E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
acute lymphoblastic leukemia |
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E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10000845 |
E.1.2 | Term | Acute lymphoblastic leukemia |
E.1.2 | System Organ Class | 100000004864 |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Phase 1 - To determine the RP2D of ponatinib (tablet and AAF) in combination with chemotherapy.
Phase 2 - To determine the efficacy of ponatinib in combination with chemotherapy as measured by the rate of CR at the end of the reinduction block. |
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E.2.2 | Secondary objectives of the trial |
Phase 1 - To define and describe the phase 1 efficacy of ponatinib (tablet and AAF) in combination with chemotherapy. - To characterize BCR-ABL1 domain mutations both prior to and following ponatinib treatment.
Phase 2 - To describe the proportion of patients in continued CR or who achieve CR at the end of consolidation and the proportion of patients with minimal residual disease (MRD) status <0.01% at the end of each treatment block. - To determine the proportion of patients who relapsed or progressed. - To determine event-free survival (EFS), progression-free survival (PFS), and overall survival (OS) at 6 months, 1 year, 18 months, 2 years, and 3 years. - To determine duration of response (for CR). - To determine the proportion of patients who underwent hematopoietic stem cell transplantation (HSCT) following study treatment. - To characterize BCR-ABL1 domain mutations both prior to and following ponatinib treatment. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Diagnosis: Patients must have a diagnosis of ALL or MPAL with definite evidence of BCR-ABL1 fusion (Ph) or Ph-like ALL (US only) with targetable kinase-activating lesions and either (i) or (ii) as follows: (i) For non-US sites: patients who have relapsed or are resistant or intolerant to at least 1 prior therapy that contained a BCR-ABL1–targeted TKI; OR For US sites: patients who have relapsed or are resistant or intolerant to at least 1 prior therapy that contained a second-generation BCR-ABL1–targeted TKI (ie, dasatinib, nilotinib, and bosutinib); OR (ii) Have a BCR-ABL1 T315I mutation. Referring institutions laboratory results will be accepted for enrollment.
a. Patients in relapse (post 0 or 1 HSCT). b. Patients with BCR-ABL1 T315I mutation, irrespective of relapse, resistance/intolerance, or transplant status, and irrespective of any prior TKI use. c. Patients with Ph-like ALL (US only) with TKI-targetable lesions involving any of the following kinase genes: ABL1, ABL2, CSF1R, and PDGFRB. d. Patients with bone marrow relapse defined as: M2 marrow (5%-24% lymphoblasts) by morphology with confirmatory testing consisting of ≥5% lymphoblasts by flow cytometry or BCR-ABL1 fluorescence in situ hybridization (FISH) or ≥10-2 leukemic clone identified by immunoglobulin heavy chain–T-cell receptor polymerase chain reaction (PCR) or M3 marrow (≥25% lymphoblasts) by morphology. e. Patients with combined bone marrow and extramedullary disease. 2. Age: Patients must be ≥1 and ≤21 years of age at the time of enrollment. 3. Performance Status: Karnofsky performance status ≥50% for patients >16 years of age or Lansky Play Scale ≥50% for patients ≤16 years of age. 4. Patients must have recovered to less than Grade 2 National Cancer Institute Common Terminology Criteria for Adverse Events version 5, or to baseline, from any nonhematologic toxicities (except alopecia) due to previous therapy. 5. Patients must meet the following criteria related to prior therapies: Cytoreduction with hydroxyurea: Hydroxyurea can be initiated and continued for up to 24 hours before the start of protocol therapy. Patients who relapsed while receiving cytotoxic therapy: At least 14 days must have passed since the completion of the last dose of chemotherapy before the first dose of ponatinib can be given except for the following: intrathecal chemotherapy and/or maintenance therapy such as vincristine, mercaptopurine, methotrexate, or glucocorticoids. There is no waiting period for those relapsing on maintenance-like therapy. HSCT: Patients who have experienced relapse after a HSCT are eligible, provided they have no evidence of acute or chronic graft-versus-host disease (GVHD), are not receiving GVHD prophylaxis or treatment, and are at least 90 days posttransplant at the time of enrollment. Hematopoietic growth factors: Before the first dose of ponatinib, at