RP-HPLC Method Development and Validation for the Estimation of Sacubitril and Valsartan in Pharmaceutical Dosage Form

A new, economical, simple, accurate, and precise RP-HPLC method was developed for simultaneous assay and content uniformity determination of Sacubitril and Valsartan in bulk and pharmaceutical dosage form. The separation of Sacubitril and Valsartan was achieved within 6 minutes on Phenomenex Luna C18 250 mm x 4.6mm and 5µm Particle Size, column using Acetonitrile: Methanol: Water (30:55:15% v/v/v) as the mobile phase. Detection was carried out at 250 nm wavelength. The retention time of Sacubitril and Valsartan was found to be 2.361 and 3.304 min, respectively. The validation of the developed method was performed in terms of specificity, accuracy, precision, linearity, the limit of detection, the limit of quantification as mentioned in International Conference on Harmonization (ICH) guidelines. The method showed adequate sensitivity concerning linearity, accuracy, and precision over the range 12-36 μg/ml and 13-39 μg/ml for Sacubitril and Valsartan, respectively. The percentage recoveries obtained for Sacubitril and Valsartan were found to be in the range of 98.00 – 102.00 %. The proposed method is suitable for use in quality-control laboratories for quantitative analysis.