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Methods to Enhance the Safety and Effectiveness of Stem Cell Transplants

25 maggio 2021 aggiornato da: National Heart, Lung, and Blood Institute (NHLBI)

Peripheral Blood Stem Cell Allotransplantation for Hematological Malignancies Using a Positive Stem Cell Selection Technique for T Cell Depletion, Followed by Delayed T Cell Add-Back

Bone marrow stem cell transplants (otherwise called bone marrow transplants) from healthy donors are sometimes the only means of curing hematological malignant diseases such as acute and chronic leukemias, myelodysplastic syndrome, myeloproliferative diseases and lymphomas. Before transplant the patient receives chemotherapy and radiation treatment to reduce the malignancy to low levels and to prevent rejection of the transplant. The transplant restores the blood counts to normal and replaces the patients immunity with that of the donor. The donors immune cells increase the effect of the transplant by attacking remaining malignant cells. Donor immune cells (especially those called T lymphocytes) also attack healthy non-cancerous cells and tissues of the recipient causing "graft-versus-host-disease" (GVHD). Strong GVHD reactions occurring within weeks after the transplant can be life-threatening . In this study we remove most of the T lymphocytes from the transplant to minimize the risk of GVHD. However to improve immunity against residual malignant cells and boost immunity to infections, donor T cells (stored frozen at time of transplant) are given back around 90 days after the transplant when they have a reduced risk of causing serious GVHD.

Any patient between 10 and 75 years of age with acute or chronic leukemia, myelodysplastic syndrome, myeloproliferative syndromes or lymphoma, who have a family member who is a suitable stem cell donor may be eligible for this study. Candidates are screened with a medical history and various tests and examinations.

Panoramica dello studio

Stato

Completato

Condizioni

Intervento / Trattamento

Descrizione dettagliata

Peripheral blood stem cell transplant research carried out by the National Heart Lung and Blood Institute (NHLBI) Bone Marrow Transplantation (BMT) Unit focus on transplant techniques designed to decrease graft versus host disease (GVHD), increase the graft-versus-leukemia (GVL) effect and reduce the risk of post-transplant graft rejection.

We have found that by controlling the stem cell (CD34+ cell) and T lymphocyte (CD3+ cell) dose severe GVHD can be reduced whilst beneficial GVL effects can be preserved by postponed donor lymphocyte infusion (DLI). We found that T cell depleted transplants using the Nexell/Baxter Isolex 300i system to obtain high CD34+ doses depleted of lymphocytes were safe to administer and associated with less severe acute GVHD and promising response rates and overall survival, when combined with a delayed T cell add-back (DLI). This protocol is designed to evaluate safety and efficacy of an improved T cell depletion procedure using the Miltenyi CliniMACs system (CD34 reagent system) with a delayed T cell add back in the HLA-matched peripheral blood stem cell transplant setting.

The protocol will accrue up to 68 subjects ages 10-75 with a hematological malignancy, in whom allogeneic stem cell transplantation from an HLA-matched sibling would be routinely indicated. 68 sibling donors will also be recruited. Diagnostic categories will include acute and chronic leukemia, myelodysplastic syndrome, lymphoma, multiple myeloma and myeloproliferative syndromes.

Subjects will receive a myeloablative conditioning regimen of cyclophosphamide, fludarabine and total body irradiation, followed by an infusion of a stem cell product prepared using the Miltenyi CliniMacs system for CD34 selection, and a delayed T-cell add back as donor lymphocyte infusion (DLI) at day 90. Older subjects will receive a lower dose of irradiation to reduce the regimen intensity.

Participants undergo apheresis to collect lymphocytes for research studies. This procedure involves collecting blood through a needle in the arm, extracting the lymphocytes through a cell separator machine and returning the rest of the blood through a needle in the other arm. Before treatment begins, patients have a central intravenous line (plastic tube) placed in a vein in the neck. This line remains in place during the transplant and recovery period for drawing and transfusing blood, giving medications, and infusing the donated cells.

To prepare patients for transplantation their immune system is suppressed by a combination of chemotherapy and radiation which will also help to fight remaining malignant cells. The chemotherapy consists of two anti-cancer drugs (fludarabine and cyclophosphamide) and will be infused over the central line starting eight days before the transplant. Patients will receive eight doses of total body irradiation, administered in two 30-minute sessions per day for 4 days. Patients above 55 years of age who tolerate transplants less well than younger individuals will receive a lower dose of radiation. One day after the preparative treatment is finished, patients receive the transplant of donors stem cells as an infusion through the central line.

Patients receive cyclosporine, an immunosuppressive drug starting 6 days before the transplant until 21 days post-transplant. This helps prevent both transplant rejection and GVHD. The drug is stopped to allow the donor immunity to function and is restarted on day 89 to prevent GVHD from the infusion of T lymphocytes on day 90.

Patients are followed with various tests, treatments and examinations periodically for the first 3 years and then yearly thereafter.

Primary endpoint will be overall survival at day +200. Non-relapse mortality at day +200 will be monitored for safety. Secondary endpoints will be standard transplant outcome variables such as non-hematologic toxicity, incidence and severity of acute and chronic GVHD and relapse of disease.

Tipo di studio

Interventistico

Iscrizione (Effettivo)

116

Fase

  • Fase 2

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

  • Stati Uniti
    • Maryland
      • Bethesda, Maryland, Stati Uniti, 20892
        • National Institutes of Health Clinical Center, 9000 Rockville Pike

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 10 anni a 75 anni (Bambino, Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

INCLUSION CRITERIA - RECIPIENT:

  • Ages 10-75 years inclusive
  • Chronic myelogenous leukemia (CML):
  • Subjects under the age of 21 in chronic phase
  • Subjects ages 10-75 in chronic phase who have failed treatment with imatinib, have intolerance to imatinib, or who did not receive imatinib at therapeutic doses within the first 12 months from diagnosis.
  • Subjects ages 10-75 in accelerated phase or blast transformation.
  • Acute lymphoblastic leukemia (ALL): any of these categories: ALL in first remission with high-risk features (presenting leukocyte count greater than 100,000/cu mm, Karyotypes t9; 22, t4, t19, 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 (MDS): any of these categories - refractory anemia with transfusion dependence, refractory anemia with excess of blasts, transformation to acute leukemia, chronic myelomonocytic leukemia, atypical MDS/myeloproliferative syndromes
  • Myeloproliferative disorders including atypical (Ph negative) chronic myeloid and neutrophilic leukemias, progressing myelofibrosis, and polycythemia vera, essential thrombocythemia in transformation to acute leukemia or with progressive transfusion requirements or pancytopenia.
  • Chronic lymphocytic leukemia refractory to fludarabine treatment and with bulky progressive disease or with thrombocytopenia (less than or equal to 100,000 /microl) or anemia (less than or equal to 10g/dl) not due to recent chemotherapy.
  • Non-Hodgkins lymphoma including Mantle cell lymphoma relapsing or refractory to standard of care treatments
  • Multiple myeloma, Waldenstrom's macroglobulinemia, unresponsive or relapsed following standard of care treatments.
  • HLA identical (6/6) related donor
  • For adults: Ability to comprehend the investigational nature of the study and provide informed consent. 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 - RECIPIENT:

  • Estimated probability of surviving less than three months
  • Major anticipated illness or organ failure incompatible with survival from transplant
  • Severe psychiatric illness. Mental deficiency sufficiently severe as to make compliance with the transplant treatment unlikely and making informed consent impossible.
  • Positive pregnancy test for women of childbearing age.
  • HIV positive
  • Diffusion Capacity of Lung for Carbon Monoxide (DLCO) adjusted for ventilation and hemoglobin less than 65 percent predicted
  • Left ventricular ejection fraction less than 40 percent
  • Aspartate Aminotransferase (AST)/Serum Glutamate Oxaloacetate Transaminase (SGOT) greater than 10 times upper limit of normal (ULN) (CTCAE grade IV v3.0)
  • Bilirubin greater than 5 times upper limit of normal (ULN) (CTCAE grade IV v3.0)
  • Creatinine greater than 4.5 times upper limit of normal (ULN) (CTCAE grade IV v 3.0)
  • Prior allogeneic stem cell transplantation.

INCLUSION CRITERIA - DONOR:

  • Related donor, HLA identical (6/6) with recipient
  • Weight greater than or equal to 18 kg
  • Age greater than or equal to 2 or less than or equal to 80 years old
  • For adults: Ability to comprehend the investigational nature of the study and provide informed consent. For minors: Written informed consent from one parent or guardian and informed assent: The process will be explained to the minor on a level of complexity appropriate for their age and ability to comprehend.

EXCLUSION CRITERIA - DONOR:

  • Pregnant. Lactating donors permitted provide breast milk is discarded during the days that G-CSF is given
  • Unfit to receive filgrastim (G-CSF) and undergo apheresis (abnormal blood counts, history of stroke, uncontrolled hypertension)
  • Sickling hemoglobinopathies including HbSS, HbAS, HbSC
  • HIV positive donors who are positive for hepatitis B (HBV), hepatitis C (HCV) or human T-cell lymphotropic virus (HTLV-I/II) will be used at the discretion of the investigator following counseling and approval from the recipient
  • Severe psychiatric illness. Mental deficiency sufficiently severe as to make compliance with the BMT treatment unlikely, and making informed consent impossible

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Non randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: T Cell Depletion Transplant Participants
Participants with hematological malignancies received a myeloablative conditioning regimen of cyclophosphamide, fludarabine and total body irradiation followed by an infusion of stem cell product prepared using the Miltenyi CliniMacs system for CD34 selection and a delayed T cell depletion add back as donor lymphocyte infusion at day 90.
Dispositivo: Miltenyi reagent system
Miltenyi Clinimax CD34 Reagent System for CD34 selection and delayed T cell depletion add back
Altri nomi:
  • Miltenyi Clinimax CD34 Reagent System
Droga: Fludarabine
Therapeutic
Altri nomi:
  • Fludar
Droga: Cyclosporine
Therapeutic
Altri nomi:
  • Neorale
Droga: Cyclophosphamide
Therapeutic
Altri nomi:
  • Cytoxan
Altro: Stem Cell Donors
An HLA 6/6 identical family member will be co-enrolled into this study as a stem cell donor. The stem cell collection aspect of this protocol is not investigational.
Altro: FILGRASTIM (G-CSF)
An HLA 6/6 identical family member will be co-enrolled into this study as a stem cell donor. Stem cell Donors will receive G-CSF for stem cell mobilization. The stem cell collection aspect of this protocol is not investigational.
Altri nomi:
  • Neupogen

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Survival and Non-relapse Mortality at Day +200 Using the Miltenyi Reagent System
Lasso di tempo: Day 200
Subjects with hematological malignancies receiving a myeloablative conditioning regimen of cyclophosphamide, fludarabine and total body irradiation followed by an infusion of stem cell product prepared using the Miltenyi CliniMacs system for CD34 selection and a delayed T cell depletion add back as donor lymphocyte infusion at day 90. The subjects receiving allogeneic stem cell transplantation will have stem cell product prepared using Miltenyi CliniMacs system to determine the overall survival and non-relapse mortality at day +200.
Day 200

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Number of Participants With Relapse of Disease
Lasso di tempo: Day 200
Number of participants with relapse of disease by day 200
Day 200
Number of Participants Who Developed Acute GVHD Grades I, II, III, IV
Lasso di tempo: 100 days

Number of participants who developed Acute Graft vs Host Disease (GVHD) Grades I, II, III, IV as defined by CIMBTR criteria for Organ Stages of Acute GVHD.

Grades are defined as:

Grade I: Skin = Maculopapular rash< 25% of body surface area (BSA); Liver = Total Bilirubin 2-3 mg/dL; Lower GI = stool output/day is 500-999 mL/day.

Grade II: Skin = rash on 25-50 percent body surface area; Liver = Total Bilirubin 3.1-6.0 mg/dL; Lower GI = Diarrhea 1001-1500 mL/day.

Grade III: Skin = Rash on >50% of body surface; Liver = Total Bilirubin 6.1 - 15.0 mg/dL; Lower GI = Diarrhea > 1500 mL/day.

Grade IV: Skin = Generalized erythroderma plus bullous formation; Liver = Total Bilirubin >15 mg/dL; Lower GI = Severe abdominal pain with or without ileus.

Grade I GVHD is characterized as mild disease, grade II GVHD as moderate, grade III as severe, and grade IV life-threatening.
100 days
Number of Participants Who Developed Limited Chronic GVHD
Lasso di tempo: 36 months

Number of incidences of participants who developed Limited Chronic Graft vs Host Disease (GVHD).

Limited disease is characterized by localized skin involvement and/or evidence of hepatic dysfunction.

Limited disease is associated with a favorable outcome without systemic therapy, while extensive disease patients have an unfavorable outcome.
36 months
Number of Participants Who Develop Extensive GVHD
Lasso di tempo: 36 months

Number of participants with extensive, Chronic Graft vs Host Disease (GVHD). Extensive chronic GVHD is defined as GVHD occurring after day 100 that did not meet the definition of limited chronic GVHD.

Extensive disease presents either with generalized skin involvement, or with localized skin involvement or hepatic dysfunction plus at least one of the following:

  • Liver histology showing chronic progressive hepatitis, bridging necrosis, or cirrhosis
  • Involvement of the eye (Schirmer's test with less than 5 mm wetting) (see "Diagnosis and classification of Sjögren's syndrome")
  • Involvement of minor salivary glands or oral mucosa (as demonstrated on labial or mucosal biopsy specimen)
  • Involvement of any other target organ
36 months

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

National Heart, Lung, and Blood Institute (NHLBI)

Investigatori

  • Investigatore principale: Minocher M Battiwalla, M.D., National Heart, Lung, and Blood Institute (NHLBI)

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Pubblicazioni generali

Collegamenti utili

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio

1 settembre 2006

Completamento primario (Effettivo)

1 aprile 2014

Completamento dello studio (Effettivo)

1 aprile 2014

Date di iscrizione allo studio

Primo inviato

19 settembre 2006

Primo inviato che soddisfa i criteri di controllo qualità

19 settembre 2006

Primo Inserito (Stima)

20 settembre 2006

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

16 giugno 2021

Ultimo aggiornamento inviato che soddisfa i criteri QC

25 maggio 2021

Ultimo verificato

1 dicembre 2014

Maggiori informazioni

Termini relativi a questo studio

Parole chiave

Termini MeSH pertinenti aggiuntivi

Altri numeri di identificazione dello studio

  • 060248
  • 06-H-0248 (Altro identificatore: NIH National Heart, Lung and Blood Institute)

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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