The difference between FDA cleared and FDA approved comes down to how much evidence the FDA demanded before the product could be sold. An approved product went through the agency’s most rigorous review, with clinical trials showing its benefits outweigh its risks. A cleared product was judged substantially equivalent to something already on the market, often without any new clinical testing at all. Same three letters on the label, very different regulatory meaning.
What FDA Approval Means
Approval is reserved for new drugs and the highest-risk medical devices, which the FDA calls Class III. These are products that sustain or support life, or that could cause serious injury if they fail: implantable pacemakers, replacement heart valves, cochlear implants, breast implants.1U.S. Food and Drug Administration. PMA Approvals
For a Class III device, the pathway is Premarket Approval (PMA). The manufacturer submits a detailed application covering design, materials, manufacturing methods, and performance testing, along with clinical investigations and non-clinical data on biocompatibility, toxicology, and shelf life.2U.S. Food and Drug Administration. Premarket Approval (PMA) The FDA’s own review target is 180 review days for applications without an advisory committee and 320 days with one.3U.S. Food and Drug Administration. FDA-TRACK: Medical Device User Fee Amendments Review Goals Summary That clock counts only the agency’s time; the years of clinical trials that come first are separate.
Drugs use a parallel process called the New Drug Application. FDA physicians, statisticians, chemists, and pharmacologists review the manufacturer’s data, and if benefits outweigh known risks, the drug is approved.4U.S. Food and Drug Administration. Development and Approval Process Drugs There is no clearance option for drugs. Every prescription and over-the-counter drug sold in the United States must be approved.
What FDA Clearance Means
Clearance is the pathway for lower-risk medical devices, mostly Class I and Class II products. Blood pressure cuffs, powered wheelchairs, pregnancy tests, and surgical gloves all reach the market this way. Instead of proving safety and effectiveness from scratch, the manufacturer shows its device is “substantially equivalent” to a device already legally sold in the United States.5U.S. Food and Drug Administration. How to Find and Effectively Use Predicate Devices
The formal name is 510(k) Premarket Notification, after the section of the Food, Drug, and Cosmetic Act that created it. A manufacturer must notify the FDA at least 90 days before marketing a new device and identify a “predicate” it resembles.6U.S. Food and Drug Administration. 510(k) Clearances A predicate can be a device sold before May 28, 1976 (when the modern classification system took effect), a device previously cleared through 510(k), a reclassified device, or one authorized through the De Novo pathway.7U.S. Food and Drug Administration. Premarket Notification 510(k)
What Substantial Equivalence Really Requires
Substantial equivalence is not identity. The FDA compares the new device to the predicate across intended use, design, materials, energy sources, software, and performance characteristics.5U.S. Food and Drug Administration. How to Find and Effectively Use Predicate Devices If the technology differs, the manufacturer must show the differences raise no new safety concerns and that the device performs at least as well as the predicate. Evidence typically comes from bench testing, biocompatibility studies, electromagnetic compatibility evaluations, and software validation.7U.S. Food and Drug Administration. Premarket Notification 510(k)
Most 510(k) submissions rely entirely on non-clinical data. The FDA estimates that only about 10 to 15 percent of 510(k) submissions include clinical data, usually in cases where bench testing alone can’t demonstrate equivalence. The agency’s review goal is 90 review days.3U.S. Food and Drug Administration. FDA-TRACK: Medical Device User Fee Amendments Review Goals Summary
Two Related Categories That Are Not the Same Thing
Two other labels get mistaken for approval or clearance. Neither is either one.
De Novo classification handles novel low-to-moderate-risk devices with no existing predicate. Rather than push a genuinely new but low-risk product through the full PMA process, the FDA can classify it into Class I or Class II through a De Novo request.8eCFR. Subpart D De Novo Classification The review target is 150 days, and once a De Novo device is authorized it becomes a predicate that future 510(k) submissions can reference.9U.S. Food and Drug Administration. De Novo Classification Request
Emergency Use Authorization became familiar during COVID-19 and is still frequently confused with approval. Under Section 564 of the Food, Drug, and Cosmetic Act, the FDA can authorize unapproved products during a declared public health emergency when the potential benefits outweigh the known risks. The standard is lower: the product “may be effective,” not that it has been proven effective.10U.S. Food and Drug Administration. Emergency Use Authorization of Medical Products and Related Authorities An EUA is temporary. When the emergency declaration ends, the authorization expires unless the manufacturer has obtained regular approval or clearance in the meantime, and the FDA can withdraw an EUA at any time if the risk-benefit picture changes.
Cleared vs. Approved at a Glance
- Risk class. Approval covers Class III devices and all new drugs. Clearance covers Class I and Class II devices.
- Evidence. Approval requires original clinical trials proving the product is safe and effective on its own merits. Clearance requires showing the product is substantially equivalent to a legally marketed predicate, and clinical data appears in only about 10 to 15 percent of submissions.
- What the FDA is deciding. A PMA is essentially a private license to market a specific device. A 510(k) is a determination that the new device is no less safe or effective than one already sold.1U.S. Food and Drug Administration. PMA Approvals
- Review time. 90 review days for a 510(k), 180 to 320 for a PMA. Review days exclude the time the file sits on hold waiting for the manufacturer to answer questions, so calendar time runs longer.
- Cost. The 510(k) filing fee is a small fraction of the PMA fee, and the underlying testing burden scales the same way.11U.S. Food and Drug Administration. Medical Device User Fee Amendments (MDUFA) Fees
Why the Difference Matters Legally
Calling a 510(k)-cleared device “FDA approved” is not just imprecise. The FDA itself uses “clearance” for 510(k) devices and reserves “approval” for PMA devices and drugs. Courts have treated the distinction as legally significant, and describing a cleared device as approved can be a false statement about the product’s regulatory status, exposing a manufacturer to liability under federal false advertising law and state consumer protection statutes.
The label also changes what consumers can sue for. The Supreme Court has held that federal preemption of state-law claims generally applies only to Class III devices that went through the full PMA process. Devices cleared through 510(k) typically do not receive the same preemption protection, because clearance does not impose the device-specific requirements that PMA does. In practice, state-law product liability claims are generally easier to bring against a cleared device than an approved one.
Post-Market Duties Apply Either Way
Whichever pathway brought a device to market, oversight continues after it goes on sale. Manufacturers must maintain written procedures for tracking and reporting problems. When a manufacturer learns that a device may have caused or contributed to a death or serious injury, it must file a report with the FDA within 30 calendar days. If immediate corrective action is needed to prevent serious public harm, the deadline is five business days.12eCFR. Part 803 Medical Device Reporting Records of reportable events must be kept for at least two years from the event or for the expected life of the device, whichever is longer. A cleared Class II device and an approved Class III device carry the same reporting duties; the distinction between cleared and approved is about how the product got in, not how closely it is watched once it’s there.