Bioluminescent Immunoassay for Testosterone

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: 1 R43 GM51164-1,
Agency Tracking Number: 25113
Amount: $74,644.00
Phase: Phase I
Program: SBIR
Awards Year: 1994
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
187 Ben Burton Circle, Bogart, GA, 30622
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Charles Rigl
 (404) 729-8800
Business Contact
Phone: () -
Research Institution
Radioimmunoassays make up a significant percentage of the immunoassays used in clinicallaboratories. Nonradioactive, immunometric or "sandwich" assays using enzymes for signal generation(EIAs) have generally replaced radioimmunoassays for high molecular weight analytes. Low molecularweight analytes such as the steroid hormones, however, are measured primarily by competitiveimmunoassays using 125I-labeled haptens as the tracer. We manufacture and sell AquaLiteTM, arecombinant form of the calcium-activated photoprotein aequorin, which has been conjugated tomonoclonal antibodies and used as the signal in sensitive bioluminescent immunometric assays for TSHand Interleukin-6. We will synthesize an AquaLite-labeled testosterone for use in a competitiveimmunoassay format for this steroid hormone. The validation of this bioluminescent assay during thefirst phase of this project will define the feasibility for use of AquaLite as a general replacement of 125Iin competitive immunoassays. The assay will be optimized and compared to currently available assays.Once feasibility is established for the testosterone assay, Phase II of this project will be menu expansionby conversion of additional steroid hormone radioimmunoassays to bioluminescent immunoassays andthe development of an FDA approved clinical diagnostic product line for sale by us.

* Information listed above is at the time of submission. *

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