K Number
K231688
Device Name
ImPACT Version 4
Date Cleared
2023-09-16

(99 days)

Product Code
Regulation Number
882.1471
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
ImPACT is intended for use as a computer-based neurocogntive test battery to aid in the assessment and management of concussion. ImPACT is a neurocognitive test battery that provides healthcare professionals with objective measure of neurocognitive functioning as an assessment aid and in the management of concussion in individuals ages 12-80.
Device Description
ImPACT® (Immediate Post-Concussion Assessment and Cognitive Testing) is a computer-based neurocognitive test battery that allows healthcare professionals to conduct a series of tests on individuals to gather data related to the neurocognitive functioning of the test subject. This test battery measures various aspects of neurocognitive functioning including reaction time, memory, attention, spatial processing speed, and records symptoms of a test subject. ImPACT Version 4 is similar to the paper-and-pencil neuropsychological tests that have long been used by psychologists to evaluate cognition, and memory related to a wide variety of disabilities. The device is not intended to provide a direct diagnosis or a return-to-activity recommendation, it does not directly manage or provide any treatment recommendations, and any interpretation of the results should be made only by qualified healthcare professional. The neurocognitive assessment represents only one aspect of assisting healthcare professionals in evaluating and managing individuals with cognitive function impairment related to TBI (concussion).
More Information

No
The summary explicitly states "Mentions AI, DNN, or ML: Not Found" and describes the device as similar to traditional paper-and-pencil tests. The performance studies focus on standardization, normative data, and test-retest reliability, not on the training or validation of AI/ML models.

No

The device is a diagnostic aid for assessing neurocognitive functioning related to concussions and does not provide treatment or therapeutic intervention.

Yes

ImPACT is intended to aid in the assessment and management of concussion by providing objective measures of neurocognitive functioning, which are used by healthcare professionals to evaluate and manage individuals. While it does not provide a direct diagnosis, its role in assessment firmly places it in the diagnostic space.

Yes

The device is described as a "computer-based neurocognitive test battery" and the performance studies focus on "Software Verification and Validation" and clinical data collected using an "iPad". There is no mention of any hardware components being part of the device itself, only the platform it runs on.

Based on the provided information, this device is not an IVD (In Vitro Diagnostic).

Here's why:

  • IVD Definition: In Vitro Diagnostics are medical devices used to examine specimens taken from the human body, such as blood, urine, or tissue, to provide information about a person's health.
  • Device Function: ImPACT is a computer-based neurocognitive test battery. It assesses cognitive function through interactive tasks and questionnaires, not by analyzing biological specimens.
  • Intended Use: The intended use is to "aid in the assessment and management of concussion" by providing "objective measure of neurocognitive functioning." This is a functional assessment, not a diagnostic test based on biological samples.
  • Device Description: The description explicitly states it's a "computer-based neurocognitive test battery" that measures "reaction time, memory, attention, spatial processing speed, and records symptoms." These are all behavioral and cognitive measures, not biological ones.
  • Lack of Biological Specimen Analysis: There is no mention of collecting or analyzing any biological samples from the patient.

Therefore, because ImPACT does not analyze specimens taken from the human body, it does not fit the definition of an In Vitro Diagnostic device.

N/A

Intended Use / Indications for Use

ImPACT is intended for use as a computer-based neurocogntive test battery to aid in the assessment and management of concussion.

ImPACT is a neurocognitive test battery that provides healthcare professionals with objective measure of neurocognitive functioning as an assessment aid and in the management of concussion in individuals ages 12-80.

lmPACT Version 4 is intended for use as a computer-based neurocognitive test battery to aid in the assessment and management of concussion. ImPACT Version 4 is a neurocognitive test battery that provides healthcare professionals with objective measure of neurocognitive functioning as an assessment aid and in the management of concussion in individuals ages 12-80.

Product codes (comma separated list FDA assigned to the subject device)

POM

Device Description

ImPACT (Immediate Post-Concussion Assessment and Cognitive Testing) is a computer-based neurocognitive test battery that allows healthcare professionals to conduct a series of tests on individuals to gather data related to the neurocognitive functioning of the test subject. This test battery measures various aspects of neurocognitive functioning including reaction time, memory, attention, spatial processing speed, and records symptoms of a test subject. ImPACT Version 4 is similar to the paper-and-pencil neuropsychological tests that have long been used by psychologists to evaluate cognition, and memory related to a wide variety of disabilities.

