← Product Code [CEW](/submissions/CH/subpart-b%E2%80%94clinical-chemistry-test-systems/CEW) · K060348

# MODIFICATION TO: TOTAL INTACT PTH IMMUNOCHEMILUMINOMETRIC (ICMA) ASSAY KIT (K060348)

_Scantibodies Laboratory, Inc. · CEW · Feb 27, 2006 · Clinical Chemistry · SESE_

**Canonical URL:** https://fda.innolitics.com/submissions/CH/subpart-b%E2%80%94clinical-chemistry-test-systems/CEW/K060348

## Device Facts

- **Applicant:** Scantibodies Laboratory, Inc.
- **Product Code:** [CEW](/submissions/CH/subpart-b%E2%80%94clinical-chemistry-test-systems/CEW.md)
- **Decision Date:** Feb 27, 2006
- **Decision:** SESE
- **Submission Type:** Special
- **Regulation:** 21 CFR 862.1545
- **Device Class:** Class 2
- **Review Panel:** Clinical Chemistry

## Indications for Use

The Scantibodies Laboratory, Inc. Total Intact Parathyroid Hormone (PTH) test system is a device intended to measure parathyroid hormone in plasma. Measurements of a crother incone levels are used in the differential diagnosis of hypercalcemia (abnormally high levels of calcium in the blood) and hypocalcemia (abnormally low levels of calcium in the blood) resulting from disorders of calcium metabolism.

## Device Story

The Total Intact PTH ImmunoChemiluminoMetric (ICMA) Assay is an in vitro diagnostic test system. It measures parathyroid hormone levels in human plasma samples. The device utilizes an immuno-chemiluminometric assay principle to quantify PTH concentrations. It is intended for use by clinical laboratory professionals to aid in the differential diagnosis of calcium metabolism disorders, specifically hypercalcemia and hypocalcemia. The output provides quantitative PTH values, which clinicians use to evaluate parathyroid function and manage patient calcium homeostasis.

## Clinical Evidence

Bench testing only. Data re-calibrated following adjustment factors applied to calibrators; verification and validation activities performed per design controls to ensure performance characteristics meet acceptance criteria.

## Technological Characteristics

ImmunoChemiluminoMetric (ICMA) assay; recalibrated calibrators; fundamental scientific technology unchanged from predicate.

## Regulatory Identification

A parathyroid hormone test system is a device intended to measure the levels of parathyroid hormone in serum and plasma. Measurements of parathyroid hormone levels are used in the differential diagnosis of hypercalcemia (abnormally high levels of calcium in the blood) and hypocalcemia (abnormally low levels of calcium in the blood) resulting from disorders of calcium metabolism.

## Submission Summary (Full Text)

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SPECIAL 510(k): Device Modification

ODE Review Memorandum (Decision Making Document is Attached)

To: THE FILE

RE: DOCUMENT NUMBER k060348

Scantibodies Total Intact PTH ImmunoChemiluminoMetric (ICMA) Assay

This 510(k) submission contains information/data on modifications made to the SUBMITTER'S own Class II, Class III or Class I devices requiring 510(k). The following items are present and acceptable (delete/add items as necessary):

1. The name and 510(k) number of the SUBMITTER'S previously cleared device. (For a preamendments device, a statement to this effect has been provided.) k051150
2. Submitter's statement that the INDICATION/INTENDED USE of the modified device as described in its labeling HAS NOT CHANGED along with the proposed labeling which includes instructions for use, package labeling, and, if available, advertisements or promotional materials (labeling changes are permitted as long as they do not affect the intended use).
3. A description of the device MODIFICATION(S), including clearly labeled diagrams, engineering drawings, photographs, user's and/or service manuals in sufficient detail to demonstrate that the FUNDAMENTAL SCIENTIFIC TECHNOLOGY of the modified device has not changed.

This change was for a recalibration of the calibrators so that the normal range of the Scantibodies Laboratory Total Intact PTH ICMA kit matches the normal range of Scantibodies Total Intact IRMA kit. Since the adjustment factors applied to the calibrators result in slightly different performance characteristic data, all data were re-calibrated and the directional insert was modified accordingly.

4. Comparison Information (similarities and differences) to applicant's legally marketed predicate device including, labeling, intended use, physical characteristics, and performance characteristics.

5. A Design Control Activities Summary which includes:

a) Identification of Risk Analysis method(s) used to assess the impact of the modification on the device and its components, and the results of the analysis. FMEA
b) Based on the Risk Analysis, an identification of the verification and/or validation activities required, including methods or tests used and acceptance criteria to be applied
c) A declaration of conformity with design controls. The declaration of conformity should include:

i) A statement signed by the individual responsible, that, as required by the risk analysis, all verification and validation activities were performed by the designated individual(s) and the results demonstrated that the predetermined acceptance criteria were met, and
ii) A statement signed by the individual responsible, that the manufacturing facility is in conformance with design control procedure requirements as specified in 21 CFR 820.30 and the records are available for review.

6. A Truthful and Accurate Statement, a 510(k) Summary or Statement and the Indications for Use Enclosure (and Class III Summary for Class III devices).

The labeling for this modified subject device has been reviewed to verify that the indication/intended use for the device is unaffected by the modification. In addition, the submitter's description of the particular modification(s) and the comparative information between the modified and unmodified devices demonstrate that the fundamental scientific technology has not changed. The submitter has provided the design control information as specified in The New 510(k) Paradigm and on this basis, I recommend the device be determined substantially equivalent to the previously cleared (or their preamendment) device.

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**Source:** [https://fda.innolitics.com/submissions/CH/subpart-b%E2%80%94clinical-chemistry-test-systems/CEW/K060348](https://fda.innolitics.com/submissions/CH/subpart-b%E2%80%94clinical-chemistry-test-systems/CEW/K060348)

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