Document Headings

                    Document headings vary by document type but may contain                    the following:                  
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###### Department of Health and Human Services

###### Food and Drug Administration

          - [Docket No. FDA-2023-D-2436]

# AGENCY:

Food and Drug Administration, HHS.

# ACTION:

Notice of availability; extension of comment period.

# SUMMARY:

                        The Food and Drug Administration (FDA or we) is extending the comment period for the notice announcing the availability of a draft guidance entitled “Manufacturing Changes and Comparability for Human Cellular and Gene Therapy Products; Draft Guidance for Industry,” that appeared in the                         **Federal Register**                         of July 14, 2023. We are taking this action in response to requests for an extension to allow interested persons additional time to submit comments.                    

# DATES:

FDA is extending the comment period on the draft guidance published July 14, 2023 (88 FR 45222). Submit either electronic or written comments on the draft guidance by November 13, 2023, to ensure that we consider your comment on the draft guidance before we begin work on the final version of the guidance.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-2023-D-2436 for “Manufacturing Changes and Comparability for Human Cellular and Gene Therapy Products; Draft Guidance for Industry.” 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.” We will review this copy, including the claimed confidential information, in our 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.                

# FOR FURTHER INFORMATION CONTACT:

Karen Fikes, Center for Biologics Evaluation and Research, Food and Drug Administration, 10903 New Hampshire Ave., Bldg. 71, Rm. 7301, Silver Spring, MD 20993-0002, 240-402-7911.

# SUPPLEMENTARY INFORMATION:

                    In the                     **Federal Register**                     of July 14, 2023 (88 FR 45222), we published a notice of availability for a draft guidance entitled “Manufacturing Changes and Comparability for Human Cellular and Gene Therapy Products; Draft Guidance for Industry.” This action opened a docket with a 60-day comment period.                

We have received requests for a 30-day extension of the comment period for the draft guidance. We have considered the requests and are extending the comment period for the draft guidance for 60 days, until November 13, 2023. (A 60-day extension would fall on November 11, 2023, which is a Saturday, so we have extended the comment period until the next business day, which is November 13, 2023.) We believe that a 60-day extension allows adequate time for interested persons to submit comments.

Dated: August 21, 2023.

Lauren K. Roth,

Associate Commissioner for Policy.

[FR Doc. 2023-18235 Filed 8-23-23; 8:45 am]

BILLING CODE 4164-01-P