Cleared Traditional

K771235 - HTSH RIA HUMAN THYROID HORMONE RIA

K771235 is an FDA 510(k) clearance for HTSH RIA HUMAN THYROID HORMONE RIA, manufactured by Abbott Laboratories. The device is a Class 2 Chemistry device with product code JLW cleared through the Traditional 510(k) pathway after a 23-day FDA review.

K771235 · Abbott Laboratories · Chemistry device
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Aug 1977
Decision
23d
Days
Class 2
Risk

K771235 is an FDA 510(k) clearance for the HTSH RIA HUMAN THYROID HORMONE RIA. Classified as Radioimmunoassay, Thyroid-stimulating Hormone (product code JLW), Class II - Special Controls.

Submitted by Abbott Laboratories (Abbott Park, US). The FDA issued a Cleared decision on August 3, 1977 after a review of 23 days - a notably fast clearance cycle.

This device falls under the Chemistry FDA review panel, regulated under 21 CFR 862.1690 - the FDA in vitro diagnostics and chemistry framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.

View all Abbott Laboratories devices

FDA 510(k) Submission Details - K771235

510(k) Number K771235 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received July 11, 1977
Decision Date August 03, 1977
Days to Decision 23 days
Submission Type Traditional
Review Panel Chemistry (CH)
Summary -
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
65d faster than avg
Panel avg: 88d · This submission: 23d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

JLW Device Classification - Class 2, Special Controls

Product Code JLW Radioimmunoassay, Thyroid-stimulating Hormone
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 862.1690
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Chemistry devices follow this clearance model.

Regulatory Peers - JLW Radioimmunoassay, Thyroid-stimulating Hormone

All 163
Devices cleared under the same product code (JLW) and FDA review panel - the closest regulatory comparables to K771235.
IN VITRO HUMAN TSH RIA TEST
K772109 · Clinical Assays, Inc. · Dec 1977
SERALUTE TSH (RIA)
K771767 · Miles Laboratories, Inc. · Oct 1977
TSH RIA REAGENT SET
K771234 · G.D. Searle and Co. · Oct 1977
TSH RADIOIMMUNOASSAY
K770892 · Kallestad Laboratories, Inc. · Jun 1977
CLASP RIA KIT, HTSH
K770915 · E. R. Squibb & Sons, Inc. · Jun 1977
RIA-DAC TM HTSH KIH
K770604 · Mallinckrodt Critical Care · Apr 1977