Intensity Modulated Total Marrow Irradiation, Fludarabine Phosphate, and Melphalan in Treating Patients With Relapsed Hematologic Cancers Undergoing a Second Donor Stem Cell Transplant

March 24, 2026 updated by: University of Chicago

A Phase I Study of Intensity Modulated Total Marrow Irradiation (IMTMI) in Addition to Fludarabine/Melphalan Conditioning for Allogeneic Transplantation for Advanced Hematologic Malignancies

This phase I trial studies the side effects and the best dose of intensity modulated total marrow irradiation (IMTMI) when given together with fludarabine phosphate and melphalan in treating patients with cancers of the blood (hematologic) that have returned after a period of improvement (relapsed) undergoing a second donor stem cell transplant. IMTMI is a type of radiation therapy to the bone marrow that may be less toxic and may also reduce the chances of cancer to return. Giving fludarabine phosphate, melphalan, and IMTMI before a donor stem cell transplant may help 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.

Study Overview

Detailed Description

PRIMARY OBJECTIVES:

I. The determine the maximum tolerated dose (MTD) of intensity-modulate total marrow irradiation (IMTMI) in combination with fludarabine (fludarabine phosphate)/melphalan as conditioning for second allogeneic stem cell transplantation for patients with hematologic malignancies.

SECONDARY OBJECTIVES:

I. To determine the overall toxicity and day 100 transplant related mortality after second allogeneic hematopoietic stem cell transplantation conditioned with increasing doses of intensity-modulate total marrow irradiation (IMTMI) in combination with fludarabine/melphalan.

II. To determine the time to neutrophil and platelet engraftment after second allogeneic hematopoietic stem cell transplantation conditioned with increasing doses of intensity-modulate total marrow irradiation (IMTMI) in combination with fludarabine/melphalan.

III. To determine the overall survival (OS) and event-free-survival (EFS) in patients with hematologic undergoing second allogeneic hematopoietic stem cell transplant (HSCT) after conditioning with fludarabine/melphalan and IMTMI.

OUTLINE: This is a dose-escalation study of IMTMI.

CONDITIONING REGIMEN: Patients receive fludarabine phosphate intravenously (IV) over 30 minutes daily on days -7 to -3 and melphalan IV on day -2. Patients also undergo IMTMI twice daily (BID) for 2 to 5 days between days -7 to -3.

TRANSPLANT: Patients undergo allogeneic peripheral blood stem cell transplant (PBSCT) or bone marrow transplant (BMT) on day 0.

GRAFT-VERSUS-HOST DISEASE (GVHD) PROPHYLAXIS: Patients receive tacrolimus IV continuously over 24 hours or orally (PO) BID on days -2 to 180 with taper thereafter and mycophenolate mofetil IV every 8 hours or PO on days 0-28 (for matched donors) or days 0-40 (for alternative donors) with taper to day 60.

After completion of treatment, patients are followed up periodically for 1 year and then yearly for 2 years.

Study Type

Interventional

Enrollment (Estimated)

30

Phase

  • 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

    • Illinois
      • Chicago, Illinois, United States, 60637
        • University of Chicago Comprehensive Cancer Center

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 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients with the following diseases: acute myeloid leukemia (AML) and high risk myelodysplastic syndrome (MDS) undergoing second allogeneic (allo)-stem cell transplant (SCT) using the same donor or different donor for disease relapse; patients with other hematologic malignancies, including acute lymphoblastic leukemia (ALL), will be at the discretion of the investigators
  • Karnofsky performance status of 70 or above
  • Life expectancy is not severely limited by concomitant illness
  • Adequate cardiac and pulmonary function; patients with decreased left ventricular ejection fraction (LVEF) =< 40% or diffusion capacity of carbon monoxide (DLCO) =< 50% of predicted will be evaluated by cardiology or pulmonary prior to enrollment on this protocol
  • Serum creatinine =<1.5 mg/dL or creatinine clearance > 50 ml/min; some patients with minor deviations may be accepted on protocol after discussion with the principal investigator (PI)
  • Serum bilirubin =< 2.0 mg/dl; some patients with minor deviations may be accepted on protocol after discussion with the PI
  • Serum glutamic oxaloacetic transaminase (SGPT) < 5 x upper limit of normal; some patients with minor deviations may be accepted on protocol after discussion with the PI
  • No evidence of chronic active hepatitis or cirrhosis
  • Human immunodeficiency virus (HIV)-negative
  • Patient is not pregnant
  • Patient or guardian able to sign informed consent
  • DONOR: Since these patients already had first allo-SCT; in the majority time, the same matched donor has been used for second allo-SCT; if the patients have multiple donors, alternative matched (8/8 or 10/10) donor could be used for the second allo-SCT; the donor could be matched related donors or matched unrelated donors from registry
  • DONOR: If more than one potential volunteer unrelated donor is considered suitable, further selection of the most suitable donor will be prioritized as follows or will follow our institutional guideline from our stem cell transplant standard operating procedure (SOP):

