IMMUNOGEN, INC. ANNOUNCES GENENTECH HAS TAKEN FOURTH LICENSE TO USE IMMUNOGEN'S TAP TECHNOLOGY

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ImmunoGen, Inc. (Nasdaq: IMGN) today announced that Genentech (NYSE: DNA) has licensed exclusive rights to use ImmunoGen's Tumor-Activated Prodrug (TAP) technology with therapeutic antibodies to an undisclosed target. This is the fourth such license to be taken by Genentech, which also has licensed exclusive rights to use ImmunoGen's TAP technology with therapeutic antibodies to two other undisclosed targets and to HER2.

Genetic Engineering News (http://www.genengnews.com/news/bnitem.aspx?name=1124739XSL_NEWSML_TO_NEWSML_WEB.xml)