Alpha/Beta T Cell and CD19+ B Cell Depletion in Allogeneic Stem Cell Transplantation in Patients With Malignant Diseases

NCT ID: NCT05800210

Last Updated: 2025-06-15

Basic Information

• Recruitment Status: RECRUITING
• Clinical Phase: PHASE2
• Total Enrollment: 20 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2024-05-03
• Study Completion Date: 2027-05-31

Brief Summary

This study will assess the safety, efficacy, and feasibility of ⍺/β CD3+ T-cell and CD19+ B-cell depletion in allogeneic stem cell transplantation in patients with acute lymphocytic leukemia (ALL), acute myeloid leukemia (AML), juvenile myelomonocytic leukemia (JMML), high risk myelodysplastic syndrome (MDS), chronic myeloid leukemia (CML) and lymphoma. Subjects will receive an allogeneic stem cell transplant that has been depleted of ⍺/β CD3+ T-cells and CD19+ B-cells using the Miltenyi CliniMACS Prodigy® system.

Conditions

Acute Lymphoblastic Leukemia; Acute Myeloid Leukemia; Juvenile Myelomonocytic Leukemia; Myelodysplastic Syndromes; Chronic Myeloid Leukemia; Lymphoma, Non-Hodgkin; Lymphoma, Hodgkin

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Allogeneic stem cell transplant with ⍺/β CD3+ T-cell and CD19+ B-cell depleted graft

Group Type: EXPERIMENTAL

Miltenyi CliniMACS Prodigy ® system

Intervention Type: DEVICE

Subjects will receive an allogeneic stem cell transplant that has been depleted of ⍺/β CD3+ T-cells and CD19+ B-cells using the Miltenyi CliniMACS Prodigy® system.

Interventions

Miltenyi CliniMACS Prodigy ® system

Subjects will receive an allogeneic stem cell transplant that has been depleted of ⍺/β CD3+ T-cells and CD19+ B-cells using the Miltenyi CliniMACS Prodigy® system.

Intervention Type: DEVICE

Eligibility Criteria

Inclusion Criteria

A. Children, Adolescents, Young adults (ages 6 months to ≤39 years) with the following diseases may be eligible:

i. ALL

1. ALL high risk including one or more of the following: (t(9;22) or 11q23 chromosomal abnormality, primary induction failure (≤15% blasts at time of registration), mixed phenotype acute leukemia (MPAL), persistent MRD (≥0.01% by flow or persistent abnormal karyotype detected by cytogenetics) or hypodiploidy (≤44 chromosomes)) in first remission

2. ALL in second remission and beyond

ii. AML

1. History of AML induction/reinduction Failure (≤15% blasts at time of registration)

2. AML in CR1 with poor cytogenetics (i.e., 12p, 5a, -7, FLT3 mutation/duplication, t(9;11) and others)

3. AML with persistent minimal residual disease (MRD) in CR1(≥0.01% on flow or persistent abnormal karyotype detected by cytogenetics)

4. AML CR2 or beyond

5. AML in refractory relapse but ≤15% bone marrow leukemia blasts

6. Therapy-related AML

iii. Juvenile MyeloMonocytic Leukemia (JMML)

1. JMML in CR1 without CBL mutation

2. JMML with recurrence of disease with or without CBL mutation

3. JMML CR2 or beyond

iv. Chronic Myeloid Leukemia (CML)

1. CML in CR with regard to blast crisis

v. High Risk Myelodysplastic syndrome (MDS)

vi. Lymphoma: Hodgkin (HL) or Non-Hodgkin (NHL)

1. HL or NHL with a history of induction failure

2. HL or NHL in PR1 or PR2

3. HL or NHL in CR2 or subsequent remission

B. Subjects must not have more than one active malignancy at the time of enrollment (Subjects with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen [as determined by the treating physician and approved by the PI] may be included).

C. HLA-matched (5-6/6) sibling donor, matched (8-10/10) unrelated donor available for stem cell donation, haplo-identical related donor (at least one full haplotype must be matched).

D. Karnofsky or Lansky score ≥60% at the time of enrollment. Karnofsky scores must be used for patients >16 years of age and Lansky scores for patients ≤16 years of age.

E. Adequate organ function (within 4 weeks of initiation of preparative regimen), defined as:

i. Pulmonary: FEV1, FVC, and corrected DLCO must all be ≥ 60% of predicted by pulmonary function tests (PFTs). For children who are unable to perform for PFTs due to age, the criteria are: no evidence of dyspnea at rest and no need for supplemental oxygen.

ii. Renal: Creatinine clearance or radioisotope GFR ≥60 mL/min/1.73 m2 or a serum creatinine based on age/gender

iii. Cardiac: Shortening fraction of ≥ 27% by echocardiogram) or ejection fraction of ≥ 50% by echocardiogram or radionuclide scan (MUGA).

iv. Hepatic: SGOT (AST) or SGPT (ALT) < 5 x upper limit of normal (ULN) for age. Conjugated bilirubin < 2.5 mg/dL, unless attributable to Gilbert's Syndrome.

F. Written informed consent obtained from the subject or guardian and the subject agrees to comply with all the study-related procedures.

G. Subjects of childbearing potential (SOCBP) must be using an adequate method of contraception to avoid pregnancy throughout the study and for at least 8 weeks after the last dose of study drug to minimize the risk of pregnancy.

H. Subjects with partners of child-bearing potential must agree to use physician-approved contraceptive methods (e.g., abstinence, condoms, vasectomy) throughout the study and should avoid conceiving children for 8 weeks following the last dose of study drug.

Exclusion Criteria

A. Patients with documented uncontrolled infection

B. Patients who have received allogeneic hematopoietic stem cell transplantation within 6 months, unless being done as a boost.

C. Patients with active ≥Grade 2 aGVHD.

D. Demonstrated lack of compliance with medical care.

E. Females or males of childbearing potential who are unwilling or unable to use an acceptable method to avoid pregnancy for the entire study period and for at least 8 weeks after the last dose of study drug.

F. Females who are known to be pregnant or breastfeeding.

G. History of any other disease, metabolic dysfunction, clinical examination finding, or clinical laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of protocol therapy or that might affect the interpretation of the results of the study or that puts the subject at high risk for treatment complications, in the opinion of the treating physician.

H. Prisoners or subjects who are incarcerated, or subjects who are compulsorily detained for treatment of either a psychiatric or physical illness.

• Minimum Eligible Age: 6 Months
• Maximum Eligible Age: 39 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Florida Department of Health

OTHER_GOV

Sponsor Role: collaborator

Ocala Royal Dames for Cancer Research

UNKNOWN

Sponsor Role: collaborator

University of Florida

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Jordan Milner, MD

Role: PRINCIPAL_INVESTIGATOR

University of Florida

Locations

University of Florida

Gainesville, Florida, United States

Site Status: RECRUITING

Countries

United States

Central Contacts

Beate Greer

Role: CONTACT

bgreer01@ufl.edu

352-294-8744

Facility Contacts

Beate Greer

Role: primary

bgreer01@ufl.edu

352-294-8744

Other Identifiers

UF-PED-004

Identifier Type: -

Identifier Source: org_study_id