Cited by 48Chronic Lymphocytic Leukemia ResearchLymphoma Diagnosis and TreatmentHematopoietic Stem Cell Transplantation

Immunotherapy of recurrent B-cell malignancies after allo-SCT with Bi20 (FBTA05), a trifunctional anti-CD3 × anti-CD20 antibody and donor lymphocyte infusion

Buhmann, R, Simoes, B, Stanglmaier, M, Yang, T, Faltin, M, Bund, D, Lindhofer, H, Kolb, H-J·2009·Bone Marrow Transplantation

Abstract

Donor lymphocyte infusions (DLIs) after allo-SCT displayed limited use in CLL and highly malignant non-Hodgkin's lymphoma (NHL). Here we studied whether Bi20 (FBTA05), a novel trifunctional bispecific antibody targeting CD20 on lymphoma cells and CD3 on T cells, could induce GVL responses in combination with DLI or mobilized PBSCT after allogeneic transplantation in these diseases. Six patients (three cases with p53-mutated CLL and three with high-grade NHL (HG-NHL)) refractory to standard therapy were treated with escalating doses of Bi20 (range 10-2000 microg) followed by DLI or SCT. Thereby, all CLL patients showed a prompt but transient clinical and hematological response. In one patient with HG-NHL, we observed a halt in progression for almost 4 months. Side effects (fever, chills and bone pain) were tolerable and appeared at antibody dose levels between 40 and 200 microg. The cytokine profile was characterized by transient increases of IL-6, IL-8 and IL-10. Neither human anti-mouse antibodies nor GVHD developed, allowing repeated treatment courses. In summary, the trifunctional antibody Bi20 induced prompt antitumor responses in extensively pretreated, p53-mutated alemtuzumab and rituximab refractory patients indicating its therapeutic potential.

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Crossref · 10.1038/bmt.2008.323

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  • In a pilot study, all alemtuzumab- and rituximab-refractory patients with recurrent B cell malignancies, CLL or highly malignant lymphoma after allo-stem cell transplantation showed a prompt but transient clinical and hematological response to Bi20.

    “In a pilot study, Bi20 was administered to six patients with recurrent B cell malignancies, CLL or highly malignant lymphoma after allo-stem cell transplantation.All alemtuzumab-and rituximab-refractory patients showed a prompt but transient clinical and hematological response, highlighting the high therapeutic potential of this triomab.”

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Authors
Buhmann, R., Simoes, B., Stanglmaier, M., Yang, T., Faltin, M., Bund, D., Lindhofer, H., & Kolb, H.-J.
Affiliations
  • Ludwig-Maximilians-Universität München (DE)
  • Helmholtz Munich (DE)
Corresponding author
Buhmann, R
ORCID
Yang, T
Venue
Bone Marrow Transplantation
Published
2008-10-13
Volume
43
Issue
5
Pages
383-397
ISSN
  • 0268-3369 (ISSN-L)
  • 1476-5365
OpenAlex
W2025130837
Cited by
48
References
32
Citations by year
2025: 1 · 2023: 1 · 2022: 1 · 2020: 2 · 2019: 1 · 2017: 4 · 2015: 4 · 2014: 8 · 2013: 7 · 2012: 2
FWCI
2.60
Type
journal article
Language
en
Open access
closed
Locations
  • Bone Marrow Transplantation (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Leuka
  • Deutscher Akademischer Austauschdienst
Topics
  • Health Sciences › Medicine › Genetics › Chronic Lymphocytic Leukemia Research
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Lymphoma Diagnosis and Treatment
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
Keywords
donor lymphocyte infusion, allogeneic stem cell transplantation, chronic lymphocytic leukemia, high-grade non-Hodgkin's lymphoma, graft-versus-leukemia effect, cytokine profile, rituximab-refractory disease
MeSH terms
Adult, Female, Graft vs Host Disease, Humans, Male, Middle Aged, Pilot Projects, Recurrence, Tissue Donors, Transplantation, Homologous, Leukemia, Lymphocytic, Chronic, B-Cell, Lymphoma, Large B-Cell, Diffuse, Antibodies, Bispecific, Hematopoietic Stem Cell Transplantation, Adoptive Transfer

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