Determination of Regulatory Review Period for Purposes of Patent Extension; ALTIUS DIRECT ELECTRICAL NERVE STIMULATION SYSTEM

<NOTICE> DEPARTMENT OF HEALTH AND HUMAN SERVICES <SUBAGY>Food and Drug Administration</SUBAGY> <DEPDOC>[Docket No. FDA-2024-E-5681]</DEPDOC> <SUBJECT>Determination of Regulatory Review Period for Purposes of Patent Extension; ALTIUS DIRECT ELECTRICAL NERVE STIMULATION SYSTEM</SUBJECT> <HD SOURCE="HED">AGENCY:</HD> Food and Drug Administration, HHS. <HD SOURCE="HED">ACTION:</HD> Notice. <SUM> <HD SOURCE="HED">SUMMARY:</HD> The Food and Drug Administration (FDA or the Agency) has determined the regulatory review period for ALTIUS Direct Electrical Nerve Stimulation System and is publishing this notice of that determination as required by law. FDA has made the determination because of the submission of an application to the Director of the U.S. Patent and Trademark Office (USPTO), Department of Commerce, for the extension of a patent which claims that medical device. </SUM> <DATES> <HD SOURCE="HED">DATES:</HD> Anyone with knowledge that any of the dates as published (see <E T="02">SUPPLEMENTARY INFORMATION</E> ) are incorrect may submit either electronic or written comments and ask for a redetermination by January 23, 2026. Furthermore, any interested person may petition FDA for a determination regarding whether the applicant for extension acted with due diligence during the regulatory review period by May 26, 2026. See “Petitions” in the <E T="02">SUPPLEMENTARY INFORMATION</E> section for more information. </DATES> <HD SOURCE="HED">ADDRESSES:</HD> You may submit comments as follows. Please note that late, untimely filed comments will not be considered. The <E T="03">https://www.regulations.gov</E> electronic filing system will accept comments until 11:59 p.m. Eastern Time at the end of January 23, 2026. Comments received by mail/hand delivery/courier (for written/paper submissions) will be considered timely if they are received on or before that date. <HD SOURCE="HD2">Electronic Submissions</HD> Submit electronic comments in the following way: • <E T="03">Federal eRulemaking Portal: https://www.regulations.gov.</E> Follow the instructions for submitting comments. Comments submitted electronically, including attachments, to <E T="03">https://www.regulations.gov</E> 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 <E T="03">https://www.regulations.gov.</E> • 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”). <HD SOURCE="HD2">Written/Paper Submissions</HD> Submit written/paper submissions as follows: • <E T="03">Mail/Hand Delivery/Courier (for written/paper submissions):</E> 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.” <E T="03">Instructions:</E> All submissions received must include the Docket No. FDA-2024-E-5681 for Determination of Regulatory Review Period for Purposes of Patent Extension; ALTIUS DIRECT ELECTRICAL NERVE STIMULATION SYSTEM. Received comments, those filed in a timely manner (see <E T="02">ADDRESSES</E> ), will be placed in the docket and, except for those submitted as “Confidential Submissions,” publicly viewable at <E T="03">https://www.regulations.gov</E> 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 <E T="03">https://www.regulations.gov.</E> 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 § 10.20 (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: <E T="03">https://www.govinfo.gov/content/pkg/FR-2015-09-18/pdf/2015-23389.pdf.</E> <E T="03">Docket:</E> For access to the docket to read background documents or the electronic and written/paper comments received, go to <E T="03">https://www.regulations.gov</E> 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. <FURINF> <HD SOURCE="HED">FOR FURTHER INFORMATION CONTACT:</HD> Jack Dan, Office of Regulatory Policy, Center for Drug Evaluation and Research, Food and Drug Administration, 10903 New Hampshire Ave., Bldg. 51, Rm. 6250, Silver Spring, MD 20993, 240-402-6940. </FURINF> <SUPLINF> <HD SOURCE="HED">SUPPLEMENTARY INFORMATION:</HD> <HD SOURCE="HD1">I. Background</HD> The Drug Price Competition and Patent Term Restoration Act of 1984 (Pub. L. 98-417) and the Generic Animal Drug and Patent Term Restoration Act (Pub. L. 100-670) generally provide that a patent may be extended for a period of up to 5 years so long as the patented item (human drug or biological product, animal drug product, medical device, food additive, or color additive) was subject to regulatory review by FDA before the item was marketed. Under these acts, a product's regulatory review period forms the basis for determining the amount of extension an applicant may receive. A regulatory review period consists of two periods of time: a testing phase and an approval phase. For medical devices, the testing phase begins with a clinical investigation of the device and runs until the approval phase begins. The approval phase starts with the initial submission of an application to market the device and continues until permission to market the device is granted. Although only a portion of a regulatory review period may count toward the actual amount of extension that the Director of USPTO may award (half the testing phase must be subtracted as well as any time that may have occurred before the patent was issued), FDA's determination of the length of a regulatory review period for a medical device will include all of the testing phase and approval phase as specified in 35 U.S.C. 156(g)(3)(B). FDA has approved for marketing the medical device ALTIUS DIRECT ELECTRICAL NERVE STIMULATION SYSTEM. ALTIUS DIRECT ELECTRICAL NERVE STIMULATION SYSTEM is indicated as an aid in the management of chronic intractable phantom and residual lower limb post-amputation pain in adult amputees. Subsequent to this approval, the USPTO received a patent term restoration application for ALTIUS DIRECT ELECTRICAL NERVE STIMULATION SYSTEM (U.S. Patent No. 9,295,841) from Neuros Medical, Inc., and the USPTO requested FDA's assistance in determining this patent's eligibility for patent term restoration. In a letter dated March 17, 2025, FDA advised the USPTO that this medical device had undergone a regulatory review period and that the approval of ALTIUS DIRECT ELECTRICAL NERVE STIMULATION SYSTEM represented the first permitted commercial marketing or use of the product. Thereafter, the USPTO requested that FDA determine the product's regulatory review period. <HD SOURCE="HD1">II. Determination of Regulatory Review Period</HD> FDA has determined that the applicable regulatory review period for ALTIUS DIRECT ELECTRICAL NERVE STIMULATION SYSTEM is 3,982 days. Of this time, 3,558 days occurred during the testing phase of the regulatory review period, while 424 days occurred during the approval phase. These periods of time were derived from the following dates: 1. <E T="03">The date an exemption under section 520(g) of the Federal Food, Drug, and Cosmetic Act (FD&C Act) (21 U.S.C. 360j(g)) involving this device became effective:</E> October 3, 2013. FDA has verified the applicant's claim that the date the investigational device exemption for human tests to begin, as required under section 520(g) of the FD&C Act, became effective October 3, 2013. 2. <E T="03">The date an application was initially submitted with respect to the device under section 515 of the FD&C Act (21 U.S.C. 360e):</E> June 30, 2023. FDA has verified the applicant's claim that the premarket approval application (PMA) for ALTIUS DIRECT ELECTRICAL NERVE STIMULATION SYSTEM (PMA P230020) was initially submitted June 30, 2023. 3. <E T="03">The date the application was approved:</E> August 26, 2 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Preview showing 10k of 12k characters. Full document text is stored and available for version comparison. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━