510(k) K080523

KRONUS BLOCKING ACETYLCHOLINE RECEPTOR AUTOANTIBODY (ACHRAB) RIA ASSAY KIT by Kronus Market Development Associates, Inc. — Product Code NST

Clearance Details

Decision
SESE (Substantially Equivalent)
Decision Date
June 17, 2008
Date Received
February 26, 2008
Clearance Type
Traditional
Expedited Review
No
Third Party Review
No

Device Classification

Device Name
Autoantibodies, Acetylcholine Receptor, Acetylcholine Blocking And Non-Blocking
Device Class
Class II
Regulation Number
866.5660
Review Panel
IM
Submission Type

THE DEVICE IS AN IMMUNOASSAY INDICATED AS AN AID IN THE DIAGNOSIS OF MYASTHENIA GRAVIS, AN AUTOIMMUNE DISEASE CHARACTERIZED BY EXERCISE-INDUCED MUSCLE WEAKNESS TEMPORARILY RELIEVED BY CESSATION OF EXERCISE. AUTOANTIBODY, WHEN PRESENT IN SERUM, INTERFERES WITH THE BINDING OF ACETYLCHOLINE, A NEURAL TRANSMITTER AT THE JUNCTION OF NERVES WITH MUSCLES. AUTOANTIBODY CAN ALSO BIND TO OTHER PORTIONS OF THE ACETYLCHOLINE RECEPTOR WITHOUT INTERFERING WITH ACETYLCHOLINE BINDING. PRESENCE OF AUTOANTIBODY ALONG WITH CLINICAL SIGNS AND SYMPTOMS ARE USUALLY HIGHLY SUGGESTIVE OF MYASTHENIA GRAVIS. ACETYLCHOLINE RECEPTOR AUTOANTIBODY CAN ALSO OCCUR IN THE PRESENCE OF AUTOANTIBODIES TO OTHER BODY SUBSTANCES.