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  • Title: Stability of calcium levofolinate reconstituted in syringes and diluted in NaCl 0.9% and glucose 5% polyolefin/polyamide infusion bags.
    Author: Sanogo S, Silimbani P, Gaggeri R, Masini C.
    Journal: J Oncol Pharm Pract; 2021 Mar; 27(2):288-296. PubMed ID: 32299315.
    Abstract:
    PURPOSE: Calcium levofolinate (CaLev) for intravenous administration is commercially available as a powder that must be reconstituted for injection or reconstituted and then diluted before administration. The lack of stability data on CaLev solutions renders necessary extemporaneous manual preparation, preventing the use of automated/semi-automated systems, with a consequent loss in terms of quality and safety. METHODS: The present work assessed the chemical-physical and microbiological stability of CaLev prepared in sodium chloride 0.9%, glucose 5% and water for injections and stored in polyolefin/polyamide bags and polypropylene syringes at 2-8°C protected from light. For this purpose, we developed and validated a new rapid High Performance Liquid Chromatography with Ultra Violet Diode-Array Detection (HPLC-UV-DAD) method. RESULTS: The samples tested were stable for 14 days, retaining >95% of their initial concentration and showing no change in colour, turbidity or pH. Microbiological tests performed on the samples were negative. CONCLUSIONS: Our results confirmed the analytical stability of CaLev in NaCl 0.9%, glucose 5% and water for injection at concentrations used in clinical practice at our institute. This enables our centralized laboratory to organize the preparation of this drug in advance and the use of robots rather than manual preparation reduces the workload and the risk of preparation errors.
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