Abstract: The invention relates to processes for the preparation of highly concentrated, liquid formulations comprising at least one anti-EGFR antibody and/or one of its variants and/or fragments, in particular monoclonal antibodies against the EGF receptor, particularly preferably of Mab C225 (cetuximab) and Mab h425 (EMD 72000), by ultrafiltration. The invention furthermore relates to highly concentrated, liquid formulations of anti-EGFR antibodies, in particular of monoclonal antibodies against the EGF receptor, particularly preferably Mab C225 (cetuximab) and Mab h425 (EMD 72000) and/or variants and/or fragments thereof, characterised in that the highly concentrated, liquid formulations have a content of anti-EGFR antibodies of 10-250, preferably 50-180 mg/ml, particularly preferably of 100-150 mg/ml, and to the use thereof.

Abstract: The invention relates to solid forms of antibodies against the EGF receptor, in particular precipitates and crystals of monoclonal antibodies against the EGF receptor, particularly preferably of Mab C225 (cetuximab) and Mab h425 (EMD 72000), which result in biologically active antibody protein through dissolution or suspension in aqueous medium, obtainable by precipitation of the antibody and/or one of its variants and/or fragments dissolved or suspended in aqueous medium by means of a precipitation reagent. The invention furthermore relates to pharmaceutical preparations comprising at least one solid form of above-mentioned antibodies in precipitated non-crystalline, precipitated crystalline or in soluble or suspended form, and optionally excipients and/or adjuvants and/or further pharmaceutical active ingredients, and to a process for the preparation of solid forms of anti-EGFR antibodies according to the invention.

Abstract: The invention relates to processes for the preparation of highly concentrated, liquid formulations comprising at least one anti-EGFR antibody and/or one of its variants and/or fragments, in particular monoclonal antibodies against the EGF receptor, particularly preferably of Mab C225 (cetuximab) and Mab h425 (EMD 72000), by ultrafiltration. The invention furthermore relates to highly concentrated, liquid formulations of anti-EGFR antibodies, in particular of monoclonal antibodies against the EGF receptor, particularly preferably Mab C225 (cetuximab) and Mab h425 (EMD 72000) and/or variants and/or fragments thereof, characterised in that the highly concentrated, liquid formulations have a content of anti-EGFR antibodies of 10-250, preferably 50-180 mg/ml, particularly preferably of 100-150 mg/ml, and to the use thereof.

Abstract: The invention relates to solid forms of antibodies against the EGF receptor, in particular precipitates and crystals of monoclonal antibodies against the EGF receptor, particularly preferably of Mab C225 (cetuximab) and Mab h425 (EMD 72000), which result in biologically active antibody protein through dissolution or suspension in aqueous medium, obtainable by precipitation of the antibody and/or one of its variants and/or fragments dissolved or suspended in aqueous medium by means of a precipitation reagent. The invention furthermore relates to pharmaceutical preparations comprising at least one solid form of above-mentioned antibodies in precipitated non-crystalline, precipitated crystalline or in soluble or suspended form, and optionally excipients and/or adjuvants and/or further pharmaceutical active ingredients, and to a process for the preparation of solid forms of anti-EGFR antibodies according to the invention.