Document Control
| Item | Description | Item | Description |
| Course Code | RS-EO-VAL-2D | Version | 1.0 |
| Duration | 2 days (approx. 14 hours) | Delivery | Classroom / Virtual (with breakout exercises) |
| Target Audience | Sterilization engineers, QA/RA, validation personnel, auditors, service providers, technical experts-in-training | Prerequisites | Basic microbiology & QMS awareness recommended |
| Reference Standards | ISO 11137 series; ISO 11135:2014; ISO 11737 series; ISO 10993-7; ISO 13485 (as applicable) | Assessment | Knowledge checks, workshop outputs, optional quiz |
1. Course Overview
This 2-day program provides practical guidance to plan, execute, and sustain compliant sterilization validation and routine control for two widely used terminal sterilization technologies: radiation sterilization and ethylene oxide (EO) sterilization. The content is aligned to the key requirements and intent of ISO 11137 (Parts 1, 2 and 3) and ISO 11135:2014, with emphasis on:
- establishing and maintaining a validated process,
- effective routine monitoring and control, and
- maintaining effectiveness through change control, requalification, and product/facility lifecycle management.
2. Learning Objectives
- Explain the ISO 11137 and ISO 11135 process validation frameworks and how they integrate with an ISO 13485 QMS.
- Define product families, challenge/product configurations, and worst-case rationales for validation planning.
- Select and justify validation approaches (radiation: Method 1/VDmax/Method 2; EO: product/family approach) based on risk and evidence.
- Design a robust qualification strategy (IQ/OQ/PQ, including MPQ/PPQ where applicable) and define acceptance criteria.
- Establish routine control requirements: monitoring, release, alerts/actions, and periodic verification.
- Implement an effective ongoing effectiveness program: change control, revalidation triggers, bioburden/sterility assurance reviews, and trend analysis.
- Prepare audit-ready documentation packages, including protocols, reports, and objective evidence for conformity assessment.
3. Training Approach and Methods
- Instructor-led explanation with standard-aligned examples
- Group workshops (validation planning, acceptance criteria, decision trees)
- Case studies (realistic scenarios for deviations and changes)
- Short knowledge checks at the end of major modules
- Optional final quiz and discussion of answers
4. Detailed Training Content
A1. ISO Framework & Sterilization Validation Lifecycle (ISO 11137 / ISO 11135)
Suggested duration: 1.0-1.25 h
Learning outcomes:
- Differentiate validation, qualification, routine control, and ongoing process effectiveness activities.
- Explain key terms: sterilization process, SAL, bioburden, product family, load configuration, critical process parameters.
- Describe how sterilization requirements interface with QMS processes (design transfer, purchasing, production controls, CAPA, change control).
Content outline:
- Overview of terminal sterilization technologies and when each is applied (radiation vs EO).
- Sterility assurance concept: SAL, microbial inactivation, and sources of variability.
- ISO standard structure and intent: ISO 11137 Parts 1-3 and ISO 11135:2014 (high-level map).
- Validation lifecycle model: development, validation (IQ/OQ/PQ), routine control, maintenance, and change management.
- Regulatory and audit expectations: demonstrating objective evidence and traceability.
Workshop / exercise:
Short pre-assessment and group discussion: identify current gaps/risks in your facility’s sterilization lifecycle controls.
Expected outputs:
- List of site-specific learning goals
- Top 5 current challenges to address during the course
A2. Radiation Sterilization – Validation Planning (ISO 11137-1/-2/-3)
Suggested duration: 1.5 h
Learning outcomes:
- Define product family and select representative/worst-case configurations for dose setting and dose mapping.
- Select a dose setting method (e.g., Method 1, VDmax, Method 2) based on product characteristics and available data.
- Develop a validation plan that includes bioburden sampling, dose mapping, and verification dose experiments.
Content outline:
- Radiation process definition: modality (gamma/e-beam/x-ray), dose delivery, dose uniformity ratio (DUR) concept.
- Pre-validation inputs: product definition, packaging system, materials compatibility, and functional/performance considerations.
- Bioburden strategy (ISO 11737-1): sampling plan, lab controls, seasonal variation, and family grouping.
- Dose setting overview: method selection logic, assumptions, and data requirements (high-level).
- Dose mapping strategy: location selection, minimum/maximum dose, routine dosimeter locations, load patterns.
- Validation plan structure: responsibilities, risk assessment, acceptance criteria, and data integrity.
Workshop / exercise:
Workshop: build a product family and worst-case rationale. Draft a one-page radiation validation plan outline (dose setting + dose mapping).
Expected outputs:
- Product family definition and rationale
- Draft validation plan outline with acceptance criteria
A3. Radiation Sterilization – Qualification and Performance Qualification
Suggested duration: 1.25-1.5 h
Learning outcomes:
- Describe IQ/OQ/PQ expectations for radiation sterilization facilities and contract sterilizers.
- Define acceptance criteria for dose mapping and verification dose experiments.
- Assemble an audit-ready validation package (protocol + raw data traceability + report).
Content outline:
- IQ topics: equipment/specifications, calibration, dosimetry system qualification, software controls, safety interlocks.
- OQ topics: dose delivery characterization, conveyor settings (e-beam/x-ray), source/rack configuration (gamma), alarms, and process limits.
- PQ elements: dose mapping execution, verification dose experiment execution, and interpretation.
- Handling deviations: out-of-spec dose, dosimeter anomalies, load changes, and investigation approach.
- Validation report essentials: summary tables, justification of conclusions, and link to routine control plan.
Workshop / exercise:
Case study: review a simplified dose mapping data set and decide if acceptance criteria are met; identify missing evidence for an audit.
Expected outputs:
- Decision record with justification
- List of required objective evidence to complete the validation file
A4. Radiation Sterilization – Routine Control and Maintaining Effectiveness
Suggested duration: 1.5 h
Learning outcomes:
- Set up routine monitoring and control: dosimetry, process parameters, and release decisions.
- Define periodic dose audits and requalification triggers.
- Use trending and change control to maintain effectiveness through the product lifecycle.
Content outline:
- Routine control framework: process specification, routine monitoring, and product release.
- Routine dosimetry: placement, frequency, dosimeter handling, and acceptance criteria for minimum/maximum dose.
- Dose audit concepts: periodic verification of sterilization dose; handling shifts in bioburden/resistance trends.
- Process deviations and nonconforming product control: containment, disposition, and CAPA linkage.
- Maintaining effectiveness: change control triggers (packaging, density, pallet pattern, source movement, equipment changes), revalidation decisions.
- Management review inputs: KPI examples (dose excursions, audit results, CAPA, lab OOS rates).
Workshop / exercise:
Workshop: create a routine control plan and a requalification decision tree for common changes (packaging, load density, new product variant).
Expected outputs:
- Routine control plan template completed
- Requalification decision tree (site specific)
B1. EO Sterilization – Validation Planning (ISO 11135:2014)
Suggested duration: 1.5 h
Learning outcomes:
- Define the EO sterilization process and critical process parameters (CPPs) and their control strategy.
- Develop a product/load configuration strategy including worst-case selection and product families.
- Plan microbiological performance evaluation and define acceptance criteria for sterilization efficacy.
Content outline:
- EO process overview: conditioning, pre-vacuum, EO injection, exposure, post-vacuum/air washes, aeration.
- CPPs and their rationale: temperature, relative humidity, EO concentration, time, pressure, gas distribution, and load design.
- Product and load definition: packaging, lumens, absorbent materials, and load density considerations.
- Microbiology inputs: bioburden considerations, biological indicators (BIs) selection/placement rationale (high-level).
- Validation planning: protocol structure, worst-case rationale, sampling, and responsibilities (sterilizer, lab, QA).
- Data integrity and traceability: cycle records, sensor calibration, BI/CI control, and lab chain of custody.
Workshop / exercise:
Workshop: define a worst-case product/load and map CPPs to risks. Draft acceptance criteria for the EO validation protocol.
