CD34+ Enriched Transplants From HLA-Compatible Patients With Hematologic Malignancies

Acute Myeloid Leukemia Clinical Trial

— 2019-KOE-001  

Official title:

A Phase II Trial of CD34+ Enriched Transplants From HLA-Compatible Related or Unrelated Donors for Treatment of Patients With Hematologic Malignancies

Clinical Trial Details — Status: Withdrawn

Administrative data

• NCT number: NCT04282174
• Other study ID #: 2019-KOE-001
• Status: Withdrawn
• Phase: Phase 2
• Start date: September 2022
• Est. completion date: March 1, 2030

Study information

• Verified date: September 2022
• Source: Baptist Health South Florida
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This is a Phase II trial testing disease-specific myeloablative conditioning regimens for preparatory cytoreduction of patients receiving allogeneic HLA-compatible related or unrelated transplants of GCSF-mobilized peripheral blood stem cells (PBSC) depleted of T-cells by positive selection of CD34+ progenitor cells using the CliniMACS system. The CliniMACS Fractionation system is a method that positively selects CD34+ progenitor cells from PBSC by immunoadsorption of cells binding on anti CD34 monoclonal antibody to paramagnetic beads, which can then be isolated by passage through a magnetized column and released by agitation of beads. Two conditioning regimens have been used successfully with an alternative similar system, isolex, which is no longer being manufactured.

Description:

For this trial, patients will be put into one of two myeloablative conditioning regimens, based on their disease, stage of disease, and dose of radiation accumulated in the course of treatment. Approximately twenty-four to forty-eight hours after completion of each conditioning regimen, patients will receive a transplant of a CD34+ progenitor cell-enriched, T-cell depleted fraction of GCSF-mobilized PBSC after fractionation on the CliniMACS device, from his/her HLA compatible donor. Due to stringent T-cell depletion, no significant Graft-versus-host disease is anticipated. Should Graft-versus-host disease occur, standard treatment would be initiated per the Transplant Service guidelines. The purpose of this trial is to evaluate the potential of T-cell depleted Haploidentical Stem Cell Transplant fractionated by the CliniMACS system, when administered for disease targeted cytoreductive regimens, to secure consistent engraftment and hematopoietic reconstitution in HLA-compatible related or unrelated hosts, and to prevent or abrogate acute and chronic forms of Graft-versus-host disease. This study seeks to validate that these pre-transplant conditioning regimens, when administered with a CD34+ progenitor cell enriched, T-cell depleted graft, fractionated in the CliniMACS system, will be associated with a low incidence of non-leukemic mortality. The sample size is as follows: Regimen A: Hyperfractionated Total Body Irradiation/Thiotepa/Cyclophosphamide: 100 patients Regimen B: Busulfan/Melphalan/Fludarabine: 100 patients It is anticipated that the accrual will last five years. Patients will be followed for two years following transplantation.

Recruitment information / eligibility

• Status: Withdrawn
• Enrollment: 0
• Est. completion date: March 1, 2030
• Est. primary completion date: March 1, 2030
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: N/A to 74 Years

Eligibility

Inclusion Criteria:

Malignant conditions or other life-threatening disorders correctable by transplant for which CD34+ selected, T-cell depleted allogeneic hematopoietic stem cell transplantation is

indicated such as:

1. Acute myeloid leukemia (AML) in 1st remission - for patients who is AML does not have 'good risk' cytogenetic features (i.e. t8:21, t 15: 17, inv16).

2. Secondary AML in 1st remission

3. AML in 1st relapse or 2nd remission

4. Acute lymphoblastic leukemia (ALL) / Chronic Lymphocytic Leukemia (CLL) in pt remission clinical or molecular features indicating a high risk for relapse; or ALL/CLL 2nd remission

5. Chronic myelogenous leukemia (CML) failing to respond to or not tolerating Imatinib or Dasatinib in first chronic phase of disease; CML in accelerated phase, second chronic phase, or in CR after accelerated phase or blast crisis.

6. Non-Hodgkin's lymphoma with chemo responsive disease in any of the following

categories:

1. Intermediate or high-grade lymphomas who have failed to achieve a first CR or have relapsed following a 1st remission who are not candidates for autologous transplants.

2. Any NHL in remission which is considered not curable with chemotherapy alone and not eligible/appropriate for autologous transplant.

7. Myelodysplastic syndrome (MDS): RA/RARS/RCMA with high-risk cytogenetic features or transfusion dependence, as well as RAEB-1 and RAEB-2 and Acute Myelogenous Leukemia (AML) evolved from MDS.

8. Chronic myelomonocyte leukemia: CMML-1 and CMML-2.

9. Multiple Myeloma with disease in the following categories:

1. Patients with relapsed multiple myeloma following autologous stem cell transplantation who have achieved at least partial response following additional chemotherapy.

2. Patients with high-risk cytogenetics at diagnosis must have achieved at least a partial response following autologous stem cell transplantation. Patients must have complex karyotype, del l7p, t4; 14 and/or t 4; 16 by Fluorescence in situ hybridization (FISH) and/or del l3 by karyotyping.

