ImPACT Quick Test

K170551 · Impact Applications, Inc. · POM · Jun 21, 2017 · Neurology

Device Facts

• Record ID: K170551
• Device Name: ImPACT Quick Test
• Applicant: Impact Applications, Inc.
• Product Code: POM · Neurology
• Decision Date: Jun 21, 2017
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 882.1471
• Device Class: Class 2
• Attributes: Software as a Medical Device

Intended Use

ImPACT Quick Test is intended for use as a computerized cognitive test aid in the assessment and management of concussion in individuals ages 12-70.

Device Story

ImPACT Quick Test (QT) is a 5-7 minute iPad-based neurocognitive test; designed for use by trained healthcare professionals (e.g., athletic trainers, physicians) to assess patients post-suspected concussion. Input consists of user touch-screen responses to three cognitive modules: Symbol Match, Three Letter Memory, and Attention Tracker. The device records objective performance metrics including working memory, processing speed, and reaction time, alongside symptom reporting. Output is presented as composite score percentiles based on normative data. The device does not provide diagnostic impairment recommendations; results are used by clinicians to determine if further evaluation or return-to-activity is appropriate. It serves as a brief assessment aid, not a substitute for comprehensive neuropsychological evaluation.

Clinical Evidence

Clinical studies included construct validity (n=118), concurrent validity (n=92), and test-retest reliability (n=76). Concurrent validity with the predicate ImPACT showed moderate-to-high correlations (r=0.32-0.63, p<0.001). Construct validity was assessed against BVMT-R, CTT, and SDMT. Test-retest reliability showed significant correlations (p<0.001) for composite scores (r=0.18-0.83). A normative database was established using 772 subjects representative of the 12-70 age population.

Technological Characteristics

Software-based neurocognitive test battery; delivered on off-the-shelf iPad hardware; user input via touch-screen. Implements three modules: Symbol Match, Three Letter Memory, and Attention Tracker. Developed per IEC 62304 and ISO 14971 standards. Connectivity is standalone software application.

Indications for Use

Indicated for use as a computerized cognitive test aid to assist in the assessment and management of concussion in individuals ages 12-70.

Regulatory Classification

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.

Special Controls

*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.

In combination with the general controls of the FD&C Act, the Computerized Cognitive Assessment Aid for Concussion is subject to the following special controls:

Predicate Devices

• ImPACT (DEN150037)

Reference Devices

• ImPACT Pediatric (DEN150037)
• Brief Visuospatial Motor Test (BVMT-R)
• Color Trails Test (CTT)
• Symbol Digit Modalities Test (SDMT)

Submission Summary (Full Text)

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Public Health Service

Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002

June 21, 2017

Impact Applications, Inc. Michael Zagorski Director of Regulatory Affairs 9665 Granite Ridge Drive. Suite 550 San Diego, California 92123

Re: K170551

Trade/Device Name: ImPACT Ouick Test Regulation Number: 21 CFR 882.1471 Regulation Name: Computerized Cognitive Assessment Aid For Concussion Regulatory Class: Class II Product Code: POM Dated: May 22, 2017 Received: May 23, 2017

Dear Mr. 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. 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 801); medical device reporting (reporting of medical device

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related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number [phone] or [phone] or at its Internet address

http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. 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

http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.

You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number [phone] or [phone] or at its Internet address

http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.

Sincerely,

# Michaelリ. Hoffmann -S

for

Carlos L. Peña, PhD, MS Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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## Indications for Use

510(k) Number (if known) K170551

Device Name ImPACT Quick Test

Indications for Use (Describe)

ImPACT Quick Test is intended for use as a computerized cognitive test aid in the assessment and management of concussion in individuals ages 12-70.

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

X Prescription Use (Part 21 CFR 801 Subpart D)

| Over-The-Counter Use (21 CFR 801 Subpart C)

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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 inside the head. The brain is colored in a light blue color. To the right of the head is the text "ImPACT" in a combination of dark blue and light blue colors. Below the word "ImPACT" is the text "APPLICATIONS, INC."

