Ziftomenib in Combination With Chemotherapy for Children With Relapsed/Refractory Acute Leukemia
NCT ID: NCT06376162
Last Updated: 2025-10-20
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
PHASE1
20 participants
INTERVENTIONAL
2025-03-18
2027-01-31
Brief Summary
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Detailed Description
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Conditions
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Study Design
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NA
SINGLE_GROUP
TREATMENT
NONE
Study Groups
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Ziftomenib
During Cycle 1 (49 days), participants will receive escalating doses of ziftomenib once daily (QD) on Days 8 to 49. Participants will also receive FLA chemotherapy consisting of fludarabine at a dose of 30 mg/m\^2 (1 mg/kg/dose in infants \<1 year of age or ≤10 kg) and cytarabine at a dose of 2000 mg/m\^2 (67 mg/kg/dose in infants \<1 year of age or ≤10 kg) QD on Day 1 to Day 5.
Participants with \<5% blasts will continue ziftomenib monotherapy until Day 49. Participants with a response and \>5% blasts will continue to Cycle 2. During Cycle 2 (28 days), participants will receive escalating doses of ziftomenib QD on Day 1 to Day 28 in combination with FLA chemotherapy on Day 1 to Day 5.
Participants who respond to treatment, but experience a delay prior to hematopoietic stem cell transplantation (HSCT), may receive up to 10 additional cycles (28 days) of ziftomenib monotherapy.
Participants may also receive intrathecal therapy prophylaxis, if needed, during all cycles.
Ziftomenib
Oral capsule
Cytarabine
Intravenous (IV) infusion
Fludarabine
IV infusion
Interventions
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Ziftomenib
Oral capsule
Cytarabine
Intravenous (IV) infusion
Fludarabine
IV infusion
Eligibility Criteria
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Inclusion Criteria
* Diagnosis: KMT2A-r, NPM1-m, or NUP98-r acute leukemia in first or greater relapse or refractory to standard (re-) induction treatment (including HSCT). Please note that genetic alteration must be confirmed by the central laboratory, or the participant will discontinue protocol therapy.
* Eligible participants also must fulfill one of the following conditions:
1. Bone marrow relapse is defined as:
1. A single bone marrow sample showing ≥ 5% leukemic blasts by flow cytometry, fluorescence in situ hybridization (FISH) testing, or other molecular method.
* a single bone marrow sample with at least two tests showing ≥ 1% leukemic blasts, examples of tests (confirmed by central lab) include: Flow cytometry showing leukemia ≥ 1% by multiparameter flow cytometry (MFC) confirmed by central lab.
* Karyotypic abnormality as confirmed by central cytogenetic review.
* FISH abnormality identical to one present at diagnosis (must be above level of sensitivity of specific FISH probe; central cytogenetic review required).
* Polymerase chain reaction (PCR) or next generation sequencing (NGS)-based demonstration of validated leukemogenic lesion (e.g., fusion, mutation) in a Clinical Laboratory Improvement Amendments (CLIA)-approved laboratory that matches initial diagnosis and is quantifiable as ≥1% confirmed by central lab.
2. Participants with combined extramedullary and bone marrow relapse (defined as above) are eligible.
3. Participants with isolated extramedullary disease (EMD) are not eligible. EMD relapse is defined as biopsy-proven extramedullary disease without bone marrow disease after documented complete response (CR) following initial therapy. Participants with isolated central nervous system (CNS) relapse are not eligible. Participants with a combined medullary/extramedullary relapse, including CNS disease, are eligible.
4. Participants with asymptomatic CNS3 disease are eligible if they do not have isolated CNS3 extramedullary relapse.
5. For participants unable to undergo bone marrow assessment, a peripheral blood absolute blast count ≥ 1,000 cell/microliter is sufficient to diagnose relapsed or refractory disease and facilitate confirmation of required genetic alterations for protocol therapy.
2. Refractory disease/induction failure:
1. Acute myeloid leukemia (AML): The bone marrow contains ≥ 1% leukemic blasts by MFC at the end of 2 cycles of induction therapy.
2. Acute lymphoblastic leukemia (ALL)/mixed-phenotype acute leukemia (MPAL)/acute undifferentiated leukemia (AUL): The bone marrow contains ≥ 1% leukemic blasts by MFC at the end of induction and consolidation, or persistent MRD prior HSCT (defined as \> 0.01%).
3. For participants unable to have bone marrow assessed, a peripheral blood absolute blast count ≥ 1,000 cell/microliter is sufficient to diagnose relapsed or refractory disease.
3. Molecular refractory disease in infant ALL, defined as MRD \>0.05% after primary induction and consolidation therapy measured by MFC or PCR.