least 7 days must have passed since completion of therapy with granulocyte colony-stimulating factor or other growth factors, and at least 14 days must have passed since completion of therapy with pegfilgrastim. Biologics and targeted therapies: Before the first dose of ponatinib, at least 7 days must have passed since the last dose of a biologic agent. For agents that have known AEs occurring beyond 7 days after administration, this period must be extended beyond the time during which AEs are known to occur. The duration of this interval must be discussed with the sponsor’s medical monitor/designee. Monoclonal antibodies: After the last dose of monoclonal antibody, at least 3 half-lives of the administered antibody must have passed before the first dose of ponatinib. Immunotherapy: Before the first dose of ponatinib, at least 30 days must have passed after the completion of any type of immunotherapy (eg, tumor vaccines, chimeric antigen receptor T-cell [CAR-T cell]). Immunosuppressive therapy: Before the first dose of ponatinib, at least 14 days must have passed after the completion of immunosuppressive therapy (including regimens following stem cell transplant). Radiotherapy: No washout period is necessary for radiation given to any extramedullary site other than central nervous system (CNS); ≥90 days must have passed if patient received prior total body irradiation or craniospinal or cranial radiotherapy. Anthracyclines: Patients must have had a lifetime exposure of <400 mg/m2 of doxorubicin equivalents of anthracyclines. 6. Patients must have adequate renal and hepatic function. 7. No clinical, radiological or laboratory evidence of pancreatitis, including: a. Serum lipase must be <2 times the ULN, and b. Serum amylase must be <2 times the ULN. 8. Adequate cardiac function defined as shortening fraction ≥27% by echocardiogram (ECHO) OR left ventricular ejection fraction of ≥50% by multigated acquisition scan (MUGA). 9. Normal QT interval corrected per Fridericia method (QTcF) on screening electrocardiogram (ECG), defined as QTcF of ≤450 ms. |
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E.4 | Principal exclusion criteria |
1. A history or current diagnosis of Burkitt leukemia/lymphoma or mature B-cell leukemia. 2. A history or current diagnosis of CML. 3. Diagnosis of ALL, MPAL, or Ph-like ALL (US only) with targetable kinase-activating lesions after treatment with cytotoxic therapy for another cancer. 4. Diagnosis of another concurrent primary malignancy. 5. Clinically significant cardiovascular disease, including but not limited to: a. Any history of myocardial infarction (MI) or unstable angina. b. History of or presence of heart block, and/or clinically significant ventricular or atrial arrhythmias. c. Uncontrolled hypertension, defined as persistent elevation of systolic and/or diastolic blood pressures to ≥95th percentile based on age, sex, and height percentiles despite appropriate antihypertensive management. 6. Current systemic use of drug(s) that are known to have a risk of causing prolonged corrected QT interval (QTc) or torsades de pointes unless drug(s) can be changed to acceptable alternatives (ie, an alternate class of agents that do not affect the cardiac conduction system) or the patient can safely discontinue the drug(s). 7. Uncontrolled hypertriglyceridemia (triglycerides ≥450 mg/dL). (Patients with triglycerides ≥450 mg/dL may be enrolled in the absence of any significant cardiovascular risk after discussion with the sponsor’s medical monitor/designee) 8. Current systemic use of any medications or herbal supplements that are known to be strong inhibitors or strong inducers of CYP3A within 7 days before the first dose of study drug. 9. Previous treatment with ponatinib. 10. Planned non-protocol chemotherapy, radiation therapy, another investigational agent, or immunotherapy while patient is on study treatment. 11. Known allergy to any of the drugs (active or excipient) used in the study. 12. Known gastrointestinal disease or gastrointestinal procedure that could interfere with the oral absorption of ponatinib. 13. Patients with DNA fragility syndromes, such as Fanconi anemia and Bloom syndrome. 14. Patients with Down syndrome. 15. Ongoing or active systemic infection, known seropositive HIV, or known active hepatitis B or C infection. 16. Patients with pre-existing significant CNS pathology including: history of severe brain injury, dementia, cerebellar disease, organic brain syndrome, psychosis, coordination /movement disorder, or autoimmune disease with CNS involvement are not eligible. 