IMMUNEX ADOPTS TAKEOVER DEFENSEDirectors of Immunex Corp. of Seattle on Thursday adopted a"poison pill" stockholder rights plan designed to prevent ahostile takeover, which it said was not in response to anyoverture.

"We're one of the last top-tier biotech companies to do it," saidspokesman Jason Rubin. The plans would be triggered by aninvestor acquiring 15 percent of Immunex's outstanding stock.Stockholders would receive rights to purchase shares of a newclass of preferred stock at a substantial discount.

LIFE GAINS ACCESS TO DANISH MARKET

Life Technologies Inc. of Gaithersburg, Md., said it completedthe purchase of certain assets of Tecnunc A/S of Denmark fromBTR Industries Ltd. The $1.5 million purchase gives Life Techaccess to the Danish life sciences market.

ROBERTS ACQUIRES I.V. THERAPY ASSOCIATES

Roberts Pharmaceutical Corp. (NASDAQ:RPCX) of Eatontown, N.J.,said it completed an agreement to acquire for an undisclosedamount of stock I.V. Therapy Associates (IVT) of Charleston,S.C., which provides home infusion therapy in the Southeast.

APPOINTMENTS AND ADVANCEMENTS

IBRD, MACRONEX NAME EXECUTIVE VPS ...

Kuraya Pharmaceutical Ltd. said it promoted Thomas B. Semlerto executive vice president and chief financial officer of itsrecently acquired Institute for Biological Research andDevelopment (IBRD) Inc. of Irvine, Calif. Semler had beenIBRD's executive VP of systems and acting CFO. ...

MacroNex Inc. of Durham, N.C., which is developing novelmacrophage-based drugs, named George Cianciolo, Ph.D.,executive vice president of research and development. He wasVP of pharmacology at Sphinx Pharmaceuticals. ...

Pfizer Inc. of New York said it plans to rename an academicchair it endows at the Massachusetts Institute of Technology tohonor Gerald D. Laubach, an MIT alumni who is retiring todayafter 40 years in Pfizer research. ... The 1991 American HeartAssociation-Genentech Clinician Scientist Award inThrombolysis goes to Dr. William Parsons of Duke Universityand Dr. Stephen Hempel of the University of Iowa.

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