#### Section 5 - 510(k) Summary

Submission Date: May 22, 2017

#### Submitter Information:

| Company: | ImPACT Applications, Inc.<br>9665 Granite Ridge Drive, Suite 150<br>San Diego, CA 92123 |
|-------------------------|-----------------------------------------------------------------------------------------|
| Official Correspondent: | Michael Zagorski<br>Director of Regulatory Affairs |

Device Information:

| Trade Name: | ImPACT Quick Test™™ |
|------------------------|------------------------------------------------------|
| Classification Name: | Computerized Cognitive Assessment Aid for Concussion |
| Device Class: | II |
| Device Classification: | 21 CFR 882.1471, Product Code POM |
| Review Panel | Neurology |

ImPACT (DEN150037)

ImPACT Applications, Inc. Tel: [phone] x.939

Email: [e-mail]

#### Predicate Device:

#### Indications for Use:

lmPACT 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

#### Device Description:

lmPACT Quick Test (ImPACT) QT is a brief computerized neurocognitive test designed to assist trained healthcare professionals in determining a patient's status after a suspected concussion. ImPACT QT provides basic data related to neurocognitive functioning, including working memory, processing speed, reaction time, and symptom recording.

lmPACT QT is designed to be a brief 5-7 minute iPad-based test to aid sideline personnel and first responders in determining if an athlete/individual is in need of further evaluation or is able to immediately return to activity. ImPACT QT is not a substitute for a full neuropsychological evaluation or a more comprehensive computerized neurocognitive test (such as ImPACT).

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Image /page/4/Picture/2 description: The image is a logo for ImPACT Applications, Inc. The logo features a stylized image of a human head in profile, with the brain outlined in blue. To the right of the head is the word "ImPACT" in blue, with the "I" in a darker shade of blue than the rest of the word. Below "ImPACT" is the phrase "APPLICATIONS, INC." in a smaller, darker blue font.

#### Comparison to Predicate Device:

lmPACT QT is substantially equivalent to ImPACT, manufactured by ImPACT Applications, Inc., and cleared under DEN150037. ImPACT QT and Predicate Device ImPACT share the same intended use as Computerized Cognitive Assessment Aid for Concussion. Both devices enable administration of neuropsychological test taker's cognitive state. They are also similar in terms of technological characteristics as both administer neurocognitive test modules on a standard off-the-shelf computing device and record objective cognitive performance measurements as the test taker responds to stimuli presented on the screen.

lmPACT QT differs from Predicate Device in the content and design of the cognitive tasks, and the test reported for analysis, including different normative data set.

