PROLOR Biotech Awarded Two U.S. Patents for Its Longer-Acting Human Growth Hormone and Longer-Acting Eryt...( PROLOR is using the same CTP technolo...)

PROLOR is using the same CTP technology to extend the duration of action of other therapeutic proteins. CTP was discovered at Washington University in St. Louis, which has exclusively licensed rights for the use of CTP with all therapeutic proteins to PROLOR, with the exception of four endocrine hormones licensed to Schering-Plough. PROLOR plans to initiate human clinical trials with hGH-CTP, its longer-acting version of human growth hormone, later this year.

The issue date for U.S. Patents 7,553,940 (hGH-CTP) and 7,553,941 (EPO-CTP) is June 30, 2009.

ABOUT PROLOR BIOTECH

PROLOR Biotech, Inc. is a biopharmaceutical company applying its patented CTP technology to develop longer-acting, proprietary versions of already approved therapeutic proteins that currently generate billions of dollars in annual global sales. The CTP technology is applicable to virtually all proteins and PROLOR is currently developing long-acting versions of human growth hormone, interferon beta and erythropoietin, which are in late preclinical development, as well as GLP-1. For more information on PROLOR, visit http://www.modigeneinc.com.

Safe Harbor Statement: This press release contains forward-looking statements, including statements regarding the results of current studies and preclinical experiments and the effectiveness of PROLOR's long-acting protein programs, which are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Investors are cautioned that forward-looking statements involve risks and uncertainties that may affect PROLOR's business and prospects, including the risks that PROLOR may not succeed in developing any commercial products based upon its long-acting protein technology, including any long-acting versions of
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