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

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Qué se está evaluando

Isolex 300i plus MoAbs

Dispositivo
Quiénes están siendo reclutados

Trastornos de las Proteínas Sanguíneas+28

+ Enfermedades de la Médula Ósea

+ Enfermedades Cardiovasculares

De 10 a 55 años
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Cómo está diseñado el estudio

Estudio de Tratamiento

Fase 2
Intervencional
Inicio del estudio: febrero de 1999
Ver detalles del protocolo

Resumen

Patrocinador PrincipalNational Heart, Lung, and Blood Institute (NHLBI)
Última actualización: 26 de septiembre de 2018
Extraido de una base de datos validada por el gobierno.Reclamar como socio

Fecha de inicio: 22 de febrero de 1999

Fecha en la que se inscribió al primer participante.

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
Patrocinador PrincipalNational Heart, Lung, and Blood Institute (NHLBI)
Última actualización: 26 de septiembre de 2018
Extraido de una base de datos validada por el gobierno.Reclamar como socio

Protocolo

Esta sección proporciona detalles del plan del estudio, incluyendo cómo está diseñado y qué se está evaluando.
Detalles del Diseño

Se reclutarán 102 pacientes

Número total de participantes que el ensayo clínico espera reclutar.

Estudio de Tratamiento

Estos estudios prueban nuevas formas de tratar una enfermedad, condición o problema de salud. El objetivo es determinar si un nuevo medicamento, terapia o enfoque funciona mejor o tiene menos efectos secundarios que las opciones existentes.


Elegibilidad

Los investigadores buscan pacientes que cumplan ciertos criterios, conocidos como criterios de elegibilidad: estado general de salud o tratamientos previos.
Condiciones
Criterios

Cualquier sexo

Sexo biológico de los participantes elegibles para inscribirse.

De 10 a 55 años

Rango de edades de los participantes que pueden unirse al estudio.

Voluntarios sanos no permitidos

Indica si personas sanas, sin la condición que se estudia, pueden participar.

Condiciones

Patología

Trastornos de las Proteínas SanguíneasEnfermedades de la Médula ÓseaEnfermedades CardiovascularesEnfermedad CrónicaEnfermedades HematológicasEnfermedades hemáticas y linfáticasTrastornos HemorrágicosEnfermedades del sistema inmunitarioTrastornos InmunoproliferativosLeucemiaLeucemia LinfocíticaLeucemia MieloideEnfermedades LinfáticasLinfomaTrastornos LinfoproliferativosTrastornos MieloproliferativosNeoplasiasNeoplasias por tipo histológicoNeoplasias por SitioParaproteinemiasProcesos PatológicosCondiciones Patológicas, Signos y SíntomasEnfermedades VascularesLeucemia de células BEnfermedad de Injerto contra HuéspedLinfoma no HodgkinMieloma MúltipleSíndromes MielodisplásicosLeucemia linfocítica crónica de células BLeucemia Mieloide Crónica BCR-ABL PositivaLeucemia mieloide aguda

Criterios

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.

Plan de Estudio

Conoce todos los tratamientos administrados en este estudio, su descripción detallada y en qué consisten.
Objetivos del Estudio

Objetivos del Estudio

Objetivos Primarios

Centros del Estudio

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Este estudio tiene una ubicación

National Institutes of Health Clinical Center, 9000 Rockville Pike

Bethesda, United StatesAbrir National Institutes of Health Clinical Center, 9000 Rockville Pike en Google Maps
Completado1 Centros de Estudio