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Software Validation Periodic Review: Prevent Your Risks

Written by Sware Team | September 10, 2025

In the highly regulated life sciences industry, maintaining validated systems is not a one-time effort but an ongoing commitment. Software validation periodic reviews are critical in ensuring that computerized systems remain compliant, secure, and effective throughout their lifecycle. This comprehensive guide explores what periodic reviews entail, why they're essential, and how organizations can implement them effectively to maintain regulatory compliance while optimizing system performance. Understanding these practices is crucial for companies seeking to maintain GxP validation services that meet evolving regulatory standards.

What is a periodic review in a computerized system validation? 

A software validation periodic review is a systematic evaluation of validated computerized systems to verify they continue to operate in a validated state over time. It's a structured assessment that examines whether systems still meet their intended purpose, comply with current regulations, and maintain data integrity despite changes in technology, processes, or regulatory requirements.

These reviews serve as crucial checkpoints in the system lifecycle, allowing organizations to systematically evaluate their validated systems against established requirements and current regulatory standards. By regularly assessing system performance, documentation, and compliance status, companies can identify potential issues before they become significant problems.

Periodic reviews bridge the gap between initial validation and revalidation, ensuring that systems maintain their validated state even as they evolve through updates, patches, and configuration changes. They help organizations demonstrate to regulators that they support effective control over their computerized systems throughout their operational lifecycle. This approach aligns with best practices for risk assessment for computer validation systems.

What is the purpose of a software validation periodic review in CSV?

Periodic validation reviews serve several critical purposes within Computerized System Validation (CSV) frameworks:

Regulatory compliance is the primary driver for periodic reviews. Regulatory agencies like the FDA, EMA, and MHRA expect life sciences companies to maintain validated systems throughout their lifecycle. For instance, FDA's 21 CFR Part 11 requires organizations to verify that electronic record systems remain validated over time. Periodic reviews provide documentary evidence of this ongoing compliance.

Risk management is another key purpose. As systems age, new risks may emerge from technology changes, regulatory updates, or evolving business needs. Periodic reviews help identify and mitigate these risks before they impact product quality or patient safety. By systematically evaluating systems based on risk level, organizations can allocate resources where they're most needed.

System integrity maintenance is essential as software systems naturally evolve. Updates, patches, and configuration changes can subtly alter system functionality. Periodic reviews ensure that these changes haven't compromised the validated state of the system, preserving data integrity and system reliability.

Continuous improvement opportunities often emerge during periodic reviews. Organizations can identify enhancements that improve efficiency while maintaining compliance by evaluating system performance, user feedback, and incident reports. This proactive approach prevents systems from becoming outdated or inefficient.

Documentation currency is maintained through periodic reviews, ensuring validation documents accurately reflect the current system state. This prevents the dangerous situation where actual system operations diverge from documented procedures and controls. This comprehensive approach complements the shift from traditional validation to CSA vs CSV methodologies.

What are the elements that should be reviewed?

A comprehensive periodic review should evaluate several key components:

  1. System documentation, including the validation master plan, user requirements, functional specifications, and validation protocols
  2. Change control records documenting all modifications since the last review
  3. System performance metrics and incident reports
  4. User access controls and security measures
  5. Audit trails and data integrity controls
  6. Training records to ensure users remain qualified
  7. Supplier assessments and vendor updates
  8. Standard Operating Procedures (SOPs) related to the system
  9. Backup and recovery processes
  10. Current regulatory requirements and industry standards to identify any gaps

Each element provides insight into different aspects of system health and compliance, creating a complete picture of the system's validated status.

Key advantages of software periodic validation reviews

Implementing regular validation reviews offers significant benefits for life sciences organizations:

  1. Ensuring long-term compliance: Regular reviews help maintain alignment with the FDA, EMA, and other regulatory bodies, reducing the risk of compliance violations and penalties.
  2. Risk-based approach: It allows companies to prioritize validation efforts based on system risk, focusing resources where they are needed most instead of applying a one-size-fits-all approach.
  3. Audit readiness: It allows companies to prioritize validation efforts based on system risk, focusing resources where they are needed most instead of applying a one-size-fits-all approach.
  4. Cost efficiency: It reduces the need for frequent full revalidations, lowers operational costs, and prevents disruptions due to last-minute compliance fixes.
  5. System performance optimization: Periodic reviews ensure validated systems function as expected, identifying outdated configurations, inefficiencies, and technical risks that could impact operations.

Who is responsible for completing the periodic review?

Effective periodic reviews require involvement from multiple stakeholders across the organization. Understanding these roles and responsibilities is crucial for successful implementation:

Management and oversight

  • Senior Management 

Senior Management bears ultimate responsibility for ensuring systems remain validated. They approve validation policies, provide necessary resources, and are accountable for compliance with regulatory requirements. Their commitment sets the tone for the organization's validation culture and ensures periodic reviews receive appropriate priority.

  • Quality Assurance (QA)

Quality Assurance (QA) teams typically oversee the periodic review process, ensuring it follows established procedures and meets regulatory requirements. They review and approve validation documentation, participate in risk assessments, and verify that appropriate corrective actions are implemented when issues are identified. QA serves as the independent verification that validation activities maintain compliance.

Review Execution Team

  • System Owners

System Owners usually coordinate periodic reviews for their systems, schedule activities, gather documentation, and ensure completion of required assessments. They understand how the system is used in daily operations and can identify potential issues that might not be apparent from documentation alone. Their operational knowledge provides crucial context for the review.

  • IT & Security Teams

IT & Security Teams evaluate technical aspects of the system, including security controls, data backup processes, and system architecture changes. They assess whether system modifications have maintained the validated state and whether current technology supports regulatory requirements. Their technical expertise ensures that the underlying infrastructure remains compliant.

  • Process Owners 

Process Owners provide input on whether the system continues to meet business requirements and support efficient processes. They identify operational issues, suggest improvements, and evaluate the impact of potential system changes on business operations. Their perspective ensures that compliance activities remain aligned with business needs.

This cross-functional approach ensures that periodic reviews evaluate systems from multiple perspectives, creating a comprehensive assessment of validation status.

Periodic validation review process: how to perform it step by step

Implementing effective periodic reviews requires a structured approach. Here's a step-by-step process:

1. Identify which systems require periodic validation review

Begin by cataloguing all computerized systems and classifying them based on their GxP impact. Not all systems require the same level of scrutiny—focus on those directly affecting product quality, patient safety, or data integrity. Evaluate each system's risk profile, considering factors like system complexity, customization level, and direct impact on regulated processes.

Ensure your review scope aligns with regulatory requirements from agencies governing your operations. For pharmaceutical companies, this typically includes FDA 21 CFR Part 11, EU Annex 11, GAMP 5 guidelines, and ICH Q9 for risk management. Medical device manufacturers must consider ISO 13485 requirements alongside regional regulations.

The identification process should document the rationale for including or excluding systems from periodic review requirements, creating a defensible approach for regulators. The modern approach to computer software assurance can help guide this classification process.

2. Gather validation documentation

Collect comprehensive documentation related to the system's validation status. This includes the original validation package (validation plan, requirements specifications, design documents, test protocols, and final validation report), along with any subsequent revalidation documentation.

Gather change control records documenting all modifications since initial validation or the last review. These records provide critical evidence that changes were evaluated adequately for validation impact and appropriately tested.

Review system incident reports, deviation logs, and CAPAs (Corrective and Preventive Actions) to understand any operational issues that might indicate validation weaknesses. Include audit reports from internal quality audits or regulatory inspections that involved the system.

This documentation collection establishes the foundation for comparing the system's current state and its validated baseline. Leveraging electronic validation software can significantly streamline this documentation-gathering process.

3. Analyze system changes and updates

Systematically evaluate all changes made to the system since its last validation or review. Examine software patches, version upgrades, configuration changes, and hardware modifications. Verify that each change was assessed adequately for validation impact through your change control process.

For each change, confirm that appropriate testing was performed and documented to maintain the validated state. This verification ensures that incremental changes haven't collectively degraded system validation without proper controls.

Assess whether vendor-supplied components have been updated and whether those updates affected system functionality. Check if any third-party integrations have changed in ways that might impact system performance or compliance.

