TCRαβ+/CD19+ Depleted Allogeneic Hematopoietic Stem Cell Transplantation for Malignant and Non-malignant Disorders

August 16, 2023 updated by: Children's Hospital Medical Center, Cincinnati

Safety and Efficacy of TCRαβ+/CD19+ Depleted Allogeneic Hematopoietic Stem Cell Transplantation for Malignant and Non-malignant Disorders in Children and Adolescent/Young Adult Patients

The purpose of this study is to investigate the safety and efficacy of TCRαβ+/CD19+ depleted allogeneic hematopoietic stem cell transplant (HSCT) for malignant and non-malignant disorders in children and adolescent/young adult patients using the CliniMACS® immunomagnetic selection device (Miltenyi Biotec).

Study Overview

Status

Status

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

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

Acute graft versus host disease (GVHD) remains a significant cause of morbidity and mortality and is the biggest barrier to successful allogeneic hematopoietic cell transplantation (HSCT) outcomes. Improved methods of acute GVHD prevention are needed. TCRαβ+/CD19+ depletion of allogeneic hematopoietic stem cell products offers an opportunity to limit the risk of acute GVHD by removing TCRαβ+ T cells and CD19+ B cells which participate in acute GVHD initiation and perpetuation. The purpose of this study is to investigate the safety and efficacy of TCRαβ+/CD19+ depleted allogeneic hematopoietic stem cell transplant (HSCT) for malignant and non-malignant disorders in children and adolescent/young adult patients using the CliniMACS® immunomagnetic selection device (Miltenyi Biotec).

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 (Actual)

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.
15

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

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

  • United States
    • Ohio
      • Cincinnati, Ohio, United States, 45229
        • Cincinnati Children's Hospital Medical Center

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Any patient being treated at Cincinnati Children's Hospital requiring an allogeneic HSCT who lacks an HLA-genotypically matched related donor. Genotypically matched related donors are allowed when there is a clinical desire to avoid the use of GVHD prophylaxis medications.

Exclusion Criteria:

  • Prior allogeneic transplant with active acute or chronic GVHD, or life-threatening infection. Patients with a prior history of allogenic transplant without active GVHD or life-threatening infection can be considered.

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: TCRαβ+/CD19+ depleted HSCT
Drug: TCRαβ+/CD19+ depleted allogeneic hematopoietic stem cell transplant (HSCT)
The majority of TCRαβ+ T cells and CD19+ B cells will be removed from the allogeneic graft utilizing the CliniMACS® immunomagnetic selection device (Miltenyi Biotec). The depletion process involves two phases; cell labeling (phase 1) and the automated immunomagnetic depletion process (phase 2). The CD34+ dose may be adjusted by the need to not exceed the TCRαβ+CD3+ dose threshold.

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
Incidence of Infusion-related Reactions
Time Frame: 100 days
Number of patients who experienced infusion reactions including rash, fever, difficulty breathing, and blood pressure abnormalities at the time of infusion of stem cells.
100 days

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
Engraftment and Sustained Donor Chimerism
Time Frame: 28 days and 1 year
Initial neutrophil engraftment prior to day +28 was determined by monitoring for neutrophil count recovery post-transplant and performing blood tests to confirm presence of donor cells. Sustained donor chimerism at 1 year post transplant was determined again by performing blood tests to confirm presence of donor cells.
28 days and 1 year
Number of Participants With Acute GVHD
Time Frame: 100 days
Patients were monitored for symptoms of acute graft versus host disease including rash, diarrhea, and increased bilirubin using the Modified Glucksberg Criteria.
100 days
Number of Participants With Chronic GVHD
Time Frame: 1 year
Patients were monitored for symptoms of chronic graft versus host disease using the NIH Consensus Criteria.
1 year
GVHD-free Survival
Time Frame: 1 year
GVHD-free survival was determined based on the presence or not of acute or chronic GVHD at 1 year.
1 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.
Children's Hospital Medical Center, Cincinnati

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 16, 2019

Primary Completion (Actual)

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.
May 14, 2021

Study Completion (Actual)

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.
September 3, 2021

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).
September 12, 2019

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.
September 12, 2019

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.
September 13, 2019

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.
September 8, 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.
August 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.
August 1, 2023

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.
  • 2018-8568

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

Yes

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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