Are there special considerations for pediatric HDE devices?

Yes, for devices intended for pediatric patients, the profit limitations typically associated with HDEs may not apply. This encourages the development of devices for rare diseases in children.

What is the role of an Institutional Review Board (IRB) in the use of HUDs?

The use of a Humanitarian Use Device (HUD) by an institution typically requires approval from an Institutional Review Board (IRB), ensuring ethical considerations and patient protection are addressed. This oversight is critical for patient safety.

Can an HDE device be marketed without an approved HDE application?

No, an HDE device cannot be marketed until the HDE application has been approved by the FDA. Marketing prior to approval would constitute a violation of regulatory requirements.

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RegulatoryRegulated Pathways Global MarketsHDE

Humanitarian Device Exemption

FDA marketing pathway for devices treating rare conditions affecting fewer than 8,000 U.S. patients per year.

Reviewed by Christian Espinosa, Founder, Blue Goat CyberLast reviewed September 19, 2026

Definition

An HDE is an application similar to a PMA but exempt from the effectiveness requirements. It allows marketing of a Humanitarian Use Device (HUD) intended to benefit patients with rare diseases or conditions. HUD designation from FDA's Office of Orphan Products Development comes first, for a condition affecting not more than 8,000 people in the US per year. The application must show probable benefit outweighing risk, and use is overseen by an institutional review board. Profit limits apply, with exceptions for certain pediatric devices.

What the regulation says

The FDA’s Humanitarian Device Exemption (HDE) program, outlined in 21 CFR Part 814 Subpart H, facilitates the development and availability of devices for rare diseases or conditions. Unlike a Premarket Approval (PMA), an HDE application does not require proof of effectiveness, only probable benefit outweighs the risk of injury or illness. The FDA also provides guidance on humanitarian use devices (HUDs), the devices approved under an HDE.

What this means in practice

HDE devices must demonstrate probable benefit outweighs risk of injury or illness. Use is generally restricted, often requiring IRB oversight, and there are profit limitations except in pediatric cases.

Examples

A company develops an implantable device to treat a rare genetic heart condition affecting a small patient population, and it seeks HDE approval.
A physician wants to use an approved HUD for a patient, requiring their hospital's Institutional Review Board (IRB) to approve the use.
A manufacturer of an HDE device for a pediatric rare neurological disorder submits an annual report to the FDA, detailing the device's sales and usage.

Common pitfalls

•A common misconception is that HDE devices do not require clinical data; however, clinical data is necessary to demonstrate probable benefit and assess risks.
•Failing to understand the profit limitations for HDE devices, which generally cap annual sales, can lead to compliance issues.
•Manufacturers sometimes overlook the ongoing post-approval requirements, including reporting adverse events and changes to the device.
•Confusing the HDE process with other regulatory pathways, such as 510(k) or PMA, can lead to incorrect application strategies.

Frequently asked questions

For HDE purposes, a rare disease or condition is one that affects fewer than 4,000 individuals in the United States per year. This criterion is crucial for determining eligibility for the HDE pathway.

Grouped by theme

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Regulatory

Premarket Approval(PMA)

FDA's most stringent device marketing application, required for high-risk Class III devices.

Clinical & Trials

Institutional Review Board(IRB)

Board that reviews and approves human-subjects research at an institution.

Clinical & Trials

Investigational Device Exemption(IDE)

FDA authorization to use an investigational device in a clinical study.

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Regulatory

510(k) Premarket Notification(510(k))

FDA submission demonstrating a device is substantially equivalent to a legally marketed predicate.

Regulatory

510(k) Summary vs 510(k) Statement

Two alternative disclosure mechanisms in a 510(k) submission, a Summary is public on FDA's website; a Statement promises to share Safety & Effectiveness info on request.

Regulatory

513(g) Request for Information(513(g))

Formal mechanism to ask FDA whether a product is a device and, if so, its likely classification.

Regulatory

Abbreviated 510(k)

510(k) variant that relies on FDA guidance, special controls, or recognized consensus standards.

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Category: Regulatory
Acronym: HDE
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Updated: 9/19/2026

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FDA marketing pathway for devices treating rare conditions affecting fewer than 8,000 U.S. patients per year.

·HDE devices must demonstrate probable benefit outweighs risk of injury or illness.
·Use is generally restricted, often requiring IRB oversight, and there are profit limitations except in pediatric cases.
·It allows marketing of a Humanitarian Use Device (HUD) intended to benefit patients with rare diseases or conditions.

Remember this

Watch out: A common misconception is that HDE devices do not require clinical data; however, clinical data is necessary to demonstrate probable benefit and assess risks.

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