Patent application number | Description | Published |
20130338344 | PROTEIN PURIFICATION METHODS TO REDUCE ACIDIC SPECIES - The instant invention relates to the field of protein production and purification, and in particular to compositions and processes for controlling the amount of charge variants, aggregates, and fragments of a protein of interest, as well as host cell proteins, present in purified preparations by applying particular chromatography conditions during such protein purification. | 12-19-2013 |
20140072585 | NOVEL PURIFICATION OF ANTIBODIES USING HYDROPHOBIC INTERACTION CHROMATOGRAPHY - Disclosed herein are compositions and methods for purifying antibody products from a sample matrix. In particular, the present invention relates to compositions and methods for purifying antibody products employing hydrophobic interaction chromatography media. In certain embodiments, the invention provides a method for reducing process-related impurities (e.g., host cell proteins), as well as product-related substances, including molecular weight variants (e.g., aggregates and fragments of the antibody product). | 03-13-2014 |
20150110799 | LOW ACIDIC SPECIES COMPOSITIONS AND METHODS FOR PRODUCING AND USING THE SAME - The instant invention relates to low acidic species (AR) compositions comprising a protein, e.g., an antibody, or antigen-binding portion thereof, and methods, e.g., cell culture and/or protein purification methods, for producing such low AR compositions. Methods for using such compositions to treat a disorder, e.g., a disorder in which TNFα is detrimental, are also provided. | 04-23-2015 |
20150132801 | LOW ACIDIC SPECIES COMPOSITIONS AND METHODS FOR PRODUCING AND USING THE SAME - The instant invention relates to low acidic species (AR) compositions comprising a protein, e.g., an antibody, or antigen-binding portion thereof, and methods, e.g., cell culture and/or protein purification methods, for producing such low AR compositions. Methods for using such compositions to treat a disorder, e.g., a disorder in which TNFα is detrimental, are also provided. | 05-14-2015 |
20150140006 | LOW ACIDIC SPECIES COMPOSITIONS AND METHODS FOR PRODUCING AND USING THE SAME - The instant invention relates to low acidic species (AR) compositions comprising a protein, e.g., an antibody, or antigen-binding portion thereof, and methods, e.g., cell culture and/or protein purification methods, for producing such low AR compositions. Methods for using such compositions to treat a disorder, e.g., a disorder in which TNFα is detrimental, are also provided. | 05-21-2015 |
20150141623 | PROTEIN PURIFICATION METHODS TO REDUCE ACIDIC SPECIES - The instant invention relates to the field of protein production and purification, and in particular to compositions and processes for controlling the amount of charge variants, aggregates, and fragments of a protein of interest, as well as host cell proteins, present in purified preparations by applying particular chromatography conditions during such protein purification. | 05-21-2015 |
20150259410 | LOW ACIDIC SPECIES COMPOSITIONS AND METHODS FOR PRODUCING AND USING THE SAME - The instant invention relates to low acidic species (AR) compositions comprising a protein, e.g., an antibody, or antigen-binding portion thereof, and methods, e.g., cell culture and/or protein purification methods, for producing such low AR compositions. Methods for using such compositions to treat a disorder, e.g., a disorder in which TNFα is detrimental, are also provided. | 09-17-2015 |
20150299249 | PURIFICATION OF PROTEINS USING HYDROPHOBIC INTERACTION CHROMATOGRAPHY - The present invention is directed to methods for purifying a protein of interest, e.g., an antibody, from a sample comprising the protein of interest and at least one impurity, e.g., an aggregate, by employing a hydrophobic interaction chromatography (HIC) method that allows for binding of both the protein of interest and the at least one impurity under strong binding conditions. The present invention is based, at least in part, on the finding that both flow through and bind-elute techniques can be combined to achieve greater purification and recovery of a protein of interest, e.g., an antibody, under isocratic wash conditions and strong binding conditions. | 10-22-2015 |