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CHELATING AGENTS

Award Information

Agency:
Department of Energy
Branch:
N/A
Award ID:
3430
Program Year/Program:
1986 / SBIR
Agency Tracking Number:
3430
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Pharmos Corporation
2 INNOVATION DR Alachua, FL 32615
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1986
Title: CHELATING AGENTS
Agency: DOE
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

MOST CHELATING AGENTS THAT ARE EFFECTIVE IN DECORPORTATION RADIONUCLIDES FROM PATIENTS EXPOSED TO THEM ARE NOT EFFECTIVE WHEN ADMINISTERED ORALLY. DTPA IS AN EXAMPLE OF ACHELATING AGENT WHICH HAS TO BE GIVEN I.V. ON A DAILY BASIS TO REMOVE EFFECTIVELY PLUTONIUM FROM THE SKELETON AND OTHER SOFT TISSUES. ALTHOUGH VARIOUS LIPOPHILIC CHELATING AGENTS HAVE BEEN SYNTHESIZED, NONE OF THEM HAVE BEEN EFFECTIVE ORALLY, AND DATA ON THEIR ORAL BIOAVAILABILITY HAVE NOT BEENREPORTED. THIS PROPOSAL SEEKS TO IMPROVE THE GASTROINTESTINAL (G.I.) ABSORPTION OF EFFECTIVE CHELATING AGENTS. ACCORDING TO ONE APPROACH, AN ACTIVATED ESTER OF DTPA WILL BE CONSIDERED. SUCH AN ESTER SHOULD DELIVER DTPA ACROSS THE G.I. MEMBRANE AND HYDROLYZE TO DTPA IN THE BLOOD STREAM. THE SECOND APPROACH WILL INVESTIGATE FORMATION OF LIPOPHILIC ION-PAIRS BETWEEN DTPA AND A UNIQUE CATIONIC COMPOUND. THE THIRD APPROACH WILL EXAMINE A LIPOPHILIC AMINOTHIOL CHELATING AGENT, AND COMPARE IT TO A LIPOPHILIC AMIDOTHIOL WHICH IS DESIGNED TO CONVERT TO A POLAR CHELATINGAGENT ONCE IN THE BLOOD. AFTER SYNTHESIS OF THE THREE CHELATING AGENTS, AND DEVELOPMENT OF SUITABLE ANALYTICAL SYSTEMS, STABILITY AND RELEASE OF THE CORRESPONDING POLAR AGENTS WILL BE STUDIED IN BIOLOGICAL MATERIALS IN VITRO. THE ORAL ABSORPTION OF THESE CHELATING AGENTS WILL BE EXAMINED IN THE RAT BY COMPARING BLOOD LEVELS AFTER I.V. ANDORAL TREATMENTS.

Principal Investigator:

Dr. efraim shek
PRINCIPAL INVESTIGATOR
9044621210

Business Contact:

Small Business Information at Submission:

Pharmatec, Inc.
P.o. Box 730 Alachua, FL 32615

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No