Genmab Announces Partial Clinical Hold on Zalutumumab Studies


Summary:  Genmab announces that the FDA has placed a partial clinical hold on   
zalutumumab clinical trials.                                                    

Copenhagen, Denmark; June 3, 2009 - Genmab A/S (OMX: GEN) announced today that  
the US Food and Drug Administration (FDA) has placed a partial clinical hold on 
zalutumumab clinical studies being conducted under the US Investigational New   
Drug (IND) application, as well as requests for new studies.  The affected      
studies are the Phase II study in patients with head and neck cancer considered 
incurable with standard treatment and the Phase I/II front line study of        
zalutumumab in combination with chemo-radiation.                                

The partial clinical hold does not affect the two ongoing Phase III studies of  
zalutumumab in head and neck cancer or the Phase I/II study of zalutumumab in   
combination with radiotherapy as these are conducted outside the US IND.        
Results from the pivotal Phase III study in refractory head and neck cancer, for
which 264 patients have been recruited to date, are still expected by the end of
2009.                                                                           

A partial clinical hold is a delay or suspension of only part of the clinical   
work requested under an IND.  Under the partial clinical hold on zalutumumab,   
patients already enrolled in the Phase II and Phase I/II studies who are not    
experiencing serious adverse events may continue to receive treatment, however, 
no additional patients may be enrolled.                                         

The FDA has requested an updated analysis of safety data since the company's    
most recent annual report which covered the period through July 29, 2008.       
Genmab is working to respond to the request and expects to make the required    
submission shortly.                                                             

“Genmab is fully committed to working with the FDA to meet their requests for   
additional information and to resume enrollment in the affected zalutumumab     
clinical trials as quickly as possible,” said Lisa N. Drakeman, Ph.D., Chief    
Executive Officer of Genmab.                                                    

About zalutumumab                                                               
Zalutumumab is a high-affinity human antibody that targets the Epidermal Growth 
Factor receptor (EGFr), a molecule found in abundance on the surface of many    
cancer cells, and is a well validated target.  Zalutumumab is in development to 
treat head and neck cancer and has received a Fast Track designation from the   
FDA covering patients with head and neck cancer who have previously failed      
standard therapies.                                                             

About Genmab A/S                                                                
Genmab is a leading international biotechnology company focused on developing   
fully human antibody therapeutics for the potential treatment of cancer.        
Genmab's world class discovery, development and manufacturing teams are using   
cutting-edge technology to create and develop products to address unmet medical 
needs.  Our primary goal is to improve 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 Stock Exchange 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 Stock Exchange Release nor to confirm such   
statements in relation to actual results, unless required by law.               

Genmab(R); the Y-shaped Genmab logo(R); HuMax(R); HuMax-CD20(R); HuMax-EGFr(TM);
HuMax-IL8(TM); HuMax-TAC(TM); HuMax-HepC(TM); HuMax-CD38(TM); HuMax-CD32b(TM);  
HuMax-TF(TM); HuMax-Her2(TM); HuMax-VEGF(TM) and UniBody(R) are all trademarks  
of Genmab A/S. Arzerra(TM) is a trademark of GlaxoSmithKline.                   

Contact: Helle Husted, Vice President, Investor Relations, T: +45 33 44 77 30,  
M: +45 25 27 47 13, E: h.husted@genmab.com                                      
                                                                                
Stock Exchange Release no. 19/2009                                              

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19_zalutumumabhold_030609_uk.pdf
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