T-Regulatory Cell and CD3 Depleted Double Umbilical Cord Blood Transplantation in Hematologic Malignancies

Optimization of the T Regulatory Cell and T Effector Cell Doses in Recipients of Double UCB Transplantation for Treatment of Hematological Malignancies

This is a unique dose-escalation trial that will titrate doses of umbilical cord blood (UCB) Treg and CD3+ Teff cells with the goal of infusing as many CD3+ Teff cells as possible without conferring grade II-IV acute graft-versus-host disease (GVHD).

In this study, the investigators propose to add UCB Treg and UCB CD3+ Teff cells to the two TCD UCB donor units with the goal of transplanting as many CD3+ Teff cells as possible without reintroducing risk of acute GVHD. The investigators hypothesize that Treg will permit the reintroduction of CD3+ Teff cells that will provide a bridge while awaiting HSC T cell recovery long term. The co-infusion of Treg will prevent GVHD without the need for prolonged pharmacologic immunosuppression.

Study Overview

Detailed Description

Based on prior studies, the first patient will start at lowest dose combination (3 x 10^6/kg of Treg and 3 x 10^6/kg of CD3+ Teff cells).

One patient will be entered at each level with a minimum of 35 days to observe the patient prior to moving to the next dose level. (1) If GVHD does not occur, a "successful step", then the CD3+ Teff cell dose will increase to the next higher level for the next patient; (2) If GVHD occurs, a "failed step", then Treg dose will increase to the next higher level for the next patient. It would take a minimum of 5 (if no GVHD) and maximum of 9 patients (if GVHD is observed at each level) to complete all Treg:CD3+ Teff cell combinations.

An additional 10 patients will be enrolled to verify that this reflects the optimal combination and evaluate its safety profile.

Study Type

Interventional

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Minnesota
      • Minneapolis, Minnesota, United States, 55445
        • Masonic Cancer Center, University of Minnesota

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Only patients requiring a double umbilical cord blood (UCB) transplant are to be considered for this study.

UCB Requirements

  • Three UCB units are required - one for Treg production and two for UCB transplant. The unrelated UCB donors must be 4-6/6 HLA-A, B, DRB1 matched with the recipient (HLA matching using molecular techniques: A and B to antigen level resolution and DR to allele level resolution). Suitable UCB units will be selected according to the University Of Minnesota UCB Graft Selection Algorithm.
  • Suitable UCB units must be ABO matched.

Disease Criteria:

  • Patients aged 18 to 55 years
  • Acute Myeloid Leukemia: with morphologically persistent disease in a representative bone marrow aspirate sample with ≤ 10% blasts after at least 1 cycles of chemotherapy (if patient refuses or is disqualified from alternative protocols), or in 3rd or higher complete remission (CR).
  • Acute Lymphocytic Leukemia: with morphologically persistent disease in a representative bone marrow aspirate sample with ≤ 10% blasts after at least 1 cycles of chemotherapy, or in 3rd or higher CR
  • Chronic Myelogenous Leukemia in Blast Crisis: with ≤10% residual blasts in the bone marrow aspirate after at least 1 cycle of induction chemotherapy in combination with a tyrosine kinase inhibitor (TKI)
  • Refractory Anemia with Excess Blasts: (≤ 10%) in representative bone marrow aspirate sample of blasts after 1 cycle of induction chemotherapy. If treated with hypomethylating agents, patients are eligible if blast count is ≤ 10% after 4 cycles or evidence of stable or progressive disease after at least 2 cycles.
  • Chronic Myeloproliferative Disease
  • Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma, Marginal Zone B-Cell Lymphoma or Follicular Lymphoma: disease must be refractory after at least two chemotherapy regimens or is chemotherapy sensitive but has residual nodal disease of ≥ 5 cm
  • Lymphoplasmacytic Lymphoma, Mantle-Cell Lymphoma, Prolymphocytic Leukemia: disease must be refractory after at least two chemotherapy regimens or is chemotherapy sensitive but has residual nodal disease of ≥ 5 cm
  • Large Cell Non-Hodgkin's Lymphoma: disease must be refractory after at least two chemotherapy regimens or is chemotherapy sensitive but has residual nodal disease of ≥ 5 cm
  • Lymphoblastic Lymphoma, Burkitt's Lymphoma, and other High-Grade NHL: disease must be refractory after at least two chemotherapy regimens or is chemotherapy sensitive but has residual nodal disease of ≥ 5 cm
  • Performance Status, Age, and Organ Function
  • Adequate performance status defined as a Karnofsky score ≥ 80%
  • Adequate organ function defined as:

