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  • Title: Determination of progesterone (steroid drug) in the semi-solid dosage form (vaginal gel) using a stability-indicating method by RP-HPLC/PDA detector.
    Author: Konduru N, Kethe VB, Gundla R, Katari NK, Mallavarapu R.
    Journal: Biomed Chromatogr; 2022 Jan; 36(1):e5246. PubMed ID: 34523747.
    Abstract:
    A simple stability-indicating method was developed and validated for the determination of progesterone (a steroid drug) in the semi-solid dosage form. All the impurities were separated from the main compound with a simple stationary phase (Eclipse XDB, C8, 150 × 4.6 mm, 5 μm). The mobile phase A contained phosphate buffer and acetonitrile in the ratio of 90:10, v/v, and mobile phase B contained purified water and acetonitrile in the ratio of 10:90, v/v. The optimized chromatographic conditions were as follows: flow rate, 1.0 mL min-1 ; UV detection, 241 nm; injection volume, 10 μL; and the column temperature, 30°C. The method was validated as per the current ICH Q2 guidelines. The recovery study and linearity ranges were established from 50 to 300% optimal concentrations. The method validation results were found between 98 and 102% for accuracy and r2  = 0.999 for linearity. Forced degradation in hydrolytic, oxidative, thermolytic, and photostability conditions was performed, and the stability indicating nature of the method was proved. Based on the validation and forced degradation results, the current method was found to be specific, precise, accurate, linear, robust, and stability-indicating method. The developed method was cost effective and easy to handle for quality control analysis.
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