Allogeneic Hematopoietic Cell Transplantation for Disorders of T-cell Proliferation and/or Dysregulation
Phase II Trial of Allogeneic Hematopoietic Cell Transplantation for Disorders of T-cell Proliferation and/or Dysregulation
2 other identifiers
interventional
71
1 country
2
Brief Summary
Background: Blood stem cells in the bone marrow make all the cells to normally defend a body against disease. Allogeneic blood or marrow transplant is when these stem cells are transferred from one person to another. Researchers think this treatment can provide a new, healthy immune system to correct T-cell problems in some people. Objective: To see if allogeneic blood or bone marrow transplant is safe and effective in treating people with T-cell problems. Eligibility: Donors: Healthy people ages 4 and older Recipients: People the same age with abnormal T-cell function causing health problems Design: All participants will be screened with:
- Medical history
- Physical exam
- Blood, heart, and urine tests Donors will also have an electrocardiogram and chest x-ray. They may have veins tested or a pre-anesthesia test. Recipients will also have lung tests. Some participants will have scans and/or bone marrow collected by needle in the hip bones. Donors will learn about medicines and activities to avoid and repeat some screening tests. Some donors will stay in the hospital overnight and have bone marrow collected with anesthesia. Other donors will get shots for several days to stimulate cells. They will have blood removed by plastic tube (IV) in an arm vein. A machine will remove stem cells and return the rest of the blood to the other arm. Recipients will have:
- More bone marrow and a small fragment of bone removed
- Dental, diet, and social worker consultations
- Scans
- Chemotherapy and antibody therapy for 2 weeks
- Catheter inserted in a chest or neck vein to receive donor stem cells
- A hospital stay for several weeks with more medicines and procedures
- Multiple follow-up visits
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started Sep 2018
Longer than P75 for phase_2
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 4, 2018
CompletedFirst Submitted
Initial submission to the registry
September 7, 2018
CompletedFirst Posted
Study publicly available on registry
September 10, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 3, 2025
CompletedResults Posted
Study results publicly available
March 17, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
April 3, 2030
ExpectedMarch 17, 2026
February 1, 2026
6.6 years
September 7, 2018
January 22, 2026
February 26, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Percentage of Recipients Who Are Alive With >50% Donor T Cell Chimerism and Graft-failure Free at 180 Days Post Hematopoietic Cell Transplant (HCT) Reported With an 80% Confidence Interval
Percentage of recipients with \> 50% donor T cell chimerism and without death or graft failure. A graft failure event is defined as either primary or secondary graft failure, in the absence of a recurrent marrow malignancy.
Day +180 post-HCT
Percentage of Recipients Who Are Alive With >50% Donor T Cell Chimerism and Graft-failure Free at 180 Days Post Hematopoietic Cell Transplant (HCT) Reported With a 95% Confidence Interval
Percentage of recipients with \> 50% donor T cell chimerism and without death or graft failure. A graft failure event is defined as either primary or secondary graft failure, in the absence of a recurrent marrow malignancy.
Day +180 post -HCT
Secondary Outcomes (16)
Cumulative Incidence of Transplant-related Mortality
Day +180, and 1-year post-transplant
Cumulative Incidence of Secondary Graft Failure
1-, 3-, and 5-years post-transplant
Percent Probability of Overall Survival (OS)
1-, 3-, and 5-years post-transplant
Percentage of Participants Who Achieve Chimerism at Stated Days Between Those Who Have Failed by Day 60 or Have Not
Day +21, +28, +35, +42, and +60 after hematopoietic cell transplant (HCT)
Percentage of Donor T-cell Populations at Days +28, +42, +60, +100, +180, and 1-year Post Hematopoietic Cell Transplant (HCT)
Days +28, +42, +60, +100, +180, and 1-year post hematopoietic cell transplant
- +11 more secondary outcomes
Other Outcomes (1)
Number of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v5.0)
Conditioning start until return to baseline/stabilization, 30 days post-therapy end, removal from therapy, or off study, whichever comes first for all AEs, followed by AE collection per principal investigator discretion, on average 2 years.
Study Arms (3)
Arm 1/Reduced-Intensity Conditioning (RIC)
EXPERIMENTALReduced Intensity Conditioning Arm.
Arm 2/Immunosuppression-only Conditioning (IOC)
EXPERIMENTALImmunosuppression Only Conditioning Arm.
Arm 3/Donor
NO INTERVENTIONHealthy Donor- Donors for recipients in arm 1 or arm 2.
