EXHIBIT 23.3
[LETTERHEAD OF PENNIE & EDMONDS LLP]
August 7, 2000
Mr. Joseph J. Day, Jr.
Senior Vice President
Planning and Business Development
Celgene Corporation
7 Powder Horn Drive
Warren, NJ 07059
Re: S-4 Registration Statement
Dear Mr. Day:
We consent to the following reference to our firm under the heading
"Experts" in the S-4 Registration Statement ("Prospectus"):
--The statements in this Prospectus that relate to thalidomide U.S.
patent rights licensed from The Rockefeller University and
EntreMed/Children's Medical Center Corporation under the caption "Risk
Factors--The combined company may not be able to protect its
intellectual property" have been reviewed and approved by Pennie &
Edmonds LLP as special patent counsel to Celgene Corporation for these
matters, and are included herein in reliance upon their review and
approval as experts in the United State Patent Law.--
Very truly yours,
/s/ Pennie & Edmonds LLP
Pennie & Edmonds LLP
