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    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 May 5, 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.
    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.
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    Primary references

    3 sources
    Link health: 3 verified· last checked 2026-06-20
    FDA·1European Commission·1IMDRF·1
    1. 1
      Humanitarian Device Exemption
      Verified
      FDAfda.gov
    2. 2
      European Commission - Medical Devices
      Verified
      European Commissionhealth.ec.europa.eu
    3. 3
      IMDRF Documents
      Verified
      IMDRFimdrf.org

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