PMID: 9179235May 1, 1997Paper

Availability of rhenium-188 from the alumina-based tungsten-188/rhenium-188 generator for preparation of rhenium-188-labeled radiopharmaceuticals for cancer treatment

Anticancer Research
F F KnappH J Biersack

Abstract

Rhenium-188 (beta- = 2.2 MeV; gamma = 155 keV; T1/2 16.9 hours) is an attractive therapeutic radioisotope which is produced from decay of the reactor-produced tungsten-188 parent (T1/2 69 days) and thus conveniently obtained on demand by elution from the alumina-based tungsten-188 /rhenium-188 generator system. The rhenium-188 is obtained as sodium perrhenate by elution of the generator with 0.9% saline. The post elution use of disposable tandem, ion-exchange columns is a simple method for the concentration of rhenium-188 saline solutions with specific volumes > 500 mCi/ml. This method can also extend the useful shelf-life of the generator, which can be as long as one year. The long useful shelf-life of the generator is expected to provide rhenium-188 at very reasonable costs for routine preparation of a variety of radiopharmaceuticals for the treatment of a variety of cancers including breast cancer. We are evaluating two types of Re-188-labeled agents under investigation which have potential for the treatment of breast cancer. Rhenium-188-labeled hydroxyethylidenediphosphonate (HEDP) and Re-188-dimercaptosuccinic acid (DMSA) are being applied for palliative treatment of pain associated with skeletal metastases, and the Re-188...Continue Reading

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