K Number
K962521
Device Name
FACTPLUS ONE STEP PREGNANCY TEST
Date Cleared
1996-07-29

(40 days)

Product Code
Regulation Number
862.1155
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The FactPLUS® One Step Pregnancy Test is an over-the-counter in vitro diagnostic immunoassay intended for the qualitative detection of human chorionic gonadotropin (hCG) in urine. This device is the same device as ADVANCE® Pregnancy Test, with a labeling modification that provides for reading the test in three minutes without affecting the accuracy, sensitivity or specificity of the test. FactPLUS Cne Step Pregnancy Test is indicated for consumer use to detect pregnancy as early as first day of a missed period, using a direct urine stream sampling mode. Test results can be read after three minutes. Some positives appear as soon as one minute, neaative results are confirmed in three minutes.
Device Description
The FactPLUS One Step Pregnancy Test is an elongated "Test Stick" constructed of two pieces of molded plastic which house the internal chemistry strip. The chemistry strip contains a conjugate site, an antibody reaction site and a test control site. There are three openings on the upper surface of the Test Stick: - "Urine Well" . - "Result Window" . - "Control Window" . Urine is absorbed through the Urine Well and travels along the test membrane to the Result Window (reaction site) and finally to the Control Window. The conjugate (anti-α hCG antibody) present on the membrane is mobilized by the urine flow. If hCG molecules are present in the urine, an hCG/conjugate/complex is formed. The mobilized hCG/conjugate/ complex continues to migrate along the strip to the reaction site where it binds with the anti-ß hCG antibody present on the vertical bar and the polyclonal antibody present on the horizontal bar causing both bars to turn pink. The appearance of pink color on both intersecting bars create the plus sign or "pregnant" result. This reaction generally appears within three minutes. Some positives appear as soon as one minute; however, negative results are confirmed in three minutes. In the absence of hCG molecules, the conjugate remains unbound and attaches only to the antibody present on the horizontal bar, causing it to turn pink. The appearance of only one reaction bar constitutes the minus or ("not pregnant") result. The urine continues to migrate until it reaches the Control Window where it reacts with a special dye causing a red color to appear. The red color in the CW is an indication that enough urine was added to the device. It takes approximately five minutes after the addition of urine for the Control Window to turn red. A labeling modification and optimization of the test antibodies, enable the results to be read sooner than previous versions of the test and eliminates the restriction of waiting for red color in the Control Window before reading the results.
More Information

ADVANCE® Pregnancy Test

Not Found

No
The device description details a chemical immunoassay with visual interpretation, and there is no mention of AI or ML in the document.

No.
This device is an in vitro diagnostic immunoassay that detects hCG in urine to indicate pregnancy; it does not treat or prevent any condition.

Yes

The "Intended Use / Indications for Use" section explicitly states that the FactPLUS® One Step Pregnancy Test is "an over-the-counter in vitro diagnostic immunoassay intended for the qualitative detection of human chorionic gonadotropin (hCG) in urine."

No

The device description clearly outlines a physical "Test Stick" with internal chemistry strips, urine wells, and result windows, indicating it is a hardware-based in vitro diagnostic device, not software only.

Yes, this device is an IVD (In Vitro Diagnostic).

The "Intended Use / Indications for Use" section explicitly states: "The FactPLUS® One Step Pregnancy Test is an over-the-counter in vitro diagnostic immunoassay intended for the qualitative detection of human chorionic gonadotropin (hCG) in urine."

This statement directly identifies the device as an in vitro diagnostic.

N/A

Intended Use / Indications for Use

The FactPLUS® One Step Pregnancy Test is an over-the-counter in vitro diagnostic immunoassay intended for the qualitative detection of human chorionic gonadotropin (hCG) in urine. This device is the same device as ADVANCE® Pregnancy Test, with a labeling modification that provides for reading the test in three minutes without affecting the accuracy, sensitivity or specificity of the test.

FactPLUS Cne Step Pregnancy Test is indicated for consumer use to detect pregnancy as early as first day of a missed period, using a direct urine stream sampling mode. Test results can be read after three minutes. Some positives appear as soon as one minute, neaative results are confirmed in three minutes.

Product codes

Not Found

Device Description

The FactPLUS One Step Pregnancy Test is an elongated "Test Stick" constructed of two pieces of molded plastic which house the internal chemistry strip. The chemistry strip contains a conjugate site, an antibody reaction site and a test control site. There are three openings on the upper surface of the Test Stick:

  • "Urine Well" .
  • "Result Window" .
  • "Control Window" .

Urine is absorbed through the Urine Well and travels along the test membrane to the Result Window (reaction site) and finally to the Control Window. The conjugate (anti-α hCG antibody) present on the membrane is mobilized by the urine flow. If hCG molecules are present in the urine, an hCG/conjugate/complex is formed. The mobilized hCG/conjugate/ complex continues to migrate along the strip to the reaction site where it binds with the anti-ß hCG antibody present on the vertical bar and the polyclonal antibody present on the horizontal bar causing both bars to turn pink. The appearance of pink color on both intersecting bars create the plus sign or "pregnant" result. This reaction generally appears within three minutes. Some positives appear as soon as one minute; however, negative results are confirmed in three minutes.

In the absence of hCG molecules, the conjugate remains unbound and attaches only to the antibody present on the horizontal bar, causing it to turn pink. The appearance of only one reaction bar constitutes the minus or ("not pregnant") result. The urine continues to migrate until it reaches the Control Window where it reacts with a special dye causing a red color to appear. The red color in the CW is an indication that enough urine was added to the device. It takes approximately five minutes after the addition of urine for the Control Window to turn red. A labeling modification and optimization of the test antibodies, enable the results to be read sooner than previous versions of the test and eliminates the restriction of waiting for red color in the Control Window before reading the results.

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

Not Found

Intended User / Care Setting

consumer use

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

Laboratory Validation Studies:

  • Sample Size: Not explicitly stated, but performed "across three different lots of marketed ADVANCE."
  • Data Source: hCG-positive and hCG-negative female clinical urine specimens.
  • Annotation Protocol: Results read according to modified labeling (three minutes) and current labeling (five minutes). Test results read at one minute were also evaluated. Confirmation by running another currently marketed pregnancy test simultaneously.

Consumer Testing:

  • Sample Size: 150 female volunteers.
  • Data Source: Volunteers recruited from a Central New Jersey location.
  • Annotation Protocol: 147 out of 150 volunteers were instructed to read the test results at three minutes and their performance/interpretation was assessed.

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

Study Type: Laboratory Validation Studies (accuracy, specificity, sensitivity) and Consumer Clinical Study.

Laboratory Validation Studies:

  • Sample Size: Not explicitly stated for overall samples, but conducted across "three different lots of marketed ADVANCE."
  • Key Results:
    • Accuracy: 100% agreement between results read at three minutes (modified labeling) and five minutes (current labeling). 98% agreement for results read at one minute.
    • Sensitivity: 100% agreement between modified and current labeling directions.
    • Specificity: 100% agreement between modified and current labeling directions.

Consumer Clinical Study:

  • Sample Size: 150 female volunteers.
  • Key Results: 147 out of 150 volunteers (98%) performed the test and interpreted the results correctly when reading at three minutes.

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

Laboratory Validation Studies:

  • Accuracy: 99% (overall conclusion)
  • Sensitivity: 100%
  • Specificity: 100%

Consumer Clinical Study:

  • Overall accuracy rate (consumer interpretation): 98%

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.

ADVANCE® Pregnancy Test

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

Not Found

§ 862.1155 Human chorionic gonadotropin (HCG) test system.

(a)
Human chorionic gonadotropin (HCG) test system intended for the early detection of pregnancy —(1)Identification. A human chorionic gonadotropin (HCG) test system is a device intended for the early detection of pregnancy is intended to measure HCG, a placental hormone, in plasma or urine.(2)
Classification. Class II.(b)
Human chorionic gonadotropin (HCG) test system intended for any uses other than early detection of pregnancy —(1)Identification. A human chorionic goadotropin (HCG) test system is a device intended for any uses other than early detection of pregnancy (such as an aid in the diagnosis, prognosis, and management of treatment of persons with certain tumors or carcinomas) is intended to measure HCG, a placental hormone, in plasma or urine.(2)
Classification. Class III.(3)
Date PMA or notice of completion of a PDP is required. As of the enactment date of the amendments, May 28, 1976, an approval under section 515 of the act is required before the device described in paragraph (b)(1) may be commercially distributed. See § 862.3.

0

Image /page/0/Picture/0 description: The image shows the logo for Direct Access Diagnostics. The logo consists of a stylized letter D on the left, followed by the words "DIRECT ACCESS" in a larger font size on the top line, and the word "DIAGNOSTICS" in a smaller font size on the bottom line. The text is in a sans-serif font and is black.

Jul 2 9 1996

510(k) SUMMARY per 21CFR 807.92(c)

June 14, 1996

Trade name -FactPLUS® One Step Pregnancy Test
Common name -Consumer Use Home Pregnancy Test
Classification name-Human Chorionic Gonadotropin (hCG) Test System

Statement

Information supporting claims of substantial equivalence, as defined under the Federal Food Drug and Cosmetic Act, respecting safety and effectiveness is summarized below. For the convenience of the reviewer, this summary is formatted in accordance with the Agency's final rule... "510(k) Summaries and 510(k) Statements." (21CFR 807) and can be used to provide a substantial equivalence summary to anyone requesting it from the Agency.

