Ignite Creation Date:
2025-12-24 @ 10:56 PM
Ignite Modification Date:
2025-12-25 @ 8:24 PM
Study NCT ID:
NCT03494569
Status:
RECRUITING
Last Update Posted:
2025-11-07
First Post:
2018-04-04
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Total Marrow and Lymphoid Irradiation, Fludarabine, and Melphalan Before Donor Stem Cell Transplant in Treating Participants With High-Risk Acute Leukemia or Myelodysplastic Syndrome
Sponsor:
City of Hope Medical Center
Organization:
Study Overview
Official Title:
Phase I Study of Escalating Doses of Total Marrow and Lymphoid Irradiation (TMLI) Combined With Fludarabine and Melphalan as Conditioning for Allogeneic Hematopoietic Cell Transplantation in Patients With High-Risk Acute Leukemia or Myelodysplastic Syndrome
Status:
RECRUITING
Status Verified Date:
2025-11
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
This phase I studies the side effects and best dose of total marrow and lymphoid irradiation when given together with fludarabine and melphalan before donor stem cell transplant in treating participants with high-risk acute leukemia or myelodysplastic syndrome. Giving chemotherapy, such as fludarabine and melphalan, and total marrow and lymphoid irradiation before a donor stem cell transplant helps stop the growth of cells in the bone marrow, including normal blood-forming cells (stem cells) and cancer 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.
Detailed Description:
PRIMARY OBJECTIVES:
I. To determine the maximum tolerated dose/recommended phase II dose (MTD/RP2D) of total marrow and lymphoid irradiation (TMLI) with fixed doses of fludarabine and melphalan (FM100) as a preparative regimen in patients undergoing allogeneic hematopoietic stem cell transplantation (alloHCT) and who are not eligible for standard myeloablative regimens, with either a matched donor (Arm A) or a haploidentical donor (Arm B).
II. To describe toxicities attributable to TMLI by dose level in patients treated under this regimen.
SECONDARY OBJECTIVES:
I. To evaluate the safety of the regimen, at each dose level, by assessing the following: type, frequency, severity, attribution, time course and duration of adverse events, including acute/chronic graft versus host disease (GVHD), infection and delayed engraftment.
II. To investigate the temporal effect of bone marrow residual damage in alloHCT patients after TMLI/FM100.
III. To estimate overall survival (OS), event-free survival (EFS), cumulative incidence (CI) of relapse/progression, and non-relapse mortality (NRM) at 100 days, 1 year and 2 years.
IV. Assess minimal residual disease (MRD) from bone marrow aspirates on days 30, 100, and 180 post-transplant and describe its relation to TMLI dose level and patient disease status.
V. To evaluate effect of TMLI/FM100 conditioning on immune reconstitution after alloHCT in patients receiving stem cells from matched or haploidentical donors.
OUTLINE: This is a dose-escalation study of TMLI.
Participants undergo TMLI twice daily (BID) on days -8 to -5, and receive fludarabine intravenously (IV) on days -4 to -2 and melphalan on day -2. Participants then undergo alloHCT on day 0.
After completion of study treatment, participants are followed up twice weekly for 100 days, twice monthly for 6 months, and then monthly or yearly for up to 2 years.
I. To determine the maximum tolerated dose/recommended phase II dose (MTD/RP2D) of total marrow and lymphoid irradiation (TMLI) with fixed doses of fludarabine and melphalan (FM100) as a preparative regimen in patients undergoing allogeneic hematopoietic stem cell transplantation (alloHCT) and who are not eligible for standard myeloablative regimens, with either a matched donor (Arm A) or a haploidentical donor (Arm B).
II. To describe toxicities attributable to TMLI by dose level in patients treated under this regimen.
SECONDARY OBJECTIVES:
I. To evaluate the safety of the regimen, at each dose level, by assessing the following: type, frequency, severity, attribution, time course and duration of adverse events, including acute/chronic graft versus host disease (GVHD), infection and delayed engraftment.
II. To investigate the temporal effect of bone marrow residual damage in alloHCT patients after TMLI/FM100.
III. To estimate overall survival (OS), event-free survival (EFS), cumulative incidence (CI) of relapse/progression, and non-relapse mortality (NRM) at 100 days, 1 year and 2 years.
IV. Assess minimal residual disease (MRD) from bone marrow aspirates on days 30, 100, and 180 post-transplant and describe its relation to TMLI dose level and patient disease status.
V. To evaluate effect of TMLI/FM100 conditioning on immune reconstitution after alloHCT in patients receiving stem cells from matched or haploidentical donors.
OUTLINE: This is a dose-escalation study of TMLI.
Participants undergo TMLI twice daily (BID) on days -8 to -5, and receive fludarabine intravenously (IV) on days -4 to -2 and melphalan on day -2. Participants then undergo alloHCT on day 0.
After completion of study treatment, participants are followed up twice weekly for 100 days, twice monthly for 6 months, and then monthly or yearly for up to 2 years.
Study Oversight
Has Oversight DMC:
True
Is a FDA Regulated Drug?:
True
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
False
Is an FDA AA801 Violation?: