“PROCESS SCALE UP AND CRITICAL CONTROL PARAMETERS OF PROCESS OF SOLID AND SOFTGEL DOSAGES”

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Presentation transcript:

“PROCESS SCALE UP AND CRITICAL CONTROL PARAMETERS OF PROCESS OF SOLID AND SOFTGEL DOSAGES”

CRITICAL PROCESS PARAMETERS Control of critical process parameters during processing is the basic need of a validated process. If critical parameters will not be controlled, It will contribute to the variability of the end product (TQM)

MANUFACTURING PROCESS FOR TABLET DOSAGE FORM TABLET Granulation Blending Compression Coating

Granulation is the process in which powder particles are made to adhere to form agglomerates called granules GRANULATION Granules being denser than the powder occupy lesser volume per unit weight therefore they are more convenient for storage and shipment. For slightly hygroscopic material granulation reduce the possibility of caking. As granules can absorb more moisture yet retain their flow ability because of their size To prevent segregation of the constituents of the mix To improve the flow properties of the mix To change the particle size distribution so that bulk density can be improved To increase apparent density of the powder, Granulation can improve or modify drug release profile. WHY GRANULATION?

INITIAL MIXING PARAMETERS  Capacity of RMG  Mixing Time  Mixing Speed  Capacity of FBP  Mixing Time  CFM OF Blower  Capacity of Blender  Mixing Time  Blender RPM Mixing RMG FBPBLENDER

DRY GRANULATION Sieve /Mesh size. Capacity of Blender Mixing Time Blender Speed (RPM) Roller pressure Screw feeder RPM Pressure roller speed % Ratio of fines and granules Dry Granulation Parameters

WET GRANULATION Wet granulation is the most commonly used method of granulation in which binder solution is added to the dry mix Mechanisms of Granules Formation Nucleation: Granulation starts with particle to particle contact and adhesion due to liquid bridges.Number of particles will join to form the pendular state Nucleation: Granulation starts with particle to particle contact and adhesion due to liquid bridges.Number of particles will join to form the pendular state Transition: Nuclei can grow in two possible ways Either single particles can be added to the nuclei by pendular bridges or two or more nuclei may combine the combined nuclei will be reshaped by the agitation of the bed Transition: Nuclei can grow in two possible ways Either single particles can be added to the nuclei by pendular bridges or two or more nuclei may combine the combined nuclei will be reshaped by the agitation of the bed Ball Growth: Granule growth produces large spherical granules and the mean particle size of the granulating system will increase with time and agitation Ball Growth: Granule growth produces large spherical granules and the mean particle size of the granulating system will increase with time and agitation

CRITICAL PARAMETERS DURING BINDER PREPARATION Temperature of binder solution Capacity of Paste kettle Total time taken for preparation of binder solution Viscosity of binder if required

WET GRANULATION PARAMETER  Capacity of FBP  CFM OF Blower  Product Temperature  Peristaltic Pump RPM  Flow rate/Spray Pattern  Atomizing air pressure  Inlet Air Temperature Mass Mixer FBP/FBD  Capacity of RMG  Mixer speed /Chopper speed  Binder addition time  Effective kneading time  Amperage load of mixer/Chopper  Capacity of Mass Mixer  Binder addition time  Mixing Time  Mixer Speed RMG Wet Granulation

ONE-POT TECHNOLOGY Mixing, Granulating and Drying in ONE processing vessel In one-Pot technology mixing, granulation and drying options integrated into one processing vessel One-Pot Processing option: Application of a vacuum within the bowl to dry the wet mass allows drying of pharmaceutical compounds at low temperature

The vacuum drying process can be enhanced by the addition of a small amount of gas (Transflo™), passing through the product during the drying phase resulting in shorter drying times and lower residual moisture content of the final product To further enhance the drying process, microwaves should be added as an additional energy source - microwave drying is the fastest drying technique available in One-Pot processing Through accurate control of product temperature and absorbed / reflected microwave power, this technology is ideal for fast processing of pharmaceutical product and is the unique one-pot process allowing higher ‘Product Quality’ & direct ‘Scale Up’ ONE-POT TECHNOLOGY

CRITICAL PARAMETERS DURING DRYING Inlet air temperature Outlet air temperature Bed temperature Exhaust flap opening /CFM Drying time LOD of granules (After complete drying)

CRITICAL PARAMETERS DURING BLENDING /MIXING Blending/Mixing Type of blender/Mixer Capacity of Blender/Mixer Blender RPM Blending time

CRITICAL PARAMETERS DURING COMPRESSION Speed of machine Compression force Type of Feeder Feeder speed Tablet weight Tablet thickness Tablet hardness Tablet DT Tablet friability Tablet diameter/shape

Spray Drying Process Spray drying is a very fast method of drying due to the very large surface area created by the atomization of the liquid feed. As a consequence, high heat transfer coefficients are generated and the fast stabilisation of the feed at moderate temperatures makes this method very attractive for heat sensitive materials. Spray drying is a very fast method of drying due to the very large surface area created by the atomization of the liquid feed. As a consequence, high heat transfer coefficients are generated and the fast stabilisation of the feed at moderate temperatures makes this method very attractive for heat sensitive materials. SPRAY DRYING PROCESSOR

Spray Drying Process There are four basic stages of the spray drying technique: 1. Atomization: A liquid feed stock is atomized into droplets via either a nozzle or a rotary atomizer. Nozzles use pressure or compressed gas to atomize the feed while a rotary atomiser use a wheel rotating at high speed. 2. Drying: Heated process gas (air or nitrogen) is brought into contact with the atomized feed using a gas disperser – leading to evaporation. 3. Particle formation: As the liquid rapidly evaporates from the droplet, a particle forms and falls to the bottom of the chamber. 4. Recovery: The powder is recovered from the exhaust gases using a cyclone or bag filter. The whole process generally takes no more than a few seconds.

SOLID DOSAGE PROCESSING: CONTAINED MATERIALS HANDLING Containment is the area separation from Product to Personal/ Environmental area by a barrier to prevent contamination from one area into the other.

In-depth understanding of containment requirements In-depth understanding of containment requirements Knowledge of the specific needs both in primary and secondary production Knowledge of the specific needs both in primary and secondary production t [ h ] RDI 2 RDI ADI tablettingcontrolgranul.control tabletting Have you ever calculated the real operator exposure?

For the pharmaceutical Industry the product specific limit for the accepted daily exposure to the operator of this product is the OEL (Occupational Exposure Limit) For the pharmaceutical Industry the product specific limit for the accepted daily exposure to the operator of this product is the OEL (Occupational Exposure Limit) Calculation of the OEL: OEL = NOEL (mg/kg/day) x BW (kg) V (m³/day) x SF1 x SF2 x … 100% 0% % reacting individuals pharmacological effect NOEL (No Observable Effect Level) toxicological effect ED50 50% LD50 Dosage (mg/kg/day) therapeutical window Key: OEL = Occupational Exposure Limit NOEL = No Observable Effect Level BW = Body Weight V = Breathing Volume SF = Safety Factor Examples: OEL - Paracetamol = 10 mg/m³ OEL - Ethinyl Estradiol = µg/m 3

CRITICAL PARAMETERS DURING COATING Inlet air temperature Outlet / exhaust air temperature Bed Temperature PAN RPM Pump RPM /Flow rate /Spray Pattern Atomizing air pressure Spray Gun Distance to the Bed Weight gain / % Weight build up

TYPES OF TABLETS Plain/Uncoated Coated Press coated and multilayered Sustained release Effervescent Gelatin Coated Dispersible / Chewable Buccal /Sublingual Multiple Kits

MANUFACTURING PROCESS FOR SOFTGEL DOSAGE FORM Medicament Gelmass Prep. Drying Encapsulation SOFTGEL

CRITICAL PARAMETERS DURING GELMASS PREPRATION Reactor Capacity Mixer Speed (RPM) Hot Water Temperature Vacuum Mixing Time Temperature of Gelatin Storage Vessel

CRITICAL PARAMETERS DURING ENCAPSULATION Die Size Machine Speed (Die roll RPM) Gelatin Ribbon thickness Drum Cooling air Temperature Capsule Sealing / wedge Temperature Spreader Box Temperature Gravity Feed Pipes Temperature Die Roll Pressure Environmental Monitoring (Temp. & RH)

CRITICAL PARAMETERS DURING DRYING Temperature and RH are critical parameters during drying of soft gelatin capsule.Temperature and RH are critical parameters during drying of soft gelatin capsule. For drying of Soft gelatin capsule specially designed drying area is being used in which temperature in maintained below 25ºC and % RH NMT 30%For drying of Soft gelatin capsule specially designed drying area is being used in which temperature in maintained below 25ºC and % RH NMT 30%