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RecruitingNCT06802315BMT-13Updated Jun 26, 2026

Intensity Modulated Total Marrow Irradiation in Fully Human Leukocyte Antigen (HLA)-Matched and Partially-HLA Mismatched Allogeneic Transplantation Patients With High-Risk Acute Myeloid Leukemia (AML), Chronic Myeloid Leukemia (CML), and Myelodysplastic Syndrome (MDS)

A Phase 2 interventional study of Intensity modulated total marrow irradiation and Cyclophosphamide (CTX) in Acute Myeloid Leukemia, Relapsed, Adult, Acute Myeloid Leukemia Refractory and Chronic Myeloid Leukemia - Accelerated Phase, sponsored by University of Illinois at Chicago. Recruiting at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-06-26.

Sponsored by University of Illinois at Chicago · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Started Feb 2025; still recruiting 1 year 9 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
38
Allocation
Not applicable
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The study is a Phase II clinical trial. Patients will receive intensity-modulated total marrow irradiation (TMI) at a dose of 9 Gray (Gy) with standard myeloablative fludarabine intravenous (IV) and targeted busulfan (FluBu4) conditioning prior to allogeneic hematopoietic stem cell transplant (HSCT). Graft-versus-host disease (GVHD) prophylaxis will include Cyclophosphamide on Day +3 and +4, tacrolimus, and mycophenolate mofetil.

Read the detailed description

Patients will receive the following conditioning regimen: fludarabine 40 mg/m2 IV piggyback daily, from day -5 (5 days before stem cell infusion) through Day -2, IV busulfan targeting a 4800 μM/min/ day, from day -5 through day -2. In addition to the above chemotherapy, all patients will receive TMI at a dose of 3Gy on days -3, -2, and -1. On day 0, the stem cell product will be infused according to BMT (Bone Marrow Transplant) unit policy. Graft versus host disease (GVHD) prophylaxis will consist of the administration of Cyclophosphamide 50 mg/Kg on days 3 and 4 and mycophenolate mofetil combined with tacrolimus. Post-transplant evaluation will be done per standard care with study data collected at days 30, 60, 90, 180, 365, and 2 years.

02

Conditions studied

  • Acute Myeloid Leukemia, Relapsed, Adult
  • Acute Myeloid Leukemia Refractory
  • Chronic Myeloid Leukemia - Accelerated Phase
  • Myelodysplastic Syndromes

Keywords

  • Total Marrow Irradiation
  • Stem Cell Transplant
  • Allogenic Transplant
03

In context

Leukemia, Myeloid, Acute

3,667 studies on the registry are indexed under Leukemia, Myeloid, Acute; 816 are open to participants now.

This study's planned enrollment of 38 is close to the median of 40 across 3,005 interventional studies indexed under Leukemia, Myeloid, Acute.

Browse Leukemia, Myeloid, Acute studies →

Lead sponsor

University of Illinois at Chicago is the lead sponsor of 506 studies on the registry; 120 are open to participants now.

Of its 32 completed or terminated interventional studies of FDA-regulated products, 19 (59%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 1. Age 18-65 years.
  • 2. Patients with CML, AML, or MDS who meet one of the following criteria: 2a. AML (including AML in CR2) 2b. Poor-risk AML in first remission, with remission defined as \<5% bone marrow blasts morphologically:
  • AML arising from MDS, a myeloproliferative disorder, or secondary AML
  • Poor risk molecular features according to Leukemia Net including ASXL1, BCOR, EZH2, RUNX1, SF3B1, SRSF2, STAG2, U2AF1, and/or ZRSR2
  • Poor-risk cytogenetics: Monosomal karyotype, complex karyotype (> 3 abnormalities), inv (3), t(3;3), t(6;9), MLL rearrangement with the exception of t(9;11), or abnormalities of chromosome 5 or 7. 2c. Primary refractory disease 2d. MDS with at least one of the following poor-risk features:
  • Poor-risk cytogenetics including 3q abnormalities, 7/7q minus or complex cytogenetics (>3 abnormalities).
  • Current or previous INT-2 or high IPSS score.
  • Treatment-related MDS.
  • MDS diagnosed before the age of 21 years.
  • Progression on or lack of response to standard DNA-methyltransferase inhibitor therapy.
  • Life-threatening cytopenias, including those requiring regular PRBC or transfusions. 2e. CML with a history of accelerated or blast phase.

Exclusion criteria

Exclusion Criteria:

  • 1. Presence of significant co-morbidity as shown by:
  • 1a. \< 50%
  • 2b. \<30ml/min.
  • 3c. > 2.0 mg/dL (unless due to Gilbert's syndrome or hemolysis), and and AST > 5 x .
  • 4d. and FVC \< 50% of predicted or DLCO \<50% of predicted once corrected for anemia.
  • 5e. score \<70
  • 6f. Active viral hepatitis or infection.
  • 7g. Cirrhosis.
  • 2. Pregnancy or breast feeding
  • 3. Patients unable to sign .
  • 4. Patients previously received radiation to >20% of bone marrow-containing areas.
Terms in these criteria, in plain language(11)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

FEV1

From a breathing test (spirometry): how much air you can blow out in the first second. Often given as a percentage of what is expected for your age, height and sex.

Karnofsky performance status (KPS)

A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.

