Method Development and Validation for Estimation of Teneligliptin in Tablet Dosage Form by RP-HPLC
Bhanu Biswas1, Manish Kumar1, Jai Bharti Sharma1, Vipin Saini2, Shailendra Bhatt1*
1M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala
2Maharishi Markandeshwar University, Solan, Himachal Pradesh
*Corresponding Author E-mail: shailu.bhatt@gmail.com
ABSTRACT:
A new and simple technique of RP-HPLC was developed and validated for the estimation of Teneligliptin in the tablet dosage form. The partition or separation was accomplished on Kromasil C18 analytical column (150 mm × 4.6 mm, 5.0 μm) utilizing acetonitrile, water and trifluoroacetic acid as mobile phase A and acetonitrile and trifluoroacetic acid as mobile phase B at a flow rate of 1.0 ml/min. The detector used in the present study was UV detector and detection was detected at 245nm. The total chromatographic analysis time per sample was about 55.0 min with teneligliptin eluting at the retention time of about 11.2 minutes. The standard curve was found to be linear in the concentration range of 50-150μg/mL with R2 value of 0.999. The developed method was validated for different parameters like accuracy, precision, specificity and linearity. The developed RP-HPLC method was found to be simple, specific, rapid, reliable and reproducible.
KEYWORDS: Teneligliptin, HPLC, Assay, Validation.
INTRODUCTION:
Teneligliptin is a newly advanced oral dipeptidyl peptidase 4 inhibitors used for the treatment of type 2 diabetes mellitus (T2DM) in grown-ups alongside exercise and diet7. Teneligliptin is an anti-diabetic drug as it increases the insulin secretion from the pancreas. Teneligliptin is depicted as [(2S,4S)- 4-[4-(5-methyl-2-phenyl pyrazole-3-yl)piperazin-1-yl]pyrrolidin-2-yl]-(1,3-thiazolidine-3-yl)methanone].
The chemical formula of Teneligliptin is C22H30N6OS with a sub-atomic mass of 426.58 g/mol8-9. The chemical structure of teneligliptin is given in Figure-1.
Figure 1- Chemical Structure of Teneligliptin
It is a highly potent improves postprandial hyperglycemia and dyslipidemia10. Teneligliptin is a dipeptidyl peptidase-4 (DPP-4) inhibitor. DPP-4 inactivates the incretin hormone which is responsible for the secretion of the insulin. Incretin hormones, to be specific glucagon-like peptide-1 (GLP-1) and glucose-subordinate insulinotropic polypeptide (GIP), are discharged from enteroendocrine cells and improve insulin secretion11-14.
At present, teneligliptin is available in Japan (Teneria), Argentina (Teneglucon) and India (Tenepure; Teneza) and the endorsement status of Teneligliptin is given in Table-115-16.
Table 1- Endorsement status of Teneligliptin
Phase of Development |
Indication |
Country |
Marketed |
T2DM |
Japan |
Marketed |
T2DM |
Argentina |
Marketed |
T2DM |
India |
Teneligliptin is enrolled in South Korea and is in the pre-enlistment stage in Indonesia. Moreover, teneligliptin is in phase II clinical preliminaries in Europe, and phase I clinical preliminaries in the US.
Different methods were reported for the estimation of drug by RP-HPLC. [17-20]. In the present study, we have developed a simple, accurate and more précised method for the estimation of teneligliptin in tablet dosage form by RP-HPLC.
MATERIAL AND METHOD:
Chemicals and Reagents:
Teneligliptin HBr bulk drug was procured as a gift sample from Lupin Pvt Ltd. Pune, India, as a gift sample. Acetonitrile (HPLC grade) was purchased from Central Drug House (P) Ltd., India. The 0.45μm nylon filters were purchased from Advanced Micro Devices Pvt. Ltd. Chandigarh, India. The marketed tablets of Teneligliptin HBr were obtained from a local market (Glytrin tablets). All the other reagents and samples used were of analytical grade.
