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Study Evaluates Benefits of Atmosphere Control in Blisters

Companies partnered to (1) compare the efficacy of Activ-Blister packaging configurations with cold-form foil in maintaining the stability of a model tableted drug product and (2) compare results to an Accelerated Stability Assessment Program study.

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According to a recent pharma packaging market report by Future Market Insights, protective measures have gained centerstage with emphasis on “greater design flexibility, break-resistance, and improved barrier thresholds that continue to drive material advancements.”

The report notes blisters, vials, and ampoules will remain the next most preferred types of pharmaceutical packaging after bottles. Some companies have developed systems to make traditional blisters more protective using active packaging technologies.

Recently, FreeThink Technologies, Inc., Aptar CSP Technologies, and PCI Pharma Services collaborated on a research study comparing the efficacy of Activ-Blister packaging configurations with cold-form foil in maintaining the stability of a model tableted drug product. They also sought to:

  • Examine the role of starting water content in the efficacy of Activ-Blister packaging configurations.
  • Demonstrate that Accelerated Stability Assessment Program (ASAP) and Freethink’s ASAPprime software can accurately model packaging configurations incorporating molecular sieve and silica gel versions of Activ-Blister packaging and predict the shelf-life of a product using Activ-Blister technology.

ASAP study details

A model drug product was produced and an ASAP study was carried out in which the growth of the main degradant of the active ingredient was quantified. The data was modeled using ASAPprime software and included four different packaging configurations tested under four typical ICH storage conditions (Table 1, RH denotes relative humidity).

  • Cold-form foil blisters
  • Thermoform incorporating Activ-Blister technology with molecular sieve
  • Thermoform incorporating Activ-Blister technology with silica gel and
  • Thermoform blisters alone
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