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Title: A new clinical prototype tungsten-188/rhenium-188 generator to provide high levels of carrier-free rhenium-188 for radioimmunotherapy (RAIT)

Conference ·
OSTI ID:5360998
; ; ;  [1];  [2]
  1. Oak Ridge National Lab., TN (United States)
  2. Oak Ridge National Lab., TN (United States) Tennessee Technological Univ., Cookeville, TN (United States). Dept. of Chemistry

We have developed an efficient {sup 188}W/{sup 188}Re alumina-based generator to provide carrier-free {sup 188}Re. This {sup 188}Re will be used for direct-labeling of antibodies to be used for both radioimmunodiagnosis and radioimmunotherapy. Previous studies have involved small scale generators (< 10 mCi of {sup 188}W); the goal of the present study was to fabricate and test a clinical prototype generator (170--180 mCi {sup 188}W), an amount chosen to generate 40--75 mCi of {sup 188}Re/day. In order to investigate radiolysis in the alumina-based system, columns either remained in saline at all times ( wet'') or had saline removed by an air stream after isotope elution ( dry''). Wet columns had a 40% yield after 2--3 days in saline, while dry columns had a yield of 60-75% after 2--3 days dry, indicating radiolysis may be decreasing the yield. Dry columns gave an average elution yield of 80--95%. The {sup 188}W/{sup 188}Re system has proven to be useful in providing 100--200 mCi or higher levels of carrier-free {sup 188}Re readily and consistently for labeling antibodies or other agents for therapeutic studies. 9 refs., 2 figs. (MHB)

Research Organization:
Oak Ridge National Lab., TN (United States)
Sponsoring Organization:
USDOE; USDOE, Washington, DC (United States)
DOE Contract Number:
AC05-84OR21400
OSTI ID:
5360998
Report Number(s):
CONF-9109176-1; ON: DE91018853
Resource Relation:
Conference: Annual congress of the European Association of Nuclear Medicine, Vienna (Austria), 1-5 Sep 1991
Country of Publication:
United States
Language:
English