Table-2 Gradient programme
Time (minutes) |
Module |
Mobile Phase A |
Mobile Phase B |
0.01 |
Pumps |
88 |
12 |
5.00 |
Pumps |
88 |
12 |
20.00 |
Pumps |
62 |
38 |
30.00 |
Pumps |
25 |
75 |
40.00 |
Pumps |
25 |
75 |
40.10 |
Pumps |
88 |
12 |
55.00 |
Pumps |
88 |
12 |
55.01 |
Controller |
Stop |
Stop |
HPLC Instrumentation and conditions:
The analysis was carried out on an HPLC System (CyberlabLC-UV100) consist of a stainless-steel column (Kromasil C18 150 cm X 4.6 mm, 5µ), which was maintained at 40°C. The analytical wavelength was set at 245 nm and samples of 10 µl were injected to the HPLC system. It was a gradient system with a flow rate of 1.0 ml/min. The column temperature was 40°C while sampler temperature was 15ºC. The run time was 55 minutes. The gradient programme is given in Table 2.
Preparation of Mobile Phase A & B:
The mobile phase A consists of Acetonitrile: Water: Trifluoroacetic Acid (60: 1940: 2) v/v and the mobile phase B consists of Acetonitrile: Trifluoroacetic Acid (2000: 2) v/v. Both were sonicated for 10 minutes to remove air bubbles.
Preparation of Diluent:
The diluent contains Acetonitrile: Water (300: 700) v/v. They were properly mixed and sonicated for 10 minutes to remove air bubbles.
System Suitability:
For the system suitability, the following requirements were checked,
· The tailing factor for the teneligliptin peak should not be more than 2.0
· The relative standard deviation of the areas from each peak of teneligliptin of first 6 injections must not be greater than 5.0 %.
· The relative standard deviation of the areas from each peak of teneligliptin for all reference solution injections must not be greater than 5.0 %.
The HPLC system needs to be checked if the above requirements are not met.
Preparation of Standard Solution:
The standard stock solution was prepared by accurately weighing (31g) Teneligliptin HBr hydrate and transferred to a 100ml clean and dry volumetric flask. To this 70ml of diluent was added and sonicated for 10 minutes. It was then cooled and volume was made up with diluent. The standard solution was loaded in HPLC and six injections were taken from the same vial. The chromatogram of the standard solution is given in Figure 1.
Preparation of Test Solution:
Ten intact tablets were accurately weighed and it was properly crushed into a fine powder. The powder, equivalent to 20mg of Teneligliptin was properly weighed and transferred to a 100ml clean and dry volumetric flask. It was then sonicated for 15 minutes and vigorously shaken in a mechanical shaker for another 15 minutes to complete dissolution of the drug. The test solution was then cooled and volume was made up with diluent. The test solution was centrifuged at 4000rpm for 10 minutes. The test solution was then filtered with a 0.45µ nylon filter and injected and chromatographed in duplicates. The peak area of Teneligliptin was estimated at 245nm and chromatograms were recorded. The drug content (mg/tablet) was evaluated by comparing the mean peak area of the standard with that of the sample and per cent labelled claim was calculated. The chromatogram of the test solution is given in Figure 2.
Method Validation:
The developed method was validated as per ICH guidelines.
Specificity:
The specificity of the method was determined to identify the presence of any interfering compound. For specificity study, a fixed concentration of standard, test and blank solution was injected to the HPLC system and the chromatograms were measured at 245nm.
Precision:
The method precision was determined by making six replicate injections on the same day for intraday precision. The % RSD was calculated.
Accuracy:
For the accuracy study, teneligliptin standard concentration recovery was performed at 50, 100 and 150%. Three individual samples were prepared and percentage recovery, as well as %RSD, were calculated.
Linearity:
The linearity study was performed by analysing the standard stock solution. The stock solution was prepared by dissolving 50mg Teneligliptin HBr in 100ml volumetric flask with diluent.
Dilutions were made to get concentrations of 50µg/ml, 80µg/ml, 100µg/ml, 120µg/ml and 150µg/ml from the above stock solution. Two dilutions of 50µg/ml and 150 µg/ml were injected thrice were as remaining concentrations were injected twice. The calibration curve was constructed by plotting the peak areas of analyte versus the corresponding drug concentration.
RESULT AND DISCUSSION:
Assay method:
The % drug content of teneligliptin was calculated and it was found to be 98.65 % and it was found that the assay method has passed the system suitability criteria. The results for the assay method are shown in Table 3 and Table 4.
Table 3: Result of Standard solution for the assay method
Sr. No |
Standard Area |
1 |
3597903 |
2 |
3574855 |
3 |
3585490 |
4 |
3576131 |
5 |
3577689 |
6 |
3574076 |
Mean |
3581024 |
StdDev |
9232.99 |
RSD |
0.26 |
Table 4: Result of the Assay method
Area 1 |
Area 2 |
Mean Area |
% Assay |
3505390 |
3506892 |
3506141 |
98.65 |
Method Validation:
Specificity:
From the values and calculation, it was also found that the specificity parameter has passed and the chromatographic peaks are well separated and there is no interfering peaks were observed. The peak purity is also more than 990 at the scale of 1000 for the principal peak.
The final result is given in Table 5.
Table 5: Result of Specificity parameter
Solution Name |
Retention Time of the peak (minutes) |
Peak observed due to Teneligliptin |
Interference at Teneligliptin RT (Yes/No) |
Purity Match (NLT 990) |
Blank Solution |
ND |
ND |
No |
ND |
Placebo Solution |
ND |
ND |
No |
1000 |
Standard Solution |
11.38 |
Peak due to Teneligliptin |
No |
1000 |
Table 6: Result of Method Precision
Method Precision |
Area 1 |
Area 2 |
Mean Area |
% Assay |
1 |
3539284 |
3534305 |
3536795 |
99.49 |
2 |
3535177 |
3523550 |
3529364 |
99.39 |
3 |
3639380 |
3544459 |
3541920 |
99.58 |
4 |
3541939 |
3542766 |
3542353 |
99.54 |
5 |
3529698 |
3525700 |
3527699 |
99.72 |
6 |
3507184 |
3508408 |
3507796 |
98.55 |
AVG |
99.4 |
|||
STDEV |
0.4188 |
|||
% RSD |
0.42 |
Method Precision:
The %RSD was found to be 0.42%. As the value of %RSD is less than 2% the method precision parameter has passed. The result of the method precision parameter is given in Table-6
Accuracy:
The accuracy parameter was performed at three different levels of teneligliptin. The highest %RSD was found to be 1.43 for teneligliptin. The accuracy parameter has passed as the individual recovery is between 97% - 103% and the mean recovery is between 98% - 102%. The accuracy result was found to be 100%. The final result is given in Table 7.
Table 7: Result of Accuracy parameter
Level of addition |
% Mean recovery |
SD |
%RSD |
50 |
99 |
0.35 |
0.31 |
100 |
99 |
1.60 |
1.60 |
150 |
101 |
1.48 |
1.48 |
Linearity:
The peak obtained have a perfect relationship with the concentration. The linearity for Teneligliptin HBr in the concentration range from 50-150 µg/ml. The correlation coefficient was found to be (R2 ) = 0.9999 respectively. The linearity plot is given in Figure 3 and the result of linearity is given in Table 8. The % RSD was found to be less than 1%.
Table 8: Result of Linearity
% w.r.t. Reference Conc. |
Conc. In µg/ml (Teneligliptin) |
Area |
% RSD |
50 |
155.0000 |
1784428 |
0.03 |
80 |
250.0000 |
2879992 |
0.01 |
100 |
310.0000 |
3550513 |
0.01 |
120 |
370.0000 |
4291748 |
0.07 |
150 |
465.0000 |
5340574 |
0.04 |
CONCLUSION:
The RP-HPLC method was successfully developed and validated the estimation of Teneliglptin HBr in the tablet dosage form. The suggested method was found to be sensitive, specific, precise, accurate and linear as compared to other methods. The drug was well separated from the analyte peaks, indicates the stability nature of the developed method. The developed RP-HPLC method could be employed for the routine analysis of raw materials and dissolution study of a tablet dosage form containing Teneligliptin HBr.
REFERENCES:
Received on 04.07.2019 Modified on 11.07.2019
Accepted on 04.08.2019 © RJPT All right reserved
Research J. Pharm. and Tech. 2020; 13(4):1774-1778.
DOI: 10.5958/0974-360X.2020.00320.0