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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Critical Process (CP)
A process that impacts a critical quality attribute of the intermediate, drug substance or drug product being manufactured and therefore should have established critical process parameters that can be monitored or controlled to ensure that the process produces the desired quality.

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Tailgate Sample
Representative and random samples of the lot taken by the manufacturer during the packing process for the use of incoming inspection purposes. (TR76)

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Supplier
The entity with whom the agreement of the quality level is made and the transaction of purchase is made; the last link in the chain of manufacturers and distributors. The supplier may be the manufacturer.(TR76)

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Primary Packaging Component
A component that is (or may be) in direct contact with the dosage form. Some examples of primary components are glass vials, syringe barrels, bottles, rubber closures, and container or closure liners. (TR39)

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Pressure
Force applied per unit area, usually expressed as psi, mbar, kPa or kg/cm2. (TR45) (TR26)

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Primary Pack
Packaging that protects the inoculated carrier from damage and contamination without preventing penetration of the sterilizing agent(s). (TR51)

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Potential Drug Shortage
A potential drug shortage is described as the occurrence of internal or external situations (single or in a combination of both), which could result in an interruption of supplies of a medicinal product, if not properly addressed and controlled. (TR68)

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Preparation Site
The location where extemporaneous preparations of Clinical Trial Materials (CTM) are made. (TR63)

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Practice of Pharmacy
The interpretation, evaluation and implementation of medical orders which may include the administering, preparing, compounding, preserving, and/or the dispensing of drugs, medicines and therapeutic devices on the basis of prescriptions, clinical protocol or other legal authority. Note: Many localities have broader definitions describing very specific activities and responsibilities that further defines the practice of pharmacy. (TR63)

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Temperature Controlled
The sequence of transportation events, from the manufacturer of the API up to the receipt of the final packaged product by the end user, which maintains temperature sensitive products within approved temperature specifications. Maintaining temperature control during these transportation events assures that product quality is maintained. (TR39)

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Temperature-Controlled Distribution
Material handling and movement of goods from an origin site to a receiving site, where the goods are kept within a specified temperature range using active and/or passive systems. (TR58)

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Temperature Sensitive Products
Products whose quality may be adversely affected by temperature extremes (e.g., frozen, refrigerated, and certain controlled room temperature products). (TR39)

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Temperature-Controlled Ocean Container
An actively cooled metal box, most commonly 20 or 40 foot long which can be easily transferred between different modes of transportation, such as ships, trains and trucks. Sometimes it is called a reefer container or intermodal container. (TR58)

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Temperature-Controlled Ocean Container (Reefer, Intermodal Container)
An actively cooled metal box (commonly 20 or 40 ft long) that can be easily transferred between different modes of transportation, such as between ships, trains, and trucks. (TR64)

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Temperature Profile
Anticipated ambient temperature variation and duration to which product may be exposed during transportation. (TR39)

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Value Stream Map
A tool used to document, analyze, understand and improve the flow of information or materials required to produce a product or service for a customer as it makes its way through the value stream. (TR68)

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Transport Service Provider
Contracting party who mediates or executes the transportation of medicinal products on behalf of the shipper. (TR39)

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Temperature-Controlled Truck or Trailer
A cargo box attached to a truck chasse or as a trailer pulled by a truck that is equipped with a temperature control unit (TCU) to provide active cooling or heating control inside the box. Refrigerated trucks or trailers are sometimes referred to as “reefers”. The temperature control units are typically powered by an integrated engine or gen-set and not the engine that is used to propel the truck. (TR58) A cargo box attached to a truck chassis or consisting of a trailer pulled by a truck that is equipped with a TCU to provide active cooling or heating control inside the box (refrigerated trucks or trailers are sometimes referred to as “reefers”). (TR64)

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Transportation Service Providers (TSP)
Companies that physically transport the product. (TR52)

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Tertiary Packaging Component
A component that is used to assemble secondary or primary packages in the form of the basic transportation unit and to provide protection against mechanical impact. Examples are corrugated cardboard boxes, but corresponding plastic boxes/containers are also used. (TR39)

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Transportation Study
Study performed to generate data to evaluate the effect of temperature variation on the product during transportation on product quality. Other test, such as vibration, pressure, and drop tests, may be considered. (TR39)

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Thermal Mass
The mass of material present multiplied by that material’s specific heat capacity. (TR64)

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The Last Mile
This is a multidimensional cross-industry term that defines a point in the supply chain where the product or service directly faces the customer, end user or patient. (TR46)

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Stakeholder(s)
Any individual, group or organization that can affect, be affected by or perceive itself to be affected by a risk. Decision makers might also be stakeholders. For the purposes of this guideline, the primary stakeholders are the patient, health-care professional, regulatory authority, and industry (ICH Q9). (TR54) (TR54-2) Any individual, group, or organization that can affect, be affected by, or perceive itself to be af­fected by a risk. Decision makers might also be stakeholders. (TR54-5)

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Slip Sheest
Plastic sheets often made of polyethylene and sometimes used in distribution/transportation warehouse and shipping systems to separate pallet loads of product. Slip sheets may be important due to the ability of polyethylene to concentrate TBA in proximity to product. (TR55)

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Storage Temperature
The temperature range listed on the medicinal product label specified for long term storage. (TR39)

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Storage
The retention of pharmaceutical products in a location such as a warehouse; the storing of pharmaceutical products up until their point of use. (TR53)

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Supply Chain
The process by which a drug product is shipped and distributed from the manufacturer to the end user. (TR39)

