A Phase 2 Study of Ruxolitinib With Chemotherapy in Children With Acute Lymphoblastic Leukemia
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ClinicalTrials.gov Identifier: NCT02723994 |
Recruitment Status :
Active, not recruiting
First Posted : March 31, 2016
Last Update Posted : February 21, 2023
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Condition or disease | Intervention/treatment | Phase |
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Leukemia | Drug: Ruxolitinib Drug: Asparaginase Erwinia Chrysanthemi Drug: Cyclophosphamide Drug: Cytarabine Drug: Dexamethasone Drug: Doxorubicin Drug: Leucovorin Calcium Drug: Mercaptopurine Drug: Methotrexate Drug: Pegaspargase Drug: Prednisone Drug: Thioguanine Drug: Vincristine Sulfate | Phase 2 |
Expanded Access : An investigational treatment associated with this study has been approved for sale to the public. More info ...
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 171 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase 2 Study of the JAK1/JAK2 Inhibitor Ruxolitinib With Chemotherapy in Children With De Novo High-Risk CRLF2-Rearranged and/or JAK Pathway-Mutant Acute Lymphoblastic Leukemia |
Actual Study Start Date : | September 30, 2016 |
Estimated Primary Completion Date : | November 28, 2025 |
Estimated Study Completion Date : | November 28, 2025 |

Arm | Intervention/treatment |
---|---|
Experimental: Ruxolitinib in combination with chemotherapy |
Drug: Ruxolitinib
In Part 1, ruxolitinib will be administered at a protocol-defined starting dose in combination with chemotherapy, with dose escalation and de-escalation following the rolling 6 study design. The established recommended starting dose will be taken forward into Part 2.
Other Name: INCB018424 Drug: Asparaginase Erwinia Chrysanthemi Drug: Cyclophosphamide Drug: Cytarabine Drug: Dexamethasone Drug: Doxorubicin Drug: Leucovorin Calcium Drug: Mercaptopurine Drug: Methotrexate Drug: Pegaspargase Drug: Prednisone Drug: Thioguanine Drug: Vincristine Sulfate |
- Part 1: Safety/tolerability of ruxolitinib in combination with chemotherapy as measured by adverse events (AEs), vital signs, clinical laboratory tests, and echocardiograms [ Time Frame: Part 1: AEs assessed from screening through up to 30 days after the last dose of study drug, expected to be 26 months (females) or 38 months (males) ]
- Part 2: Efficacy of ruxolitinib in combination with chemotherapy as measured by Event-free survival, defined as the percentage of patients alive without relapse, progression, or death at 3 years from study Day 1 [ Time Frame: Part 2: assessed at 3 years ]
- Safety and tolerability of the combination treatment for subjects beginning treatment at the recommended dose for Part 2, as assessed by AEs, vital signs, clinical laboratory tests, and echocardiograms [ Time Frame: AEs assessed from screening through up to 30 days after the last dose of study treatment, expected to be 26 months (females) or 38 months (males) ]

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Ages Eligible for Study: | 1 Year to 21 Years (Child, Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Eligible for study when participant is 1 year to 21 years at the time of diagnosis
- Eligible Ages in Australia and Canada; 2 years to 21 years
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De novo high-risk (HR) Ph-like B-ALL for which any of following criteria are present at diagnosis:
- Age ≥ 10 years
- White blood cell (WBC) ≥ 50 × 10^3/μL
- CNS3 leukemia at diagnosis
- Systemic steroid pretreatment without presteroid WBC documentation
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Diagnostic bone marrow or peripheral blood sample must have gene expression profiling and downstream genetic testing performed by submitting diagnostic specimens under the COG AALL08B1 or APEC14B1 biology studies, or AALL1131 or its successor study. Specimens must demonstrate a Ph-like expression profile (ie, LDA-positive) as tested by low density microarray testing at the COG ALL reference laboratory or TriCore laboratory at the University of New Mexico AND must contain 1 of the following genetic lesions: (determined at COG ALL reference laboratories, or equivalent CAP/CLIA-certified laboratories approved by the medical monitor:
- CRLF2 rearrangement* with confirmed JAK1 or JAK2 mutation (JAK+)
- CRLF2 rearrangement* without JAK mutation
- Other JAK pathway alterations (eg, JAK2 fusions, EPOR fusions, SH2B3 deletions, IL7RA mutations) with or without CRLF2-R, or CRLF2-R with unknown JAK status*† as determined by a COG ALL Reference Laboratory
- Completed a 4-drug Induction therapy regimen (modified aBFM regimen or equivalent) in Study AALL1131 or its successor study, or as per the institutional standard of care for HR B-ALL and have had end-Induction minimal residual disease (MRD) assessed
- Male and female subjects of reproductive non childbearing potential or willing to take appropriate precautions to avoid pregnancy or fathering a child for the duration of study participation
Exclusion Criteria:
- Receipt of any other cytotoxic chemotherapy before Induction therapy, with exception of hydroxyurea or steroid pretreatment
- Trisomy 21 (Down syndrome)
- BCR-ABL1-rearranged (Ph+) ALL
- Calculated creatinine clearance or radioisotope glomerular filtration rate < 70 mL/min/1.73 m^2
- Alanine aminotransferase ≥ 5 × upper limit of normal (ULN) for age
- Direct bilirubin ≥ 1.5 × ULN (may be assumed if total bilirubin is below ULN)
- History or evidence of cirrhosis
- Platelet count < 75 × 10^3/μL
- Absolute neutrophil count (ANC) < 750/μL
- Positive screen for hepatitis B or C
- Known human immunodeficiency virus infection

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02723994

Study Director: | Albert Assad, MD | Incyte Corporation | |
Study Chair: | Sarah Tasian, MD | Children's Hospital of Philadelphia, Philadelphia, PA |
Responsible Party: | Incyte Corporation |
ClinicalTrials.gov Identifier: | NCT02723994 |
Other Study ID Numbers: |
INCB 18424-269 AALL1521 ( Other Identifier: Children's Oncology Group ) |
First Posted: | March 31, 2016 Key Record Dates |
Last Update Posted: | February 21, 2023 |
Last Verified: | February 2023 |
B-cell acute lymphoblastic leukemia (ALL) pediatric multi-agent chemotherapy JAK inhibitor |
Leukemia Precursor Cell Lymphoblastic Leukemia-Lymphoma Leukemia, Lymphoid Neoplasms by Histologic Type Neoplasms Lymphoproliferative Disorders Lymphatic Diseases Immunoproliferative Disorders Immune System Diseases Leucovorin Cytarabine Dexamethasone Prednisone Cyclophosphamide Doxorubicin |
Methotrexate Vincristine Asparaginase Mercaptopurine Pegaspargase Thioguanine Levoleucovorin Immunosuppressive Agents Immunologic Factors Physiological Effects of Drugs Antirheumatic Agents Antineoplastic Agents, Alkylating Alkylating Agents Molecular Mechanisms of Pharmacological Action Antineoplastic Agents |