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§ 866.5380 Free secretory component immunological test system.

21 CFR 866.5380

Citation21 CFR 866.5380
CorpusDaily eCFR
Displayed edition2026-04-15
Last updated2026-04-15

§ 866.5380 Free secretory component immunological test system.

(a) Identification. A free secretory component immunological test system is a device that consists of the reagents used to measure by immunochemical techniques free secretory component (normally a portion of the secretory IgA antibody molecule) in body fluids. Measurement of free secretory component (protein molecules) aids in the diagnosis or repetitive lung infections and other hypogammaglobulinemic conditions (low antibody levels).

(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 § 866.9.

[47 FR 50823, Nov. 9, 1982, as amended at 63 FR 59227, Nov. 3, 1998]