Notice2026-01068

Minimal Residual Disease and Complete Response in Multiple Myeloma: Use as Endpoints To Support Accelerated Approval; Draft Guidance for Industry; Availability

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Published
January 21, 2026

Issuing agencies

Health and Human Services DepartmentFood and Drug Administration

Abstract

The Food and Drug Administration (FDA, Agency, or we) is announcing the availability of a draft guidance for industry entitled "Minimal Residual Disease and Complete Response in Multiple Myeloma: Use as Endpoints to Support Accelerated Approval." When finalized, this guidance will provide recommendations to sponsors about using minimal residual disease (MRD) and complete response (CR) in multiple myeloma as primary endpoints in trials evaluating drug and biological products intended to treat patients with multiple myeloma to support approval under accelerated approval.

Full Text

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<title>Federal Register, Volume 91 Issue 13 (Wednesday, January 21, 2026)</title>
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[Federal Register Volume 91, Number 13 (Wednesday, January 21, 2026)]
[Notices]
[Pages 2537-2539]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-01068]


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DEPARTMENT OF HEALTH AND HUMAN SERVICES

Food and Drug Administration

[Docket No. FDA-2025-D-2616]


Minimal Residual Disease and Complete Response in Multiple 
Myeloma: Use as Endpoints To Support Accelerated Approval; Draft 
Guidance for Industry; Availability

AGENCY: Food and Drug Administration, HHS.

ACTION: Notice of availability.

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SUMMARY: The Food and Drug Administration (FDA, Agency, or we) is 
announcing the availability of a draft guidance for industry entitled 
``Minimal Residual Disease and Complete Response in Multiple Myeloma: 
Use as Endpoints to Support Accelerated Approval.'' When finalized, 
this guidance will provide recommendations to sponsors about using 
minimal residual disease (MRD) and complete response (CR) in multiple 
myeloma as primary endpoints in trials evaluating drug and biological 
products intended to treat patients with multiple myeloma to support 
approval under accelerated approval.

DATES: Submit either electronic or written comments on the draft 
guidance by March 23, 2026 to ensure that the Agency considers your 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:
    <bullet> Federal eRulemaking Portal: <a href="https://www.regulations.gov">https://www.regulations.gov</a>. 
Follow the instructions for submitting comments. Comments submitted 
electronically, including attachments, to <a href="https://www.regulations.gov">https://www.regulations.gov</a> 
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 <a href="https://www.regulations.gov">https://www.regulations.gov</a>.
    <bullet> 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:
    <bullet> 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.
    <bullet> 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-2025-D-2616 for ``Minimal Residual Disease and Complete Response in 
Multiple Myeloma: Use as Endpoints to Support Accelerated Approval.'' 
Received comments will be placed in the docket and, except for those

[[Page 2538]]

submitted as ``Confidential Submissions,'' publicly viewable at <a href="https://www.regulations.gov">https://www.regulations.gov</a> or at the Dockets Management Staff between 9 a.m. 
and 4 p.m., Monday through Friday, 240-402-7500.
    <bullet> 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 <a href="https://www.regulations.gov">https://www.regulations.gov</a>. 
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: <a href="https://www.govinfo.gov/content/pkg/FR-2015-09-18/pdf/2015-23389.pdf">https://www.govinfo.gov/content/pkg/FR-2015-09-18/pdf/2015-23389.pdf</a>.
    Docket: For access to the docket to read background documents or 
the electronic and written/paper comments received, go to <a href="https://www.regulations.gov">https://www.regulations.gov</a> 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)).
    Submit written requests for single copies of the draft guidance to 
the Division of Drug Information, Center for Drug Evaluation and 
Research, Food and Drug Administration, 10001 New Hampshire Ave., 
Hillandale Building, 4th Floor, Silver Spring, MD 20993-0002. Send one 
self-addressed adhesive label to assist that office in processing your 
requests. See the SUPPLEMENTARY INFORMATION section for electronic 
access to the draft guidance document.

FOR FURTHER INFORMATION CONTACT: Bindu Kanapuru, Center for Drug 
Evaluation and Research, Food and Drug Administration, 10903 New 
Hampshire Ave., Bldg. 22, Rm. 2102, Silver Spring, MD 20993, 240-402-
1279; Philip Kurs, Center for Biologics Evaluation and Research, Food 
and Drug Administration, 240-402-7911; Center for Devices and 
Radiological Health, Food and Drug Administration, 
<a href="/cdn-cgi/l/email-protection#0b484f59434867626562686a674e7d626f6e65686e4b6d6f6a25636378256c647d"><span class="__cf_email__" data-cfemail="b6f5f2e4fef5dadfd8dfd5d7daf3c0dfd2d3d8d5d3f6d0d2d798dedec598d1d9c0">[email&#160;protected]</span></a>.

