A SIMPLE METHOD DEVELOPMENT, VALIDATION AND QUANTIFICATION OF LENVATINIB IN PHARMACEUTICAL DOSAGE FORM USING ZERO ORDER AND FIRST-ORDER DERIVATIVE NOVEL SPECTROPHOTOMETRIC METHODS
HTML Full TextA SIMPLE METHOD DEVELOPMENT, VALIDATION AND QUANTIFICATION OF LENVATINIB IN PHARMACEUTICAL DOSAGE FORM USING ZERO ORDER AND FIRST-ORDER DERIVATIVE NOVEL SPECTROPHOTOMETRIC METHODS
Mona R. Patel * and Harsha U. Patel
Gujarat Technological University, Chandkheda, Ahmedabad, Gujarat, India.
ABSTRACT: Simple, very Sensitive, rapid, and accurate novel spectro-photometric methods were developed to estimate Lenvatinib in Pharmaceutical dosage form using zero- and first-order derivative spectrophotometry. The solutions of Lenvatinib standard and sample were prepared using analytical grade methanol. The spectrophotometric estimation of lenvatinib was carried out at 240 nm in the zero-order method and 253 nm in the first-order derivative method. Developed methods were validated with respect to linearity, precision, accuracy, limit of detection and quantitation in accordance with International Council for Harmonisation (ICH) guidelines. Linearity was observed in the concentration range of 1-5 µg/mL for zero- and first-order derivative methods. LOD and LOQ of Lenvatinib were found to be 0.017 µg/mL and 0.052 µg/mL for zero-order and 0.165 µg/mL and 0.500 µg/mL for first-order derivative spectrophotometric methods, respectively. The %RSD values for inter-day and intra-day precision study were <2.0%. The method was linear, accurate and precise with recoveries in the range of 98 – 102 %, and minimum values of %RSD indicate the method's accuracy. Developed spectrophotometric methods were successfully applied to assay Lenvatinib Capsule dosage form. The detailed quantitative results showed that this method is accurate, precise, and cost-effective and can be used for routine analysis of Lenvatinib in the capsule dosage form.
Keywords: Spectrophotometric, Lenvatinib, Linearity, Precision, Accuracy
INTRODUCTION: Lenvatinib belongs to Anticancer Drug, a tyrosine kinase inhibitor 1. IUPAC name, chemical formula, and Mol. Wt. of Lenvatinib are 4-[3-Chloro-4-(cyclopropyl-carbamoylamino) phenoxy]-7-methoxy-quinoline-6-carboxamide 1, C21H19ClN4O4 and 426.86 g/mol respectively. It is not official in any pharmacopeia 1-2.
It is freely soluble in methanol and sparingly soluble in acetonitrile and water. It is an oral anticancer drug mainly used for thyroid cancer treatment. The chemical structure of Lenvatinib is shown in Fig. 1.
FIG. 1: CHEMICAL STRUCTURE OF LENVATINIB
A detailed review of the Literature survey reveals that very few conventional methods in bulk and pharmaceutical formulation like UV Spectro-photometric methods 3, RP- HPLC 3-7, UPLC 8-9, Bioanalytical 10-11 and LC-MS 12 were reported and found to be more time consuming and expensive. The present study aimed to develop a novel, simple, rapid, and accurate and validate zero-order and first-order derivative spectrophotometric method for estimating Lenvatinib in Capsule dosage form.
EXPERIMENTAL WORK:
Instrumentation: The various instrument(s) and apparatus used during the research work are listed in Table 1.
TABLE 1: LIST OF INSTRUMENT(S) AND APPARATUS
Instrument(s) and Apparatus | Specifications |
Double-beam UV Spectrophotometer | Shimadzu- 1800, Software- UV Probe version 2.42 |
Analytical balance | Reptech |
Volumetric flask (borosil) | 10, 50, 100 ml |
Pipette (borosil) | 1, 2, 5, 10 ml |
Reagents and Materials: All reagents/ chemicals used during research work were either AR. The various Reagents and Chemicals used during the experiment are listed in Table 2.
