- DDI Pharmaceuticals Inc., Mountain View, Calif., said it signeddefinitive agreements to acquire two companies, InternationalBioClinical Inc. of Portland, Ore., and Bioxytech S.A. of France, forabout 2 million shares and 2.5 million shares, respectively, of DDIstock, which closed Tuesday at $3 per share.- Advanced Tissue Sciences Inc., La Jolla, Calif., said the Departmentof Transportation approved the use of a Skin2 in vitro laboratory testkit as an alternative to live animal testing of potentially corrosivematerials. Skin2 kits contain cultured human tissue.

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