* Performance status: Participants must have a performance status corresponding to Eastern Cooperative Oncology Group (ECOG) scores of 0, 1 or 2 (≥ 50% Lansky or Karnofsky score). Use ECOG for adult participants (≥18 to 21 years), Karnofsky for participants ≥16 to 18 years of age, and Lansky for participants \< 16 years of age. Participants who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score.
* Adequate organ function:
1. Renal function defined as: Creatinine clearance (CrCl) ≥60 mL/min (as measured by a nuclear glomerular filtration rate \[GFR\] scan or calculated by the Schwartz formula and normalized to a body surface area of 1.73 m\^2).
2. Liver function defined as:
1. Direct bilirubin \< 3 x upper limit of normal (ULN) and Serum glutamic pyruvic transaminase (SGPT) (alanine transaminase \[ALT\]) ≤ 5 x ULN.
2. If liver abnormality is due to radiographically identifiable leukemia infiltrate, the participant will remain eligible.
3. Cardiac function defined as: Pre-treatment left ventricular function on echocardiography: Fractional shortening (FS) ≥ 25% or ejection fraction (EF) ≥ 40%, and no signs of congestive heart failure within 4 weeks before start of screening.
* Prior therapy: Participants must have recovered from the acute toxic effects of all prior anti-cancer therapy (excluding Grade 2 toxicities that are not considered a safety risk or medically significant toxicity deemed irreversible by the Investigator) and must meet the following minimum duration from prior anti-cancer directed therapy prior to enrollment.
1. Cytotoxic chemotherapy: Must not have received within 14 days or within 5 drug half-lives (whichever is longer), of entry onto this study, except for hydroxyurea or corticosteroids. Use of steroids and hydroxyurea for other purposes such as differentiation syndrome, or to premedication to prevent allergic reaction or during anesthesia is allowed.
2. Intrathecal cytotoxic therapy: No washout or waiting period is required for participants having received any combination of intrathecal cytarabine, methotrexate, and/or hydrocortisone.
3. Antibodies: ≥ 21 days must have elapsed from infusion of last dose of an antibody-drug conjugate. For unmodified antibodies or T cell engaging antibodies, 2 half-lives must have elapsed before enrollment. Any toxicity related to prior antibody therapy must be recovered back to baseline.
4. Interleukins, interferons and cytokines (other than hematopoietic growth factors): ≥ 21 days after the completion of interleukins, interferon or cytokines (other than hematopoietic growth factors).
5. Hematopoietic growth factors: ≥ 14 days after the last dose of a long-acting growth factor (e.g., peg-filgrastim) or 7 days for short-acting growth factor.
6. Radiation therapy (RT): 14 days have elapsed for local palliative RT (small port); ≥ 84 days must have elapsed if prior craniospinal RT or if ≥ 50% radiation of pelvis; ≥ 42 days must have elapsed if other substantial bone marrow (BM) radiation.
7. Stem cell infusions:
1. Participants who have relapsed after allogeneic (non-autologous) BM or stem cell transplant (with or without total body irradiation \[TBI\]) or boost infusion (any stem cell product; not including donor lymphocyte infusion \[DLI\]) must be at least 84 days post HSCT and without evidence of graft versus host disease (GVHD) of any severity except: the use of topical steroids for cutaneous GVHD is allowed and stable steroid doses less than or equal to 10 mg of prednisone daily is permitted. Prednisone dose must be adjusted for body surface area (BSA) in young children. Physiologic doses of hydrocortisone for participants with adrenal insufficiency is allowed.
2. Participants who after relapse and continue to receive cyclosporine, tacrolimus or other agents to treat or prevent either GVHD post BM transplant or organ rejection post-transplant are not eligible for this trial. In the relapse setting, participants must be off medications to treat or prevent either GVHD post BM transplant or organ rejection post-transplant for at least 14 days prior to enrollment. A stable steroid dose as mentioned above is allowed.
8. Cellular therapy: ≥ 30 days after the completion of DLI or any type of cellular Therapy (e.g., modified T cells, NK cells, dendritic cells, etc.).
* Informed consent: Written, signed and dated informed consent and pediatric assent (if applicable) according to local law and legislation should be collected before start of any study procedures.
* Female participants of childbearing potential must have a negative urine or serum pregnancy test confirmed prior to enrollment.
* Female participants with infants must agree not to breastfeed their infants while on this study.
* Contraception:
1. Participants of reproductive potential, starting from menarche and onwards, may not participate unless they have agreed to use a highly effective contraceptive method per Clinical Trial Facilitation Group (CTFG) guidelines for the duration of study therapy and for 6 months after the completion of all study therapy. For further guidance please review the CTFG website.
