New Data on Genmab and GlaxoSmithKline's Ofatumumab: Phase II Study in Rheumatoid Arthritis to be Presented at EULAR


Summary:  First presentation of data from a Phase II study with ofatumumab      
scheduled for the 2007 Annual European Congress of Rheumatology.                

Copenhagen, Denmark; April 25, 2007 - Genmab A/S (CSE: GEN) announced today that
the results of a Phase II study with ofatumumab (HuMax-CD20 (TM)) in patients   
with rheumatoid arthritis (RA) have been accepted for oral presentation at the  
2007 Annual European Congress of Rheumatology (EULAR).  The oral presentation,  
which will include new results from the double-blind, placebo controlled Phase  
II study with ofatumumab, along with data from the previous interim analysis,   
will be described by Professor Mikkel Østergaard, Department of Rheumatology,   
Copenhagen University Hospital on June 16, 2007.  The abstract for the          
presentation will be available at www.eular.org in mid-May.                     

Genmab A/S and GlaxoSmithKline have a worldwide agreement to co-develop and     
commercialize ofatumumab.                                                       

About the study                                                                 
A total of 226 patients with active RA who have previously failed one or more   
disease-modifying anti-rheumatic drugs (DMARDs) were enrolled in the Phase II   
study.  Patients were randomized to one of 4 treatment groups (300 mg, 700 mg or
1000 mg of ofatumumab or placebo). Patients were permitted to continue therapy  
with stable doses of methotrexate and low dose prednisolone. ACR and EULAR      
responses were assessed in the primary intention-to-treat efficacy population at
24 weeks.                                                                       

About Genmab A/S                                                                
Genmab A/S is a biotechnology company that creates and develops human antibodies
for the treatment of life-threatening and debilitating diseases. Genmab has     
numerous products in development to treat cancer, infectious disease, rheumatoid
arthritis and other inflammatory conditions, and intends to continue assembling 
a broad portfolio of new therapeutic products. In addition, Genmab has developed
UniBody(TM), a new proprietary technology that creates a stable, smaller        
antibody format.  Genmab has operations in Europe and the US. For more          
information about Genmab, visit www.genmab.com.                                 

This press release contains forward looking statements. The words “believe”,    
“expect”, “anticipate”, “intend” and “plan” and similar expressions identify    
forward looking statements. Actual results or performance may differ materially 
from any future results or performance expressed or implied by such statements. 
The important factors that could cause our actual results or performance to     
differ materially include, among others, risks associated with product discovery
and development, uncertainties related to the outcome and conduct of clinical   
trials including unforeseen safety issues, uncertainties related to product     
manufacturing, the lack of market acceptance of our products, our inability to  
manage growth, the competitive environment in relation to our business area and 
markets, our inability to attract and retain suitably qualified personnel, the  
unenforceability or lack of protection of our patents and proprietary rights,   
our relationships with affiliated entities, changes and developments in         
technology which may render our products obsolete, and other factors. Genmab is 
not under an obligation to up-date statements regarding the future following the
publication of this release; nor to confirm such statements in relation to      
actual results, unless this is required by law.                                 

Genmab(R); the Y-shaped Genmab logo(R); HuMax(R); HuMax-CD4(R); HuMax-EGFr(TM); 
HuMax-Inflam(TM); HuMax-CD20(TM); HuMax-TAC(TM); HuMax-HepC(TM), HuMax-CD38(TM);
HuMax-ZP3(TM); and UniBody(TM) are all trademarks of Genmab A/S.                

Contact: Helle Husted, Sr. Director, Investor Relations, T: +45 33 44 77 30, M: 
+45 25 27 47 13, E: hth@genmab.com                                              
                                                                                
Investor News No. 05/2007

Attachments

i05 eular_250407_uk.pdf