Treatment Use of the CliniMACS® CD34 TCR Alpha/Beta for Allogenic Transplant (Expanded Access Use)

• Conditions: GVH - Graft Versus Host Reaction; Transplant-Related Disorder

• Registration Number: NCT06393660
• Lead Sponsor: Victor Aquino

Brief Summary

The purpose of this IDE protocol is to provide access to TCR Alpha/Beta+/CD19+ depleted allogeneic hematopoietic stem cell (HSC) in patients who require hematopoietic stem cell transplantation.

Detailed Description

Allogeneic hematopoietic stem cell transplant (HSCT) is the only known curative therapy for a variety of non-malignant and malignant disorders1-4. Only about 25% of patients have an HLA-matched sibling and in about 16-75% (depending on ethnicity), a 10/10 HLA-matched unrelated donor can be identified. The use of mis-matched or haploidentical donors is associated with a higher risk of post-transplant mortality due to the development of severe graft versus host disease, graft failure and the development of infection due to the use of immunosuppression or T cell depletion. The protocol is designed to provide access to patients to the Clinimacs® CD34 TCR Alpha/Beta system to prepare cells for an unlabeled indication using an HLA-compatible related or unrelated donor for allogenic transplant.

Study Timeline

• Study First Submitted: 2024-04-09
• Study First Submitted QC: 2024-04-26
• Study First Posted: 2024-05-01
• Status Verified: 2024-09
• Last Update Submitted: 2024-09-25
• Last Update Posted: 2024-09-27

Recruitment & Eligibility

• Status: AVAILABLE
• Sex: All
• Target Recruitment: Not specified

Inclusion Criteria

• Age less than 18 years of age
• No available genotypically matched related donor (sibling)
• Availability of a suitable donor and graft source
• Haploidentical related mobilized peripheral blood cells
• 9/10 or 10/10 allele matched (HLA-A, -B, -C, -DRB1, -DQB1) volunteer unrelated donor mobilized peripheral blood cells

Donor Inclusion Criteria:

• Matching as described in the Recipient and Donor Suitability Criteria

• Size and vascular access appropriate by center standard for peripheral blood stem cell (PBSC) collection. Donors with inadequate peripheral access will require placement of an apheresis catheter for collection.

• Must meet appropriate screening/eligibility requirements:

  • Haploidentical matched family members: screened by center health screens and found to be eligible.
  • Unrelated donors: meet suitability criteria to donate PBSC
  • HIV negative
  • Not pregnant or lactating
  • Recipient must not have high-level donor specific anti-HLA antibodies according to institutional practices.
  • Must agree to donate PBSC
  • Must give informed consent

Recipient Suitability:

• Adequate organ functioning as demonstrated by:

• MUGA ≥ 50% or ECHO >30%
• 24-hour Creatinine Clearance or Glofil ≥ 50 ml/min or Serum Creatinine ≤2 times the upper limit of normal
• DLCO > 65% of predicted value. FEV1 >65% of predicted
• AST / ALT ≤ 2.5 and/or Bilirubin ≤ 1.5 times the upper limit of normal
• Pregnancy test negative
• HIV 1 / 2 (HIV screen) negative with a negative qualitative HIV PCR.
• HTLV I negative
• RPR or VDRL negative
• RVP (Respiratory Viral PCR) with a negative result
• Positive hepatitis testing does not make the patient ineligible. Hepatitis results will be evaluated on a case-by-case basis by the transplant physician to determine donor suitability/eligibility.

Donor Suitability:

• Allowed Donor Sources

• Fully matched sibling donors are not allowed.
• Unrelated donors. HLA typing of at least 10 alleles is required. Donor must be matched at 9/10 or 10/10 alleles (HLA-A, -B, -C, -DRB1, -DQB1). Haploidentical matched family members. Minimum match level full haploidentical (at least 5/10; HLA-A, -B, -C, -DRB1, -DQB1 alleles), but use of haploidentical donors with extra matches (e.g., 6, 7, or 8/10) encouraged.
• Cord blood is not allowed as a stem cell source on this IDE.

Recipient and Donor

Exclusion Criteria

• Pregnant or lactating females are ineligible as the risk to unborn children and infants is unknown
• Presence of life-threatening, uncontrolled opportunistic infection (fungal, bacterial, or viral infections). Patients with history of fungal disease during induction therapy may proceed if they have a significant response to antifungal therapy with no or minimal evidence of disease remaining by CT evaluation.
• HIV or HTLV I/II infection

Study & Design

• Study Type: EXPANDED_ACCESS
• Study Design: Not specified

Trial Locations

Locations (1)

Children's Medical Center - Dallas; 🇺🇸 Dallas, Texas, United States