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Gilteritinib vs Midostaurin in FLT3 Mutated Acute Myeloid Leukemia

Randomized Trial of Gilteritinib vs Midostaurin in FLT3 Mutated Acute Myeloid Leukemia (AML)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03836209
Enrollment
181
Registered
2019-02-11
Start date
2019-12-06
Completion date
2026-06-30
Last updated
2026-07-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Myeloid Leukemia

Keywords

Gilteritinib, Midostaurin, Daunorubicin, Cytarabine, FLT3, FLT3 Mutation, FLT3 Internal Tandem Duplication (ITD), FLT3 ITD, FLT3 Tyrosine Kinase Domain (TKD), FLT3 TKD

Brief summary

Eligible untreated patients with FLT3 acute myeloid leukemia (AML) between the ages of 18 and 70 will be randomized to receive gilteritinib or midostaurin during induction and consolidation. Patients will also receive standard chemotherapy of daunorubicin and cytarabine during induction and high-dose cytarabine during consolidation. Gilteritinib, is an oral drug that works by stopping the leukemia cells from making the FLT3 protein. This may help stop the leukemia cells from growing faster and thus may help make chemotherapy more effective. Gilteritinib has been approved by the Food and Drug Administration (FDA) for patients who have relapsed or refractory AML with a FLT3 mutation but is not approved by the FDA for newly diagnosed FLT3 AML, and its use in this setting is considered investigational. Midostaurin is an oral drug that works by blocking several proteins on cancer cells, including FLT3 that can help leukemia cells grow. Blocking this pathway can cause death to the leukemic cells. Midostaurin is approved by the FDA for the treatment of FLT3 AML. The purpose of this study is to compare the effectiveness of gilteritinib to midostaurin in patients receiving combination chemotherapy for FLT3 AML.

Detailed description

Approximately one third of patients with AML have a particular change in their leukemia cells (called a mutation) in a gene called FLT3. The presence of a FLT3 mutation can be used to direct treatment options. This is an open-label phase II study. Patients will receive standard chemotherapy of daunorubicin and cytarabine during Induction and high-dose cytarabine during Consolidation. Patients will be randomized to gilteritinib or midostaurin. After approximately 90 patient's complete treatment, a review of the effectiveness of gliteritinib compared to midostaurin will be done. If gilteritinib is not as effective as midostaurin, the study may be stopped. Bone marrow aspirate and biopsy will be done on Day 21 after start of Induction and after Induction to assess response. Patients with a complete response may proceed to consolidation chemotherapy. Another bone marrow aspirate and biopsy will be done after the first cycle of consolidation is complete. Mandatory prescreening bone marrow and/or blood samples are required for FLT3 testing. Any left-over samples will be requested for future research (optional). Mandatory bone marrow samples for research are required after Induction and if patient receives Consolidation, after the first cycle of Consolidation.

Interventions

DRUGCytarabine

Induction: Cytarabine 100 mg/m²/day continuous infusion x 7 days starting Day 1 Second Induction, if needed: Cytarabine 100 mg/m²/day continuous infusion x 7 days starting Day 1 Consolidation: Cytarabine 3 g/m² (recommend 1.5 g/m² for age ≥ 55 or patients with decreased creatinine clearance) every 12 hours IV Days 1,3,5 or Days 1-3 for 6 doses for up to 4 cycles

DRUGGilteritinib

Induction: 120 mg orally daily x 14 days starting on day 8 Consolidation: 120 mg orally daily x 14 days starting on day 8 of each cycle (up to 4 cycles)

DRUGMidostaurin

Induction: 50 mg orally twice daily x 14 days beginning on day 8 Consolidation: 50 mg orally twice daily x 14 days beginning on day 8 of each cycle (up to 4 cycles)

DRUGDaunorubicin

First Induction: Daunorubicin 90 mg/m²/day IV Days 1,2,3 Second Induction, if needed: Daunorubicin 45 mg/m²/day IV Days 1,2,3

Sponsors

PrECOG, LLC.
Lead SponsorOTHER
Astellas Pharma Inc
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Open-Label, Randomized trial of Daunorubicin/Cytarabine and High Dose Cytarabine + Gilteritinib vs Midostaurin for Induction and Consolidation. FLT3 mutated patients will be stratified based on TKD vs ITD. Patients who are FLT3 ITD will be further stratified by Signal Ratio (high vs. low of FLT3 Wild Type) and Nucleophosmin 1-Mutated (NPM1) \[positive vs negative\].