  • Modified device name: FactPLUS® One Step Pregnancy Test .
  • . Predicate device name: ADVANCE® Pregnancy Test

Intended Use

The FactPLUS® One Step Pregnancy Test is an over-the-counter in vitro diagnostic immunoassay intended for the qualitative detection of human chorionic gonadotropin (hCG) in urine. This device is the same device as ADVANCE® Pregnancy Test, with a labeling modification that provides for reading the test in three minutes without affecting the accuracy, sensitivity or specificity of the test.

Indications

FactPLUS Cne Step Pregnancy Test is indicated for consumer use to detect pregnancy as early as first day of a missed period, using a direct urine stream sampling mode. Test results can be read after three minutes. Some positives appear as soon as one minute, neaative results are confirmed in three minutes.

Safety

Home pregnancy tests for detection of hCG in urine have been safely used and in commercial distribution for over two decades. In vitro diagnostic hCG urine tests which do not come in contact with the body are not generally associated with safety issues. Home-use pregnancy tests are categorized as "waived" status under the 1988 Clinical Laboratory and Improvement Amendment (CLIA).

1

510(k) SUMMARY (continued) XI.

Device Description

The FactPLUS One Step Pregnancy Test is an elongated "Test Stick" constructed of two pieces of molded plastic which house the internal chemistry strip. The chemistry strip contains a conjugate site, an antibody reaction site and a test control site. There are three openings on the upper surface of the Test Stick:

  • "Urine Well" .
  • "Result Window" .
  • "Control Window" .

Urine is absorbed through the Urine Well and travels along the test membrane to the Result Window (reaction site) and finally to the Control Window. The conjugate (anti-α hCG antibody) present on the membrane is mobilized by the urine flow. If hCG molecules are present in the urine, an hCG/conjugate/complex is formed. The mobilized hCG/conjugate/ complex continues to migrate along the strip to the reaction site where it binds with the anti-ß hCG antibody present on the vertical bar and the polyclonal antibody present on the horizontal bar causing both bars to turn pink. The appearance of pink color on both intersecting bars create the plus sign or "pregnant" result. This reaction generally appears within three minutes. Some positives appear as soon as one minute; however, negative results are confirmed in three minutes.

In the absence of hCG molecules, the conjugate remains unbound and attaches only to the antibody present on the horizontal bar, causing it to turn pink. The appearance of only one reaction bar constitutes the minus or ("not pregnant") result. The urine continues to migrate until it reaches the Control Window where it reacts with a special dye causing a red color to appear. The red color in the CW is an indication that enough urine was added to the device. It takes approximately five minutes after the addition of urine for the Control Window to turn red. A labeling modification and optimization of the test antibodies, enable the results to be read sooner than previous versions of the test and eliminates the restriction of waiting for red color in the Control Window before reading the results.

Substantial Equivalence

The FactPLUS® One Step is substantially equivalent to, and is the same device as, the currently marketed ADVANCE® Pregnancy Test with a modification to the labeling for reading the results sooner. Results obtained in three minutes and some positives as soon as 1 minute, per the FactPLUS One Step labeling are substantially equivalent to results obtained in five minutes per the current ADVANCE labeling.

The proposed and the marketed devices have the same intended use, technology, performance characteristics, chemistry, component materials, and test analyte. The device can be used the first day of missed period, any time of the day.

2

510(k) SUMMARY (continued) XI.

Performance Data

Substantial equivalence was demonstrated in laboratory validation studies which tested for accuracy, specificity and sensitivity at the new time frame.

Accuracy was performed using hCG-positive and hCG-negative female clinical urine specimens across three different lots of marketed ADVANCE. Test results read according to the modified labeling directions at (three minutes) and according to the current labeling directions (five minutes), demonstrated 100% agreement. Test results read at the one minute time frame demonstrated 98% agreement. Results were confirmed by running another currently marketed pregnancy test simultaneously.

Additionally, laboratory testing for both sensitivity and specificity read according to the modified and current labeling directions, demonstrated 100% agreement.

Consumer Testing

A consumer clinical study was conducted to verify that consumers could obtain accurate test results when performing the FactPLUS One Step test according to modified directions for reading the test at three minutes. The consumer population consisted of 150 female volunteers recruited from a Central New Jersey location. The volunteers were between the ages of 18 to 45, from various income, educational and employment backgrounds. One hundred forty-seven (147) of one hundred fifty volunteers who were instructed to read the test results at three minutes, performed the test and interpreted the results correctly for an overall accuracy rate of 98%.

Conclusion

The FactPLUS Pregnancy Test with modified directions has been shown to be substantially equivalent to the currently marketed ADVANCE Pregnancy Test in laboratory validation testing for accuracy, sensitivity, specificity demonstrating 99%, 100% & 100% respectively.

Additionally, results of consumer clinical testing demonstrated that the FactPLUS One Step can be performed and correctly interpreted by consumers at three minutes with an overall accuracy rate of 98%.