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About
This phase II trial studies the side effects and how well combination chemotherapy and ponatinib hydrochloride work in treating patients with acute lymphoblastic leukemia. Drugs used in chemotherapy, such as cyclophosphamide, vincristine sulfate, doxorubicin hydrochloride, and dexamethasone, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Ponatinib hydrochloride may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving combination chemotherapy and ponatinib hydrochloride may be an effective treatment for acute lymphoblastic leukemia.
Full description
PRIMARY OBJECTIVES:
I. To evaluate the clinical efficacy (event-free survival) of an intensive short-term chemotherapy regimen (hyperfractionated cyclophosphamide-vincristine sulfate-Adriamycin [doxorubicin hydrochloride]-dexamethasone [hyper-CVAD] program) given in combination with the tyrosine kinase inhibitor ponatinib hydrochloride (ponatinib) for Philadelphia (Ph)-positive and/or BCR-ABL-positive acute lymphoblastic leukemia (ALL).
II. To evaluate other clinical efficacy endpoints (overall response rate and survival) and safety of the regimen.
OUTLINE:
ODD CYCLES (1, 3, 5, and 7): Patients receive cyclophosphamide intravenously (IV) over 3 hours every 12 hours on days 1-3, doxorubicin hydrochloride IV continuously over 24 hours on day 4, vincristine sulfate IV over 30 minutes on days 1 and 11, dexamethasone IV over 30 minutes or orally (PO) once daily (QD) on days 1-4 and 11-14, and ponatinib hydrochloride PO QD on days 1-14 of cycle 1 and continuously in cycles 3, 5, and 7. Patients with CD20 expression may also receive rituximab IV on days 1 and 11 of cycle 1 and 3. Treatment repeats every 3-4 weeks for up to 8 cycle in the absence of disease progression or unacceptable toxicity.
EVEN CYCLES (2, 4, 6, and 8): Patients receive methotrexate IV over 24 hours on day 1, ponatinib hydrochloride PO QD continuously, and cytarabine IV over 3 hours every 12 hours on days 2 and 3. Patients with CD20 expression may also receive rituximab IV on days 1 and 8 of cycle 2 and 4. Treatment repeats every 3-4 weeks for up to 8 cycle in the absence of disease progression or unacceptable toxicity.
MAINTENANCE THERAPY: Patients receive vincristine sulfate IV on day 1, prednisone PO daily on days 1-5, and ponatinib hydrochloride PO QD on days 1-28. Cycle repeat every 28 days for 24 months in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up at 30 days and then every 6 months for up to 24 months.
Enrollment
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Inclusion criteria
Diagnosis of one of the following:
Previously untreated Ph-positive ALL [either t(9;22) and/or bcr-abl positive] (includes patients initiated on first course of hyper-CVAD before cytogenetics known) or with lymphoid accelerated or blast phase chronic myelogenous leukemia (CML)
Previously treated Ph-positive ALL or CML (in accelerated phase or blast phase), after 1-2 courses of chemotherapy with or without other tyrosine kinase inhibitors (TKIs)
Performance status ≤ 2 (Eastern Cooperative Oncology Group [ECOG] scale, Appendix E)
Adequate liver function as defined by the following criteria:
Total serum bilirubin ≤ 1.5 x upper limit of normal (ULN), unless due to Gilbert's syndrome
Alanine aminotransferase (ALT) ≤ 2 x ULN
Aspartate aminotransferase (AST) ≤ 2.5 x ULN
Adequate pancreatic function as defined by the following criteria:
Serum lipase and amylase ≤ 1.5 x ULN
For females of childbearing potential, a negative pregnancy test must be documented prior to randomization
Female and male patients who are fertile must agree to use an effective form of contraception with their sexual partners from randomization through 4 months after the end of treatment
Adequate cardiac function as assessed clinically by history and physical examination
Signed informed consent
Exclusion criteria
Active serious infection not controlled by oral or intravenous antibiotics
History of acute pancreatitis within 1 year of study or history of chronic pancreatitis
History of alcohol abuse
Uncontrolled hypertriglyceridemia (triglycerides > 450 mg/dL)
Active secondary malignancy other than skin cancer (e.g., basal cell carcinoma or squamous cell carcinoma) that in the investigator's opinion will shorten survival to less than 1 year
Active grade III-V cardiac failure as defined by the New York Heart Association criteria
Clinically significant, uncontrolled, or active cardiovascular disease, specifically including, but not restricted to:
Patients currently taking drugs that are generally accepted to have a risk of causing torsades de pointes (unless these can be changed to acceptable alternatives)
Taking any medications or herbal supplements that are known to be strong inhibitors of cytochrome P450, family 3, subfamily A, polypeptide 4 (CYP3A4) within at least 14 days before the first dose of ponatinib
Prior history of treatment with ponatinibfor > 1 month; patient who has been treated with ponatinib for 1 month prior starting the treatment is eligible
Treatment with any investigational antileukemic agents or chemotherapy agents in the last 7 days before study entry, unless full recovery from side effects has occurred or patient has rapidly progressive disease judged to be life-threatening by the investigator; patient who has been treated with ponatinib for 1 month prior starting the treatment is eligible
Pregnant and lactating women will not be eligible; women of childbearing potential should have a negative pregnancy test prior to entering on the study and be willing to practice methods of contraception; women do not have childbearing potential if they have had a hysterectomy or are postmenopausal without menses for 12 months; in addition, men enrolled on this study should understand the risks to any sexual partner of childbearing potential and should practice an effective method of birth control
History of significant bleeding disorder unrelated to cancer, including:
Patients with documented significant pleural or pericardial effusions unless they are thought to be secondary to their leukemia
Primary purpose
Allocation
Interventional model
Masking
88 participants in 1 patient group
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Central trial contact
Elias Jabbour
Data sourced from clinicaltrials.gov
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