Sontra Medical Reports Fourth Quarter And Fiscal Year 2005 Results And Business Update

FRANKLIN, Mass., March 16 /PRNewswire-FirstCall/ -- Sontra Medical Corporation announced today financial results for the fourth quarter and fiscal year ended December 31, 2005. For the three months ended December 31, 2005, the net loss applicable to common stockholders was $1,187,000, or $.05 per share, as compared to $1,663,000 or $.08 per share, for the same period in 2004. For the year ended December 31, 2005, the net loss applicable to common stockholders was $5,743,000, or $.26 per share, as compared to $5,774,000, or $.34 per share, in 2004. The Company ended the year with a total of $4,017,000 in cash and short term investments. On March 7, 2006, the Company completed an equity financing that raised $1.6 million. The Company expects that its cash on hand at December 31, 2005, combined with proceeds from the financing completed in March 2006, will be sufficient to fund operations through at least January 2007.

Recent Product Highlights: Continuous Transdermal Glucose Monitoring System * Optimizing performance of telemetry-based glucose flux biosensor and wireless meter. * Designed clinical protocols for hospital intensive care unit (ICU) product; human trials to commence in April 2006. * Developing portable, low cost 3rd Generation SonoPrep(R) skin permeation device for diabetes home testing market. * Achieved ISO 13485 Quality Management System certification for SonoPrep. SonoPrep and Procedure Tray for Topical Lidocaine * Developed low cost topical lidocaine gel for use with SonoPrep procedure tray. * Introduced Generation 1.75 SonoPrep skin permeation device. * Completed 2nd Generation SonoPrep device; commercial launch scheduled for April 2006. Other SonoPrep Product Applications * Formed research alliance with HortResearch for evaluating SonoPrep in sports performance monitoring applications. * Awarded research grant from U.S. Army for SonoPrep enabled transdermal delivery of dengue vaccine.

"We have focused a majority of our resources on optimizing the performance of our continuous transdermal glucose monitor for the hospital ICU market," stated Thomas W. Davison, PhD, Sontra's President and Chief Executive Officer. "The first fully functional transdermal glucose monitors have been built and are functioning as anticipated in in-house clinical tests that will lead to extensive clinical testing in the coming months. We have designed human clinical trials and obtained IRB approvals and expect clinical trials to commence during the second quarter of 2006. Intensive insulin therapy and frequent blood glucose testing to maintain tight glycemic control is one of the most exciting new trends in critical care medicine. The enormous clinical benefits include reducing mortality and severe complications by up to 50%. These benefits, combined with significant cost savings that come from reduced length of stay and less intervention, are expected to create a new market for critical care continuous glucose monitors that we estimate will exceed $1 billion."

Conference Call Information

Sontra will host a live conference call and listen-only Webcast on Thursday, March 16, 2006 at 11 a.m. ET to provide a business update and discuss its fourth quarter and fiscal year 2005 financial results.

To participate in the conference call, please dial: 1-973-409-9259.

A listen-only Webcast and replay of the conference call are available at http://www.sontra.com.

About Sontra Medical Corporation (http://www.sontra.com)

Sontra Medical Corporation is a technology leader in transdermal science. Sontra's SonoPrep ultrasound-mediated skin permeation technology combined with technical competencies in transdermal drug formulation, delivery systems and biosensors is creating a new paradigm in transdermal drug delivery and diagnosis. The SonoPrep technology is being developed for several billion dollar market opportunities, including continuous glucose monitoring and the transdermal delivery of large molecule drugs and vaccines. Sontra is currently marketing the SonoPrep device and procedure tray for use with topical lidocaine to achieve rapid (within five minutes) skin anesthesia.

Investor Relations Contact: Sean Moran, Sontra Medical CFO 508-530-0334

SonoPrep is a registered trademark of Sontra Medical Corporation. All other company, product or service names mentioned herein are the trademarks or registered trademarks of their respective owners.

This press release contains forward-looking statements, which address a variety of subjects including, for example, the expected technological advances and availability of the second-generation SonoPrep device, the expected benefits and efficacy of the SonoPrep device in connection with diagnostics, vaccine delivery, glucose monitoring and transdermal drug delivery, Sontra's expected ability to develop, market and sell products based on its technology, including a continuous transdermal glucose monitor for the hospital ICU market; the expected market opportunities, distribution and market acceptance of the SonoPrep device and technology, the expected size of the market for the continuous transdermal glucose monitor for the hospital ICU; and Sontra's business, research, product development, regulatory approval, marketing and distribution plans and strategies. Statements that are not historical facts, including statements about our beliefs and expectations, are forward-looking statements. Such statements are based on our current expectations and are subject to a number of factors and uncertainties, which could cause actual results to differ materially from those described in the forward-looking statements. The following important factors and uncertainties, among others, could cause actual results to differ materially from those described in these forward-looking statements: our technology is new and we may experience adverse results in research and development efforts, product development, clinical trials, product evaluations, commercialization efforts, product distribution and market acceptance; markets for our products may develop slower than expected, or not at all; our sales cycle is lengthy and we are still developing sales and marketing strategies which may or may not prove effective; the SonoPrep device may not prove effective in connection with diagnostics, vaccine delivery, glucose monitoring and/or transdermal drug delivery; we may experience difficulties or delays in obtaining regulatory approvals to market products resulting from development efforts or difficulties or delays associated with sources of regulatory-approved transdermal drugs and vaccines; failure to obtain and maintain patent protection for discoveries or commercial limitations imposed by patents owned or controlled by third parties would have an adverse effect on us; we depend upon strategic partners and third-party distributors to develop, commercialize, market and sell products based on our work; and we require substantial additional funding to conduct research and development and to expand commercialization, distribution and marketing activities. For detailed information about factors that could cause actual results to differ materially from those described in the forward-looking statements, please refer to Sontra's filings with the Securities and Exchange Commission, including Sontra's most recent Annual Report on Form 10-KSB. Forward-looking statements represent management's current expectations and are inherently uncertain. We do not undertake any obligation to update forward-looking statements made by us.

SONTRA MEDICAL CORPORATION Consolidated Statements of Loss For the Years Ended For the Three Months Ended December 31, December 31, 2005 2004 2005 2004 Revenue: Product revenue $170,660 $33,565 $1,642 $18,811 Licensing revenue 5,000 - 5,000 - Total revenue 175,660 33,565 6,642 18,811 Cost of product revenue 251,482 16,680 5,414 10,356 Gross (loss) profit (75,822) 16,885 1,228 8,455 Operating Expenses: Research and development 3,794,888 3,039,450 851,067 974,665 Selling, general and administrative 2,055,833 2,423,806 374,492 731,845 Total operating expenses 5,850,721 5,463,256 1,225,559 1,706,510 Loss from operations (5,926,543) (5,446,371) (1,224,331) (1,698,055) Other income (expense), net Interest income 207,699 86,189 44,548 36,929 Interest expense (18,292) - (5,483) - Other income, net 189,407 86,189 39,065 36,929 Net loss (5,737,136) (5,360,182) (1,185,266) (1,661,126) Accretion of dividend and beneficial conversion feature on Series A Convertible Preferred Stock (5,867) (413,901) (1,478) (1,449) Net loss applicable to common shareholders $(5,743,003) $(5,774,083) $(1,186,744) $(1,662,575) Net loss per common share, basic and diluted $(0.26) $(0.34) $(0.05) $(0.08) Basic and diluted weighted average common shares outstanding 22,205,025 16,763,798 22,260,449 19,840,477 SONTRA MEDICAL CORPORATION Consolidated Balance Sheets As of December 31, 2005 2004 ASSETS Current Assets: Cash and cash equivalents $1,016,792 $2,565,244 Short term investments 3,000,000 6,950,000 Accounts receivable 1,129 16,821 Legal settlement receivable - 250,000 Inventory, net of reserve for obsolescence 31,250 152,642 Prepaid expenses and other current assets 65,468 69,492 Total current assets 4,114,639 10,004,199 Property and Equipment, at cost: Computer equipment 241,324 206,970 Office and laboratory equipment 593,576 492,377 Furniture and fixtures 14,288 14,288 Manufacturing equipment 224,888 182,210 Leasehold improvements 177,768 174,698 1,251,844 1,070,543 Less-accumulated depreciation and amortization (894,658) (655,242) Net property and equipment 357,186 415,301 Other Assets: Restricted cash 29,248 38,997 Deposits and other assets 207,012 2,000 Total other assets 236,260 40,997 Total assets $4,708,085 $10,460,497 LIABILITIES AND STOCKHOLDERS' EQUITY Current Liabilities: Accounts payable $210,208 $358,530 Deferred revenue 45,000 - Current portion of note payable 53,653 - Accrued expenses 416,936 759,051 Total current liabilities 725,797 1,117,581 Note Payable, net of current portion 149,043 - Commitments Stockholders' Equity: Series A Convertible Preferred Stock, $0.01 par value, authorized 7,000,000 shares, issued and outstanding 73,334 shares at December 31, 2005 and 2004 (preference in liquidation of $76,291) 76,291 76,291 Common stock, $0.01 par value, authorized 60,000,000 shares, issued and outstanding 22,261,830 shares at December 31, 2005 and 21,935,732 shares at December 31, 2004 222,618 219,358 Additional paid-in capital 32,658,192 32,674,740 Deferred stock-based compensation (4,159) (244,912) Accumulated deficit (29,119,697) (23,382,561) Total stockholders' equity 3,833,245 9,342,916 Total liabilities and stockholders' equity $4,708,085 $10,460,497

Sontra Medical Corporation

CONTACT: Sean Moran, CFO of Sontra Medical, +1-508-530-0334

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