Biological Safety Consulting
Biological Safety Consulting provides a structured, science-driven approach to evaluating the biological safety of medical devices, biomaterials, and patient-contacting products. Materials Metric supports manufacturers with ISO 10993-based biocompatibility strategy, Biological Evaluation Plans (BEP), Biological Evaluation Reports (BER), Toxicological Risk Assessments (TRA), Biological Risk Assessments (BRA), and testing strategy development for regulatory submissions.
A successful biological safety program is not simply a checklist of biocompatibility tests. The evaluation must consider the deviceโs intended use, patient-contact type, contact duration, material composition, manufacturing process, sterilization method, cleaning residues, degradation products, extractables/leachables, and available prior data. Materials Metric helps clients translate these factors into a clear, risk-based biological safety pathway aligned with ISO 10993 principles, FDA expectations, and global regulatory requirements.
At Materials Metric, we support biological safety evaluation across polymers, metals, ceramics, coatings, adhesives, colorants, nanomaterials, tissue-contacting systems, and combination products. Our consulting approach helps clients identify data gaps, reduce unnecessary testing, justify test omissions where scientifically appropriate, and prepare documentation that can support FDA, EU MDR, and other regulatory submissions.
Biocompatibility, Toxicology, and Biological Safety Consulting Services
โข Develop Biological Evaluation Plans (BEP) for medical devices
โข Prepare Biological Evaluation Reports (BER) using available test data and scientific rationale
โข Conduct Toxicological Risk Assessments (TRA) based on chemical characterization, extractables, leachables, impurities, and degradation products
โข Perform Biological Risk Assessments (BRA) for patient-contacting materials and devices
โข Plan ISO 10993 biocompatibility test matrices
โข Identify applicable biological endpoints based on contact type and duration
โข Evaluate extractables/leachables and chemical characterization requirements
โข Assess whether existing material, supplier, predicate-device, or historical data can support testing reductions
โข Develop scientific rationales for test omission, modification, or additional testing
โข Support FDA, EU MDR, and regulatory submission planning
Device Types and Product Categories
โข Medical devices
โข Biomaterials and implants
โข Dental materials and devices
โข Drug-device combination products
โข Tissue engineering scaffolds
โข Wound care products
โข Reusable medical devices
โข Mucosal-contacting devices
โข Skin-contacting devices
โข Blood-contacting devices
โข Coated, adhesive, polymeric, metallic, or ceramic devices
โข Material changes, supplier changes, manufacturing changes, or sterilization changes
Consulting Process
1. Device and Material Review
Materials Metric begins by reviewing the device description, intended use, patient population, anatomical contact location, contact duration, material composition, formulation details, manufacturing process, sterilization method, packaging, and available test history.
This step helps define the biological safety question and ensures that the evaluation is based on the actual device, not a generic test checklist.
Key review areas include:
โข Device classification and intended clinical use
โข Direct or indirect patient contact
โข Contact type: skin, mucosal membrane, blood, tissue, bone, dentin, circulating blood, or implanted contact
โข Contact duration: limited, prolonged, or long-term
โข Material composition and additives
โข Coatings, adhesives, lubricants, colorants, plasticizers, and processing aids
โข Sterilization, cleaning, and manufacturing residues
โข Prior testing, supplier documentation, and predicate-device data
2. Biological Evaluation Plan (BEP)
A Biological Evaluation Plan is developed before testing begins. The BEP identifies the applicable biological endpoints, explains the rationale for testing or not testing, and outlines the strategy for demonstrating biological safety.
Materials Metric can prepare BEPs that include:
โข Device description and intended use
โข Patient-contact classification
โข Applicable ISO 10993 endpoints
โข Review of materials and manufacturing-related risks
โข Existing data assessment
โข Gap analysis against relevant biological endpoints
โข Recommended testing strategy
โข Rationale for test selection, test omission, or test modification
โข Chemical characterization and extractables/leachables considerations
โข Risk-based justification for the proposed biological evaluation pathway
A BEP can help avoid unnecessary testing while ensuring that required endpoints are not missed.
3. Biological Risk Assessment (BRA)
A Biological Risk Assessment evaluates potential biological hazards associated with the device and its materials. This includes risks related to cytotoxicity, sensitization, irritation, systemic toxicity, genotoxicity, implantation, hemocompatibility, material-mediated pyrogenicity, and other endpoints when applicable.
