---------- Forwarded message ----------

Seattle Genetics In-licenses Anti-CD33 Antibody Program from Protein Design
Labs

BOTHELL, Wash.--(BUSINESS WIRE)--April 13, 2005--Seattle Genetics, Inc.
(Nasdaq:SGEN) announced today that it has entered into a license agreement
with Protein Design Labs, Inc. (PDL) (Nasdaq:PDLI) for exclusive rights to
PDL's anti-CD33 program for both unconjugated antibody and antibody-drug
conjugate (ADC) applications.

"This program provides an immediate addition to our preclinical product
pipeline and a near-term clinical development opportunity," stated Clay B.
Siegall, Ph.D., President and Chief Executive Officer of Seattle Genetics.
"CD33 is a validated target for cancer therapy, and we intend to explore the
therapeutic potential of both naked antibodies and antibody-drug conjugates
utilizing our second generation ADC technology. We believe that the stable
linkers and potent, cytotoxic drugs utilized in our ADC technology may be
able to overcome two of the major obstacles to anti-CD33 ADC development:
non-targeted toxicity and multidrug resistance (MDR)."

Under the license agreement, Seattle Genetics receives exclusive rights to
PDL's anti-CD33 program and associated U.S. patents and patent applications,
as well as supplies of clinical grade material and a non-exclusive CD33
license under PDL's antibody humanization patents. PDL will receive an
upfront fee, progress-dependent milestone payments and royalties on net
sales of any resulting commercial products. In addition, Seattle Genetics
has agreed to reduce the royalties payable by PDL with respect to a limited
number of products that PDL may develop under the existing ADC collaboration
between the two companies. The companies have also granted each other a
co-development option for second generation anti-CD33 antibodies with
improved therapeutic characteristics developed by either party. Further
financial terms were not disclosed.

The CD33 antigen is expressed on a number of hematologic malignancies,
including acute myeloid leukemia (AML), chronic myeloid leukemia (CML),
myelodysplastic syndrome and several myeloproliferative disorders. Because
of its limited expression on normal cells, both unconjugated antibodies with
effector function and ADCs have therapeutic potential in these diseases.

About Seattle Genetics

Seattle Genetics discovers and develops monoclonal antibody-based
therapeutics to treat cancer and other human diseases. The company has built
a diverse portfolio of product candidates targeted to many types of cancer,
including three being tested in multiple ongoing clinical trials, SGN-30,
SGN-15 and SGN-40, and four in preclinical development, SGN-35, SGN-70,
SGN-75 and SGN-17/19. The product candidates encompass three platform
technologies: genetically engineered monoclonal antibodies, antibody-drug
conjugates (ADCs) and antibody-directed enzyme prodrug therapy (ADEPT).
Seattle Genetics has developed leading ADC technology comprised of highly
potent synthetic drugs and stable linkers for attaching the drugs to
monoclonal antibodies. The company currently has license agreements for its
ADC technology with Genentech, UCB Celltech, Protein Design Labs, CuraGen
and Bayer and for its ADEPT technology with Genencor International. More
information about Seattle Genetics can be found at www.seattlegenetics.com.

Certain of the statements made in this press release are forward-looking,
such as those, among others, relating to the therapeutic potential of
anti-CD33 products and Seattle Genetics' ADC technology. Actual results or
developments may differ materially from those projected or implied in these
forward-looking statements. Factors that may cause such a difference include
risks related to adverse clinical results as our product candidates move
into and advance in clinical trials, risks inherent in early stage
development and failure by Seattle Genetics to secure or maintain
relationships with collaborators. More information about the risks and
uncertainties faced by Seattle Genetics is contained in the Company's
filings with the Securities and Exchange Commission. Seattle Genetics
disclaims any intention or obligation to update or revise any
forward-looking statements, whether as a result of new information, future
events or otherwise.


------------------------ Yahoo! Groups Sponsor --------------------~--> 
In low income neighborhoods, 84% do not own computers.
At Network for Good, help bridge the Digital Divide!
http://us.click.yahoo.com/V_qgJD/3MnJAA/xGEGAA/8zSolB/TM
--------------------------------------------------------------------~-> 

New! Sign up for local CML support group meetings in your local community at 
http://cml.meetup.com

Apply for Commercial Real Estate loans online and submit your deal to dozens of 
hungry lenders in just minutes. Loan programs for all types of business and 
commercial real estate. Apply anytime at http://realestatezoo.com 

CML (Chronic Myelogenous Leukemia Support List) 
---------------------------------
Part Of CMLHope.Com
An International Community Of CML Patients
For more information: http://cmlhope.com 

Post Message: [email protected] 
Subscribe:  [EMAIL PROTECTED] 
Unsubscribe:  [EMAIL PROTECTED] 
Change To No Mail/Web: [EMAIL PROTECTED] 
Change To Digest: [EMAIL PROTECTED] 
Change To Email: [EMAIL PROTECTED] 
List Help: [EMAIL PROTECTED]  
CML Group Web Site http://groups.yahoo.com/group/CML 
 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/CML/

<*> To unsubscribe from this group, send an email to:
    [EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/
 



Reply via email to