Pharmaceutical development, quality control, stability and compatibility of a parenteral lyophilized formulation of the investigational polymer-conjugated platinum antineoplastic agent AP5346.

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Van der Schoot SC, Nuijen B, Sood P, Thurmond KB 2nd, Stewart DR, Rice JR, Beijnen JH

Pharmaceutical development, quality control, stability and compatibility of a parenteral lyophilized formulation of the investigational polymer-conjugated platinum antineoplastic agent AP5346.

Pharmazie. 2006 Oct;61(10):835-44.

PubMed ID
17069422 [ View in PubMed
]
Abstract

AP5346 is a low molecular weight polymer-conjugated platinum antineoplastic agent. The lyophilized drug product has completed a phase I clinical trial. In order to guarantee a constant quality of AP5346 pharmaceutical products, quality control and analysis of the drug substance and final product were performed. The identity of AP5346 was confirmed using 1H NMR, 195Pt NMR and IR spectroscopy. Furthermore, the free platinum content, platinum release characteristics, molecular size and size distribution were established. With the selected analytical techniques, AP5346 could be distinguished very well from its polymeric analogues, such as AP5280 and AP5279. Stability experiments revealed that AP5346 final product is stable for 12 months at 5 degrees C, in the dark. For administration to patients, AP5346 final product is reconstituted with 5% w/v dextrose and diluted in infusion containers. To investigate the influence of container materials, the stability of AP5346 after reconstitution and dilution in infusion containers was determined. The infusion containers investigated were composed of glass, polyvinyl chloride (PVC, intraflex) and low density polyethylene (LD-PE, Ecoflac). AP5346 was shown to be stable after reconstitution and dilution with 5% w/v dextrose in these infusion containers for at least 96 h at 2-8 degrees C in the dark and at room temperature with ambient light conditions.

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