The ACE Calibrator is a device intended to be used with the Sentinel ACE Liquid Reagent for the preparation of the calibration curve for the kinetic determination of angiotensing enzyme (ACE) assay in human serum or plasma. The product is for in vitro diagnostic use only.

Device Description

The ACE Calibrator is a single level, single analyte serum based calibrator. It consists of a lyophilized preparation of human serum containing angiotensin converting enzyme (porcine source), in a buffered human serum base with added preservatives and stabilizers. The kit consists of six vials, containing 1 mL per vial. Once reconstituted, the calibrator is stable for 7 days when stored capped at 2-8°C.

AI/ML Overview

Here's an analysis of the acceptance criteria and the study that proves the device meets them, based on the provided text:

Acceptance Criteria and Device Performance

1. Table of Acceptance Criteria and Reported Device Performance

Feature	Acceptance Criteria	Sentinel ACE Calibrator Performance
Value Assignment & Verification Process	Defined acceptance criteria met.	"Defined acceptance criteria was met for the value assignment and verification process."
Shelf-life Stability (Lyophilized)	Stability for at least 36 months (3 years) at 2-8°C.	Stable for at least 38 months when stored sealed at 2-8°C.
Reconstituted Stability (Open Vial)	Within ± 5.0% difference in ACE recoveries between fresh calibrator and calibrator reconstituted and stored for 7 days at 2-8°C.	"The results demonstrated that the ACE Calibrator met the acceptance criteria of within ± 5.0% difference in ACE recoveries between fresh calibrator and calibrator reconstituted and stored for 7 days at 2-8°C."

2. Sample Size and Data Provenance for Test Set

Sample Size for Value Assignment: For the primary value assignment, five replicates of pooled ACE calibrator were analyzed on each run across two Abbott Architect analyzers over two days, resulting in a total of 20 replicates.
Sample Size for Shelf-life Stability: Two distinct batches of ACE Calibrator were used.
- Batch #1: Data collected over 46 months.
- Batch #2: Data collected over 38 months.
Sample Size for Reconstituted Stability: Three vials of ACE Calibrator were reconstituted and pooled. Testing occurred at Day 0 (fresh), Day 2, Day 7, and Day 8. The calibrator and controls were run in triplicate for each test point.
Data Provenance: The document does not explicitly state the country of origin for the data; however, the submitter is from Milano, Italy. The value assignment utilized proficiency survey material from the College of American Pathologists (CAP) ACE program and WEQAS (Wales External Quality Assurance Scheme), suggesting international reference materials were incorporated. All studies mentioned are prospective in nature, as they involve testing the device under controlled conditions to determine its performance and stability.

3. Number of Experts and Qualifications for Ground Truth

The document does not mention a specific number of experts or their qualifications for establishing ground truth for the test set.
For the value assignment (a form of ground truth establishment for the calibrator's value), it mentions using proficiency survey material from CAP ACE program and WEQAS. While these programs rely on expert consensus or established methodologies, the document doesn't detail the number or qualifications of experts involved in those programs.

4. Adjudication Method for the Test Set

The document does not describe an adjudication method (like 2+1 or 3+1) for the test set. The performance testing relies on quantitative measurements and comparisons against predefined criteria rather than subjective expert review.

5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study

No, an MRMC comparative effectiveness study was not done. This device is a calibrator, not an imaging or diagnostic device that typically involves human reader interpretation. Therefore, a study comparing human readers with and without AI assistance is not applicable.

6. Standalone (Algorithm Only) Performance Study

Yes, the studies reported are essentially standalone performance studies for the calibrator. The device is a calibrator, and its performance is assessed intrinsically (e.g., its ability to maintain its assigned value over time, its stability when reconstituted) on analytical instruments (e.g., Abbott Architect analyzers, Cobas Mira) against established reference materials or its initial performance. There is no "human-in-the-loop" aspect to its performance as a calibrator.

7. Type of Ground Truth Used

For Value Assignment: The ground truth for the calibrator's assigned value was established by targeting traceability to the Trinity Biotech ACE reagent system a market leader, and using proficiency survey material from CAP ACE program and WEQAS. This leans towards a form of expert consensus/reference method through established external quality assurance programs and a highly regarded commercial product.
For Stability Studies: The ground truth for stability was the initial performance/recovery value of the calibrator at the time of manufacture. Subsequent measurements were compared against this baseline.

8. Sample Size for the Training Set

The document does not mention a training set in the context of machine learning or AI. This device is a calibrator, and its development and validation do not involve AI model training.

9. How Ground Truth for Training Set Was Established

Not applicable, as there is no mention of a training set for an AI model.

Summary

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510(k) SUMMARY

JUL 28 2014

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

The assigned 510(k) number is: K141728.

