CD123-Targeted CAR-T Cell Therapy for Relapsed/Refractory Acute Myeloid Leukemia

April 16, 2023 updated by: Chongqing Precision Biotech Co., Ltd
There are limited options for treatment of relapse/refractory acute myeloid leukemia (AML). CD123 CAR-T cells may have an attractive and permanent effect on anti-tumor. This study purpose to estimate the safety and efficiency of CD123 CAR-T cells to patients with relapse/refractory AML.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

CD123 is expressed on most myeloid leukemia cells so it is a ideal target for CAR-T. Some researches have revealed that CD123 is a marker of leukemia stem cells, which indicates that the eradication of CD123 cells may prevent relapse of leukemia. In this study, investigators will evaluate the safety and efficacy of CAR-T targeting CD123 in patients with Acute Myelocytic Leukemia. The primary goal is safety and efficiency assessment, including adverse events and disease status after treatment.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
45

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • 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

  • China
    • Yunnan
      • Kunming, Yunnan, China
        • Recruiting
        • 920th Hospital of Joint Logistics Support Force

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

2 years to 75 years (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Signed written informed consent；

  2. Diagnose as Relapsed/Refractory AML, and meet one of the following conditions：

    1. With persistent disease after at least two lines of therapy；
    2. Relapse to the last line of therapy in 6 months，as known as early recurrence;
    3. Relapse to the last line of therapy after 6 months, but refractory to this last line of therapy；
    4. Relapse more than once. The definition of relapse: Reappearance of blasts in the blood or bone marrow (>5%) or in any extramedullary site after a CR (the most common are CNS and testicular leukemia).
  3. Evidence for cell membrane CD123 expression;
  4. KPS>60;
  5. The expect time of survive is above 3 months;
  6. Ages: 2 to 75 years;
  7. All genders;
  8. The patients that diagnosis as high risks, relapse/refractory or inconformity criteria to other therapy；
  9. No serious mental disorders;
  10. Left ventricular ejection fraction ≥40%;
  11. Sufficient hepatic function defined by ALT/AST<5 x ULN and bilirubin≤34.2μmol/L;
  12. Sufficient renal function defined by creatinine clearance <220μmol/L;
  13. Sufficient pulmonary function defined by indoor oxygen saturation≥92%;
  14. No other illness may conflict with the protocol (e.g. autoimmune diseases, immune deficiency and organ transplantation；
  15. Ability and willingness to adhere to the study visit schedule and all protocol requirements.

Exclusion Criteria:

  1. Previous history of other malignancy;
  2. Presence of uncontrolled active infection;
  3. Evidence of disorder that need the treatment by glucocorticoids;
  4. Active or chronic GVHD；
  5. The patients treatment by inhibitor of T cell；
  6. Pregnant or breasting-feeding women;
  7. Any situation that investigators regard not suitable for attending in this study (e.g. HIV , HCVinfection or intravenous drug addiction) or may affect the data analysis.

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

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: CD123 CAR-T cells treat
Patients will be be treated with CD123 CAR-T cells
Biological: CD123 CAR-T cells
CD123 CAR-T cell therapy

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Adverse events that related to treatment
Time Frame: 2 years
Therapy-related adverse events will be recorded and assessed according to the National Cancer Institute's Common Terminology Criteria for Adverse Events (CTCAE, Version 5.0).
2 years
The response rate of CD123 CAR-T treatment in patients with relapse/refractory AML that treatment by CD123 CAR-T cells therapy
Time Frame: 2 years
The response rate of CD123 CAR-T treatment will be recorded and assessed according to the National Comprehensive Cancer Network Guideline.
2 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Cellular kinetics of CD123 CAR-T in Blood
Time Frame: 2 years
In vivo (peripheral blood) rate and quantity of CD123 CAR-T cells were determined by means of flow cytometry and qPCR
2 years
Cellular kinetics of CD123 CAR-T in Bone marrow
Time Frame: 2 years
In vivo (bone marrow) rate and quantity of CD123 CAR-T cells were determined by means of flow cytometry and qPCR
2 years
Cellular kinetics of CD123 positive cells in Bone marrow
Time Frame: 1 years
In vivo (bone marrow) rate and quantity of CD123 positive cells were determined by means of flow cytometry
1 years
Duration of Response (DOR) of CD123 CAR-T treatment in patients with refractory/relapsed AML
Time Frame: 2 years
DOR will be assessed from the first assessment of CR or CRi to the first assessment of recurrence or progression of the disease or death from any cause (censored)
2 years
Progress-free survival(PFS) of CD123 CAR-T treatment in patients with refractory/relapsed AML
Time Frame: 2 years
PFS will be assessed from the first CAR-T cell infusion to death from any cause or the first assessment of progression (censored)
2 years
Overall survival(OS) of CD123 CAR-T treatment in patients with refractory/relapsed AML
Time Frame: 2 years
OS will be assessed from the first CAR-T cell infusion to death from any cause (censored)
2 years

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Chongqing Precision Biotech Co., Ltd

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 1, 2019

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2023

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 31, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 9, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 12, 2020

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 18, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 16, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • PBC011

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.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings