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Acute Myeloid LeukemiaPhase 1/2NCT05066958

Ex-vivo Primed Memory Donor Lymphocyte Infusion to Boost Anti-viral Immunity After T-cell Depleted HSCT

A Phase 1/2 study testing boost anti-viral immunity after T-cell depleted HSCT in people with Acute Myeloid Leukemia and High Risk Acute Myeloid Leukemia, run by Federal Research Institute of Pediatric Hematology, Oncology and Immunology at 1 site in Russia.

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 The sponsor has not verified this record for over two years, so it may be out of date.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

HSCT from an allogeneic donor is the standard therapy for high-risk hematopoietic malignancies and a wide range of severe non-malignant diseases of the blood and immune system. The possibility of performing HSCT was significantly limited by the availability of donors compatible with the MHC system. Read more about this study

Who is it for?
Ages 1 month to 18 years
What is being tested?
boost anti-viral immunity after T-cell depleted HSCT
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteRussia
Study dates
16 Sep 2021to 1 Dec 2022
Phase
Phase 1/2
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 1 month to 18 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Informed consent signed by the patient (ages 14 to 18) and / or his legal representative (ages 0 to 18).
  • The patient has an indication for allogeneic transplantation of hematopoietic stem cells established in accordance with the current regulatory framework
  • Planned HSCT selective immunomagnetic depletion of alpha/betta T lymphocytes
  • Karnovsky or Lansky index more than 50%
  • Life expectancy at least 4 weeks
  • Heart function: ejection fraction of at least 40%
  • Consent to continue follow-up for 5 years

Who cannot join

  • Acute viral hepatitis or acute HIV infection
  • Hypoxemia with SaO2 <90%
  • Bilirubin> 3 norms
  • Creatinine> 3 norms
  • Pregnancy and lactation
  • Severe uncontrolled infection
  • Severe (>?) pathology of the central nervous system (epilepsy, dementia, organic damage to the central nervous system, psychosis)

Trial locations and contacts

1 site in 1 country.

Michail m Maschan, PD contact

+7 (495)2876570

mmaschan@yandex.ru

Russia1 site, 1 recruiting
  • Federal Research Center for pediatric hematology, oncology and immunology

    Moscow, 117997

    Michael Maschan, MD, 007 916 651 21 45, mmaschan@yandex.ru

    Recruiting

Other trials in Russia

About this study

Official title: Safety and Efficacy Study of an Ex-vivo Antigen-primed Donor Memory Lymphocyte Infusion for the Enhancement of Immunity to Viral Infections Among Recipients of Allogeneic Hematopoietic Stem Cell Transplantation on the Platform of Selective Immunomagnetic Depletion of T-lymphocytes

HSCT from an allogeneic donor is the standard therapy for high-risk hematopoietic malignancies and a wide range of severe non-malignant diseases of the blood and immune system. The possibility of performing HSCT was significantly limited by the availability of donors compatible with the MHC system. However, modern ex-vivo and in vivo technologies for depletion of T lymphocytes have made it possible to improve the outcomes of HSCT from partially compatible related (haploidentical) donors. In representative groups, it was shown that the success of HSCT from haploidentical donors is not inferior to standard procedures of HSCT from HLA-compatible unrelated donors. HSCT from haploidentical donors in children associated with the deficit of the adaptive immune response, which persists up to 6 months after HSCT and can be an increased risk of death of the patient from opportunistic infections. To solve this problem, the method of infusion of low doses of donor memory T lymphocytes was introduced. This technology is based on the possibility of adoptive transfer of memory immune response to key viral pathogens from donor to recipient. Such infusions have been shown to be safe and to accelerate the recovery of the pathogen-specific immune response. The expansion of virus-specific T lymphocytes in the recipient's body depends on exposure to the relevant antigen in vivo. Thus, in the absence of contact with the viral antigen, the adoptive transfer of memory T lymphocytes is not accompanied in vivo by the expansion of virus-specific lymphocytes and does not form a circulating pool of memory T lymphocytes, that can protect the patient from infections. Therefore the investigators assume that ex-vivo priming of donor memory lymphocytes with relevant antigens can provide optimal antigenic stimulation and may solve the problem of restoring immunological reactivity in the early stages after HSCT. Technically ex-vivo primed memory T lymphocytes will be generated by short incubation of CD45RA-depleted fraction of the graft (a product of T lymphocyte depletion) with a pool of GMP-quality peptides representing a number of key proteins of the viral pathogens. The following are proposed as targeted antigens: CMV pp65, EBV EBNA-1, EBV LMP12A, Adeno AdV5 Hexon, BKV LT, BKV VP1. An infusion of donor memory lymphocytes will be performed on the day +1 after transplantation. Parameters of the assessment will be safety and efficacy (immune response by day 60 and stability (responses by day 180).

