Neorx Corporation

D Mark Gleave

Sudhakar Kasina

Steroid receptor analogs having good binding affinity for steroid receptors and &ldquo;binding arms&rdquo; for chelation to metal species such as radionuclides are prepared with all carbon backbones. The analogs very closely approximate the geometries present in natural steroids which are important for effective binding to receptor sites. In addition, metal species binding arms are strategically incorporated into the analog structure in a manner that does not disrupt the analog's receptor binding efficacy. Furthermore, the metal species binding arms may be designed to chelate one or more radionuclides, including radionuclides effective in diagnostic or therapeutic applications. With incorporation of an appropriate steroid receptor binding group, these metal species-bound analogs may be used, for example, to bind androgen receptor sites in the diagnosis or treatment of prostate cancer, or estrogen receptor sites in the diagnosis or treatment of breast and ovarian cancers.

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Seattle, WA, United States of America

D Mark Gleave