Completed

Peripheral Blood Mobilized Hematopoietic Precursor Cell Transplantation Followed by T-Cell Add-Back for Hematological Malignancies - Role of Cyclosporine

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What is being tested

Isolex 300i plus MoAbs

Device
Who is being recruted

Blood Protein Disorders+33

+ Bone Marrow Diseases

+ Cardiovascular Diseases

From 10 to 55 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Phase 2
Interventional
Study Start: February 1999
See protocol details

Summary

Principal SponsorNational Heart, Lung, and Blood Institute (NHLBI)
Last updated: September 26, 2018
Sourced from a government-validated database.Claim as a partner

Study start date: February 22, 1999

Actual date on which the first participant was enrolled.

Bone marrow stem cell transplant studies carried out by the NHLBI BMT Unit have focused on approaches to optimize the stem cell and lymphocyte dose in order to improve transplant survival and increase the graft-vs.-leukemia effect. A CD34 stem cell dose of greater than 3 x 10(6)/kg was found to increase survival and reduce relapse, while a CD3+ lymphocyte dose of less than 1 x 10(5)/kg was associated with a very low incidence of GVHD. Although processing of 2 peripheral blood progenitor cell (PBPC) collections with the CellPro immunoabsorption method (combined CD34-positive selection and CD2-negative selection) provided an improvement over previous methods, the system did not always achieve these optimal cell doses. A recent preclinical evaluation by the Department of Transfusion Medicine of a new immunomagnetic cell selection system available from Nexell, Inc. has demonstrated improved recovery of CD34+ cells and increased depletion of T lymphocytes, compared to the CellPro method. Incorporation of the Nexell system (Isolex 300i) into this clinical protocol will allow us to more consistently achieve CD34+ cell doses above the threshold of 3 x 10(6)/kg and CD3+ lymphocyte dosing in the region of 0.5 x 10(5)/kg. This will make it possible to test (1) the potential benefit of optimized transplant cell doses, (2) elimination of post transplant immunosuppression to enhance immune recovery. In this study, we will use the Nexell Isolex 300i system to obtain more data on the relationship between CD34+ stem cell dose and outcome. In recipients who receive a T cell dose less than 0.5 x 10(5) CD3+ cells/kg the effect of withdrawing cyclosporine on development of GVHD will be evaluated in a cohort study: 20 patients will receive low dose cyclosporine. If the incidence of grade II or worse GVHD is 10% or less, no post transplant immunosuppression will be given to the next cohort and the incidence and severity of acute GVHD again assessed. Stopping rules for unacceptable GVHD severity will be applied. Two match groups HLA 6/6 and 5/6 donor-recipient pairs will be separately studied using this approach. In a second phase of the study we will continue to accumulate data on T lymphocyte add-back given on day 45 and day 100 after transplant. For this phase, cyclosporine will be reintroduced on day 44 and continued until day 120 to accelerate immune recovery. Up to 70 patients aged between 10 and 55 years will be studied in each subset (HLA 6/6 and 5/6 matched cohorts). The major endpoint of the study is acute GVHD after transplant. We will also measure engraftment, acute and chronic GVHD, leukemic relapse, transplant-related and all causes of mortality, cytomegalovirus reactivation and leukemia-free survival. Patients will be followed for a minimum of 5 years.

NCT00001873
Principal SponsorNational Heart, Lung, and Blood Institute (NHLBI)
Last updated: September 26, 2018
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

102 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.


Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

From 10 to 55 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Blood Protein DisordersBone Marrow DiseasesCardiovascular DiseasesChronic DiseaseHematologic DiseasesHemic and Lymphatic DiseasesHemorrhagic DisordersImmune System DiseasesImmunoproliferative DisordersLeukemiaLeukemia, LymphoidLeukemia, MyeloidLymphatic DiseasesLymphomaLymphoproliferative DisordersMyeloproliferative DisordersNeoplasmsNeoplasms by Histologic TypeNeoplasms by SiteParaproteinemiasPathologic ProcessesPathological Conditions, Signs and SymptomsVascular DiseasesLeukemia, B-CellHemostatic DisordersDisease AttributesNeoplasms, Plasma CellGraft vs Host DiseaseLymphoma, Non-HodgkinMultiple MyelomaMyelodysplastic SyndromesLeukemia, Lymphocytic, Chronic, B-CellLeukemia, Myelogenous, Chronic, BCR-ABL PositiveLeukemia, Myeloid, AcuteHematologic NeoplasmsPrecursor Cell Lymphoblastic Leukemia-Lymphoma

Criteria

INCLUSION CRITERIA - Patient: Ages 10-55 years. Chronic myelogenous leukemia, any of these categories: chronic phase, accelerated phase or blast transformation. Acute lymphoblastic leukemia, any of these categories: Adults (greater than 18 years) in first remission with high-risk features (presenting leukocyte count greater than 100,000/cu mm, karyotypes t9; 22, t4, t11, biphenotypic leukemia) All second or subsequent remissions, primary induction failure, partially responding or untreated relapse. Acute myelogenous leukemia (AML): AML in first remission except AML with good risk karyotypes: AML M3 (t15; 17), AML M4Eo (inv 16), AML t (8;21). All AML in second or subsequent remission, primary induction failure and resistant relapse. Myelodysplastic syndromes, any of these categories: refractory anemia with transfusion dependence, refractory anemia with excess of blasts, transformation to acute leukemia, chronic myelomonocytic leukemia. Myeloproliferative disorders (myelofibrosis, polycythemia vera, essential thrombocythemia) in transformation to acute leukemia. Chronic lymphocytic leukemia refractory to fludarabine treatment and with bulky progressive disease or with thrombocytopenia (less than or equal to 100,000 / mcl) or anemia (less than or equal to 10g/dl) not due to recent chemotherapy. No major organ dysfunction precluding transplantation. DLCO greater than or equal to 60% predicted. Left ventricular ejection fraction: greater than or equal to 40% predicted. ECOG performance status of 0 or 1. For adults: Written informed consent given by adults. For minors: Written informed consent from one parent or guardian. Informed oral consent from minors: The process will be explained to the minor on a level of complexity appropriate for their age and ability to comprehend. Women of childbearing age with a negative pregnancy test may participate. EXCLUSION CRITERIA - Recipient (any of the following): Patient pregnant. Age less than 10 and greater than 55 years. ECOG performance status of 2 or more. Severe psychiatric illness in the patient or donor. Mental deficiency sufficiently severe as to make compliance with the treatment unlikely, and making informed consent impossible. Major anticipated illness or organ failure incompatible with survival from transplant. DLCO less than 60% predicted. Left ventricular ejection fraction: less than 40% predicted. Serum creatinine greater than 3mg/dl. Serum bilirubin greater than 4 mg/dl. Transaminases greater than 3x upper limit of normal. HIV positive (donor or recipient). History of other malignancies except basal cell or squamous carcinoma of the skin, positive PAP smear and subsequent negative follow up. Individuals with diseases listed above as eligible for this protocol, but where debility or age makes the risk of intensive myeloablative therapy unacceptable. These patients will be considered for a non-myeloablative allogeneic transplantation protocol (97-H-0202, 99-H-0050). INCLUSION CRITERIA - Donor: HLA 6/6 identical or 5/6 (one antigen mismatched) family donor. Fit to receive G-CSF and give peripheral blood stem cells (normal blood count, normotensive, no history of stroke). For adults: Written informed consent given by adults. For minors: Written informed consent from one parent or guardian. Informed oral consent from minors: The process will be explained to the minor on a level of complexity appropriate for their age and ability to comprehend. EXCLUSION CRITERIA - Donor (any of the following): Pregnant or lactating. Severe psychiatric illness. Mental deficiency sufficiently severe as to make compliance with the BMT treatment unlikely, and making informed consent impossible. HIV positive.

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Study Objectives

Study Objectives

Primary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

National Institutes of Health Clinical Center, 9000 Rockville Pike

Bethesda, United StatesOpen National Institutes of Health Clinical Center, 9000 Rockville Pike in Google Maps
CompletedOne Study Center