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VPA Expanded UCB Transplantation for Treatment of Patients With Hematological Malignancies

Phase I Study of Valproic Acid Expanded Cord Blood Stem Cells as an Allogeneic Donor Source for Adults With Hematological Malignancies

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03885947
Enrollment
7
Registered
2019-03-22
Start date
2019-02-21
Completion date
2021-03-10
Last updated
2021-05-24

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

Conditions

Acute Leukemia in Remission, Acute Lymphoblastic Leukemia in Remission, Hematological Malignancy, Hodgkin Lymphoma, Myelodysplastic Syndromes, Non-Hodgkin Lymphoma

Keywords

Hematological Malignancies, Expanded Umbilical Cord, Allogeneic Stem Cell Transplant, Leukemia, Lymphoma

Brief summary

In this Phase I study, the study team will evaluate the safety of Valproic Acid (VPA) expanded cord blood stem cells defined by the lack of serious infusion reactions or graft failure in patients with hematological malignancies undergoing umbilical cord blood transplantation. Moreover, the study team will also evaluate time to neutrophil and platelet engraftment as well as transplant related outcomes such as graft versus host disease (GVHD), treatment related mortality (TRM), and overall survival (OS).

Detailed description

This is a phase I trial for safety of VPA expanded cord blood stem cells in patients with hematological malignancies undergoing allogeneic stem cell transplantation. The primary endpoint of the study is safety as defined by the incidence of infusion reactions and graft failure, lack of neutrophil engraftment by day +42. The trial will consist of two cohorts. First cohort of 5-7 patients, will undergo double umbilical cord blood (UCB) transplantation. One UCB unit will undergo CD34 selection followed VPA based expansion. CD34 negative portion of that unit will be cryopreserved to be infused later following infusion of the expanded portion. Infusion of the second unmanipulated UCB will follow it. Preparative regimen is Fludarabine 150 mg/m2/Cytoxan 50 mg/m2/Thiotepa 10 mg/m2/TBI 400cGy. Following successful engraftment in the first cohort, second cohort (10 patients) will only receive single manipulated unit. Otherwise, patients will receive standard allogeneic stem cell transplantation care.

Interventions

CD34 selected VPA expanded umbilical cord blood cells used in combination with or without unmanipulated umbilical cord blood .

DRUGValproic Acid

Valproic Acid (VPA) expanded cord blood stem cells

DRUGFludarabine

Fludarabine 150 mg/m2

DRUGcytoxan

Cytoxan 50 mg/m2

DRUGThiotepa

Thiotepa 10 mg/m2

BIOLOGICALTBI

TBI 400cGy

Sponsors

Alla Keyzner
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Open label single arm

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

Disease criteria: Patients with the following hematological malignancies: * Acute Myeloid Leukemia (AML) in complete remission (CR) * Acute Lymphoblastic Leukemia (ALL) in complete remission (CR) * Myelodysplastic Syndrome (MDS) requiring intensive chemotherapy * Non-Hodgkin lymphoma in complete or partial remission * Hodgkin lymphoma in complete or partial remission Age Criteria: \- 18 years up to 65 years. Organ Function and Performance Status Criteria: \- Performance status score: Karnofsky Score ≥60 Adequate major organ function defined as: * Left ventricular ejection fraction ≥40% * Pulmonary function test demonstrating DLCO ≥50% predicted and corrected for hemoglobin * Serum creatinine ≤ 2 mg/dL * Transaminases ≤ 3x ULN * Bilirubin ≤3x ULN except for in case of Gilbert's syndrome or ongoing hemolysis * Ability to understand and the willingness to sign a written informed consent document Donor availability: -Lack of suitable HLA matched related or unrelated donor available within 30 days or less if BMT is urgent in the opinion of the transplant physician.

Exclusion criteria

* Progressive, persistent disease or active malignancy * Greater than 10% blasts on bone marrow biopsy in patients with MDS * Chemotherapy naïve * History of myelofibrosis * Presence of Bone Marrow Fibrosis grade 2/3 * Presence of donor specific anti-HLA antibodies against available UCB units at A, B, C or DR loci, with a mean fluorescence intensity (MFI)\>1000 * History of prior allogeneic stem cell transplantation * Uncontrolled viral, bacterial or fungal infection * History of HIV infection * Presence of active CNS disease at the time of transplantation * Pregnant or breastfeeding female * Inability or unwillingness to use effective birth control.

Design outcomes

Primary

MeasureTime frameDescription
Number of Infusion Reaction42 daysSafety as measured by the incidence of infusion related reactions.
Number of Graft Failure42 daysSafety as measured by the incidence of graft failures.

Secondary

MeasureTime frameDescription
Number of transplant-related mortality (TRM)1 yearTransplant related outcomes: transplant-related mortality (TRM)
Number of disease free survivals1 yearTransplant related outcomes: Number of disease free survivals
Number of overall survivals1 yearTransplant related outcomes: Number of overall survivals
Number of participants at risk of GVHD1 yearTransplant Related Outcomes: risk of GVHD
Time to neutrophil engraftment1 yearTransplant related outcomes: time to neutrophil engraftment
Time to myeloid engraftment42 daysAssess the kinetics of engraftment and immune reconstitution by assessing time to myeloid engraftment
Time to lymphoid engraftment42 daysAssess the kinetics of engraftment and immune reconstitution by assessing time to lymphoid engraftment
Change in T cell countBaseline and 42 daysAssess the kinetics of engraftment and immune reconstitution by assessing the T cell count at 42 days as compared to baseline
Number of infectious complications1 yearTransplant Related Outcomes: incidence of infectious complications - which is any documented bacterial, viral, or fungal infections.
Time to platelets engraftment1 yearTransplant related outcomes: time to platelets engraftment

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026