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NCT03589326 · CITED IN SOURCE DOCUMENTS

A Study of Ponatinib Versus Imatinib in Adults With Acute Lymphoblastic Leukemia

An NCI or FDA source cites this study. A citation does not establish that it applies to an individual diagnosis.

Phase
PHASE3
Status at capture
ACTIVE NOT RECRUITING
Registry last update
2025-11-26

In this study, adults with newly-diagnosed Philadelphia Chromosome-positive acute lymphoblastic leukemia (Ph+ ALL) will receive first-line therapy of ponatinib or imatinib. The main aim of this study is to compare the number of participants on each treatment that show no signs of disease. Participants will take tablets of either ponatinib or imatinib at the same time each day combined with reduced-intensity chemotherapy for up to 20 months. Then, they will continue with single-agent therapy (ponatinib or imatinib) until they meet the discontinuation criteria from the study.

Open the original ClinicalTrials.gov record → · Download preserved record

What did the study report?

Outcomes, safety and baseline populations are separate source sections. Quality-of-life measures appear under their original outcome titles.

Who could take part
eligibility Criteria
Inclusion Criteria: 1. Newly diagnosed Philadelphia chromosome-positive (Ph+) or BCR-ABL1-positive ALL, as defined by the 2017 national comprehensive cancer network (NCCN) guidelines. 2. Eastern Cooperative Oncology Group (ECOG) performance status of \<=2. Exclusion Criteria: 1. With a history or current diagnosis of chronic phase, accelerated phase, or blast phase chronic myeloid leukemia (CML). 2. Prior/current treatment with any systemic anticancer therapy (including but not limited to any tyrosine kinase inhibitor \[TKI\]) and/or radiotherapy for ALL, with the exception of an optional prephase therapy or chemotherapy induction (no more than 1 cycle), which should be discussed with the sponsor's medical monitor/designee. 3. Currently taking drugs that are known to have a risk of causing prolonged corrected QT (QTc) or torsades de pointes (TdP) (unless these can be changed to acceptable alternatives or discontinued). 4. Taking any medications or herbal supplements that are known to be strong inhibitors or strong inducers of cytochrome P450 (CYP)3A4 within at least 14 days before the first dose of study drug. 5. Uncontrolled active serious infection that could, in the investigator's opinion, potentially interfere with the completion of treatment according to this protocol. 6. Major surgery within 28 days before randomization (minor surgical procedures such as catheter placement or BM biopsy are not exclusionary criteria). 7. Known human immunodeficiency virus (HIV) seropositivity, known active hepatitis B or C infection. 8. History of acute pancreatitis within 1 year of study screening or history of chronic pancreatitis. 9. Uncontrolled hypertriglyceridemia (triglycerides \>450 milligram per deciliter \[mg/dL\]). 10. Diagnosed and treated for another malignancy within 5 years before randomization or previously diagnosed with another malignancy and have any evidence of residual disease. Participants with nonmelanoma skin cancer or carcinoma in situ of any type are not excluded if they have undergone complete resection. 11. History or presence of clinically relevant CNS pathology such as epilepsy, childhood or adult seizure, paresis, aphasia, stroke, severe brain injuries, dementia, Parkinson's disease, cerebellar disease, organic brain syndrome, or psychosis. 12. Clinical manifestations of CNS or extramedullary involvement with ALL other than lymphadenopathy or hepatosplenomegaly. 13. Autoimmune disease with potential CNS involvement. 14. Known significant neuropathy of Grade \>=2 severity. 15. Clinically significant, uncontrolled, or active cardiovascular, cerebrovascular, or peripheral vascular disease, or history of or active venous thrombotic/embolic event (VTE) disease. 16. Have a significant bleeding disorder unrelated to ALL.
healthy Volunteers
false
minimum Age
18 Years
sex
ALL
std Ages
  1. ADULT
  2. OLDER_ADULT
Treatment arms and interventions
arm Groups
  1. description
    Ponatinib 30 mg, tablets, orally, once daily (QD), with vincristine 1.4 mg/m\^2 (max 2 mg) intravenous (IV), on Days 1 and 14 and dexamethasone 40 mg (\<60 years \[yrs\]) and 20 mg (≥60 yrs), orally, once on Days 1 to 4, Days 11 to 14 for up to 3 cycles (each cycle=28 days) in induction phase (reduced dose of ponatinib 15 mg upon achievement of MRD-negative CR at end of induction) followed by ponatinib last induction phase dose with cytarabine, 1000 mg/m\^2 as 2-hour IV infusion (\<60 yrs) and 250 mg/m\^2 (≥60 yrs) every 12 hours, IV on Days 1, 3, 5 of Cycles 2,4,6 and methotrexate, 1000 mg/m\^2 (\<60 yrs) and 250 mg/m\^2 (≥60 yrs), IV infusion, on Day 1 of cycles 1, 3, 5 in consolidation phase followed by ponatinib last consolidation phase dose with vincristine 1.4 mg/m\^2 (max 2 mg), IV, on Day 1 and prednisone 200 mg (\<60 yrs), 100 mg (≥60-69 yrs) and 50 mg(≥70 yrs) on Days 1 to 5 for up to 11 cycles in maintenance phase up to data cut-off date: 12 August 2022.
    intervention Names
    1. Drug: Ponatinib
    2. Drug: Vincristine
    3. Drug: Dexamethasone
    4. Drug: Cytarabine
    5. Drug: Methotrexate
    6. Drug: Prednisone
    label
    Cohort A: Ponatinib 30 milligram (mg)
    type
    EXPERIMENTAL
  2. description
    Imatinib 600 mg, tablets, orally, QD, with vincristine 1.4 mg/m\^2 (max 2 mg), IV, on Days 1 and 14 and dexamethasone 40 mg (\<60 yrs) and 20 mg (≥60 yrs), orally, once on Days 1 to 4 and Days 11 to 14 in each 28-day cycle for up to 3 cycles in the induction phase followed by imatinib 600 mg, tablets, orally, QD, with cytarabine, 1000 mg/m\^2 every 12 hours as a 2-hour-IV infusion (\<60 yrs) and 250 mg/m\^2 every 12 hours (≥60 yrs), IV on Days 1, 3, and 5 of each 28-day even cycles (Cycles 2, 4, and 6), and methotrexate, 1000 mg/m\^2 (\<60 yrs) and 250 mg/m\^2 (≥60 yrs), IV infusion, on Day 1 of each 28-day odd cycles (Cycle 1, 3, and 5) in consolidation phase followed by imatinib 600 mg, tablets, orally, QD, along with vincristine 1.4 mg/m\^2 (max 2 mg), IV, on Day 1 and prednisone 200 mg (\<60 yrs), 100 mg (≥60-69 yrs) and 50 mg (≥70 yrs) on Days 1 through 5 in each 28-day cycle up to 11 cycles in maintenance phase up to data cut-off date: 12 August 2022.
    intervention Names
    1. Drug: Imatinib
    2. Drug: Vincristine
    3. Drug: Dexamethasone
    4. Drug: Cytarabine
    5. Drug: Methotrexate
    6. Drug: Prednisone
    label
    Cohort B: Imatinib 600 mg
    type
    ACTIVE_COMPARATOR
interventions
  1. arm Group Labels
    1. Cohort A: Ponatinib 30 milligram (mg)
    description
    Ponatinib Tablets.
    name
    Ponatinib
    other Names
    1. Iclusig
    type
    DRUG
  2. arm Group Labels
    1. Cohort B: Imatinib 600 mg
    description
    Imatinib Tablets.
    name
    Imatinib
    other Names
    1. Gleevec
    type
    DRUG
  3. arm Group Labels
    1. Cohort A: Ponatinib 30 milligram (mg)
    2. Cohort B: Imatinib 600 mg
    description
    Vincristine IV injection.
    name
    Vincristine
    type
    DRUG
  4. arm Group Labels
    1. Cohort A: Ponatinib 30 milligram (mg)
    2. Cohort B: Imatinib 600 mg
    description
    Dexamethasone Tablets.
    name
    Dexamethasone
    type
    DRUG
  5. arm Group Labels
    1. Cohort A: Ponatinib 30 milligram (mg)
    2. Cohort B: Imatinib 600 mg
    description
    Cytarabine IV infusion.
    name
    Cytarabine
    type
    DRUG
  6. arm Group Labels
    1. Cohort A: Ponatinib 30 milligram (mg)
    2. Cohort B: Imatinib 600 mg
    description
    Methotrexate IV infusion.
    name
    Methotrexate
    type
    DRUG
  7. arm Group Labels
    1. Cohort A: Ponatinib 30 milligram (mg)
    2. Cohort B: Imatinib 600 mg
    description
    Prednisone Tablets.
    name
    Prednisone
    type
    DRUG
Study design
allocation
RANDOMIZED
intervention Model
PARALLEL
masking Info
masking
NONE
masking Description
It is an open-label trial, therefore investigators and participants are unblinded.
primary Purpose
TREATMENT
Enrollment
count
245
type
ACTUAL
Registered outcome plans (not posted results)
primary Outcomes
  1. description
    MRD-negative CR was achieved when a participant met the criteria for both MRD negativity and CR. MRD-negativity: ≤0.01 % breakpoint cluster region-Abelson (BCR-ABL1/ABL1), or undetectable BCR-ABL1 transcripts in complementary deoxyribonucleic acid (cDNA) with ≥ 10,000 ABL1 transcripts. CR: meeting all the following for at least 4 weeks (that is no recurrence):1. No circulating blasts and less than (\<) 5% blasts in the bone marrow (BM). 2. Normal maturation of all cellular components in the BM. 3. No extramedullary disease (central nervous system \[CNS\] involvement, lymphadenopathy, splenomegaly, skin/gum infiltration, testicular mass). 4. Absolute neutrophil count (ANC) \> 1000 per microliter (/mcL) (or \>1.0\*10\^9/L). 5. Platelets \>100,000/mcL (or \>100\*10\^9/L).
    measure
    Number of Participants With Minimal Residual Disease (MRD)-Negative Complete Remission (CR) at The End of Induction Phase
    time Frame
    From Cycle 1 through Cycle 3 (approximately 3 months) (Cycle length = 28 days)
secondary Outcomes
  1. description
    EFS is defined as the dates of randomization until death due to any cause or failure to achieve CR by end of induction or relapse from CR. CR: meeting all the following for at least 4 weeks (that is no recurrence):1. No circulating blasts and less than (\<) 5% blasts in the bone marrow (BM). 2. Normal maturation of all cellular components in the BM. 3. No extramedullary disease (central nervous system \[CNS\] involvement, lymphadenopathy, splenomegaly, skin/gum infiltration, testicular mass). 4. Absolute neutrophil count (ANC) greater than (\>) 1000 per micro liter (/mcL) (or \>1.0\*10\^9/L). 5. Platelets \>100,000/mcL (or \>100\*10\^9/L).Relapse from CR: reappearance of blasts in the blood or BM (\>=5%) or in any extramedullary site after a CR.
    measure
    Event-free Survival (EFS)
    time Frame
    Baseline up to approximately 3 to 6 years
  2. description
    CR is defined as meeting all the following for at least 4 weeks (that is, no recurrence): 1. No circulating blasts and \<5% blasts in the BM. 2. Normal maturation of all cellular components in the BM. 3. No extramedullary disease (CNS involvement, lymphadenopathy, splenomegaly, skin/gum infiltration, testicular mass). 4. ANC \>1000/mcL (or \>1.0\*10\^9/L). 5. Platelets \>100,000/mcL (or \>100\*10\^9/L). CRi is defined as hematologic complete remission with incomplete hematologic recovery and meeting all criteria for CR except platelet count and/or ANC.
    measure
    Percentage of Participants With CR and Incomplete Complete Remission (CRi)
    time Frame
    End of Cycle 1 (approximately 1 month), Cycle 2 (approximately 2 months), Cycle 3 (approximately 3 months), and Cycle 9 (approximately 9 months) (Cycle length= 28 days)
  3. description
    Molecule response is assessed by 3-Log Reduction (MR3), Molecular Response 4-Log Reduction (MR4) and Molecular Response 4.5-Log Reduction (MR4.5). MR3 is defined as molecular response 3-log reduction (\<=0.1% BCR-ABL1/ABL1), or undetectable BCR-ABL1 transcripts in cDNA with \>=1000 ABL1 transcripts. MR4 is defined as molecular response 4-log reduction (\<=0.01% BCR-ABL1/ABL1), or undetectable BCR-ABL1 transcripts in cDNA with \>=10,000 ABL1 transcripts. MR4.5 is defined as Molecular response 4.5-log reduction (\<=0.0032% BCR-ABL1/ABL1), or undetectable BCR-ABL1 transcripts in cDNA with \>=32,000 ABL1 transcripts.
    measure
    Percentage of Participants With Molecular Response
    time Frame
    End of Cycle 1 (approximately 1 month), Cycle 2 (approximately 2 months), Cycle 3 (approximately 3 months), and Cycle 9 (approximately 9 months) (Cycle length= 28 days)
  4. description
    PIF is defined as participants who received treatment for ALL but never achieved CR or CRi by the end of induction. PIF is not limited by the number of unsuccessful treatments; this disease status only applies to recipients who have never been in CR or CRi. CR is defined as meeting all the following for at least 4 weeks (that is no recurrence): 1. No circulating blasts and \<5% blasts in the BM. 2. Normal maturation of all cellular components in the BM. 3. No extramedullary disease (CNS involvement, lymphadenopathy, splenomegaly, skin/gum infiltration, testicular mass). 4. ANC \>1000/mcL (or \>1.0\*10\^9/L). 5. Platelets \>100,000/mcL (or \>100\*10\^9/L). CRi is defined as hematologic complete remission with incomplete hematologic recovery and meeting all criteria for CR except platelet count and/or ANC.
    measure
    Percentage of Participants With Primary Induction Failure (PIF)
    time Frame
    Up to 3 months
  5. description
    ORR is defined as CR + CRi by end of induction. CR is defined as meeting all the following for at least 4 weeks (that is no recurrence): 1. No circulating blasts and \<5% blasts in the BM. 2. Normal maturation of all cellular components in the BM. 3. No extramedullary disease (CNS involvement, lymphadenopathy, splenomegaly, skin/gum infiltration, testicular mass). 4. ANC \>1000/mcL (or \>1.0\*10\^9/L). 5. Platelets \>100,000/mcL (or \>100\*10\^9/L). CRi is defined as hematologic complete remission with incomplete hematologic recovery and meeting all criteria for CR except platelet count and/or ANC.
    measure
    Percentage of Participants With Overall Response Rate (ORR)
    time Frame
    Up to 3 months
  6. description
    MRD is defined as the percentage of participants achieving CR who are MRD-negative at multiple intervals after end of induction. MRD negativity: \<=0.01% BCR-ABL1/ABL1, or undetectable BCR-ABL1 transcripts in cDNA with \>=10,000 ABL1 transcripts. Relapse from CR: Reappearance of blasts in the blood or BM (\>=5%) or in any extramedullary site after a CR.
    measure
    Percentage of MRD-Negative CR
    time Frame
    Up to approximately 3 to 6 years
  7. description
    Duration of MRD-negative CR is defined as interval between the first assessment at which the criteria for MRD-negative CR are met until the earliest date at which loss of MRD negativity or relapse from CR occurs. MRD negativity (MR4): \<=0.01% BCR-ABL1/ABL1, or undetectable BCR-ABL1 transcripts in cDNA with \>=10,000 ABL1 transcripts. CR is defined as meeting all the following for at least 4 weeks (that is, no recurrence): 1. No circulating blasts and \<5% blasts in the BM. 2. Normal maturation of all cellular components in the BM. 3. No extramedullary disease (CNS involvement, lymphadenopathy, splenomegaly, skin/gum infiltration, testicular mass). 4. ANC \>1000/mcL (or \>1.0\*10\^9/L). 5. Platelets \>100,000/mcL (or \>100\*10\^9/L). Relapse from CR: Reappearance of blasts in the blood or BM (\>=5%) or in any extramedullary site after a CR.
    measure
    Duration of MRD-Negative CR
    time Frame
    Up to approximately 3 to 6 years
  8. description
    Duration of CR is defined as interval between the first assessment at which the criteria for CR are met until the earliest date at which relapse from CR occurs. CR is defined as meeting all the following for at least 4 weeks (that is no recurrence): 1. No circulating blasts and \<5% blasts in the BM. 2. Normal maturation of all cellular components in the BM. 3. No extramedullary disease (CNS involvement, lymphadenopathy, splenomegaly, skin/gum infiltration, testicular mass). 4. ANC \>1000/mcL (or \>1.0\*10\^9/L). 5. Platelets \>100,000/mcL (or \>100\*10\^9/L). Relapse from CR: Reappearance of blasts in the blood or BM (\>=5%) or in any extramedullary site after a CR.
    measure
    Duration of CR
    time Frame
    Up to approximately 3 to 6 years
  9. description
    Time to treatment failure is defined as time to end of study randomized treatment (except for hematopoietic stem cell transplantation \[HSCT\] without loss of MRD-negative CR) due to safety and efficacy reasons. MRD-negative CR is achieved when a participant meets the criteria for both MRD negativity and CR. MRD-negativity: \<=0.01% BCR-ABL1/ABL1, or undetectable BCR-ABL1 transcripts in cDNA with \>=10,000 ABL1 transcripts. CR: meeting all the following for at least 4 weeks (that is no recurrence):1. No circulating blasts and \<5% blasts in the BM. 2. Normal maturation of all cellular components in the BM. 3. No extramedullary disease (CNS involvement, lymphadenopathy, splenomegaly, skin/gum infiltration, testicular mass). 4. ANC \>1000/mcL (or \>1.0\*10\^9/L). 5. Platelets \>100,000/mcL (or \>100\*10\^9/L).
    measure
    Time to Treatment Failure
    time Frame
    Up to approximately 6 years
  10. description
    Duration of MR4.5 is defined as interval between the first assessment at which the criteria for MR4.5 are met until the earliest date at which loss of MR4.5 occurs. MR4.5 is molecular response 4.5-log reduction (\<=0.0032% BCR-ABL1/ABL1), or undetectable BCR-ABL1 transcripts in cDNA with \>=32,000 ABL1 transcripts.
    measure
    Duration of MR4.5
    time Frame
    Up to approximately 3 to 6 years
  11. description
    On-study participants with or without HSCT will be evaluated. OS is defined as interval between randomization and death due to any cause, censored at the last contact date when the participant was alive.
    measure
    Percentage of On-Study Participants With Overall Survival (OS)
    time Frame
    Up to approximately 3 to 6 years
  12. description
    On-study participants with or without HSCT will be evaluated. Relapse from CR is defined as reappearance of blasts in the blood or BM (\>=5%) or in any extramedullary site after a CR.
    measure
    Percentage of On-Study Participants With Relapse From CR
    time Frame
    Up to approximately 3 to 6 years
Full study description
brief Summary
In this study, adults with newly-diagnosed Philadelphia Chromosome-positive acute lymphoblastic leukemia (Ph+ ALL) will receive first-line therapy of ponatinib or imatinib. The main aim of this study is to compare the number of participants on each treatment that show no signs of disease. Participants will take tablets of either ponatinib or imatinib at the same time each day combined with reduced-intensity chemotherapy for up to 20 months. Then, they will continue with single-agent therapy (ponatinib or imatinib) until they meet the discontinuation criteria from the study.
detailed Description
The drug being tested in this study is called ponatinib. Ponatinib is being tested to treat people who have newly diagnosed Ph+ ALL. This study will look at the efficacy of ponatinib in participants in addition to standard care. The study will enroll approximately 230 participants. Participants will be randomized in a 2:1 ratio to receive oral ponatinib or imatinib (Cohort A and Cohort B, respectively) daily throughout the study. All participants will be asked to take ponatinib or imatinib at the same time each day with reduced-intensity chemotherapy in induction phase (Cycles 1 to 3), consolidation phase (Cycles 4 to 9) and maintenance phase (Cycles 10 to 20). At the end of the 20 cycles, participants will remain on ponatinib or imatinib (administered as a single agent). The dose of ponatinib in consolidation and maintenance phase will start with the last dose given in the previous phase. The dose can be modified based on MRD-negative CR results. This multi-center trial will be conducted in Argentina, Australia, Austria, Belarus, Brazil, Bulgaria, Canada, Chile, France, Mexico, Greece, Italy, Japan, Korea, Republic Of, Poland, Romania, Russia, Spain, Taiwan, Province Of China, Turkey, Finland and the United States. Participants including those who achieve a clinical response, may receive study drug until they are deceased, have failed to achieve the primary endpoint, have experienced relapse from CR or have progressive disease, have an unacceptable toxicity, have withdrawn consent, have proceeded to HSCT, or until the sponsor terminates the study, whichever occurs first. After disease progression, all participants will be contacted every 3 months for survival follow-up. Participants will be followed until completion of the study or until the participant's death has been reported.
Source references
references
  1. citation
    Ashaye A, Shi L, Aldoss I, Montesinos P, Vachhani P, Rocha V, Papayannidis C, Leonard JT, Baer MR, Ribera JM, McCloskey J, Wang J, Rane D, Guo S. Quality-Adjusted Time Without Symptoms of Disease or Toxicity (Q-TWiST) in Patients With Newly Diagnosed Philadelphia Chromosome-Positive Acute Lymphoblastic Leukemia: A Comparison of Ponatinib Versus Imatinib. Cancer Med. 2025 Apr;14(7):e70780. doi: 10.1002/cam4.70780.
    pmid
    40165400
    type
    DERIVED
  2. citation
    Hanley MJ, Larson TR, Diderichsen PM, Largajolli A, Hui K, Srimani J, Wang B, Vorog A, Gupta N. Population Pharmacokinetic and Exposure-Response Analyses for Ponatinib in the Phase 3 PhALLCON Study. Clin Transl Sci. 2025 Mar;18(3):e70175. doi: 10.1111/cts.70175.
    pmid
    40025846
    type
    DERIVED
  3. citation
    Jabbour E, Kantarjian HM, Aldoss I, Montesinos P, Leonard JT, Gomez-Almaguer D, Baer MR, Gambacorti-Passerini C, McCloskey J, Minami Y, Papayannidis C, Rocha V, Rousselot P, Vachhani P, Wang ES, Wang B, Hennessy M, Vorog A, Patel N, Yeh T, Ribera JM. Ponatinib vs Imatinib in Frontline Philadelphia Chromosome-Positive Acute Lymphoblastic Leukemia: A Randomized Clinical Trial. JAMA. 2024 Jun 4;331(21):1814-1823. doi: 10.1001/jama.2024.4783.
    pmid
    38722621
    type
    DERIVED
Source notices and limitations
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        14 CLINICAL STUDIES Newly Diagnosed Ph+ ALL The efficacy of ICLUSIG in combination with chemotherapy was evaluated in PhALLCON (NCT03589326), a randomized, active-controlled, multicenter, open-label trial of 245 patients with newly diagnosed Ph+ ALL. Randomization was stratified by age at the time
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    Preserved source evidence · Not medical advice