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Harnessing the Immunosuppressive Leukemic Microenvironment to Engineer T Cells With Enhanced Anti-tumor Functionality (SynT)

3. august 2026 opdateret af: Eliana Ruggiero, IRCCS San Raffaele

This is a monocentric, retrospective and prospective study aimed to underline the potential of T-cell receptor (TCR)-mediated Ab recognition from the post transplant setting in acute myeloid leukemia (AML). The study is based on three key biological concepts:

  • the essential role of CD4+ T cells in leukemia immunosurveillance,
  • the impact of human leukocyte antigen (HLA) loss or downregulation on immune escape,
  • the ability of leukemic cells to remodel the tumor microenvironment and impair T-cell function.

By addressing these mechanisms, the study aims to identify novel TCRs and generate next-generation engineered T-cell products with improved anti-leukemic activity. The study will be conducted using samples from healthy donors and patients with AML.

The Retrospective part will involve samples collected per standard of care from patients already present in the institutional Hematologic Cancer Biobank, while prospective part will regard the use of samples collected during the study protocol from healthy donor and AML patients. Healthy donor peripheral blood samples will be used to isolate tumor-specific TCRs and generate engineered T cells, whereas bone marrow and peripheral blood samples from AML patients will be used to evaluate the anti-tumor activity of the engineered T cells.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Undersøgelsestype

Observationel

Tilmelding (Anslået)

65

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ja

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

The study will include samples from approximately 30 patients affected by acute myeloid leukemia (AML), including retrospective and prospective bone marrow (BM) and peripheral blood (PB) samples. Retrospective samples consist of BM and PB samples collected since April 2006 and stored in the Hematological Cancer Biobank of the Ospedale San Raffaele, under specific informed consent and in accordance with the objectives of the present study. Prospective samples will consist of additional peripheral blood volumes collected during routine clinical procedures from AML patients after signing study-specific informed consent. The study will also include samples from 25 healthy donors recruited through the agreement between Ospedale San Raffaele and Garbagnate Hospital.

Beskrivelse

Inclusion Criteria:

  1. Age ≥18 years
  2. Written informed consent to the regulation of Hematologic Cancer Biobank (EmaBank) of the San Raffaele Hospital (retrospective patients) and to the present study protocol (prospective patients or hematopoietic stem cell transplant donors harvested in the OSR biobank )
  3. Pregnant or breastfeeding and/or women of childbearing potential are eligible
  4. Diagnosis of AML (for patient participants)
  5. Hematopoietic stem cell transplant donors whose samples are stored in the OSR Biobank
  6. Patients or healthy donor should express the HLA allele(s) of interest

Exclusion Criteria:

1. Inability to provide a written informed consent.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Sunde frivillige
AML patients
Hematopoietic stem cell transplant donors

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Identification and functional characterization of novel tumor-specific TCRs
Tidsramme: From study initiation through month 24
Isolation of novel T-cell receptors (TCRs) and evaluation of the efficacy and safety of TCR-engineered T cells specific for HLA class II-restricted peptides through in vitro and in vivo studies. Efficacy will be assessed by antitumor activity and functional characterization, while safety will be evaluated through in vitro assays to identify potential off-target effects and other safety-related parameters.
From study initiation through month 24

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Development of therapeutic T-cell circuits and investigation of AML resistance to T-cell-mediated cytotoxicity
Tidsramme: From study initiation through year 5
Generation and validation of novel therapeutic T-cell circuits designed to enhance T-cell functionality by exploiting tumor-mediated immunosuppressive mechanisms. Engineered T-cell circuits will be evaluated in vivo for anti-tumor activity, and combinatorial therapeutic strategies will be tested to assess their potential to improve anti-tumor responses.
From study initiation through year 5

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

1. september 2026

Primær færdiggørelse (Anslået)

1. december 2028

Studieafslutning (Anslået)

31. december 2030

Datoer for studieregistrering

Først indsendt

29. juli 2026

Først indsendt, der opfyldte QC-kriterier

29. juli 2026

Først opslået (Faktiske)

3. august 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

6. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

3. august 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • SynT

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

UBESLUTET

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .