Toxicology laboratory bench with microscope and colorful sample flasks
Core Service

Toxicological Risk Assessment (TRA)

Translating chemical and exposure data into a clear, scientifically defensible conclusion on patient safety.

What is a Toxicological Risk Assessment?

A Toxicological Risk Assessment evaluates the potential health risks posed by chemical substances that may leach from a device's materials during clinical use. Our ERT and DABT-certified toxicologists identify and quantify extractable and leachable compounds and compare exposure levels against established toxicological thresholds — such as the Tolerable Intake or the Threshold of Toxicological Concern.

TRAs are a critical part of the biological evaluation process, especially for devices with prolonged or permanent tissue contact, determining whether any substance poses an unacceptable risk to the patient.

Why it matters

Data becomes a patient safety decision.

  • Connects raw chemistry data to an actual patient safety conclusion regulators can act on.
  • Accounts for real-world exposure conditions, not worst-case assumptions alone.
  • Identifies compounds that need mitigation before they delay a submission.
  • Led by internationally accredited toxicologists (ERT, DABT), which carries direct credibility with reviewers.
Toxicology laboratory bench with microscope and sample vials used for toxicological risk assessment
What's included

Methodologies we apply

Toxicological Risk Assessment

Evaluating health risk based on chemical and exposure data.

Exposure Assessment

Quantifying route, frequency, and duration of patient contact.

Literature Reviews

Referencing established toxicological thresholds for each compound.

Biological Safety Cross-Check

Confirming risk conclusions align with biocompatibility findings.

Standards we align to
ISO 10993 Series ISO 14971 FDA Guidance European MDR
How we assess it

Our process for your TRA

1

Review Chemical Data

Compound-level data from Chemical Characterization is reviewed in full.

2

Model Patient Exposure

Route, frequency, and duration of contact are modeled against real use.

3

Apply Safety Thresholds

Each compound is assessed against Tolerable Intake and Margin of Safety.

4

Deliver the Conclusion

A defensible risk conclusion is delivered, ready for your BER.

The deliverable

What you receive

A defensible toxicological risk conclusion for every identified compound.

Clear pass/fail or mitigation guidance against safety thresholds.

Documentation ready for direct inclusion in your BER.

Direct access to the certified toxicologist behind the assessment.

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