gmp training synopsis · “management review should provide assurance ... equipment limitations...
TRANSCRIPT
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National Validation Forum
Control Strategy
John Montalto
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Linking ICH Q8, Q9 and Q10 to develop a control strategy
Identify all quality attributes based on current process
and product understanding
Risk assessments – identify Critical Quality Attributes
(CQAs)
Control Strategy – design, develop and implement
Continual improvement
Dynamic process as product knowledge and process understanding increase
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Control Strategy – what’s important?
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Risk assessment – identify Critical Quality Attributes (CQAs)
Appearance Performance Comfort Stopping Heating/
Cooling Transmission
Severity (impact on quality)
L H L H L L
Probability (risk likelihood)
L M M
M
L M
Detectability H M H
M
H H
Total L H L
H
L L
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Risk assessment – identify CQAs
Appearance Performance Comfort Stopping Heating/ Cooling
Transmission
Colour
Brake assembly
Acceleration
Suspension
Seat covering
Tyres
Fuel type
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Developing Control Strategy
Stopping
Brake assembly
Stopping
Vehicle gradually stops by application of a foot peddle at 10m/s/s
Control Strategy
Qualification of manufacturing equipment
Assembly Process Validation
Control Strategy
Raw materials, lubricants and oils
Feedback systems
Maintenance Life Plans - Brake pressure switch calibration, inspection regime, anchor bolts, return springs, adjustor screws
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Validation context
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What is Control Strategy?
“It is everything that we do already to control the process to produce acceptable quality product”
• A great starting point for validation
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An ongoing process
Jacques Morenas, PIC/S Chair, April 2011
“While design space is optional, Control Strategy is never optional”
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An ongoing process
ICH Q10 The Pharmaceutical Quality System
“Management review should provide assurance that process performance and product quality
are managed over the lifecycle.”
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CQA and CPP
• A CQA is a physical, chemical, biological, or microbiological property or characteristic that should be within an appropriate limit, range, or distribution to ensure the desired product quality
• Drug substance, excipients, intermediates
Critical Quality Attribute
• A process parameter whose variability has an impact on a critical quality attribute and therefore should be monitored or controlled to ensure the process produces the desired quality
Critical Process Parameter
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Knowledge
• Product understanding is required to design the process
• CQAs define the process
Product
Process
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Quality Risk Management
Product knowledge drives Process development
Develop Control Strategy
Continual improvement
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An ongoing process
Annex 15, PIC/S Guide to Good Manufacturing Practice for Medicinal Products Annexes, January, 2009
“It is a requirement of GMP that manufacturers identify what validation work is needed to prove control of the critical aspects of their particular
operations.”
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Control Strategy
• Planned set of controls
• Derived from current product and process understanding
– Assurance of process performance and product quality
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Control Strategy is not…
Is NOT a new concept
Your products and processes already have control strategies
Control Strategy Is NOT just a list
of specifications for QC testing requirements
Control Strategy
Is NOT optional
Control Strategy
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Implement Control Strategy
• Every process and product has an associated control strategy:
– Overall strategy for a product
– Discrete control strategy for an operation
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Various approaches
Control strategy approaches
• In-process testing
• Real time release testing
• End-product testing
Localised Control strategy approaches
• Controls on raw and starting material attributes, intermediates and reagents
• Sequence of purification steps
• Order of addition of reagents
• Training and personnel matters
• Gowning and clean room behaviours
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Batch release
• Control Strategy and batch release decisions are separate
• Control Strategy is not the only consideration when batch release decisions are determined
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Establish, document, implement, maintain
Change management
Knowledge management
Process understanding and experience
Product knowledge development and technology transfer
Dim
inish
ing va
riable
s
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Traditional approach
• Emphasis on end-product testing
• Operating ranges set on observed process data
– Generally narrow target range
– Process capability (or lack of capability)
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In process approach
• In process determination that a CQA is within an appropriate range or limit
• A high degree of Assurance
– Documented evidence
• In the not so distant future
– Process Analytical Technologies (PAT)
– Real Time Release Testing (RTRT)
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What’s your perspective?
Industry Regulators
Analytical testing sensitivity Has risk been adequately identified and controlled?
Equipment limitations Quality Management System adequacy to support the Control Strategy
Cost Locally, compliance with Annex 15
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Summary
• Product Quality and Process Performance Monitoring:
– Ensure a state of control is maintained (control inter and intra batch variability)
– Plan and execute a system for monitoring CQAs and CPPs
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Summary
Use QRM to establish Control Strategy
Control Strategy facilitates timely feedback/feed forward and appropriate CAPA
Provide tools for measurement and analysis of parameters and attributes within Control Strategy
Identify sources of variation affecting process performance and product quality – focus continuous improvement here
Use internal and external feedback
Provide and manage knowledge to enhance process understanding
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National Validation Forum
Any answers?
John Montalto