TABLE 2: LIST OF REAGENTS AND MATERIALS
Reagents and Materials | Grade |
Lenvatinib procured from Shashi Pharma as a gift sample | Reference |
Lenvatinib Capsule was procured from Local Pharmacy store | --- |
Methanol | Analytical |
Preparation of Standard Stock Solution: Weigh and transfer 0.5 mg of Lenvatinib powder in 50 mL volumetric flask containing 40 mL methanol, Shake well. Later dilute to volume with methanol to obtain the strength concentration, i.e. 10 μg/mL (Stock solution).
Preparation of Working Standard Solution: Take 5 mL from the Lenvatinib stock solution and transferred to 10 mL volumetric flask and volume made up to the mark by methanol to obtain 5 μg/mL.
Selection of Detection Wavelength: To determine optimum λmax, Lenvatinib 5 μg/mL of working standard solution was prepared and scanned in UV visible range of 400 nm – 200 nm utilizing as a blank. It was observed that the drug showed maximum absorbance at 240 nm and 253 nm for zero order and first-order derivative spectroscopy, respectively, which was chosen for detection wavelength for estimation of Lenvatinib.
FIG. 2: (A) ZERO-ORDER SPECTRA OF LENVATINIB (5 ΜG/ML) IN METHANOL; (B) FIRST-ORDER SPECTRA OF LENVATINIB (5 ΜG/ML) IN METHANOL
Spectrophotometric Estimation of Lenvatinib by Zero Order and First Order Derivative Methods:
Linearity and Range: A calibration curve was plotted over a concentration range of 1-5 μg/mL for Lenvatinib. Precisely measured standard solution of Lenvatinib (1, 2, 3, 4 and 5 mL) was shifted to a series of 10 mL volumetric flasks and the volume was filled up to 10 mL with methanol. The calibration curve was done by plotting lenvatinib concentration on the X-axis and their respective absorbance was on the Y- axis.
System Precision:
Repeatability: In system precision, 3 μg/mL concentrations of 6 measurements of absorbance at 240 nm for zero-order and 253 nm for first order derivative were observed on the same day and responses were evaluated. The Mean, SD and %RSD were calculated.
Intermediate Precision: The Precision of developed analytical methods demonstrated by Intraday and Interday Precision.
Intraday Precision: In Intraday Precision, Standard solution containing Lenvatinib (3 μg/mL) was measured at 240 nm for zero-order and 253 nm for first-order derivative on the same day (0 hr, 3 hr and 6 hr) and then average absorbance and % RSD was calculated.
Interday Precision: In Interday Precision, the Standard solution containing Lenvatinib (3 μg/mL) was measured at 240 nm for zero-order and 253 nm for first-order derivative in three different days (day 1, 2 and 3) and then average absorbance and % RSD was calculated.
Accuracy (Recovery Studies): A recovery study of Lenvatinib was carried out by utilizing the standard addition method. By preparing the known amount of standard Lenvatinib drug at 3 levels (80%, 100%, and 120%) was added to the pre-analyzed sample and again re-analyzed. From the amount of Lenvatinib found, % recovery was estimated. The %RSD was calculated.
Limit of Detection: The LOD of an analytical method is the lowest amount of analyte in a sample that can be detected but not necessarily quantified.
Limit of Quantitation: The LOQ of an analytical method is the lowest amount of analyte in a sample which can be quantified but not necessarily detected.
Robustness: The solution was checked in UV spectrophotometer by changing wavelength; three samples were checked at 239 nm, 240 nm and 241 nm for zero-order and at 252 nm, 253 nm and 254 nm for first-order derivative methods. The mean absorbance, SD, and %RSD were calculated.
Assay: Twenty Lenvatinib Capsules were accurately weighed, and the average weight was calculated. Weigh a quantity of mixed content of above capsules containing about 4 mg of Lenvatinib was transferred to 100 ml volumetric flask. The addition of 80 ml methanol extracted Lenvatinib.
The above solution was sonicated for 20 min. and then filtered into 100 ml volumetric flask and fill up to mark with same solvent. Further dilution was made to obtain 4 μg/mL with methanol for zero-order and first-order derivative methods. Then the solution was analyzed using the proposed spectrophotometric method.
RESULT AND DISCUSSION:
Linearity and Range: Linearity was assessed by analysis of standard solution in a range of 1-5 μg/mL Lenvatinib. For zero order, the Calibration curve for Lenvatinib was found to be y= 0.152x + 0.023. The correlation coefficient (r2) was found to be 0.991.
For first-order derivative, the Calibration curve for Lenvatinib was found to be y= 0.008x + 0.003. The correlation coefficient (r2) was found to be 0.994. The linearity data and calibration curve results are shown in Table 3 and Fig. 3, Fig. 4, and Fig. 5.
FIG. 3: STANDARD CALIBRATION CURVE OF LENVATINIB AT 240 NM (1-5 ΜG/ML)
TABLE 3: LINEARITY DATA FOR LENVATINIB AT 240 NM AND 253 NM (1-5 μg/mL)
Sr. no. | Conc. (μg/mL) | Zero order (240 nm) | First order derivative (253 nm) | ||
Abs. ± SD | % RSD | Abs. ± SD | % RSD | ||
1 | 1 | 0.196 ± 0.0037 | 1.903 | 0.011 ± 0.0002 | 1.869 |
2 | 2 | 0.322 ± 0.0029 | 0.887 | 0.018 ± 0.0003 | 1.828 |
3 | 3 | 0.444 ± 0.0023 | 0.506 | 0.024 ± 0.0004 | 1.689 |
4 | 4 | 0.639 ± 0.0014 | 0.215 | 0.034 ± 0.0005 | 1.504 |
5 | 5 | 0.798 ± 0.0017 | 0.215 | 0.041 ± 0.0005 | 1.269 |
FIG. 4: STANDARD CALIBRATION CURVE OF LENVATINIB AT 253 NM (1-5 ΜG/ML)
FIG. 5: OVERLAY SPECTRA OF (a) LINEARITY FOR LENVATINIB AT 240 nm; (b) LINEARITY FOR LENVATINIB AT 253 nm
System Precision (Repeatability): Repeatability study carried out using Lenvatinib solution containing 3 µg/mL. Then % RSD was found to be 0.485 for zero-order and 1.746 for first order derivative methods.
TABLE 4: REPEATABILITY DATA FOR LENVATINIB AT 240 nm FOR ZERO ORDER METHOD
Sr. no. | Conc. (μg/mL) | Repeatability | ||
Absorbance at 240 nm | Mean ± SD | %RSD | ||
1. | 3 | 0.444 | 0.440 ± 0.0021 | 0.485 |
0.448 | ||||
0.442 | ||||
0.445 | ||||
0.446 | ||||
0.443 |
TABLE 5: REPEATABILITY DATA FOR LENVATINIB AT 253 nm FOR FIRST ORDER DERIVATIVE METHOD
Sr. no. | Conc. (μg/mL) | Repeatability | ||
Absorbance at 253 nm | Mean ± SD | %RSD | ||
1. | 3 | 0.024 | 0.024 ± 0.0004 | 1.746 |
0.025 | ||||
0.024 | ||||
0.024 | ||||
0.025 | ||||
0.024 |
Intermediate Precision:
Intraday Precision: In Intraday Precision, % RSD was found to be 1.103 for zero-order and 1.441 for first-order derivative methods.
Interday Precision: In Interday Precision, % RSD was found to be 1.645 for zero-order and 1.766 for first-order derivative methods.
TABLE 6: PRECISION DATA FOR LENVATINIB AT 240 nm AND 253 nm
Sr. no. | Spectrophotometric methods | Lenvatinib Conc.
(μg/mL) |
Intraday | Interday |
Absorbance (Mean, n= 6) ± SD, %RSD | Absorbance (Mean, n= 6) ± SD, %RSD | |||
1. | Zero order method | 3 | 0.453 ± 0.0050, 1.103 | 0.451 ± 0.0065, 1.441 |
2. | First-order derivative method | 0.024 ± 0.0004, 1.645 | 0.025 ± 0.0004, 1.766 |
Accuracy (Recovery Studies): The amount of Lenvatinib was calculated, and % recovery was found satisfactory.
TABLE 7: RECOVERY DATA FOR LENVATINIB
Sr. no. | Conc. Level | Amt. taken
(μg/mL) |
Amt. added
(μg/mL) |
Total amount
(μg/mL) |
Amt. Recovered (μg/mL) | % Amt. Found ± SD
(mg/mL) |
% RSD |
Zero-order Spectrophotometric method | |||||||
1. | 80% | 3 | 2.4 | 5.4 | 2.430 | 101.26 ± 0.4300 | 0.425 |
2. | 100% | 3 | 3.0 | 6.0 | 2.986 | 99.55 ± 0.2252 | 0.226 |
3. | 120% | 3 | 3.6 | 6.6 | 3.623 | 100.66 ± 0.3907 | 0.388 |
First-order Derivative Spectrophotometric method | |||||||
1. | 80% | 3 | 2.4 | 5.4 | 2.409 | 100.38 ± 1.0752 | 1.071 |
2. | 100% | 3 | 3.0 | 6.0 | 2.996 | 99.88 ± 0.8438 | 0.845 |
3. | 120% | 3 | 3.6 | 6.6 | 3.616 | 99.40 ± 0.3976 | 0.400 |
Limit of Detection and Quantitation: The LOD was found to be 0.017 μg/mL for zero-order and 0.165 μg/mL for first-order derivative methods. The LOQ are found to be 0.052 μg/mL for zero-order and 0.5 μg/mL for first-order derivative methods.
TABLE 8: LOD AND LOQ DATA FOR LENVATINIB
Zero-order Spectrophotometric method | |
LOD = 3.3 X (SD/ Slope)
= 3.3 X (0.0008 / 0.152) = 0.017 μg/mL |
LOQ = 10 X (SD/ Slope)
= 10 X (0.0008 / 0.125) = 0.052 μg/mL |
First-order derivative Spectrophotometric method | |
LOD = 3.3 X (SD/ Slope)
= 3.3 X (0.0004 / 0.008) = 0.165 μg/mL |
LOQ = 10 X (SD/ Slope)
= 10 X (0.0004 / 0.008) = 0.5 μg/mL |
Robustness: The robustness of the method is demonstrated in Table 9:
TABLE 9: ROBUSTNESS DATA FOR LENVATINIB
Zero-order Spectrophotometric method | ||||
Sr. no. | Concentration | Abs. at 239 nm | Abs. at 240 nm | Abs. at 241 nm |
1. | 3 μg/mL | 0.422 | 0.441 | 0.432 |
2. | 0.418 | 0.449 | 0.426 | |
3. | 0.432 | 0.438 | 0.419 | |
Mean | 0.424 | 0.443 | 0.426 | |
SD | 0.007 | 0.006 | 0.007 | |
% RSD | 1.700 | 1.284 | 1.529 | |
First-order derivative Spectrophotometric method | ||||
Sr. no. | Concentration | Abs. at 252 nm | Abs. at 253 nm | Abs. at 254 nm |
1. | 3 μg/mL | 0.025 | 0.023 | 0.023 |
2. | 0.025 | 0.024 | 0.024 | |
3. | 0.024 | 0.024 | 0.023 | |
Mean | 0.025 | 0.024 | 0.023 | |
SD | 0.0004 | 0.0004 | 0.0003 | |
% RSD | 1.811 | 1.489 | 1.287 |
Assay: The assay of the Lenvatinib Capsule dosage form was found within the standard range.
TABLE 10: ASSAY OF LENVATINIB CAPSULES
Sr.
no. |
Label claim
(mg) |
Mean Absorbance* of Sample | Mean Result* (mg) | Average*
% Assay |
SD | % RSD |
Zero-order Spectrophotometric method | ||||||
1. | 4.0 | 0.638 | 3.998 | 99.96 | 0.060 | 0.060 |
First-order derivative Spectrophotometric method | ||||||
1. | 4.0 | 0.035 | 3.988 | 99.71 | 0.699 | 0.701 |
* Average of five determinations (n=5).
TABLE 11: SUMMARIZED VALIDATION PARAMETERS OF LENVATINIB
Parameters | Zero-order spectrophotometric method | First-order derivative spectrophotometric method | ||
Concentration Range | 1-5 μg/mL | 1-5 μg/mL | ||
Regression equation | y = 0.152x + 0.023 | y = 0.008x + 0.003 | ||
Regression coefficient (R2) | 0.991 | 0.994 | ||
LOD | 0.017 μg/mL | 0.165 μg/mL | ||
LOQ | 0.052 μg/mL | 0.5 μg/mL | ||
Repeatability (% RSD) | 0.485 | 1.746 | ||
Intraday precision (n=3) (Mean ± SD, % RSD) | 0.453 ± 0.0050, 1.103 | 0.024 ± 0.0004, 1.645 | ||
Interday precision (n=3) (Mean ± SD, % RSD) | 0.451 ± 0.0065, 1.441 | 0.025 ± 0.0004, 1.766 | ||
% Recovery | 80 % | 101.26 ± 0.4300, 0.425 | 100.38 ± 1.0752, 1.071 | |
100 % | 99.55 ± 0.2252, 0.226 | 99.88 ± 0.8438, 0.845 | ||
120 % | 100.66 ± 0.3907, 0.388 | 99.40 ± 0.3976, 0.400 | ||
Assay of Marketed formulation | 99.96 % | 99.71 % | ||
CONCLUSIONS: No derivative spectrophotometric methods have been described to estimate Lenvatinib in the capsule dosage form. Therefore very simple, novel, fast, sensitive, and accurate, as well as validated zero-order and first-order derivative spectrophotometric methods, were developed and validated according to the ICH guidelines. This method is linear over the 1- 5 µg/mL concentration range. The system's suitability, precision, and accuracy values are within acceptable limits. Developed spectro-photometric methods were successfully applied to assay Lenvatinib in the capsule dosage form. The detailed quantitative results showed that this method is accurate, precise, and cost-effective and can be used for routine estimation of Lenvatinib in the capsule dosage form.
ACKNOWLEDGEMENT: Authors wish to thank the support received from the Faculty of Pharmacy, SRI campus, for providing chemicals, Instruments, and laboratories to carry out this research work.
CONFLICTS OF INTEREST: The authors declare no conflict of interest.
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How to cite this article:
Patel MR and Patel HU: A simple method development, validation and quantification of lenvatinib in pharmaceutical dosage form using zero order and first order derivative novel spectrophotometric methods. Int J Pharm Sci & Res 2023; 14(5): 2422-28. doi: 10.13040/IJPSR.0975-8232.14(5).2422-28.
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Article Information
35
2422-2428
650 KB
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English
IJPSR
Mona R. Patel * and Harsha U. Patel
Gujarat Technological University, Chandkheda, Ahmedabad, Gujarat, India.
patelmona4795@gmail.com
31 August 2022
13 October 2022
17 November 2022
10.13040/IJPSR.0975-8232.14(5).2422-28
01 May 2023