2. Male participants must use a condom during intercourse and agree not to father a child or donate sperm during therapy and for the duration of study therapy and for 4 months after the completion of all study therapy.
* Enrollment APAL2020SC trial (US and Canada only): Participants in the US and Canada must have enrolled in the APAL2020SC trial prior to enrollment in the APAL2020K trial.
Exclusion Criteria
* Participants with Down syndrome.
* Participants with EMD are not eligible. EMD relapse is defined as biopsy proven extramedullary disease without bone marrow disease after documented CR following initial therapy.
* Participants with isolated CNS relapse are not eligible, as well as symptomatic CNS3 disease.
* Participants with acute promyelocytic leukemia (APL) or juvenile myelomonocytic leukemia (JMML).
* Participants with malabsorption syndrome or any other condition that precludes enteral administration of a menin inhibitor.
* Concomitant therapy: Gastric pH has great influence on absorption of ziftomenib; therefore, the use of proton pump inhibitors is prohibited, if necessary H2 Blockers may provide an alternative treatment option.
* Participants who are currently receiving another investigational drug.
* Participants with any known congenital bone marrow failure syndrome.
* Participants with known prior allergy to any of the medications used in protocol therapy.
* Participants with documented active, uncontrolled infection at the time of study entry.
* Active/uncontrolled known human immunodeficiency virus (HIV) infection, hepatitis B virus (HBV) and hepatitis C virus (HCV). Note: HIV testing does not need to be conducted at screening unless it is required per local guidelines or institutional standard.
* Post menarche female participants with positive pregnancy test, and a lactating female participant.
* Participant has a pre-existing disorder predisposing the participant to a serious or life-threatening infection (e.g., cystic fibrosis, congenital or acquired immunodeficiency, bleeding disorder, or cytopenia not related to the leukemia or its treatment).
* Participants must not be receiving other investigational medications (defined as medicinal products not yet approved for any indications, including alternative/herbal therapies) within 30 days of first dose of study drug or while on study.
* Significant congenital cardiovascular disease including, but not limited to conditions such as long QT syndrome, fundamental uncorrected cardiac defect (e.g., coarctation of the aorta) that poses a significant risk to the participant (ventricular septal defect or atrial septal defect are considered non-significant).
* Underlying medical condition that, in the Principal Investigator's opinion, will make the administration of study treatment hazardous or obscure the interpretation of toxicity determination or AEs.
* For fludarabine and cytarabine: Hypersensitivity to the active substance or to any of the excipients.
* Recent live vaccinations for at least 6 months.
0 Years
21 Years
ALL
No
Sponsors
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Kura Oncology
UNKNOWN
PedAL BCU, LLC
OTHER
Responsible Party
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Locations
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Children's Hospital Los Angeles
Los Angeles, California, United States
Children's Hospital Colorado
Aurora, Colorado, United States
Children's Healthcare of Atlanta
Atlanta, Georgia, United States
Ann & Robert H. Lurie Children's Hospital of Chicago
Chicago, Illinois, United States
Dana-Farber Cancer Institute
Boston, Massachusetts, United States
Memorial Sloan Kettering Cancer Center - New York
New York, New York, United States
Cincinnati Children's Hospital Medical Center
Cincinnati, Ohio, United States
Children's Hospital of Philadelphia
Philadelphia, Pennsylvania, United States
St. Jude Children's Research Hospital
Memphis, Tennessee, United States
Texas Children's Hospital
Houston, Texas, United States
Seattle Children's Hospital
Seattle, Washington, United States
Sankt Anna-Kinderspital
Vienna, Vienna, Austria
SickKids - The Hospital for Sick Children
Toronto, Ontario, Canada
CHU de Nantes - Hôpital Femme-Enfant-Adolescent
Nantes, Loire-Atlantique, France
CHU de Reims - Hôpital Robert Debré
Paris, Île-de-France Region, France
Ospedale Pediatrico Bambino Gesù
Roma, Rome, Italy
Fondazione IRCCS San Gerardo dei Tintori (Ospedale San Gerardo)
Monza, , Italy
Prinses Maxima Centrum Kinderoncologie
Utrecht, , Netherlands
Hospital Universitari Vall d'Hebrón
Barcelona, , Spain
Hospital Infantil Universitario Niño Jesús
Madrid, , Spain
Countries
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Central Contacts
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Other Identifiers
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2023-505262-28-00
Identifier Type: CTIS
Identifier Source: secondary_id
ITCC-101/APAL2020K
Identifier Type: -
Identifier Source: org_study_id
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