Expanded Access Protocol Using Alpha/Beta T and CD19+ Depleted PBSC

May 18, 2025 updated by: Timothy Olson, Children's Hospital of Philadelphia

Expanded Access Protocol Using TCR Alpha/Beta T Cell/CD19+ Depleted Donor Peripheral Stem Cells

The primary objective of this protocol is to expand access for patients who lack a fully HLA (Human leukocyte antigen) matched sibling donor, and who are candidates for allogeneic hematopoietic stem cell transplant (HSCT). These patients have a serious or immediately life-threatening disease for which HSCT is indicated. These patients are not eligible for other Children's Hospital of Philadelphia Institutional Review Board (IRB) approved protocols that utilize CliniMACs technology for T depletion.

Study Overview

Status

Status

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

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

Only 25-30% of patients who may benefit from HSCT have a matched related donor. An unrelated cord blood may not be available due to size or matching criteria, or if a reduced intensity regiment is recommended. The risk of severe graft vs. host disease (GVHD) and other complications is higher with unrelated donors, or partially matched related donors. At the Children's Hospital of Philadelphia (CHOP) there is extensive experience using mismatched unrelated donors or partially matched related donors with complete or partial T depletion to reduce the risk of severe GVHD.

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.
Expanded Access

Expanded Access Type

Expanded Access Type

Describes the category of expanded access under U.S. Food and Drug Administration (FDA) regulations. There are three types of expanded access:
  • Individual Patients: Allows a single patient, with a serious disease or condition who cannot participate in a clinical trial, access to a drug or biological product that has not been approved by the FDA. This category also includes access in an emergency situation.
  • Intermediate-size Population: Allows more than one patient (but generally fewer patients than through a Treatment IND/Protocol) access to a drug or biological product that has not been approved by the FDA. This type of expanded access is used when multiple patients with the same disease or condition seek access to a specific drug or biological product that has not been approved by the FDA.
  • Treatment IND/Protocol: Allows a large, widespread population access to a drug or biological product that has not been approved by the FDA. This type of expanded access can only be provided if the product is already being developed for marketing for the same use as the expanded access use.
  • Treatment IND/Protocol

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.
  • Name: Patricia Hankins, BSN, RN, CCRC
  • Phone Number: 215-590-5168
  • Email: hankinsp@chop.edu

Study Contact Backup

Study Locations

  • United States
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • Available
        • Children's Hospital of Philadelphia

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

1 month and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

N/A

Description

PATIENT AND DONOR ELIGIBILITY

Patients who lack an HLA matched sibling and who are candidates for allogeneic hematopoietic stem cell transplant (HSCT) but do not meet criteria for current open institutional protocols using CliniMACs device for β T/CD19+ depletion. Patients with matched related donors including matched sibling donors may also be eligible if special clinical indications are met.

Patients with the following transplantable diseases:

Non-malignant diseases:

  • Metabolic storage diseases correctable by HSCT
  • Bone marrow failure syndromes
  • Immunodeficiencies/immune dysregulation syndromes
  • Sickle cell disease or thalassemia
  • Other diseases treated with HSCT

Malignant diseases:

  • Acute leukemias
  • Chronic leukemias
  • Lymphomas
  • Myelodyplastic syndrome

Patient Eligibility criteria:

It is important to note that the conditioning prescribed to the patient will be determined based on the disease and organ status and will include agents that are standard. Appropriate combinations of chemotherapy, immunotherapy and/or radiation will be determined on an individual basis.

Patient eligibility will be assessed as per our institutional standard operating procedures:

  • Signed informed consent
  • Lansky or Karnofsky performance ≥ 60
  • Hematologic and Organ Function as per current institutional SOP
  • Infectious Evaluation as per current institutional SOP
  • Participants of childbearing potential must have a negative pregnancy test as per institutional SOP
  • Subjects with graft failure who require a second HSCT will not need to meet eligibility criteria again prior to the second transplant. Graft failure is a medical emergency that requires HSCT

Donor Eligibility Patients must have an identified living donor

  • Donor selection will comply with 21 CFR 1271*
  • Unrelated donor that meets the matching criteria of the NMDP with allele matching at HLA -A, -B, -C, -DRB1, and -DQB1: Unrelated donors may be a 10/10 match, a 9/10 match, or an 8/10 match if one of the mismatches is at DQB1.
  • Related donor mismatched at one to five HLA alleles (haploidentical)
  • Matched related donor may be considered suitable donors for this protocol if a peripheral stem cell donation is deemed by the clinical team to be a safer donation option (if donor is not a suitable candidate for a bone marrow harvest) or if there is concern that bone marrow harvest would not yield adequate cell doses Additionally, a matched related donor would be considered suitable for this protocol if there are safety concerns regarding a patient receiving a standard T cell replete bone marrow transplant due to individualized GVHD risk or risk related to standard GVHD prevention medications.
  • Donor suitable for mobilization of peripheral stem cells and apheresis and fulfills infectious disease criteria as per our institutional SOP, including HIV, HepB, HepC PCR negative.
  • We assess donor eligibility as per our Allogenic Donor Evaluation for Eligibility standard operating procedure. These procedures apply for determining donor eligibility, including donor screening and testing for relevant communicable disease agents and diseases. Our donor collection program is FACT accredited.
  • Related donors will be consented and enrolled under IRB approved research protocol for cell collection per IRB 04-004078 CHP 784 Clinical and Research Collection and Future Research Use of Bone Marrow, Stem Cells or T Cells.
  • Unrelated donor identified through the National Marrow Donor Program (NMDP) and fulfills the NMDP criteria for donation. Unrelated donor willing and able to undergo mobilization of peripheral stem cells and apheresis.
  • The donors selected for this IDE will either be unrelated donors identified through the National Marrow Donor Program (NMDP) or related donors. Regarding the unrelated donors, NMDP procedures for determining donor eligibility include donor screening and testing for relevant communicable disease agents and diseases

Exclusion criteria:

  • Uncontrolled bacterial, viral, or fungal infections
  • Fully HLA matched sibling donor (fully matched related donors including siblings may be included in special circumstances)
  • Donor unable to donate peripheral stem cells
  • Pregnant Females

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?

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 of Philadelphia

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Tim Olson, MD, PhD, Children's Hospital of Philadelphia

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 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).
May 5, 2017

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.
May 5, 2017

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.
May 9, 2017

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.
May 22, 2025

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.
May 18, 2025

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.
May 1, 2025

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.
  • 16-013527

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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