CD34+Selection for Partially Matched Family or Matched Unrelated Adult Donor Transplant

August 20, 2018 updated by: Mitchell Cairo, New York Medical College

CD34+Stem Cell Selection for Patients Receiving Partially Matched Family or Matched Unrelated Adult Donor Allogeneic Stem Cell Transplantations for Malignant and Non-Malignant Disease

CD34+ stem cell selection in children, adolescents and young adults receiving partially matched family donor or matched unrelated adult donor allogeneic bone marrow or peripheral blood stem cell transplant will be safe and well tolerated and be associated with a low incidence of serious (Grade III/IV) acute and chronic graft versus host disease (GVHD).

Study Overview

Detailed Description

The selection of CD34+ cells is associated with the simultaneous depletion of T cells that are responsible for severe acute and chronic graft versus host disease (GVHD). Successful engraftment is reported in adult patients with malignant and non-malignant disease who received CD34+ selected stem cells from HLA-matched or mismatched mobilized peripheral blood (PBSC) or bone marrow.

Study Design:

Selected patients defined in the eligibility criteria will enrolled on this study. Patients will receive one of either full intensity or reduced intensity regimen based on the patient's disease status, organ function and performance and determined by the PI and will have peripheral blood undergo CD34 selection.

Study Type

Interventional

Enrollment (Actual)

20

Phase

  • Phase 2

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

    • New York
      • Valhalla, New York, United States, 10595
        • New York Medical College

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

No older than 70 years (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adequate renal function defined as:Serum creatinine <1.5 x normal, or Creatinine clearance or radioisotope GFR >60 ml/min/m2 or an equivalent GFR as determined by the institutional normal range.
  • Adequate liver function defined as:Total bilirubin <1.5 x normal, or SGOT (AST) or SGPT (ALT) <3.0 x normal
  • Adequate cardiac function defined as:Shortening fraction >27% by echocardiogram, or Ejection fraction of >47% by radionucleotide angiogram or echocardiogram.
  • Adequate pulmonary function defined as:Uncorrected DLCO >50% by pulmonary function test. For children who are uncooperative, no evidence of dyspnea at rest, no exercise intolerance, and a pulse oximetry >94% on room air.

Eligibility for Reduced Intensity Regimen:

  • Adequate renal function defined as:Serum creatinine 2.0 x normal, or creatinine clearance or radioisotope GFR > 40 ml/min/m2 or an equivalent GFR as determined by the institutional normal range.
  • Adequate liver function defined as:Total bilirubin < 2.5 x normal; or SGOT (AST) or SGPT (ALT) < 5.0 x normal.
  • Adequate cardiac function defined as:Shortening fraction of >25% by echocardiogram, or Ejection fraction of >40% by radionuclide angiogram or echocardiogram.
  • Adequate pulmonary function defined as:DLCO >35% by pulmonary function test. For children who are uncooperative, no evidence of dyspnea at rest, no exercise intolerance, and a pulse oximetry >94% in room air.

Exclusion Criteria:

  • Pregnancy/Breast Feeding: Females who are pregnant or breast-feeding are not eligible.
  • Infection: Patients with documented uncontrolled infection at the time of study entry are not eligible.

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: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Thiotepa/Cyclophosphamide/ATG
Full intensity with TBI
Patients will start their pre-conditioning regimen on Day -8. Fractionated TBI will be administered twice daily for 3 days on Days -8, -7, and -6. Patients will receive Thiotepa on Days -5, -4, Cyclophosphamide on Days -3, -2 and rabbit antithymocyte globulin on Days -4, -3, -2 and -1. The stem cell infusion will be performed on Day 0. GM-CSF hematopoietic growth factor will start on Day 0. GVHD prophylaxis will consist of tacrolimus only.
Other Names:
  • Cytoxan
  • Atgam
  • ThioTepa
Experimental: Busulfan/Melphalan/ATG
Full intensity without TBI
Patients will start their pre-conditioning regimen on Day -9. Patients will receive busulfan twice daily on Days - 8, -7, -6, and -5 and Melphalan on Days -4, -3 and -2 and rabbit antithymocyte globulin on Days -4, -3, -2 and -1 with stem cell infusion on Day 0. GM-CSF hematopoietic growth factor will start on Day 0. GVHD prophylaxis will consist of tacrolimus only.
Other Names:
  • Alkeran
  • Myleran
  • Atgam
Experimental: Busulfan/Fludarabine/Alemtuzumab
Reduced Intensity Chemotherapy
Patients will start their GVHD prophylaxis with Tacrolimus on Day -9. Patients will receive busulfan twice daily on Days -8, -7, -6, and -5; fludarabine on Days -7, -6, -5, -4, -3 and -2 and alemtuzumab on Days -5, -4, -3, -2, and -1. The stem cell infusion will be performed on Day 0. GVHD prophylaxis will consist of tacrolimus only.
Other Names:
  • Fludara
  • Campath
  • Myleran
Experimental: Fludarabine/Cyclophosphamide/ATG
Reduced Intensity Chemotherapy for Fanconi Anemia
Patients will start their pre-conditioning regimen on Day -6. Patients will receive TBI as a single fraction on Day -6. Patients will receive fludarabine and cyclophosphamide on Days - 5, -4, -3, and -2 and antithymocyte globulin (horse) on Days -5, -4, -3, -2 and -1. The stem cell infusion will be performed on Day 0. GVHD prophylaxis will consist of tacrolimus only.
Other Names:
  • Fludara
  • Cytoxan
  • Atgam

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The safety CD34+ stem cell selection
Time Frame: 100 days
serious adverse events will be monitored post transplant to determine if there is an increase vs. historical data related to the CD34+ selection
100 days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Immune reconstitution (T, B, DC) following CD34+ selection
Time Frame: 3 years
immune subsets will be drawn post transplant to determine the rate of reconstitution post CD34+ transplant to determine if this process increases or decreases the reconstitution time.
3 years

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

September 1, 2011

Primary Completion (Actual)

November 1, 2017

Study Completion (Actual)

August 1, 2018

Study Registration Dates

First Submitted

May 5, 2008

First Submitted That Met QC Criteria

January 14, 2010

First Posted (Estimate)

January 15, 2010

Study Record Updates

Last Update Posted (Actual)

August 21, 2018

Last Update Submitted That Met QC Criteria

August 20, 2018

Last Verified

August 1, 2018

More Information

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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