Materials Metric helps assess:
โข Biological hazards associated with materials and processing
โข Exposure route and exposure duration
โข Patient-contact risks
โข Residual chemicals and degradation products
โข Potential toxicological concerns
โข Adequacy of available data
โข Residual biological risk after testing and mitigation
The BRA can be integrated into the broader ISO 14971 risk-management framework.
4. Toxicological Risk Assessment (TRA)
A Toxicological Risk Assessment is often needed when chemical characterization, extractables/leachables, impurities, or degradation products are identified. TRA helps determine whether detected chemicals present an acceptable toxicological risk under expected clinical exposure conditions.
Materials Metric can support TRA planning and documentation related to:
โข Chemical characterization data review
โข Extractables and leachables assessment
โข Identification of chemical constituents
โข Toxicological hazard evaluation
โข Exposure-based risk assessment
โข Margin of safety analysis
โข Threshold of toxicological concern considerations
โข Unknown or partially identified compounds
โข Degradation products, residual monomers, additives, and processing residues
TRA is especially important for devices with prolonged or long-term contact, implants, reusable devices, polymeric materials, adhesives, coatings, or complex formulations.
5. Gap Analysis
Materials Metric performs a gap assessment to compare existing data against applicable biological safety expectations. This helps determine whether additional testing is needed or whether existing information may be sufficient with proper scientific justification.
Gap analysis may include review of:
โข Existing biocompatibility reports
โข Chemical characterization results
โข Supplier material data
โข Certificates of analysis
โข Prior regulatory submissions
โข Predicate-device information
โข Manufacturing and sterilization changes
โข Packaging or aging data
โข Material equivalency information
The result is a clear summary of missing data, recommended next steps, and documentation needed to support the biological safety evaluation.
6. Test Strategy Development
Based on the device category, available data, and identified gaps, Materials Metric develops a practical test strategy aligned with ISO 10993 and regulatory expectations.
Testing strategy may include:
โข Cytotoxicity
โข Sensitization
โข Irritation or intracutaneous reactivity
โข Acute, subacute, subchronic, or chronic systemic toxicity
โข Genotoxicity
โข Implantation
โข Hemocompatibility
โข Material-mediated pyrogenicity
โข Chemical characterization
โข Extractables/leachables
โข Degradation product analysis
โข Surface, chemical, mechanical, and material characterization
Materials Metric can also help coordinate testing with qualified partner laboratories when specific biological or in-vivo studies are required.
7. Biological Evaluation Report (BER)
After testing, literature review, chemical characterization, and risk assessments are completed, Materials Metric can support preparation of a Biological Evaluation Report. The BER summarizes the evidence used to support the biological safety of the device.
A BER may include:
โข Summary of the device and intended use
โข Biological endpoint assessment
โข Summary of completed testing
โข Evaluation of test results
โข Chemical characterization and toxicological risk conclusions
โข Literature and prior data review
โข Justification for omitted endpoints
โข Discussion of residual biological risks
โข Final biological safety conclusion
โข Recommendations for additional testing, if needed
The BER is often used as a key supporting document for FDA, EU MDR, and other regulatory submissions.
8. Regulatory Documentation Support
Materials Metric supports clients in preparing clear, organized, and scientifically justified documentation for regulatory submissions. This includes documentation that supports FDA 510(k), De Novo, PMA, EU MDR technical files, design changes, material changes, supplier changes, and responses to regulatory questions.
Regulatory support may include:
โข BEP development
โข BER development
โข TRA documentation
โข BRA documentation
โข ISO 10993 test matrix preparation
โข Justification for test omission or endpoint exclusion
โข Responses to regulatory questions related to biocompatibility
โข Integration of biological safety documentation with analytical and chemical characterization data
Why Choose Materials Metric
Materials Metric delivers biological safety guidance grounded in materials science, analytical chemistry, toxicology, and regulatory expectations. Our strength is the ability to connect material composition, chemical characterization, biological risk, and regulatory strategy into a clear and defensible evaluation pathway.
We offer:
โข ISO 10993-based biological safety strategy
โข Biological Evaluation Plan and Biological Evaluation Report support
โข Toxicological Risk Assessment and Biological Risk Assessment support
โข Strong expertise in materials characterization and chemical analysis
โข Integrated review of chemical, biological, mechanical, and surface data
โข Practical testing recommendations designed to avoid unnecessary studies
โข Clear scientific documentation for regulatory submissions
โข Coordination with qualified testing laboratories when needed
Your biological safety plan should be rigorous, efficient, and scientifically justified. Materials Metric helps clients develop a clear pathway from material review and risk assessment through testing strategy, toxicological interpretation, and final biological safety documentation.