Expected outputs:
- Worst-case selection rationale
- Draft acceptance criteria table for CPPs and microbiological outcomes
B2. EO Sterilization – Installation/Operational/Performance Qualification (IQ/OQ/PQ)
Suggested duration: 1.5 h
Learning outcomes:
- List IQ/OQ requirements for EO sterilization equipment, utilities, and safety systems.
- Explain PQ concepts such as half-cycle/full-cycle approach and product/load qualification (including MPQ/PPQ where applicable).
- Identify common deviations and define investigation/impact assessment approach.
Content outline:
- IQ topics: equipment specification, piping & instrumentation, leak tests, EO supply system, aeration room qualification, software and access controls.
- Safety and environmental controls: ventilation, gas monitoring, abatement, emergency response interfaces (site specific).
- OQ topics: empty chamber and loaded chamber studies, distribution of temperature/humidity/EO concentration, alarm and interlock testing.
- PQ topics: microbiological performance demonstration, BI placement rationale, half-cycle/full-cycle approach (conceptual), product/load performance qualification.
- Aeration effectiveness: ensuring EO residual reduction and demonstrating control of aeration time/conditions.
- Protocol/report expectations: predefined acceptance criteria, raw data, deviations, and conclusion logic.
Workshop / exercise:
Case study: software change or sensor replacement scenario. Decide whether partial requalification is sufficient or PQ repetition is required, and justify using risk and evidence.
Expected outputs:
- Requalification scope justification
- List of required tests/records for the proposed change
B3. EO Sterilization – Routine Control and Release Decision-Making
Suggested duration: 1.25-1.5 h
Learning outcomes:
- Establish routine monitoring of CPPs and define batch release criteria.
- Differentiate routine monitoring tools (cycle record review, CIs, BIs, PCDs) and their roles.
- Handle deviations, reprocessing, and product disposition under an ISO 13485-compliant nonconformity process.
Content outline:
- Routine control plan: cycle parameter limits, sensor checks, and load pattern control.
- Routine indicators: use of CIs, BIs (if applicable), PCD concepts, and sampling governance.
- Release approaches: parametric release concepts and prerequisites (high-level) versus BI-based release; risk-based selection.
- Deviation handling: cycle aborts, EO concentration/temperature excursions, humidity issues, BI positives, and quarantine rules.
- Reprocessing and re-sterilization: technical considerations and documentation controls.
- Trending and periodic review: cycle capability, drift, and recurring alarms/deviations.
Workshop / exercise:
Workshop: build a deviation decision flow (containment to disposition) for three scenarios: humidity low, EO concentration low, BI positive.
Expected outputs:
- Deviation decision flowchart
- Draft quarantine/rework disposition checklist
B4. EO Sterilization – Maintaining Effectiveness (Requalification, Residuals, and Lifecycle Management)
Suggested duration: 1.25 h
Learning outcomes:
- Define triggers and frequency for requalification of EO process and associated systems.
- Explain how EO residuals (ISO 10993-7) link to process changes and ongoing effectiveness.
- Integrate environmental, occupational safety, and facility controls into maintaining effectiveness.
Content outline:
- Requalification triggers: product changes (materials, packaging, lumens), load configuration changes, equipment/software changes, utility changes, facility modifications.
- Periodic requalification concepts: sensor calibration review, distribution studies (as needed), microbiological performance checks (as applicable).
- EO residuals overview: patient safety rationale and how changes can affect residual profiles (conceptual).
- Aeration control and monitoring: ensuring consistent residual reduction; managing worst-case product families.
- Environmental and safety considerations: gas monitoring, emission controls, training/competency, emergency preparedness (site specific).
- Management review and continual improvement: KPIs, CAPA effectiveness, supplier performance, and audit findings.
Workshop / exercise:
Group discussion: define your site’s top revalidation triggers and propose a yearly effectiveness review checklist for EO.
Expected outputs:
- EO effectiveness review checklist
- List of revalidation triggers tailored to the site
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