PDA Technical Glossary

PDA Technical Glossary

PDA Technical Reports are highly valued membership benefits because they offer expert guidance and opinions on important scientific and regulatory topics and are used as essential references by industry and regulatory authorities around the world. These reports include terms which explain the material and enhance the reader’s understanding.

The database presented here includes the glossary terms from all current technical reports. The database is searchable by keyword, topic, or by technical report. Each definition provided includes a link to the source technical report within the  PDA Technical Report Portal.

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Control Strategy
A planned set of controls, derived from current product and process understanding, which ensures process performance and product quality. The controls can include parameters and attributes related to drug substance and drug product materials and components, facility and equipment operating conditions, in-process controls, finished product specifications, and the associated methods and frequency of monitoring and control. (TR 54) (TR 60) (TR 54-5) (TR56)
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Critical Process Parameter (CPP) or Critical Operational Parameter
A process parameter whose variability has an impact on a critical quality attribute and therefore should be monitored or controlled to ensure the process produces the desired quality. (TR54) (TR54-4) (TR56) (TR54-5) (TR60-2) (TR5 6) (TR 81) An input process parameter that should be controlled within a meaningful operating range to ensure that drug substance critical quality attributes meet their specifications. Although parameters with wide operating ranges may also impact product quality, they are generally easily controlled and not as likely to result in excursions that impact quality and are therefore low risk of occurrence. (TR60-3)
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Current Good Manufacturing Practices (CGMPs)
Practices and systems that are required to be followed for pharmaceutical manufacturing to ensure that the products produced meet specific requirements for identity, strength, quality, and purity. (TR54) Refers to the Current Good Manufacturing Practice regulations enforced by the FDA and as described in the ICH guidance (ICH Q7 and WHO GMP, for API manufacturing). Current GMP provides for systems that assure proper design, monitoring, and control of manufactur­ing processes and facilities. Adherence to cGMP regulations assures the identity, strength, quality, and purity of drug products by requiring that manufacturers of medications adequately control manufacturing operations. (TR56)
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Process Validation
The documented evidence that the process, operated within established parameters, can perform effectively and reproducibly to produce an intermediate or API (drug substance) meeting its predetermined specifications and quality attributes. (TR14) (TR42) Establishing documented evidence which provides a high degree of assurance that a specific process will consistently produce a product meeting its predetermined specifications and quality attributes. (TR44) The collection and evaluation of data, from the process design stage through commercial production, which establishes scientific evidence that a process is capable of consistently delivering quality products. (TR54) (TR57) (TR74) The collection and evaluation of data, from the pro­cess design stage through commercial production, which establishes scientific evidence that a process is capable of consistently delivering quality product. The documented evidence that the process, op­erated within established parameters, can per­form effectively and reproducibly to produce a medicinal product meeting its predetermined specifications and quality attributes, as described in EMA, EU GMP, Part 1, Annex 15, drug/me­dicinal product. (TR56) EMA: The documented evidence that the process, op­erated within established parameters, can per­form effectively and reproducibly to produce a medicinal product meeting its predetermined specifications and quality attributes. US FDA: The collection and evaluation of data, from the process design stage through commercial pro­duction, which establishes scientific evidence that a process is capable of consistently deliver­ing quality products. (TR60-2) The documented evidence that the process, operated within established parameters, can perform effectively and reproducibly to produce an intermediate or drug substance meeting its predetermined specifications and quality attributes (1, 17). (TR60-3)
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