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A Study of CD45RA+ Depleted Haploidentical Stem Cell Transplantation in Children With Relapsed or Refractory Solid Tumors and Lymphomas

A Phase I Study of CD45RA+ Depleted Haploidentical Stem Cell Transplantation in Children With Relapsed or Refractory Solid Tumors and Lymphomas

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01625351
Enrollment
23
Registered
2012-06-21
Start date
2012-08-20
Completion date
2020-02-10
Last updated
2026-02-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Clear Cell Carcinoma, Ewing Sarcoma, Gastrointestinal Tumor, Germ Cell Tumor, Hepatic Tumor, Lymphoma, Melanoma, Neuroblastoma, Non-rhabdomyosarcoma, Renal Cell Carcinoma, Rhabdoid Tumor, Rhabdomyosarcoma, Wilms Tumor

Brief summary

This is a phase I study designed to determine the feasibility of transplantation using a novel transplant approach that employs a two-stage haploidentical cell infusion following myeloablative conditioning. This strategy, which includes selective depletion of naïve T cells, may speed immune reconstitution thereby potentially reducing the limitations of traditional haploidentical hematopoietic stem cell transplantation (HSCT) and increasing its potential therapeutic application. Additionally, the investigators intend to explore overall survival, event-free survival, hematopoietic cell recovery and engraftment as well as infection rates and complications in these patients.

Detailed description

Twelve participants and 12 donors will be enrolled on this study. Donors will undergo seven days of hematopoietic stem cell (HSC) mobilization followed by two apheresis collections. Each apheresis collection will be processed by the CliniMACS system. DONORS: A mobilization regimen of granulocyte colony stimulating factor (G-CSF) will be used to obtain a peripheral blood stem cell (PBSC) product from the donor. Apheresis will be performed for a minimum of two consecutive days, including one day for each cell product delivered. STUDY PARTICIPANTS: Participants will undergo a two-stage haploidentical cell infusion following myeloablative conditioning. The first cell infusion will be a CD3-depleted product and the second infusion will be a CD45RA-depleted product. Primary Objective: * To determine the feasibility of haploidentical HSCT using two infusions engineered by negative selection on the Miltenyi CliniMACS system- the first by selective depletion of CD3+ cells, followed by a second depleted of CD45RA+ cells, in children with relapsed or refractory solid tumors or lymphomas. Secondary Objectives: * To estimate hematopoietic cell recovery and engraftment rates for the patients. * To estimate infection rates and complications. * To estimate the one-year overall survival (OS) and event-free survival (EFS) for the study patients.

Interventions

DRUGalemtuzumab

Patients receive alemtuzumab on days -14 through -12 (Day 0 = stem cell transplantation).

DRUGfludarabine

Patients receive fludarabine phosphate on days -11 through -7. (Day 0 = stem cell transplantation.)

DRUGsirolimus

Patients receive sirolimus beginning on day -1 with taper beginning on day 90. (Day 0 = stem cell transplantation.) Participants treated after activation of protocol revision 2.3 on 06/05/2014 have not and will not receive sirolimus as part of their therapy.

DRUGBusulfan

Patients receive busulfan on days -6 through -3. (Day 0 = stem cell transplantation.)

DRUGmelphalan

Patients receive melphalan on days -2 and -1. (Day 0 = stem cell transplantation.)

BIOLOGICALstem cells

Patients undergo CD3 depleted haploidentical hematopoietic stem cell transplant (HSCT) on day 0. Patients also undergo CD45RA depleted HSCT infusion on day 1. (Day 0 = stem cell transplantation.)

DEVICECliniMACS

The mechanism of action of the CliniMACS Cell Selection System is based on magnetic-activated cell sorting (MACS). The CliniMACS device is a powerful tool for the isolation of many cell types from heterogeneous cell mixtures, (e.g. apheresis products). These can then be separated in a magnetic field using an immunomagnetic label specific for the cell type of interest, such as CD3+ human T cells.

Sponsors

St. Jude Children's Research Hospital
Lead SponsorOTHER
CURE Childhood Cancer, Inc.
CollaboratorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
2 Years to 21 Years
Healthy volunteers
No

Inclusion criteria

- Transplant Recipients: * At least 2 years of age and less than or equal to 21 years of age. * Histologically confirmed solid tumor or lymphoma at original diagnosis: * Ewing Sarcoma Family of Tumors (ESFT) * Gastrointestinal tumors * Germ Cell tumors * Hepatic tumors (including hepatocellular carcinoma and hepatoblastoma) * Lymphoma (including Hodgkin and non-Hodgkin lymphoma) * Kidney tumors (including Wilms tumor, rhabdoid tumors, clear cell carcinoma, and renal cell carcinoma) * Melanoma * Neuroblastoma * Soft tissue sarcoma (including rhabdomyosarcoma and non-rhabdomyosarcoma soft tissue sarcoma) * Malignancy has no reasonable expectation of cure with available alternative salvage therapy. * Has a suitable human leukocyte antigen (HLA) haploidentical donor available. * At least two weeks since receipt of any biological therapy, chemotherapy, and/or radiation therapy. * Has recovered from all acute NCI Common Toxicity Criteria grade II-IV acute non-hematologic toxicities from prior therapy per the judgment of the PI. * Shortening fraction greater than or equal to 25%. * Creatinine clearance or glomerular filtration rate (GFR) greater than or equal to 50 mL/min/1.73 m2. * Pulse oximetry greater than or equal to 92% on room air * Alanine aminotransferase (ALT) and aspartate transaminase (AST) less than or equal to3 times the upper limit of the institution-established normal range. * Direct bilirubin less than or equal to 3.0 mg/dL. * Karnofsky or Lansky performance score of greater than or equal to 50.

Exclusion criteria

- Transplant Recipients: * Newly diagnosed patients with no prior attempt at curative therapy. * Any primary or active central nervous system (CNS) malignancy, including metastatic disease. * Any active or prior malignant or pre-malignant condition of the bone marrow, excluding metastasis of the primary malignancy. * Prior allogeneic hematopoietic stem cell transplant. * Prior autologous stem cell transplant within previous 3 months. * Allergy to murine products or positive human anti-mouse antibody (HAMA). * (Female only) Known pregnancy (negative serum or urine pregnancy test to be conducted within 7 days prior to enrollment). * (Female only) Breast feeding. Inclusion Criteria - Donors: * At least 18 years of age. * Partially HLA matched family member. * Human immunodeficiency virus (HIV) negative.

Design outcomes

Primary

MeasureTime frameDescription
Feasibility of haploidentical HSCT30 days post transplantationFeasibility is defined as engraftment (ANC≥ 500/mm3 for 3 consecutive tests performed on different days) evaluated before day +30.

Secondary

MeasureTime frameDescription
hematopoietic cell recovery and engraftment rates30 days post transplantationThey will be reported and presented descriptively. Specifically, the hematopoietic cell recovery and engraftment rates will be reported with a Blyth-Still-Casella 95% confidence interval.
infection rates and complicationsup to 5 yearsThe proportion of patients who develop infections and complications will be estimated and a Blyth-Still-Casella 95% confidence interval will be provided.
overall survival (OS)up to 1 year after transplantationDefined based on any death. The Kaplan-Meier Estimate will be provided.
event-free survivalup to 1 year after transplantationThe Kaplan-Meier Estimate will be provided.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORBrando Triplett, MD

St. Jude Children's Research Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 7, 2026