METHOD FOR PRODUCING A SOLUTION OF A TECHNETIUM-LABELLED ANTIBODY FRAGMENT AND A KIT FOR RADIOLABELLING AN ANTIBODY FRAGMENT

摘要

A rapid and quantitative method for producing a sterile, injectable solution of Tc-99m-labeled monovalent antibody fragment comprises the step of mixing a sterile solution containing a monovalent antibody fragment having at least one free sulfhydryl group, stannous chloride and excess tartrate, at mildly acidic pH, or a sucrose-stabilized lyophilizate of such solution, with a sterile solution of Tc-99m-pertechnetate, whereby substantially quantitative labeling of the antibody fragment with Tc-99m is effected in about 5 minutes at ambient temperature, the resultant sterile solution of Tc-99m-labeled monovalent antibody fragment being suitable for immediate injection into a patient for radioimmunodetection.