Studies often ask for 60 or 70 and above. Your doctor gives the score.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
38 participants (estimated)

Study arms

  • Experimental
    Treatment Regimen

    Days -5 through -2: Fludarabine 40 mg/m2 IVPB daily and Busulfan targeting AUC 4800μM/min daily Day -3 through -1: Intensity modulated total marrow irradiation (9Gy fractionated) Day 0: Infuse peripheral blood mobilized stem cells Days +3 and +4: Cyclophosphamide 50 mg/kg/day Day 5: Mycophenolate mofetil and Tacrolimus (dose adjustment dependent on trough level) Day 30: Follow up Day 60: Follow up Day 90: Follow up Day 180: Follow up 1. year: Follow up 2. year: Follow up

    Radiation: Intensity modulated total marrow irradiation · Drug: Cyclophosphamide (CTX) · Drug: Fludarabine (Fludara) · Drug: Busulfan (conditioning for ALLO Transplant)

Interventions

  • RadiationIntensity modulated total marrow irradiation

    See "Treatment Regimen"

  • This study will determine the safety of the combination of Total Marrow Irradiation (TMI) and Post-Transplant Cyclophosphamide using a myeloablative fludarabine and iv targeted busulfan (Flu/Bu4) conditioning regimen.

  • chemotherapy conditioning

  • chemotherapy conditioning

06

What researchers measure

Primary outcomes

  1. GVHD-Free Relapse-Free Survival after Stem Cell Transplant

    The 1-year GVHD- free relapse-free survival after HSCT (hematopoietic stem cell transplantation) conditioned with a 9Gy TMI in combination with FluBu4 and PTCY in patients with acute myeloid leukemia (AML), chronic myeloid leukemia (CML), Myelodysplastic Syndrome (MDS) at high risk of relapse.

    Time frame: 1 Year Post-Stem Cell Transplant

Secondary outcomes

  1. Overall Survival

    The number of participants who have overall survival

    Time frame: 2 Years Post-Stem Cell Transplant

  2. Time To Engraftment

    Time frame: 30 Days Post-Stem Cell Transplant

  3. Adverse Events

    The number of adverse events and grades of severity per Common Terminology of Criteria for Adverse Events (version 5.0) and the Bearman scale.

    Time frame: 30 Days Post-Stem Cell Transplant

  4. Adverse Events

    The number of adverse events and grades of severity per Common Terminology of Criteria for Adverse Events (version 5.0).

    Time frame: 60 Days Post-Stem Cell Transplant

  5. Adverse Events

    The number of adverse events and grades of severity per Common Terminology of Criteria for Adverse Events (version 5.0)

    Time frame: 90 Days Post-Stem Cell Transplant

  6. Adverse Events

    The number of adverse events and grades of severity per Common Terminology of Criteria for Adverse Events (version 5.0).

    Time frame: 180 Days Post-Stem Cell Transplant

  7. Adverse Events

    The number of adverse events and grades of severity per Common Terminology of Criteria for Adverse Events (version 5.0).

    Time frame: 1 Year Post-Stem Cell Transplant

  8. Incidence of Acute Graft Versus Host Disease

    The number of participants with Acute Graft Versus Host Disease

    Time frame: 30 Days Post-Stem Cell Transplant

  9. Incidence of Acute Graft Versus Host Disease

    The number of participants with Acute Graft Versus Host Disease

    Time frame: 60 Days Post-Stem Cell Transplant

  10. Incidence of Acute Graft Versus Host Disease

    The number of participants with Acute Graft Versus Host Disease

    Time frame: 90 Days Post-Stem Cell Transplant

  11. Incidence of Acute Graft Versus Host Disease

    The number of participants with Acute Graft Versus Host Disease

    Time frame: 180 Days Post-Stem Cell Transplant

  12. Incidence of Acute Graft Versus Host Disease

    The number of participants with Acute Graft Versus Host Disease

    Time frame: 1 Year Post-Stem Cell Transplant

  13. Incidence of Chronic Graft Versus Host Disease

    The number of participants with Chronic Graft Versus Host Disease

    Time frame: 180 Days Post-Stem Cell Transplant

  14. Incidence of Chronic Graft Versus Host Disease

    The number of participants with Chronic Graft Versus Host Disease

    Time frame: 1 Year Post-Stem Cell Transplant

  15. Transplant-Related Mortality

    The number of participants with transplant-related mortality

    Time frame: 30 Days Post-Stem Cell Transplant

  16. Transplant-Related Mortality

    The number of participants with transplant-related mortality

    Time frame: 60 Days Post-Stem Cell Transplant

  17. Transplant-Related Mortality

    The number of participants with transplant-related mortality

    Time frame: 90 Days Post-Stem Cell Transplant

  18. Transplant-Related Mortality

    The number of participants with transplant-related mortality

    Time frame: 180 Days Post-Stem Cell Transplant

  19. Transplant-Related Mortality

    The number of participants with transplant-related mortality

    Time frame: 1 Year Post-Stem Cell Transplant

07

Study locations

1 of 1 sites recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 26, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06802315
Responsible party
Matias Sanchez (Principal Investigator, University of Illinois at Chicago) — Principal investigator
First posted
Jan 31, 2025
Start date
Feb 4, 2025
Primary completion
Mar 2030 (estimated)
Completion
Mar 2032 (estimated)
Last update
Jun 26, 2026

Study contacts

Matias Sanchez, MD
Contact
matiass@uic.edu
(312) 413-4260
Marisol Vega, MPH
Contact
vegam35@uic.edu
(312) 413-5035
Matias Sanchez, MD
principal investigator · University of Illinois at Chicago

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drugs tested here: Cyclophosphamide · Fludarabine phosphate · Busulfan

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