PRIMARY OBJECTIVES:
I. To confirm tolerability of the combination regimen with the addition of inotuzumab
ozogamicin to the pediatric-inspired regimen of cancer and leukemia group B (CALGB)
10403.
II. To determine whether the addition of inotuzumab ozogamicin significantly improves the
event-free survival (EFS) in patients who achieve an induction response achieved with the
pediatric-inspired regimen of CALGB 10403, without censoring for transplant. (Phase III)
SECONDARY OBJECTIVES:
I. To determine the impact of inotuzumab ozogamicin on disease-free (DFS) and overall
survival (OS) in patients who achieve an induction response.
II. To determine whether the addition of inotuzumab ozogamicin significantly improves the
event-free survival (EFS) in patients who achieve an induction response achieved with the
pediatric-inspired regimen of CALGB 10403, with censoring for transplant.
III. To determine the impact of inotuzumab ozogamicin on minimal residual disease (MRD)
and correlate this with the EFS, DFS and OS.
IV. To determine the prognosis based on patients' low-density array (LDA) gene signature
in terms of EFS, DFS, and OS after treatment with or without inotuzumab ozogamicin when
added to the C10403 backbone regimen.
V. To evaluate the toxicity and tolerability of the addition of inotuzumab ozogamicin to
the pediatric-inspired regimen of CALGB 10403.
TERTIARY OBJECTIVES:
I. To assess both the correlation of MRD post-induction and at sequential timepoints with
LDA signature.
II. To evaluate the influence of MRD status (detectable vs. not and as a continuous
measure) in relation to EFS both in the univariate setting as well as adjusting for other
clinical features including initial white blood cell (WBC), ethnicity, gender and age at
diagnosis.
III. To evaluate the impact of inotuzumab ozogamicin (inotuzumab) on the kinetics of MRD
during treatment with inotuzumab in patients randomized to the experimental treatment
arm.
IV. To perform genomic analyses to identify and evaluate the incidence and clinical
significance of recurring novel fusion genes including those associated with the
BCR-ABL1-like signature and to correlate with MRD status, CR rate, EFS and OS.
V. To assess whether rs4958351 is correlated with L-asp allergic reaction in the
adolescent and young adult (AYA) population.
VI. To assess the incidence of inherited genetic variants in the GR1A1, CEP72, CPA2,
TPMT, NUDT15, GRIN3A, GRIK1, and other genes (which can be found using a whole genome
association study [GWAS]), are correlated with increased rates of target toxicities
including peripheral neuropathy, hepatotoxicity, pancreatitis, myelosuppression,
neurotoxicity, thrombosis, and osteonecrosis, and correlate with treatment
discontinuation and other clinical response parameters including complete response (CR)
rate, EFS, and OS.
VII. To evaluate asparaginase pharmacokinetics in adolescents and young adults, and
investigate its correlation with toxicities and treatment outcomes.
VIII. To investigate the effect of anti-polyethylene glycol (PEG) and anti-agouti
signaling protein (ASP) antibodies (PEG-ASP) on ASP enzyme activity.
IX. To measure adherence to oral 6 mercaptopurine (MP) and methotrexate in AYAs with
acute lymphoblastic leukemia (ALL) and to examine sociodemographic and behavioral
determinants of adherence.
X. To determine the impact of adherence on risk of relapse among AYAs with ALL.
OUTLINE:
COURSE I (REMISSION INDUCTION THERAPY): All patients receive allopurinol orally (PO) once
daily until peripheral blasts and extramedullary disease are reduced and cytarabine
intrathecally (IT) over 1 minute on day 1. Patients also receive daunorubicin
hydrochloride intravenously (IV) and vincristine sulfate IV on days 1, 8, 15 and 22,
dexamethasone PO or IV twice daily (BID) on days 1-7 and 15-21, pegylated L-aspiraginase
IV on day 4, 5, or 6, and methotrexate IT over 1 minute on days 8 and 29. Patients with
central nervous system (CNS) 3 disease receive methotrexate IT over 1 minute also on days
15 and 22. All patients then undergo bone marrow aspirate and biopsy on day 29.
Patients with response to remission induction therapy are randomized to 1 of 2 arms.
Patients with no response are omitted from the study.
ARM I:
COURSE II (REMISSION CONSOLIDATION CHEMOTHERAPY): Patients receive cyclophosphamide IV on
days 1 and 29, cytarabine IV or SC on days 1-4, 8-11, 29-32, and 36-39, mercaptopurine PO
on days 1-14 and 29-42, and vincristine sulfate IV on days 15, 22, 43, and 50. Patients
also receive pegylated L-aspiraginase IV on days 15 and 43, and methotrexate IT on days
1, 8, 15, and 22. Patients with CNS3 receive methotrexate IT only on days 1 and 8. CD20
positive (+) patients receive rituximab IV on days 1, 8, 29, and 36. Patients then
undergo bone marrow aspirate and biopsy on day 56.
COURSE III (INTERIM MAINTENANCE CHEMOTHERAPY): Patients receive vincristine sulfate IV on
days 1, 11, 21, 31, and 41, methotrexate IV and IT on days 1, 11, 21, 31, and 41, and
pegylated L-aspiraginase IV on days 2 and 22. CD20+ patients receive rituximab IV on days
1 and 11.
COURSE IV (DELAYED INTENSIFICATION): Patients receive vincristine sulfate IV on days 1,
8, 15, 43, and 50, dexamethasone PO or IV BID on days 1-7 and 15-21, doxorubicin IV on
days 1, 8, and 15, and pegylated L-aspiraginase IV on day 4, 5, or 6 and day 43. Patients
also receive cyclophosphamide IV on day 29, cytarabine IV or SC on days 29-32 and 36-39,
thioguanine PO on days 29-42 and methotrexate IT on days 1, 29, and 36. CD20+ patients
receive rituximab IV on days 1 and 8. Patients then undergo bone marrow aspirate and
biopsy on day 50.
COURSE V (MAINTENANCE THERAPY): Patients receive vincristine sulfate IV on days 1, 29,
and 57, dexamethasone PO or IV BID on days 1-5, 29-33, and 57-61, and mercaptopurine PO
on days 1-84. Patients also receive methotrexate IT or PO on days 8, 15, 22, 29, 36, 43,
50, 57, 64, 71, and 78. Treatment repeats every 12 weeks for up to 3 years in the absence
of disease progression or unacceptable toxicity.
ARM II: Patients receive inotuzumab ozogamicin IV on days 1, 8, and 15 and undergo bone
marrow aspirate and biopsy on day 28. Treatment repeats every 28 days for up to 2 courses
in the absence of disease progression or unacceptable toxicity. Patients also receive
remission consolidated chemotherapy, interim maintenance chemotherapy, delayed
intensification, and maintenance therapy as in Arm I.
After completion of study treatment, patients are followed up every month for the first
year, every 2 months for the second year, every 3 months for the third year, and every 6
months for the fourth through tenth year.