    • Renal: creatinine < 2.0 mg/dL,
    • Hepatic: bilirubin, AST/ALT, ALP < 5 x upper limit of normal,
    • Pulmonary function: DLCOcorr > 50% normal,
    • Cardiac: left ventricular ejection fraction > 45%
  • Voluntary written informed consent signed before performance of any study-related procedure not part of normal medical care

Exclusion Criteria:

  • Available medically suitable HLA-identical related donor
  • Active infection at time of transplantation (including active infection with Aspergillus or other mold within 30 days)
  • History of HIV infection
  • 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 registration to rule out pregnancy
  • Prior myeloablative transplant within the last 6 months
  • Extensive prior therapy including > 12 months alkylator therapy or > 6 months alkylator therapy with extensive radiation
  • Patients who have received Y-90 ibritumomab (Zevalin) or I-131 tositumomab (Bexxar) as part of their salvage therapy (not eligible for myeloablative umbilical cord blood transplant)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Treg Plus CD3+Teff Treatment
Includes dose adjustment of T regulatory (Treg) and CD3+ T effector (CD3+ Teff) cells in recipients of double UCB transplantation
Given by infusion on Day 0 after transplantation - Five doses of Treg (3 x 10^6/kg, 10 x 10^6/kg, 30 x 10^6/kg, 100 x 10^6/kg and 300 x 10^6/kg)
Given by infusion on Day 0 after transplantation - 5 doses of CD3+ Teff cells (3 x 10^6 cells/kg, 6 x 10^6 cells/kg, 9 x 10^6 cells/kg, 12 x 10^6 cells/kg, and 15 x 10^6 cells/kg with the latter dose representing the median number of CD3+ cells in two UCB unit grafts
Given intravenously on Days -8 through -6, 25 mg/m^2 over 1 hour
Other Names:
  • Fludara
Given intravenously on Day -7 and -6, 60 mg/kg
Other Names:
  • Cytoxan
Given on Days -4 through -2, 165 cGY twice a day.
Infusion given on day 0
Other Names:
  • UCBT

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Optimal Cell Dose Mixture
Time Frame: Day 0
Determine the optimal cell dose mixture of UCB T regulatory and CD3+ T effector cells without the development of grade II-IV acute GVHD
Day 0

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Determine incidence of infusional toxicity
Time Frame: 48 hours
reaction that occurs with 48 hours of product infusion
48 hours
Incidence of neutrophil recovery
Time Frame: Day 42
Determine the incidence of neutrophil recovery (absolute neutrophil count ≥ 500/uL) at day 42
Day 42
Incidence of double and single chimerism
Time Frame: Day +21, Day +180, 1 Year
Determine incidence of double and single unit chimerism at various time points
Day +21, Day +180, 1 Year
Incidence of Viral and Fungal Infections
Time Frame: 1 Year
Determine incidence of viral and fungal infections at 1 year
1 Year
1 Year Survival
Time Frame: 1 Year
Estimate the probability of survival at 1 year
1 Year
Incidence of Grade III-IV Acute Graft-Versus-Host Disease
Time Frame: Day 100
Determine the incidence of grade III-IV acute GVHD at day 100
Day 100
Incidence of Treatment Related Death
Time Frame: 6 Months
Determine the incidence of treatment related mortality (TRM) at 6 months
6 Months
Incidence of Platelet Recovery
Time Frame: 1 Year
Determine the incidence of platelet recovery (platelet count ≥ 50,000/uL) at 1 year
1 Year
Incidence of Chronic Graft-Versus-Host Disease
Time Frame: 1 Year
Determine the incidence of chronic GVHD at 1 year
1 Year
Incidence of Relapse
Time Frame: 1 Year
Determine the incidence of relapse at 1 year
1 Year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2014

Primary Completion (Anticipated)

January 1, 2015

Study Completion (Anticipated)

January 1, 2015

Study Registration Dates

First Submitted

May 26, 2010

First Submitted That Met QC Criteria

July 14, 2010

First Posted (Estimate)

July 15, 2010

Study Record Updates

Last Update Posted (Actual)

December 2, 2017

Last Update Submitted That Met QC Criteria

November 29, 2017

Last Verified

November 1, 2017

More Information

Terms related to this study

Other Study ID Numbers

  • 2009LS018
  • MT2009-03 (Other Identifier: Blood and Marrow Transplantation Program)
  • 0910M73595 (Other Identifier: IRB, University of Minnesota)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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