Method·October 1, 2026 · 3 min read

The pathway that skips the predicate

FDA's Safety and Performance Based Pathway lets an abbreviated 510(k) show substantial equivalence by meeting FDA's own published performance criteria instead of testing against a predicate device — but that shortcut exists only for the device types FDA has already written the criteria for, one guidance at a time, since the pathway's 2019 final guidance.

By Connor Griggs — Regulatory & Quality Strategist

A 510(k) runs on one question by default: is the new device as safe and effective as a predicate already on the market? FDA’s Safety and Performance Based Pathway answers a different question for a growing, but still narrow, list of device types — does the new device meet performance criteria FDA has already published itself, with no predicate comparison at all.

An expansion of the abbreviated 510(k), not a new statute

FDA finalized the pathway’s framework guidance in early 2019, under docket FDA-2018-D-1387, as an expansion of the existing abbreviated 510(k) program — the same mechanism that already let a submitter rely on a recognized consensus standard or a special-controls guideline instead of raw side-by-side testing. Nothing in the pathway rewrites the governing statute’s substantial-equivalence standard. What changes is the evidence FDA will accept as proof: meet FDA’s own numbers for the device type, and the agency can find equivalence without ever naming a predicate to compare against. The review goal attached to that finding is the same 90 FDA days as an ordinary 510(k) — the pathway was never sold as a faster clock. What it buys is a narrower evidentiary burden, not less calendar time, and a submission that still falls short on one criterion gets the same additional-information cycle any other 510(k) would.

Eligible is a guidance, not a description

The pathway opened in 2019 with four device types — conventional Foley catheters, cutaneous electrodes for recording purposes, orthopedic non-spinal bone screws and washers, spinal plating systems. It has grown since, guidance by guidance, into more than a dozen types spanning dental, orthopedic, and ophthalmic devices — dental cements, denture base resin, surgical sutures, soft hydrophilic contact lenses among them. Each one reached the list the same way: FDA wrote and finalized a standalone guidance naming the exact performance criteria and the test methods a submission has to run to show it meets them, down to the standard and the acceptance value. A device type that looks just as well-understood as the ones already listed is not eligible until FDA has done that specific writing — “simple” and “on the list” are not the same determination, and only the agency makes the second one.

The shortcut isn’t earned by how well-understood a device is. It’s earned by whether FDA has already written the criteria down.

The practice

Before a submission assumes this pathway applies, confirm the device type carries a finalized, device-specific performance-criteria guidance today — not a device type that merely resembles one that does. openFDA’s classification record carries no field marking pathway eligibility, the same gap as ASCA accreditation and the Third Party Review program; the only authoritative answer is FDA’s own current list, read on the date of filing, not from memory of what it held a year ago. And meeting the pathway’s own criteria is still a choice, not a shortcut around judgment: a device that cannot actually meet the published numbers has to fall back to an ordinary predicate comparison, no matter how much paperwork the pathway would have saved, and nothing stops a submitter from running the pathway’s own testing first and keeping a conventional predicate in reserve in case it doesn’t clear every threshold. This is regulatory intelligence and method, never regulatory advice about whether a specific device qualifies for the pathway today.

Regulatory intelligence, not regulatory advice. This post describes method and published FDA records as of its date; decisions about a specific device belong with your regulatory professional.

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A provider letter doesn't need a recall
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A qualified tool has a context, not a blanket
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The eMDR account isn't automatic
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The manufacturer who owns no factory
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GLP covers the safety study, not the device
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Part 11 governs the copy, not the duty.
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A K-number isn't always a 510(k)
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Approved once. Reported every year.
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The goal date passes. FDA owes a letter.
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The money a 510(k) never has to mention
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A discussion paper isn't guidance
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A stereotaxic system isn't a RASD
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The A-list is a forecast, not a deadline.
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Ultra has a gram range. Fragrance doesn't.
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Patient preference just reached the 510(k)
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The health hazard evaluation isn't the record
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The sponsor proposes risk. The IRB decides.
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A Special 510(k) needs a predicate you own
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The flag marks the reviewer, not the result
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Call it fifteen. File it in thirty.
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The recognition number isn't the list number
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The letter to file isn't in the guidance
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The PMA preempts. The 510(k) doesn't.
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Cleared doesn't code. Coded doesn't cover.
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Exempt from 510(k). Restricted anyway.
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Exempt from registration. Not from 510(k).
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Right to try reaches drugs, not devices
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The 510(k) clears the range, not the fit
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The hospital's duty runs to the maker, not FDA.
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The predicate study isn't the waiver study.
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No clinical hold for an IDE. Only disapproval.
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A CFG can cover a device that never came here.
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The symbol skips text. The glossary can't.
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The label clears 812.5. The flyer doesn't.
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A 510(k) can change hands. No rule says how.
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A missed renewal is two violations, not one
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Drugs expire by rule. Devices by choice.
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Denied the petition. Not the outcome.
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Starting a committee is public. Renewing isn't.
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A recall closes. A radiation refund doesn't.
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The trial is public. The IDE isn't.
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A PMA withdrawal pays back. A 510(k) doesn't.
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Interoperable is a design term, not a class.
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The category is new. The 510(k) record isn't.
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The device is cleared. Not the room.
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Classified in 2011. Excluded in 2016.
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The law reached devices. The guidance hasn't.
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The label says RUO. FDA reads intent.
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Humanitarian. Not always nonprofit.
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The certification has a one-year tail
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The code changed. The failure didn't.
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Skip has a ceiling. Search after doesn't.
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Reviewed together. Decided separately.
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Class III. Not called for PMA.
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The standard for the wire, not the device
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A reference device isn't a predicate
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A predicate checklist nobody has to follow
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A network FDA funds, not FDA runs
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Panel-recommended. Not yet classified.
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The pilot that needed a statute
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A committee no clearance ever names
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Never cleared here. Exported anyway.
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Built for drugs. Silent on devices.
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A significant decision carries its own clock
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The guidance that went back to draft
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Breakthrough crosses centers. TAP does not.
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Two lists decide who reviews your 510(k)
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The reprocessor holds the 510(k)
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The Rx symbol never reaches the record
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The disqualification list names no device
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The summary FDA writes, not the sponsor
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A missed MDR is misbranding, not a defect
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Two names on one registration, two jobs
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A K-number is public. The other isn't.
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Exempt covers the type, not the use
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Recognized. Not published.
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The supplement got eSTAR. The PMA did not.
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Congress ordered a guidance, not a rule
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AI-enabled is a list. Not a field.
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The companion diagnostic list changed its name
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The master file neither of you can read
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The condition inside the approval order
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The repair FDA calls manufacturing
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Vacated in March. Filed in September.
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Classified. Not waived.
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Emergency use isn't defined in Part 812
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The two-year inspection clock is gone
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The PMA clock starts at the last module
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The Q-Sub that doesn't buy you more time
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Lapsed and revoked end an EUA differently
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A recall strategy has a grade. openFDA doesn't.
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A granted De Novo becomes a predicate.
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Least burdensome changes the ask, not the bar.
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The lab is accredited. Not the device.
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Breakthrough is law. STeP is a guidance.
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MDSAP replaces routine. Not for-cause.
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No field on a 510(k) says what it treats
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Discretion is a policy. Exclusion is a statute.
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Designated by one office. Approved by another.
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MedSun sits beside MAUDE, not inside it
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The five-unit device never gets a K-number
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Meeting the criteria isn't a tracking order
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The PMA clock doesn't stop at approval
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The K-number doesn't track today's device
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A MAUDE report proves it was filed
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Not every MDR starts with the manufacturer
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Completed. Not terminated.
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The device-ban list has three entries
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The UDI exception has its own deadline
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MDUFA VI is being negotiated in public
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The inspection manual changed, not the rule
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The count Congress had to legislate
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The small-business rate isn't retroactive
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A detention order has no docket to read
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PMA approvals moved off the Federal Register
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A citizen petition names names
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A market withdrawal isn't a recall
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Not every device letter comes from CDRH
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Closed on one device. Open on the rest.
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No IDE is confirmed until the PMA is
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The remedial-action call sets the clock
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Jurisdiction is a letter, not a field
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An address is not a footprint
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The final rule that isn't final yet
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The special controls aren't in the record
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Exempt from GMP. Not from complaints.
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The notify list isn't the shortage list
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A constraint can't be skipped. A script can.
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No cron sends this. A person does.
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Corrected, not rewritten
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Quiet is a finding, not a default
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The summary is public. The statement isn't.
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A competitor's 513(g) leaves no trace
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An empty response field proves nothing
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A petition is public. Its outcome isn't.
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The panel is a category, not a meeting
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An accessory carries its own classification
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A TPLC report is a category, not a device
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A 522 order is a question, not a verdict
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A PCCP change leaves no new record
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Not every signal becomes a recall
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eSTAR did not remove the acceptance check
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An early alert has no recall number yet
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A consent decree isn't a database row
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The record has no cybersecurity field
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Classification Change is not one event
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Publication date is not effective date
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One event. Many recall numbers.
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Quantity is a sentence, not a number
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How a firm told you is a field too
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A RIN outlives the document number
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The docket ID is not the comments
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The 510(k) record doesn't name the predicate
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The 510(k) FDA didn't review first
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The letter FDA doesn't have to post
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Cleared doesn't say which track it took
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The clock stops. The calendar doesn't.
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Why a guessed match never reaches you
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The standards list never names a device
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The guidance isn't in the Federal Register.
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Filtered. Not discarded.
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There are two recall databases, not one
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Breakthrough status is confidential by law
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One MAUDE report is not one malfunction
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A supplement number is not a track
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Cleared is not approved
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Nationwide doesn't mean your building
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Not every correction reaches FDA
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Registered. Not reviewed.
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Contact ODE is not a pathway
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Almost no recall is FDA-mandated
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FDA's device names read like a card catalog
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openFDA is free. It is not unlimited.
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GUDID stores the model. Not the box.
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Detention doesn't need a warning letter
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A Class I device, a Class I recall
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21 CFR 820 didn't move. Its contents did.
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The product code that doesn't exist yet
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The classification posts. The 483 behind it doesn't.
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A recall has three dates, and the pipeline had to pick one
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The count is real. The rate is not.
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The firm on the record is not the firm on the box
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Low confidence is an instruction, not a hedge
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The same company, spelled three ways
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A device that was never a medical device
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FDA's warning letters, addressed by column number
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Your regulation has a decimal. FDA's watch doesn't.
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Three letters is too short to search for
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Most warning letters never close
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The guidance that skipped the draft
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Ongoing, as of when?
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The least interesting fact in a 510(k)
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No recall arrives with a product code attached
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The deadline that doesn't email you
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The warning letter has two dates
Method
How to monitor FDA without drowning
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Your predicate was recalled. Now what?
Method
Why no item reaches you without a human