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Guidance for Industry In Vitro Diagnostic Sodium Test
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Document issued on: July 6, 1998
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U.S. Department Of Health And Human Services Food and Drug Administration Center for Devices and Radiological Health Chemistry Toxicology and Hematology Branch |
Comments and suggestions may be submitted at any time for Agency consideration to, Joseph L. Hackett, Ph.D., Division of Clinical Laboratory Devices, HFZ-440, 9200 Corporate Blvd, Rockville, MD 20850. Comments may not be acted upon by the Agency until the document is next revised or updated. For questions regarding the use or interpretation of this guidance contact Joseph L. Hackett, Ph.D., at 301 594-3084.
World Wide Web/CDRH home page: http://www.fda.gov/cdrh, or CDRH Facts on Demand at 1-800-899-0381 or 301-827-0111, specify number 1109 when prompted for the document shelf number.
Guidance Document
Device: In Vitro Diagnostic Sodium Test System
Common Name (s): Sodium Test System
Class: II
Classification Panel: Clinical Chemistry (75)
Product Codes:
Regulation numbers,: 21 CFR 862.1665
A sodium test system is a device intended to measure sodium quantitatively in serum, plasma, and urine.
Measurements obtained by this device are used in the diagnosis and treatment of aldosteronism (excessive secretion of the hormone aldosterone), diabetes insipidus (chronic excretion of large amounts of dilute urine, accompanied by extreme thirst), adrenal hypertension, Addison's disease (caused by destruction of the adrenal glands), dehydration, inappropriate antidiuretic hormone secretion, or other diseases involving electrolyte imbalance.
The intended patient population may be adult, pediatric, and neonatal, while the environment of use may be a hospital (e.g., respiratory care or laboratory department), urgent care situations (e.g., intensive care unit, surgery, emergency department), or bedside/near patient care situations.
The following eight performance characteristics (#1 Method Comparison - #8 Expected Values) should be included in the submission. Data should be provided that supports the use of the device with the specimen type(s) that are claimed to be appropriate for analysis:
A method comparison study as described above, comparing performance with that of the predicate device as well as an appropriate reference method should be conducted to demonstrate substantial equivalence. A statistically significant sample of patients from a population representing the proposed intended use should be included in the study, spanning the appropriate assay range.
Refer to 21 CFR 809.10. Other: For a multi-purpose instrument used for diagnostic purposes refer to 21 CFR 809.10 (b) (1),(2),(6),(14),and (15).
Checklist
Instructions: Use this checklist for premarket notification for Sodium Test System as a guide in preparing your submission.
Truthful and Accurate statement verbatim as per 21 CFR 807.87(j). |
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510(k) summary or statement per 21 CFR 807.92 or 21 CFR 807.93 respectively. |
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Indications for use on a separate page. |
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Labeling for in vitro diagnostic products (21 CFR 809.10 (b) |
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Pre-Clinical Data: | |
Interference Studies |
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Linearity Studies |
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Precision studies at medical decision levels |
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Clinical Data (method comparison) |
REFERENCES:
Methodologies to assist sponsors in establishing the specific performance characteristics addressed in part III of this document may be obtained using NCCLS documents or one of the following references:
Carey RN and Garber CC: Evaluation of Methods in Clinical Chemistry - theory, analysis, and correlation; Kaplan LA and Pesce AJ (eds), CV Mosby Company, St. Louis, 1984.
Koch DD and Peters T: Selection and Evaluation of Methods in Tietz Textbook of Clinical Chemistry (Burtis CA and Ashwood ER, WKB Saunders Co, Philadelphia, 1994.
Uploaded on August 11, 1998
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