Infusion of Expanded Cord Blood Cells in Addition to Single Cord Blood Transplant in Treating Patients With Acute Leukemia, Chronic Myeloid Leukemia, or Myelodysplastic Syndromes

Pilot Study: Infusion of Off-the-Shelf Ex Vivo Expanded Cryopreserved Progenitor Cells (Dilanubicel) in the Setting of Single Cord Blood Transplantation for Patients With Hematologic Malignancies

This phase II trial studies how well donor umbilical cord blood transplant with ex-vivo expanded cord blood progenitor cells (dilanubicel) works in treating patients with blood cancer. Before the transplant, patients will receive chemotherapy (fludarabine, cyclophosphamide and in some cases thiotepa) and radiation therapy. Giving chemotherapy and total-body irradiation before a donor umbilical cord blood transplant helps stop the growth of cells in the bone marrow, including normal blood-forming cells (stem cells) and cancer cells. It may also stop the patient's immune system from rejecting the donor's stem cells. When the healthy stem cells from a donor are infused into the patient they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. The donated stem cells may also replace the patient's immune cells and help destroy any remaining cancer cells.

Study Overview

• Status: Active, not recruiting
• Conditions: Hematopoietic and Lymphoid Cell Neoplasm; Acute Lymphoblastic Leukemia; Myelodysplastic Syndrome; Myelodysplastic Syndrome With Excess Blasts; Chronic Myelogenous Leukemia, BCR-ABL1 Positive; Acute Biphenotypic Leukemia
• Intervention / Treatment: Other: Laboratory Biomarker Analysis; Procedure: Computed Tomography; Procedure: Biospecimen Collection; Drug: Cyclophosphamide; Drug: Fludarabine; Radiation: Total-Body Irradiation; Procedure: Multigated Acquisition Scan; Drug: Thiotepa; Biological: Dilanubicel; Procedure: Umbilical Cord Blood Transplantation; Procedure: Electrocardiography; Procedure: Bone Marrow Biopsy; Procedure: Bone Marrow Aspirate

Detailed Description

OUTLINE:

Patients receive either regimen A or regimen B.

REGIMEN A: Patients (10 through 45 years old) receive fludarabine intravenously (IV) over 30 minutes on days -8 to -6 and cyclophosphamide IV on days -7 and -6. Patients undergo total body irradiation (TBI) twice daily (BID) on days -4 to -1. Patients receive unmanipulated cord blood unit IV followed by dilanubicel IV within the next 24 hours on day 0.

REGIMEN B: Patients (10 through 65 years old) receive fludarabine IV over 30-60 minutes on days -6 to -3 and IV over 30 minutes on day -2, cyclophosphamide IV on day -6, and thiotepa IV over 2-4 hours on days -5 and -4. Patients undergo TBI once daily (QD) on days -2 and -1. Patients receive unmanipulated cord blood unit IV followed by dilanubicel IV within the next 24 hours on day 0.

All patients undergo bone marrow aspirate and biopsy as clinically indicated during screening and on study. Patients undergo multigated acquisition scan (MUGA) or echocardiography (ECHO), and computed tomography (CT) during screening. Patients also undergo blood sample collection on study.

After completion of study treatment, patients are followed up at 180 days, 1 year, and 2 years.

• Study Type: Interventional
• Enrollment (Actual): 31
• Phase: Phase 2

Contacts and Locations

Study Locations

• United States
  • Washington
    • Seattle, Washington, United States, 98109
      • Fred Hutch/University of Washington Cancer Consortium

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 65 years (Child, Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Patients 10 to 65 years old with a hematologic malignancy in need of hematopoietic cell transplant who are > 30 kg and without a suitable related donor
• Patient must have hematologic malignancy that meets institutional eligibility requirements for cord blood transplant

• Malignancies included are:

