Biotest Ag

Immunogen, Inc.

Gregor Schulz

Benjamin Daelken

Christoph Uherek

Christoph Bruecher

Frank Osterroth

Silke Aigner

Elmar Kraus

Matthias Germer

Andrea Wartenberg-Demand

Steffen Zeng

André Engling

Chantal Zuber

Thomas Haeder

Niklas Czeloth

Daniele Wolf

Sibylle Kaiser

Juergen Lindner

Gabriele Niemann

Holger Wallmeier

Marcus Gutscher

Katrin Bernoester

Martin Koenig

Markus Ruehle

Kirsten Völp

Michael Soldan

Anatoly Rudnev

Disclosed is a method and composition for treating a disease associated with target cells expressing CD138 in a multiple dose regimen. An immunoconjugate comprising an engineered targeting antibody targeting CD138 expressing cells and an effector molecule is administered in a multiple dose regimen. The multiple dose regimen comprises at least two doses and the aggregate dose administered within an active treatment cycle is an aggregate maximum tolerable dose (AMTD) or a fraction of the AMTD. The AMTD and/or said fraction exceeds the dose resulting in dose limiting toxicity (DLT) and/or exceeds the maximum tolerable dose (MTD) when the immunoconjugate is administered as a single dose, including as part of a multiple single dose regimen within said active treatment cycle.

Uses of immunoconjugates targeting CD138

Provided are methods of screening to identify molecules capable of binding to CD4 and capable of activating CD4+CD25+ regulatory T cells. Further provided are antibodies and antibody fragments capable of activating CD4+CD25+ regulatory T cells and methods and uses involving the antibodies and fragments thereof.

Agents for treating disease

The present invention provides pharmaceutical composition for treating an autoimmune disease comprising a pharmaceutically acceptable carrier and an agent capable of activating CD4+CD25+ regulatory T cells, wherein the composition is to be administered to a subject at most every 3 days.

Method for treating psoriasis

The present invention provides a pharmaceutical composition for treating an autoimmune disease comprising a pharmaceutically acceptable carrier and an agent capable of activating CD4+CD25+ regulatory T cells, wherein the composition is to be administered to a subject in a dose of the agent from 10 mg to 200 mg.

Agent for treating disease

Disclosed are immunoconjugates having in particular specificity for CD138 expressed on target cells and which display homogenous targeting. The immunoconjugates may be sterially hindered and/or contain a cleavable linker.

Immunoconjugates targeting CD138 and uses thereof

Disclosed are methods and treatment regimes that include the administration of immunconjugates targeting CD138 to combat diseases. The immunoconjugate is either used as the sole active ingredient, as part of a treatment regime or as part of an anticancer combination.

Disclosed is a human murine chimeric antibody targeting CD138 which substantially retains the antigen binding region of its murine counterpart. The engineered antibody displays improved binding affinities to the antigen and/or more homogenous binding to target cells relative to its murine counterpart. A constant region of the immunoglobulin heavy chain is preferably an IgG4 isotype constant region.

Agents targeting CD138 and uses thereof

Disclosed are methods, compositions and kits for improving targeting, in particular tumor targeting, of immunoconjugates. The method and composition relies on the sequestration of non-target cells that also express the antigen the immunoconjugate targets. Sequestration of those non-target cells in a variety of ways is disclosed. The methods, compositions and kits allow appropriate sequestration of non-target cells while maintaining a high degree of effectiveness of the immunoconjugates against target cells.

Method of decreasing cytotoxic side-effects and improving efficacy of  immunoconjugates

Growing community of inventors

Umkirch, Germany

Gregor Schulz