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

Registration Criteria: * Any patient undergoing bone marrow biopsy with suspicion of or known diagnosis of acute myeloid leukemia (AML) will be asked to sign a Prescreening Consent to allow for centralized testing of bone marrow/peripheral blood samples. Randomization Eligibility Criteria: * Patient must have previously untreated FLT3 mutated Non M3 AML (FLT3-TKD or FLT3-ITD allowed). ° Standard of care induction 7+3 chemotherapy may start prior to randomization using same regimen and doses as defined in the protocol while awaiting prescreening test results. * Patient must have had no prior systemic therapy for AML, except as noted below: * Hydroxyurea and emergent leukapheresis or preemptive treatment with retinoic acid prior to exclusion of Acute Promyelocytic Leukemia (APL) allowed. * Prior therapy for myelodysplastic syndrome (MDS) or myeloproliferative neoplasms (MPN) (e.g., thalidomide or lenalidomide, interferon, jakafi, cytokines, 5-azacytidine or decitabine, histone deacetylase inhibitors). * Initiation of standard of care 7+3 induction chemotherapy using same regimen and doses as defined in protocol while awaiting prescreening test results * Patient may not have received hypomethylating agent within 21 days. * Patient may not have M3 AML. * Patient may not have AML with known Core Binding Factor -t(8;21), inv(16), t(16;16). * Patient may not have known active Central Nervous System (CNS) leukemia. ° Prophylaxis with intrathecal chemotherapy is allowed prior to or during induction/consolidation. * Patient must have an Eastern Cooperative Oncology Group (ECOG) performance status of 0-3. * Patient must be age ≥ 18 years to ≤ 70 years. * Patient must be able to understand and willing to sign Institutional Review Board (IRB)-approved informed consent. * Patient must be willing to provide mandatory bone marrow and blood samples for research. * Patient must have adequate organ function as measured by the following criteria, obtained ≤ 48 hours prior to randomization except ECG and left ventricular ejection fraction (LVEF) which can be done ≤ 2 weeks prior to randomization: * Serum creatinine ≤ 1.5x institutional upper limit of normal (ULN), or if serum creatinine outside normal range, then glomerular filtration rate (GFR) \>40 mL/min as measured by Cockcroft-Gault formula. * Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST) ≤ 3x ULN, unless secondary to leukemia. * Serum total or direct bilirubin \<2 mg/dL, unless due to Gilbert's, hemolysis or leukemic infiltration. * Fridericia-Corrected QT Interval (QTcF) interval ≤ 500 msec (using Friderica's correction). * Left Ventricular Ejection Fraction \>45%. * The patient may not be known to have hypokalemia and/or hypomagnesemia that does not respond to supplementation. * A female patient is eligible to participate if she is not pregnant and at least one of the following conditions apply: * Not a woman of childbearing potential (WOCBP) OR * WOCBP who agrees to follow the contraceptive guidance throughout the treatment period and for at least 180 days after the final study drug administration. * Female patient must agree not to breastfeed or donate ova starting at treatment and throughout the study period, and for at least 180 days after the final study drug administration. * A male patient must agree not to donate sperm starting at treatment and throughout the study period, and for at least 120 days after the final study drug administration. * A male patient with female partner(s) of child-bearing potential must agree to use contraception during the treatment period, and for at least 120 days after the final study drug administration. * Male patient with a pregnant or breastfeeding partner(s) must agree to remain abstinent or use a condom for the duration of the pregnancy or time partner is breastfeeding throughout the treatment period, and for at least 120 days after the final study drug administration. * Patient may not have another malignancy that could interfere with the evaluation of safety or efficacy of this combination. * Patient may not have a history of Long QT Syndrome. * Patient may not have evidence of uncontrolled angina, severe uncontrolled ventricular arrhythmias, electrocardiographic evidence of acute ischemia, or congestive heart failure (CHF) New York Heart Association (NYHA) Class 3 or 4. Patient may also not have a history of CHF NYHA Class 3 or 4 in the past, unless a prescreening echocardiogram (ECHO) or multigated acquisition scan (MUGA) performed within 2 weeks prior to study entry with results of left ventricular ejection fraction \>45%. * Patient may not have had major surgery or radiation therapy within 4 weeks of registration. * Patient may not require treatment with concomitant drugs that are strong inducers of CYP3A and P-gp. * Patient with a known allergy to any of the study medications, their analogues, or excipients in the various formulations of any agent are not eligible. * Patient with known gastrointestinal (GI) disease or prior GI procedure that could interfere with the oral absorption or tolerance of gilteritinib or midostaurin including difficulty swallowing are not eligible. * Patient with any serious medical or psychiatric illness that could, in the investigator's opinion, potentially interfere with the completion of the treatment according to the protocol are not eligible. * Patient may not participate in any other therapeutic clinical trials, including those with other investigational agents not included in this trial during treatment on this study without prior approval from PrECOG.

Design outcomes

Primary

MeasureTime frameDescription
FLT3 Mutation Negative Composite Complete Response (CRc) [Includes Complete Response (CR) or CR With Incomplete Hematologic Recovery (CRi)] at End of Induction3 monthsFLT3 mutation negative (evaluated by polymerase chain reaction \[PCR\]) Composite Complete Response (CRc) \[includes CR and CRi\] rate after induction treatment and complete MRD assessment. The cut points used for FLT3 mutation negative are 1% (equivalent to 10-2) for FLT3-TKD and 10-4 for FLT3-ITD.

Secondary

MeasureTime frameDescription
FLT3 Mutation Negative Complete Response (CR) Rate at End of Induction3 monthsCR evaluated by FLT3 testing after Induction
Minimal Residual Disease (MRD)- CRc Rate at End of Induction3 monthsMRD- CRc evaluated by flow cytometry after Induction
CRc (CR or CRi) Rate at End of Induction3 monthsCRc assessed in accordance with 2017 European LeukemiaNet (ELN)
Event Free Survival (EFS)68 monthsEFS assessed in accordance with 2017 ELN
Overall Survival (OS)68 monthsOS assessed in accordance with 2017 ELN
Number of Participants Treatment-related Adverse Events as Assessed by CTCAE v5.010 monthsNumber of participants with abnormal laboratory values and/or adverse events

Countries

United States

Contacts

STUDY_CHAIRSelena Luger, MD

University of Pennsylvania

Participant flow

Pre-assignment details

All randomized, eligible, and treated patients. 3 patients passed away/withdrew before induction. 1 patient determined to not have the diagnosis to meet the eligibility criteria and was removed from the study (181 consented).

Participants by arm

ArmCount
Arm A
Induction: Daunorubicin, cytarabine and gilteritinib. Depending on response, second cycle of Induction may be given. Consolidation: High-dose cytarabine and gilteritinib. Gilteritinib: Induction: 120 mg orally daily x 14 days starting on day 8 Consolidation: 120 mg orally daily x 14 days starting on day 8 of each cycle (up to 4 cycles) Daunorubicin: First Induction: Daunorubicin 90 mg/m²/day IV Days 1,2,3 Second Induction, if needed: Daunorubicin 45 mg/m²/day IV Days 1,2,3 Cytarabine: Induction: Cytarabine 100 mg/m²/day continuous infusion x 7 days starting Day 1 Second Induction, if needed: Cytarabine 100 mg/m²/day continuous infusion x 7 days starting Day 1 Consolidation: Cytarabine 3 g/m² (recommend 1.5 g/m² for age ≥ 55 or patients with decreased creatinine clearance) every 12 hours IV Days 1,3,5 or Days 1-3 for 6 doses for up to 4 cycles
90
Arm B
Induction: Daunorubicin, cytarabine and midostaurin. Depending on response, second cycle of Induction may be given. Consolidation: High-dose cytarabine and midostaurin. Midostaurin: Induction: 50 mg orally twice daily x 14 days beginning on day 8 Consolidation: 50 mg orally twice daily x 14 days beginning on day 8 of each cycle (up to 4 cycles) Daunorubicin: First Induction: Daunorubicin 90 mg/m²/day IV Days 1,2,3 Second Induction, if needed: Daunorubicin 45 mg/m²/day IV Days 1,2,3 Cytarabine: Induction: Cytarabine 100 mg/m²/day continuous infusion x 7 days starting Day 1 Second Induction, if needed: Cytarabine 100 mg/m²/day continuous infusion x 7 days starting Day 1 Consolidation: Cytarabine 3 g/m² (recommend 1.5 g/m² for age ≥ 55 or patients with decreased creatinine clearance) every 12 hours IV Days 1,3,5 or Days 1-3 for 6 doses for up to 4 cycles
87
Total177

Baseline characteristics

CharacteristicTotalArm BArm A
Age, Continuous51 years
STANDARD_DEVIATION 13
51 years
STANDARD_DEVIATION 12
50 years
STANDARD_DEVIATION 13
AML Category
AML with Myelodysplasia-Related Changes
11 Participants4 Participants7 Participants
AML Category
De Novo AML
159 Participants79 Participants80 Participants
AML Category
Therapy-Related AML
7 Participants4 Participants3 Participants
ECOG (Eastern Cooperative Oncology Group) Performance Score
0
44 Participants22 Participants22 Participants
ECOG (Eastern Cooperative Oncology Group) Performance Score
1
114 Participants56 Participants58 Participants
ECOG (Eastern Cooperative Oncology Group) Performance Score
2
15 Participants7 Participants8 Participants
ECOG (Eastern Cooperative Oncology Group) Performance Score
3
3 Participants1 Participants2 Participants
ECOG (Eastern Cooperative Oncology Group) Performance Score
Unknown
1 Participants1 Participants0 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
15 Participants6 Participants9 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
152 Participants77 Participants75 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
10 Participants4 Participants6 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
5 Participants2 Participants3 Participants
Race (NIH/OMB)
Black or African American
15 Participants8 Participants7 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
19 Participants8 Participants11 Participants
Race (NIH/OMB)
White
137 Participants68 Participants69 Participants
Sex: Female, Male
Female
103 Participants54 Participants49 Participants
Sex: Female, Male
Male
74 Participants33 Participants41 Participants
WHO Classification
AML not otherwise specified
100 Participants50 Participants50 Participants
WHO Classification
AML related to previous chemotherapy or radiation
2 Participants1 Participants1 Participants
WHO Classification
AML with certain genetic abnormalities
68 Participants34 Participants34 Participants
WHO Classification
AML with myelodysplasia-related changes
7 Participants2 Participants5 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
23 / 9027 / 87
other
Total, other adverse events
83 / 9081 / 87
serious
Total, serious adverse events
48 / 9039 / 87

Outcome results

Primary

FLT3 Mutation Negative Composite Complete Response (CRc) [Includes Complete Response (CR) or CR With Incomplete Hematologic Recovery (CRi)] at End of Induction

FLT3 mutation negative (evaluated by polymerase chain reaction \[PCR\]) Composite Complete Response (CRc) \[includes CR and CRi\] rate after induction treatment and complete MRD assessment. The cut points used for FLT3 mutation negative are 1% (equivalent to 10-2) for FLT3-TKD and 10-4 for FLT3-ITD.

Time frame: 3 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm AFLT3 Mutation Negative Composite Complete Response (CRc) [Includes Complete Response (CR) or CR With Incomplete Hematologic Recovery (CRi)] at End of Induction36 Participants
Arm BFLT3 Mutation Negative Composite Complete Response (CRc) [Includes Complete Response (CR) or CR With Incomplete Hematologic Recovery (CRi)] at End of Induction41 Participants
p-value: 0.36690% CI: [-0.205, 0.062]Fisher Exact
Secondary

CRc (CR or CRi) Rate at End of Induction

CRc assessed in accordance with 2017 European LeukemiaNet (ELN)

Time frame: 3 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm ACRc (CR or CRi) Rate at End of Induction77 Participants
Arm BCRc (CR or CRi) Rate at End of Induction63 Participants
p-value: 0.04290% CI: [0.02, 0.242]Fisher Exact
Secondary

Event Free Survival (EFS)

EFS assessed in accordance with 2017 ELN

Time frame: 68 months

Secondary

FLT3 Mutation Negative Complete Response (CR) Rate at End of Induction

CR evaluated by FLT3 testing after Induction

Time frame: 3 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm AFLT3 Mutation Negative Complete Response (CR) Rate at End of Induction33 Participants
Arm BFLT3 Mutation Negative Complete Response (CR) Rate at End of Induction37 Participants
p-value: 0.44690% CI: [-0.191, 0.073]Fisher Exact
Secondary

Minimal Residual Disease (MRD)- CRc Rate at End of Induction

MRD- CRc evaluated by flow cytometry after Induction

Time frame: 3 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm AMinimal Residual Disease (MRD)- CRc Rate at End of Induction58 Participants
Arm BMinimal Residual Disease (MRD)- CRc Rate at End of Induction52 Participants
p-value: 0.53990% CI: [-0.084, 0.178]Fisher Exact
Secondary

Number of Participants Treatment-related Adverse Events as Assessed by CTCAE v5.0

Number of participants with abnormal laboratory values and/or adverse events

Time frame: 10 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm ANumber of Participants Treatment-related Adverse Events as Assessed by CTCAE v5.082 Participants
Arm BNumber of Participants Treatment-related Adverse Events as Assessed by CTCAE v5.073 Participants
Secondary

Overall Survival (OS)

OS assessed in accordance with 2017 ELN

Time frame: 68 months

Source: ClinicalTrials.gov · Data processed: Jul 24, 2026