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    In-depth, attribute-by-attribute tables for the most common MedTech term pairs. Each row is sourced from the linked term pages.

    Regulatory

    Premarket Approval(PMA)

    In one line
    FDA's most stringent device marketing application, required for high-risk Class III devices.
    Definition
    Premarket Approval (PMA) is the FDA process of scientific and regulatory review to evaluate the safety and effectiveness of Class III medical devices. PMA is the most stringent type of device marketing application required by the FDA. Unlike a 510(k), a PMA does not rely on comparison to a predicate. The sponsor must provide valid scientific evidence, usually including clinical investigation data, that gives reasonable assurance of safety and effectiveness. FDA may convene an advisory panel, inspects manufacturing facilities before approval, and later changes to an approved device often need a PMA supplement under 21 CFR 814.39.
    Why it matters
    PMA submissions must include valid scientific evidence, typically from adequate and well-controlled clinical investigations, that the device is safe and effective for its intended use. They also undergo a Pre-Approval Inspection (PAI) of the manufacturing facility. Post-approval, PMA devices remain subject to conditions of approval, post-approval studies, and annual reports.
    Common pitfalls
    • •Assuming a 510(k) pathway will work for novel high-risk devices. Class III devices default to PMA unless reclassified.
    • •Underestimating the manufacturing inspection component (PAI); GMP nonconformities can delay approval regardless of clinical data quality.
    • •Building a clinical program without an early FDA Pre-Submission (Q-Sub) meeting to align on endpoints, control, and statistical plan.
    • •Confusing PMA approval with 510(k) clearance in labeling and marketing materials.
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    Why compare MedTech terms side by side?

    MedTech terminology is full of pairs that look interchangeable but carry very different regulatory, clinical, and commercial consequences. Picking the wrong framework, pathway, or standard early in a project can add months to a submission, invalidate clinical evidence, or trigger an audit finding. Side-by-side comparison is the fastest way to surface those differences before they become costly mistakes.

    Each comparison on this page pulls from the same vendor-neutral, sourced definitions used throughout the MedTech Terms glossary. You see the one-line summary, the formal definition, why it matters in practice, common pitfalls, and the primary sources (FDA guidance, EU MDR/IVDR articles, ISO/IEC standards, MDCG documents, IMDRF principles) that back each entry. That makes the comparison defensible in regulatory strategy memos, design reviews, and submission narratives.

    Common comparison patterns

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    Pick term A and term B from the dropdowns, or click a preset above. The URL updates with both slugs so you can bookmark or share the exact comparison with a colleague, a notified body reviewer, or your regulatory consultant. Click Open full page on either side for the complete entry, including FAQs, related terms, and the full citation list. If you are not sure which term to start with, browse the Categories view or the A-Z index.

    MedTech Terms is a vendor-neutral community resource sponsored by Blue Goat Cyber. Definitions are written for educational use and are not legal or regulatory advice.