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As drug manufacturers aim for higher safety standards and enhanced patient care, controlling the drug product at the point-of-use in a hospital or clinical environment remains a significant challenge. The method of vial access often varies, increasing the risk of adverse patient outcomes, such as stopper cores or fragments entering the drug product. If injected, these fragments can lead to cardiovascular events and other complications. Several factors contribute to stopper coring and fragmentation in the field, primarily influenced by the technique of the practitioner and the properties of the elastomeric closure.

Sanjeev Seenath

July 09, 2025

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By Page McAndrew, PhD.

May 08, 2020

Considering the world of commercial transparent polymers, Daikyo Crystal Zenith® cyclic olefin polymer (COP) clearly stands out – having very good resistance to oxygen/water and compatibility with drug product (it comprises only carbon and hydrogen). Other transparent polymers may suffer limitations, in one or more ways. For example, poly(vinylidene chloride) has outstanding resistance to oxygen/water, but lacks compatibility; sterilization can result in release of HCl. For parenteral drug products, polymer-based containment/delivery systems have many advantages compared to glass.

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Films and Coatings

Pharmaceutical Packaging Components

Prefillable Systems

Self Injection Devices

Vial Containment Solutions

Washing and Sterilization

Reconstitution and Transfer Devices

Select a sub-category to view results

Analytical Lab Services

Contract Manufacturing

Fill-Finish

Regulatory Support

Select a sub-category to view results

Cell and Gene Therapy Packaging

Drug Development Process

Regulatory Challenges

Transitioning to Combination Products

Select a sub-category to view results

Corporate Development

ESG/Sustainability

One West Team (Employee Culture)

Our Culture of Giving (Philanthropy)

Research and Development