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Hematological MalignanciesPhase 3DLI-BoostNCT03236129

Allogeneic Immunotherapy for Hematological Malignancies by Selective Depletion of Regulatory T Cells

A Phase 3 study testing T-reg depleted DLI and Standard DLI in people with Hematological Malignancies and Regulatory T Cell Depletion, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The investigators have previously shown the absence of toxicity of Treg-depleted-DLI and the possibility to triggering alloreactivity (GVHD/GVT) in relapsing patients dealing with hematological malignancies who had never shown any signs of GVHD after transplant or after one or more DLI. Read more about this study

Who is it for?
Any age
What is being tested?
T-reg depleted DLI and Standard DLI
Could I receive a placebo?
No, everyone receives an active treatment
How many people
52 participants
Where
1 siteFrance
Study dates
22 Feb 2018to Feb 2026
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Children and adults regardless of age or weight allograft for primary or secondary acute leukemia, MDS, lympho-proliferative syndrome (CLL, Myeloma, Lymphoma) or myelo-proliferative syndrome.
  • Prior allogeneic HSCT (myeloablative or non-myeloablative conditioning) from a family donor geno-identical HLA or a volunteer donor HLA 10/10 or 9/10.
  • Molecular, cytogenetic, cytological relapse regardless of the date after the transplant.
  • Previous standard DLI should have brought a total dose of at least 5.10^6 CD3 + / kg (donor HLA-geno idendique) or 2.10^6 CD3 + / kg (voluntary donor) or 5.10^5 CD3+/kg (donor haplo-idendique).
  • Patient corresponding to the failure criteria of a previous standard DLI, defined for each type of hematological malignancies in the test model "DLI-Treg-1" after a delay of at least 30 days in the case of a progressive disease after DLI and at least 60 days in the case of stable disease (due to possible delayed responses after DLI).
  • Patient consented to the study (the consent of both parents will be collected for minors)
  • Patients insured by a social security system.
  • Negative pregnancy test (β-HCG hormone) within the 7 days prior to enrollment

Who cannot join

  • Presence of acute GVHD grade> II or extensive chronic GVHD since the first DLI
  • Patient receiving immunosuppressive therapy for the treatment of GVHD or other reason
  • Impairment of liver function (transaminases> 5 N or bilirubin> 50 µM except Gilbert's disease) or renal function (creatinine clearance <30 ml / min)
  • OMS performance status > 2
  • Non controlled severe infection
  • Patient under tutorship, curatorship or legal protection
Show all 13Show fewer
  • Donor Inclusion Criteria
  • Being the initial HSC donor (HLA geno-identical family or haplo-identique or non-family HLA 10/10 or 9/10)
  • Weight ≥20 kg authorizing the lymphapheresis
  • Having no contra-indications for donating blood
  • Absence of severe heart failure, unstable heart disease, uncontrolled hypertension, type 1 diabetes
  • Negative serology for HIV1-2, HBV, HCV, HTLV 1 and VDRL/TPHA in the 30 days prior to apheresis. Negative viral genomics diagnosis is required for HIV, HBV and HCV
  • Being informed of the study, and have given an oral non opposition

Trial locations and contacts

1 site in 1 country.

France1 site, 1 recruiting
  • Henri Mondor Hospital

    Créteil, 94010

    Damien VANHOYE, PhD, (0)1 44 84 17 93 ext. +33, damien.vanhoye@drc.aphp.fr

    Laetitia GREGOIRE, M. Sc, (0)1 49 81 41 64 ext. +33, Laetitia.gregoire@aphp.fr

    Recruiting

Other trials in France

About this study

Official title: Allogeneic Immunotherapy for Hematological Malignancies by Selective Depletion of Regulatory T Cells: A Confirmatory, Randomized, Double Blinded Trial

The investigators have previously shown the absence of toxicity of Treg-depleted-DLI and the possibility to triggering alloreactivity (GVHD/GVT) in relapsing patients dealing with hematological malignancies who had never shown any signs of GVHD after transplant or after one or more DLI.

