CLINICAL TRIAL / NCT02981628
Inotuzumab Ozogamicin in Treating Younger Patients With B-Lymphoblastic Lymphoma or Relapsed or Refractory CD22 Positive B Acute Lymphoblastic Leukemia
- Interventional
- Recruiting
- NCT02981628
Contact Information
A Phase 2 Study of Inotuzumab Ozogamicin (NSC# 772518) in Children and Young Adults With Relapsed or Refractory CD22+ B-Acute Lymphoblastic Leukemia (B-ALL)
This phase II trial studies how well inotuzumab ozogamicin works in treating younger patients with B-lymphoblastic lymphoma or CD22 positive B acute lymphoblastic leukemia that has come back (relapsed) or does not respond to treatment (refractory). Inotuzumab ozogamicin is a monoclonal antibody, called inotuzumab, linked to a toxic agent called ozogamicin. Inotuzumab attaches to CD22 positive cancer cells in a targeted way and delivers ozogamicin to kill them.
PRIMARY OBJECTIVE:
I. To determine the morphologic response rate (complete response [CR] + complete response
with incomplete hematologic recovery [CRi]) following one cycle of treatment with
inotuzumab ozogamicin in children with relapsed or refractory CD22+ B acute lymphoblastic
leukemia (B-ALL). (Cohort 1)
SECONDARY OBJECTIVES:
I. To determine the CR/CRi rate following 2 cycles of inotuzumab ozogamicin therapy.
(Cohort 1) II. To determine the safety of single agent inotuzumab ozogamicin administered
at the adult recommended phase 2 dose (RP2D) to pediatric patients with relapsed or
refractory CD22+ B-ALL. (Cohort 1) III. To determine the level of minimal residual
disease (MRD) by flow cytometry in responding patients. (Cohorts 1 and 2) IV. To
determine the incidence, severity, and outcomes of sinusoidal obstruction syndrome (SOS)
of the liver in patients during inotuzumab ozogamicin therapy and following subsequent
treatment, including myeloablative hematopoietic stem cell transplantation (HSCT).
(Cohorts 1 and 2) V. To estimate the 3-year event-free survival (EFS), 3-year overall
survival (OS), and among responders, duration of CR/CRi for pediatric patients with
relapsed or refractory B-ALL treated with inotuzumab ozogamicin. (Cohort 1) VI. To
describe inotuzumab ozogamicin pharmacokinetics and immunogenicity in pediatric patients
in the presence of overt leukemia and in remission. (Cohort 1) VII. To determine the safe
and tolerable dose of inotuzumab ozogamicin in combination with the augmented modified
Berlin-Frankfurt-Munster (mBFM) consolidation chemotherapy backbone. (Cohort 2)
EXPLORATORY OBJECTIVES:
I. To describe the levels of leukemic blast CD22 surface expression and site density, and
to explore the correlation with cytogenetics and clinical outcomes after treatment with
inotuzumab ozogamicin. (Cohorts 1 and 2) II. To explore potential mechanisms of
resistance to inotuzumab ozogamicin therapy including CD22 splice variants and
intracellular signaling pathways. (Cohorts 1 and 2) III. To explore the impact of
inotuzumab ozogamicin on humoral immune function and peripheral B cell populations.
(Cohorts 1 and 2) IV. To describe the level of MRD by next-generation high-throughput
sequencing (HTS) techniques which may detect low level leukemic blast populations that
have altered CD22 expression. (Cohorts 1 and 2) V. To prospectively explore candidate SOS
biomarkers including the endothelial marker of inflammation Angiopoietin 2 (Ang2) and the
hepatic specific complement marker L-ficolin. (Cohorts 1 and 2) VI. To explore the use of
prophylactic ursodeoxycholic acid (UDCA) to prevent hepatic damage and SOS during
inotuzumab ozogamicin therapy and subsequent HSCT. (Cohorts 1 and 2) VII. To describe the
interaction between inotuzumab ozogamicin and chimeric antigen receptor (CAR) T cell
therapy before or after treatment with inotuzumab ozogamicin. (Cohorts 1 and 2) VIII. To
estimate the CR/CRi rate following one cycle of inotuzumab ozogamicin plus augmented mBFM
consolidation chemotherapy (first 42 days) and following 2 cycles within the confines of
a pilot study. (Cohort 2)
OUTLINE: Patients are assigned to 1 of 2 cohorts.
COHORT I: Patients receive inotuzumab ozogamicin intravenously (IV) over 60 minutes on
days 1, 8, and 15 of each cycle. Treatment repeats every 28 days for up to 6 cycles in
the absence of disease progression or unacceptable toxicity. (COMPLETE)
COHORT II: Patients receive inotuzumab ozogamicin IV over 60 minutes on days 1, and 8.
Patients also receive cyclophosphamide IV over 30-60 on day 1; cytarabine IV over 1-30
minutes or subcutaneously (SC) on days 1-4 and 8-11; leucovorin calcium orally (PO) or IV
on days 2, 9, 16, 23 and 37 of cycle 1 and days 9 and 37 of cycle 2; pegaspargase or
calaspargase pegol IV over 1-2 hours or pegaspargase intramuscularly (IM) on day 15; and
vincristine IV on days 15 and 22. Patients receive methotrexate intrathecally (IT) on
days 1, 8 and 36 of cycle 1 and day 36 of cycle 2 for CNS 1 patients, days 1, 8, 15, 22
and 36 of cycle 1, and day 36 of cycle 2 for CNS 2 patients. CNS 3 patients receive
methotrexate intrathecal triple therapy (ITT) IT on days 1, 8, 15, 22 and 36 of cycle 1
and days 8 and 36 of cycle 2. There are 3 dose levels. If excessive toxicity is observed
at dose level 1, the dosing of inotuzumab ozogamicin will be decreased for dose level -1
and 6-mercaptopurine omitted. If excessive toxicity is observed at this dose, then for
dose level -2, the dosing of inotuzumab ozogamicin and cyclophosphamide will be
decreased. Treatment repeats every 42 days for up to 2 cycles in the absence of disease
progression or unacceptable toxicity. Patients undergo bone marrow aspiration or biopsy,
lumbar puncture, and blood sample collection throughout the trial. Patients also undergo
imaging on screening and on study.
After completion of study treatment, patients are followed up at 30 days, every 3 months
for 1 year, and then yearly for 4 years.
Gender
All
Age Group
1 Year to 21 Years
Accepting Healthy Volunteers
No
Inclusion Criteria:
- Patients must be >= 1 year and < 22 years of age at the time of enrollment
- Patients must have B-ALL, or previously diagnosed B lymphoblastic lymphoma (B-LL),
with >= 5% (M2 or M3) bone marrow blasts with or without extramedullary disease
- NOTE: Relapsed patients previously diagnosed with B-lymphoblastic lymphoma
(B-LL) are eligible if they have an M2 or M3 marrow at the time of enrollment
on this study
- Patients with ALL or B-LL who have M2 morphology must have local confirmatory
testing showing >= 5% blasts by flow cytometry, fluorescence in situ hybridization
(FISH) testing or other molecular method
- Leukemic blasts must demonstrate surface expression of CD22 at the time of relapse
by local/institutional flow cytometry of a bone marrow aspirate sample; (assessment
of CD22 using a bright fluorophore such as phycoerythrin [PE] is strongly
recommended)
- In the case of an inadequate aspirate sample (dry tap) or if bone marrow
aspirate is unable to be performed due to patient clinical status, flow
cytometry of peripheral blood specimen may be substituted if the patient has at
least 1,000/uL circulating blasts; alternatively, CD22 expression may be
documented by immunohistochemistry of a bone marrow biopsy specimen
- Patients with one of the following:
- Second or greater relapse;
- Primary refractory disease with at least 2 prior induction attempts;
- First relapse refractory to at least one prior re-induction attempt
- Any relapse after HSCT (Cohort 1 ONLY)
Patients with Down syndrome are eligible ONLY for Cohort 1 with:
- Any of above disease status, OR
- First relapse with no prior re-induction attempt NOTE: Patients with Down syndrome
or prior HSCT are NOT eligible for Cohort 2 combination therapy
- Patients with Philadelphia chromosome (Ph)+ ALL must have had two prior therapy
attempts including two different tyrosine kinase inhibitors (TKIs)
- Patients must have fully recovered from the acute toxic effects of all prior
anti-cancer therapy, defined as resolution of all such toxicities to =< grade 2
or lower per the inclusion/exclusion criteria prior to entering this study.
Apply to Cohort 2:
- Cytotoxic chemotherapy or other anti-cancer agents known to be myelosuppressive. For
agents not listed, the duration of this interval must be discussed with the study
chair and the study-assigned Research Coordinator prior to enrollment.
- A waiting period prior to enrollment is not required for patients receiving
standard cytotoxic maintenance chemotherapy (i.e., corticosteroid, vincristine,
6MP, and/or methotrexate).
- A waiting period is not required for patients receiving a single dose of
intrathecal methotrexate, hydrocortisone, and/or cytarabine within 7 days prior
to enrollment
- >= 14 days must have elapsed after the completion of other cytotoxic therapy,
with the exception of hydroxyurea, for patients not receiving standard
maintenance therapy. For patients who previously received calaspargase pegol,
>= 21 days must have elapsed after the last dose. Additionally, patients must
have fully recovered from all acute toxic effects of prior therapy.
- Note: Cytoreduction with hydroxyurea must be discontinued >= 24 hours
prior to the start of protocol therapy.
- Anti-cancer agents not known to be myelosuppressive (e.g., not associated with
reduced platelet or absolute neutrophil count [ANC] counts): >= 7 days after the
last dose of agent. For agents not listed, the duration of this interval must be
discussed with the study chair and the study-assigned research coordinator prior to
enrollment.
- Anti-cancer agents that are antibodies: >= 21 days must have elapsed from infusion
of last dose of antibody, and toxicity related to prior antibody therapy must be
recovered to grade =< 1. There is an exception for blinatumomab infusions, for which
patients must have been off for at least 3 days and all drug related toxicity must
have resolved to grade 2 or lower as outlined in the inclusion/exclusion criteria.
- Corticosteroids: If used to modify immune adverse events related to prior therapy,
>= 14 days must have elapsed since last dose of corticosteroid. A waiting period
prior to enrollment is not required for patients receiving corticosteroid for
leukemia therapy/cytoreduction.
- Radiotherapy: >= 2 weeks must have elapsed since local palliative radiation therapy
(XRT) (small port); >= 3 months must have elapsed if prior cranial or craniospinal
XRT was received, if >= 50% of the pelvis was irradiated, or if total body
irradiation (TBI) was received; >= 6 weeks must have elapsed if other substantial
bone marrow irradiation was given.
- Stem cell transplant or rescue without TBI: For Cohort 1, at least 90 days must have
elapsed since stem cell transplant and at least 30 days from donor lymphocyte
infusion. Patient must have had no more than one previous HSCT and currently have no
evidence of active graft vs. host disease (GVHD). For Cohort 2, no prior HSCT is
allowed.
- Chimeric antigen receptor (CAR) T cell therapy: At least 30 days must have elapsed
from the last CAR-T cell infusion
- Patients must have a performance status corresponding to Eastern Cooperative
Oncology Group (ECOG) scores of 0, 1, or 2; use Karnofsky for patients > 16
years of age and Lansky for patients =< 16 years of age; patients who are
unable to walk because of paralysis, but who are up in a wheelchair, will be
considered ambulatory for the purpose of assessing the performance score
- Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70
mL/min/1.73 m^2 or
- A serum creatinine based on age/gender as follows:
- 1 to < 2 years: maximum serum creatinine 0.6 mg/dL (both male and female)
- 2 to < 6 years: maximum serum creatinine 0.8 mg/dL (both male and female)
- 6 to < 10 years: maximum serum creatinine 1 mg/dL (both male and female)
- 10 to < 13 years: maximum serum creatinine 1.2 mg/dL (both male and female)
- 13 to < 16 years: maximum serum creatinine 1.5 mg/dL (male), 1.4 mg/dL (female)
- >= 16 years: maximum serum creatinine 1.7 mg/dL (male), 1.4 mg/dL (female)
- Direct bilirubin =< 1.5 x upper limit of normal (ULN) for age, and
- Serum glutamic pyruvic transaminase (SGPT) (alanine aminotransferase [ALT]) =<
5 x ULN for age; for the purpose of this study, the ULN for ALT will be 45 U/L
Exclusion Criteria:
- Patients with any prior history of SOS irrespective of severity
- Patients with isolated central nervous system (CNS), testicular, or any other
extramedullary site of relapse
- Patients who have been previously treated with inotuzumab ozogamicin
- Patients who have previously received HSCT (Cohort 2 only)
- Patients with Down syndrome (Cohort 2 only)
- History of allergic reaction attributed to compounds of similar or biologic
composition to inotuzumab ozogamicin or other agents in the study
- Note: Patients with history of allergy to pegaspargase/calaspargase pegol are
eligible for enrollment on Cohort 2 if Erwinia formulation of asparaginase can
be obtained
- Patients with active optic nerve and/or retinal involvement are not eligible;
patients who are presenting with visual disturbances should have an ophthalmologic
exam and, if indicated, a magnetic resonance imaging (MRI) to assess optic nerve or
retinal involvement
- Patients who are currently receiving another investigational drug
- Patients who are currently receiving or plan to receive other anti-cancer agents
(except hydroxyurea, which may be continued until 24 hours prior to start of
protocol therapy, and intrathecal chemotherapy)
- Anti-GVHD or agents to prevent organ rejection post-transplant; patients who are
receiving cyclosporine, tacrolimus, or other agents to prevent either
graft-versus-host disease post bone marrow transplant or organ rejection
post-transplant are not eligible for this trial; at least 3 half-lives must have
elapsed after the last dose of GVHD or anti-rejection medications
- Patients who are currently receiving or plan to receive corticosteroids except as
described below
- Systemic corticosteroids may be administered for cytoreduction up to 24 hours
prior to the start of protocol therapy, (Cohort 1 only) for all patients,
corticosteroids may be administered as a premedication for inotuzumab
ozogamicin and as treatment for allergic reactions or for physiologic
replacement/stress dosing of hydrocortisone for documented adrenal
insufficiency; corticosteroids are not allowed for other indications
- Patients with known human immunodeficiency virus (HIV), hepatitis B or C infections;
testing to prove negative status is not required for enrollment unless it is deemed
necessary for usual medical care of the patient
- Patients who have an active uncontrolled infection defined as:
- Positive bacterial blood culture within 48 hours of study enrollment;
- Fever above 38.2 degree Celsius (C) within 48 hours of study enrollment with
clinical signs of infection; fever that is determined to be due to tumor burden
is allowed if patients have documented negative blood cultures for at least 48
hours prior to enrollment and no concurrent signs or symptoms of active
infection or hemodynamic instability
- A positive fungal culture within 30 days of study enrollment or active therapy
for presumed invasive fungal infection
- Patients may be receiving IV or oral antibiotics to complete a course of
therapy for a prior documented infection as long as cultures have been negative
for at least 48 hours and signs or symptoms of active infection have resolved;
for patients with clostridium (C.) difficile diarrhea, at least 72 hours of
antibacterial therapy must have elapsed and stools must have normalized to
baseline
- Active viral or protozoal infection requiring IV treatment
- Patients known to have one of the following concomitant genetic syndromes: Bloom
syndrome, ataxia-telangiectasia, Fanconi anemia, Kostmann syndrome, Schwachman
(Schwachman-Diamond-Blackfan) syndrome or any other known bone marrow failure
syndrome
- There have been no human studies of inotuzumab ozogamicin in pregnant women and no
reports of exposure in utero; based on nonclinical safety studies, inotuzumab
ozogamicin has the potential to impair human male and female fertility and to
adversely affect human embryo fetal development; women of childbearing potential
should be advised to avoid becoming pregnant while receiving inotuzumab ozogamicin;
there is no information regarding the presence of inotuzumab ozogamicin in human
milk, the effects on the breast-fed infant, or the effects on milk production;
because of the potential for adverse reactions in breast-fed infants, women should
not breast-feed during treatment with inotuzumab ozogamicin and for at least 2
months after the final dose
- Female patients of childbearing potential are not eligible unless a negative
pregnancy test result has been obtained within 7 days prior to enrollment
- Female patients who are sexually active and of reproductive potential are not
eligible unless they agree to use an effective contraceptive method for the
duration of their study participation and for 8 months after the last dose of
inotuzumab ozogamicin
- Men with female partners of childbearing potential should use effective
contraception during treatment with inotuzumab ozogamicin and for at least 5
months after the last dose of inotuzumab ozogamicin
- Lactating females are not eligible unless they agree not to breastfeed their
infants