(166 days)
Not Found
No
The device description and performance studies focus on traditional immunofluorescence techniques and microscopy, with no mention of AI or ML for image analysis or interpretation.
No
The device is an in vitro diagnostic test for detecting CMV pp65 antigen, intended as an aid in diagnosis, not for treating or preventing disease.
Yes
The 'Intended Use' section states that the device is "intended for use as an aid in the diagnosis of Cytomegalovirus (CMV) infection."
No
The device description clearly outlines a laboratory-based test kit involving reagents, antibodies, and microscopy, indicating it is a hardware-based diagnostic test, not software-only.
Yes, this device is an IVD (In Vitro Diagnostic).
Here's why:
- Intended Use: The intended use explicitly states it's for "aid in the diagnosis of Cytomegalovirus (CMV) infection by the rapid direct qualitative detection of CMV pp65 antigen in human blood leukocytes". This clearly indicates it's used to examine specimens from the human body to provide information for diagnostic purposes.
- Device Description: The description details a test performed on "leukocytes from peripheral blood" using antibodies and fluorescence microscopy. This is a typical in vitro diagnostic procedure.
- Performance Studies: The performance studies compare the device to a "culture method using human peripheral blood leukocytes," further confirming it's used to analyze biological samples outside the body.
The definition of an IVD is a medical device that is used to examine specimens from the human body to provide information for diagnostic, monitoring, or compatibility purposes. This device fits that definition perfectly.
N/A
Intended Use / Indications for Use
Bartels CINAkit CMV Antigenemia is intended for use as an aid in the diagnosis of Cytomegalovirus (CMV) infection by the rapid direct qualitative detection of CMV pp65 antigen in human blood leukocytes by indirect immunofluorescence (IF). This product is not intended to be used for testing (i.e. screening) blood or plasma donors.
Product codes (comma separated list FDA assigned to the subject device)
834N, GQH
Device Description
BARTELS CINAKIT CMV Antigenemia is an indirect immunofluorescence test that allows detection of Human Cytomegalovirus antigen in leukocytes from peripheral blood. The test uses a monoclonal antibody pool (1C3, AYM-1) which recognizes the 65-68kDa lower matrix structural phosphoprotein (pp) (protein kinase, pp65, present in the nucleus of cells. The antibody pool (blended antibodies) recognizes two epitopes on the protein.
Leukocytes are prepared from whole blood by dextran sedimentation and centrifugation; slides are prepared, fixed in formalin and permeabilized on detergent (NP40). Staining is accomplished with primary murine monoclonal antibodies to the pp65 antigen and F(Ab-)2 fluorescein-conjugated anti-mouse immunoglobulin secondary antibody. The slides are read using a fluorescence microscope.
The substantial equivalence claim between Bartels CINAkit CMV Antigenernia and Biotest CMV Brite Test is based on the attached comparison table (Table 1) and clinical study data
BARTELS CINAKIT CMV Antigenemia Method :
- Isolation of peripheral blood leukocytes 1.
-
- Preparation of cytospin slides
- ತೆ. Fixation and permeabilization
-
- Indirect immunofluorescence staining using anti CMV pp65
-
- Interpretation of results
Leukocytes are isolated from whole blood by dextran sedimentation of erythrocytes and centrifugation of leukocytes followed by hypotonic lysis of residual erythrocytes with ammonium chloride. Slides are prepared fixed in formalin and permeabilized with detergent. Staining is accomplished with primary murine monoclonal antibodies to the pp65 antigen and F(Ab)2 fluorescein-conjugated anti-mouse immunoglobulin secondary antibody. The slides are read using a fluorescence microscope.
Immunofluorescence is the preferred method of staining. It has been reported that techniques used to block endogenous enzymatic activity (peroxidase or alkaline phosphatase) can destroy the antigen recognized in antigenemia. Bartels' blended antibody preparation targets different epitopes on the pp65 antigen and thus ensures avoidance of false negatives that may be caused by mutation of one of the epitopes recognized. This anti-pp65 preparation stains cells in positive samples.
Mentions image processing
Not Found
Mentions AI, DNN, or ML
Not Found
Input Imaging Modality
Not Found
Anatomical Site
human blood leukocytes
Indicated Patient Age Range
Not Found
Intended User / Care Setting
Not Found
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)
Bartels CINAkit CMV Antigenemia was compared to CMV virus detection by the culture method using human peripheral blood leukocytes. Three hundred thirty-five (335) clinical specimens were evaluated in comparison to the culture method. In the same study, the performance of a comparable commercial CMV Antigementia test ("Other CMV") was also was compared to CMV virus detection by culture using human peripheral blood leukocytes from the same specimens.
The performance characteristics for Bartels CINAkit CMV Antigeneraia, using the culture method as the "gold standard", are as follows:
Sensitivity = 29/35 = 83% (95% Confidence interval = 70.4 - 95.3%)
Specificity = 266/300 = 89% (95% Confidence interval = 85.1 - 92.3%)
Cross Reactivity: Bartels CINAkit CMV Antigenemia has been tested against the following viruses and has shown no cross-reactivity: Human Immunodeficiency Virus (HIV), Human Herpes Simplex Virus Type 1 (HSV-1), Human Herpes Simplex Virus Type 2 (HSV-2), Varicella Zoster Virus (VZV), Epstein-Barr Virus (EBV), Herpesvirus Type 6 (HHV-6) A variant strain TAN, Herpesvirus Type 6 (HHV-6) B variant strain HST, Influenza A, Influenza B, Parainfluenza Type I, Parainfluenza Type II, Parainfluenza Type III, Adenovirus, Respiratory Syncytial Virus. Each of the aforementioned 14 viruses was found to be negative by immunofluorescence using the CINAkit reagents. Positive control antibodies produced staining of +3 to +4 for its corresponding slide, concluding high specificity for CMV. Note: Absence of cross-reactivity against Echovirus 11 and 30 has not been established.
Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)
Bartels CINAkit CMV Antigenemia:
Sensitivity: 82.86%
Specificity: 88.67%
Accuracy: 88.06%
Performance characteristics using culture method as "gold standard":
Sensitivity = 83% (95% Confidence interval = 70.4 - 95.3%)
Specificity = 89% (95% Confidence interval = 85.1 - 92.3%)
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.
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.
Not Found
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
§ 866.3175 Cytomegalovirus serological reagents.
(a)
Identification. Cytomegalovirus serological reagents are devices that consist of antigens and antisera used in serological tests to identify antibodies to cytomegalovirus in serum. The identification aids in the diagnosis of diseases caused by cytomegaloviruses (principally cytomegalic inclusion disease) and provides epidemiological information on these diseases. Cytomegalic inclusion disease is a generalized infection of infants and is caused by intrauterine or early postnatal infection with the virus. The disease may cause severe congenital abnormalities, such as microcephaly (abnormal smallness of the head), motor disability, and mental retardation. Cytomegalovirus infection has also been associated with acquired hemolytic anemia, acute and chronic hepatitis, and an infectious mononucleosis-like syndrome.(b)
Classification. Class II (performance standards).
0
000017
Bartels CINAkit CMV Antigenemia DEC 1 4 1998 510(k) Premarket Notification
Confidential
6.0 510(K) SUMMARY
Name of Device and Classification (A)
Tradename: Bartels CINAkit CMV Antigenemia
Classification: Cytomegalovirus indirect immunofluorescence assay that consists of antisera which has been classified as a Class II (Performance Standards) device, product code, 834N, (21 CFR 866.3175).
(B) Legally Marketed Device
BARTELS CINAKIT CMV Antigenemia claims substantial equivalance to the BIOTEST CMV BRITE TEST Kit (K951550), currently in commercial distribution by BIOTEST Diagnostics, Denville, New Jersey (USA).
Device Description (C)
BARTELS CINAKIT CMV Antigenemia is an indirect immunofluorescence test that allows detection of Human Cytomegalovirus antigen in leukocytes from peripheral blood. The test uses a monoclonal antibody pool (1C3, AYM-1) which recognizes the 65-68kDa lower matrix structural phosphoprotein (pp) (protein kinase, pp65, present in the nucleus of cells. The antibody pool (blended antibodies) recognizes two epitopes on the protein.
Leukocytes are prepared from whole blood by dextran sedimentation and centrifugation; slides are prepared, fixed in formalin and permeabilized on detergent (NP40). Staining is accomplished with primary murine monoclonal antibodies to the pp65 antigen and F(Ab-)2 fluorescein-conjugated anti-mouse immunoglobulin secondary antibody. The slides are read using a fluorescence microscope.
The substantial equivalence claim between Bartels CINAkit CMV Antigenernia and Biotest CMV Brite Test is based on the attached comparison table (Table 1) and clinical study data
BARTELS CINAKIT CMV Antigenemia Method :
- Isolation of peripheral blood leukocytes 1.
-
- Preparation of cytospin slides
- ತೆ. Fixation and permeabilization
-
- Indirect immunofluorescence staining using anti CMV pp65
-
- Interpretation of results
Leukocytes are isolated from whole blood by dextran sedimentation of erythrocytes and centrifugation of leukocytes followed by hypotonic lysis of residual erythrocytes with
. : : }
1
@003/007
000018
Bartels CINAkit CMV Antigenernia 510(k) Premarket Notification
Confidential
ammonium chloride. Slides are prepared fixed in formalin and permeabilized with detergent. Staining is accomplished with primary murine monoclonal antibodies to the pp65 antigen and F(Ab)2 fluorescein-conjugated anti-mouse immunoglobulin secondary antibody. The slides are read using a fluorescence microscope.
Immunofluorescence is the preferred method of staining. It has been reported that techniques used to block endogenous enzymatic activity (peroxidase or alkaline phosphatase) can destroy the antigen recognized in antigenemia. Bartels' blended antibody preparation targets different epitopes on the pp65 antigen and thus ensures avoidance of false negatives that may be caused by mutation of one of the epitopes recognized. This anti-pp65 preparation stains cells in positive samples.
(D) Intended Use
Bartels CINAkit CMV Antigenemia is intended for use as an aid in the diagnosis of Cytomegalovirus (CMV) infection by the rapid direct qualitative detection of CMV pp65 antigen in human blood leukocytes by indirect immunofluorescence (IF). This product is not intended to be used for testing (i.e. screening) blood or plasma donors.
(E) Comparison with the Predicate Device
TABLE 1
| Product Name | Bartels CINAkit CMV
Antigenemia | Biotest CMV Brite |
|------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Intended Use Statement | "Bartels CINAkit CMV
Antigenemia is intended for use as
an aid in the diagnosis of
Cytomegalovirus (CMV) infection
by the rapid direct qualitative
detection of CMV pp65 antigen in
human blood leukocytes by indirect
immunofluorescence (IF). This
product is not intended to be used
for testing (i.e. screening) blood or
plasma donors." | "The Biotest CMV Brite Test Kit is
intended for the qualitative
detection of Cytomegalovirus
(CMV) lower matrix protein pp65
by indirect immunofluorescence
using microscopy in isolated
peripheral blood leukocytes
obtained from
ethylenediaminetetraacetic acid
(EDTA) and heparin anticoagulated
human peripheral blood. The
detection of CMV pp65 in human
peripheral blood cells aids in the
diagnosis of acute or reactivated
CMV infection. This product is not
FDA cleared (approved) for use in
testing (i.e. screening) of blood or
plasma donors." |
2
000019
Bartels CINAkit CMV Antigencmia 510(k) Premarket Notification
Confidential
| Target Population | Individuals suspected of acute or reactivated CMV infection. | Individuals suspected of acute or reactivated CMV infection. |
|---|---|---|
| Design/format | Indirect immunofluorescence assay (IFA) | Indirect immunofluorescence assay (IFA) |
| Materials | Cocktail (2) of murine monoclonal antibodies (CINA pool, 1C3/AYM-1) against lower matrix structural phospoprotein (pp65), FITC-conjugated secondary polyclonal antibody, Evans Blue counterstain, dextran solution, erythrocyte lysing reagents, fixative, sample diluents, and mounting fluid. | Cocktail (2) of murine monoclonal antibodies (C10/C11) against lower matrix structural phospoprotein (pp65), FITC-conjugated secondary polyclonal antibody, Evans Blue counterstain, dextran solution, erythrocyte lysing reagents, fixative, sample diluents, and mounting fluid. |
| Performance Characteristics | Sensitivity: 82.86% | |
| Specificity: 88.67% | ||
| Accuracy: 88.06% | Sensitivity: 82.86% | |
| Specificity: 87.33% | ||
| Accuracy: 86.87% | ||
| Risk to patient | No unique issues of safety or effectiveness. | |
| Specimen Type | Anticoagulated [EDTA, heparin, or Adenine Citrate Dextrose (ACD)] human venous blood. | Anticoagulated (EDTA, heparin) human venous blood. |
| Analyte | CMV lower matrix structural phospoprotein (pp65) | CMV lower matrix structural phospoprotein (pp65) |
| Controls | Optional Positive and Negative Intracel CMV Control Slides (B1029-81B) not included in kit. | Positive and Negative Control Slides (20 per 100 test lab) |
| Leukocytes and SF9 Insect cells | ||
| Kit Size | 100 Tests | 100 Tests |
| Cell Count Required | $2 x 10^5$ cells | $1.5 x 10^5$ cells |
(F) Performance Data
】-Cross Reactivity
Bartels CINAkit CMV Antigenemia has been tested against the following viruses and has shown no cross-reactivity :
Human Immunodeficiency Virus (HIV) - Virion (Switzerland) Human Herpes Simplex Virus Type 1 (HSV-1) strain McIntyre (HHV-1) Human Herpes Simplex Virus Type 2 (HSV-2) strain M.S. (HHV-2) Varicella Zoster Virus (VZV) strain ATCC VR586 (HHV-3) Epstein-Barr Virus (EBV) strain B95.8 (HHV-4)
3
INTRACEL CORPORATION
の005/007
000020
| Bartels CINAkit CMV Antigenemia | |
|---|---|
| 510(k) Premarket Notification |
Confidential
Herpesvirus Type 6 (HHV-6) A variant strain TAN Herpesvirus Type 6 (HHV-6) B variant strain HST Influenza A - Puerto Rico/8/34 strain Influenza B - Russia/69 strain Parainfluenza Type I - C35 strain Parainfluenza Type II -Greer strain Parainfluenza Type III -Russia/69 strain or S.B. strain Adenovirus -Type 3 GB strain Respiratory Syncytial Virus - Long VR26 strain
Each of the aforementioned 14 viruses was found to be negative by immunofluorescence using the CINAkit reagents. However, positive control antibodies produced staining of +3 to +4 for its corresponding slide. It can be concluded that the Bartels CINAkit CMV monoclonal antibodies are highly specific for CMV.
