Enzyme Triggered Membranes for Colonic Drug Delivery

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: 1 R43 DK48191-1,
Agency Tracking Number: 25028
Amount: $746,098.00
Phase: Phase II
Program: SBIR
Awards Year: 1996
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Bend Research, Inc.
64550 Research Road, Bend, OR, 97701
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Kelly Smith
 (503) 382-4100
Business Contact
Phone: () -
Research Institution
This program will demonstrate the feasibility of a new type of enzyme-triggered release forcolon-specific drug delivery. The key to the new technology is the use of novel enzyme-sensitivemembranes coated onto small drug particles, which should allow control over both the time and site ofdrug delivery. This approach should result in reproducible drug delivery to the colon for either localtreatment of colonic diseases or systemic treatment of a number of conditions. Specific goals in PhaseI include identification of suitable enzyme substrates, development of membrane coatings for smallparticles, and demonstration of enzyme-triggered drug release at predictable times. To achieve thesegoals, enzyme substrates and flat-sheet membranes will be screened for appropriate enzyme activity andtransport properties, and then drug beads will be coated with prototype membranes for in vitroevaluation of enzyme-triggered drug release. If this work is successful, a Phase II program will befocused on further development of the technology and in vivo demonstration of site-specific drugdelivery.

* information listed above is at the time of submission.

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