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Get Permission Choudhary, Goyal, and Vaishnav: Process validation of prasugrel hydrochloride tablet USP


Introduction1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17

Process validation establishes the flexibility and constraints in the manufacturing process controls to attain the desirable attributes in the drug product while preventing undesirable properties.

This is an important concept, because of support and define the validation, which is a systematic approach to identifying, measuring, evaluating, documenting, and re-evaluating a series of critical steps in the manufacturing process that require control to ensure a reproducible final product. Validation therefore challenges the adequacy and reliability of a system or process to meet predetermined criteria on a consistent basis from batch to batch.

The primary objective of process validation is; to provide a high degree of assurance of quality, to ensure the consistency of the manufacturing operation and reproducibility, to demonstrate the robustness of the process and to ensure the existence of all necessary quality assurance system within organization.

The field of validation is divided into a number of subsections includes Process validation, Cleaning validation, Equipment validation, Validation of analytical methods.

Process validation includes a series of processing activities carried out over the lifecycle of final product categorized as

  1. Prospective validation.

  2. Retrospective validation.

  3. Concurrent validation.

  4. Revalidation.

Drug Review18, 19, 20

Pharmacopoeial description

  1. Molecular Formula- C20H20FNO3S.

  2. IUPAC Name- 5- [2- cyclopropyl -1- (2-fluorophenyl) -2- oxoethyl] -4, 5, 6, 7- tetrahydrothieno [3, 2 –c] pyridin-2-yl acetate.

  3. Molecular Weight- 373 44100g/mol g mol-1.

Structure

Figure 0
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Pharmacokinetic parameters

  1. Bioavailability in the tablet form- >50%.

  2. Protein binding- 94-98%.

  3. Metabolism- Hepatic.

  4. Half life- 7- 8 hours.

  5. Excretion – 50% renal, 46% biliary.

Pharmacological actions of prasugrel

  1. Prevention of thrombosis used in combination with low dose aspirin.

  2. Acute coronary syndrome without ST-segment elevation.

  3. Prevention of vascular ischemic events in patients with symptomatic atherosclerosis.

Adverse drug reaction

  1. CVS- Hypertension (8%), Hypotension (4%), Bradycardia and Peripheral edema (3%).

  2. CNS-Headache (6%), Dizziness (4%), Fever and Extremity pain (3%).

  3. Dermatologic rash (3%).

  4. Gastrointestinal Haemorrhage.

  5. Thrombotic Thrombocytopenic purpura.

  6. Severe Neutropenia (low white blood cell).

  7. Use of non-steroidal anti-inflammatory drugs is discouraged in those taking prasugrel due to increased risk of digestive tract haemorrhage.

Most studies researching Prasugrel do not compare patients on Prasugrel to patients taking placebo; rather Prasugrel use is compared with use of aspirin. Thus attributing side effects directly to prasugrel is difficult. Other gastrointestinal side effect includes, Diarrhea, Rash Respiratory, Upper GI discomfort, Gastric or duodenal ulcer, gastritis, Upper respiratory infections, rhinitis, shortness of breath, cough.

Plan of Work

Literature survey21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35

Selection of Formulation Selection of formulation and preparation of drug/excipient profile

Prasugrel Hydrochloride tablets USP 10 mg were selected for the process validation. Drug profile was prepared for formulation and it included the chemical data, pharmacokinetic data and therapeutic consideration. Each excipients used in the formulation was described for their physical properties, solubility, pH, storage and also their functional category.

Selection of type of process validation and preparation of validation protocol

Process validation was selected for that three consecutive batches were taken or selected.

Analysis of sample as per specification

Various tests were carried out as per specification mentioned in protocol after collecting the sample. Results of the entire test were prepared.

Review and compilation of results

Review and compilation of all three batches had done. Submission of final discussion and reports, deviation, summary and conclusion of any observation was included.

Material and Methods

All the equipment’s and instruments must be calibrated before use. These are Equipments/Instruments Details: Sifter (300-500 Kg/Hour), Multi mill (50 to 250 Kg/Hour), RMG (400 Liters), FBD (150 Kg), Octagonal Blender (1200 lit), Compression Machine (27 station), Auto Coater(150 kg), Blister Packaging(200 blister/min), Paste Kettle(50 Liters), Metal Detector, Electronic Balance (60kg), Disintegration Apparatus, Vernier Caliper(6 inch), Leak test Apparatus, Friability Tester and Hardness Tester.

