Safety of Expanded Haploidentical Natural Killer Cells for Leukemia

February 28, 2022 updated by: Belarusian Research Center for Pediatric Oncology, Hematology and Immunology

Pilot Study of Immunotherapy With ex Vivo Expanded Haploidentical Natural Killer Cells for Leukemia

The purpose of this study is to estimate the safety of ex vivo expanded haploidentical natural killer (NK) cells for patients with leukemia.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Immunotherapy with natural killer (NK) cells may improve the results of treatment for patients with cancer. However, for better efficiency high doses of NK cells are required. For this purpose, NK cells were expanded in the presence of feeder K562 cells gene-modified for expression 4-1BBL and membrane bound IL-21. In the result of expansion, large number of activated NK cells are obtained.

Protocol of immunotherapy includes conditioning (fludarabine + cyclophosphamide or any other protocol of chemotherapy) followed by expanded NK cells intravenous infusion. To sustain proliferation of donor NK cells in vivo patients receive 6 doses of Il-2 every second day. 10 patients will be enrolled in phase I to test different doses of NK cells: 20, 50, 70, 100 and >100 x 10^6/kg.

Study Type

Interventional

Enrollment (Actual)

10

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Belarus
    • Minsk Region
      • Minsk, Minsk Region, Belarus, 223053
        • Belarussian Research Center for Pediatric Oncology, Hematology and Immunology

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

1 year to 30 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

Patients:

  • Relapsed acute myeloid or lymphoblastic leukemia
  • Primary refractory myeloid or lymphoblastic leukemia
  • Karnofsky or Lansky performance scale greater or equal to 70
  • Written informed consent

Donor:

  • Haploidentical family donor
  • > 18 years old
  • Donor suitable for cell donation and apheresis according to standard criteria
  • Written informed consent

Exclusion Criteria:

Patients:

  • Uncontrolled infection
  • Severe hepatic dysfunction: SGOT or SCPT >=5x upper limit of normal for age
  • Positive serology for human immunodeficiency virus (HIV)

Donors:

  • Pregnancy or breast feeding
  • Positive serology for HIV, hepatitis B or C.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: NK cells + IL-2
After cycle of chemotherapy patient receive one intravenous infusion of expanded haploidentical NK cells on day 0. On alternate days, 6 doses of subcutaneous IL-2 is administered with start on day -1.
Biological: Expanded Haploidentical Natural Killer cells
One dose (from 20x to >100x 10^6 /kg) of expanded haploidentical NK cells
Drug: IL-2
6 doses of IL-2 (1 × 10^6 units/m2) from -1 day every other day.
Other Names:
  • Ronkoleukinum

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence of Treatment-Emergent Adverse Events
Time Frame: 1 months
Adverse events will be graded according to the CTCAE v4.0
1 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Days of persistence of adoptively-transferred haploidentical NK cells
Time Frame: 1 months
Analysis of donor chimerism at +2, 6, 10, 14, 21, 28 days after NK infusion.
1 months
Occurrence of disease response
Time Frame: 1 months post infusion
Analysis of blast cells content in bone marrow by cytomorphology or detection of MRD level by flow/PCR before and after immunotherapy.
1 months post infusion
Median time to leukocytes and platelets recovery
Time Frame: 2 months post infusion
Days of platelets (>50x10^9/L) and leukocytes (>1x10^9/L) recovery.
2 months post infusion
Number of T, B, NK, activated T and NK cells after immunotherapy
Time Frame: 1 months post infusion
Analysis of T, B, NK, activated T and NK cells numbers (cells/microL) at +2, 6, 10, 14, 21, 28 days after NK infusion.
1 months post infusion

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Belarusian Research Center for Pediatric Oncology, Hematology and Immunology

Investigators

  • Principal Investigator: Olga Aleinikova, Belarussian Research Center for Pediatric Oncology, Hematology and Immunology

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 2, 2019

Primary Completion (Actual)

June 6, 2021

Study Completion (Actual)

June 30, 2021

Study Registration Dates

First Submitted

March 18, 2020

First Submitted That Met QC Criteria

March 27, 2020

First Posted (Actual)

March 30, 2020

Study Record Updates

Last Update Posted (Actual)

March 2, 2022

Last Update Submitted That Met QC Criteria

February 28, 2022

Last Verified

February 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • BelarusianPediatric_NK_Pilot

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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