    • Age of donor (18-24 > 25-34 > 35-44 > 45+)
    • Sex of donor (male > female, nulliparous female > parous, multiparous female)
    • Cytomegalovirus (CMV) status, if recipient is CMV seronegative (CMV- > CMV+

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: Treatment (IMTMI, combination chemotherapy, PBSCT or BMT)

CONDITIONING REGIMEN: Patients receive fludarabine phosphate IV over 30 minutes daily on days -7 to -3 and melphalan IV on day -2. Patients also undergo IMTMI BID for 2 to 5 days between days -7 to -3.

TRANSPLANT: Patients undergo allogeneic PBSCT or BMT on day 0.

GVHD PROPHYLAXIS: Patients receive tacrolimus IV continuously over 24 hours or PO BID on days -2 to 180 with taper thereafter and mycophenolate mofetil IV every 8 hours or PO on days 0-28 (for matched donors) or days 0-40 (for alternative donors) with taper to day 60.

Correlative studies
Given IV
Other Names:
  • Alkeran
Given IV
Other Names:
  • 2-F-ara-AMP
  • Beneflur
  • SH T 586
Given IV or PO
Other Names:
  • FK 506
  • Advagraf
Given IV or PO
Other Names:
  • Cellcept
  • MMF
Undergo allogeneic PBSCT
Other Names:
  • PBPC transplantation
  • Peripheral Blood Progenitor Cell Transplantation
  • Peripheral Stem Cell Support
  • Peripheral Stem Cell Transplantation
Undergo allogeneic PBSCT
Other Names:
  • HSC
  • HSCT
Undergo allogeneic BMT
Other Names:
  • Allo BMT
  • Allogeneic BMT
Undergo IMTMI
Other Names:
  • IMRT
  • Intensity Modulated RT
  • Intensity-Modulated Radiotherapy
Undergo IMTMI

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
MTD of conditioning regimen defined as any grade III or higher dose-limiting toxicity, graded according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.0
Time Frame: Up to 30 days post second allo-SCT
Up to 30 days post second allo-SCT

Secondary Outcome Measures

Outcome Measure
Time Frame
Overall incidence of adverse events, graded according to the NCI CTCAE version 4.0
Time Frame: Up to 2 years
Up to 2 years
Transplant related mortality
Time Frame: Day 100
Day 100
Time to neutrophil engraftment
Time Frame: First day in which the ANC is > 500/mm^3 for 3 consecutive days
First day in which the ANC is > 500/mm^3 for 3 consecutive days
Time to platelet engraftment
Time Frame: First day the platelet count is > 20,000/mm^3 without transfusion support for 7 consecutive days
First day the platelet count is > 20,000/mm^3 without transfusion support for 7 consecutive days
overall survival (OS)
Time Frame: Up to 2 years
Up to 2 years
event-free-survival (EFS)
Time Frame: Up to 2 years
Up to 2 years

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Hongtao Liu, University of Chicago Comprehensive Cancer Center

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)

December 5, 2014

Primary Completion (Estimated)

December 1, 2028

Study Completion (Estimated)

December 1, 2028

Study Registration Dates

First Submitted

January 5, 2015

First Submitted That Met QC Criteria

January 6, 2015

First Posted (Estimated)

January 7, 2015

Study Record Updates

Last Update Posted (Actual)

March 30, 2026

Last Update Submitted That Met QC Criteria

March 24, 2026

Last Verified

March 1, 2026

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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