment and study plan

Ziftomenib

Drug

Oral administration

Other names: KO-539

Fludarabine

Drug

Intravenous infusion

Idarubicin

Drug

Intravenous infusion

Cytarabine

Drug

Intravenous Infusion

Gilteritinib

Drug

Oral administration

Other names: Xospata

Granulocyte Colony-Stimulating Factor

Biological

Subcutaneous injection

Primary outcomes

  1. Rate of dose limiting toxicities (DLTs) per dose level

    Time frame: During the first 28 days of ziftomenib in combination with SOC treatment (1 cycle)

    Assessed by the NCI-CTCAE v5.0

  2. Descriptive statistics of adverse events

    Time frame: First dose of ziftomenib up to and including 28 days after last dose of ziftomenib, or if the patient is lost to follow-up, whichever comes first

    Assessed by the NCI-CTCAE v5.0

Secondary outcomes

  1. Complete remission (CR) rate for cohorts A-1, A-2, B-1, and B-2

    Time frame: Up to 12 months following discontinuation of treatment

    Assessed by ELN 2022 criteria

  2. Complete remission (CR) / Complete remission with partial hematologic recovery (CRh) rate for cohort A-3

    Time frame: Up to 12 months following discontinuation of treatment

    Assessed by ELN 2022 criteria

  3. Composite complete remission (CRc) rate

    Time frame: Up to 12 months following discontinuation of treatment

    Assessed by ELN 2022 criteria

  4. Morphologic leukemia-free state (MLFS) rate

    Time frame: Up to 12 months following discontinuation of treatment

    Assessed by ELN 2022 criteria

  5. OS

    Time frame: Up to 12 months following discontinuation of treatment

    To assess overall survival

  6. 6-month OS

    Time frame: Up to 6 months following discontinuation of treatment

    To assess proportion of patients alive at 6 months

  7. Median EFS

    Time frame: Up to 12 months following discontinuation of treatment

    To assess median event free survival

  8. 6-month EFS

    Time frame: Up to 6 months following discontinuation of treatment

    To assess 6-month event free survival

  9. DOR

    Time frame: Up to 12 months following discontinuation of treatment

    To assess duration of remission

  10. MRD assessment

    Time frame: Up to 12 months following discontinuation of treatment

    To assess minimum residual disease in bone marrow as assessed by multiparameter flow cytometry (MFC) and molecular analysis

  11. HSCT

    Time frame: Up to 12 months following discontinuation of treatment

    To assess proportion of patients that undergo a hematopoietic stem-cell transplant

  12. Transfusion independence

    Time frame: Up to 12 months following discontinuation of treatment

    To assess rate of transfusion independence

  13. Ziftomenib Cmax

    Time frame: Cycle 1 (Each cycle is 28 days)

    To assess the maximum plasma combination of ziftomenib and its metabolites

  14. Ziftomenib Tmax

    Time frame: Cycle 1 (Each cycle is 28 days)

    To assess the time to observed maximum plasma concentration of ziftomenib and its metabolites

  15. Ziftomenib AUC(0-last)

    Time frame: Cycle 1 (Each cycle is 28 days)

    To assess the area under the plasma concentration-time-curve from time 0 to time of last measurable concentration of ziftomenib and its metabolites

  16. Ziftomenib AUC(tau)

    Time frame: Cycle 1 (Each cycle is 28 days)

    To assess the area under the plasma concentration-time-curve over a dosing interval for ziftomenib and its metabolites

  17. Gilteritinib Cmax

    Time frame: Cycle 1 (Each cycle is 28 days)

    To assess the maximum plasma combination of gilteritinib

  18. Gilteritinib Tmax

    Time frame: Cycle 1 (Each cycle is 28 days)

    To assess the time to observed maximum plasma concentration of gilteritinib

  19. Gilteritinib AUC(0-last)

    Time frame: Cycle 1 (Each cycle is 28 days)

    To assess the area under the plasma concentration-time-curve from time 0 to time of last measurable concentration of gilteritinib

  20. Gilteritinib AUC(tau)

    Time frame: Cycle 1 (Each cycle is 28 days)

    To assess the area under the plasma concentration-time-curve over a dosing interval for gilteritinib

Study contacts

Contact information is provided by the study sponsor or research team.

Kura Medical Information

CONTACT

[email protected]

844-KURAONC (844-587-2662)

Sponsors and collaborators

Lead sponsor

Kura Oncology, Inc.

Industry

Registry information

Official study title

Phase 1 Study to Determine the Safety and Tolerability of Ziftomenib Combinations for the Treatment of KMT2A-rearranged or NPM1-mutant Relapsed/Refractory Acute Myeloid Leukemia

Important dates

Study start
2024
Primary completion
2026
Study completion
2027
First posted
Aug 21, 2023
Registry last updated
Apr 14, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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