510(k) holder/Submitter:

Sentinel CH. SpA

Submitter's Address:

Via Robert Koch, 2 20152 Milano — ITALY

Submitter's Telephone: Submitter's Fax:

+39 023455141 +39 0234551464

Contact Name:	Patricia Dupé
Contact Email:	patriciadupe@sentinel.it
Contact Title:	Regulatory Affairs Manager
Contact Telephone:	+39 0234551496

510(k) Summary Preparation Date:

17th July 2014

Proprietary Name:	ACE Calibrator
Common or Usual Name:	Angiotensin Converting Enzyme Calibrator
Classification:	Calibrator, Secondary (21 CFR 862.1150)Class IIClinical ChemistryJIT
Predicate Device:	Analytical Control Systems ACE CalibratorProduct Code, SC-131Cleared under 510(k) - K930477

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Description of the Device:

The kit consists of six vials, containing 1 mL per vial. Once reconstituted, the calibrator is stable for 7 days when stored capped at 2-8°C.

Statement of the Intended Use:

ACE Calibrator is intended to be used with the Sentinel ACE Liquid Reagent for the preparation of the calibration curve for the kinetic determination of angiotensin converting enzyme (ACE) assay in human serum or plasma. The product is for in-vitro diagnostic use only.

Summary of the technological characteristics of the device compared to the predicate device:

The Sentinel ACE Calibrator is substantially equivalent to Analytical Control Systems (ACS) ACE Calibrator.

Table 1 summarizes the technological characteristics of the ACE Calibrator, illustrating the similarities and differences between the Sentinel ACE Calibrator and Analytical Control Systems ACE Calibrator (Predicate Device).

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동물에게서부분들

able1T1-
--------------------------	--

Characteristic	Sentinel ACE Calibrator	ACS ACE Calibrator(Predicate)
	Similarities
Intended Use	Intended to be used withthe Sentinel ACE LiquidReagent for the preparation ofthe calibration curve for thekinetic determination ofangiotensin converting enzyme(ACE) assay in human serum orplasma.	Intended to be used to prepare areference curve for the kineticdetermination ofangiotensinconverting enzyme(ACE)inhuman serum or plasma.
Format/Matrix	Lyophilized preparation of humanserum containing ACE (porcine),preservatives and stabilisers.	Lyophilized preparation of humanserum containing ACE (porcine),preservatives and stabilisers.
Preparation	Carefully peel the metal flip sealfrom the vial using tweezers or aspatula to assist.	Add 1.0mL water to vial of ACECalibrator. Swirl gently, allowing tostand for 5 minutes. Invert gently
	Gently remove the stopper toavoid loss of the lyophilized pelletand add exactly 1.0 mL ofdeionized water. Replace stopperand gently swirl.	and mix well until dissolution iscomplete. Swirl gently to mixbefore each use.
	Leave to stand for 5 minutes. Swirleach vial just prior to use. Avoidfoaming.
Stability	Lyophilized:Stable at 2-8°C up to expiry dateindicated on the packagelabelling.Reconstituted material:Stable 7 days when stored at2-8°C, if contamination is avoidedand vials are recappedimmediately after use.	Lyophilized:Stable at 2-8°C until expirationdate displayed on label.Reconstituted material:Stable for at least 7 days whenstoppered and stored at 2-8°C.
Levels	Single Level	Single Level
ConstituentAnalyte(s)	Angiotensin Converting Enzyme(ACE)	Angiotensin Converting Enzyme(ACE)
Differences
No significant differences identified

KD 10001:2008 - ISO 13465.2012 vari 150 13465.2008 CRIPCMS - 80 QHONG 12801: 2904

ಿ ಟ್ಟಾಡ, ಮಾಡಿಗೆಯ ಮೊತ್ತಿಗಳು ಮತ್ತು ಸಾಂಧರಿ ಹಾ. ಯಾರಾ

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Image /page/3/Picture/0 description: The image shows the words "SENTINEL DIAGNOSTICS" in all caps. The word "SENTINEL" is in a larger, bolder font than the word "DIAGNOSTICS." The words are arranged in two rows, with "SENTINEL" on the top row and "DIAGNOSTICS" on the bottom row. The font is sans-serif.

Summary of Performance Testing:

(1) Traceability

The Sentinel ACE Calibrator was value assigned using an in-house protocol whereby proficiency survey material from the College of American Pathologists (CAP) ACE program, which has assigned values for the Trinity ACE readent system, was used to assign a value to the Sentinel master calibrator. The value assignment involved running at least two runs per day over two days on two Abbott Architect analyzers using Sentinel ACE Liquid assay. Five replicates of pooled ACE calibrator were analyzed on each run to give a total of 20 replicates. The assigned value was the mean of the 20 replicates.

The assigned value was then verified by running commercially available control sera for ACE as well as available ACE proficiency survey material from CAP and WEQAS (Wales External Quality Assurance Scheme).

Defined acceptance criteria was met for the value assignment and verification process.

No internationally recognised certified reference material or method is available for the measurement of ACE. As such the Sentinel ACE Calibrator targeted traceability to the Trinity Biotech ACE reagent system, which is considered to be a market leader in the determination of Angiotensin Converting Enzyme activity.

(2) Stability

(i) Shelf-life Stability

Real time stability data was presented on 2 different batches of ACE Calibrator. Accelerated heat stress testing was not performed on the calibrator as the angiotensin converting enzyme in the calibrator is heat labile and therefore not stable at elevated temperatures.

At time of manufacture, calibrator was reconstituted with 1 mL of deionised water and tested on a Cobas Mira, using Trinity Biotech ACE reagent. The calibrator recovery value represented the initial time result.

After 46 months (batch # 1) and 38 months (batch # 2) storage at 2-8°C as a lyophilized and capped fill, the Calibrator was re-tested after being reconstituted with deionised water and stored for 7 days at 2-8°C. The calibrator mean recovery result after 46 and 38 months respectively was compared against the initial time result (at time of manufacture) and % bias versus initial time result calculated.

The data demonstrates that the un-reconstituted calibrator when stored sealed at 2-8°C is stable for at least 38 months. Based on the shelf life data presented, the claimed shelf will be 36 months (3 years) from date of manufacture, which is the same shelf life as claimed by the predicate device.

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Image /page/4/Picture/0 description: The image shows the words "SENTINEL DIAGNOSTICS" in all capital letters. The word "SENTINEL" is in a larger, bolder font than the word "DIAGNOSTICS", which is directly below it. The text is black against a white background.

(ii) Reconstituted Stability (Open vial)

3 vials of ACE Calibrator were reconstituted with 1 mL of deionised water as instructed on the package insert and pooled into a single vial. The pooled calibrator was then stored at 2-8°C for at least 7 days.

ACE Calibrator reconstituted for 7 days at 2-8℃ was tested against freshly reconstituted ACE calibrator. Sentinel ACE Liquid assay was used for testing together with approved instrument application on the Abbott Architect analyzer. Freshly reconstituted calibrator was used to calibrate the ACE assay. ACS ACE Controls were run as Quality Control material. The calibrator and controls were run in triplicate.

In addition to 7 days, calibrator was also tested at day 2 and day 8 (stored at 2-8°C).

The recovery of the freshly reconstituted calibrator was compared to the recovery of calibrator stored for 7 days refrigerated at 2-8°C.

The results demonstrated that the ACE Calibrator met the acceptance criteria of within ± 5.0% difference in ACE recoveries between fresh calibrator and calibrator reconstituted and stored for 7 days at 2-8°C.

The reconstituted ACE Calibrator is stable and can be used for up to 7 days when stored capped and refrigerated at 2-8°C.

Conclusion:

The Sentinel ACE Calibrator and the Analytical Control Systems ACE Calibrator (predicate device) are substantially equivalent .

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DEPARTMENT OF HEALTH & HUMAN SERVICES

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 stylized eagle with three stripes representing the department's mission. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" are arranged in a circular pattern around the eagle.

Public Health Service

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

July 28, 2014

SENTINEL CH. SPA PATRICIA DUPE REGULATORY AFFAIRS MANAGER VIA ROBERT KOCH, 2 MILANO 20152 ITALY

Re: K141728

Trade/Device Name: ACE Calibrator Regulation Number: 21 CFR 862.1150 Regulation Name: Calibrator Regulatory Class: II Product Code: JIT Dated: June 19, 2014 Received: June 26, 2014

Dear Ms. Patricia Dupé:

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. Iisting 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 Parts 801 and 809); medical device reporting (reporting of medical device-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.

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Page 2-Ms. Duné

If you desire specific advice for your device on our labeling regulations (21 CFR Parts 80) and 809), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638 2041 or (301) 796-7100 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/ReportalProblem/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 (800) 638-2041 or (301) 796-7100 or at its Internet address

http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.

Sincerely yours.

Courtney H. Lias -S

Courtney H. Lias, Ph.D. Director Division of Chemistry and Toxicology Devices Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health

Enclosure

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DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration

Indications for Use

Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement below.

510(k) Number (if known) K141728

Device Name ACE Calibrator

Indications for Use (Describe)

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

2 Prescription Use (Part 21 CFR 801 Subpart D)

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

PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.

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Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)

Yung W. Chan -S

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FORM FDA 3881 (1/14)

Regulation Number and Section

§ 862.1150 Calibrator.

(a)
Identification. A calibrator is a device intended for medical purposes for use in a test system to establish points of reference that are used in the determination of values in the measurement of substances in human specimens. (See also § 862.2 in this part.)(b)
Classification. Class II (special controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 862.9.