Oxford Glycosciences

Board Changes

Oxford Glycosciences PLC
17 April 2003

Oxford GlycoSciences plc

17 April 2003

Not for release, publication or distribution in, into or from Australia, Canada
or Japan


                                 BOARD CHANGES

OGS announces that Professor Raymond Dwek, Professor Max Burger and Dr Donald
Drakeman have resigned from the Board of the Company and that Peter Allen, John
Slater Peter Nicholls, Ian Nicholson, Jonathan Glenn and Andrew Weir have been
appointed to the Board as non-executive directors, in each case with effect from
17 April 2003.

Peter Allen is a director of Celltech Group plc ('Celltech'), which made a cash
offer for the entire issued ordinary share capital of the Company on 1 March

These changes to the Board reflect the fact that, following posting of the
Celltech Offer Document, Celltech holds a controlling interest in the Company.

In accordance with paragraph 16.4 of the Listing Rules, no further details
regarding, Peter Allen, John Slater, Peter Nicholls, Ian Nicholson, Jonathan
Glenn and Andrew Weir are required to be disclosed under paragraphs 6.F.2(b) to
(g) and 16.4(a).

For further information please contact:

Oxford GlycoSciences Plc                                             +44 (0) 1235 208 000
David Ebsworth, Ph.D., Chief Executive Officer

Goldman Sachs International                                          +44 (0) 20 7774 1000
Michael Hill
Basil Geoghegan
Phil Raper (Corporate Broking)

Financial Dynamics
UK Media and Investors                                               +44 (0) 20 7831 3113
Tim Spratt
Melanie Toyne-Sewell

US Media and Investors                                               +1 212 850 5626
Leslie Wolf-Creutzfeldt
Deborah Ardern Jones

Shareholders can obtain a free copy of this and any other documents filed with
the Securities and Exchange Commission at the SEC's website (www.sec.gov).

This announcement does not constitute an offer to sell or invitation to purchase
any securities or the solicitation of any vote or approval in any jurisdiction.

The release, publication or distribution of this announcement in certain
jurisdictions may be restricted by law and therefore persons in such
jurisdictions into which this announcement is released, published or distributed
should inform themselves about and observe such restrictions.

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