CLEARVIEW EXACT II INFLUENZA A & B TEST

K103610 · Alere Scarborough, Inc D/B/A Binax, Inc. · PSZ · Jan 6, 2011 · Microbiology

Device Facts

• Record ID: K103610
• Device Name: CLEARVIEW EXACT II INFLUENZA A & B TEST
• Applicant: Alere Scarborough, Inc D/B/A Binax, Inc.
• Product Code: PSZ · Microbiology
• Decision Date: Jan 6, 2011
• Decision: SESE
• Submission Type: Special
• Regulation: 21 CFR 866.3328
• Device Class: Class 2
• Attributes: Pediatric

Intended Use

The Clearview® Exact II Influenza A & B Test is an in vitro immunochromatographic assay for the qualitative detection of influenza A and B nucleoprotein antigens in nasal swab specimens collected from symptomatic patients. It is intended to aid in the rapid differential diagnosis of influenza A and B viral infections. It is recommended that negative test results be confirmed by cell culture. Negative results do not preclude influenza virus infection and should not be used as the sole basis for treatment or other management decisions.

Device Story

Immunochromatographic membrane assay; detects influenza A and B nucleoprotein antigens in nasal swab specimens. Input: nasal swab sample added to extraction reagent in coated reaction tube. Process: lateral flow technology using immobilized monoclonal antibodies on test strip membrane; 10-minute incubation. Output: visual interpretation of pink-to-purple sample lines; blue control line indicates valid test. Used in clinical settings; operated by healthcare professionals. Provides rapid differential diagnosis; aids clinical decision-making; negative results require confirmatory cell culture.

Clinical Evidence

Prospective multi-center study (7 U.S. sites, 2008-2009 season) of 478 nasal swab specimens from children and adults. Compared to viral culture. Influenza A sensitivity: 94% (95% CI: 83-98%), specificity: 96% (95% CI: 93-97%). Influenza B sensitivity: 77% (95% CI: 67-85%), specificity: 98% (95% CI: 96-99%). Invalid rate < 2%.

Technological Characteristics

Lateral flow immunochromatographic assay. Employs monoclonal antibodies immobilized on membrane support. Dimensions/form factor: test strip in coated reaction tube. No electronic components, software, or external energy source. Manual visual interpretation.

Indications for Use

Indicated for qualitative detection of influenza A and B nucleoprotein antigens in nasal swab specimens from symptomatic patients of all ages. Not for use as sole basis for treatment decisions; negative results require confirmation by cell culture.

Regulatory Classification

Identification

An influenza virus antigen detection test system is a device intended for the qualitative detection of influenza viral antigens directly from clinical specimens in patients with signs and symptoms of respiratory infection. The test aids in the diagnosis of influenza infection and provides epidemiological information on influenza. Due to the propensity of the virus to mutate, new strains emerge over time which may potentially affect the performance of these devices. Because influenza is highly contagious and may lead to an acute respiratory tract infection causing severe illness and even death, the accuracy of these devices has serious public health implications.

