NCT05017883

Brief Summary

This is a clinical study of ytaa05 cell injection in the treatment of patients with recurrent / refractory acute myeloid leukemia.The purpose is to evaluate the safety and preliminary efficacy of FLT3 car-t cells in patients with recurrent / refractory FLT3 positive acute myeloid leukemia.#TAA05 cell injection is a T cell targeting FLT3 chimeric antigen receptor#

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
5

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jul 2021

Longer than P75 for not_applicable

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

July 1, 2021

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

August 17, 2021

Completed
7 days until next milestone

First Posted

Study publicly available on registry

August 24, 2021

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2023

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2025

Completed
Last Updated

November 4, 2021

Status Verified

August 1, 2021

Enrollment Period

2.3 years

First QC Date

August 17, 2021

Last Update Submit

November 3, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • ORR 3 ORR 3

    3-month objective response rate

    three months after CAR-T cells infusion

Study Arms (1)

TAA05 cell injection

EXPERIMENTAL

TAA6 cell injection#Targeting FLT3 autologous chimeric antigen receptor T cells#

Drug: TAA05 cell injection

Interventions

Chimeric antigen receptor T cells (car-t) Chimeric antigen receptor T cells (car-t) is one of the most effective therapies for malignant tumors (especially hematological tumors). Like other immunotherapies, the basic principle is to use the patient's own immune cells to clear cancer cells. Chimeric antigen receptor (car) is the core component of car-t, which endows T cells with the ability to recognize tumor antigens in an independent manner,which enables car modified T cells to recognize a wider range of targets than natural T cell surface receptors (TCR). The basic design of car includes a tumor associated antigen binding region (usually derived from scFv segment of monoclonal antibody antigen binding region), transmembrane region and intracellular signal region. The selection of target antigen is a key determinant for the specificity and effectiveness of car and the safety of genetically modified T cells.

TAA05 cell injection

Eligibility Criteria

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

You may qualify if:

  • Age 18 \~ 70 years old (including boundary value), regardless of gender;
  • Acute myeloid leukemia with FLT3 positive (positive rate ≥ 30%) verified by flow cytometry or immunohistochemistry;
  • The expected survival time was more than 12 weeks;
  • ECoG score 0-2;
  • Refractory or relapse after standardized treatment;
  • Liver and kidney function and cardiopulmonary function meet the following requirements:
  • Creatinine ≤ 1.5 ULN;
  • Left ventricular ejection fraction ≥ 45%;
  • Blood oxygen saturation \> 91%;
  • Total bilirubin ≤ 1.5 × ULN; ALT and AST ≤ 2.5 × ULN;
  • Understand the test and have signed the informed consent form.

You may not qualify if:

  • Patients with graft-versus-host disease (GVHD) or requiring immunosuppressive agents;
  • Malignant tumors other than acute myeloid leukemia within 5 years before screening, except fully treated cervical carcinoma in situ, basal cell or squamous cell skin cancer, local prostate cancer after radical operation, and breast ductal carcinoma in situ after radical operation;
  • hepatitis B surface antigen (HBsAg) or hepatitis B core antibody (HBcAb) positive and peripheral blood hepatitis B virus (HBV) DNA titer detection is not within the normal reference range; Hepatitis C virus (HCV) antibody positive and hepatitis C virus (HCV) RNA positive in peripheral blood; Human immunodeficiency virus (HIV) antibody positive; Cytomegalovirus (CMV) DNA positive; Syphilis test positive;
  • Severe heart disease: including but not limited to unstable angina pectoris, myocardial infarction (within 6 months before screening), congestive heart failure (New York Heart Association \[NYHA\] classification ≥ grade III), severe arrhythmia;
  • Unstable systemic diseases judged by the researcher: including but not limited to severe liver, kidney or metabolic diseases requiring drug treatment;
  • Within 7 days before screening, there were active or uncontrollable infections requiring systemic treatment (except mild urogenital infection and upper respiratory tract infection);
  • Pregnant or lactating women, female subjects who planned pregnancy within 1 year after cell reinfusion, or male subjects whose partners planned pregnancy within 1 year after cell reinfusion;
  • Those who had received car-t therapy or other gene modified cell therapy before screening;
  • Subjects who were receiving systemic steroid treatment within 7 days before screening or who were determined by the investigator to need long-term systemic steroid treatment during treatment (except inhalation or local use);
  • Participated in other clinical studies within 3 months before screening;
  • There was evidence of central nervous system invasion during subject screening;
  • According to the judgment of the researcher, it does not conform to the situation of cell preparation;

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Anhui Provincial Hospital

Hefei, Anhui, 230000, China

RECRUITING

MeSH Terms

Conditions

Leukemia, Myeloid, Acute

Condition Hierarchy (Ancestors)

Leukemia, MyeloidLeukemiaNeoplasms by Histologic TypeNeoplasmsHematologic DiseasesHemic and Lymphatic Diseases

Study Officials

  • Xingbing Wang

    No.1, Swan Lake Road, new administrative and Cultural District, Hefei City, Anhui Province

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 17, 2021

First Posted

August 24, 2021

Study Start

July 1, 2021

Primary Completion

October 1, 2023

Study Completion

October 1, 2025

Last Updated

November 4, 2021

Record last verified: 2021-08

Locations