2024-05584. Evaluation of Thermal Effects of Medical Devices That Produce Tissue Heating and/or Cooling; Draft Guidance for Industry and Food and Drug Administration Staff; Availability

AGENCY:

Food and Drug Administration, HHS.

ACTION:

Notice of availability.

SUMMARY:

The Food and Drug Administration (FDA or Agency) is announcing the availability of the draft guidance entitled “Evaluation of Thermal Effects of Medical Devices That Produce Tissue Heating and/or Cooling.” FDA is issuing this draft guidance document to describe relevant information that should be provided in premarket submissions to support the evaluation of thermal effects of medical devices that produce local, regional, and/or systemic changes in tissue temperature ( i.e., heating and/or cooling) due to their use. The recommendations in this draft guidance reflect current review practices and are intended to promote consistency and facilitate efficient review of thermal effects data in premarket submissions for these devices. This draft guidance is not final nor is it for implementation at this time.

DATES:

Submit either electronic or written comments on the draft guidance by May 14, 2024 to ensure that the Agency considers your comment on this draft guidance before it begins work on the final version of the guidance.

ADDRESSES:

You may submit comments on any guidance at any time as follows:

Electronic Submissions

Submit electronic comments in the following way:

• Federal eRulemaking Portal: https://www.regulations.gov. Follow the instructions for submitting comments. Comments submitted electronically, including attachments, to https://www.regulations.gov will be posted to the docket unchanged. Because your comment will be made public, you are solely responsible for ensuring that your comment does not include any confidential information that you or a third party may not wish to be posted, such as medical information, your or anyone else's Social Security number, or confidential business information, such as a manufacturing process. Please note that if you include your name, contact information, or other information that identifies you in the body of your comments, that information will be posted on https://www.regulations.gov.

• If you want to submit a comment with confidential information that you do not wish to be made available to the public, submit the comment as a written/paper submission and in the manner detailed (see “Written/Paper Submissions” and “Instructions”).

Written/Paper Submissions

Submit written/paper submissions as follows:

• Mail/Hand Delivery/Courier (for written/paper submissions): Dockets Management Staff (HFA–305), Food and Drug Administration, 5630 Fishers Lane, Rm. 1061, Rockville, MD 20852.

• For written/paper comments submitted to the Dockets Management Staff, FDA will post your comment, as well as any attachments, except for information submitted, marked and identified, as confidential, if submitted as detailed in “Instructions.”

Instructions: All submissions received must include the Docket No. FDA–2024–D–0664 for “Evaluation of Thermal Effects of Medical Devices that Produce Tissue Heating and/or Cooling.” Received comments will be placed in the docket and, except for those submitted as “Confidential Submissions,” publicly viewable at https://www.regulations.gov or at the Dockets Management Staff between 9 a.m. and 4 p.m., Monday through Friday, 240–402–7500.

• Confidential Submissions—To submit a comment with confidential information that you do not wish to be made publicly available, submit your comments only as a written/paper submission. You should submit two copies total. One copy will include the information you claim to be confidential with a heading or cover note that states “THIS DOCUMENT CONTAINS CONFIDENTIAL INFORMATION.” The Agency will review this copy, including the claimed confidential information, in its consideration of comments. The second copy, which will have the claimed confidential information redacted/blacked out, will be available for public viewing and posted on https://www.regulations.gov. Submit both copies to the Dockets Management Staff. If you do not wish your name and contact information to be made publicly available, you can provide this information on the cover sheet and not in the body of your comments and you must identify this information as “confidential.” Any information marked as “confidential” will not be disclosed except in accordance with 21 CFR 10.20 and other applicable disclosure law. For more information about FDA's posting of comments to public dockets, see 80 FR 56469, September 18, 2015, or access the information at: https://www.govinfo.gov/​content/​pkg/​FR-2015-09-18/​pdf/​2015-23389.pdf.

Docket: For access to the docket to read background documents or the electronic and written/paper comments received, go to https://www.regulations.gov and insert the docket number, found in brackets in the heading of this document, into the “Search” box and follow the prompts and/or go to the Dockets Management Staff, 5630 Fishers Lane, Rm. 1061, Rockville, MD 20852, 240–402–7500.

You may submit comments on any guidance at any time (see 21 CFR 10.115(g)(5)).

An electronic copy of the guidance document is available for download from the internet. See the SUPPLEMENTARY INFORMATION section for information on electronic access to the guidance. Submit written requests for a single hard copy of the draft guidance document entitled “Evaluation of Thermal Effects of Medical Devices that Produce Tissue Heating and/or Cooling” to the Office of Policy, Center for Devices and Radiological Health, Food and Drug Administration, 10903 New Hampshire Ave., Bldg. 66, Rm. 5431, Silver Spring, MD 20993–0002. Send one self-addressed adhesive label to assist that office in processing your request.

FOR FURTHER INFORMATION CONTACT:

Devashish Shrivastava, Center for Devices and Radiological Health, Food and Drug Administration, 10903 New Hampshire Ave., Bldg. 66, Rm. 4628, Silver Spring, MD 20993–0002, 301–796–5459.

SUPPLEMENTARY INFORMATION:

I. Background

When a change in tissue temperature occurs because of device heating and/or cooling, there is a potential for adverse health effects, such as tissue damage or a negative impact on physiological functions. This draft guidance provides FDA's recommendations for evaluation of thermal effects for devices that produce changes in tissue temperature (heating and/or cooling) as an intended or unintended consequence of device use. The draft guidance describes when experimental methods ( i.e., phantom, ex vivo tissue, and/or in vivo tissue models), computational methods, and/or clinical studies may be appropriate to assess thermal effects.

This draft guidance is being issued consistent with FDA's good guidance practices regulation (21 CFR 10.115). The draft guidance, when finalized, will represent the current thinking of FDA on “Evaluation of Thermal Effects of Medical Devices That Produce Tissue Heating and/or Cooling.” It does not establish any rights for any person and is not binding on FDA or the public. You can use an alternative approach if it satisfies the requirements of the applicable statutes and regulations.

II. Electronic Access

Persons interested in obtaining a copy of the draft guidance may do so by downloading an electronic copy from the internet. A search capability for all Center for Devices and Radiological Health guidance documents is available at https://www.fda.gov/​medical-devices/​device-advice-comprehensive-regulatory-assistance/​guidance-documents-medical-devices-and-radiation-emitting-products. This guidance document is also available at https://www.regulations.gov or https://www.fda.gov/​regulatory-information/​search-fda-guidance-documents. Persons unable to download an electronic copy of “Evaluation of Thermal Effects of Medical Devices that Produce Tissue Heating and/or Cooling” may send an email request to [e-mail] to receive an electronic copy of the document. Please use the document number GUI00022002 and complete title to identify the guidance you are requesting.

III. Paperwork Reduction Act of 1995

While this guidance contains no new collection of information, it does refer to previously approved FDA collections of information. The previously approved collections of information are subject to review by the Office of Management and Budget (OMB) under the Paperwork Reduction Act of 1995 (PRA) (44 U.S.C. 3501–3521). The collections of information in the following table have been approved by OMB:

21 CFR part or guidance	Topic	OMB control No.
807, subpart E	Premarket notification	0910–0120
814, subparts A through E	Premarket approval	0910–0231
814, subpart H	Humanitarian Use Devices; Humanitarian Device Exemption	0910–0332
812	Investigational Device Exemption	0910–0078
860, subpart D	De Novo classification process	0910–0844
“Requests for Feedback and Meetings for Medical Device Submissions: The Q-Submission Program”	Q-submissions and Early Payor Feedback Request Programs for Medical Devices	0910–0756
800, 801, 809, and 830	Medical Device Labeling Regulations; Unique Device Identification	0910–0485

Dated: March 12, 2024.

Lauren K. Roth,

Associate Commissioner for Policy.