SUPPLEMENTARY INFORMATION: 

I. Background

    FDA is announcing the availability of a draft guidance for industry 
entitled ``Minimal Residual Disease and Complete Response in Multiple 
Myeloma: Use as Endpoints to Support Accelerated Approval.'' When 
finalized, this guidance will provide recommendations to sponsors about 
using MRD and CR in multiple myeloma as primary endpoints in trials 
evaluating drug and biological products intended to treat patients with 
multiple myeloma to support approval under accelerated approval. For 
the purpose of this guidance, MRD endpoint refers to MRD negativity 
rate as assessed in the bone marrow by either flow cytometry- or 
sequencing-based methods in patients who have achieved a CR. The 
definition of CR includes patients who achieved CR or stringent CR.
    Multiple myeloma is a plasma cell malignancy and accounts for 18% 
of all hematologic malignancies in the United States. In multiple 
myeloma, accelerated approval based on an endpoint of overall response 
rate (ORR, defined as a partial response or better) supported by 
duration of response has expedited access to new therapies. However, 
the overall response rates observed with new therapeutics have 
surpassed 60-70% in the relapsed or refractory setting and 90% in the 
newly diagnosed setting. With the improved outcomes observed in this 
disease area, demonstrating statistically significant difference in 
overall response rates may require infeasibly large clinical trials. 
Additionally, more sensitive response assessments will allow for 
continued expeditious drug development.
    MRD, which is generally assessed in the bone marrow by either flow 
cytometry- or sequencing-based methods, can further quantify the depth 
of response to treatment beyond ORR or CR. MRD is a recognized 
prognostic biomarker; patients who attain MRD-negativity have improved 
long-term outcomes. The 2016 International Myeloma Working Group (IMWG) 
incorporated standardized definitions of MRD-negative response resulted 
in greater inclusion of these assessments in clinical trials. In this 
treatment landscape, there has been interest in the use of MRD as a 
primary endpoint for clinical trials intended to support regulatory 
decision-making as opposed to an exploratory or a secondary endpoint.
    At the April 12, 2024, Oncology Drug Advisory Committee meeting, 
pooled analyses of clinical trial data submitted to the Agency was 
presented to show the relationship between MRD and long-term outcomes 
(i.e., Progression-Free Survival (PFS) and Overall Survival (OS)). 
Members unanimously agreed that it is acceptable to use MRD as an 
endpoint to support accelerated approval of drug or biological products 
intended to treat multiple myeloma.
    When finalized, this guidance will provide specific recommendations 
for designing clinical trial using MRD as an endpoint for accelerated 
approval. The recommendations include general drug development 
considerations, trial design and statistical considerations, and assay 
considerations for MRD evaluation.
    The draft guidance also includes considerations when proposing CR 
as an endpoint for accelerated approval as well as other regulatory 
considerations. CR is also a recognized prognostic biomarker; patients 
who attain CR have improved long-term outcomes. FDA conducted a pooled 
analysis of clinical trial data, which demonstrated an association 
between CR and long-term outcomes (i.e., PFS and OS). The 2016 IMWG 
response criteria incorporate standardized definitions of CR and CR 
rate, which have been assessed in numerous multiple myeloma trials, 
often as a secondary endpoint with control of Type I error. Like MRD, 
CR can be used as an endpoint to support accelerated approval in trials 
evaluating drug and biological products intended to treat patients with 
multiple myeloma.
    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 ``Minimal 
Residual Disease and Complete Response in Multiple Myeloma: Use as 
Endpoints to Support Accelerated Approval.'' 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.
    As we develop final guidance on this topic, FDA will consider 
comments on costs or cost savings the guidance may generate, relevant 
for Executive Order 14192.

[[Page 2539]]

II. Paperwork Reduction Act of 1995

    While this guidance contains no 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 21 CFR 201.56 and 201.57 have been approved under OMB control number 
0910-0572; the collections of information in 21 CFR part 314 have been 
approved under OMB control number 0910-0001; the collections of 
information in 21 CFR part 601 have been approved under OMB control 
number 0910-0338.

III. Electronic Access

    Persons with access to the internet may obtain the draft guidance 
at <a href="https://www.fda.gov/drugs/guidance-compliance-regulatory-information/guidances-drugs">https://www.fda.gov/drugs/guidance-compliance-regulatory-information/guidances-drugs</a>, <a href="https://www.fda.gov/regulatory-information/search-fda-guidance-documents">https://www.fda.gov/regulatory-information/search-fda-guidance-documents</a>, or <a href="https://www.regulations.gov">https://www.regulations.gov</a>.

Lowell M. Zeta,
Acting Deputy Commissioner for Policy, Legislation, and International 
Affairs.
[FR Doc. 2026-01068 Filed 1-20-26; 8:45 am]
BILLING CODE 4164-01-P


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