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White Paper Explains Aspects of Testing From Purified Bulk Drug Substance to Sterile Liquid Final Drug Product

AGAWAM, Mass., Feb. 24 /PRNewswire/ -- Biopharmaceutical manufacturers, responsible for an extensive repertoire of products -- including recombinant proteins, monoclonal antibodies, and vaccines -- are faced with many aspects of testing specific to the type of product being assessed. A new whitepaper from Microtest Laboratories discusses the typical routine sampling and testing requirements associated with the aseptic processing of a biopharmaceutical from the perspective of a contract aseptic manufacturer and provider of contract manufacturing testing services.

The white paper, "Where and What to Test: From Purified Bulk Drug Substance to Sterile Liquid Final Drug Product," focuses on what many consider the most critical part of a biological drug product's manufacturing life cycle: going from the purified bulk drug substance ("PBDS") to the sterile final drug product ("FDP"). It is available for download at:

Specifically, the white paper discusses establishing the testing "where and when" (and in some instances the "why") for manufacturing formulation and fill/finish activities and how the approach is also applicable, for the most part, to small molecule drug products formulation and fill/finish.

In the white paper, the authors:

  • Warn to test only when necessary to reduce interventions.
  • Explain to test using methods that give data as quick as fittingly possible to condense processing times.
  • Discuss how to utilize a client's knowledge of the product, the contractor's knowledge of formulation and aseptic manufacturing to develop the most appropriate formulation and F/F process.

The white paper is authored by John Dobiecki, Vice President of Manufacturing Operations, and Alex Mello, Director of Project Management, Manufacturing, both of Microtest Laboratories (, a contract manufacturer and provider of contract manufacturing testing services.

To download the white paper, "Where and What to Test: From Purified Bulk Drug Substance to Sterile Liquid Final Drug Product," visit:

About Microtest

Microtest is a leader in aseptic processing contract manufacturing and contract manufacturing testing services for the medical device, pharmaceutical, and biotechnology industries. Based in Agawam, Massachusetts, USA, the company's expertise and flexible processes enhance product safety and security, accelerate time to market, and minimize supply chain disruption. For more information, visit or call 1-413-786-1680 or toll-free 1-800-631-1680.

Available Topic Expert(s): Steve Richter, Ph.D.

For information on the listed expert(s), click appropriate link.

SOURCE Microtest
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