| Table 1 - Substantial Equivalence Comparison | | | |
|----------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Characteristic | New Device: ImPACT Quick<br>Test | Predicate Device: ImPACT<br>(DEN150037) | Reference Device: ImPACT<br>Pediatric (DEN150037) |
| Indications of Use | Similar to the Predicate and<br>the Reference Device.<br>ImPACT QT is intended for<br>use as a computerized<br>cognitive test to aid in the<br>assessment and management<br>of concussion in individuals<br>ages 12-70. | ImPACT is intended for use as<br>a computer-based<br>neurocognitive test battery<br>to aid in the assessment and<br>management of concussion.<br>ImPACT is a neurocognitive<br>test battery that provides<br>healthcare professionals with<br>objective measure of<br>neurocognitive functioning as<br>an assessment aid and in the<br>management of concussion<br>in individuals ages 12-59. | ImPACT is intended for use as<br>a computer-based<br>neurocognitive test battery<br>to aid in the assessment and<br>management of concussion.<br>ImPACT is a neurocognitive<br>test battery that provides<br>healthcare professionals with<br>objective measure of<br>neurocognitive functioning as<br>an assessment aid and in the<br>management of concussion<br>in individuals ages 5-11. |
| Patient<br>Population | Similar to the Predicate<br>ImPACT QT age range is 12-70 | 12-59 | 5-11 |
| Technology | Similar to Predicate, and the<br>same as Reference Device. | Stand-alone software application<br>delivered on desktop/laptop<br>computers | Stand-alone software application<br>delivered on iPad |
| Neurocognitive<br>tasks<br>administered | Similar to Predicate and<br>Reference Devices<br>ImPACT QT includes:<br>Demographic data, (age,<br>gender);Symptoms list;Neurocognitive test battery<br>consisting of 3 modules:Module 1: Symbol MatchModule 2: Three letter<br>memoryModule 3: Attention<br>TrackerModules 1 and 2 are identical to<br>Modules 3 and 4 of the Predicate<br>Device. | 1. Demographic data, (age,<br>gender, concussion history);<br>2. Symptoms list;<br>3. Neurocognitive test battery<br>consisting of 6 modules:<br>Module 1: Word Memory<br>and Delayed Memory<br>RecognitionModule 2: Design Memory<br>and Delayed Design<br>RecognitionModule 3: X's and O'sModule 4: Symbol<br>MatchingModule 5: Color MatchModule 6: Three Letter<br>Memory | 1. Demographic data, (age,<br>gender, concussion history);<br>2. Symptoms list;<br>3. Neurocognitive test battery<br>consisting of 6 modules:<br>Module 1: Word Memory<br>and Delayed Memory<br>RecognitionModule 2: Design Memory<br>and Delayed Design<br>RecognitionModule 3: Stop and GoModule 4: Memory TouchModule 5: Picture MatchModule 6: Color Match |

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| Image: IMPACT APPLICATIONS, INC. | | ImPACT Quick Test - Traditional 510(k) | Section 5 - 510(k) Summary |
|----------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Reporting | Similar to Predicate and<br>Reference Devices.<br>The new device reports<br>symptoms and displays test<br>results in a form of composites<br>score percentiles based on<br>normative data. | • Symptom scores<br>• Raw Scores (subscales)<br>• Composite scores with<br>percentiles based on<br>normative data.<br>• Reliable Change Index. | • Symptom scores<br>• Raw Scores<br>• Factor Scores with<br>percentiles based on<br>normative data. |
| Results<br>Interpretation | Same as Predicate and<br>Reference Devices. | ImPACT does not provide a<br>recommendation that the<br>patient is impaired vs.<br>unimpaired.<br>Clinical interpretation of the<br>results includes comparison with<br>the normative database. | ImPACT Pediatric does not<br>provide a recommendation that<br>the patient is impaired vs.<br>unimpaired.<br>Clinical interpretation of the<br>results includes comparison with<br>the normative database. |
| Stimulus<br>presentation | Same as Predicate Device | Computer screen | Tablet (mobile device) screen |
| Test taker<br>response capture | Same as Reference Device | Computer mouse or keyboard | User input (finger touch) via<br>tablet touch-screen |
| Psychometric<br>properties | Same as Predicate and<br>Reference Devices | Demonstrates construct validity<br>with traditional<br>neuropsychological tests and<br>test-retest reliability. | Demonstrates construct validity<br>with traditional<br>neuropsychological tests and<br>test-retest reliability. |
| Standards used | ISO 14971<br>IEC 62304 | ISO 14971<br>IEC 62304 | ISO 14971<br>IEC 62304 |

## Summary of Non-Clinical Testing:

lmPACT QT 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 software testing were executed to demonstrate device performance and functionality. All activities were completed successfully and met the required acceptance criteria.

Risk Management activities, conducted in accordance on ISO 14971, assure that all risks related to use of a computerized neurocognitive test, including use related risks and cybersecurity risks, are appropriately mitigated.

## Summary of Clinical Testing:

The 510(k) included the results of clinical studies that examined the construct and concurrent validity of ImPACT QT as a clinical tool by documenting correlations with ImPACT and traditional neuropsychological tests. Clinical data was also collected to examine test-retest reliability and to construct a normative database.

