Merus N.v.

Paulus Johannes Tacken

Ton Logtenberg

Cornelis Adriaan De Kruif

Mark Throsby

Cecilia Anna Wilhelmina Geuijen

Rinse Klooster

The disclosure provides means and methods for interfering with Programmed Cell Death 1 protein (PD-1) and T-cell immunoglobulin and mucin-domain containing-3 (TIM-3) mediated inhibition in a PD-1 and/or TIM-3 positive cell. A method may comprise contacting said cell with an antibody or a functional part, derivative and/or analogue thereof that comprises a variable domain that can bind to an extracellular part of PD-1 and a variable domain that can bind to an extracellular part of TIM-3, thereby inhibiting PD-1 and/or TIM-3 mediated activity in said cell. The invention also provides antibodies or variants thereof that comprises a variable domain that can bind to an extracellular part of PD-1 and a variable domain that can bind to an extracellular part of TIM-3.

Bispecific anti PD1-anti TIM3 antibodies

The invention provides means and methods for interfering with Programmed Cell Death 1 protein (PD-1) and Lymphocyte activation 3 (LAG 3) mediated inhibition in a PD-1 and/or LAG3 positive cell. A method may comprise contacting said cell with an antibody or a functional part, derivative and/or analogue thereof that comprises a variable domain that can bind to an extracellular part of PD-1 and a variable domain that can bind to an extracellular part of LAG3, thereby inhibiting PD-1 and/or LAG3 mediated activity in said cell. The invention also provides antibodies or variants thereof that comprises a variable domain that can bind to an extracellular part of PD-1 and a variable domain that can bind to an extracellular part of LAG3.

Antibodies that modulate a biological activity expressed by a cell

The invention provides means and methods of stimulating activity of a member of the TNF receptor superfamily on a cell. The invention also provides binding molecules such as antibodies that comprises at least two antigen binding sites, wherein a first antigen binding site can bind an extracellular part of CD137 and a second antigen binding site can bind an extracellular part of PD-L1.

Binding molecules that bind CD137 and PD-L1

The invention provides means and methods for inhibiting a biological activity of cells. In one embodiment the invention is concerned with a method of inhibiting a biological activity in a first or second cell mediated by the binding of two membrane proteins that are binding partners for each other. The mentioned biological activity is inhibited by providing the cells with an antibody or antibody like molecule that can bind to each of the mentioned binding partners and the binding blocks the binding of the two binding partners thereby inhibiting the mentioned biological activity.

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Utrecht, Netherlands

Paulus Johannes Tacken