Blinatumomab After TCR Alpha Beta/CD19 Depleted HCT
Alpha/Beta T-cell and B-cell Depleted Allogeneic Transplantation (IDE 13641) Followed by Blinatumomab Therapy for High-Risk B-Acute Lymphoblastic Leukemia: A Pilot Study
1 other identifier
interventional
25
1 country
1
Brief Summary
This trial will assess the feasibility of alpha/beta T-cell and B-cell depleted allogeneic hematopoietic cell transplantation (HCT) followed by blinatumomab therapy for high-risk B cell acute lymphoblastic leukemia (ALL) as a means of reducing rates of subsequent relapse and improving survival, while also minimizing treatment-related morbidity/ mortality and late effects. The conditioning regimens will be dependent on the patient's minimal residual disease (MRD) status prior to HCT using high throughput sequencing.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_2
Started Feb 2021
Longer than P75 for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 9, 2020
CompletedStudy Start
First participant enrolled
February 1, 2021
CompletedFirst Posted
Study publicly available on registry
February 9, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 28, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2029
ExpectedSeptember 17, 2021
September 1, 2021
3.1 years
September 9, 2020
September 12, 2021
Conditions
Outcome Measures
Primary Outcomes (1)
Percentage of patients who are able to receive the blinatumomab infusion [Feasibility]
Percentage of patients who are able to receive the blinatumomab infusion at day +100 post-HCT and complete a minimum of 14/28 planned days
Day +100 post-HCT
Secondary Outcomes (12)
Cumulative incidence of treatment-related adverse events [Tolerability]
Day of HCT to Day +180 post-HCT
Overall Survival
Day of HCT to 1 year post-HCT
Disease Free Survival
Day of HCT to 1 year post-HCT
Engraftment
Day +100 and +1 year post-HCT
Primary Graft Failure
Day +28 and + 1 year post-HCT
- +7 more secondary outcomes
Other Outcomes (3)
Analysis of immune cell phenotyping
Days +19, +91, +135 and +180 post-HCT
Functional assessment of lymphocyte subsets
Days +19, +91, +135 and +180 post-HCT
Serum cytokine analysis
Days +19, +91, +135 and +180 post-HCT
Study Arms (2)
Alpha/beta T-cell and B-cell Depleted, Myeloablative HCT
EXPERIMENTALPatients who are MRD Negative by Flow cytometry but are MRD Positive by High Throughput Sequencing, will receive a myeloablative conditioning regimen which includes total body irradiation (TBI) followed by an alpha/beta T-cell and B-cell depleted transplant. They will also receive a 28 day continuous infusion of blinatumomab starting on Day 100 post-transplant in the absence of significant ongoing GVHD.
Alpha/beta T-cell and B-cell Depleted, Reduced Intensity HCT
EXPERIMENTALPatients who are MRD Negative by Flow cytometry and are MRD Negative by High Throughput Sequencing, will receive a reduced intensity conditioning regimen followed by an alpha/beta T-cell and B-cell depleted transplant. They will also receive a 28 day continuous infusion of blinatumomab starting on Day 100 post-transplant in the absence of significant ongoing GVHD.
Interventions
Device: Alpha/Beta T-cell and B-cell depletion
28 day continuous infusion given on Day 100 post-HCT if no significant ongoing GVHD
Eligibility Criteria
You may qualify if:
- Diagnosis of B-ALL with no evidence of minimal residual disease in the bone marrow by multi-parameter flow cytometry (FC-MRD negative, \<0.01%) and meet at least one of the following:
- In remission after first relapse or greater (≥ CR2)
- Very-high risk biology ALL that is proceeding to HCT in first remission (e.g. Induction failure, Severe-hypodiploidy, Ph-like ALL)
- First remission with persistent disease identified as end of consolidation (EOC) MRD \> 0.01%.
- Patients must have an available unrelated or haploidentical donor
- Age ≤ 25 years at time of study enrollment
- Karnofsky Performance Status ≥ 60% for patients 16 years and older and Lansky Play Score ≥ 60 for patients under 16 years of age
- Have acceptable organ function as defined within 14 days of study registration: Renal: creatinine clearance or radioisotope GFR ≥ 60 mL/min/1.73m2 Hepatic: ALT \< 5 x upper limit of normal (ULN) and total bilirubin ≤ 3 mg/dL Cardiac: left ventricular ejection fraction ≥ 40% by ECHO/MUGA Pulmonary: No evidence of dyspnea at rest. No supplemental oxygen requirement. If measured, carbon monoxide diffusion capacity (DLCO) \> 50%. Central Nervous System: Based on clinical exam, no concern for/evidence of active CNS infection. Patients with fully treated prior CNS infections are eligible. Patients with seizure disorders may be enrolled if seizures are well-controlled on anticonvulsant therapy.
- Patients who have experienced their relapse after HCT are eligible, provided they have no evidence of acute or chronic Graft-versus-Host Disease (GVHD) and are off all transplant immune suppression therapy for at least 7-days (e.g. steroids, cyclosporine, tacrolimus). Steroid therapy for non-GVHD and/or non-leukemia therapy is acceptable.
- Immunotherapy: At least 42 days after the completion of any type of immunotherapy aside from blinatumomab (e.g. tumor vaccines or CAR T-cell therapy).
- XRT: Cranial or craniospinal XRT is prohibited during protocol therapy. ≥ 90 days must have elapsed if prior TBI, cranial or craniospinal XRT
- Sexually active females of child bearing potential must agree to use adequate contraception (diaphragm, birth control pills, injections, intrauterine device \[IUD\], surgical sterilization, subcutaneous implants, or abstinence, etc.) for the duration of treatment and for 2 months after the completion of blinatumomab therapy. Sexually active men must agree to use barrier contraceptive for the duration of treatment and for 2 months after the completion of blinatumomab therapy.
- Voluntary written consent before performance of any study-related procedure not part of normal medical care, with the understanding that consent may be withdrawn by the subject at any time without prejudice to future medical care.
- All patients enrolled in this study must have been enrolled in the Blinatumomab Bridging Therapy (BBT) Trial
You may not qualify if:
- Active extramedullary disease or presence of chloromatous disease.
- Receiving concomitant chemotherapy, radiation therapy; immunotherapy or other anti-cancer therapy for treatment of disease other than is specified in the protocol.
- Systemic fungal, bacterial, viral, or other infection not controlled (defined as exhibiting ongoing signs/symptoms related to the infection and without improvement, despite appropriate antibiotics or other treatment). Patients with possible fungal infections must have had at least 2 weeks of appropriate anti-fungal antibiotics and be asymptomatic.
- Pregnant or lactating. The agents used in this study are known to be teratogenic to a fetus and there is no information on the excretion of agents into breast milk. All females of childbearing potential must have a blood test or urine study within 7 days prior to registration to rule out pregnancy.
- Known allergy to any chemotherapies or targeted agents included in this protocol.
- Participating in a concomitant Phase 1 or 2 study involving treatment of disease.
- Active malignancy other than B-ALL.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Medical College of Wisconsinlead
- Amgencollaborator
- University of Wisconsin, Madisoncollaborator
Study Sites (1)
Children's Hospital of Wisconsin
Milwaukee, Wisconsin, 53226, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Rachel Phelan, MD, MPH
Medical College of Wisconsin
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor, Department of Pediatrics, Division of Hematology/Oncology/BMT
Study Record Dates
First Submitted
September 9, 2020
First Posted
February 9, 2021
Study Start
February 1, 2021
Primary Completion
February 28, 2024
Study Completion (Estimated)
December 31, 2029
Last Updated
September 17, 2021
Record last verified: 2021-09