#### Normative Database:

To develop a normative data set, 772 subjects were recruited by utilizing 11 sites across the United States. All subjects completed an IRB approved consent form and met eligibility criteria before testing. The standardization sample was developed to be representative of the population of individuals ages 12-70 years, based upon the 2010 U.S. Census, approximating the targets for age, gender and race.

All subjects completed an IRB approved consent form and met eligibility criteria before testing. All testing was completed by professionals who were specifically trained to administer the test. These professionals consisted of neuropsychologists, physicians, psychology/psychology/psychology graduate students, certified athletic trainers and athletic training graduate students. All testing was completed in a supervised setting.

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Image /page/6/Picture/2 description: The image is a logo for ImPACT Applications, Inc. The logo features a stylized head with a brain inside, followed by the word "ImPACT" in blue letters. Below the word "ImPACT" is the phrase "APPLICATIONS, INC." in smaller, blue letters. The logo is clean and professional, and it is likely used to represent a company that specializes in brain-related applications.

## Concurrent Validity

A study was completed comparing ImPACT Quick Test to ImPACT, the test from which it was derived. This study compared 92 subjects who were given both ImPACT Quick Test. Tests were administered in counterbalanced order across subjects by trained examiners. The sample consisted of 41 (45%) males and 51 (55%) females with an average age of 36.5 years (S.D. = 19.8 years, range = 12-76 years).

The correlations between the two instruments tend to be in the moderate to high range, 0.32-0.63. This suggests that although the two instruments measure similar constructs, the fact that ImPACT Quick Test contains a subset of ImPACT tests as well as unique content explains the moderate relationship between the two instruments.

| Table 2. Concurrent Validity Between ImPACT and ImPACT Quick Test. | |
|--------------------------------------------------------------------|-----|
| Visual Motor Speed | |
| Three Letters Counting Average Correct | .63 |
| Reaction Time | |
| Three Letters Average Time First Click | .47 |
| Attention Tracker Rectangular Average Time Correct | .44 |
| Attention Tracker Figure Eight Average Time Correct | .40 |
| Attention Tracker Complex Average Time Correct | .43 |
| Symbol Match Correct Visible Average Answer Time | .61 |
| Symbol Match Correct Hidden Average Answer Time | .36 |
| Symbol Match Incorrect Hidden Average Answer Time | .32 |
| All correlations p<.001 | |

The results of these studies demonstrate that ImPACT QT provides a reliable measure of cognitive function to aid in assessment of concussion, and is therefore substantially equivalent to the Predicate Device.

## Construct Validity

A study was completed comparing ImPACT Quick Test to the Brief Visuospatial Motor Test (BVMT-R) (Benedict, 1997), a measure of visual-spatial memory, the Color Trails Test (CTT) (D'Elia et al., 1998), a measure of attention and sequencing, and the Symbol Digit Modalities Test (SDMT) (Smith, 1973), a measure of attention, visual scanning and motor speed).

The study compared the results of 118 subjects; the tests were administered in counterbalanced order across subjects by trained examiners. The sample consisted of 73 (62%) females and 45 (38%) males with an average age of 32.5 years (S.D. = 16.7 years, range = 18-79 years).

The results suggest that Attention Tracker and Motor Speed correlate more highly with the BVMT-R, and CTT, than does the Memory Scale. These results are consistent with what one would expect as the BVMT-R, and CTT, provide measures of attention and motor speed. Although the correlation between the Memory Scale and the BVMT-R, was lower than expected, the fact that the format and task demands are significantly different can explain the lower than expected correlations.

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Image /page/7/Picture/0 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 a blue gradient, and the text "APPLICATIONS, INC." in a smaller font below. The logo is clean and professional, and it conveys a sense of intelligence and innovation.

| Table 3 - Construct validity: correlation of ImPACT Quick Test and neuropsychological test measures | | | | | | | | |
|-----------------------------------------------------------------------------------------------------|------|-------|-----------------------------|-----|-------|-----------------------------|-----|-------|
| Attention Tracker | r | Sig r | Motor Speed | r | Sig r | Memory | r | Sig r |
| BVMT-R Trial 1 | .29 | .07 | BVMT-R Trial 1 | .32 | .001 | BVMT-R Trial 1 | .10 | .30 |
| BVMT-R Trial 2 | .05 | .58 | BVMT-R Trial 2 | .18 | .05 | BVMT-R Trial 2 | .14 | .14 |
| BVMT-R Trial 3 | -.01 | .93 | BVMT-R Trial 3 | .17 | .06 | BVMT-R Trial 3 | .13 | .16 |
| BVMT-R Total Score | .10 | .27 | BVMT-R Total Score | .30 | .001 | BVMT-R Total Score | .13 | .16 |
| Color Trails-R Trial 1 Time | .37 | .001 | Color Trails-R Trial 1 Time | .50 | .001 | Color Trails-R Trial 1 Time | .03 | .75 |
| Color Trails-R Trial 2 Time | .28 | .003 | Color Trails-R Trial 2 Time | .61 | .001 | Color Trails-R Trial 2 Time | .16 | .09 |
| Color Trails-S Trial 1 Time | -.35 | .05 | Color Trails-S Trial 1 Time | .36 | .04 | Color Trails-S Trial 1 Time | .12 | .53 |
| SDMT Correct | .19 | .29 | SDMT Correct | .20 | .28 | SDMT Correct | .04 | .85 |
| Legend: r=Pearson's correlation coefficient; Sig r=significance r | | | | | | | | |

### Test-Retest Reliability

A sample of 76 individuals were tested twice for this study. During their initial visit, informed consent was obtained from each participant after which they were given ImPACT Quick Test and asked to return to take the test 1-4 weeks in the future. None of the test subjects had a history of concussion within one year of participating in the study and none had concussion symptoms during their participation. No subject was included in the study if he or she had a history of epilepsy or other neurological disorders or were taking psychoactive medication at the time of the study. All testing was completed under the direction of a trained test administrator. Pearson's Correlations for the Composite scores presented in the table were calculated to examine test-retest reliability for the subtests across the first two test sessions. All test-retest correlations (r) were significant at the p<.001 level or beyond, with the composite score correlations 0.18 for Memory, 0.73 for Attention Tracker, and 0.82 for Motor Speed. With the large majority of the correlations in the .6 to .8 range and the RCI scores total percent change at the various levels, this reflects considerable stability across the re-test period.

| Table 4 – Test-retest reliability results for ImPACT Quick Test Composite Scores | | | | | | | |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------|-----|------------------------|--------------|-------------|---------------------------|--------|--------|
| Composite Scores | r | aReliable Change (RCI) | | | bRCI Total Percent Change | | |
| | | 80% CI | 90% CI | 95% CI | 80% CI | 90% CI | 95% CI |
| Attention Tracker | .73 | △.56/14%/3% | △.72/8%/1% | △.86/5%/1% | 17% | 9% | 6% |
| Motor Speed | .83 | △4.08/14%/5% | △5.22/12%/4% | △6.24/8%/3% | 19% | 16% | 11% |
| Memory | .18 | △3/15%/12% | △4/9%/5% | △5/1%/1% | 28% | 14% | 2% |
| aReliable Change (RCI) reflects the delta (△) required for "reliable" change, and the percentage of cases declining and improving beyond that delta. | | | | | | | |
| bReliable Change Total Percent Change reflects the total percentage of cases falling outside the confidence interval, summing both improvement and decline. | | | | | | | |

## Conclusion:

ImPACT QT falls within the generic type of device regulated under 21 CFR 882.1471, Computerized Cognitive Assessment Aid for Concussion, Product Code POM. The differences between the two devices described above do not affect either the safety or effectiveness of ImPACT QT for its intended use and do not raise new questions of safety and effectiveness; therefore, ImPACT QT is substantially equivalent to the Predicate Device ImPACT.