The device is not intended to provide a direct diagnosis or a return-to-activity recommendation, it does not directly manage or provide any treatment recommendations, and any interpretation of the results should be made only by qualified healthcare professional. The neurocognitive assessment represents only one aspect of assisting healthcare professionals in evaluating and managing individuals with cognitive function impairment related to TBI (concussion).

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Not Found

Indicated Patient Age Range

12-80

Intended User / Care Setting

healthcare professionals / Unsupervised and supervised environment for baseline testing. Supervised environment only for post-injury testing.

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Software Verification and Validation: Software verification activities including code reviews, design reviews, evaluations, analyses, traceability assessment, and manual testing were performed in accordance with standards and guidance documents to demonstrate device performance and functionality. All tests met the required acceptance criteria: Code reviews: peer review of all modified code performed by software developers. Walkthroughs and design reviews of mock-ups and prototypes by a cross-functional team including Developers, Quality Assurance, Regulatory Affairs function, Clinical experts, Company Management, and other stakeholders. Software Verification and Validation testing including automated and manual testing. Regression Testing: Comprehensive end testing of the test battery to verify that the modifications did not affect the existing functionality.

Clinical Data: The 510(k) included the results of clinical studies. The results of these studies demonstrate the New Device provides a reliable measure of cognitive function to aid in assessment and management of concussion and is therefore substantially equivalent to the Predicate Device.

i. Standardization and Normative sample: The normative sample 1495 subjects ages 12-59 (670 males, 825 females) was collected prospectively from 4 different sites with study participants across the US. Data collection took place in 2022 and 2023. The sites were approved to collected data by two ethics boards, Advarra IRB Services (for supervised testing) and St. Joseph's University in Philadelphia (for unsupervised remote testing). All subjects met the appropriate inclusion criteria, which are the same as those used for creating normative tables for the mouse and trackpad in the predicate device. Data for the new sample was conducted in mixed environment including supervised and unsupervised testing to best approximate the real-world performance.

ii. Test-retest Reliability: The test-retest reliability was also calculated in a sample of participants using the iPad version of the test. Test takers were 116 individuals ages 12-59 from the standardization sample who completed an initial baseline assessment using an iPad, and a second baseline with a between test interval ranging of 7 to 21 days (mean=12.7 days) SD=4.3 days). Test-takers were 40 males (34.5%, mean age 26.6, SD=14.2 years) and 76 females (65.5%, mean age 28.9, SD=14.4 years), with no significant age difference between based on gender (p=.40). Test-retest reliability was calculated Pearson's Product-Moment Correlation coefficients as well as intra-class correlation coefficients (ICCs) for the ImPACT Composite Scores as well as Two Factor Scores. Pearson's correlations and ICCs are consistent with those from the test-retest coefficients obtained using Mouse and Trackpad inputs of the predicate device.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

K202485

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

K170551

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 882.1471 Computerized cognitive assessment aid for concussion.

(a)
Identification. The computerized cognitive assessment aid for concussion is a prescription device that uses an individual's score(s) on a battery of cognitive tasks to provide an indication of the current level of cognitive function in response to concussion. The computerized cognitive assessment aid for concussion is used only as an assessment aid in the management of concussion to determine cognitive function for patients after a potential concussive event where other diagnostic tools are available and does not identify the presence or absence of concussion. It is not intended as a stand-alone diagnostic device.(b)
Classification. Class II (special controls). The special controls for this device are:(1) Software, including any proprietary algorithm(s) used by the device to arrive at its interpretation of the patient's cognitive function, must be described in detail in the software requirements specification (SRS) and software design specification (SDS). Software verification, validation, and hazard analysis must be performed.
(2) Clinical performance data must be provided that demonstrates how the device functions as an interpretation of the current level of cognitive function in an individual that has recently received an injury that causes concern about a possible concussion. The testing must:
(i) Evaluate device output and clinical interpretation.
(ii) Evaluate device test-retest reliability of the device output.
(iii) Evaluate construct validity of the device cognitive assessments.
(iv) Describe the construction of the normative database, which includes the following:
(A) How the clinical workup was completed to establish a “normal” population, including the establishment of inclusion and exclusion criteria.
(B) Statistical methods and model assumptions used.
(3) The labeling must include:
(i) A summary of any clinical testing conducted to demonstrate how the device functions as an interpretation of the current level of cognitive function in a patient that has recently received an injury that causes concern about a possible concussion. The summary of testing must include the following:
(A) Device output and clinical interpretation.
(B) Device test-retest reliability of the device output.
(C) Construct validity of the device cognitive assessments.
(D) A description of the normative database, which includes the following:
(
1 ) How the clinical workup was completed to establish a “normal” population, including the establishment of inclusion and exclusion criteria.(
2 ) How normal values will be reported to the user.(
3 ) Representative screen shots and reports that will be generated to provide the user results and normative data.(
4 ) Statistical methods and model assumptions used.(
5 ) Whether or not the normative database was adjusted due to differences in age and gender.(ii) A warning that the device should only be used by health care professionals who are trained in concussion management.
(iii) A warning that the device does not identify the presence or absence of concussion or other clinical diagnoses.
(iv) A warning that the device is not a stand-alone diagnostic.
(v) Any instructions technicians must convey to patients regarding the administration of the test and collection of cognitive test data.

