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
Drug Review18, 19, 20
Adverse drug reaction
CVS- Hypertension (8%), Hypotension (4%), Bradycardia and Peripheral edema (3%).
CNS-Headache (6%), Dizziness (4%), Fever and Extremity pain (3%).
Dermatologic rash (3%).
Gastrointestinal Haemorrhage.
Thrombotic Thrombocytopenic purpura.
Severe Neutropenia (low white blood cell).
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
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.
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
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.
Process Validation Includes Various Critical Process Parameters and Specifications
Table 1
Table 2
Sampling Plan and Testing
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
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.
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.