Genmab Announces Upcoming Ofatumumab Studies


Front Line CLL, NHL and CLL Retreatment and Japanese Development Studies Planned

Genmab has announced plans to begin four studies of ofatumumab in chronic       
lymphocytic leukemia and non-Hodgkin's lymphoma.                                

Copenhagen, Denmark; August 25, 2008 - Genmab A/S (OMX: GEN) announced today    
plans to begin four studies of ofatumumab in chronic lymphocytic leukemia (CLL) 
and follicular non-Hodgkin's lymphoma (NHL) this year.                          

“Genmab and GSK have worked diligently to expand the ofatumumab development     
program to maximize the value of the antibody for patients and shareholders     
since our collaboration began,” said Lisa N. Drakeman, Ph.D., Chief Executive   
Officer of Genmab.  “The new studies we are initiating this year will examine   
the potential of ofatumumab in Japan as well as a number of new treatment       
settings - retreatment, maintenance and front line with chlorambucil.”          

Phase III CLL front line chlorambucil combination                               
This open-label, parallel-arm study will include 444 patients with previously   
untreated CLL.  Patients in the study will be randomized to receive ofatumumab  
in combination with chlorambucil or chlorambucil alone.  Patients receiving     
ofatumumab in combination with chlorambucil will receive one infusion of        
ofatumumab at 300 mg, one infusion at 1000 mg a week later, followed by up to 11
monthly infusions at 1000 mg.  Patients will be evaluated for disease status one
month following last treatment then every 3 months for 5 years.                 

The primary objective of the study is to evaluate the progression free survival 
of ofatumumab in combination with chlorambucil therapy versus chlorambucil      
therapy alone for the treatment of front line CLL.                              

Phase II CLL ofatumumab retreatment and maintenance treatment study             
This study will examine the retreatment and maintenance treatment of refractory 
CLL patients who participated in the ongoing Phase III CLL study and had disease
progression following at least an objective response or stable disease during a 
24 week treatment period of ofatumumab.  Eligible patients will receive one     
infusion of ofatumumab at 300 mg followed by 7 once weekly infusions at 2000 mg.
Maintenance treatment will consist of 24 once monthly infusions of 2000 mg of   
ofatumumab.  The primary objective of this study is to estimate the proportion  
of objective responses over 52 weeks.                                           

Phase II NHL ofatumumab retreatment and maintenance study                       
This study will examine the retreatment and maintenance treatment of refractory 
follicular NHL patients who participated in the ongoing Phase III NHL study and 
had disease progression following at least 6 months objective response to or    
stable disease on ofatumumab.  Eligible patients will receive one infusion of   
ofatumumab at 300 mg followed by 7 once weekly infusions at 1000 mg.            
Maintenance treatment will consist of one 1000 mg infusion every two months for 
two years.  The primary objective of this study is to evaluate the safety of    
ofatumumab retreatment and maintenance treatment.                               

Phase I study in Japan                                                          
This open-label study will include a maximum of 12 patients with                
relapsed/refractory follicular NHL and at least 1 CLL patient who will be       
divided into 2 cohorts of 3 or 6 patients each.  Patients will receive one      
infusion of ofatumumab at 300 mg followed by seven weekly infusions of 500 or   
1000 mg of ofatumumab.  Safety at the 500 mg dose level of ofatumumab will be   
examined before progressing to the 1000 mg dose level.  The primary objective of
the study is to evaluate the safety and tolerability of ofatumumab in Japanese  
relapsed/refractory follicular NHL and CLL patients.  The primary endpoint of   
the study is safety.                                                            

Ofatumumab is an investigational new generation human monoclonal antibody that  
targets a distinct, membrane proximal, small loop epitope (specific antibody    
binding site) of the CD20 molecule on B cells. Ofatumumab is being developed to 
treat chronic lymphocytic leukemia, follicular non-Hodgkin's lymphoma, diffuse  
large B-cell lymphoma, rheumatoid arthritis and relapsing remitting Multiple    
Sclerosis under a co-development and commercialization agreement between Genmab 
and GlaxoSmithKline. It is not yet approved in any country.                     

About Genmab A/S                                                                
Genmab is a leading international biotechnology company focused on developing   
fully human antibody therapeutics for unmet medical needs.  Using cutting-edge  
antibody technology, Genmab's world class discovery, development and            
manufacturing teams have created and developed an extensive pipeline of products
for potential treatment of a variety of diseases including cancer and autoimmune
disorders.  As Genmab advances towards a commercial future, we remain committed 
to our primary goal of improving the lives of patients who are in urgent need of
new treatment options.  For more information on Genmab's products and           
technology, 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. For a     
further discussion of these risks, please refer to the section “Risk Management”
in Genmab's Annual Report, which is available on www.genmab.com.  Genmab does   
not undertake any obligation to update or revise forward looking statements in  
this press release nor to confirm such statements in relation to actual results,
unless required by law.                                                         

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Contact: Helle Husted, Sr. Director, Investor Relations, T: +45 33 44 77 30, M: 
+45 25 27 47 13, E: hth@genmab.com                                              
                                                                                
Stock Exchange Release no. 36/2008                                              

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36_upcoming ofatumumab studies_uk_250808.pdf