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CD34+ Transplants for Leukemia and Lymphoma

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

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05565105
Enrollment
100
Registered
2022-10-04
Start date
2026-06-01
Completion date
2033-06-01
Last updated
2026-03-03

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

Conditions

Leukemia, Lymphocytic, Acute, Leukemia, Myeloid, Acute

Keywords

Stem Cell Transplant

Brief summary

This study will evaluate whether processing blood stem cell transplants using an investigational device (the CliniMACS system) results in less complications for patients undergoing transplant for treatment of a blood malignancy (cancer) or blood disorder.

Interventions

RADIATIONTotal Body Irradiation (TBI)

Hyper-fractioned TBI is administered by a linear accelerator at a dose rate of \< 15 cGy/minute.

DRUGThiotepa

Thiotepa: 5 mg/kg/day IV over approximately 4 hours daily x 2 (Day -5 and Day -4).

DRUGCyclophosphamide

Cyclophosphamide: 60 mg/kg/day x 2 or Fludarabine 25 mg/m\^2 x 5 if cyclophosphamide is contraindicated

DRUGBusulfan

Busulfan: 0.8 mg/kg every 6 hours x 10 or 12 doses (depending on disease) with dose modified according to pharmacokinetics

DRUGMelphalan

Melphalan: 70 mg/m\^2/day x 2

DRUGFludarabine

Fludarabine: 25 mg/m\^2/day x 5

Sponsors

Guenther Koehne
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 74 Years
Healthy volunteers
No

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. 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. ALL/CLL in patient remission clinical or molecular features indicating a high risk for relapse; or ALL/CLL 2nd remission 5. 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. Chronic myelomonocyte leukemia: CMML-1 and CMML-2. The following inclusion criteria are also required: * Patient's age includes from ≥18 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/dL or if serum creatinine is outside the normal range, then CrCl \> 30 ml/min (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.

Exclusion criteria

* Female patients who are pregnant or breast-feeding * Active viral, bacterial or fungal infection * Patient seropositive for HIV-I /II; HTLV -I /II * Presence of leukemia in the CNS

Design outcomes

Primary

MeasureTime frameDescription
Incidence rate of graft versus host disease (GvHD)Two yearsIncidence of acute and chronic GvHD
Severity of diseaseTwo yearsSeverity of the adverse events will be reported based on the CTCAE Version 5.
Incidence of transplant-related mortality (TRM)Two yearsTRM includes fatal complications resulting from the allogeneic transplant and/ or treatment regimens such as graft failure, GvHD, hemorrhages, and infections.
Change in overall survival (OS)Six months, one year, two yearsOS is defined as time from transplant to death or last follow-up.
Change in disease free survival (DFS)Six months, one year, two yearsDFS is defined as the minimum time interval of times to relapse/recurrence, to death or to the last follow- up, from the time of transplant.

Secondary

MeasureTime frameDescription
Proportion of patients optimal and suboptimal dosesTwo yearsThe proportion of patients receiving optimal cell doses (CD34+: \>5x 10\^6/kg and CD3+: \< 5 x10\^4/kg) and suboptimal doses (CD34+: \<3 x 10\^6/kg and CD3+: \>5 x 10\^4/kg).

Countries

United States

Contacts

CONTACTGuenther Koehne, MD, PhD
GuentherK@baptisthealth.net786-596-2000
CONTACTClaudia Torralbas, RN
claudiatorr@baptisthealth.net786-596-2000
PRINCIPAL_INVESTIGATORGuenther Koehne, MD, PhD

Baptist Health South Florida/Miami Cancer Institute

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 4, 2026