Note: Absence of cross-reactivity against Echovirus 11 and 30 has not been established
Performance Characteristics 2.
Bartels CINAkit CMV Antigenemia was compared to CMV virus detection by the culture method using human peripheral blood leukocytes. Three hundred thirty-five (335) clinical specimens were evaluated in comparison to the culture method. In the same study, the performance of a comparable commercial CMV Antigementia test ("Other CMV") was also was compared to CMV virus detection by culture using human peripheral blood leukocytes from the same specimens. The performance data for the two Antigenemia tests, using the culture method as the "gold standard", are presented below.
| Antigenemia Method/Result | Culture (+)
n=35 | Culture (-)
n=300 |
|-------------------------------|---------------------|----------------------|
| Bartels CINAkit CMV (+) n=63 | 29 | 34 |
| Bartels CINAkit CMV (-) n=272 | 6 | 266 |
| Other CMV (+) n=67 | 29 | 38 |
| Other CMV (-) n=268 | 6 | 262 |
TABLE 2
Total n = 335
The performance characteristics for Bartels CINAkit CMV Antigeneraia, using the culture method as the "gold standard", are as follows:
Sensitivity = 29/35 = 83% (95% Confidence interval = 70.4 - 95.3%) Specificity = 266/300 = 89% (95% Confidence interval = 85.1 - 92.3%)
4
Bartels CINAkit CMV Antigenemia 510(k) Premarket Notification
- Conclusion (G)
Bartels Cina kit CMV Antigenemia is substantially equivalent to the predicate device, Biotest CMV Brite.
5
Image /page/5/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 image of three human profiles facing right, with flowing lines representing hair or clothing.
Food and Drug Administration 2098 Gaither Road Rockville MD 20850
DEC 1 4 1998
Fedora Daye Contreras, MPH Regulatory Affairs Associate Intracel 1330 Piccard Drive Rockville, MD 20850
Re: K982311 Trade Name: Bartels CINAkit CMV Antigenemia Regulatory Class: II Product Code: GQH Dated: October 2, 1998 Received: October 2, 1998
Dear Ms. Knapp:
We have reviewed your Section 510(k) notification of intent to market the device referenced above and we 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). 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 either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations. Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the Current Good Manufacturing Practice requirements, as set forth in the Quality System Regulation (OS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic OS inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition. FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.
6
Page 2
Under the Clinical Laboratory Improvement Amendments of 1988 (CLIA-88), this device may require a CLIA complexity categorization. To determine if it does, you should contact the Centers for Disease Control and Prevention (CDC) at (770)488-7655.
This letter will allow you to begin marketing your device as described in your 510(k) premarket 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 Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4588. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll free number (800) 638-2041 or at (301) 443-6597 or at its internet address "http://www.fda.gov/cdrh/dsmamain.html"
Sincerely yours,
Steven Sutman
Steven I. Gutman, M.D., M.B.A. Director Division of Clinical Laboratory Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
7
510(k) Number (if known): j
Device Name: Bartels CINAkit™ CMV Antigenemia Test
Indications For Use:
The Bartels CINAkit™ CMV Antigenemia Test is intended for use as an aid in the diagnosis of Cytomegalovirus (CMV) infection by the rapid direct qualitative detection of CMV pp65 antigen in human blood leukocytes by indirect immunofluorescence (IF). This product is not intended to be used for testing (i.e. screening) blood or plasma donors.
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Woody Dubois
pratory Devices 510(k) Number
Prescription Use (Per 21 CFR 801.109)
OR
Over-The-Counter Use_
(Optional Format 1-2-96)