Exhibit 10.75
March 28, 1997
Seragen, Inc.
00 Xxxxx Xxxxxx
Xxxxxxxxx, XX 00000
Re: Employment Agreement
Gentlemen:
The undersigned hereby confirms that the term "Change in
Ownership" as defined in the Employment Agreement dated November
6, 1996 between the undersigned and Seragen, Inc. (the "Company")
does not include the sale of the Company's manufacturing and
clinical operations facilities to Boston University or Boston
University's designated affiliate pursuant to the Assets Purchase
Agreement dated as of February 14, 1997 between the Company and
Boston University.
Sincerely yours,
/s/ Xxxxxxxxx X. Xxxx
Xxxxxxxxx X. Xxxx
