ClinicalTrials.gg
RecruitingNCT05272293Updated Aug 28, 2024

Immunotherapy With ex Vivo Expanded Haploidentical Natural Killer Cells for Children/Young Adults With AML

A Phase 1/2 interventional study of NK cell infusions in Acute Myeloid Leukemia, sponsored by Belarusian Research Center for Pediatric Oncology, Hematology and Immunology. Recruiting at 1 site in Belarus. Open to participants aged 6 Months to 30 Years. Per ClinicalTrials.gov, last updated 2024-08-28.

Sponsored by Belarusian Research Center for Pediatric Oncology, Hematology and Immunology · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2025, 11 months ago, but the record still lists the study as recruiting.
  • Registered 3 months after the study started (first participant enrolled Nov 2021, registered Feb 2022).
  • Started Nov 2021; still recruiting 5 years later.
Phase
Phase 1/2
Study type
Interventional
Enrollment
15
Allocation
Not applicable
Ages
6 Months to 30 Years
Sex
All
01

Study summary

The purpose of this study is to estimate the efficacy of immunotherapy with ex vivo expanded haploidentical NK cells for children/young adults with primary high risk or refractory AML and relapsed AML.

Read the detailed description

Immunotherapy with NK cells may improve the treatment results in AML. For better efficiency high cell doses or several infusions of NK cells are required. For this purpose, donor NK cells are expanded in the presence of feeder K562-mbIL21-41BBL cell line.

For patients with high-risk primary AML a cycle of immunotherapy includes chemotherapy (HD-ARA-C+IDA) followed by three doses of NK cells infusion.

For patients with refractory/relapsed AML a cycle of immunotherapy includes chemotherapy (FLAG - fludarabine, cytarabine, G-CSF) followed by three doses of NK cells infusion.

A 2nd cycle of therapy may be administered if a recipient continues to meet the eligibility criteria.

02

Conditions studied

  • Acute Myeloid Leukemia

Keywords

  • Natural killer cells, immunotherapy
03

In context

Leukemia, Myeloid, Acute

3,667 studies on the registry are indexed under Leukemia, Myeloid, Acute; 816 are open to participants now.

This study's planned enrollment of 15 is below the median of 40 across 3,005 interventional studies indexed under Leukemia, Myeloid, Acute.

Browse Leukemia, Myeloid, Acute studies →

Lead sponsor

Belarusian Research Center for Pediatric Oncology, Hematology and Immunology is the lead sponsor of 5 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
6 Months to 30 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Patients:

  • primary high risk AML
  • primary AML
  • relapsed AML
  • or Lansky performance scale greater or equal to 70
  • written

Donors:

  • haploidentical family donor
  • donor suitable for cell donation and apheresis according to standard criteria
  • written informed consent

Exclusion criteria

Exclusion Criteria:

Patients:

  • uncontrolled infection
  • severe hepatic dysfunction: or SCPT >=5x for age
  • positive serology for (HIV)

Donors:

  • pregnancy
  • positive serology for HIV, or C
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Karnofsky performance status (KPS)

A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.

Studies often ask for 60 or 70 and above. Your doctor gives the score.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
15 participants (estimated)

Study arms

  • Experimental
    expanded haploidentical NK cell immunotherapy

    After a cycle of chemotherapy a patient receive three intravenous infusions of expanded haploidentical NK cells.

    Biological: NK cell infusions

Interventions

  • BiologicalNK cell infusions

    Three doses of expanded haploidentical NK cells (30-100 x 10\^6 cells /kg).

06

What researchers measure

Primary outcomes

  1. Objective Response Rate (ORR) (PR+ MLFS+CRi +CR)

    The proportion of patients with complete remission (CR), CR with incomplete hematologic recovery (CRi), morphologic leukemia-free state (MLFS), and partial remission (PR) as measured by response criteria definitions for acute myeloid leukemia.

    Time frame: 30 days after every a course of NK immunotherapy

  2. Leukemia-free survival (LFS)

    Time from achievement of CR/CRi/MLFS to the time of relapse, death in remission, or last follow-up.

    Time frame: 1 year

  3. Overall survival (OS)

    The proportion of patients with overall survival

    Time frame: 1 year

Secondary outcomes

  1. Duration of persistence of infused NK cells

    Days of persistence of donor NK cells

    Time frame: 21 days after the first infusion

  2. Number of T, B, NK, activated T and NK cells after immunotherapy

    Analysis of T, B, NK, activated T and NK cells numbers (cells/microL) after NK infusions.

    Time frame: 30 days after the first infusion

07

Study locations

1 of 1 sites recruiting
  • Belarussian Research Center for Pediatric Oncology, Hematology and Immunology
    Minsk, Minsk Region 223053, Belarus
    Recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Nov 2021 (actual). Primary completion is estimated for Dec 2025, 49 months after the start.

Of 134 non-industry phase 1/2 interventional studies under Leukemia, Myeloid, Acute, half reached primary completion within 76 months of starting (the median), counting those still running; a quarter within 49 and three quarters within 110. This study's planned 49 months is below that.

Counting every sponsor, half of 226 studies reached it within 73 months; a quarter within 48 and three quarters within 106.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 28, 2022
First posted
Mar 9, 2022
StartActual
Nov 1, 2021
Primary completionEst.
Dec 2025
CompletionEst.
Jun 2026
Last update
Aug 28, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 28, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT05272293
Lead sponsor
Belarusian Research Center for Pediatric Oncology, Hematology and Immunology
Responsible party
Sponsor
First posted
Mar 9, 2022
Start date
Nov 1, 2021
Primary completion
Dec 2025 (estimated)
Completion
Jun 2026 (estimated)
Last update
Aug 28, 2024

Study contacts

Tatsiana Shman, PhD
Contact
shman@oncology.by
+375296341853
Mariya Naumovich, MD
Contact
mariyanaumovich@gmail.com
+375293563846
Olga Aleinikova, MD, Prof
principal investigator · Belarussian Research Center for Pediatric Oncology, Hematology and Immunology

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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