A Randomized Controlled, Open, Single-center Clinical Study Evaluating the Efficacy and Safety of Umbilical Cord Blood Mononuclear Cells in Patients with Refractory Immune Effector Cell-related Hemocytopenia

December 8, 2024 updated by: Kai Hu, Beijing GoBroad Hospital
The purpose of this study was to evaluate the safety and efficacy of umbilical cord blood mononuclear cell in the treatment of refractory immune effector cell-related hemocytopenia by observing the efficacy related factors and adverse reactions.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet 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.

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 (Estimated)

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.
40

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.
  • Not Applicable

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Beijing
      • Beijing, Beijing, China, 102200

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Age ≥18 years old (including boundary values), gender is not limited
  2. ECOG score 0-2 points
  3. Expected survival ≥6 months
  4. Patients who have received immune effector cell therapy (marketed CAR-T cell therapy or dual antibody therapy) (no target), have grade 3-4 hemocytopenia after treatment, and do not recover to grade 2 within 3 weeks after conventional treatment. Defined as follows:

1) The neutrophils again decreased to grade ≥3 within 1 week after G-CSF discontinuation, or 2) Unable to detach from red blood cell or platelet transfusion (infusion time less than one week requires re-infusion) (5) Understand the research protocol and sign the informed consent voluntarily

Exclusion Criteria:

  1. Patients who intend to undergo autologous hematopoietic stem cell transfusion or have undergone autologous hematopoietic stem cell transfusion
  2. Significant lack of compliance to complete the study plan (such as suffering from uncontrolled mental illness, etc.)
  3. Allergy or known allergy to any drug active ingredients, excipients, and blood products or preparations included in this study
  4. Pregnancy, breastfeeding, planning pregnancy, or unwillingness to use effective contraception as required by research
  5. There are other conditions that researchers believe are not suitable for inclusion

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: Randomized
  • Interventional Model: Parallel 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.
Active Comparator: Conventional hematopoietic recovery therapy
Conventional hematopoietic recovery therapy including but not limited to G-CSF, TPO, TPO receptor agonists, transfusions of red blood cells, platelets, etc.
Combination product: Conventional hematopoietic recovery therapy
Including but not limited to G-CSF, TPO, TPO receptor agonists, transfusions of red blood cells, platelets, etc.
Experimental: Conventional hematopoietic recovery therapy+Umbilical cord blood mononuclear cells
Umbilical cord blood mononuclear cells are obtained from umbilical cord blood by density gradient centrifugation
Combination product: Conventional hematopoietic recovery therapy
Including but not limited to G-CSF, TPO, TPO receptor agonists, transfusions of red blood cells, platelets, etc.
Biological: Umbilical cord blood mononuclear cells
Intravenous infusion of UCB-MNCs (3×10^8/ time, once a week, four times in total)

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
The recovery time of neutrophils
Time Frame: 1 year
On the first day after discontinuing G-CSF, the neutrophil count remained above 1.0 × 10^9/L for 7 consecutive days
1 year
The recovery time of platelet
Time Frame: 1 year
Starting from the second day of the most recent platelet transfusion, the first day of platelet count>50 × 10^9/L lasting for 7 days
1 year
Safety of infusion
Time Frame: 1 year
Acute allergies or infections related to umbilical cord blood mononuclear cell infusion, as well as shock and other infusion related reactions symptoms including but not limited to chills, fever, CRP, PCT, etc
1 year

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
Recovery of hemoglobin levels after infusion
Time Frame: 1 year
Hemoglobin content in blood routine examination
1 year
Immune function reconstruction indicators at 1, 3, 6, and 12 months after transfusion
Time Frame: 1, 3, 6, and 12 months
Including but not limited to CD3, CD4, CD8, CD19, etc. in lymphoid subgroups
1, 3, 6, and 12 months
Overall survival rate
Time Frame: 2 and 5 year
The proportion of participants who survived during the study period
2 and 5 year

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.
Beijing GoBroad Hospital

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 (Estimated)

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.
December 1, 2024

Primary Completion (Estimated)

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.
June 1, 2025

Study Completion (Estimated)

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.
December 1, 2025

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).
December 8, 2024

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.
December 8, 2024

First Posted (Estimated)

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.
December 11, 2024

Study Record Updates

Last Update Posted (Estimated)

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.
December 11, 2024

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.
December 8, 2024

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.
December 1, 2024

More Information

Terms related to this study

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.
  • UCB-MNCs-2024

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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