Ignite Creation Date:
2025-12-24 @ 2:41 PM
Ignite Modification Date:
2026-02-01 @ 5:03 PM
Study NCT ID:
NCT06673459
Status:
NOT_YET_RECRUITING
Last Update Posted:
2024-11-05
First Post:
2024-11-02
Is Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
BuCy Vs. TBICy for Allo-HSCT in T-ALL Patients
Sponsor:
The First Affiliated Hospital of Soochow University
Organization:
Study Overview
Official Title:
Busulfan Plus Cyclophosphamide Vs. Total Body Irradiation Plus Cyclophosphamide for Allogeneic Hematopoietic Stem Cell Transplantation in Patients with Acute T Lymphoblastic Leukemia: a Randomized Controlled, Open-label, Multi-center Clinical Trial
Status:
NOT_YET_RECRUITING
Status Verified Date:
2024-05
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:
T-cell acute lymphoblastic leukemia (T-ALL), a hematological malignant neoplasm of immature T cells, accounting for a morbidity of 10-15% among pediatric and 20-25% among adult patients of ALL. Despite the application of improved intensive therapies, the overall survival (OS) of T-ALL patients is still unsatisfactory, with a 5-year OS rate of less than 60% in adults and 85% in children. Over the past few decades, allogeneic hematopoietic stem-cell transplantation (allo-HSCT) has emerged as a potential and the most likely curative treatment for patients with high-risk hematological malignant neoplasms, and it has been proven that allo-HSCT could hold the potential to improve the prognosis of T-ALL patients and may even cure T-ALL.
The two most common myeloablative conditioning regimens for T-ALL patients with allo-HSCT were total body irradiation (TBI) plus cyclophosphamide (TBI-Cy) and busulfan (Bu) plus cyclophosphamide (BuCy). The most common use conditioning regimen for ALL patients is the TBI-Cy conditioning regimen over other hematological malignancy patients because TBI possess potent and distinct anti-leukemic effects, particularly in organs not easily affected by systemic chemotherapy and intense immunosuppressive effects. However, TBI-based conditioning regimens may cause a high risk of cataracts, interstitial pneumonitis (IP), engraftment failure and even subsequent malignant neoplasms (SMNs). To avoid these disadvantages, intravenous Bu replaced TBI as a part of conditioning.
Extensive studies have shown that allo-HSCT with conditioning regimens based on TBI could benefit survival compared with conditioning regimens based on chemotheraphy in treating ALL. We retrospectively analyzed post-10-year data from T-ALL patients from two transplant centers, and all the databases were used to eliminate confounding factors via PSM. We demonstrated that the TBI-Cy conditioning regimen had inferior efficacy to the BuCy conditioning regimen, especially for T-ALL patients who were children, refractory, had extramedullary disease before transplantation, had active disease or an MRD-positive status at allo-HSCT, or who received haplo-HSCT.
The two most common myeloablative conditioning regimens for T-ALL patients with allo-HSCT were total body irradiation (TBI) plus cyclophosphamide (TBI-Cy) and busulfan (Bu) plus cyclophosphamide (BuCy). The most common use conditioning regimen for ALL patients is the TBI-Cy conditioning regimen over other hematological malignancy patients because TBI possess potent and distinct anti-leukemic effects, particularly in organs not easily affected by systemic chemotherapy and intense immunosuppressive effects. However, TBI-based conditioning regimens may cause a high risk of cataracts, interstitial pneumonitis (IP), engraftment failure and even subsequent malignant neoplasms (SMNs). To avoid these disadvantages, intravenous Bu replaced TBI as a part of conditioning.
Extensive studies have shown that allo-HSCT with conditioning regimens based on TBI could benefit survival compared with conditioning regimens based on chemotheraphy in treating ALL. We retrospectively analyzed post-10-year data from T-ALL patients from two transplant centers, and all the databases were used to eliminate confounding factors via PSM. We demonstrated that the TBI-Cy conditioning regimen had inferior efficacy to the BuCy conditioning regimen, especially for T-ALL patients who were children, refractory, had extramedullary disease before transplantation, had active disease or an MRD-positive status at allo-HSCT, or who received haplo-HSCT.
Detailed Description:
None
Study Oversight
Has Oversight DMC:
True
Is a FDA Regulated Drug?:
False
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?: