Rule2025-08145

Medical Devices; Immunology and Microbiology Devices; Classification of the Microbial Nucleic Acid Storage and Stabilization Device

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Published
May 9, 2025
Effective
May 9, 2025

Issuing agencies

Health and Human Services DepartmentFood and Drug Administration

Abstract

The Food and Drug Administration (FDA, Agency, or we) is classifying the microbial nucleic acid storage and stabilization device into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the microbial nucleic acid storage and stabilization device's classification. We are taking this action because we have determined that classifying the device into class II (special controls) will provide a reasonable assurance of safety and effectiveness of the device. We believe this action will also enhance patients' access to beneficial innovative devices, in part by reducing regulatory burdens.

Full Text

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<title>Federal Register, Volume 90 Issue 89 (Friday, May 9, 2025)</title>
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[Federal Register Volume 90, Number 89 (Friday, May 9, 2025)]
[Rules and Regulations]
[Pages 19644-19645]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-08145]



[[Page 19644]]

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DEPARTMENT OF HEALTH AND HUMAN SERVICES

Food and Drug Administration

21 CFR Part 866

[Docket No. FDA-2025-N-0710]


Medical Devices; Immunology and Microbiology Devices; 
Classification of the Microbial Nucleic Acid Storage and Stabilization 
Device

AGENCY: Food and Drug Administration, Department of Health and Human 
Services (HHS).

ACTION: Final amendment; final order.

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SUMMARY: The Food and Drug Administration (FDA, Agency, or we) is 
classifying the microbial nucleic acid storage and stabilization device 
into class II (special controls). The special controls that apply to 
the device type are identified in this order and will be part of the 
codified language for the microbial nucleic acid storage and 
stabilization device's classification. We are taking this action 
because we have determined that classifying the device into class II 
(special controls) will provide a reasonable assurance of safety and 
effectiveness of the device. We believe this action will also enhance 
patients' access to beneficial innovative devices, in part by reducing 
regulatory burdens.

DATES: This order is effective May 9, 2025. The classification was 
applicable on March 19, 2018.

FOR FURTHER INFORMATION CONTACT: Dina Jerebitski, Center for Devices 
and Radiological Health, Food and Drug Administration, 10903 New 
Hampshire Ave., Bldg. 66, Rm. 3574, Silver Spring, MD 20993-0002, 301-
796-2411, <a href="/cdn-cgi/l/email-protection#2064494e410e6a455245424954534b49604644410e4848530e474f56"><span class="__cf_email__" data-cfemail="e8ac818689c6a28d9a8d8a819c9b8381a88e8c89c680809bc68f879e">[email&#160;protected]</span></a>.

SUPPLEMENTARY INFORMATION:

I. Background

    Upon request, FDA has classified the microbial nucleic acid storage 
and stabilization device as class II (special controls), which we have 
determined will provide a reasonable assurance of safety and 
effectiveness. In addition, we believe this action will enhance 
patients' access to beneficial innovation, in part by reducing 
regulatory burdens by placing the device into a lower device class than 
the automatic class III assignment.
    The automatic assignment of class III occurs by operation of law 
and without any action by FDA, regardless of the level of risk posed by 
the new device. Any device that was not in commercial distribution 
before May 28, 1976, is automatically classified as, and remains 
within, class III and requires premarket approval unless and until FDA 
takes an action to classify or reclassify the device (see 21 U.S.C. 
360c(f)(1)). We refer to these devices as ``postamendments devices'' 
because they were not in commercial distribution prior to the date of 
enactment of the Medical Device Amendments of 1976, which amended the 
Federal Food, Drug, and Cosmetic Act (FD&C Act).
    FDA may take a variety of actions in appropriate circumstances to 
classify or reclassify a device into class I or II. We may issue an 
order finding a new device to be substantially equivalent under section 
513(i) of the FD&C Act (see 21 U.S.C. 360c(i)) to a predicate device 
that does not require premarket approval. We determine whether a new 
device is substantially equivalent to a predicate device by means of 
the procedures for premarket notification under section 510(k) of the 
FD&C Act (21 U.S.C. 360(k)) and part 807 (21 CFR part 807).
    FDA may also classify a device through ``De Novo'' classification, 
a common name for the process authorized under section 513(f)(2) of the 
FD&C Act (see also part 860, subpart D (21 CFR part 860, subpart D)). 
Section 207 of the Food and Drug Administration Modernization Act of 
1997 (Pub. L. 105-115) established the first procedure for De Novo 
classification. Section 607 of the Food and Drug Administration Safety 
and Innovation Act (Pub. L. 112-144) modified the De Novo application 
process by adding a second procedure. A device sponsor may utilize 
either procedure for De Novo classification.
    Under the first procedure, the person submits a 510(k) for a device 
that has not previously been classified. After receiving an order from 
FDA classifying the device into class III under section 513(f)(1) of 
the FD&C Act, the person then requests a classification under section 
513(f)(2).
    Under the second procedure, rather than first submitting a 510(k) 
and then a request for classification, if the person determines that 
there is no legally marketed device upon which to base a determination 
of substantial equivalence, that person requests a classification under 
section 513(f)(2) of the FD&C Act.
    Under either procedure for De Novo classification, FDA is required 
to classify the device by written order within 120 days. The 
classification will be according to the criteria under section 
513(a)(1) of the FD&C Act. Although the device was automatically placed 
within class III, the De Novo classification is considered to be the 
initial classification of the device.
    We believe this De Novo classification will enhance patients' 
access to beneficial innovation, in part by reducing regulatory 
burdens. When FDA classifies a device into class I or II via the De 
Novo process, the device can serve as a predicate for future devices of 
that type, including for 510(k)s (see section 513(f)(2)(B)(i) of the 
FD&C Act). As a result, other device sponsors do not have to submit a 
De Novo request or PMA to market a substantially equivalent device (see 
section 513(i) of the FD&C Act, defining ``substantial equivalence''). 
Instead, sponsors can use the less-burdensome 510(k) process, when 
necessary, to market their device.

II. De Novo Classification

    On May 25, 2017, FDA received Longhorn Vaccines and Diagnostics 
LLC's request for De Novo classification of the PrimeStore MTM. FDA 
reviewed the request in order to classify the device under the criteria 
for classification set forth in section 513(a)(1) of the FD&C Act.
    We classify devices into class II if general controls by themselves 
are insufficient to provide reasonable assurance of safety and 
effectiveness, but there is sufficient information to establish special 
controls that, in combination with the general controls, provide 
reasonable assurance of the safety and effectiveness of the device for 
its intended use (see 21 U.S.C. 360c(a)(1)(B)). After review of the 
information submitted in the request, we determined that the device can 
be classified into class II with the establishment of special controls. 
FDA has determined that these special controls, in addition to the 
general controls, will provide reasonable assurance of the safety and 
effectiveness of the device.
    Therefore, on March 19, 2018, FDA issued an order to the requester 
classifying the device into class II. In this final order, FDA is 
codifying the classification of the device by adding 21 CFR 
866.2950.\1\ We have named the generic type of device ``microbial 
nucleic acid storage and stabilization device,'' and it is identified 
as a device that consists of a container and reagents

[[Page 19645]]

intended to stabilize microbial nucleic acids in human specimens for 
subsequent isolation and purification of nucleic acids for further 
molecular testing. The device is not intended for preserving morphology 
or viability of microorganisms.
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    \1\ FDA notes that the ``ACTION'' caption for this final order 
is styled as ``Final amendment; final order,'' rather than ``Final 
order.'' Beginning in December 2019, this editorial change was made 
to indicate that the document ``amends'' the Code of Federal 
Regulations. The change was made in accordance with the Office of 
the Federal Register's (OFR) interpretations of the Federal Register 
Act (44 U.S.C. chapter 15), its implementing regulations (1 CFR 5.9 
and parts 21 and 22), and the Document Drafting Handbook.
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    FDA has identified the following risks to health associated 
specifically with this type of device and the measures required to 
mitigate these risks in table 1.