Being tested
boost anti-viral immunity after T-cell depleted HSCT
Keywords
Hematopoietic stem cell transplantation, alpha/beta T cell depletion, CD45RA depletion, immune reconstitution, viral infections, ELISPOT
Medical subject headings
Leukemia, Myeloid, Acute, Precursor Cell Lymphoblastic Leukemia-Lymphoma, Lymphoma, Non-Hodgkin, Myelodysplastic Syndromes, Virus Diseases

What participants receive

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

  • boost anti-viral immunity after T-cell depleted HSCTBiological

    • Registration and informed consent sign
    • Screening clinical and laboratory examination, assessment of compliance with inclusion criteria
    • Survey of the recipient and potential donors
    • Donor selection
    • The study of the immune response to relevant antigens in the donor and recipient
    • Pre-transplant conditioning
    • Stimulation of the donor and apheresis of peripheral blood mononuclear cells
    • Graft processing
    • The manufacturing of cell product
    • Transplant Infusion
    • Antigen-primed memory DLI infusion
    • Inpatient care until day +30
    • Outpatient monitoring and screening
Study groups in NCT05066958
Study groupRoleWhat they receive
boost anti-viral immunity after T-cell depleted HSCTExperimentalNot described
Receives: Biological: boost anti-viral immunity after T-cell depleted HSCT

What is being measured

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

  1. acute Graft Versus Host Disease

    Cumulative risk of developing of acute Graft Versus Host Disease (aGVHD) (evaluation period is 100 days) stage II-IV

    Measured: 100 days after HSCT

  2. The proportion of patients with detectable T-cell response (IFNgamma ELISPOT) to CMV

    The proportion of patients with detectable peripheral blood T-lymphocytes specific for CMV antigens

    Measured: after HSCT by day + 30 and by day + 180

  3. The proportion of patients with detectable T-cell response (IFNgamma ELISPOT) to ADV

    The proportion of patients with detectable peripheral blood T-lymphocytes specific for ADV antigens

    Measured: after HSCT by day + 30 and by day + 180

  4. The proportion of patients with detectable T-cell response (IFNgamma ELISPOT) to EBV

    The proportion of patients with detectable peripheral blood T-lymphocytes specific for EBV antigens

    Measured: after HSCT by day + 30 and by day + 180

Secondary outcomes (4)
  1. Cumulative Incidence of developing chronic GVHD

    Cumulative Incidence of developing chronic GVHD

    Measured: after HSCT up to 2 years

  2. Cumulative Incidence of recurrence of leukemia CI of relapse

    Cumulative Incidence of recurrence of leukemia

    Measured: after HSCT up to 2 years

  3. TRM

    Cumulative Incidence of transplant-related mortality

    Measured: after HSCT up to 2 years

  4. OS

    Overall survival

    Measured: after HSCT up to 2 years

Timeline

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

  1. First posted4 Oct 2021
  2. Study start16 Sep 2021
  3. Primary completion1 Sep 2022 (estimated)
  4. Study completion1 Dec 2022 (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 1/2
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05066958
Sponsor's protocol ID
NCPHOI-2020-06
Status last verified
Sep 2021
First submitted
22 Sep 2021
Last updated
4 Oct 2021
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing boost anti-viral immunity after T-cell depleted HSCT in people with Acute Myeloid Leukemia and High Risk Acute Myeloid Leukemia, run by Federal Research Institute of Pediatric Hematology, Oncology and Immunology at 1 site in Russia.

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 7 inclusion and 7 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 4 Oct 2021. 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 Russia. 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 combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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 Michail m Maschan, PD (+7 (495)2876570, mmaschan@yandex.ru), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

acute Graft Versus Host Disease (time frame: 100 days after HSCT). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 4 Oct 2021.

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