  • Acute leukemia, including acute myeloid leukemia (AML), biphenotypic acute leukemia or mixed-lineage leukemia, acute lymphoblastic leukemia (ALL); all patients must be in complete response (CR) as defined by < 5% blasts by morphology/flow cytometry in a representative bone marrow sample with adequate cellularity to assess remission status
  • Myelodysplasia (MDS) International Prognostic Scoring System (IPSS) intermediate (Int)-2 or high risk (i.e., refractory anemia with excess blasts [RAEB], refractory anemia with excess blasts in transformation [RAEBt]) or refractory anemia with severe pancytopenia or high risk cytogenetics; blasts must be < 10% in a representative bone marrow aspirate
  • Chronic myeloid leukemia excluding refractory blast crisis; to be eligible in first chronic phase (CP1) patient must have failed or be intolerant to tyrosine kinase inhibitor therapy
• High dose TBI regimen: 10 to =< 45 years
• Intermediate intensity regimen: 10 to =< 65 years
• Patients 10 to =< 45 years: Lansky (< 16 years old) or Karnofsky (>= 16 years old) >= 70 or Eastern Cooperative Oncology Group (ECOG) 0-1
• Patients > 45 to =< 65 years: Karnofsky >= 70 or ECOG 0-1 and non-age adjusted comorbidity index =< 5
• Adults: Calculated creatinine clearance must be > 60 mL and serum creatinine =< 2 mg/dL
• Children (< 18 years old): Calculated creatinine clearance must be > 60 mL/min
• Total serum bilirubin must be < 3 mg/dL unless the elevation is thought to be due to Gilbert's disease or hemolysis
• Transaminases must be < 3 x the upper limit of normal per reference values of treating institution
• Carbon monoxide diffusing capability (DLCO) corrected >= 60% normal (may not be on supplemental oxygen)
• For pediatric patients unable to perform pulmonary function tests, O2 saturation > 92% on room air
• Left ventricular ejection fraction >= 50% OR
• Shortening fraction > 26%
• Ability of participant or legally authorized representative to understand and the willingness to sign a written informed consent form
• DONOR: Minimum requirement: The cord blood (CB) unit must be matched at a minimum at 4/6 HLA-A, B antigens and DRB1 allele with the recipient; therefore, 0-2 mismatches at the A or B or DRB1 loci based on intermediate resolution at HLA-A, B and high resolution allele level typing at HLA- DRB1 are allowed
• DONOR: Institutional guidelines for HLA-match may be followed as long as the minimum criteria for HLA-matching as above are met
• DONOR: The CB unit selected for transplant must have a MINIMUM of 2.5 x 10^7 TNC/kg
• DONOR: The minimum recommended CD34/kg cell dose is 1.7 x 10^5 CD34/kg

• DONOR: A backup unit must be identified and reserved prior to the start of the treatment plan for possible infusion in the unlikely event of poor post-thaw viability of the primary CB unit. A suitable back up unit will be considered, as follows:

  • Must be matched at a minimum at 4/6 HLA-A, B, DRBl loci with the recipient. Therefore 0-2 mismatches at the A or B or DRBl loci based on intermediate resolution A, B antigen and DRBl allele typing for determination of HLA-match is allowed (Fred Hutch Protocol 2010).
  • Must contain a MINIMUM of 1.5 x 10^7 TNC/kg to ensure the same requirement we use for a standard double CBT per CB selection guideline (Fred Hutch Protocol 2010).