 Table 1--Microbial Nucleic Acid Storage and Stabilization Device Risks
                         and Mitigation Measures
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  Identified risks to health              Mitigation measures
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Failure to stabilize pathogen  General Controls and Special Controls (1)
 nucleic acid resulting in a    (21 CFR 866.2950(b)(1)), (2) (21 CFR
 false negative result.         866.2950(b)(2)), and (3) (21 CFR
                                866.2950(b)(3)).
Failure to inactivate the      General Controls and Special Controls (1)
 specimen.                      (21 CFR 866.2950(b)(1)); (2)(i) (21 CFR
                                866.2950(b)(2)(i)), (2)(ii) (21 CFR
                                866.2950(b)(2)(ii)), and (2)(iv) (21 CFR
                                866.2950(b)(2)(iv)); and (3)(i) ( 21 CFR
                                866.2950(b)(3)(i)), (3)(ii) (21 CFR
                                866.2950(b)(3)(ii)), and (3)(iv) (21 CFR
                                866.2950(b)(3)(iv)).
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    FDA has determined that special controls, in combination with the 
general controls, address these risks to health and provide reasonable 
assurance of safety and effectiveness. For a device to fall within this 
classification, and thus avoid automatic classification in class III, 
it would have to comply with the special controls named in this final 
order. The necessary special controls appear in the regulation codified 
by this order. This device is subject to premarket notification 
requirements under section 510(k) of the FD&C Act.

III. Analysis of Environmental Impact

    The Agency has determined under 21 CFR 25.34(b) that this action is 
of a type that does not individually or cumulatively have a significant 
effect on the human environment. Therefore, neither an environmental 
assessment nor an environmental impact statement is required.

IV. Paperwork Reduction Act of 1995

    This final order establishes special controls that refer to 
previously approved collections of information found in other FDA 
regulations and guidance. These collections of information are subject 
to review by the Office of Management and Budget (OMB) under the 
Paperwork Reduction Act of 1995 (44 U.S.C. 3501-3521). The collections 
of information in part 860, subpart D, regarding De Novo Classification 
have been approved under OMB control number 0910-0844; the collections 
of information in 21 CFR part 814, subparts A through E, regarding 
premarket approval, have been approved under OMB control number 0910-
0231; the collections of information in part 807, subpart E, regarding 
premarket notification submissions, have been approved under OMB 
control number 0910-0120; the collections of information in 21 CFR part 
820, regarding quality system regulation, have been approved under OMB 
control number 0910-0073; and the collections of information in 21 CFR 
parts 801 and 809, regarding labeling, have been approved under OMB 
control number 0910-0485.

List of Subjects in 21 CFR Part 866

    Biologics, Laboratories, Medical devices.

    Therefore, under the Federal Food, Drug, and Cosmetic Act and under 
authority delegated to the Commissioner of Food and Drugs, 21 CFR part 
866 is amended as follows:

PART 866--IMMUNOLOGY AND MICORBIOLOGY DEVICES

0
1. The authority citation for part 866 continues to read as follows:

    Authority:  21 U.S.C. 351, 360, 360c, 360e, 360j, 360l, 371.


0
2. Add Sec.  866.2950 to subpart C to read as follows:


Sec.  866.2950  Microbial nucleic acid storage and stabilization 
device.

    (a) Identification. A microbial nucleic acid storage and 
stabilization device is a device that consists of a container and 
reagents intended to stabilize microbial nucleic acids in human 
specimens for subsequent isolation and purification of nucleic acids 
for further molecular testing. The device is not intended for 
preserving morphology or viability of microorganisms.
    (b) Classification. Class II (special controls). The special 
controls for this device are:
    (1) The intended use for the labeling required under Sec.  809.10 
of this chapter must include a detailed description of microorganisms 
and types of human specimens intended to be preserved.
    (2) The labeling required under Sec.  809.10(b) of this chapter 
must include the following:
    (i) A detailed device description, including all device components;
    (ii) Performance characteristics from applicable analytical 
studies, including nucleic acid stability and microorganism 
inactivation;
    (iii) A limiting statement that erroneous results may occur when 
the transport device is not compatible with molecular testing; and
    (iv) A limiting statement that the device has only been validated 
to preserve the representative microorganisms used in the analytical 
studies.
    (3) Design verification and validation must include the following:
    (i) Overall device design, including all device components and all 
control elements incorporated into the analytical validation 
procedures;
    (ii) Thorough description of the microorganisms and methodology 
used in the validation of the device including, extraction platforms 
and assays used for the detection of preserved nucleic acids; and
    (iii) The limit of detection (LoD) of the molecular test used to 
establish microorganism nucleic acid stability.

    Dated: May 5, 2025.
Grace R. Graham,
Deputy Commissioner for Policy, Legislation, and International Affairs.
[FR Doc. 2025-08145 Filed 5-8-25; 8:45 am]
BILLING CODE 4164-01-P


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Indexed from Federal Register on May 9, 2025.

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