This analysis identifies any gaps in change management that might have compromised the system's validated state. The findings should be documented as part of your GxP validation services process.

4. Conduct risk assessment 

Evaluate whether current system risks align with previous assessments, considering how system usage, regulatory requirements, or business processes may have evolved. Update risk documentation to reflect the current understanding of system criticality and potential failure modes.

Identify any new risks introduced by system changes, technology evolution, or expanding regulatory requirements. Determine whether existing controls adequately mitigate these risks or if additional measures are needed.

Assess whether the system's risk profile has changed, potentially requiring adjustments to the validation approach or review frequency. This risk-based evaluation ensures that validation activities remain proportional to system criticality.

5. Perform re-validation (if needed)

Based on the risk assessment and change analysis, determine whether additional validation activities are required. Documentary evidence from the change control process may be sufficient for minor changes with low risk. Further testing may be necessary for significant changes or newly identified risks.

If revalidation is warranted, develop appropriate test scripts that verify system functionality, focusing on affected areas while ensuring overall system integrity. Execute these tests in a controlled environment, documenting results and resolving discrepancies.

This targeted approach to revalidation addresses specific gaps without unnecessarily repeating validation activities for unchanged components.

6. Prepare a validation periodic review report

Document the review process in a comprehensive report summarizing findings, risk assessments, and conclusions regarding the system's validated state. Include an executive summary stating whether the system remains validated or requires remediation.

Detail deviations from the expected validation status and document corrective actions to restore compliance. Provide objective evidence supporting conclusions, referencing specific documentation, test results, or risk assessments.

This report serves as documentary evidence for regulators that the organization maintains effective oversight of validated systems throughout their lifecycle.

7. Establish the next review cycle and corrective actions

Establish an appropriate timeframe for the following periodic review based on the system's risk profile and review findings. Document this schedule in the system validation maintenance plan and ensure it's tracked through your quality management system.

Develop detailed action plans for addressing any identified deficiencies, assigning responsibilities, and timelines for completion. Ensure these actions are tracked to completion through your quality management system.

This forward-looking planning maintains the continuity of validation activities and prevents compliance gaps between reviews.

What is the average time interval for conducting periodic reviews?

The appropriate frequency for periodic reviews varies based on several factors, with risk being the primary consideration:

High-risk systems that directly impact product quality or patient safety typically require reviews every 12 months. These include manufacturing execution systems, laboratory information management systems, and electronic batch record systems.

Medium-risk systems that indirectly support regulated processes are generally reviewed every 18-24 months. These might include document management systems, training management systems, and inventory control systems.

Low-risk systems with minimal GxP impact may be reviewed every 24-36 months. These typically include administrative systems that manage non-critical data or processes.

Beyond risk classification, these are some other factors influencing review frequency:

  • System complexity and customization level
  • Rate of system changes and updates
  • History of incidents or compliance issues
  • Regulatory focus in your specific industry segment
  • Changes in applicable regulations or guidance

Many organizations establish a baseline review cycle in their validation policies, then adjust frequency based on system-specific considerations. This  risk-based approach optimizes resource allocation while maintaining appropriate oversight.

Practical uses of software validation periodic reviews

Understanding how periodic reviews apply in real-world scenarios helps demonstrate their practical value:

  • Pharmaceutical Manufacturing Compliance: Ensures that validated systems in drug production remain compliant with FDA, EMA, and MHRA regulations over time.
  • Medical Device Software Validation: Maintains the accuracy and security of electronic records used in clinical trials, ensuring compliance with 21 CFR Part 11.
  • Cybersecurity & Data Integrity Checks: Identifies and mitigates unauthorized access attempts, data breaches, or integrity risks in validated systems. Ensures that security controls, encryption, and user access comply with FDA, EMA, and ISO standards.

Automating software validation periodic reviews: Sware success case

Manual periodic reviews can be resource-intensive and prone to inconsistency. Modern validation management platforms like Sware's Res_Q solution transform this process through automation and centralized validation management.

A leading biopharmaceutical company leveraging gene therapy to develop innovative medicines partnered with Sware to implement Res_Q for their validation management needs. As they implemented more SaaS applications into their product development technology stack, their validation requirements increased significantly:

  • They managed between 25 and 30 system releases per year, requiring validation
  • Three full-time employees (FTEs) had to be reassigned from critical work to focus solely on validation
  • Manual, paper-based processes significantly impacted day-to-day operations
  • Product development timelines were slowed by extensive validation requirements
  • Siloed validation efforts created visibility gaps and compliance challenges

After implementing Sware's Res_Q platform, a cloud-native, fully scalable solution for validation and GxP compliance, the company realized substantial benefits:

  • Saved approximately 102 FTE hours per validation project
  • Freed their core team to focus on high-priority, revenue-generating tasksEliminated all paper-based
  • processes, transitioning to a paperless end-to-end ecosystem
  • Gained centralized management of all validation processes in one location
  • Improved visibility, ease of access, and deeper insights about process and quality
  • Maintained continuous audit readiness and regulatory preparedness
  • Enabled rapid scaling and flexibility as new requirements emerged

According to their Director of Clinical and Development Systems, "Sware is a rare solutions provider in that it provides disruptive technology and a team of true functional experts. Sware provides the platform and people needed to excel at validation, saving us time and money and making our lives considerably easier."

The company now maintains a single point of visibility into validation status across their entire organization. Their ongoing partnership with Sware's expert team ensures they have the compliance expertise needed across applications while accelerating system adoption. This approach to validation management perfectly aligns with best practices for periodic reviews, ensuring systems remain validated through continuous oversight rather than reactive remediation.

FAQs

What are the periodic reviews of validated systems FDA?

The FDA expects periodic reviews to maintain systems in a validated state. While not explicitly mandated in all regulations, they're considered an industry best practice aligned with the FDA's quality system expectations. FDA inspectors typically look for evidence that companies systematically evaluate whether computerized systems remain validated throughout their lifecycle, particularly for systems subject to 21 CFR Part 11 requirements.

What is the periodic review of IT systems?

Periodic review of IT systems involves systematically evaluating the technology infrastructure supporting validated applications. These reviews assess hardware configurations, operating systems, network components, and security controls to verify they continue to provide a compliant computing environment. IT system reviews focus on technical aspects like patch management, infrastructure changes, security vulnerabilities, and technological obsolescence that could impact the validated state of applications running on the infrastructure.

What is the periodic review method? 

The periodic review method is a structured approach to evaluating validated systems at predefined intervals. It follows a documented process that examines system changes, assesses risks, reviews performance metrics, evaluates documentation currency, and verifies continued compliance with applicable regulations. Unlike continuous monitoring, which tracks system parameters in real time, the periodic review method provides comprehensive assessments at scheduled intervals, creating a holistic view of validation status.

What is the period review cycle? 

The period review cycle defines the timeframe between systematic evaluations of validated systems. Organizations typically establish risk-based cycles ranging from 12 to 36 months, depending on system criticality. The cycle includes planning, execution, reporting, and implementation of corrective actions. Each cycle builds upon previous reviews, creating a continuous chain of evidence demonstrating ongoing validation maintenance throughout the system's lifecycle.

What is the difference between periodic review and continuous review?

Periodic reviews occur at scheduled intervals (annually, biennially) and provide a comprehensive assessment of all validation aspects. They create formal documentation demonstrating validation status and typically involve cross-functional participation. Continuous reviews happen through ongoing monitoring and immediate evaluation of changes as they occur. They focus on specific parameters rather than comprehensive assessment and are often less formally documented than periodic reviews. Most effective validation programs incorporate both approaches, using continuous monitoring to identify emerging issues while periodic reviews provide comprehensive validation assurance.

What is the periodic validation review report?

The periodic validation review report documents the assessment, findings, and conclusions regarding a system's validated state. It typically includes an executive summary stating whether the system remains validated, documentation of the review process and scope, assessment of changes since the last review, evaluation of continued compliance with requirements, risk assessment updates, a summary of testing results (if performed), identification of any gaps or deficiencies, corrective action plans, and recommendations for the next review cycle. This report serves as critical evidence for regulators that the organization maintains effective control over validated systems throughout their lifecycle.