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Store
A store is a temperature-controlled and / or temperature- monitored warehouse, chamber, or cabinet where pharmaceutical products are stored. (TR58)

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Ready-To-Use
A marketing term often used to describe the benefits of single-use technology or SUS. This designation has no regulatory or scientific basis supporting suitability for use and the end user is responsible to evaluate and determine if appropriate quality requirements are met for their application. (TR66) Washed and sterilized components supplied in a package suitable for transfer into an aseptic processing area and used with sterile injectable products without further processing. (TR85)

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Reefer Container
Refrigerated shipping container for transporting perishables, having its own stand-alone (selfpowered) cooling system. (TR54-2)

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Resistance Temperature Detector(s) (RTDs)
Resistance temperature detectors are temperature sensors in which the electrical resistance in the element increases with increases in temperature. This electrical resistance is then translated into a temperature value (expressed as a resistance versus temperature curve). (TR48)

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Retailer
A “retailer” buys goods or products in large quantities from manufacturers or importers, either directly or through a wholesaler, and then sells smaller quantities to the end-user. Examples of retailers that sell pharmaceutical products are pharmacies and hospitals. (TR58)

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Reverse Logistics
The process of planning, implementing and controlling the efficient, cost-effective flow of raw materials, in-process inventory, finished goods and related information from the point of consumption to the point of origin for the purpose of recapturing value or proper disposal. (TR46)

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Shelf Life (also referred to as expiration dating period)
The time period during which a drug product is expected to remain within the approved shelf life specification, provided that it is stored under the conditions defined on the container label. (TR63)

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Shipping Lane
An established route of transportation between a specific point of origin to a specific destination. More defined routes will consistently use the same combination and types of transportation vehicles and transfer procedures, but this may not be observed through all shipping lanes throughout the last mile. (TR46) Lane described by origin, transportation node(s) and destination in combination with the used transport mode(s) (truck, aircraft, etc.). (TR58)

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Secondary Packaging Component
A component that is not nor will not be in direct contact with the drug product (e.g., vial seals, overwraps, container labels). The purpose of secondary packaging is to identify, protect, market, and communicate information about the product. Examples of secondary packaging include labels, cartons/folding boxes, and leaflets. (TR39)

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Shipping
The transit of any material by land, sea, or air from one site to another. This may include intraplant movements. (TR39)

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Shipper
An individual or company who tenders products for transportation. (TR39) The person or organization responsible for arranging transportation of goods with carriers and/or freight forwarders. (TR58)

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Shipping Container
A standardized reusable metal box used for safe, efficient and secure storage and movement of materials and products within a global containerized intermodal freight transport system. Intermodal implies that the container can be moved from one mode of transport to another without unloading and reloading. They are the main type of equipment used in intermodal transport, particularly when one of the modes of transportation is by ship. They can also be referred to as ISO containers because the dimensions have been defined by ISO. Other types of transportation containers can include truck trailers. (TR55)

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Risk-based Triage for Drug Shortages
A process of assessing and assigning priorities for managing drug shortage risks based on criticality and impact to patients (TR68)

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Radio Frequency Identification (RFID)
Is an automatic technique for identifying objects using radio frequency transmissions. An RFID system generally consists of a tag, reader, antenna, and software. An RFID tag is simply another type of data carrier. Essentially, tags compromise a semiconductor chip with memory, processing capability and a transmitter connected to an antenna (aerial). (TR46) RFID is a method commonly used in retail of single directional data transfer from an identification tag (e.g., a data logger) to a stationary gateway or scanner; it is not to be confused with real-time monitoring. (TR58)

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Raw Materials
Starting materials, reagents, and solvents used in the production of intermediates or APIs/drug substance. (TR54-4) (TR83)

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Packout
Insulated container that uses refrigerant to keep a product within a specified temperature and time range; see passive system. (TR58)

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Pallets
Pallets are flat transportation structures that are used in the efficient shipping, warehousing and in-plant distribution of goods. A loaded pallet may be moved using a fork lift or pallet jack. They are usually 48 x 40 inches in dimension. They are most commonly constructed of wood but may be plastic, metal or even paper. (TR55)

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Over-the-Counter (OTC) Drug Products
Drug products sold in drug stores directly to customers without a physician’s prescription. (TR67)

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Organohalogens
The major organohalogens or organic compounds containing chlorine, bromine or iodine of interest are halophenols and haloanisoles, especially 2,4,6 tricholorophenol (TCP), 2, 4, 6 tribromophenols (TBPs), 2, 4, 6 trichloroanisole (TCA), and 2, 4, 6 tribromoanisole (TBA). (TR55)

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Peltier Device
Peltier devices are small, solid-state ceramic and doped-semiconductor sandwiches designed to function in small cooling and heating applications. The devices can be “stacked” for greater cooling/heating but do draw considerable power. The advantage of these devices is that there are no moving parts, no maintenance, no refrigerant gasses, no noise, and no vibration. Disadvantages may include: high cost, fragility, and scalability, in addition to the aforementioned high power draw. (TR46)

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Passive System
Systems without active temperature control. Refrigerants may be, for example, gel packs, dry ice, water, and/or ice. Examples include insulated containers, packouts and cool boxes/containers. (TR58) Systems without active temperature control (e.g., insulated containers with or without refrigerants). (TR39)

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Planning Bill of Materials (BOM)
A complete list of the raw material (chemicals, media, powders, resin, etc.) and consumables/components (filters, bags, tubing, containers, etc.) that are required to manufacture the product. (TR65)

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