Trial Evaluating MGTA-456 in Patients With High-Risk Malignancy

Acute Myeloid Leukemia Clinical Trial

Official title:

Single-Arm, Open Label, Interventional Phase II Clinical Trial Evaluating MGTA-456 in Patients With High-Risk Malignancy

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT03674411
• Other study ID #: 2018LS051
• Secondary ID: MT2018-06
• Status: Active, not recruiting
• Phase: Phase 2
• Start date: January 2, 2019
• Est. completion date: June 28, 2024

Study information

• Verified date: March 2024
• Source: Masonic Cancer Center, University of Minnesota
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This is an single arm, open label, interventional phase II trial evaluating the efficacy of umbilical cord blood (UCB) hematopoietic stem and progenitor cells (HSPC) expanded in culture with stimulatory cytokines (SCF, Flt-3L, IL-6 and thromopoietin) on lympho-hematopoietic recovery. Patients will receive a uniform myeloablative conditioning and post-transplant immunoprophylaxis.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 22
• Est. completion date: June 28, 2024
• Est. primary completion date: June 23, 2020
• Accepts healthy volunteers: No
• Gender: All
• Age group: N/A to 55 Years

Eligibility

Age, Unit Cell Dose and HLA Match Criteria

• Subjects must be =55 years of age
• Subjects must weigh >11 kg
• Subjects must have a partially HLA matched UCB unit with a pre-cryopreserved TNC dose >1.0 x 107 per kilogram recipient weight. HLA matching is initially based on a minimum of 5 of 8 HLA alleles at high resolution A, B, C, DRB1 typing; searches will be performed according to the current Magenta Cord Blood Search Algorithm.

Eligible Diseases:

• Acute myelogenous leukemia (AML) in morphological complete remission with:
• Minimal residual disease (MRD) by flow cytometry, or
• Intermediate to high risk leukemia in first (CR1) based on institutional criteria, eg. not favorable risk AML which is defined as having one of the

following:

• t(8,21) without cKIT mutation
• inv(16) or t(16;16) without cKIT mutation
• Normal karyotype with mutated NPM1 but FLT3-ITD wild type
• Normal karyotype with double mutated CEBPA
• Acute promyelocytic leukemia (APL) in first molecular remission at the end of consolidation
• Any second or subsequent CR, or
• Secondary AML with prior malignancy that has been in remission for at least 12 months.
• Acute lymphocytic leukemia (ALL) at the following stages:
• High risk first morphological, cytogenetic and molecular CR with:
• MRD by flow cytometry, or
• Diagnosis of Philadelphia chromosome (Ph)+ ALL, or
• MLL rearrangement at diagnosis with slow early response at Day 14, or
• Hypodiploidy (< 44 chromosomes or DNA index < 0.81) at diagnosis, or
• End of induction M3 bone marrow, or
• End of induction M2 with M2-3 at Day 42.
• High risk second CR based on institutional criteria (eg, for children, bone marrow relapse <36 months from induction or T-lineage bone marrow relapse or very early isolated central nervous system (CNS) relapse <6 months from diagnosis, or slow re-induction (stage M2-3 at day 28 after induction) regardless of length remission. All patients with MRD by flow cytometry.
• Any third or subsequent CR.
• Secondary ALL
• Biphenotypic/undifferentiated leukemia in morphological, cytogenetic and molecular CR .
• Chronic Myelogenous Leukemia (CML) in high risk first chronic phase (failure of two tyrosine kinase inhibitors (TKI) or TKI intolerance), accelerated phase or second chronic phase.
• Myelodysplasia (MDS) IPSS Int-2 or High risk (i.e. RAEB, RAEBt <5% blasts) or other high risk features, including multiple cytopenias, high risk cytogenetics or lack of response to standard therapy..
• Relapsed large-cell lymphoma, mantle-cell lymphoma and Hodgkin lymphoma that is chemotherapy sensitive and ineligible for an autologous transplant.
• Burkitt's lymphoma in CR2 or subsequent CR.
• Relapsed T-cell lymphoma that is chemotherapy sensitive in CR/PR that is ineligible for an autologous transplant. Organ Specific Inclusion Criteria
• Karnofsky score =70 (16 years and older), Lansky play score >50 (children 2-16 years, or 'adequate' score for children <2 years, as detailed in Appendix II.
• Adequate organ function defined as:
• Renal: Serum creatinine within normal range for age, or if serum creatinine outside normal range for age, then creatinine clearance >40 ml/min or GFR =70 mL/min/1.73 m2.normal for age
• Hepatic: Bilirubin <3x upper limit of normal (ULN) and AST, ALT and alkaline phosphatase <5x ULN.
• Pulmonary function: DLCO, FEV1, FEC (diffusion capacity) >5030% of predicted (corrected for hemoglobin); if unable to perform pulmonary function tests, then O2 saturation >95% on room air.
• Cardiac: No uncontrolled arrhythmia and left ventricular ejection fraction at rest must be >3545%.
• Available 'back-up' HSPC graft (e.g, second UCB unit, haploidentical related donor).
• Females of child bearing potential and sexually active males must agree to use adequate birth control during study treatment.
• Voluntary written consent signed (adult or parental) before performance of any study-related procedure not part of normal medical care. Exclusion Criteria
• Patients with a HLA matched sibling donor or a HLA matched unrelated donor who is available for marrow or peripheral blood stem cell collection at the desired time of transplant.
• Pregnant or breast feeding. The agents used in this study may be teratogenic to a fetus and there is no information on the excretion of agents into breast milk. Females of childbearing potential must have a blood test or urine study within 14 days prior to study enrollment to rule out pregnancy.
• Evidence of human immunodeficiency virus (HIV) infection or known HIV positive serology.
• Active bacterial, viral or fungal infection (currently taking medication and persistence of clinical signs and symptoms) with a minimum of 4 weeks of anti-fungal treatment
• Prior autologous or allogeneic transplant.
• Other active malignancy.
• Subjects >2 3 years of age unable to receive TBI 1320 cGy due to extensive prior therapy including >12 months alkylator therapy or >6 months alkylator therapy with extensive radiation, or prior Y-90 ibritumomab (Zevalin) or I-131 tostumomab (Bexxar), as part of their salvage therapy.