0

September 16, 2023

Image /page/0/Picture/1 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which consists of the letters "FDA" in a blue square, followed by the words "U.S. FOOD & DRUG" in blue, with the word "ADMINISTRATION" underneath.

ImPACT Applications, Inc. Michael Zagorski Director of Regulatory Affairs 2140 Norcor Ave.. Suite 115 Coralville, Iowa 52241

Re: K231688

Trade/Device Name: ImPACT Version 4 Regulation Number: 21 CFR 882.1471 Regulation Name: Computerized cognitive assessment aid for concussion Regulatory Class: Class II Product Code: POM Dated: August 17, 2023 Received: August 17, 2023

Dear Michael Zagorski:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part

1

801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4. Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).

Sincerely.

Jay R. Gupta -S

Jay Gupta Assistant Director DHT5A: Division of Neurosurgical, Neurointerventional and Neurodiagnostic Devices OHT5: Office of Neurological and Physical Medicine Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

2

Indications for Use

510(k) Number (if known) K231688

Device Name ImPACT Version 4

Indications for Use (Describe)

ImPACT is intended for use as a computer-based neurocogntive test battery to aid in the assessment and management of concussion.

ImPACT is a neurocognitive test battery that provides healthcare professionals with objective measure of neurocognitive functioning as an assessment aid and in the management of concussion in individuals ages 12-80.

Type of Use (Select one or both, as applicable)

Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)

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3

Image /page/3/Picture/0 description: The image is a logo for ImPACT Applications, Inc. The logo features a stylized image of a human head in profile, with a brain depicted inside the head. To the right of the head is the text "ImPACT" in a sans-serif font, with the "Im" in a dark blue color and the "PACT" in a lighter blue color. Below the word "ImPACT" is the text "APPLICATIONS, INC." in a smaller, sans-serif font.

Prepared Date: June 08, 2023

Submitter Information:

| Company: | ImPACT Applications, Inc.
2140 Norcor Ave., Suite 115
Coralville, IA 52241 |
|------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------|
| Contract Person: | Michael Zagorski
Director of Regulatory Affairs
ImPACT Applications, Inc.
Tel: 412-567-8400 ext. 939
Email: mzagorski@impacttest.com |
| Device Information: | |
| Trade Name: | ImPACT® Version 4 |
| Classification Name: | Computerized cognitive assessment aid for concussion |
| Device Classification: | Class II |
| Product Code: | POM, 21 CFR 882.1471 |
| Panel: | Neurology |
| Predicate Device: | ImPACT, K202485 |
| Reason for submission: | Device Modifications |

Indications for Use:

lmPACT Version 4 is intended for use as a computer-based neurocognitive test battery to aid in the assessment and management of concussion. ImPACT Version 4 is a neurocognitive test battery that provides healthcare professionals with objective measure of neurocognitive functioning as an assessment aid and in the management of concussion in individuals ages 12-80.

Device Description:

ImPACT® (Immediate Post-Concussion Assessment and Cognitive Testing) is a computer-based neurocognitive test battery that allows healthcare professionals to conduct a series of tests on individuals to gather data related to the neurocognitive functioning of the test subject. This test battery measures various aspects of neurocognitive functioning including reaction time, memory, attention, spatial processing speed, and records symptoms of a test subject. ImPACT Version 4 is similar to the paper-and-pencil neuropsychological tests that have long been used by psychologists to evaluate cognition, and memory related to a wide variety of disabilities.

The device is not intended to provide a direct diagnosis or a return-to-activity recommendation, it does not directly manage or provide any treatment recommendations, and any interpretation of the results should be made only by qualified healthcare professional. The neurocognitive assessment represents only one aspect of assisting healthcare professionals in evaluating and managing individuals with cognitive function impairment related to TBI (concussion).

4

Image /page/4/Picture/1 description: The image is a logo for ImPACT Applications, Inc. The logo features a stylized image of a human head with a brain inside, followed by the text "ImPACT" in blue, with "Applications, Inc." written in smaller letters below. The logo is simple and professional, and it is likely used to represent a company that specializes in brain-related products or services.

Device Modifications:

The New Device, ImPACT Version 4, is substantially equivalent to the Predicate Device (ImPACT Version 4) cleared under K202485. Both devices have the same intended use as a computerized neurocognitive test to aid in the assessment and management of concussion. They are also identical in terms of technological characteristics as both are stand-alone software applications using a general-purpose computing platform to electronically record objective performance measurements (speed and accuracy) as the test taker responds to stimuli presented on the screen via input devices. Further, there are no changes to the functionality or to the design of the neurocognitive test battery; all tasks, stimuli, and captured information remain identical to the predicate.

There are no changes to the intended use, use environment characteristics, or the conditions assessed.

The differences between the new device and the predicate include:

    1. normative database for iPad for ages 12-59;
    1. minor software modifications to support use of touchscreen devices, to improve maintainability, cybersecurity and enhance user experience.
Table 1. Predicate Comparison.
CharacteristicPredicate Device: ImPACT Version 4
(K202485)Reference Device: ImPACT
Quick Test (K170551)New Device: ImPACT
Version 4 (rev 4.1)
Intended UseImPACT Version 4 is intended for use as a
computer-based neurocognitive test battery to
aid in the assessment and management of
concussion.

ImPACT Version 4 is a neurocognitive test
battery that provides healthcare professionals
with objective measure of neurocognitive
functioning as an assessment aid and in the
management of concussion in individuals ages
12-80. | ImPACT Quick Test is
intended for use as a
computerized cognitive test
to aid in the assessment and
management of concussion in
individuals ages 12-70. | Same as Predicate Device |
| Patient Population | 12-80 | 12-70 | Same as Predicate Device |
| Use Environment | Unsupervised and supervised environment for
baseline testing.
Supervised environment only for post-injury
testing. | Supervised environment only
for post-injury testing. | Same as Predicate Device |
| Neurocognitive test
battery | 1. Demographic data, (age, gender,
concussion history, relevant medical
information)
2. Symptoms list and questionnaires
3. Neurocognitive test battery consisting of 6
modules:
Module 1: Word Memory and Delayed
Memory Recognition Module 2: Design Memory and Delayed
Design Recognition Module 3: X's and O's Module 4: Symbol Matching Module 5: Color Match Module 6: Three Letter Memory | 1. Basic Demographic data,
(age, gender)
2. Observed Signs and
Reported Symptoms list
3. Neurocognitive test
consisting of 3 modules:
Module 1: Symbol
Match Module 2: Three
Letters Module 3: Eye
Tracker | Same as Predicate Device |
| Results | 1. Recording and scoring of symptoms
2. Raw Scores, Composite Scores, and
validity supporting indexes.
3. Normative data | 1. Recording and scoring of
symptoms
2. Composite Scores
3. Normative data | Equivalent.
Added normative database
for tests taken on an iPad |

5

ImPACT Version 4.1 - Traditional 510(k) Summary
Suggest options or
treatmentNoNoSame as predicate
PlatformStand-alone software running on general
purpose commercial off-the-shelf personal
computers (desktops, laptops), with a modern
web browser connected to the internet.Apple iPadEquivalent.
The new device adds option
to administer the test on an
iPad.
Software TechnologySoftware application, written in HTML5,
accessed via standard web browserSoftware application native
to iPadOSEquivalent.
On an iPad, the test can be
accessed through a web
browser (like the predicate)
or native iPadOS application
Stimulus presentationInformation and stimulus displayed on a
desktop or laptop computer screenInformation and stimulus
displayed on an iPadNew device adds option to
use iPad (stimulus displayed
on iPad screen)
Stimulus capture (test
taker response)Device uses computer peripherals to capture te
taker's responseDevice uses iPad touchscreen
to capture test taker's
responseEquivalent.
New device captures
responses via touchscreen
Data StorageRemote central databaseRemote central databaseSame as predicate
Standards UsedISO 14971 and IEC 62304ISO 14971 and IEC 62304Same as predicate

Summary of Performance Testing:

Software Verification and Validation.

lmPACT Version 4 software was developed, validated, and documented in accordance with IEC 62304 and FDA Guidance "General Principles of Software Validation." Software verification activities including code reviews, design reviews, evaluations, analyses, traceability assessment, and manual testing were performed in accordance with standards and guidance documents to demonstrate device performance and functionality. All tests met the required acceptance criteria:

  • Code reviews: peer review of all modified code performed by software developers.
  • . Walkthroughs and design reviews of mock-ups and prototypes by a cross-functional team including Developers, Quality Assurance, Regulatory Affairs function, Clinical experts, Company Management, and other stakeholders.
  • Software Verification and Validation testing including automated and manual testing.
  • Regression Testing: Comprehensive end testing of the test battery to verify that the modifications ● did not affect the existing functionality.

Risk Management:

Risk Management activities were conducted in accordance on ISO 14971 assure that all risk related to use of computerized neurocognitive test, including use related risks and cybersecurity risks, are appropriately controlled. All control measures were verified and found to be effective. All individual risk is acceptable. The new device has the same safety characteristics as the Predicate Device and same risk profile.

Clinical Data:

The 510(k) included the results of clinical studies. The results of these studies demonstrate the New Device provides a reliable measure of cognitive function to aid in assessment and management of concussion and is therefore substantially equivalent to the Predicate Device.

6

To support the test administration on iPad and to provide a normative database, a prospective clinical investigation was conducted to collect data to: (i) standardize the test and construct the normative database for tests performed on iPad; and (ii) demonstrate test-retest reliability.

i. Standardization and Normative sample

The normative sample 1495 subjects ages 12-59 (670 males, 825 females) was collected prospectively from 4 different sites with study participants across the US. Data collection took place in 2022 and 2023. The sites were approved to collected data by two ethics boards, Advarra IRB Services (for supervised testing) and St. Joseph's University in Philadelphia (for unsupervised remote testing). All subjects met theappropriate inclusion criteria, which are the same as those used for creating normative tables for the mouse and trackpad in the predicate device. Data for the new sample was conducted in mixed environment including supervised and unsupervised testing to best approximate the real-world performance.

All subjects had to meet the following inclusion criteria to be eligible: (i) test administered on iPad; (ii) age: 12-59; (iii) primary English speaking or fluent in English; (iv) not suffering from a concussion or being treated for a concussion in the past 6 months; (v) no known physical, neurological, behavioral or psychological impairment that would affect their ability to perform the test; (vi) hearing or vision impairments that have been corrected outside of normal limits (e.g. prescription glasses, hearing aid), and (vii) a signed IRB approved consent form.

ii. Test-retest Reliability

Over the years, there have been a sizeable body of literature that has documented the reliability of ImPACT. In general, ImPACT has been found to be highly reliable across time. As the items of the test and the six modules have not changed, this literature is relevant to this version of ImPACT as well as all previous version (predicates). Summary of these studies is provided in the device labeling.

The test-retest reliability was also calculated in a sample of participants using the iPad version of the test. Test takers were 116 individuals ages 12-59 from the standardization sample who completed an initial baseline assessment using an iPad, and a second baseline with a between test interval ranging of 7 to 21 days (mean=12.7 days) SD=4.3 days). Test-takers were 40 males (34.5%, mean age 26.6, SD=14.2 years) and 76 females (65.5%, mean age 28.9, SD=14.4 years), with no significant age difference between based on gender (p=.40). Test-retest reliability was calculated Pearson's Product-Moment Correlation coefficients as well as intra-class correlation coefficients (ICCs) for the ImPACT Composite Scores as well as Two Factor Scores. Pearson's correlations and ICCs are consistent with those from the test-retest coefficients obtained using Mouse and Trackpad inputs of the predicate device.

Substantial Equivalence Conclusion:

The differences between the two devices described above do not affect the safety or effectiveness of ImPACT Version 4.1 for its intended use and do not raise new questions of safety and effectiveness, which was demonstrated through risk management and performance testing including software verification and validation, clinical investigations and non-clinical assessments. Therefore, ImPACT Version 4.1 is substantially equivalent to the Predicate Device.