Interventions
Equine anti-thymocyte globulin (e-ATG) 40 mg/kg intravenous (IV) once daily for days -14 and -13. Prednisone: Tapering doses, given orally daily, and given prior to each daily dose of e-ATG on days -14 and -13, Pentostatin:4 mg/m\^2/day IV on days -11 and -7, cyclophosphamide: 5 mg/kg orally daily on days -11 through -4, Busulfan IV, pharmacokinetically dosed, on days -3 and -2.
Screening ≤4 weeks pretreatment (rx), Day +180 (≤ 14 days), Day +36 (± 21 days), Day +548 (18 months) (± 28 days), and at 2 years and yearly thereafter through +5 years (± 56 days).
Baseline, Day +60 (± 3 days) and Day +365 (±21 days).
Baseline
Screening ≤4 weeks pretreatment (rx), Day +180 (≤ 14 days), Day +36 (± 21 days), Day +548 (18 months) (± 28 days), and at 2 years and yearly thereafter through +5 years (± 56 days).
During Immunosuppression Only Conditioning (IOC) and Reduced Intensity Conditioning (RIC).
Equine anti-thymocyte globulin (e-ATG) 40 mg/kg intravenous (IV) once daily for days -14 and -13. Prednisone: Tapering doses, given orally daily, and given prior to each daily dose of e-ATG on days -14 and -13, Pentostatin:4 mg/m\^2/day IV on days -9 and -5, cyclophosphamide:5 mg/kg orally daily on days -9 through -2.
High-dose, post-transplantation cyclophosphamide (PTCy) 25-50 mg/kg on days +3 and +4, Mesna: 25-50 mg/kg weight-based dosing, Tacrolimus 0.02 mg/kg on days +5 through +90, and mycophenolate mofetil (MMF) 15 mg/kg on days +5 through +25.
Stem cell transplant
During Reduced Intensity Conditioning (RIC).
During Immunosuppression Only Conditioning (IOC) and Reduced Intensity Conditioning (RIC).
During Immunosuppression Only Conditioning (IOC), Reduced Intensity Conditioning (RIC) and Graft-versus-host disease prophylaxis (GVHD).
During Graft-versus-host disease prophylaxis (GVHD).
During Graft-versus-host disease prophylaxis (GVHD).
During Graft-versus-host disease prophylaxis (GVHD).
During Immunosuppression Only Conditioning (IOC) and Reduced Intensity Conditioning (RIC).
Baseline, Day +365 (± 21 days), at 2 years and yearly thereafter through +5 years (± 56 days), and as clinically indicated after hematopoietic cell transplant (HCT).
Eligibility Criteria
You may qualify if:
- Age \>= 4 years
- T-cell proliferation and/or dysregulation (TCP/D) deemed to be of sufficient past severity to warrant hematopoietic cell transplantation (HCT) that meets at least one of the criteria below:
- Identified germline T-cell activating mutation in the phosphoinositide 3-kinase (PI3k) pathway
- Identified adenosine deaminase 2 (ADA2) deficiency (biallelic mutations in CECR1 (ADA2) and/or phenotypically with low ADA2 level) leading to neutropenia requiring chronic granulocyte colony-stimulating factor (GCSF) therapy or to transfusion-dependent anemia or thrombocytopenia
- T-cell infiltration of liver, spleen, lymph nodes, marrow, lungs, gut, or other organs by T cells, as evidenced by laboratory, radiographic, and/or anatomic pathology evaluation, resulting in organ dysfunction and/or organomegaly
- Latent herpesvirus infection in T lymphocytes
- History of or active evidence of hemophagocytic lymphohistiocytosis (HLH)
- Recurrent or prolonged fevers attributed to immune dysregulation
- T-cell population in blood and/or marrow with immunophenotype of large granular lymphocytes (LGL), with or without clonality or lymphocytosis
- T-cell lymphoproliferative disorder in the setting of an underlying immune defect
- Immune-mediated cytopenias of one lineage requiring transfusion or GCSF support or of 2 or 3 lineages with or without transfusion or support
- Chronic active Epstein-Barr virus (EBV)
- At least one potential 7-8/8 human leukocyte antigen (HLA)-matched related (excluding an identical twin) or unrelated donor (at HLA-A, -B, -C, and -DR), or an HLA-haploidentical related donor, based on initial low resolution unrelated donor search and/or at least one biologically- related family member who has at least a 25% chance of being at minimum an HLA- haploidentical match and is potentially suitable to donate based on reported family history. HLA typing of potential donors and/or mutation testing does not need to be completed for eligibility.
