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Low acidic species compositions and methods for producing and using the same using displacement chromatography

a technology of displacement chromatography and compositions, applied in the direction of antibody medical ingredients, tumor necrosis factor, peptides, etc., can solve the problems of charge variant reduction, achieve the effects of improving biological properties, improving therapeutic efficacy, and increasing cartilage tissue penetration

Active Publication Date: 2015-04-23
ABBVIE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent is about improving the process of making proteins, specifically antibodies or parts of them, by optimizing a technique called displacement chromatography. This improvement results in the production of proteins with low amounts of acidic species. These low acidic species have better therapeutic properties and can protect against arthritis and degeneration of cartilage tissue. They also have increased effectiveness in treating other conditions. Compared to non-low acidic species, they are better at fighting inflammation and promoting tissue regeneration.

Problems solved by technology

Because of their similar chemical characteristics to the antibody product molecules of interest, reduction of charge variants is a challenge in monoclonal antibody production.

Method used

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  • Low acidic species compositions and methods for producing and using the same using displacement chromatography
  • Low acidic species compositions and methods for producing and using the same using displacement chromatography
  • Low acidic species compositions and methods for producing and using the same using displacement chromatography

Examples

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example 1

Displacement Chromatography Performances of Expell SP1™ for Adalimumab on Poros XS Resin

[0431]Expell SP1™ is a low molecular weight quaternary ammonium salt that exhibited pronounced displacement effect for Adalimumab on Poros XS resin under selected sets of operating conditions. The feed material used for this set of experiments contained about 20-25% total AR, of which 2-5% was AR1 and 18-20% AR2. The results for this system are shown in the following sections.

[0432]A representative, desired displacement chromatographic profile is shown in FIG. 1a (solid line). In this experiment, the column was equilibrated with a pH 7 Tris / acetate buffer (6.4 mS / cm), loaded with a pre-adjusted protein A eluate feed (pH 7.5, 6.3 mS / cm, ˜3.4 g / L) to ˜40 g / L resin loading level, followed by EQ buffer wash and then displacement process using 1 mM Expell SP1™ in the pH 7 EQ buffer. The extended, square shape UV280 “elution” profile indicated establishing a proper displacement train and thus a degree ...

example 2

Displacement Chromatography Performance of Protamine Sulfate for Adalimumab on Poros XS Resin

[0443]Protamine sulfate, a cationic peptide with molecule weight ˜5.1 kD, was also evaluated as a cation exchange displacer for Adalimumab on Poros XS resin under various operating conditions. The feed material used for this set of experiments contained about 17-24% total AR, of which 3-6% was AR1 and 14-19% AR2. The results for this system are illustrated in the following sections.

[0444]FIG. 10 shows the distribution of charge variant species in sample fractions collected from a well established displacement process induced by protamine sulfate. In this experiment, the column was equilibrated with a pH 7.5 Tris / acetate buffer (5.6 mS / cm), loaded with a pre-adjusted protein A eluate feed (pH 7.5, 5.4 mS / cm, 5.2 g / L) to 39 g / L resin loading level, followed by a brief EQ buffer wash and then displacement process using 0.5 mM protamine sulfate dissolved in the pH 7.5 EQ buffer. Similar to the E...

example 3

Displacement Chromatography Performance of Expell SP1™ for mAb X on Poros XS Resin

[0450]The displacement separation performance of Expell SP1™ was assessed for mAb X on the Poros XS resin. A purified mAb X drug substance was used in this study, which contained about 16-17% acidic species and 12-14% basic species.

[0451]A representative set of mAb X charge variant separation profiles are shown in FIGS. 17 and 18. In this experiment, the Poros XS column was loaded with 40 g / L of mAb X at pH 6, 6 mS / cm Tris / Acetate binding condition, and was displaced using 1 mM Expell SP1™ in a pH 6, ˜6 mS / cm buffer. The specific conditions are detailed in Table 1. Pronounced enrichment and separation of acidic, main and basic species were achieved, with AR % reduced by 9.4% at 76% yield.

[0452]The effect of Expell SP1™ concentration on AR reduction for mAb X was measured in the pH 6 Tris / Acetate buffer. As shown in FIG. 19, increasing the Expell SP1™ concentration from 0.5 to 2 mM decreased the ΔAR % f...

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Abstract

The present invention relates to low acidic species (AR) compositions comprising a protein, e.g., an antibody, or antigen-binding portion thereof, and methods for producing such low AR compositions using displacement chromatography. Methods for using such compositions to treat a disorder, e.g., a disorder in which TNFα is detrimental, are also provided.

Description

RELATED APPLICATION INFORMATION[0001]This application is a continuation of U.S. application Ser. No. 14 / 077,576, filed on Nov. 12, 2013, which in turn claims priority to U.S. Provisional Application Ser. No. 61 / 892,833, filed on Oct. 18, 2013 and U.S. application Ser. No. 13 / 803,808, filed on Mar. 14, 2013, the entire contents of each of which are expressly incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]The production of compositions comprising proteins for biopharmaceutical applications involves the use of upstream process technologies (e.g., cell culture) and downstream process technologies (e.g., protein purification) that are known to produce proteins exhibiting varying levels of protein variants and impurities within the composition. Such protein variants include, but are not limited to, the presence of charge variants (e.g., basic variants and acidic species, including variants) and process-related impurities. For example, in monoclonal antibody (mAb) prepar...

Claims

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Application Information

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IPC IPC(8): C07K14/525
CPCC07K16/241C07K14/525C07K1/165A61K39/39591C07K16/065C07K2317/565
Inventor WANG, CHENCOPPOLA, GERMANOCHUMSAE, CHRIS
Owner ABBVIE INC
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