FORM 6

FORM 6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Report of Foreign Private Issuer

Pursuant to Rule 13a - 16 or 15d - 16 of

the Securities Exchange Act of 1934

 

For the month of October,2003

Commission File Number: 1-10817

 

CELLTECH GROUP PLC

(Translation of registrant's name into English)

 

208 Bath Road, Slough, Berkshire SL1 3WE ENGLAND

(Address of principal executive offices)

 

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

 

Form 20-F X      Form 40-F

 

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

 

Yes          No X

 

(If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-________).

 

 

Enclosure: Collaboration with Amgen Inc. dated 28 October 2003

 

Embargoed for release at 7am

28th October 2003

CELLTECH GROUP PLC

CELLTECH ACHIEVES MILESTONE IN
OSTEOPOROSIS COLLABORATION WITH AMGEN

Celltech Group plc (LSE: CCH; NYSE: CLL) today announced the achievement of a milestone in its agreement with Amgen Inc. for the research, development and global commercialisation of novel treatments for osteoporosis using Celltech's proprietary antibody fragment technology, which aims to identify antibody fragments against sclerostin, a protein discovered by Celltech. Sclerostin is involved in the regulation of bone deposition, and it is believed that by inhibiting this protein, bone loss in osteoporosis patients may be reversed. Amgen and Celltech scientists have identified a high-affinity function modifying Celltech antibody for further study, triggering an undisclosed milestone payment to Celltech.

Dr Melanie Lee, Research and Development Director for Celltech, commented: "We are pleased that this innovative programme continues to progress well and with the ability of our SLAM technology to generate high quality, functionally active antibodies against challenging protein targets."

Contacts:          
   
Peter Allen  Deputy CEO and CFO  (44) (0) 1753 534655 
Richard Bungay  Director of Corporate Communications 
   
Jon Coles  Brunswick  (44) (0) 207 404 5959 
Wendel Carson  Brunswick 

Celltech Group plc (LSE: CCH; NYSE: CLL) is one of Europe's largest biotechnology companies, with an innovative development pipeline funded by its profitable, cash-generative pharmaceutical business. Celltech also possesses drug discovery capabilities of exceptional strength, including a leading position in antibody engineering. More details can be found at www.celltechgroup.com

Notes for Editors

Osteoporosis
Osteoporosis is a degenerative bone disease estimated to affect one-third of women aged 60 to 70, and two-thirds of women aged 80 or older. Current treatments primarily halt loss of bone density, but do not reverse the effects of osteoporosis.

Amgen agreement
Key terms of Celltech's agreement with Amgen, announced in May 2002, are as follows: