Search results for "ALEMTUZUMAB"
showing 8 items of 28 documents
Differentiation on Biological Basis of Monoclonal B-Cell Lymphocytosis (MBL) From Chronic Lymphocytic Leukemia (CLL): Results of a Prospective GISL (…
2010
Abstract Abstract 1360 The arbitrary cut-off of 5000/μL chronic lymphocytic leukemia (CLL)-phenotype cells in peripheral blood is generally used to separate monoclonal B-cell lymphocytosis (MBL) from CLL. However, a major concern is the biological differentiation, if any, between MBL and CLL. We tried to address the issue therefore analyzing 261 Rai stage 0 patients enrolled in a Gruppo Italiano Studio Linfomi (GISL) prospective multicentre trial designed to validate biological parameters in early CLL as well as to assess the impact on clinical outcome of an early versus delayed policy of treatment with subcutaneous alemtuzumab in the high biological risk. In this cohort, biological charact…
Data of safety in a single-center alemtuzumab treated population
2020
Alemtuzumab is approved for highly active MS and, in Europe, can be employed after other disease-modifying treatments (DMTs) as an escalation approach or first therapeutic option. The occurrence of secondary autoimmune adverse events and infections differs depending on the employed approach.In the manuscript entitled “Alemtuzumab treatment of multiple sclerosis in real-world clinical practice: report from a single Italian center” by di Ioia M. and collaborators, efficacy and safety data of alemtuzumab were evaluated in a real-world MS population. The aim of the article is to describe in detail the unexpected serious adverse events which occurred in this cohort during and after the administr…
Preemptive Transfer of GMP-Grade CD8-Depleted Donor Lymphocytes after T-Cell Depleted Reduced-Intensity Transplantation.
2005
Abstract The combination of fludarabin (150mg/m2) / melphalan (140mg/m2) based reduced-intensity allo-transplantation (RIT) with in vivo T-cell depletion (TCD) by the anti-CD52 antibody alemtuzumab (100mg) has demonstrated efficient engraftment and reduced graft-versus-host disease (GVHD) (Kottaridis et al., Blood 2000). However, the slow lymphocyte recovery following this protocol is associated with reduced anti-infectious and antitumor immunity. In an attempt to improve immune-reconstitution after TCD / RIT, we investigated the early preemptive use of CD8-depleted donor lymphocyte infusions (DLIs). For CD8 depletion of donor leukaphereses, a new depletion protocol using clinical grade CD8…
Impact of DLI after In Vivo T-Cell-Depletion: Prophylactic CD8 Depleted or Preemptive CD3pos DLI?
2016
Abstract Introduction: The combination of reduced-intensity conditioning (RIC) with in vivo T-cell depletion by alemtuzumab prior to hematopoietic stem cell transplantation (HSCT) has demonstrated efficient engraftment and reduced graft-versus-host disease (GVHD). However, this regimen is associated with slow lymphocyte recovery leading to a delayed anti-infectious and anti-malignant immunity. DLI can be used to improve immune reconstitution. Here we investigate on the impact of different DLI: prophylactic CD8-depleted DLI vs preemptive non-depleted DLI. Methods: 256 patients with different hematologic malignancies were planned for treatment with DLI after allogeneic HSCT following reduced …
Impact of Prophylactic CD8-Depleted Donor-Lymphocyte Infusions After Allogeneic Hematopoietic Stem Cell Transplantation and Alemtuzumab Mediated T-Ce…
2011
Abstract Abstract 4109 We have previously demonstrated that the application of CD8-depleted donor-lymphocyte infusions (DLI) is feasible after reduced-intensity conditioning and in vivo T-cell depletion by alemtuzumab. DLI overcome slow lymphocyte recovery associated with alemtuzumab-administration and improve anti-infectious immunity and reliably convert a decreasing T-cell chimerism (Meyer et al. Blood 2007 & BMT 2010). Here we provide clinical follow up data of 117 patients with different hematological diseases and a median observation time of 1 year (range, 1–86 months) post hematopoietic stem cell transplantation (HSCT). The majority of patients either suffered from an acute leukem…
Follow Up On CD8-Depleted Donor-Lymphocyte Infusions After T-Cell Depleted Allogeneic Hemopoietic Stem Cell Transplantation
2013
We applied prophylactic CD8-depleted (CD8depl) donor lymphocyte infusions (DLI) in the setting of T-cell depleted reduced-intensity allogeneic hematopoietic stem cell transplantation (HSCT) in a phase I/II trial. T-cell depletion was carried out by the use of high-dose Alemtuzumab (100 mg or 60 mg for unrelated or sibling donor transplantation, respectively). We have demonstrated the feasibility of this approach after having treated 23 patients in this protocol (Meyer et al. Blood 2007). From 2004 to 2011, 134 patients with different hematologic diseases were included and followed for a median observation time of 1.5 years after transplantation (range, 1.5-9 years). Median age was 56 years …
Prior Treatment with Alemtuzumab Interferes with T-Cell Engraftment After Allogeneic Stem Cell Transplantation in Patients with Chronic Lymphocytic L…
2009
Abstract Abstract 3351 Poster Board III-239 Objectives: The majority of patients with chronic lymphocytic leukemia (CLL) who receive allogeneic hematopoietic cell transplantation (HCT) have fludarabine-refractory disease. The most active single agent in this disease stage is alemtuzumab. Alemtuzumab has a long half-life and induces profound T-cell depletion (TCD). Since TCD may mitigate graft-versus leukemia effects we evaluated „pre-conditioning“ with alemtuzumab followed by a washout period in order to minimize in vivo T-cell depletion of the graft in a phase II study (NCT 00337519). Methods: Patients received cytoreductive treatment with 3 × 30 mg alemtuzumab weekly prior to HCT. The sch…
Antiviral prophylaxis in patients with haematological malignancies and solid tumours: Guidelines of the Infectious Diseases Working Party (AGIHO) of …
2006
Morbidity and mortality in patients with malignancies are increased by viral infections. These mostly are reactivations of asymptomatic latent infections. They primarily concern clinical entities associated with the reactivation of herpes viruses, such as varicella zoster virus (VZV) and cytomegalovirus (CMV). Respiratory tract infections caused by influenza, parainfluenza or respiratory syncytial virus (RSV) are less common. Since reactivation of latent infections has major clinical impact, antiviral prophylaxis is an attractive approach for patients expecting immunosuppression. The main risk factor for clinically relevant reactivation is profound disruption of cellular immune response. Du…