Abstract
The pharmaceutical industry has been confronted with new and complex challenges, particularly with regard to the aseptic filling of parenterals, including monoclonal antibodies and ophthalmologic drugs designed for intravitreal injections, which often require fill volumes <200 µL. In addition to intravitreal administration, microliter doses may be required for applications using highly concentrated formulations and cell and gene therapies. Many of these therapies have either a narrow or unknown therapeutic window, requiring a high degree of accuracy and precision for the filling system. This study aimed to investigate the applicability of a linear peristaltic pump as a novel and innovative filling system for the low-volume filling of parenterals, compared with the state-of-the-art filling systems that are currently used during pharmaceutical production. We characterized the working principle of the pump and evaluated its accuracy for a target fill volume of 50 µL. Our results demonstrated that the linear peristaltic pump can be used for fill volumes ranging from 12 to 420 µL. A deeper investigation was performed with the fill volume of 50 µL, because it represents a typical clinical dose of an intravitreal application. The filling accuracy was stable over an 8 h operation time, with a standard deviation of +/−4.4%. We conclude that this technology may allow the pharmaceutical industry to overcome challenges associated with the reliable filling of volumes <1 mL during aseptic filling. This technology has the potential to change aseptic filling methods by broadening the range of potential fill volumes while maintaining accuracy and precision, even when performing microliter fills.
- © PDA, Inc. 2021
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