Safely Delivered Targeted High-dose Irradiation Followed by Adoptive Immunotherapy with Regulatory and Conventional T Cells to Increase Potency of Hematopoietic Stem Cell Transplantation in High-risk Acute Leukemia

NCT ID: NCT06845592

Last Updated: 2025-03-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

51 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-02-25

Study Completion Date

2031-01-31

Brief Summary

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The study is a monocentric, interventional study that evaluates the efficacy of allogeneic HLA-matched or haploidentical transplantation consisting of an irradiation-based conditioning regimen coupled with donor Treg/Tcon adoptive immunotherapy for high-risk acute leukemia patients.

Detailed Description

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Conditions

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Acute Myeloid Leukaemia (AML) Acute Lymphoblastic Leukemia ALL High Risk Leukaemia Leukaemia Relapse

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

A Simon's Minimax two-stage design has been chosen for predicting number of patients and duration of the study. Such design allows the investigator to early stop patient enrollment in case of unexpected futility.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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TMLI based contioning and Treg/Tcon adoptive immunotherapy in allogeneic cell transplantation

All enrolled patients will receive a 20Gy-TMLI based conditioning regimen followed by the infusion of donor graft and Treg/Tcon adoptive immunotherapy

Group Type EXPERIMENTAL

total marrow/lymphoid irradiation

Intervention Type RADIATION

Combination of 20 Gy TMLI with Treg/Tcon adoptive immunotherapy in allogeneic cell transplantation

Interventions

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total marrow/lymphoid irradiation

Combination of 20 Gy TMLI with Treg/Tcon adoptive immunotherapy in allogeneic cell transplantation

Intervention Type RADIATION

Eligibility Criteria

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Inclusion Criteria

* AML patients

* Diagnosis of AML with indication to allogeneic hematopoietic cell transplantation.
* Diagnosis of adverse genetic risk leukemia or presence of MRD or active disease (bone marrow infiltration 5-30%) at the time of the transplant procedure.
* Availability of a hematopoietic stem cell donor (family or unrelated HLA-matched or HLA-haploidentical with the patient) suitable to be treated with G-CSF (10 mcg/kg/die) for a maximum of 7 days and able to tolerate 2 or more leukaphereses.
* Age ≥ 18 and ≤ 65 years
* ECOG ≤ 2
* HCT-CI ≤ 4 (51,52)
* Absence of relevant psychiatric diseases
* Signature of the informed consent

ALL patients

* Diagnosis of ALL, either T or B (Philadelphia negative) or mixed phenotype with indication to allogeneic transplant
* Presence of MRD or active disease (bone marrow infiltration 5-30%) or patient with ≥ 2nd complete hematologic remission at the time of the transplant procedure.
* Availability of a hematopoietic stem cell family donor (family or unrelated HLA-matched or HLA-haploidentical with the patient) suitable to be treated with G-CSF (10 mcg/kg/die) for a maximum of 7 days and able to tolerate 2 or more leukaphereses.
* Age ≥ 18 and ≤ 65 years
* ECOG ≤ 2
* HCT-CI ≤ 4
* Absence of relevant psychiatric diseases
* Signature of the informed consent

Exclusion Criteria

* AML patients

* AML in CR MRD-
* AML with \> 5% peripheral blasts or bone marrow infiltration ≥ 30%
* Age \< 18 years or \> 65 years
* ECOG \> 2
* Unacceptable lung, liver, kidney, and/or heart function and presence of relevant psychiatric diseases according to clinical judgment
* Pregnancy
* No signature of the informed consent
* ALL patients

* ALL with \> 5% peripheral blasts or bone marrow infiltration ≥30%
* Philadelphia positive ALL
* Age \< 18 years or \> 65 years
* ECOG \> 2
* Unacceptable lung, liver, kidney, and/or heart function and presence of relevant psychiatric diseases according to clinical judgment
* Pregnancy
* No signature of the informed consent
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Of Perugia

OTHER

Sponsor Role lead

Responsible Party

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Antonio Pierini

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Università degli Studi di Perugia

Perugia, PG, Italy

Site Status RECRUITING

Countries

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Italy

Central Contacts

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Antonio Pierini

Role: CONTACT

+393355477611 ext. +39

Loredana Ruggeri

Role: CONTACT

+393388953982 ext. +39

Facility Contacts

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Antonio Pierini, MD, PhD

Role: primary

3355477611

References

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