Protein Polymer Requests FDA Approval to Initiate Human Clinical Trials of Dermal Augmentation Product

    SAN DIEGO, October 18 -- Protein Polymer Technologies, Inc. (OTC Bulletin Board: PPTI), announced that the Company is requesting authorization from the U.S. Food and Drug Administration to begin human clinical testing of its injectable dermal filler device for the correction of dermal "contour deficiencies" (frown lines, worry lines, wrinkles, crow's feet, facial scars, marionette lines, etc.). Pending FDA approval of the Company's application (formally termed an "Investigational Device Exemption" or IDE), the Company plans to initiate clinical trials later this year.
    In 1998, there were 2.8 million cosmetic facial procedures performed in the U.S. according to the American Academy of Cosmetic Surgery. The principal reason people, both male and female, have such procedures done is to improve their self-image. One popular procedure in the last decade has been the injection of bovine collagen particles to correct dermal "contour deficiencies." The procedure is appealling because it provides a noticeable benefit with little recovery time and minimal risk of adverse effects. All that is required is a quick visit to the physician's office, with resumption of normal activities shortly thereafter. However, acceptance of the products currently available has been less than expected, due primarily to the short term durability of the cosmetic effect.
    PPTI's injectable dermal filler device -- based on one of its patented silk-elastin polymers -- is designed for use by dermatologists and cosmetic surgeons for the treatment of contour deficiencies caused by aging and environmental exposure, disease such as acne and cancer, and surgery. Once injected into the skin, the material irreversibly transforms from a polymer solution to a firm yet pliable hydrogel that can then be further shaped and molded by the physician to create the desired appearance. Prior feasibility studies in animals have shown the product to be effective for contour correction, easy to use, biocompatible, non-immunogenic, resistant to migration, and more durable than collagen-based products.
    Currently, PPTI also is conducting human clinical testing of a urethral bulking agent for the treatment of female stress urinary incontinence based on the same underlying technology.

    Protein Polymer Technologies, Inc. (PPTI), is a San Diego-based company focused on developing products to improve medical and surgical outcomes. From its inception in 1988, PPTI has been a pioneer in protein polymer design and synthesis, developing an extensive portfolio of proprietary biomaterials. These genetically engineered biomaterials are high molecular weight proteins, processed into products with physical and biological characteristics tailored to specific clinical performance requirements. Targeted products in addition to its urethral bulking agent for the treatment of stress urinary incontinence and its dermal filler device for correction of dermal contour deficiencies include tissue adhesives and sealants, scaffolds for wound healing and tissue engineering, and depots for local drug delivery.

This press release may contain forward-looking statements that are based on management's expectations. Actual results could differ materially from those expressed here; further, the Company is not obligated to comment specifically on those differences. Risks associated with the Company's activities include raising adequate capital to This press release may contain forward-looking statements that are based on management's expectations. Actual results could differ materially from those expressed here; further, the Company is not obligated to comment specifically on those differences. Risks associated with the Company's activities include raising adequate capital to continue operations, scientific and product development uncertainties, competitive products and approaches, continuing collaborative partnership interest and funding, regulatory testing and approvals, and manufacturing scale-up. The reader is encouraged to refer to the Company's Annual Report Form 10-KSB, and recent filings with the Securities and Exchange Commission, copies of which are available from the Company, to further ascertain the risks associated with the above statements.