- Adequate end-organ function, as measured by:
- Left ventricular ejection fraction (LVEF) greater than or equal to 40% by 2-dimensional (2D) echocardiogram (ECHO) or left ventricular shortening fraction greater than or equal to 20% by ECHO for subjects receiving reduced-intensity conditioning (RIC), or LVEF greater than or equal to 30% if the subject has radiologic evidence of aortic, renal, or coronary artery vasculitis. LVEF greater than or equal to 30% for subjects receiving immunosuppression-only conditioning (IOC).
- +7 more criteria
You may not qualify if:
- Subjects who are receiving any other investigational agents, with the exception of virus- specific cytotoxic T-cells for the treatment of viral infection/reactivation prior to allo HCT.
- Prohibitive allergy to a study drug or to compounds of similar chemical or biologic composition of the agents (equine anti-thymocyte globulin (e-ATG), steroids, cyclophosphamide, busulfan, pentostatin, tacrolimus, mycophenolate mofetil (MMF), G-CSF) used in the study.
- Active psychiatric disorder which is deemed by the PI to have significant risk of compromising compliance with the transplant protocol, or which does not allow for appropriate informed consent
- Human immunodeficiency virus (HIV) positive or other acquired immunodeficiency that, as determined by the PI, interferes with the assessment of TCP/D severity and/or the attribution of clinical manifestations of immunodeficiency to a disorder of TCP/D.
- Magnesium Transporter 1 (MagT1) mutation and active need to take anti-platelet agents and/or therapeutic anti- coagulation that cannot be interrupted during aplasia
- Lack of adequate central venous access potential
- Age greater than or equal to 4 years
- Related donor deemed suitable and eligible, and willing to donate, per clinical evaluations who are additionally willing to donate blood, urine, and marrow specimens for research. Related donors will be evaluated in accordance with existing Standard Policies and Procedures for determination of eligibility and suitability for clinical donation. Note that participation in this study is offered to all related donors, but is not required for clinical donation, so it is possible that not all related donors will enroll onto this study.
- None
- Unrelated donors will be evaluated in accordance with existing National Marrow Donor Program (NMDP) Standard Policies and Procedures, available at: http://bethematch.org/About-Us/Global- transplant-network/Standards/, except for the additional requirement of EBV serostatus testing for clinical purposes of donor selection. Note that participation in this study is offered to all unrelated donors but not required for clinical donation, so it is possible that not all unrelated donors will enroll on this study. Unrelated donors only enroll if they contribute research specimens, which is optional.
- Unrelated donors: failure to qualify as a National Marrow Donor Program (NMDP) donor per current NMDP Standards, available at: http://bethematch.org/About-Us/Global-transplant-network/Standards/. Exceptions to donor eligibility (e.g. foreign travel, tattoos) do not automatically exclude the donor and will be reviewed by the PI.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
National Institutes of Health Clinical Center
Bethesda, Maryland, 20892, United States
National Marrow Donor Program
Minneapolis, Minnesota, 55401, United States
Related Publications (9)
Dimitrova D, et al. BK virus-associated hemorrhagic cystitis in posttransplant cyclophosphamide-based allogeneic hematopoietic cell transplantation (HCT) for immune deficiency or dysregulation. The 50th Annual Meeting of the European Society for Blood and Marrow Transplantation; Glasgow, United Kingdom; April 16, 2024.
BACKGROUNDCusmano A, Soldatos A, Notarangelo L, Grimes A, Makkeyah S, Selim L, Kanakry J, Dimitrova D. Allogeneic hematopoietic cell transplantation (HCT) in two pediatric patients with central nervous system-restricted familial hemophagocytic lymphohistiocytosis. The 50th Annual Meeting of the European Society for Blood and Marrow Transplantation; Glasgow, United Kingdom; April 15, 2024. (presenting and senior author)
BACKGROUNDCusmano A, Maher J, Gomez-Lobo V, Freeman A, Uzel G, Kanakry JA, Dimitrova D. Ovarian function following reduced intensity conditioning (RIC) allogeneic hematopoietic cell transplantation (HCT): how fertile is the future? Transplantation and Cellular Therapy Meetings of ASTCT and CIBMTR; San Antonio, TX; February 22, 2024. (presenting and senior author)
BACKGROUNDDimitrova D, et al. Pre-Transplant Anti-CD20 Monoclonal Antibody Therapy Affects the Donor-Derived Hematopoietic Compartment in Allogeneic Hematopoietic Cell Transplantation (HCT) Recipients. The 49th Annual Meeting of the European Society for Blood and Marrow Transplantation; Paris, France; April 23-26, 2023.
