Method·August 29, 2026 · 4 min read

No IDE is confirmed until the PMA is

An investigational device exemption's existence is confidential by FDA's own rule until the device wins premarket approval or a product development protocol notice takes effect. Until then, the sponsor and the reviewing IRB, not FDA, decide whether an IDE even has to exist.

By Connor Griggs — Regulatory & Quality Strategist

A device company’s regulatory history becomes public in stages. A 510(k) clears and the decision posts. A PMA is approved and the summary follows. A recall opens, a warning letter goes out, a classification changes — each one eventually lands in a database FDA Radar or anyone else can read. An Investigational Device Exemption is different. For as long as the underlying study runs, FDA’s own rule keeps its existence confidential — not because no one has built the right database yet, but because the regulation says so.

The rule, plainly

Under 21 CFR 812.38, FDA will not disclose that an IDE exists — unless the sponsor has already publicly disclosed or acknowledged it — until one of two things happens: FDA approves a premarket approval application for the device under investigation, or a notice of completion of a product development protocol for the device becomes effective. Both are downstream events. A study can enroll its first subject years before either one occurs, if it occurs at all.

Even once existence is acknowledged, the rule doesn’t hand over the file. The confidentiality protection lifts for the fact that an IDE exists, not for the data and information inside it, which stays protected under the same section’s narrower disclosure exceptions.

Who decides risk before FDA sees anything

The gap runs deeper than confidentiality. For many device studies, FDA never reviews an application at all before enrollment starts. Under 21 CFR 812.66, the sponsor makes the initial call on whether its own study poses a significant risk or a nonsignificant risk, and presents that determination, with its reasoning, to the reviewing IRB. Unless FDA has already made a risk determination for the study, the IRB reviews the sponsor’s call and can modify it if it disagrees.

If the study lands — sponsor and IRB agreed — as a nonsignificant risk study, the sponsor proceeds under the abbreviated requirements at 21 CFR 812.2(b): IRB approval, labeling under 812.5, informed consent, monitoring, and recordkeeping. No IDE application goes to FDA. No submission exists for FDA to have received, let alone disclose.

If the IRB disagrees with a sponsor’s nonsignificant-risk proposal and calls the study significant risk instead, the sponsor has to tell FDA — but on a short clock and a narrow question. Under 21 CFR 812.150(b)(9), the sponsor reports the IRB’s determination within five working days of learning of it. That report, not a public posting, is the first point FDA is even on notice the study exists.

For a nonsignificant-risk study, there is no application for FDA to have received. There is nothing yet for a confidentiality rule to protect, because there is nothing yet FDA has been told.

What that means for reading a portfolio

Put the two rules together and a specific, structural gap follows: a competitor’s ongoing U.S. clinical device study is not something any FDA record can surface while it runs. Not because FDA Radar, or any other service built on FDA’s public data, hasn’t indexed it yet — because for a nonsignificant-risk study, no FDA record of it exists yet to index, and for a significant-risk study under IDE review, the confidentiality rule keeps its existence unconfirmed regardless. A device that later clears through a 510(k) or wins PMA approval can carry years of investigational history that never surfaces anywhere public until the clearance or approval itself does — and even a PMA approval only confirms that an IDE existed, not what it contained.

The practice

Reading a competitor’s pipeline for signs of an active clinical device program means watching for what a study eventually produces — a PMA approval, a De Novo grant, a 510(k) built on data that had to come from somewhere — not searching for the IDE itself, which is built by rule to stay unconfirmed until one of those events happens. Whether a specific device study qualifies as significant or nonsignificant risk, and what that determination should be for a program of your own, is a call for the sponsor and its reviewing IRB to make under 812.66 — this is a description of how that determination and FDA’s own confidentiality rule work, and what they leave out of the public record, regulatory intelligence and method, never regulatory advice about any specific device’s risk classification.

Practice
A provider letter doesn't need a recall
Method
A qualified tool has a context, not a blanket
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The eMDR account isn't automatic
Method
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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The pathway that skips the predicate
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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
Method
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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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
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How to monitor FDA without drowning
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Your predicate was recalled. Now what?
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Why no item reaches you without a human