Virus Filters
Viral safety is a key consideration in biomanufacturing and is critical to assuring drug safety for patients. Virus filtration, or nanofiltration, separates viruses based on size and is an important component of viral safety assurance in downstream processing. Our trusted Viresolve® solutions are the standard setting products your work deserves.
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Related Product Resources
- Data Sheet: Viresolve® Pro
Proven viral safety solution designed to provide the highest levels of retention assurance and productivity.
- Product Guide: Viresolve® Pro Solution Prefilter Selection Guide
Membrane filtration is essential in biologic production, but impurities can hinder filter efficiency. Prefilters improve filter capacity and consistency by removing aggregates, especially in monoclonal antibody processes. The guide offers criteria for selecting prefilters to optimize Viresolve® Pro Device performance.
- Poster: Quality by Design (QbD) Approach to Virus Filtration Operations
Quality by Design (QbD) formalizes product quality by identifying critical process parameters (CPP) that influence key quality attributes (CQA), such as virus retention in filters. By understanding and controlling these parameters, QbD ensures consistent virus reduction performance in biomanufacturing.
- Brochure: The Science of Managing Change for Filters
In a world where change is inevitable, we minimize the impact to your critical manufacturing process by following a thoughtful, step-by-step approach to change controls.
- Brochure: Viral Safety Assurance: Prevent, Detect, Remove
Viral safety in biomanufacturing follows the "Prevent, Detect, Remove" approach. It includes selecting and treating raw materials to prevent viral contamination, testing for virus presence, and using purification and filtration methods downstream to eliminate viruses.
- App Note: How Baseline Studies Can Ensure Successful Virus Filtration Spiking Studies
Demonstrating the viral clearance capabilities of specific unit operations in downstream processing is a key component of regulatory submissions for biopharmaceuticals. While most virus filters provide robust viral clearance across a broad range of conditions, there are numerous artifacts that can limit throughput on filters such as the Viresolve® Pro Device
- Viresolve® Pro Solution Overview
Vmax™ Constant Pressure Test for Sizing Viral Clearance Filters
- Tech Note: Considerations for Use of the Viresolve® Pro Micro 40 Scaling Tool
The Viresolve® Pro Micro 40 Device, designed for small-scale virus filtration and viral clearance studies, offers robust parvovirus retention comparable to larger devices. Replacing the older Micro Device, the new kit (Catalogue Number VPMKVALNB9) includes 9 devices across 3 lots, suitable for process development and optimization.
- Application Note: Virus Retention Performance of Viresolve® Pro Devices under a Range of Processing Conditions
This document outlines virus filtration retention using Viresolve® Pro devices, adhering to the Quality by Design (QbD) terminology for improved process understanding. It consolidates virus retention results from Viresolve® Pro devices and aims to help biologics manufacturers understand the factors affecting device performance.
- Application Note: Multi-tier Approach to Assuring Virus Retention and Integrity of Viresolve® Pro Devices
Biopharmaceutical manufacturers must characterize key process steps for their ability to clear viruses. The entire manufacturing process is qualified to achieve a cumulative virus reduction factor, essential for documenting virus safety. A virus retentive filter is commonly used in these processes to ensure a robust and effective virus clearance step.
- Application Note: Scalability of the Viresolve® Pro Solution Using the Micro 40 Scaling Tool
The Viresolve® Pro Solution includes devices for virus filtration that scale linearly from process development to production. The Viresolve® Pro Micro 40, designed for smaller-scale evaluations, mirrors the construction of larger devices. This report highlights the consistent scalability and performance of the Viresolve® Pro devices across various scales.
- Article: Virus Filtration Process Development Optimization
The Key to a more efficient and cost-effective step.
- Flyer: Viresolve® Pro Solution: Robust Productive, Proven
The Viresolve® Pro Solution is tailored to meet specific needs, offering robust, productive, and proven virus filtration performance. It leads the market with exceptional retention assurance and productivity. Key features include high flux and capacity, consistently high virus retention, easy scalability, usage, and integrity testing. Additionally, it provides multilevel quality assurance and enhances process economics.
VIRESOLVE® PRO SOLUTION FOR DOWNSTREAM VIRUS FILTRATION
The Viresolve® Pro Solution provides a comprehensive flexible template for viral clearance in downstream processing of both monoclonal antibodies (mAbs) and recombinant proteins. This proven virus filtration solution delivers the highest levels of virus retention and productivity across a broad range of operating conditions.
Key benefits include:
- High mass capacity for improved process economics
- High flux for faster processing
- Consistent batch-to-batch performance
- Robust virus retention: ≥ 4 log removal of parvovirus
These disposable filters are easy to use and are offered in small-scale formats for process development and viral clearance studies, as well as larger formats for pilot and commercial manufacturing. All Viresolve® Pro Devices are 100% integrity tested in manufacturing, ensuring quality and consistency.
Prefilters for consistent filtration performance
Prefilters bind protein aggregates and other process impurities that limit the capacity of small-pore virus filters such as the Viresolve® Pro Device. Implementing prefilters improves the capacity and consistency of virus filtration operations. Our prefilter portfolio includes:
- Viresolve® Pro Shield: surface modified membrane filter with cation exchange adsorptive chemistry, offering caustic stability and low extractables
- Viresolve® Pro Shield H: surface modified membrane filter with mixed-mode adsorptive chemistry, offering caustic stability and low extractables
- Viresolve® Prefilter: adsorptive depth filter enabling mixed mode adsorptive and hydrophobic binding, offering autoclave compatibility
These disposable filters are easy to use and are offered in small-scale formats for process development and viral clearance studies, as well as larger formats for pilot and commercial manufacturing.
Quality-Standards-and-Documentation
Viresolve® filters are supported by the Emprove® Program which provides three types of dossiers to support different stages of development and manufacturing operations such as qualification, risk assessment, and process optimization. The dossiers consolidate comprehensive product-specific testing data, quality statements, and regulatory information in a readily available format.
The Viresolve® Pro Solution complements our broad portfolio of products and services, supported by teams with decades of technical expertise providing complete solutions to meet your viral safety needs.
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