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CombiMatrix Reports Preliminary Quarterly Growth in Prenatal Testing Volumes of 124% for First Quarter

CombiMatrix Corporation

IRVINE, Calif., April 4, 2013 (GLOBE NEWSWIRE) -- CombiMatrix Corporation (Nasdaq:CBMX), a molecular diagnostics company performing DNA-based testing services for developmental disorders and cancer diagnostics, today announced that it expects to report record volumes of prenatal testing in the first quarter ended March 31, 2013. Preliminary quarterly growth rates of 124 percent over the first quarter of 2012 were achieved for billable prenatal tests.

The continued rapid growth in prenatal testing is the result of CombiMatrix's strategic shift in mid-2012 to focus its commercial resources primarily on the prenatal molecular diagnostic testing markets, where the Company believes that chromosomal microarray analysis (CMA) is becoming the standard of care. This strategy is supported by a pair of National Institute of Health-sponsored studies published in the New England Journal of Medicine in late 2012, which favored CMA over traditional karyotyping for genetic prenatal diagnosis and genetic evaluation of stillbirths. Many experts believe that these publications marked the onset of a paradigm shift toward CMA. CombiMatrix is the only publicly-traded company that specializes in CMA.

The Company also announced that it was expanding its technology offerings to continue to capture market share and serve the expanding volumes. By recently incorporating Single Nucleotide Polymorphisms (SNPs) in its array testing, the Company has significantly expanded its ability for studying variations between whole genomes, which is crucial in providing resolution to its customers.

"We have been setting internal growth records since we refocused our commercial strategy, and now we are expanding our lab capabilities to realize our goal of being a best-of-class prenatal technology lab," said CEO Mark McDonough. "With the technologies to match any lab and the focus of our new prenatal strategy, we anticipate continued strong progress throughout 2013 and beyond."

Overall billable testing volumes at the Company, including its de-emphasized oncology segment, were also up strongly in the period, growing 25 percent in the quarter over 2012. CombiMatrix expects to report its operating results in early May, 2013 and file its quarterly report for 2013 on Form 10-Q in mid-May, 2013. The Company will issue a press release and hold an investor conference call to discuss results.

About CombiMatrix Corporation

CombiMatrix Corporation, through its wholly owned subsidiary, CombiMatrix Molecular Diagnostics, Inc. (CMDX), is a molecular diagnostics laboratory which offers DNA-based testing services to the prenatal, pediatric and oncology markets. The Company performs genetic testing utilizing Microarray, FISH, PCR and G-Band Chromosome Analysis. CMDX offers prenatal and pediatric testing services for the detection of abnormalities of genes at the DNA level beyond what can be identified through traditional technologies. CMDX was also the first commercial clinical laboratory in the United States to make comprehensive DNA-based genomic analysis of solid tumors, including breast, colon, lung, prostate and brain tumors, available to oncology patients and medical professionals. Additional information about CMDX is available at www.cmdiagnostics.com or by calling 1-800-710-0624.

Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995

This press release contains forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. These statements are based upon our current expectations, speak only as of the date hereof and are subject to change. All statements, other than statements of historical fact included in this press release, are forward-looking statements. Forward-looking statements can often be identified by words such as "anticipates," "expects," "intends," "plans," "goal," "predicts," "believes," "seeks," "estimates," "may," "will," "should," "would," "could," "potential," "continue," "ongoing," "objective," similar expressions, and variations or negatives of these words and include, but are not limited to, statements regarding the advantages and efficacy of CMA over standard karyotyping, the market momentum for CMA, the impact of our CMA focus on market share, and our preliminary report of prenatal testing volumes. These forward-looking statements are not guarantees of future results and are subject to risks, uncertainties and assumptions that could cause our actual results to differ materially and adversely from those expressed in any forward-looking statement. The risks and uncertainties referred to above include, but are not limited to: the risk that our final reported prenatal testing volumes are different from this preliminary report; market acceptance of CMA as a preferred method over karyotyping; the rate of transition to CMA from karyotyping; our ability to successfully expand the base of our customers and strategic partners, add to the menu of our diagnostic tests in both of our primary markets, develop and introduce new tests and related reports, optimize the reimbursements received for our testing services, and increase operating margins by improving overall productivity and expanding sales volumes; our ability to successfully accelerate sales, allow access to samples earlier in the testing continuum, steadily increase the size of our customer rosters in both developmental medicine and oncology; our ability to attract and retain a qualified sales force; rapid technological change in our markets; changes in demand for our future products; legislative, regulatory and competitive developments; general economic conditions; and various other factors. Further information on potential factors that could affect our financial results is included in our Annual Report on Form 10-K, Quarterly Reports of Form 10-Q, and in other filings with the Securities and Exchange Commission. We undertake no obligation to revise or update publicly any forward-looking statements for any reason, except as required by law.

CONTACT: Company Contact: Mark McDonough President & CEO, CombiMatrix Corporation Tel (949) 753-0624 Investor Relations Contact: John Baldissera BPC Financial Marketing Tel (800) 368-1217 Media Contact: Len Hall VP, Media Relations Allen & Caron Tel (949) 474-4300 len@allencaron.com

Source:CombiMatrix Corporation