ASTM E2500 Approach to Validation

ASTM E2500, the Standard Guide for Specification, Design, and Verification of Pharmaceutical and Biopharmaceutical Manufacturing Systems and Equipment, is intended to “satisfy international regulatory expectations in ensuring that manufacturing systems and equipment are fit for the intended use and to satisfy requirements for design, installation, operation, and performance.”

The ASTM E2500 approach is a comprehensive framework for specification setting, design, and verification of pharmaceutical and biopharmaceutical manufacturing systems and equipment. It emphasizes a risk- and science-based methodology to ensure that systems are fit for their intended use, ultimately aiming to enhance product quality and patient safety.

Despite its 17-year history, it is fair to say it is not the best-implemented standard. There are still many unrealized opportunities and some major challenges. I don’t think a single organization I’ve been in has fully aligned, and ASTM E2500 can feel aspirational.

Key Principles

1. Risk Management: The approach integrates risk management principles from ICH Q8, Q9, and Q10, focusing on identifying and mitigating risks to product quality and patient safety throughout the lifecycle of the manufacturing system.
2. Good Engineering Practices (GEP): It incorporates GEP to ensure systems are correctly designed, installed, and operated.
3. Flexibility and Efficiency: It strives for a more flexible and efficient organization of verification activities that can be adapted to each project’s specific context.

Know your Process

Regulatory agencies expect drugmakers to persuade them that we know our processes and that our facilities, equipment, systems, utilities, and procedures have been established based on concrete data and a thorough risk assessment. The ASTM E2500 standard provides a means of demonstrating that all of these factors have been validated in consideration of carefully evaluated risks.

What the Standard Calls for

Four Main Steps

1. Requirements: Define the system’s needs and critical aspects. Subject Matter Experts (SMEs) play a crucial role in this phase by defining needs, identifying critical aspects, and developing the verification strategy.
2. Specification & Design: Develop detailed specifications and design the system to meet the requirements. This step involves thorough design reviews and risk assessments to ensure the system functions as intended.
3. Verification: Conduct verification activities to confirm that the system meets all specified requirements. This step replaces the traditional FAT/SAT/IQ/OQ/PQ sequence with a more streamlined verification process that can be tailored to the project’s needs.
4. Acceptance & Release: Finalize the verification process and release the system for operational use. This step includes the final review and approval of all verification activities and documentation.

Four Cross-Functional Processes

1. Good Engineering Practices (GEP): Ensure all engineering activities adhere to industry standards and best practices.
2. Quality Risk Management: Continuously assess and manage risks to product quality and patient safety throughout the project.
3. Design Review: Regularly reviews the system design to ensure it meets all requirements and addresses identified risks.
4. Change Management: Implement a structured process for managing system changes to ensure that all modifications are appropriately evaluated and documented.

Applications and Benefits

• Applicability: The ASTM E2500 approach can be applied to new and existing manufacturing systems, including laboratory, information, and medical device manufacturing systems.
• Lifecycle Coverage: It applies throughout the manufacturing system’s lifecycle, from concept to retirement.
• Regulatory Compliance: The approach is designed to conform with FDA, EU, and other international regulations, ensuring that systems are qualified and meet all regulatory expectations.
• Efficiency and Cost Management: By focusing on critical aspects and leveraging risk management tools, the ASTM E2500 approach can streamline project execution, reduce time to market, and optimize resource utilization.

The ASTM E2500 approach provides a structured, risk-based framework for specifying, designing, and verifying pharmaceutical and biopharmaceutical manufacturing systems. It emphasizes flexibility, efficiency, and regulatory compliance, making it a valuable tool for ensuring product quality and patient safety.

What Makes it Different?

	ASTM E2500	The more traditional approach
Testing Approach	It emphasizes a risk-based approach, focusing on identifying and managing risks to product quality and patient safety throughout the manufacturing system’s lifecycle. This approach allows for flexibility in organizing verification activities based on the specific context and critical aspects of the system.	Typically follows a prescriptive sequence of tests (FAT, SAT, IQ, OQ, PQ) as outlined in guidelines like EU GMP Annex 15. This method is more rigid and less adaptable to the specific needs and risks of each project.
Verification vs Qualification	The term “verification” encompasses all testing activities, which can be organized more freely and rationally to optimize efficiency. Verification activities are tailored to the project’s needs and focus on critical aspects.	Follows a structured qualification process (Installation Qualification, Operational Qualification, Performance Qualification) with predefined steps and documentation requirements.
Role of Subject Matter Experts	SMEs play a crucial role from the start of the project, contributing to the definition of needs, identification of critical aspects, system design review, and development of the verification strategy. They are involved throughout the project lifecycle.	SMEs are typically involved at specific points in the project lifecycle, primarily during the qualification phases, and may not have as continuous a role as in the ASTM E2500 approach.
Integration of Good Engineering Practices	Offers greater flexibility in organizing verification activities, allowing for a more efficient and streamlined process. This can lead to reduced time to market and optimized resource utilization.	While GEP is also important, the focus is more on the qualification steps rather than integrating GEP throughout the entire project lifecycle.
Change Management	It emphasizes early and continuous change management, starting from the supplier’s site, to avoid test duplication and ensure that changes are properly evaluated and documented.	It emphasizes early and continuous change management, starting from the supplier’s site, to avoid test duplication and ensure that changes are properly evaluated and documented.
Documentation	Documentation is focused on risk management and verification activities, ensuring compliance with international regulations (FDA, EU, ICH Q8, Q9, Q10). The approach is designed to meet regulatory expectations while allowing for flexibility in documentation.	quires extensive documentation for each qualification step, which can be more cumbersome and less adaptable to specific project needs.

Opinion

I’m watching to see what the upcoming update to Annex 15 will do to address the difficulties some see between an ATSM E2500 approach and the European regulations. I also hope we will see an update to ISPE Baseline® Guide Volume 5: Commissioning and Qualification to align an approach.

ISPE Baseline® Guide Volume 5	ATSM E2500
Design inputs Impact assessment Design Qualification Commissioning Multiple trial runs to get things right IQ, OQ, PQ, and acceptance criteria GEP Scope and QA Scope overlapped Focused on Documentation Deliverables Change Management	Design inputs Design Review Risk Mitigation Critical Control Parameters define Acceptance Criteria Verification Testing Performance Testing GEP Scope and QA Scope have a clear boundary Process, Product Quality and Patient Safety Quality by Design, Design Space, and Continuous Improvement

To be honest I don’t think ATSM E2500, ISPE Guide 5, or anything else has the balance just right. And your program ends up being a triangulation between these and the regulations. And don’t even bring in trying to align GAMP5 or USP <1058> or…or…or…

And yes, I do consider this part of my 3-year plan. I look forward to the challenges of a culture shift, increased SME involvement, formalization of GEPs (and teaching engineers how to write), effective change management, timely risk assessments, and comprehensive implementation planning.