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Irradiation-based Myeloablative Conditioning Followed by Treg/Tcon Immunotherapy in HSCT

Antileukemic Activity of Allogeneic Hematopoietic Stem Cell Transplantation With Fractionated Total Body Irradiation or Total Marrow and Lymph Node Irradiation Followed by Adoptive Immunotherapy With Regulatory and Conventional T Cells

Status
UNKNOWN
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03977103
Enrollment
80
Registered
2019-06-06
Start date
2014-02-28
Completion date
2023-02-28
Last updated
2020-01-13

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

Conditions

Acute Lymphoid Leukemia, Acute Myeloid Leukemia, Lymphoma, Multiple Myeloma, Myeloproliferative Disorders, Other Hematologic Malignant Neoplasms

Brief summary

To evaluate if hyper-fractionated TBI or TMLI followed by Treg/Tcon adoptive immunotherapy improve cGvHD/disease free survival after allogeneic HSCT in patients affected by high-risk acute leukemias or other hematologic malignancy where HSCT is indicated.

Detailed description

Improving cGvHD/disease free survival in patients with high-risk acute leukemias or other hematologic malignancy where HSCT is indicated with the use of a regulatory T cell based protocol. Hyper-fractionated Total Body Irradiation or Total Marrow and Lymphoid Irradiation based conditioning will be followed by the infusion of T regulatory and T conventional cell adoptive immunotherapy and a purified CD34+ hematopoietic stem cell graft. Incidence of Non Relapse Mortality, Relapse, acute Graft versus Host Disease, chronic Graft versus Host Disease, as well as probability of cGvHD/disease free survival will be assessed in patient subpopulations separated according to HLA-matching with the donor (HLA-matched HSCT and HLA-haploidentical HSCT) and type of disease (acute myeloid leukemia, acute lymphoid leukemia, lymphoma, multiple myeloma, myeloproliferative disease, and other).

Interventions

BIOLOGICALHigh dose irradiation conditioning + Treg/Tcon

High dose irradiation based conditioning regimens followed by infusion of donor regulatory and conventional T cells and purified CD34+ hematopoietic stem cell transplantation

Sponsors

University Of Perugia
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
No minimum to 75 Years
Healthy volunteers
No

Inclusion criteria

* AML and ALL in complete remission and with high-risk of relapse * AML and ALL primarily chemoresistant or relapsed; * Chronic Myeloid Leukemia in accelerated or blastic phase; * Patients affected by * Multiple myeloma, * Non Hodgkin lymphoma, * Hodgkin lymphoma, * Chronic myeloproliferative syndrome, * Chronic Lymphoid Leukemia, * Other Hematological malignancy at high-risk of relapse or detectable disease and where a HSCT is indicated. * Age \<75 years * ECOG ≤ 2 * Acceptable lung, liver, kidney, and heart function and absence of relevant psichiatric diseases * Signature of the informed consent

Exclusion criteria

* Age \>75 years * ECOG \> 2 * Not acceptable lung, liver, kidney, and heart function and presence of relevant psichiatric diseases * Pregnancy * No signature of the informed consent

Design outcomes

Primary

MeasureTime frameDescription
chronic GvHD/relapse-free survival2 yearsTo evaluate if irradiation based myeloablative conditioning followed by Treg/Tcon adoptive immunotherapy improve chronic GvHD/relapse-free survival (GRFS) after allogeneic HSCT in patients affected by acute leukemias or other hematologic malignancies where HSCT is indicated. GRFS will be assessed in subgroups of patients separated according to HLA-matching with the donor and type of disease (acute myeloid lekemia, acute lymphoid leukemia, other)

Secondary

MeasureTime frameDescription
full donor-type engraftment30 daysneutrophil and platelet engraftment measured by neutrophil counts \>500/mmc for 3 consecutive days and platelets count \>20000/mmc with 7 consecutive without platelet transfusion

Other

MeasureTime frameDescription
cumulative incidence of grades ≥ 2 acute GvHD6 monthscumulative incidence of grades ≥ 2 acute GvHD according to NIH consesus criteria
cumulative incidence of extensive chronic GvHD2 yearscumulative incidence of extensive chronic GvHD according to revised NIH consesus criteria (Jagasia et al. BBMT 2015)
cumulative incidence of non-relapse mortality2 yearscumulative incidence of non-relapse mortality, defined as death by any cause in the absence of relapse, as competitive risk versus relapse
cumulative incidence of relapse2 yearscumulative incidence of relapse, defined as disease recurrence according to marrow morphology, flow cytometry, cytogenetics, fluorescence in situ hybridization and/or polymerase chain reaction, as competitive risk versus non-relapse mortality

Countries

Italy

Contacts

Primary ContactAntonio Pierini, MD, PhD
antonio.pierini@unipg.it+390755784147
Backup ContactMara Merluzzi, MBioTech
maramerluzzi@libero.it+393482200239

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 15, 2026