NCT05143125

Brief Summary

Natural killer cells (NK cells) are derived from bone marrow lymphoid stem cells, which are a type of lymphocytes that can non-specifically kill tumor cells and virus-infected cells without pre-sensitization. NK cells can not only directly kill malignant diseased cells, but also participate in the regulation of immune cell response and play a role in a variety of tumor immunotherapy strategies. The 2-year survival rate of NK cells combined with stem cell therapy for patients with hematological malignancies reached 36%, which is significantly higher than the 2-year survival rate (about 15%) of stem cell therapy alone, which can extend the disease-free survival period of leukemia patients by an average of 1.5 years. Relapsed and refractory leukemia can achieve a complete remission rate of up to 40%.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
60

participants targeted

Target at P75+ for phase_1

Timeline
Completed

Started Feb 2021

Typical duration for phase_1

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 5, 2021

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

November 22, 2021

Completed
11 days until next milestone

First Posted

Study publicly available on registry

December 3, 2021

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2024

Completed
Last Updated

December 3, 2021

Status Verified

February 1, 2021

Enrollment Period

3 years

First QC Date

November 22, 2021

Last Update Submit

November 22, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • Disease-free survival

    DFS

    From date of initial treatment to the end of follow up, up to 2 years

Secondary Outcomes (1)

  • Overall survival rate

    From admission to the end of follow up, up to 2 years.

Study Arms (1)

Treatment group

EXPERIMENTAL

Decitabine combined with NK cell infusion as post-remission therapy

Biological: Decitabine combined with NK cell infusion

Interventions

Decitabine combined with NK cell infusion

Treatment group

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male or female patients aged 18-70 (including 18 and 70 years old);
  • Those who have been diagnosed as malignant tumor by pathological and histological examination, have received anti-tumor treatment and are in remission;
  • The ECOG score of the patient is less than 2 points;
  • The patient did not receive any chemotherapy, radiotherapy, immunotherapy (such as immunosuppressive drugs) and other anti-tumor treatments within 4 weeks before enrollment, and his previous treatment-related toxicity had returned to grade \<1 (hair loss, peripheral nerves) at the time of enrollment Except for low-level toxicity such as inflammation);
  • The patient's intravenous access is unobstructed, which can meet the needs of intravenous drip;
  • The patient voluntarily participates and signs an informed consent form, and follows the research treatment plan and visit plan.

You may not qualify if:

  • The patients used high-dose hormones within 1 week before enrollment (except for patients using inhaled hormones);
  • People with severe autoimmune diseases, immunodeficiency diseases or severe allergies;
  • Patients who have been treated with other cellular immune products (DC, T, CTL, CAR-T, etc.);
  • The patient had an uncontrollable infection within 4 weeks before enrollment;
  • Active B HBV DNA\>1000copy/mL/C virus hepatitis (anti-HCV positive, HCV RNA positive), HIV positive, syphilis positive;
  • The patient has participated in other clinical studies within 6 weeks before enrollment;
  • Patients suffering from mental illness;
  • The patient has drug abuse/addiction and medical, psychological or social conditions that may interfere with research or have an impact on the evaluation of research results;
  • The patient has alcohol dependence;
  • Women who are pregnant (positive urine/blood pregnancy studies) or breastfeeding; men or women who have a pregnancy plan within the past year; patients cannot be guaranteed to take effective contraceptive measures during the study period;
  • According to the judgment of the investigator, the patient has other conditions that are not suitable for enrollment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Shenzhen University General hospital

Shenzhen, Guangdong, 518055, China

RECRUITING

MeSH Terms

Conditions

Neoplasms

Study Officials

  • Li Yu, Dr

    Shenzhen University General Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

November 22, 2021

First Posted

December 3, 2021

Study Start

February 5, 2021

Primary Completion

February 1, 2024

Study Completion

February 1, 2024

Last Updated

December 3, 2021

Record last verified: 2021-02

Data Sharing

IPD Sharing
Will not share

Locations