The following inclusion criteria are also required:

• Patient's age includes from birth on to < 74 years old.
• Patients may be of either gender or any ethnic background.
• Patients must have a Karnofsky (adult) Performance Status of at least 70%
• Patients must have adequate organ function measured by:

Cardiac: asymptomatic or if symptomatic then LVEF at rest must be 50% and must improve with exercise. Hepatic: < 3x ULN AST and: s 1.5 total serum bilirubin, unless there is congenital benign hyperbilirubinemia or if the hyperbilirubinemia is directly caused by the disease in which the patient is receiving a transplant (e.g. AML Chloroma obstructing the biliary tree). Patients with higher bilirubin levels due to causes other than active liver disease is also eligible with Pl approval e.g. patients with PNH, Gilbert's disease or other hemolytic disorders. Renal: serum creatinine: s; 1.2 mg/di or if serum creatinine is outside the normal range, then CrCl > 40 ml/m in (measured or calculated/estimated). Pulmonary: asymptomatic or if symptomatic, DLCO 50% of predicted (corrected for hemoglobin). Each patient must be willing to participate as a research subject and must sign an informed consent form. Donor Inclusion Criteria

• Each donor must meet criteria outlined by institutional guidelines
• Donor should agree to undergo general anesthesia and bone marrow harvest collection if PBSC yield is inadequate or otherwise not transplantable for whatever reason. Exclusion Criteria: Subject Exclusion Criteria
• Female patients who are pregnant or breast-feeding
• Active viral, bacterial or fungal infection
• Patient seropositive for HI V-I /II; HTLV -I /II
• Presence of leukemia in the CNS. Donor Exclusion Criteria
• If donors do not meet institutional guidelines, exclusion will be considered.

Related Conditions & MeSH terms

• Acute Lymphoblastic Leukemia
• Acute Myeloid Leukemia
• Chronic Lymphocytic Leukemia
• Chronic Myelogenous Leukemia
• Hematologic Diseases
• Hematologic Malignancy
• Hematologic Neoplasms
• Leukemia
• Leukemia, Lymphocytic, Chronic, B-Cell
• Leukemia, Myelogenous, Chronic, BCR-ABL Positive
• Leukemia, Myeloid
• Neoplasms
• Precursor Cell Lymphoblastic Leukemia-Lymphoma

Intervention

Device:
• CliniMACS
allogeneic Human leukocyte antigen-compatible related or unrelated transplants of GCSF-mobilized peripheral blood stem cells depleted of T-cells by positive selection of CD34+ progenitor cells using the CliniMACS system

Procedure:
• Bone Marrow Transplant
Bone Marrow Transplant will come from either an HLA matched related sibling or HLA un-related donor

Drug:
• Hyperfractionated Total Body Irradiation
Hyperfractionated Total Body Irradiation is administered at a dose rate of < 20 cGy/minute. Doses of 125 cGy/fraction are administered at a minimum interval of 4 hours between fractions, three times/day for a total of 11 or 12 doses (1375 or 1500 cGy) over 4 days (Day -9, -8, -7 and -6).
• Thiotepa
Thiotepa: 5mg/kg/day IV over approximately 4 hr. daily x 2 (Day -5 and Day -4). If scheduling of transplant harvests requires, the dose of Thiotepa may be administered as a single dose of 10mg/kg/day x 1.
• Cyclophosphamide
Cyclophosphamide: 60 mg/kg/day I V over approximately 30 min daily x 2 days (d -3 and -2). Cyclophosphamide dosing will be adjusted if patient is > 125% of ideal body w eight and will be calculated based on adjusted ideal body weight, as per MCI standard of care guidelines.
• Busulfan
0.8 mg/kg every 6 hours x 10 or 12 doses), (depending on disease) with dose modified
• Melphalan
Melphalan 70mg/m2/day x 2 days IV over 30 minutes. Dose should be adjusted if patient is > 125% ideal body weight and should be calculated on adjusted ideal body weight per MCI standard of care guidelines. Melphalan will be administered on Days - 7 and -6 for multiple myeloma patients.
• Fludarabine
Fludarabine 25mg/m2/days x 5 days IV over 30 minutes. Fludarabine may be adjusted in the case of renal toxicity. In select cases in which the peripheral blood stem cells must be harvested a day later than requested due to a scheduling issue with the donor or Stem Cell Processing Laboratory.

Locations

Country	Name	City	State
United States	Miami Cancer Institute at Baptist Health, Inc.	Miami	Florida

Sponsors (1)

Lead Sponsor	Collaborator
Baptist Health South Florida

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Assess the change of incidence and severity of chronic GvHD	To assess the incidence and severity of chronic GvHD following T cell depleted, CD34+ progenitor cell enriched transplants fractionated by the CliniMACS system.	6 months, 1 year, 2 years
Primary	Assess the change of incidence and severity of acute GvHD	To assess the incidence and severity of acute GvHD following T cell depleted, CD34+ progenitor cell enriched transplants fractionated by the CliniMACS system.	6 months, 1 year, 2 years
Primary	Assess the change of incidence of non-relapse mortality	To assess the incidence of non-relapse mortality (transplant-related mortality) following each cytoreduction regimen and a transplant fractionated by the CliniMACS system.	6 months, 1 year, 2 years
Primary	Estimate the probability change of survival and disease-free survival (DFS)	To estimate the probability of survival and disease-free survival (DFS) at 6 months, 1 year and 2 years post-transplant for each disease-targeted cytoreduction regimen when used with a T-cell depleted graft fractionated by the CliniMACS system.	6 months, 1 year, 2 years
Secondary	Determine the proportion of patients receiving optimal CD34+; CD3+	To determine the proportion of patients receiving optimal CD34+ (>5x 106/kg) and CD3+ (< 5 x104/kg) cell doses the proportion recurring suboptimal doses (<3 x 106/kg) CD34+ cells; and the proportion of patients receiving CD3+ T-cell doses >5 x 104/kg.	6 months, 1 year, 2 years
Secondary	Correlate doses of CD34+ progenitors and CD3+ T cells with engraftment	To correlate doses of CD34+ progenitors and CD3+ T cells with engraftment, graft vs. host disease and non-relapse mortality.	6 months, 1 year, 2 years

External Links

•   MCI - Website