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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 II Study of Intensity Modulated Total Marrow Irradiation (IM-TMI) in Addition to Myeloablative Fludarabine/Busulfan and Post-Transplant Cyclophosphamide (PTCY) for Fully Human Leukocyte Antigen (HLA)-Matched and Partially-HLA Mismatched Allogeneic Transplantation Patients With High-Risk AML, CML, and MDS

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06802315
Acronym
BMT-13
Enrollment
38
Registered
2025-01-31
Start date
2025-02-04
Completion date
2032-03-31
Last updated
2025-06-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

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

Brief 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.

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.

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

Sponsors

University of Illinois at Chicago
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* 1\. Age 18-65 years. * 2\. Patients with CML, AML, or MDS who meet one of the following criteria: 2a. Relapsed or refractory 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 platelet transfusions. 2e. CML with a history of accelerated or blast phase.

Exclusion criteria

* 1\. Presence of significant co-morbidity as shown by: * 1a. Left ventricular ejection fraction \< 50% * 2b. Creatinine clearance \<30ml/min. * 3c. Bilirubin \> 2.0 mg/dL (unless due to Gilbert's syndrome or hemolysis), and ALT and AST \> 5 x ULN. * 4d. FEV1 and FVC \< 50% of predicted or DLCO \<50% of predicted once corrected for anemia. * 5e. Karnofsky score \<70 * 6f. Active viral hepatitis or HIV infection. * 7g. Cirrhosis. * 2\. Pregnancy or breast feeding * 3\. Patients unable to sign informed consent. * 4\. Patients previously received radiation to \>20% of bone marrow-containing areas.

Design outcomes

Primary

MeasureTime frameDescription
GVHD-Free Relapse-Free Survival after Stem Cell Transplant1 Year Post-Stem Cell TransplantThe 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.

Secondary

MeasureTime frameDescription
Time To Engraftment30 Days Post-Stem Cell Transplant
Adverse Events30 Days Post-Stem Cell TransplantThe number of adverse events and grades of severity per Common Terminology of Criteria for Adverse Events (version 5.0) and the Bearman scale.
Overall Survival2 Years Post-Stem Cell TransplantThe number of participants who have overall survival
Incidence of Chronic Graft Versus Host Disease180 Days Post-Stem Cell TransplantThe number of participants with Chronic Graft Versus Host Disease
Transplant-Related Mortality30 Days Post-Stem Cell TransplantThe number of participants with transplant-related mortality
Incidence of Acute Graft Versus Host Disease30 Days Post-Stem Cell TransplantThe number of participants with Acute Graft Versus Host Disease

Countries

United States

Contacts

Primary ContactMatias Sanchez, MD
matiass@uic.edu(312) 413-4260
Backup ContactMarisol Vega, MPH
vegam35@uic.edu(312) 413-5035

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026