17. Patients with a history of cerebrovascular ischemia/hemorrhage with residual deficits are not eligible. (Patients with a history of cerebrovascular ischemia/hemorrhage remain eligible provided all neurologic deficits have resolved.) 18. Uncontrolled seizure disorder. (Patients with seizure disorders that do not require antiepileptic drugs, or are well controlled with stable doses of antiepileptic drugs are eligible.) 19. History of severe coagulopathy or vascular events. 20. Any condition or illness that, in the opinion of the investigator or sponsor, would compromise patient safety or interfere with the evaluation of the safety or efficacy of ponatinib. 21. Admission or evidence of illicit use, drug abuse, or alcohol abuse. 22. Pregnancy and breastfeeding exclusions: a. Female patients who are pregnant are excluded since fetal toxicities and teratogenic effects have been noted for several of the study treatments. A pregnancy test is required for female patients of childbearing potential. b. Lactating women who plan to breastfeed their infants. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Phase 1 - RP2D of ponatinib (tablet and AAF) in combination with chemotherapy.
Phase 2 - CR at the end of the reinduction block. CR is defined as <5% blasts in bone marrow, normal maturation of all cellular components in the bone marrow, no evidence of extramedullary disease, absolute neutrophil count (ANC) >1000/μL, and platelet count of >100,000/μL |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
At the end of the reinduction block, both prior to and following ponatinib treatment.
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E.5.2 | Secondary end point(s) |
Phase 1 - CR at the end of the reinduction block. CR is defined as <5% blasts in bone marrow, normal maturation of all cellular components in the bone marrow, no evidence of extramedullary disease, ANC >1000/μL, and platelet count of >100,000/μL. - Characterization of BCR-ABL1 domain mutations both prior to and following ponatinib treatment.
Phase 2 - Proportion of patients in continued CR or who achieve CR at the end of consolidation and the proportion of patients with MRD-negative status (<0.01%) at the end of each treatment block. - Proportion of patients who relapsed or progressed. - EFS, PFS, and OS at 6 months, 1 year, 18 months, 2 years, and 3 years - Duration of response (for CR). - Proportion of patients who underwent HSCT following study treatment. - Characterization of BCR-ABL1 domain mutations both prior to and following ponatinib treatment.
Phase 1 PK Endpoint - Summary statistics of ponatinib PK parameters including maximum observed plasma concentration (Cmax), time of first occurrence of Cmax (Tmax), and area under the plasma concentration–time curve from time 0 to the time of the last quantifiable concentration (AUClast).
Phase 1 and Phase 2 Safety Endpoint - Adverse events (AEs), serious adverse events (SAEs), arterial occlusive events (AOEs), venous thrombotic/embolic events (VTEs), and any other AEs of special interest (AESIs). |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
At the end of the reinduction block, both prior to and following ponatinib treatment. |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | Yes |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | Yes |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | Yes |
E.7.1.3.1 | Other trial type description |
safety, tolerability, PK and efficacy of the IP + chemotherapy in pediatric patients |
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E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
Standard of care / Backbone therapy |
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E.8.2.4 | Number of treatment arms in the trial | 1 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 24 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Argentina |
Australia |
Brazil |
Canada |
China |
Czech Republic |
France |
Germany |
Hong Kong |
Italy |
Korea, Republic of |
Mexico |
Netherlands |
Poland |
Spain |
United Kingdom |
United States |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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Last Subject Last Visit (follow-up) |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 6 |
E.8.9.1 | In the Member State concerned months | 10 |
E.8.9.1 | In the Member State concerned days | 21 |
E.8.9.2 | In all countries concerned by the trial years | 7 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |