Phase 1
Completed N=48
S1312, Inotuzumab Ozogamicin and Combination Chemotherapy in Treating Patients With Relapsed or Refractory Acute Leukemia
Source: ClinicalTrials.gov NCT01925131 ↗Enrolled (actual)
48
Serious AEs
43.8%
Results posted
Apr 2022
Primary outcomePrimary: MTD of Inotuzumab Ozogamicin With CVP for Patients With Relapsed or Refractory CD22+ Acute Leukemia — 0.8; 0.5; 0.5 mg/m^2
Summary
This phase I trial studies the side effects and best dose of inotuzumab ozogamicin when given together with combination chemotherapy in treating patients with relapsed or refractory acute leukemia. Immunotoxins, such as inotuzumab ozogamicin, can find cancer cells that express cluster of differentiation (CD)22 and kill them without harming normal cells. Drugs used in chemotherapy, such as cyclophosphamide, vincristine sulfate, and prednisone, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving inotuzumab ozogamicin together with combination chemotherapy may kill more cancer cells.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY MTD of Inotuzumab Ozogamicin With CVP for Patients With Relapsed or Refractory CD22+ Acute Leukemia |
0.8; 0.5; 0.5 | — |
| SECONDARY Response Rate (CR+CRi) Among Expansion Cohort |
83.33 | — |
| SECONDARY Frequency and Severity of Toxicities |
2; 2; 7; 3; 5; 5 | — |
Eligibility Criteria
Inclusion Criteria
- Patients must have a diagnosis of relapsed or refractory CD22-positive acute leukemia including B-ALL, mixed phenotype leukemia (biphenotypic), or Burkitt's leukemia based on World Health Organization (WHO) classification; patients with bilineal leukemia are excluded
- Patients must have evidence of acute leukemia in their peripheral blood or bone marrow; patients must have >= 5% blasts in the peripheral blood or bone marrow within 14 days prior to registration; at least >= 20% of those blasts must be CD22-positive (surface) based on local immunophenotyping and histopathology
- Patients must be refractory or have relapsed following prior induction therapy; a standard induction regimen is defined as any program of treatment that includes vincristine and prednisone or dexamethasone, cytarabine/anthracycline, or high dose cytarabine
- For sites with the B1931022 pharmaceutical trial open, precursor B-cell ALL patients from that site may be eligible for S1312 providing they meet the following criteria:
- Patient is in second salvage or more; OR
- Patient was treated on the standard of care arm of B1931022 and failed therapy
- Patients may have received prior allogeneic transplant or autologous transplant; however, patients with prior allogeneic bone marrow transplant will be eligible only if both of the following conditions are met:
- The transplant must have been performed >= 90 days prior to registration
- The patient must not have >= grade 2 acute graft versus host disease (GvHD) or either moderate or severe limited chronic GvHD within 14 days prior to registration
- Patients known to have Philadelphia chromosome positive (Ph+) ALL must have either failed treatment or been intolerant to treatment with at least two second or third generation tyrosine kinase inhibitors
- Patients must not have received prior treatment with inotuzumab ozogamicin; previous treatment with other anti-CD22 antibodies must have been completed at least 90 days prior to registration
- Patients must have Zubrod performance status 0-2
- Patients must not have received any chemotherapy, investigational agents, or undergone major surgery within 14 days prior to registration with the following exceptions:
- Monoclonal antibodies must not have been received for 1 week prior to registration
- Chimeric antigen receptor (CAR) T-cells must not have been received for 28 days prior to registration.
- Steroids, hydroxyurea, vincristine, 6-mercaptopurine, methotrexate, thioguanine and intrathecal chemotherapy are permitted within any time frame prior to registration. FDA-approved TKIs may also be administered until 1 day prior to start of study therapy (C1, D1).
- All drug-related toxicities must have resolved to = 500 milliseconds (by Fridericia calculation) based on the average of triplicate electrocardiogram (EKG) performed within 7 days prior to registration; note that triplicate EKG is required at other timepoints
- Patients must not have a history of chronic liver disease (or cirrhosis)
- Patients who are known to be human immunodeficiency virus (HIV)+ are eligible providing they meet all of the following additional criteria within 28 days prior to registration:
- CD4+ cells >= 350/mm^3 (nadir)
- Viral load of < 50 copies HIV messenger ribonucleic acid (mRNA)/mm^3 if on combination antiretroviral therapy (cART) or < 25,000 copies HIV mRNA if not on cART
- No zidovudine or stavudine as part of cART Patients who are HIV+ and do not meet all of these criteria are not eligible for this study
- Patients with evidence of extramedullary disease at diagnosis will have computed tomography (CT) scan of the chest, abdomen and pelvis to obtain baseline values within 28 days prior to registration
- Patients must have complete history and physical examination within 28 days prior to registration
- Patients must not be pregnant or nursing; women/men of reproductive potential must have agreed to use an effective contraceptive method; a woman is consid
Data sourced from ClinicalTrials.gov (NCT01925131). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.