Study of Carfilzomib in Combination With Induction Chemotherapy in Children With Relapsed or Refractory Acute Lymphoblastic Leukemia

  • STATUS
    Recruiting
  • End date
    Feb 22, 2026
  • participants needed
    118
  • sponsor
    Amgen
Updated on 22 March 2022

Summary

The purpose of Phase 1b of this study is to:

  • Asses the safety, tolerability and activity of carfilzomib, alone and in combination with induction chemotherapy, in children with relapsed or refractory acute lymphoblastic leukemia (ALL).
  • Determine the maximum tolerated dose (MTD) and to recommend a phase 2 dose of carfilzomib in combination with induction chemotherapy.

The purpose of Phase 2 of this study is to compare the rate of complete response (CR) of carfilzomib in combination with vincristine, dexamethasone, PEG asparaginase, daunorubicin (VXLD) at the end of induction therapy to an appropriate external control.

Details
Condition Acute Lymphoblastic Leukemia (ALL)
Treatment cyclophosphamide, cytarabine, Dexamethasone, vincristine, Mitoxantrone, Daunorubicin, PEG-asparaginase, Carfilzomib, 6-mercaptopurine, Intrathecal (IT) Methotrexate, Intrathecal Triple Therapy (Intrathecal Cytarabine, Hydrocortisone, and Methotrexate)
Clinical Study IdentifierNCT02303821
SponsorAmgen
Last Modified on22 March 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Age 21 years or younger at the time of initial ALL diagnosis and age > 1 year at the time of study treatment initiation
Subjects must have a diagnosis of relapsed or refractory ALL with ≥ 5% blasts in the bone marrow (M2 or M3 disease), with or without extramedullary disease
To be eligible, subjects must have had 1 or more prior therapeutic attempts, defined
as
Early first relapse (< 36 months from original diagnosis) after achieving a CR (B-ALL) or first relapse any time following the original diagnosis after achieving a CR (T-ALL)
First refractory bone marrow relapse occurring any time after original diagnosis after achieving a CR (ie, ≥1 failed attempt to induce a second remission) OR
Relapse after achieving a CR following the first or subsequent relapse (i.e., ≥ 2 relapses) OR
Failing to achieve a CR from original diagnosis after at least 1 induction attempt
Subjects must have fully recovered from the acute toxic effects of all previous
chemotherapy, immunotherapy, or radiotherapy treatment before enrollment
Phase 2 Inclusion Criteria
Subjects must have a serum creatinine level that is ≤ 1.5 × institutional upper limit of normal (ULN) according to age. If serum creatinine level is > 1.5 × ULN, the subject must have a calculated creatinine clearance or radioisotope glomerular filtration rate (GFR) ≥ 70 mL/min/1.73 m2
Subject's legally acceptable representative has provided informed consent when the subject is legally too young to provide informed consent and the subject has provided written assent based on local regulations and/or guidelines prior to any study-specific activities/procedures being initiated
Adequate liver function, defined as both of the following
Total bilirubin ≤ 1.5 × institutional ULN except in the presence of Gilbert Syndrome
Subjects must be diagnosed with relapsed or refractory relapsed ALL
Alanine aminotransferase (ALT) ≤ 5 × institutional ULN
Performance status: Karnofsky or Lansky scores ≥ 50 for subjects > 16 years old or ≤
years old, respectively
Age greater than or equal to 1 month to less than 21 years. Subjects greater than or equal to 18 years must have had their original diagnosis at less than 18 years of age
Subjects must have a documented first remission, less than or equal to 5% blasts in the bone marrow (M1 bone marrow) and no evidence of extramedullary disease
T-cell ALL with bone marrow relapse (defined as greater than or equal to 5% leukemia blasts in bone marrow) or refractory relapse with or without extramedullary disease
OR B-cell ALL bone marrow relapse or refractory relapse (defined as greater
than or equal to 5% leukemia blasts in bone marrow) after having received a
targeted B-cell immune therapy (eg, blinatumomab, inotuzumab or a CAR-T
therapy) with or without extramedullary disease
Adequate liver function: bilirubin less than or equal to 1.5 x upper limit of normal (ULN), alanine aminotransferase (ALT) less than or equal to 5 x ULN
Adequate renal function: serum creatinine less than or equal to 1.5 x ULN or glomerular filtration rate (GFR) greater than or equal to 70 mL/min/1.73 m^2; or for children less than 2 years of age, greater than or equal to 50 mL/min/1.73 m^2
Adequate cardiac function: shortening fraction greater than or equal to 30% or ejection fraction greater than or equal to 50%
Karnofsky (subjects greater than or equal to 16 years of age) or Lansky (subjects 12 months to less than 16 years of age) performance status greater than or equal to 50%
Life expectancy of greater than 6 weeks per investigator's judgement at time of screening
Subjects must have fully recovered from the acute toxic effects of all previous chemotherapy, immunotherapy, or radiotherapy treatment before enrollment (for example: recovery from gastrointestinal toxicity may occur more rapidly than less reversible organ toxicities such as sinusoidal obstruction syndrome or non-infectious pneumonitis, for serious prior toxicities recommended discussion with Amgen medical monitor)

