Comprehensive FMEA/FTA analysis identifying use errors, use scenarios, and critical tasks for combination products, with severity rankings that drive human factors mitigation strategies per ISO 14971 and IEC 62366-1.

Iterative user testing with representative patient populations (including edge cases: elderly, vision-impaired, arthritis, pediatric caregivers) to optimize device design before committing to validation study protocols.

FDA-compliant summative studies demonstrating safe and effective use by intended users in simulated-use environments, with statistical validation of critical task success and comprehensive root cause analysis of use errors.

Patient-centric IFU design with plain language, visual instructions, and accessibility considerations, validated through comprehension testing to minimize training burden and post-market complaints.

Validation testing confirming users correctly interpret critical warnings, contraindications, and dosing instructions—addressing the FDA concern that drives most combination product Clinical Review deficiency letters.