Treatment of acute lymphoblastic leukemia

A technology for acute lymphoblastic leukemia, applied in chemical instruments and methods, anti-receptor/cell surface antigen/cell surface determinant immunoglobulin, immunoglobulin, etc., can solve the problem of poor efficacy in relapsed acute lymphoblastic leukemia question

Inactive Publication Date: 2011-10-05
AMGEN RES (MUNICH) GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the standard risk type (Hoelzer et al., Hematology Am. Standard-risk) patients are potentially placed at unnecessary risk by intensive and long-term treatment, and the efficacy of patients with relapsed acute lymphoblastic leukemia (ALL) is extremely poor, even if a second remission period is achieved

Method used

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  • Treatment of acute lymphoblastic leukemia
  • Treatment of acute lymphoblastic leukemia
  • Treatment of acute lymphoblastic leukemia

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Experimental program
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Embodiment

[0117] 1. The production, expression and cytotoxic activity of the CD19xCD3 bispecific single chain antibody are described in WO 99 / 54440. The corresponding amino acid and nucleic acid sequences of the CD19xCD3 bispecific single chain antibody are shown in SED ID NO.1 and 2, respectively. The VH and VL regions of the CD3-binding domain of the CD19xCD3 bispecific single-chain antibody are shown in SED ID NO.7-10, respectively, while the VH and VL regions of the CD19-binding domain of the CD19xCD3 bispecific Shown in SED ID NO.3-6. The corresponding CDR regions are shown in SED ID NO.11-22.

[0118] 2. The ongoing Phase I trial in patients with relapsed B-NHL showed that 60 μg / m 2 CD19xCD3 bispecific single chain antibody per day can obtain high response rate. Response duration was up to 12+ months (in several patients). at 15μg / m 2 Bone marrow infiltrating B-NHL cells were removed every day (Bargou et al., Science 2008).

[0119] 3. Based on these results, a phase II dose...

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Abstract

The present invention relates to a method for the treatment, amelioration or elimination of acute lymphoblastic leukemia (ALL), the method comprising the administration of a pharmaceutical composition comprising a CD19xCD3 bispecific single chain antibody construct to an adult patient in the need thereof.

Description

technical field [0001] The present invention relates to a method of treating, ameliorating or eliminating acute lymphoblastic leukemia (ALL), the method comprising administering to an adult patient in need thereof a pharmaceutical composition comprising a CD19xCD3 bispecific single chain antibody construct. Background technique [0002] Leukemia is a clonal neoplastic proliferation of immature hematopoietic cells characterized by abnormal or blocked differentiation. Leukemic cells accumulate in the bone marrow, eventually replacing most normal blood-forming cells. This leads to bone marrow failure, which results in anemia, bleeding and infection. Leukemic cells circulate into the blood and other tissues throughout the body (DeVita, Hellmann, Rosenberg. Cancer: principles and practice of oncology. Eight edition. Library of Congress Cataloging-in-Publication Data, ISBN 0-781-72387-6). Acute leukemias can be broadly classified as lymphocytic or myeloid leukemias, which are ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07K16/28C07K16/46
CPCC07K16/2809C07K16/468C07K16/2803A61K2039/505A61P35/02C07K2317/31
Inventor 格哈德·祖格迈尔伊夫林·德根哈德
Owner AMGEN RES (MUNICH) GMBH
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