By using these above mentioned equipments and instruments manufacturing flow chart has followed and data filled under the validation protocol which includes 21 parameters; Pre-Approval, Purpose, Objective, Scope, Responsibility, Type of Process Validation, Training, Validation Strategy, Document Verification, Product Information, Manufacturing Formula, Manufacturing Process Flow Diagram, Manufacturing Procedure, Sampling Plan, Sampling Locations, Preparation of a Validation Protocol, Reference Documents, Deviations & change control (if any), Summary & Conclusion, Abbreviations and Protocol Post Approval.

Excipients profile

Dibasic calcium phosphate

Chemical name: Calcium monohydrogen Phosphate (1:1)4 Physical state and appearance: Powdered solidOdour: Odourless Colour: WhiteFunctional Category: Dietary supplement

Aerosil 200

Chemical name: Silicon Dioxide2 Physical state and appearance: Powdered solidOdour: Odourless Taste: TastelessColour: WhiteFunctional Category: Anticaking agent, improve tablet properties such as hardness, friability.

Lactose

Chemical formula: C12H22O11 Physical state and appearance: white crystalline powderOdour: Odourless Functional Category: Filler

Starch

Molecular formula: (C6H10O5)Physical state and appearance: White amorphous powder.Odour: OdourlessFunctional Category: Food additive, binder

Sorbitol solution (70%

Physical state and appearance: Liquid

Talc

Chemical formula: 3MgO.4SiO2.H2OPhysical state and appearance: Powdered solidOdour: Odourless Colour: White, Greyish whiteSolubility: Insoluble in waterFunctional Category: Glidant

Magnesium stearate

Chemical formula: (C17H35COO) 2MgPhysical state and appearance: SolidSolubility: Very slightly soluble in cold waterFunctional Category: Antiadherant, lubricant

Experimental Work

Evaluation parameters of tablet are as follows:

Content uniformity      

After the compression method the content uniformity of tablets was tested. The assay method was followed to check the content uniformity.

Weight variation

Twenty tablets were randomly selected from each batch and individually weighed. The average weight and standard deviation of 20 tablets was calculated.

Hardness

The crushing strength Kg/cm2 of prepared tablets was determined for 10 tablets of each batch by using Monsanto tablet hardness tester. The average hardness and standard deviation was determined.

Thickness

Twenty tablets were randomly selected from each batch and thickness was measured by using Digital Vernier Caliper.

Friability

Twenty tablets were weighed and placed in the Roche friability testing apparatus and apparatus was rotated at 100 rpm. After revolutions the tablets were deducted and weighed again. Difference in initial and final weight determines friability.

Dissolution test

Dissolution test were carried out to determine the amount of drug released during a specific period of time using USP apparatus-I. 5ml of sample was withdrawn after specified time interval, and was replaced by an equal volume of fresh dissolution medium to maintain the sink condition. Collected samples were analyzed spectrophotometrically.

Disintegration test

Six tablets from each batch were utilized for disintegration studies in distilled water at 37°C using a Disintegration Apparatus USP STD. The disintegration time was taken to be the time no granule of any tablet was left on the mesh of the apparatus.

Process Validation Includes Various Critical Process Parameters and Specifications

Table 1

Critical process parameters

Process Equipment Manufacturing Process Parameter
Sifting Sieve used for Sifting 20#, 40# sieve; Area temp-NMT 25ºC
Dry Mixing RMG Slow speed- 15 min; Fast speed- 5 min.
Binder Preparation S.S. container Cool the paste up to 50°C -60°C.
Wet Mixing RMG with impeller Slow speed for 10 minutes.
Drying FBD bowl Fluidize for15 min. Inlet temp 55-60°C.
Rasping and Sizing Multi Mill 2.5 mm screen with knives. Resifted through 16 # in mechanical sifter.
Blending& Lubrication Blender Blend 15 min. & Lubricate for 5 minutes at slow speed.
Compression Compression Machine Machine speed: 1200 TPM (27 Stations)
Coating Auto Coater Preheat temp: 30 - 35°CIn let temperature: 40 - 45°COut let temperature: 35 - 40°CBed temperature : 30 - 40°CPan RPM: 2 - 5 rpm

Table 2

Finished product specifications

S No. Test Specifications
1. Description Yellowish beige colour, oval shaped, film coated tablets with logo engraved on one side and plain on other side.
2. Identification (BY HPLC) The retention time of major peak obtained in test solution should correspond to that obtained in the chromatogram of the standard solution in the assay.
3. Average weight 310.0 mg ± 2.0%
4. Thickness 4.4 mm ± 0.2 mm
5. Uniformity of Dosage units The acceptance value (AV) for 10 units should be less than or equal to 15.0
6. Disintegration Time Not more than 30 minutes
7. Dissolution (By HPLC) NLT 70.0% of the labeled amount of Prasugrel hydrochloride is dissolved in 30 minutes.
8. Assay (% Label Claim): Prasugrel hydrochloride Content Claim:10 mg/tablet (5% overages) NLT 97.0% and NMT 110.0% of the labelled amount of Prasugrel hydrochloride

Packing

Process parameters

  1. Area Temp - NMT 25ºC & RH-NMT 55%.

  2. Description of Pack.

  3. Sealing quality- Sealing roller Temp (170-190ºC).

  4. Number of tablets in pack (count).

  5. Leak Test (For 10’s).

  6. Attachment: Pack Style 10’s.

Sampling location

Samples were taken from the packing belt.

Sampling Plan and Testing

Sampling interval

Samples were taken at initial, middle and end of packing.

Number of samples, sampling quantity and testing

2 packs of 10’s was taken at initial, middle and end from the packing belt. Tests were performed on composite sample: Description of pack, Sealing quality, Number of tablets in pack (count), Leak test (For 10’s only).

Table 3

Acceptance criteria for packing

(I) Description of pack 10 Tablets
(II) Cartons fill quantity 10 Blister
(III) Number of tablets in pack during packing 10 tablets
(IV) Sealing quality Properly sealed
(V) Leak Test No Blister shall fail

Results and Discussion

Process validation of Prasugrel hydrochloride tablets Batch-1, Batch-2, and Batch-3 (Batch size: 10, 00, 000 tablets) had been carried out as per approved validation protocol and sampling plan. All the procedures carried out as per specifications for blend, core tablet and coated tablet along with critical step of manufacturing such as milling, blending, lubrication, compression and packing.

Table 4

Finished product analysis

Parameter Specification Bulk Tablets after Inspection
Observation
Batch-1 Batch-2 Batch-3
Description Yellowish beige color, oval shaped, film coated tablets with logo engraved on one side and plain on other side. Complies Complies Complies
Identification (by HPLC) The retention time of major peak obtained in test solution should correspond to the chromatogram of the standard solution in the assay. Complies Complies Complies
Average weight 310.0 mg ± 2.0% 307.3 mg 304.3 mg 310.1 mg
Thickness 4.4 mm ± 0.2 mm 4.6 mm 4.6 mm 4.6 mm
Uniformity of dosage units The acceptance value (AV) for 10 units should be NMT or equal to 15.0 8.1 9.7 2.9
Disintegration Time Not more than 30 minutes 6 min.34 sec 6 min. 59 sec 6 min.12 sec
Weight built Up Upto 2.9 to 3.0% 2.9 2.9 3.0
Dissolution (by HPLC) NLT 70.0% of the labeled amount of Prasugrel hydrochloride is dissolved in 30 min. 101.0% 100.1% 87.2% 94.5% 86.6% 94.9%
100.7% 96.1% 76.9% 95.3% 71.0% 80.8%
85.5% 91.1% 109.6% 92.4% 76.0% 83.2%
Assay (% Label Claim):Prasugrel hydrochloride ContentClaim:10 mg/tablet (5% overages) NLT 97.0% and NMT 110.0% of the labeled amount of Prasugrel hydrochloride 98.9% 100.0% 99.9%

Packing Process

After the inspection, the coated tablets were packed in the blisters on blister packing machine as per the BPR. The tablets were packed in 10’s blister pack. The packing operation was monitored by sampling and testing the packs at initial, middle and end of packing operation. The results are summarized in below Table 5.

Table 5

Packing process

Parameters Specification Batch-1 Batch-2 Batch-3
Description For information Complies Complies Complies
Sealing quality Properly sealed Complies Complies Complies
Count 10 10 10 10
Leak Test Must be intact Pass Pass Pass

Summary & Conclusion

On evaluation of results from three batches of “Prasugrel hydrochloride tablet 10 mg”, there was no significant variation between batch to batch and all the process variables were studied and therefore it can be concluded that the process of Prasugrel hydrochloride tablets for three batches stands validated. The results of all critical stage were found within the standard specification and acceptance criteria mentioned in the process validation protocol and finished product specification.

Hence manufacturing process of “Prasugrel hydrochloride tablet 10 mg” is considered validated and approved for routine production.

Source of Funding

None

Conflict of Interest

None

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