The Investigators, we plan to demonstrate the benefit of Treg-depleted DLI as compared to the reference treatment of relapse in hematological malignancies after allogeneic HSCT which is currently based on standard DLI

Read the detailed description

This clinical trial is designed to demonstrate the benefit of Treg-depleted DLI as compared to the reference treatment of relapse in hematological malignancies after allogeneic HSCT which is currently based on standard DLI.

Patients who have never shown any signs of GVHD and for which one (or more) unmanipulated DLI have been ineffective. Those patients will receive a subsequent DLI, which will be either unmanipulated (control arm) or Treg depleted (experimental arm) after a randomization. In both cases, the second DLI will be immediately preceded by a lymphodepleting treatment based on cyclophosphamide and fludarabine association.

Being tested
T-reg depleted DLI, Standard DLI
Keywords
DLI, Regulatory T cells depletion, Hematological malignancies, Relapse
Medical subject headings
Hematologic Neoplasms, Recurrence

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • T-reg depleted DLIProcedure or surgery

    The patients in the experimental arm benefit of a DLI depleted from regulatory T lymphocytes

  • Standard DLIProcedure or surgery

    The patients in this arm benefit of a standard DLI.

Study groups in NCT03236129
Study groupRoleWhat they receive
Treg depleted DLIExperimentalPatients will receive a lymphodepleting treatment combining cyclophosphamide and fludarabine followed by Treg depleted (Donor Lymphocytes Infusion (DLI)
Receives: Procedure: T-reg depleted DLI
Unmanipulated DLIActive comparatorPatients will receive a lymphodepleting treatment combining cyclophosphamide and fludarabine followed by a standard DLI (unmanipulated)
Receives: Procedure: Standard DLI

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cumulative incidence of clinical manifestations of GVHD, in the form of acute GVHD with grade ≥ 2 and/or extensive chronic. This parameter will take into account the competitive risk of death unrelated to the GVHD

    Measured: 3 month after injection

Secondary outcomes (3)
  1. Cumulative incidence of relapse, taking into account the competitive risk of death unrelated to relapse

    Measured: 1 year after injection

  2. Relapse-free survival

    Measured: 1 year after injection

  3. Overall survival

    Measured: 1 year after injection

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Aug 2017
  2. Study start22 Feb 2018
  3. Primary completionFeb 2025 (estimated)
  4. Study completionFeb 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
52 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03236129
Sponsor's protocol ID
P140303
Other IDs
2016-A00645-46
Acronym
DLI-Boost
Status last verified
Dec 2023
First submitted
5 Jul 2017
Last updated
18 Dec 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Maury S, Lemoine FM, Hicheri Y, Rosenzwajg M, Badoual C, Cherai M, Beaumont JL, Azar N, Dhedin N, Sirvent A, Buzyn A, Rubio MT, Vigouroux S, Montagne O, Bories D, Roudot-Thoraval F, Vernant JP, Cordonnier C, Klatzmann D, Cohen JL. CD4+CD25+ regulatory T cell depletion improves the graft-versus-tumor effect of donor lymphocytes after allogeneic hematopoietic stem cell transplantation. Sci Transl Med. 2010 Jul 21;2(41):41ra52. doi: 10.1126/scitranslmed.3001302.

    PubMed 20650872

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing T-reg depleted DLI and Standard DLI in people with Hematological Malignancies and Regulatory T Cell Depletion, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 18 Dec 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Florence BECKERICH, MD ((0)1 49 81 20 57 ext. +33, florence.beckerich@aphp.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Cumulative incidence of clinical manifestations of GVHD, in the form of acute GVHD with grade ≥ 2 and/or extensive chronic. This parameter will take into account the competitive risk of death unrelated to the GVHD (time frame: 3 month after injection). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03236129, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Dec 2023.

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