Exclusion Criteria:

• Uncontrolled viral or bacterial infection at the time of study enrollment
• Active or recent (prior 6 month) invasive fungal infection unless cleared by infectious disease (ID) consult
• History of human immunodeficiency virus (HIV) infection
• Pregnant or breastfeeding
• Prior allogeneic transplant
• Central nervous system (CNS) leukemic involvement not clearing with intrathecal chemotherapy; diagnostic lumbar puncture is to be performed
• < 30 kg

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: Treatment (chemotherapy, TBI, NLA101); Patients receive either regimen A or regimen B. REGIMEN A: Patients (10 through 45 years old) receive fludarabine IV over 30 minutes on days -8 to -6 and cyclophosphamide IV on days -7 and -6. Patients undergo TBI BID on days -4 to -1. Patients receive unmanipulated cord blood unit IV followed by dilanubicel IV within the next 24 hours on day 0. REGIMEN B: Patients (10 through 65 years old) receive fludarabine IV over 30-60 minutes on days -6 to -3 and IV over 30 minutes on day -2, cyclophosphamide IV on day -6, and thiotepa IV over 2-4 hours on days -5 and -4. Patients undergo TBI QD on days -2 and -1. Patients receive unmanipulated cord blood unit IV followed by dilanubicel IV within the next 24 hours on day 0. All patients undergo bone marrow aspirate and biopsy as clinically indicated during screening and on study. Patients undergo MUGA or ECHO, and CT during screening. Patients also undergo blood sample collection on study.

Other: Laboratory Biomarker Analysis; Correlative studies; Procedure: Computed Tomography; Undergo CT; Other Names: CAT Scan; Procedure: Biospecimen Collection; Undergo blood sample collection; Other Names: Biological Sample Collection; Drug: Cyclophosphamide; Given IV; Other Names: Carloxan; Cicloxal; Mitoxan; Neosar; Revimmune; Drug: Fludarabine; Given IV; Other Names: Fluradosa; fluoroadenine; Radiation: Total-Body Irradiation; Undergo TBI; Other Names: Total Body Irradiation; SCT_TBI; Whole Body Irradiation; Whole-Body Irradiation; Procedure: Multigated Acquisition Scan; Undergo MUGA; Other Names: Blood Pool Scan; Equilibrium Radionuclide Angiography; Gated Blood Pool Imaging; MUGA Scan; Multi-Gated Acquisition Scan; Radionuclide ventriculography; Drug: Thiotepa; Given IV; Other Names: Tepadina; Oncotiotepa; STEPA; TESPA; Tespamine; Thiofosfamide; Thiofozil; Thiophosphoramide; Thiotef; Triethylene Thiophosphoramide; Biological: Dilanubicel; Given IV; Other Names: NLA101; Allogeneic UCB-derived Hematopoietic Stem and Progenitor Cells NLA101; Allogeneic Umbilical Cord Blood-derived HSPCs NLA101; Procedure: Umbilical Cord Blood Transplantation; Given IV; Other Names: Cord Blood Transplantation; UCB transplantation; Procedure: Electrocardiography; Undergo ECHO; Other Names: ECG; EKG; Procedure: Bone Marrow Biopsy; Undergo bone marrow aspirate and biopsy; Procedure: Bone Marrow Aspirate; Undergo bone marrow aspirate and biopsy; Other Names: Human Bone Marrow Aspirate

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Incidence of graft failure	Primary graft failure/rejection as defined by no neutrophil recovery (regardless of donor chimerism) or autologous recovery (neutrophil recovery but < 10% donor chimerism in blood and bone marrow [BM]).	Up to day 45 post-transplant

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Incidence and severity of acute graft versus host disease (GVHD)	Assessed using the Acute GVHD Grading Scale (reference: Przepiorka D, Weisdorf D, Martin P, et al. 1994 Consensus Conference on Acute GVHD Grading. Bone Marrow Transplant 1995; 15: 825-8).	At day 100 post-transplant
Incidence and severity of chronic graft versus host disease (GVHD)	Assessed using the Chronic GVHD Grading Scale (reference: Filipovich AH, Weisdorf D, Pavletic S, et al. National Institutes of Health consensus development project on criteria for clinical trials in chronic graft-versus-host disease. I. Diagnosis and Staging Working Group report. Blood Marrow Transplant 2005; 11: 945-56).	Up to approximately 2 years post-transplant
Time to neutrophil engraftment	The day of neutrophil recovery will be the 1st day of 2 consecutive days of absolute neutrophil count at or above 500 after the 1st post-cord blood transplant nadir.	Up to day 45 post-transplant
Time to platelet engraftment	Measured by the number of participants with a platelet count > 20,000/ul without subsequent transfusions for 7 days	Up to day 100 post-transplant
Incidence of non-relapse mortality		At day 100 post-transplant
Incidence of non-relapse mortality		At 1 year post-transplant
Incidence of adverse events	Toxicities will be graded using the National Cancer Institute Common Terminology Criteria for Adverse Events Version 5.0.	Up to day 100 post-transplant
Incidence and severity of chronic graft versus host disease (GVHD)	Assessed using the Chronic GVHD Grading Scale (reference: Filipovich AH, Weisdorf D, Pavletic S, et al. National Institutes of Health consensus development project on criteria for clinical trials in chronic graft-versus-host disease. I. Diagnosis and Staging Working Group report. Blood Marrow Transplant 2005; 11: 945-56).	1 year post-transplant

Collaborators and Investigators

• Sponsor: Fred Hutchinson Cancer Center
• Collaborators: National Cancer Institute (NCI); National Heart, Lung, and Blood Institute (NHLBI); Nohla Therapeutics, Inc.
• Investigators: Principal Investigator: Filippo Milano, Fred Hutch/University of Washington Cancer Consortium

Study record dates

Study Major Dates

• Study Start (Actual): May 10, 2022
• Primary Completion (Actual): June 9, 2025
• Study Completion (Estimated): April 2, 2027

Study Registration Dates

• First Submitted: December 15, 2017
• First Submitted That Met QC Criteria: January 8, 2018
• First Posted (Actual): January 16, 2018

Study Record Updates

• Last Update Posted (Estimated): August 26, 2025
• Last Update Submitted That Met QC Criteria: August 25, 2025
• Last Verified: August 1, 2025

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Pathologic Processes; Neoplasms by Site; Neoplasms; Chronic Disease; Disease Attributes; Immune System Diseases; Neoplasms by Histologic Type; Hematologic Diseases; Lymphatic Diseases; Lymphoproliferative Disorders; Immunoproliferative Disorders; Leukemia, Myeloid; Bone Marrow Diseases; Anemia; Leukemia, Lymphoid; Leukemia; Anemia, Refractory; Myeloproliferative Disorders; Pathological Conditions, Signs and Symptoms; Hemic and Lymphatic Diseases; Hematologic Neoplasms; Precursor Cell Lymphoblastic Leukemia-Lymphoma; Myelodysplastic Syndromes; Anemia, Refractory, with Excess of Blasts; Leukemia, Myelogenous, Chronic, BCR-ABL Positive; Leukemia, Biphenotypic, Acute; Organic Chemicals; Heterocyclic Compounds, 1-Ring; Heterocyclic Compounds; Investigative Techniques; Therapeutics; Surgical Procedures, Operative; Hydrocarbons; Transplantation; Phosphoramide Mustards; Nitrogen Mustard Compounds; Mustard Compounds; Hydrocarbons, Halogenated; Phosphoramides; Organophosphorus Compounds; Radiotherapy; Cell Transplantation; Cell- and Tissue-Based Therapy; Biological Therapy; Triethylenephosphoramide; Aziridines; Azirines; Stem Cell Transplantation; Cyclophosphamide; Thiotepa; fludarabine; Whole-Body Irradiation; Cord Blood Stem Cell Transplantation
• Other Study ID Numbers: 9910 (Other Identifier: CTEP); P30CA015704 (U.S. NIH Grant/Contract); P50HL110787 (U.S. NIH Grant/Contract); NCI-2017-02205 (Registry Identifier: CTRP (Clinical Trial Reporting Program)); RG9218003 (Other Identifier: Fred Hutch/University of Washington Cancer Consortium)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No