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The Pharmaceutical Capping Process - Correlation between Residual Seal Force, Torque Moment, and Flip-off Removal Force

Mathaes, Roman and Mahler, Hanns-Christian and Vorgrimler, Lothar and Steinberg, Henrik and Dreher, Sascha and Roggo, Yves and Nieto, Alejandra and Brwon, Helen and Roehl, Holger and Adler, Michael and Luemkemann, Joerg and Huwyler, Jörg and Lam, Philippe and Stauch, Oliver and Mohl, Silke and Streubel, Alexander. (2016) The Pharmaceutical Capping Process - Correlation between Residual Seal Force, Torque Moment, and Flip-off Removal Force. PDA Journal of Pharmaceutical Science and Technology, 70 (3). pp. 218-229.

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Official URL: http://edoc.unibas.ch/44268/

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Abstract

The majority of parenteral drug products are manufactured in glass vials with an elastomeric rubber stopper and a crimp cap. The vial sealing process is a critical process step during fill-and-finish operations, as it defines the seal quality of the final product. Different critical capping process parameters can affect rubber stopper defects, rubber stopper compression, container closure integrity, and also crimp cap quality. A sufficiently high force to remove the flip-off button prior to usage is required to ensure quality of the drug product unit by the flip-off button during storage, transportation, and until opening and use. Therefore, the final product is 100% visually inspected for lose or defective crimp caps, which is subjective as well as time- and labor-intensive. In this study, we sealed several container closure system configurations with different capping equipment settings (with corresponding residual seal force values) to investigate the torque moment required to turn the crimp cap. A correlation between torque moment and residual seal force has been established. The torque moment was found to be influenced by several parameters, including diameter of the vial head, type of rubber stopper (serum or lyophilized) and type of crimp cap (West(®) or Datwyler(®)). In addition, we measured the force required to remove the flip-off button of a sealed container closure system. The capping process had no influence on measured forces; however, it was possible to detect partially crimped vials. In conclusion, a controlled capping process with a defined target residual seal force range leads to a tight crimp cap on a sealed container closure system and can ensure product quality.
LAY ABSTRACT:
The majority of parenteral drug products are manufactured in a glass vials with an elastomeric rubber stopper and a crimp cap. The vial sealing process is a critical process step during fill-and-finish operations, as it defines the seal quality of the final product. An adequate force to remove the flip-off button prior to usage is required to ensure product quality during storage and transportation until use. In addition, the complete crimp cap needs to be fixed in a tight position on the vial. In this study, we investigated the torque moment required to turn the crimp cap and the force required to remove the flip-off button of container closure system sealed with different capping equipment process parameters (having different residual seal force values).
Faculties and Departments:05 Faculty of Science > Departement Pharmazeutische Wissenschaften > Pharmazie > Pharmazeutische Technologie (Huwyler)
UniBasel Contributors:Huwyler, Jörg
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Parenteral Drug Association (PDA)
ISSN:1079-7440
e-ISSN:1948-2124
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:31 Oct 2017 10:43
Deposited On:31 Oct 2017 10:43

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