Special Controls

*Classification.* Class II (special controls). The special controls for this device are:(1) The device's sensitivity and specificity performance characteristics or positive percent agreement and negative percent agreement, for each specimen type claimed in the intended use of the device, must meet one of the following two minimum clinical performance criteria: (i) For devices evaluated as compared to an FDA-cleared nucleic acid based-test or other currently appropriate and FDA accepted comparator method other than correctly performed viral culture method: (A) The positive percent agreement estimate for the device when testing for influenza A and influenza B must be at the point estimate of at least 80 percent with a lower bound of the 95 percent confidence interval that is greater than or equal to 70 percent. (B) The negative percent agreement estimate for the device when testing for influenza A and influenza B must be at the point estimate of at least 95 percent with a lower bound of the 95 percent confidence interval that is greater than or equal to 90 percent. (ii) For devices evaluated as compared to correctly performed viral culture method as the comparator method: (A) The sensitivity estimate for the device when testing for influenza A must be at the point estimate of at least 90 percent with a lower bound of the 95 percent confidence interval that is greater than or equal to 80 percent. The sensitivity estimate for the device when testing for influenza B must be at the point estimate of at least 80 percent with a lower bound of the 95 percent confidence interval that is greater than or equal to 70 percent. (B) The specificity estimate for the device when testing for influenza A and influenza B must be at the point estimate of at least 95 percent with a lower bound of the 95 percent confidence interval that is greater than or equal to 90 percent. (2) When performing testing to demonstrate the device meets the requirements in paragraph (b)(1) of this section, a currently appropriate and FDA accepted comparator method must be used to establish assay performance in clinical studies. (3) Annual analytical reactivity testing of the device must be performed with contemporary influenza strains. This annual analytical reactivity testing must meet the following criteria: (i) The appropriate strains to be tested will be identified by FDA in consultation with the Centers for Disease Control and Prevention (CDC) and sourced from CDC or an FDA-designated source. If the annual strains are not available from CDC, FDA will identify an alternative source for obtaining the requisite strains. (ii) The testing must be conducted according to a standardized protocol considered and determined by FDA to be acceptable and appropriate. (iii) By July 31 of each calendar year, the results of the last 3 years of annual analytical reactivity testing must be included as part of the device's labeling. If a device has not been on the market long enough for 3 years of annual analytical reactivity testing to have been conducted since the device received marketing authorization from FDA, then the results of every annual analytical reactivity testing since the device received marketing authorization from FDA must be included. The results must be presented as part of the device's labeling in a tabular format, which includes the detailed information for each virus tested as described in the certificate of authentication, either by: (A) Placing the results directly in the device's § 809.10(b) of this chapter compliant labeling that physically accompanies the device in a separate section of the labeling where the analytical reactivity testing data can be found; or (B) In the device's label or in other labeling that physically accompanies the device, prominently providing a hyperlink to the manufacturer's public Web site where the analytical reactivity testing data can be found. The manufacturer's home page, as well as the primary part of the manufacturer's Web site that discusses the device, must provide a prominently placed hyperlink to the Web page containing this information and must allow unrestricted viewing access. (4) If one of the actions listed at section 564(b)(1)(A)-(D) of the Federal Food, Drug, and Cosmetic Act occurs with respect to an influenza viral strain, or if the Secretary of Health and Human Services (HHS) determines, under section 319(a) of the Public Health Service Act, that a disease or disorder presents a public health emergency, or that a public health emergency otherwise exists, with respect to an influenza viral strain: (i) Within 30 days from the date that FDA notifies manufacturers that characterized viral samples are available for test evaluation, the manufacturer must have testing performed on the device with those viral samples in accordance with a standardized protocol considered and determined by FDA to be acceptable and appropriate. The procedure and location of testing may depend on the nature of the emerging virus. (ii) Within 60 days from the date that FDA notifies manufacturers that characterized viral samples are available for test evaluation and continuing until 3 years from that date, the results of the influenza emergency analytical reactivity testing, including the detailed information for the virus tested as described in the certificate of authentication, must be included as part of the device's labeling in a tabular format, either by: (A) Placing the results directly in the device's § 809.10(b) of this chapter compliant labeling that physically accompanies the device in a separate section of the labeling where analytical reactivity testing data can be found, but separate from the annual analytical reactivity testing results; or (B) In a section of the device's label or in other labeling that physically accompanies the device, prominently providing a hyperlink to the manufacturer's public Web site where the analytical reactivity testing data can be found. The manufacturer's home page, as well as the primary part of the manufacturer's Web site that discusses the device, must provide a prominently placed hyperlink to the Web page containing this information and must allow unrestricted viewing access.

Predicate Devices

• Clearview® Exact II Influenza A & B Test (K092349)

Submission Summary (Full Text)

{0}------------------------------------------------

K103610

510(k) SUMMARY

JAN 6 2011

# 510(k) SUMMARY

This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR 807.92.

The assigned 510(k) number is:

The purpose of this Special 510(k) submission is to modify the Clinical Performance claims of the current 510(k) cleared Clearview® Exact II Influenza A & B Test (K092349).

#### SUBMITTER

Alere Scarborough, Inc., d/b/a Binax, Inc. 10 Southgate Road Scarborough, Maine 04074 [phone] (Office) [phone] (Fax) Establishment Registration Number: 1221359

#### CONTACT PERSON

Anne Jepson anne [e-mail] (email)

ALTERNATE CONTACT PERSON Angela Drysdale [e-mail] (email)

### DATE PREPARED

(

December 8, 2010

#### TRADE NAME

Clearview® Exact II Influenza A & B Test

COMMON NAME

Not applicable

### CLASSIFICATION NAME

Antigen, Cf (including Cf Control), Influenza Virus A, B, C (per 21 CFR 866,3330)

### PREDICATE DEVICE

Clearview® Exact II Influenza A & B Test, K092349

#### DEVICE DESCRIPTION

The Clearview Exact II Influenza A & B Test is an immunochromatographic membrane assay that uses highly sensitive monoclonal antibodies to detect influenza type A and B nucleoprotein antigens in respiratory swab specimens. These antibodies and a control protein are immobilized onto a membrane support as three distinct lines and are combined with other reagents/pads to construct a Test Strip.

{1}------------------------------------------------

Nasal swab samples are added to a Coated Reaction Tube to which an extraction reagent has been added. A Clearview Exact II Influenza A & B Test Strip is then placed in the Coated Reaction Tube holding the extracted liquid sample. Test results are interpreted at 10 minutes based on the presence or absence of pink-to-purcle colored Sample Lines. The yellow Control Line turns blue in a valid test.

## INTENDED USE

The Clearview Exact II Influenza A & B Test is an in vitro immunochromatographic assay for the qualitative detection of influenza A and B nucleoprotein antigens in nasal swab specimens collected from symptomatic patients. It is intended to aid in the rapid differential diagnosis of influenza A and B viral infections. It is recommended that negative test results be confirmed by cell culture. Negative results do not preclude influenza virus infection and should not be used as the sole basis for treatment or other management decisions.

## TECHNOLOGICAL CHARACTERISTICS

The Clearview® Exact II Influenza A & B Test, under consideration in this special 510(k) filing, is exactly the same test as the currently 510(k) cleared Clearview® Exact II Influenza A & B Test. Both use lateral flow immunochromatographic technology. Both tests are rapid immunoassays that employ specific antibodies immobilized onto solid phases to capture and visualize influenza nucleoprotein antigens.

## PERFORMANCE SUMMARY

## CLINICAL STUDY

## Clearview® Exact II Influenza A & B Test Performance vs. Viral Culture - Prospective Study

The clinical performance of the Clearview® Exact II Influenza A & B Test was established in a multi-center. prospective, clinical study conducted at seven U.S. trial sites during the 2008-2009 respiratory season.

A total of 478 prospective specimens, collected from children (less than 18 years of age) and adults (18 years or older), were evaluated in the Clearview® Exact II Influenza A & B Test and compared to viral culture, Evaluated specimens were nasal swabs collected from patients presenting with influenza-like symptoms. Forty-four percent (44%) of the population tested was < 5 years of age, 31% was 5 - < 18 years of age, and 25% was ≥ 18 years. A/H3 and A/H1 were the predominant influenza A subtypes observed during this time.

Clearview® Exact II Influenza A & B Test performance versus viral culture, including 95% confidence intervals, is detailed below.

## Clearview® Exact II Influenza A & B Test Performance vs. Culture

| | Influenza Type A | | | | Influenza Type B | | |
|-------------------------------------------|------------------|-----------|-----|-------------------------------------------|------------------|-----------|-----|
| | Culture + | Culture - | | | Culture + | Culture - | |
| Clearview + | 45 | 18 | 63 | Clearview + | 65 | 8 | 73 |
| Clearview - | 3 | 412 | 415 | Clearview - | 19* | 386 | 405 |
| | 48 | 430 | 478 | | 84 | 394 | 478 |
| Sensitivity: 45/48 = 94% (95% CI: 83-98%) | | | | Sensitivity: 65/84 = 77% (95% CI: 67-85%) | | | |

Specificity: 412/430 = 96% (95% CI: 93-97%)

Specificity: 386/394 = 98% (95% CI: 96-99%)

* The nineteen samples that tested positive on culture for influenza B, but were negative on the Clearview Exact II Test, were also tested on an investigational RT-PCR assay. Ten (10) of these samples were negative for influenza B by PCR.

Less than 2% (9/487) of the total number of specimens tested generated invalid results.

Clearview® Exact II Influenza A & B Test (K092349) Special 510(k) Notification

{2}------------------------------------------------

#### ANALYTICAL STUDIES

### ANALYTICAL SENSITIVITY

The Clearview Exact II Test limit of detection (LOD or Cos), defined as the concentration of influenza virus that produces positive Clearview® Exact II Test results approximately 95% of the time, was identified by evaluating different concentrations of 2 subtypes of live influenza A and 2 subtypes of live influenza B in the Clearview Exact II Test. Multiple operators tested each concentration of the four influenza subtypes multiple times. The ي concentrations identified as the LOD (Cوs) levels for each subtype tested are listed below.

| Influenza Subtype | Concentration<br>(TCID50/ml) | # Detected per<br>Total Tests | % Detected |
|--------------------------------|------------------------------|-------------------------------|------------|
| Influenza A/HongKong/8/68 | $2.37 x 10^4$ | 64/66 | 97% |
| Influenza A/PuertoRico/8/34 | $3.16 x 10^5$ | 37/42 | 88% |
| Influenza B/Malaysia/2506/2004 | $3.00 x 10^6$ | 19/20 | 95% |
| Influenza B/Lee/40 | $4.20 x 10^5$ | 19/20 | 95% |

#### ANALYTICAL REACTIVITY TESTING

The influenza A and B strains listed tested positive in the Clearview® Exact II Influenza A & B Test at the concentrations specified. Although the specific influenza strains causing infection in humans can vary year to year, all contain the conserved nucleoproteins targeted by the Clearview® Exact II test.1 Performance characteristics of the Clearview® Exact II Influenza A & B Test for detecting influenza A virus from human specimens was established when H1 and H3 subtypes were prevalent. Performance characteristics of the test when other influenza A virus subtypes are emerging as human pathogens have not been established.

| Influenza Strain | Concentration |
|-------------------------------------|---------------------|
| Flu A/Port Chalmers/1/73 (H3N2) | 5.6 x 105 TCID50/ml |
| Flu A/WS/33 (H1N1) | 5.0 x 104 TCID50/ml |
| Flu A/Aichi/2/68 (H3N2) | 3.0 x 104 TCID50/ml |
| Flu A/Malaya/302/54 (H1N1) | 6.0 x 105 TCID50/ml |
| Flu A/New Jersey/8/76 (H1N1) | 2.8 x 105 TCID50/ml |
| Flu A/Denver/1/57 (H1N1) | 8.9 x 103 TCID50/ml |
| Flu A/Victoria/3/75 (H3N2) | 1.8 x 104 TCID50/ml |
| Flu A/Solomon Islands/3/2006 (H1N1) | 1.5 x 105 TCID50/ml |
| Flu A/Brisbane/10/07 (H3N2) | 2.5 x 106 EIU50/ml |
| Flu A/Puerto Rico/8/34 (H1N1) | 5.6 x 105 TCID50/ml |
| Flu A/Wisconsin/67/2005 (H3N2) | 1.3 x 105 TCID50/ml |
| Flu A/Hong Kong/8/68 (H3N2) | 7.9 x 103 TCID50/ml |
| Flu A/California/04/2009 (H1N1) | 1.4 x 105 TCID50/ml |
| Flu B/Florida/02/2006 | 1.4 x 104 TCID50/ml |
| Flu B/Florida/04/2006 | 7.1 x 104 TCID50/ml |
| Flu B/Florida/07/04 | 8.5 x 104 TCID50/ml |
| Flu B/Malaysia/2506/04 | 1.5 x 106 TCID50/ml |
| Flu B/Panama/45/90 | 1.7 x 104 TCID50/ml |
| Flu B/R75 | 5.0 x 105 TCID50/ml |
| Flu B/Russia/69 | 2.2 x 106 TCID50/ml |
| Flu B/Taiwan/2/62 | 1.0 x 105 TCID50/ml |
| Flu B/Mass/3/66 | 1.5 x 105 TCID50/ml |
| Flu B/Lee/40 | 1.8 x 105 TCID50/ml |

Clearview® Exact II Influenza A & B Test (K092349) Special 510(k) Notification

{3}------------------------------------------------

Although this test has been shown to detect the Flu A/California/04/2009 (H1N1) virus cultured from a positive human specimen, the performance characteristics of this device with human specimens infected with the 2009 H1N1 influenza virus have not been established. The Clearview® Exact II Influenza A & B test can distinguish hetween influenza A and B viruses, but it does not differentiate seasonal influenza A virus from the novel influenza A (2009 H1N1) virus, and the test's ability to detect human infection with the novel influenza A 2009 H1N1 virus in clinical specimens is unknown.

#### ANALYTICAL SPECIFICITY (CROSS-REACTIVITY)

To determine the analytical specificity of the Clearview® Exact II Influenza A & B Test, 54 commensal and pathogenic microorganisms (38 bacteria, 15 viruses and 1 yeast) that may be present in the onasal cavity or nasopharynx were tested. All of the following microorganisms were negative when tested at nonarentialisms ranging from 10° to 10° cells/ml, CFU/ml or IFU/ml (bacteria), 105 to 10° TCIDsJml, CEIDsoml or copies/ml (viruses), and 10° cells/ml (yeast).

#### Bacteria Viruses Acinetobacter calcoaceticus Adenovirus type 1 Bacteroides fragilis Adenovirus type 7 Bordetella pertussis Coronavirus OC43 Chlamydia pneumoniae Coronavirus 229E Corynebacterium diphtheria Coxsackievirus B4 Enterococcus faecalis Cytomegalovirus (CMV) (Herpes V) Escherichia coli Epstein Barr Virus Gardnerella vaginalis Human metapneumovirus Haemophilus influenzae Measles (Edmonston) Klebsiella pneumoniae Mumps (Enders) Lactobacillus casei Parainfluenza 1 Lactobacillus plantarum Parainfluenza 2 Legionella pneumophila Parainfluenza 3 Listeria monocytogenes Respiratory Syncytial Virus type B Moraxella catarrhalis Rhinovirus type 1A Mycobacterium avium Mycobacterium intracellulare Mycobacterium tuberculosis Mvcoplasma pneumoniae Neisseria gonorrhoeae Neisseria meninqitidis Neisseria sicca Neisseria subflava Proteus vulgaris Pseudomonas aeruginosa Serratia marcescens Staphylococcus aureus Staphylococcus aureus (Cowan protein A producing strain) Staphylococcus epidermidis Streptococcus, Group A Streptococcus, Group B Streptococcus, Group C Streptococcus, Group F Streptococcus, Group G Streptococcus mutans Streptococcus pneumoniae

Clearview® Exact II Influenza A & B Test (K092349) Special 510(k) Notification

Yeast Candida albicans

{4}------------------------------------------------

Streptococcus salivaris Streptococcus sanguis

.1

#### 'NTERFERING SUBSTANCES

The following substances, naturally present in respiratory specimens or that may be artificially introduced into the nasal cavity or nasopharynx, were evaluated in the Clearview® Exact II influenza A & B Test at the concentrations listed below and were found not to affect test performance. Whole blood (1%) did not interfere with the interpretation of negative Clearview® Exact II Test results, but did interfere with the interpretation of influenza A LOD (Ggs) positive samples. Therefore, visibly bloody samples may not be appropriate for use in this test.

| Substance | Concentration |
|-------------------------|---------------|
| 3 OTC nasal sprays | 10% |
| 3 OTC mouthwashes | 10% |
| 3 OTC throat drops | 10% |
| 4-acetamidophenol | 10 mg/ml |
| Acetylsalicylic acid | 20 mg/ml |
| Albuterol | 20 mg/ml |
| Chlorpheniramine | 5 mg/ml |
| Dexamethasone | 5 mg/ml |
| Dextromethorphan | 10 mg/ml |
| Diphenhydramine | 5 mg/ml |
| Doxylamine succinate | 1 mg/ml |
| Flunisolide | 3 mg/ml |
| Guaiacol glycerol ether | 20 mg/ml |
| Mucin | 1% |
| Mupirocin | 250 µg/ml |
| Oxymetazoline | 10 mg/ml |
| Phenylephrine | 10 mg/ml |
| Phenylpropanolamine | 20 mg/ml |
| Rebetol® (Ribavirin) | 500 ng/ml |
| Relenza® (Zanamivir) | 20 mg/ml |
| Rimantadine | 500 ng/ml |
| Tamiflu® (Oseltamivir) | 100 mg/ml |
| Tobramycin | 40 mg/ml |
| Triamcinolone | 14 mg/ml |

#### REPRODUCIBILITY

A reproducibility study of the Clearview® Exact II Influenza A & B Test was conducted by operators from 3 sites using panels of blind coded specimens containing negative (below the limit of detection), low positive (at the limit of detection), and moderate positive (above the limit of detection) influenza A and B viral samples. Participants tested each sample multiple times on 5 different days. The detection rates for the influenza A moderate positive, low positive and high negative samples were 99.2% (119/120), 94.2 % (113/120) and 9.2% (11/120), respectfully. The detection rates for the influenza B moderate positive, low positive, and high negative samples were 99.2% (116/120) and 7.5 % (9/120), respectfully. All of the negative samples (118) generated negative test results.

{5}------------------------------------------------

Signed Angela Drysdale Date 12/8/10

Director, Clinical Affairs എല്ലം Scarborough, Inc., d/b/a Binax, Inc.

1) Dowdle, W.R., Kendal, A.P., and Noble, G.R. 1980. Influenza Virus, p 836-884. Manual of Clinical Microbiology, 3rd edition, In Lennette, et. Al (ed.). American Society for Microbiology, Washington, D.C

{6}------------------------------------------------

### DEPARTMENT OF HEALTH & HUMAN SERVICES

Image /page/6/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is a stylized symbol that resembles three human profiles facing to the right, stacked on top of each other.

#### Public Health Service

Food and Drug Administration 10903 New Hampshire Avenue Silver Spring, MD 20993

Alere Scarborough, Inc., d/b/a Binax, Inc. c/o Anne Jepson Manager, Clinical Affairs 10 Southgate Road Scarborough, ME 04074

€ 2011 JAN

Re: K103610

Trade/Device Name: Clearview Exact II Influenza A&B Test Regulation Number: 21 CFR 866.3330 Regulation Name: Influenza Virus Serological Reagents Regulatory Class: Class I Product Code: GNX Dated: December 8, 2010 Received: December 9, 2010

Dear Ms. Jepson:

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.

If your device is classified (see above) into class II (Special Controls), it may be subject to such additional controls. Existing major regulations affecting your device can be found in Title 21, Code of Federal Regulations (CFR), Parts 800 to 895. 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 Parts 801 and 809); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); and good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820). This letter will allow you to begin marketing your device as described in your Section 510(k) premarket

{7}------------------------------------------------

Page 2 - Anne Jepson

notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.

If you desire specific advice for your device on our labeling regulation (21 CFR Parts 801 and 809), please contact the Office of In Vitro Diagnostic Device Evaluation and Safety at [phone]. 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 Small Manufacturers, International and Consumer Assistance at its toll-free number [phone] or [phone] or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.

Sincerely yours,

Sace ubtayns

Sally A. Hojvat. M Director Division of Microbiology Devices Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health

Enclosure

{8}------------------------------------------------

# INDICATIONS FOR USE STATEMENT

510(k) Number: K103610

Device Name: Clearview® Exact II Influenza A & B Test

### Indications For Use:

The Clearview® Exact II Influenza A & B Test is an in vitro immunochromatographic assay for the qualitative detection of influenza A and B nucleoprotein antigens in nasal swab specimens collected from symptomatic patients. It is intended to aid in the rapid differential diagnosis of influenza A and B viral infections. It is recommended that negative test results be confirmed by cell culture. Negative results do not reclude influenza virus infection and should not be used as the sole basis for treatment or other management decisions.

Prescription Use × AND/OR (Part 21 CFR 801 Subpart D)

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

PLEASE DO NOT WRITE BELOW THIS LINE - (CONTINUE ON ANOTHER PAGE IF NEEDED)

FODRH, Office of Device Evaluation (ODE

Office of In Vitro Diagnostic Device Evaluation and Safety

510(k) K103610