Total Body Irradiation +/- Total Lymphoid Irradiation & Anti-Thymocyte Globulin in Non-myeloablative Hematopoietic Cell Transplantation

November 20, 2023 updated by: Robert Lowsky, Stanford University

Very Low-dose Total Body Irradiation in Combination With Total Lymphoid Irradiation and Anti-Thymocyte Globulin to Improve Donor Engraftment in Patients Undergoing Non-Myeloablative Hematopoietic Cell Transplantation

The purpose of this study is to evaluate whether addition of a low dose of total body irradiation (TBI) to a standard preparation for transplant [total lymphoid irradiation (TLI) and anti-thymocyte globulin (ATG)] conditioning will help to augment donor chimerism without reducing tolerability of this regimen or increasing the risk of graft-vs-host disease (GVHD)

Study Overview

Detailed Description

Primary Objective:

• Determine the proportion of patients with full donor T-cell chimerism at Day 28 following hematopoietic cell transplantation.

Secondary Objectives:

  • Determine the risk of disease progression, overall and event free survival, and non-relapse mortality, following treatment with TLI; ATG; and TBI.
  • Determine the incidence of acute and chronic GVHD following treatment with TLI; ATG; and TBI.

Exploratory Objectives:

• Determine the changes in frequency of hematopoietic stem, progenitor, and mature cell subsets and the changes in cytokine milieu and cellular architecture in the bone marrow of patients receiving TLI compared to TLI+TBI.

Study Type

Interventional

Enrollment (Actual)

22

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

    • California
      • Stanford, California, United States, 94305
        • Stanford University School of Medicine

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

INCLUSION CRITERIA

  • Has a human leukocyte antigen (HLA)-matched or single allele mismatched adult sibling donor or unrelated donor.
  • Acute myeloid leukemia (AML); myelodysplastic syndrome (MDS); myeloproliferative disease syndrome (MPD)]; chronic lymphocytic leukemia (CLL); B- or T-cell non Hodgkin lymphoma (NHL); Hodgkin lymphoma (HL); or chronic myelomonocytic leukemia (CMML), suitable for treatment with allogeneic transplant after TLI and ATG reduced intensity conditioning.
  • Considered at high-risk for regimen-related toxicity from fully-ablative transplant conditioning (therefore reduced-intensity conditioning is recommended).
  • Ability to understand and the willingness to sign a written informed consent document. Patients must have signed informed consent to participate in the trial.

EXCLUSION CRITERIA

  • Uncontrolled bacterial, viral or fungal infection defined as currently taking medication and progression of clinical symptoms.
  • Progressive hemato lymphoid malignancy despite conventional therapy.
  • Chronic myelogenous leukemia (CML).
  • Active CNS involvement of the underlying malignancy.
  • HIV positive
  • Pregnant or lactating
  • Prior malignancy (EXCEPTION: diagnosed > 5 years ago without evidence of disease, OR treated ≤ 5 years ago but have a greater than 50% chance of life expectancy of ≥ 5 years for that malignancy).
  • Have a psychiatric disorder(s) or psychosocial circumstance(s) which in the opinion of the primary physician would place the patient at an unacceptable risk from transplant.
  • Left ventricular ejection fraction (LEVF) < 30%, or uncontrolled cardiac failure
  • Diffusing capacity of lung for carbon monoxide (DLCO) < 40% predicted
  • Total bilirubin > 3 mg/dL
  • Serum glutamic oxaloacetic transaminase (SGOT) or serum glutamic-pyruvic transaminase (SGPT) > 4 x upper limit of normal (ULN)
  • Creatinine > 2 mg/dL and an estimated creatinine clearance < 40 mL/min
  • Poorly-controlled hypertension despite multiple antihypertensive medications
  • Karnofsky Performance Status (KPS) < 60%

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

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: TBI+TLI
TBI, single exposure on Day -1, 80 centigray (cGy) in addition to total lymphoid irradiation (TLI, 120 cGy/day for 9 days, weekends excluded) and anti-thymocyte globulin (ATG) 1.5 mg/kg (conditioning regimen)
Administer Total body irradiation (TBI) 80 cGy on Day 1 of standard TLI ATG conditioning
Given intravenous (IV), Dose 1.5 mg/kg x 5 days
Oral, Dose 0.05 mg/kg twice daily, can be given intravenous (IV)
Other Names:
  • Fujimycin
Given Oral, 15 mg/k every 2 hours for peripheral blood stem cells (PBSC) from matched related donors; 15 mg/kg every 8 hours for PBSC from unrelated donors (URDs) or mismatched related donors.
Other Names:
  • Cellcept
  • MMF
9 x 120 cGy over 11 days

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Full-dose Donor Chimerism (FDC) at Day 28 Following TLI/ATG/TBI Conditioning.
Time Frame: Day 28
Subsequent to TLI/ATG/TBI conditioning, the proportion of participants with full dose donor chimerism (FDC) will be determined by Day 28. FDC is defined as achieving ≥ 95% donor type in the CD3+ lineage within 28 days of donor cell infusion, as assessed by short tandem repeat (STR) testing. The outcome will be expressed as the number of participants that achieve FDC by Day 28, a number without dispersion.
Day 28

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Disease Progression
Time Frame: 1 year
Transplant recipients will be assessed for disease progression at 1 year after hematopoietic cell transplantation (HCT). The outcome is reported as the number of transplant recipients who experienced disease progression.
1 year
Overall Survival (OS)
Time Frame: 1 year
Overall survival (OS) is defined as the number of transplant recipients remaining alive at 12 months after transplant. The outcome is expressed as the number of transplant recipients who remained alive at 12 months after treatment, a number without dispersion.
1 year
Event-free Survival (EFS) at 1 Year
Time Frame: 1 year
Event-free survival (EFS) is defined as the number of transplant recipients remaining alive at 12 months after transplant and who did not experience disease relapse defined as blasts < 5%. The outcome is expressed as the number of transplant recipients remaining alive at 12 months after transplant without disease relapse, a number without dispersion.
1 year
Non-relapse Mortality (NRM)
Time Frame: 1 year
Non-relapse mortality (NRM) is defined as death without known disease relapse or recurrence. The outcome is expressed as the number of transplant recipients whose cause of death was not disease relapse or recurrence, a number without dispersion.
1 year
Graft vs Host Disease (GvHD)
Time Frame: 1 year
Recipients will be monitored for Grade 2 to 4 graft vs host disease (GvHD). The outcome is reported as the number of transplant recipients who experienced acute GvHD grades 2 to 4, the number of transplant recipients who experienced chronic and extensive GvHD. In addition, the number of transplant recipients with chronic and extensive GvHD that was refractory to treatment ("persistent") is reported. Per protocol, the result for chronic extensive and persistent GvHD is based on the subset of participants that had chronic and extensive GvHD.
1 year

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Robert Lowsky, MD, Stanford University

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 (Actual)

November 5, 2018

Primary Completion (Actual)

December 26, 2019

Study Completion (Actual)

November 17, 2020

Study Registration Dates

First Submitted

November 6, 2018

First Submitted That Met QC Criteria

November 6, 2018

First Posted (Actual)

November 8, 2018

Study Record Updates

Last Update Posted (Actual)

December 12, 2023

Last Update Submitted That Met QC Criteria

November 20, 2023

Last Verified

May 1, 2021

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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