An RFID tag is just one of the security features that can be built into vial packaging for parenteral products. A 13.56-MHz
tag measuring 9 mm in diameter is incorporated into standard 13- or 20-mm polypropylene seals in a co-injection molding process.
Then, tagged seals are inserted into formed aluminum shells and heat staked in place. Each assembled shell is read to verify
tag viability before being packed for shipment. The RFID-enabled seals serve as a drop-in replacement for standard seals and
can be configured to be read-only; write-once, read-many; or write-many–read-many (9-mm 13.56-MHz tag, TAGSYS; "West Spectra"
vial-closure system, West Pharmaceutical Services).
The "FAST Tag" software exchanges information with the host system.
Data capture and storage
Many tag makers also supply readers (smart label readers, Symbol Technologies, TAGSYS, Alien Technology).
Encoding tags and collecting data from tags typically is controlled by specially designed software. The system on the Viagra
line, for example, encodes tags, records EPCs, manages rejects, links bar-code and RFID data, and stores information in a
database ("TIPS Serialized Product Tracking" vision system and software, SYSTECH International, Cranbury, NJ).
Similar software identifies items to be tagged, sends data to the encoding equipment, triggers tag application, verifies tag
readability and code accuracy, and transmits data about tagged items back to the host system. It's typically supplied as part
of an optimized turnkey RFID solution that includes assistance with tag selection and placement as well as hardware selection
and installation ("FAST Tag" software, Accu-Sort Systems, Inc., Telford, PA).
Establishing e-pedigree systems will require unprecedented collaboration between supply-chain partners because success depends
on sharing the data captured at each point in a drug's trip from manufacturer to consumer.
Collaboration will necessitate agreements about who owns the data, where it resides, who has access, and how access occurs.
Cooperation also requires some degree of interoperability between systems. In other words, each system must be able to send
and receive pedigree data securely in a format it and its supply-chain partners can use.
Like all RFID implementations, embarking on an e-pedigree program using item-level tagging should spur companies to undertake
a full needs analysis to define requirements and goals. This process should consider both current and future needs. Once this
analysis is complete, pretesting in a laboratory setting helps optimize conditions for the pilot-project phase. Rollout should
occur only after rigorous testing during the pilot and then proceed in a phased fashion.
A successful e-pedigree program will involve a considerable amount of effort and expense. Although compliance with pedigree
requirements is mandatory, numerous benefits will result in enhanced patient safety, stronger consumer confidence, reduced
exposure in recall situations, and, of course, a higher level of supply-chain security that simplifies product authentication,
discourages diversion, and minimizes the chance of counterfeit product being dispensed.