Exclusion Criteria

Known allergy to any of the drugs used in the study (Subjects who have had a previous allergy to PEG-asparaginase and if able, may receive Erwinia asparaginase at the investigator's discretion)
Known allergy to Captisol (a cyclodextrin derivative used to solubilize carfilzomib)
Left ventricular fractional shortening < 30%
Active graft-versus-host disease requiring systemic treatment
Positive culture for or other clinical evidence of infection with bacteria or fungus within 14 days of the initiation of study treatment
Down Syndrome
Prior therapy restrictions
Subjects must have completed therapy with granulocyte-colony stimulating factor (G-CSF) or other myeloid growth factors at least 7 days before study treatment initiation, or at least 14 days before study treatment initiation, if pegylated myeloid growth factors were administered
Subjects must have completed any type of active immunotherapy (e.g., tumor vaccines) at least 42 days before study treatment initiation
Subjects must have received the last dose of a non-monoclonal antibody biologic agent at least 7 days before study treatment initiation
At least 3 antibody half-lives must have elapsed since the last dose of monoclonal antibody (e.g., 66 days for rituximab and 69 days for epratuzumab) before subjects may initiate study treatment
Subjects must not have received other antineoplastic agents with therapeutic intent, excluding hydroxyurea and antimetabolites administered as part of maintenance chemotherapy, within 7 days prior to study treatment initiation
Hepatitis B infection with positive hepatitis B DNA
History of ≥ Grade 2 pancreatitis
Prior treatment with a proteasome inhibitor (other than carfilzomib) within less than 3 months of enrollment or to which a subject did not respond (response is defined as bone marrow with less than 5% blasts)
Phase 2 Exclusion Criteria
Prior treatment with carfilzomib
Less than 30 days from discontinuation of immune suppressive therapy administered for the treatment of acute or chronic GVHD
Treatment with a chemotherapy regimen including a vinca alkaloid, steroid, L-asparaginase, and anthracycline combination with or without other chemotherapy agents within 2 months of enrollment (eg VXLD, VPLD, R3)
Intolerance, hypersensitivity, or inability to receive any of the chemotherapy components of the VXLD regimen. An exception is allowed for allergy to asparaginase products if Erwinia asparaginase is unable to be administered
Subjects with less than 3 antibody half-lives since the last dose of monoclonal antibody (eg, 66 days for rituximab, 69 days for epratuzumab, inotuzumab for 36 days), prior to first dose of investigational product must be discussed with the Amgen medical monitor and may be allowed to enroll based on extent of disease or evidence of rapidly rising peripheral or bone marrow blast counts
Autologous HSCT within 6 weeks prior to start of study treatment
Allogeneic HSCT within 3 months prior to start of study treatment
Active GVHD requiring systemic immune suppression
History of grade greater than or equal to 2 pancreatitis within 6 months to screening
Isolated extramedullary relapse
Unresolved toxicities from prior anticancer therapy, defined as not having resolved to CTCAE version 4.03 grade 1 or to levels dictated in the eligibility criteria apart from alopecia or toxicities from prior anticancer therapy that are considered irreversible and do not trigger another exclusion criterion (defined as having been present and stable for greater than 4 weeks)
Positive bacterial or fungal infection within 14 days of enrollment (except for documented line infection, line has been removed, and blood culture after line removal is negative for 5 days prior to first dose of induction therapy). Antibiotics may be administered for prophylaxis as per institutional standards up to and after enrollment
Active viral infection, including but not limited to cytomegalovirus (CMV), Hepatitis B infection with positive serum hepatitis surface antigen or hepatitis B DNA, HIV, Hepatitis C with detectable hepatitis C RNA. Subjects who have previously received a stem cell transplant must be screened for CMV infection, unless both subject and donor are known to be CMV negative
Cell-based immunotherapy (eg, donor leucocyte infusion, CAR-T cells, tumor vaccines) within 42 days prior to first dose of investigational product. If the Amgen medical monitor agrees, an exception may be granted to the 42-day requirement for subjects with rapidly rising peripheral or bone marrow blast counts
Currently receiving treatment in another investigational device or product study, or less than 14 days since ending treatment on another investigational device or product study
Down's syndrome
Uncontrolled arrhythmias or screening ECG with corrected QT interval (QTc) of greater than 470 msec
Presence of another active cancer
Antitumor therapy (chemotherapy, investigational agents, molecular-targeted therapy) within 7 days of day 1 of induction. Exception: hydroxyurea to control peripheral blood leukemic cell counts is allowed until start of investigational product
History or evidence of any other clinically significant disorder, condition or disease (with the exception of those outlined above) that, in the opinion of the investigator or Amgen physician, if consulted, would pose a risk to subject safety or interfere with the study evaluation, procedures or completion
Known allergy to captisol (a cyclodextrin derivative used to solubilize carfilzomib; for a complete listing of Captisol-enabled drugs, see the Ligand Pharmaceuticals, Inc. website)
Female subject is pregnant or breastfeeding or planning to become pregnant or breastfeed during treatment and for an additional 6 months after the last dose of any study treatment or for 12 months after last dose of cyclophosphamide if administered during optional consolidation cycle
Female subjects of childbearing potential unwilling to use 1 highly effective method of contraception during treatment and for an additional 6 months after the last dose of any study treatment or for 12 months after last dose of cyclophosphamide if administered during optional consolidation cycle
Female subjects of childbearing potential with a positive pregnancy test assessed at Screening by a serum or urine pregnancy test
Male subjects with a female partner of childbearing potential who are unwilling to practice sexual abstinence (refrain from heterosexual intercourse) or use a condom with spermicide during treatment and for an additional 6 months after the last dose of any study treatment, even if they have undergone a successful vasectomy
Male subjects with a pregnant partner who are unwilling to practice abstinence or use a condom with spermicide during treatment, for duration of pregnancy, and for an additional 6 months after the last dose of any study treatment
Male subjects unwilling to abstain from donating semen or sperm during treatment and for an additional 6 months after the last dose of any study treatment
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