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Method of detecting cytopenia that is mediated by drug-dependent antibody binding to blood cells

  • US 5,585,243 A
  • Filed: 09/15/1993
  • Issued: 12/17/1996
  • Est. Priority Date: 09/15/1993
  • Status: Expired due to Fees
First Claim
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1. A method of detecting drug-dependent antibodies in a patient, wherein a drug or a metabolite of said drug is suspected of inducing thrombocytopenia, said method comprising:

  • (i) separately incubating human platelets or platelet membrane protein derived from said human platelets with a serum or plasma sample from said patient, and a reagent drug or drug metabolite solution or a buffer solution, said drug or said metabolite of said drug being solubilized in said buffer solution to form said reagent drug or drug metabolite solution, said incubation being affected at a temperature and for a time sufficient to form complexes of (1) said drug or said metabolite, (2) said platelets or said platelet membrane protein, and (3) any of said drug-dependent antibodies in said serum or plasma, to form respective test and control reaction solutions; and

    ,(ii) immunologically determining the amount of antibody bound to said platelets or said platelet membrane protein in said test and control reaction solutions;

    wherein said drug-dependent antibodies are present when the amount of bound antibody is greater in the test reaction solution than in the control reaction solution; and

    wherein said drug or said metabolite is selected from the group consisting of acetazolamide, actinomycin, allopurinol, allylisopropylacetylurea, allylisopropylbarbiturate, alpha methyldopa, amiodarone, amphotericin B, ampicillin, amrinon, antazoline, antipyrine, apalcillin, benoxaprofen, bleomycin, butabarbitone, butoconazole, captopril, carbamazepine, carbenicillin, ceftazidine, ceftriazone, centalum, cephalexin, cephalothin, cephamandole, chenodeoxycholic acid, chlordiazepoxide, chloroquine, chlorothiazide, chlorpheniramine, chlorpropamide, chlorthalidone, cimetidine, clarithromycin, clometacine, clonazepam, clopamide, cloxacillin, cocaine, cyclophosphamide, cyclosporine A, danazol, desferrioxamine, diatrizoate, diazepam, diazoxide, diclofenac, didanosine, difluoromethylornithine, digitalis, digitoxin, digoxin, diltiazem, disulfiram, doxepin, ethambutol, etretinate, famotidine, fenoprofen, flavone-8-acetic acid, fluconazole, fluphenazine, furosemide, fusidic acid, gentamicin, glibenclamide, glymidine, haloperidol, heroin, hydrochlorothiazide, hydroxychloroquine, hydroxyquinoline, ibuprofen, imipramine, indomethacin, interferon, iocetamic acid, iopanoic acid, isoniazid, isotretinoin (vitamin A), L-dopa aminoglutethimide, levamisole, levodopa, lidocaine, lincomycin, lithium salts, meclofenamate, meprobamate, methazolamide, methicillin, methotrimeprazine, methylchlorothiazide, methylphenidate, mexiletine, mezlocillin, mianserin, minoxidil, morphine, moxalactam, N-acetylsulfanilamide sodium, nalidizic acid, naproxen, nifedipine, nimesulfide, nitrofurantoin, nitroglycerin, nomifensine, noramiopyrine, norfloxacin, novobiocin, octreotide acetate, odansetron, oxprenolol, oxyphenbutazone, oxytetracycline, p-aminosalicylate, paramethadione, penicillamine, pentagastrin, pentamidine, pentosan polysulfate, a phenothiazine, phenylbutazone, phenytoin, phthalazinol, phthalysulfathiazole, piperacillin, piperazine, piroxicam, plicamycin, polyurethane, primidone, procainamide, prochlorperazine, propranolol, propylthiouracil, ranitidine, simvastatin, sodium salicylate, spiramycin, spironolactone, stibogluconate, streptomycin, succinylsufathiazole, sulfadimethoxine, sulfaguanidine, sulfamerazine, sulfamethizole, sulfamethoxypyridazine, sulfanilamide, sulfasalazine, sulfathiazole, sulindac, suramin, thioguanin, thiomerazol, thiouracil, ticlopidine, tienilic acid, tobramycin, tolbutamide, tolmetin, trimethoprim, valproic acid and metabolites thereof.

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