BACKGROUNDDimitrova D, et al. Humoral Reconstitution after Allogeneic Hematopoietic Cell Transplantation (HCT) in Patients Pretreated with Targeted Anti-CD20 Therapy. Transplantation and Cellular Therapy Meetings of ASTCT and CIBMTR; Orlando, FL; February 16, 2023.
BACKGROUNDDimitrova D, Napier S, Stokes A, Uzel G, Miljkovic M, Pittaluga S, Wang H, Notarangelo LD, Ombrello AK, Stone D, Cuellar-Rodriguez J, Wilder J, Hicks SN, Sadler JL, Fowler DH, Gress RE, Kanakry CG, Kanakry JA. Distal Equine Anti-Thymocyte Globulin (ATG) As an Adjunct to Reduced Intensity Conditioning and Posttransplantation Cyclophosphamide (PTCy) for Allogeneic Hematopoietic Cell Transplantation (HCT) in Patients with Benign and Malignant Disorders of T Cell Proliferation or Dysregulation. Transplantation and Cellular Therapy Meetings of ASTCT and CIBMTR; virtual; February 8-12, 2021.
BACKGROUNDDimitrova D, Uzel G, Notarangelo LD, Ombrello AK, Stone D, Parta M, Carroll E, Wilder J, Hicks SN, Sadler JL, Fowler DH, Gress RE, Kanakry CG, Kanakry JA. Novel Reduced Intensity Conditioning (RIC) Approach to Allogeneic Hematopoietic Cell Transplantation (HCT) in Patients with Benign and Malignant Disorders of T Cell Proliferation or Dysregulation. The 46th Annual Meeting of the European Society for Blood and Marrow Transplantation; virtual; August 2020.
BACKGROUNDRechache, Kamil & Dimitrova, Dimana & Feng, Xingmin & Flomerfelt, Francis & Napier, Scott & Sponaugle, Jennifer & Stokes, Anita & Hyder, Mustafa & McKeown, Christi & Wilder, Jennifer & Baruffaldi, Judy & Chai, Amy & Walker, Melissa & Gress, Ronald & Kanakry, Christopher & Kanakry, Jennifer. (2022). Distally-Timed Equine Antithymocyte Globulin (eATG) in Allogeneic Hematopoietic Cell Transplantation (HCT) Conditioning - Pharmacokinetics and the Relationship between Total E-ATG Levels, Pre-HCT Absolute Lymphocyte Count, Immune Reconstitution, and Graft-Versus-Host Responses. Transplantation and Cellular Therapy. 28. S80. 10.1016/S2666-6367(22)00254-8.
BACKGROUNDKamil A. Rechache, Natalia S. Nunes, Xingmin Feng, Francis A Flomerfelt, William Telford, Brian Dawson, Thomas E. Hughes, Syed Muhammad Salman Shah, Jennifer Sponaugle, Amy Chai, Jessenia Campos, Mustafa A. Hyder, Dimana Dimitrova, Christopher G. Kanakry, Jennifer A. Kanakry,The Pharmacokinetics and Pharmacodynamics of Distally-Timed Eatg in Allogeneic Hematopoietic Cell Transplantation Conditioning,Transplantation and Cellular Therapy,Volume 31, Issue 2, Supplement,2025,Pages S174-S175,ISSN 2666-6367,https://doi.org/10.1016/j.jtct.2025.01.269.
BACKGROUND
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr. Dimana Dimitrova
- Organization
- National Cancer Institute
Study Officials
- PRINCIPAL INVESTIGATOR
Dimana Dimitrova, M.D.
National Cancer Institute (NCI)
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- NIH
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
September 7, 2018
First Posted
September 10, 2018
Study Start
September 4, 2018
Primary Completion
April 3, 2025
Study Completion (Estimated)
April 3, 2030
Last Updated
March 17, 2026
Results First Posted
March 17, 2026
Record last verified: 2026-02
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF
- Time Frame
- Clinical data available during the study and indefinitely. Genomic data is available once genomic data is uploaded per protocol Genomic Data Sharing (GDS) plan for as long as database is active.
- Access Criteria
- Clinical data will be made available with the permission of the study principal investigator (PI). Genomic data is made available via the database of Genotypes and Phenotypes (dbGaP) through requests to the data custodians.
All individual participant data (IPD) recorded in the medical record will be shared with intramural investigators upon request. In addition, all large-scale genomic sequencing data will be shared with subscribers to the database of Genotypes and Phenotypes (dbGaP).