Related Conditions & MeSH terms

• Acute Lymphocytic Leukemia
• Acute Myeloid Leukemia
• Biphenotypic/Undifferentiated Leukemia
• Burkitt Lymphoma
• Chronic Myelogenous Leukemia
• Hodgkin Lymphoma
• Leukemia
• Leukemia, Myelogenous, Chronic, BCR-ABL Positive
• Leukemia, Myeloid
• Lymphoma
• Lymphoma, Mantle-Cell
• Lymphoplasmacytic Lymphoma
• Mantle Cell Lymphoma
• Myelodysplasia
• Precursor Cell Lymphoblastic Leukemia-Lymphoma
• Relapsed Large Cell Lymphoma
• Relapsed T-Cell Lymphoma
• Waldenstrom Macroglobulinemia

Intervention

Drug:
• Fludarabine (FLU)
25 mg/m2 IV over 1 hour (<10 kg: 0.83 mg/kg IV over 1 hour)
• Cyclophosphamide (CY)
60 mg/kg IV over 2 hours
• Total Body Irradiation (TBI)
165 cGy twice daily
• Tacrolimus (Tac)
Tacrolimus will start day -3 and will be administered as a continuous IV infusion at a starting dose of 0.03 mg/kg/day. Goal trough levels will be 10-15 ng/mL for the first 14 days post-transplant and then decreased to a goal of 5-10 ng/ml thereafter.
• Mycophenolate Mofetil (MMF)
MMF 3 gram/day IV/PO for adult patients divided in 2 or 3 doses. Pediatric patients will receive MMF at the dose of 15 mg/kg/dose (max 1 gram per dose) every 8 hours beginning day -3.
• Granulocyte Colony-Stimulating Factor (G-CSF)
5 ug/kg/d until the absolute neutrophil count (ANC) is >2500/uL for 2 consecutive days
• Busulfan (BU)
BU IV once daily with dose based on Pharmacokinetics (PK) calculator over 3 hours
• Melphalan
50 mg/m2/day (1.7 mg/kg/day if < 10 kg) IV over 30 min
• MGTA 456 Infusion
The target cell dose is >10 x 106 CD34/kg with a maximum TNC 2.7 x 108/kg for children (<18 years) and 8.1 × 108 cells/kg [expanded product only] for adults based on the highest cell dose windows evaluated in prior studies.

Locations

Country	Name	City	State
United States	Masonic Cancer Center at University of Minnesota	Minneapolis	Minnesota

Sponsors (1)

Lead Sponsor	Collaborator
Masonic Cancer Center, University of Minnesota

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Percentage of Participants With Neutrophil Recover	Percentage of participants with neutrophil recovery by day 14 after transplantation in recipients of MGTA-456.	Day 14
Secondary	Hospitalization Rates	Number of days alive without hospitalization between days 0 and 100 after transplantation	Day 0 and Day 100
Secondary	Secondary Graft Failure	Incidence of secondary graft failure	2 Years
Secondary	Platelet Recovery	Incidence of platelet recovery at day 42	Day 42
Secondary	Treatment Related Mortality (TRM)	Incidence of TRM at 6 months	6 Months
Secondary	Grades II-IV Acute GVHD	Incidence of grades II-IV acute GVHD at day 100	Day 100
Secondary	Grades III-IV Acute GVHD	Incidence of grades III-IV acute GVHD at day 100	Day 100
Secondary	Chronic GVHD	Incidence of chronic GVHD at 1 year	1 Year
Secondary	Relapse	Incidence of relapse at 2 years	2 Years
Secondary	Non-catheter Associated Bacterial Infections	Incidence of non-catheter associated bacterial infections by day 100	Day 100
Secondary	Overall Survival (OS)	Incidence of overall survival (OS) at 2 years	2 Years
Secondary	Event-Free Survival (EFS)	Incidence of event-free survival (EFS) at 2 years	2 Years