�Nuvelo,  Inc.  
(Nasdaq:  NUVO)  announced plus results from the Phase  1b 
proof-of-concept trial of NU172,  demonstrating that the direct thrombin 
inhibitor chop-chop produced and maintained anticoagulation with a rapid 
retort toward baseline after the infusion terminated with a favorable base hit 
profile.    
"NU172  has the potential to address many of the limitations of                  
currently available anticoagulants apt the profile we have seen to date 
in preclinical and Phase  1 testing, including its power to produce rapid           
and predictable oncoming and offset of anticoagulation without the need for an 
antidote, its potentiality ability to work in stagnant rake, its                      
predominately non-renal headroom, and the option to stop and restart 
anticoagulation as requisite during or after surgery," said A.  Michael                
Lincoff,  M.D.,  vice chairman of the department of cardiovascular medicine 
and an interventional cardiologist at the Cleveland  Clinic.  "Because  of 
these characteristics, NU172  could potentially offer an improved overture 
to anticoagulation for procedures such as coronary artery bypass graft 
(CABG)  surgical operation, kidney dialysis, and transcutaneous coronary intervention 
(PCI)."     
The  single-center, Phase  1b test examined the safety, tolerability and            
pharmacokinetics of intravenous bolus asset infusion dosing of NU172,  in 24 
healthy male volunteers. Volunteers  were disposed a 2 mg/kg bolus dose 
followed by escalating infusion doses of NU172  for four hours. In  all quadruplet 
cohorts, NU172  produced dose-dependent increases in anticoagulation, 
metrical by activated clotting clip (ACT),  factor II time (PT)  and 
activated partial thromboplastin time (aPTT).  The  highest infusion dosage         
rate tested, 6.0 mg/kg/hr, resulted in an average ACT  per national ranging 
from 373 to 414 seconds and an increase of approximately iII times           
baseline. Average  PT  values per subject ranged from 56 to 92 seconds and 
had an increase of approximately pentad times baseline. Average  aPTT  values 
per subject ranged from one hundred thirty to 178 seconds and had an increase of                  
approximately five times baseline. All  measurements were retained stably 
end-to-end the four-hour infusion. Once  the infusion ended, the ACT  and 
other curdling parameters showed a rapid return toward baseline,            
logical with the short plasma half-life of NU172  ascertained in the Phase  
1a trial. In  addition, NU172  was well-tolerated with no serious adverse 
events.    
"In  this written report, we were able to identify a dose that meets or exceeds 
the level of anticoagulation requisite for the indications we plan to 
evaluate, including CABG  surgery," said Dr.  Ted  W.  Love,  president and headman 
executive officeholder of Nuvelo.  "In  summation to encouraging our previous                    
proof-of-concept information, the Phase  1b discipline shows that anticoagulation with 
NU172  lav be retained for foursome hours, which is yearner than a typical CABG  
procedure. We  are on track to launch a Phase  2 study evaluating NU172  in 
the fourth quarter of 2008 or the first quarter of 2009."    
Approximately  450,000 CABG  procedures, 50 one thousand thousand dialysis procedures, 
and 1.2 billion PCIs  are performed each year in the U.S.  During  these        
procedures, anticoagulants ar given to prevent blood clotting. In  CABG  
procedures and often in dialysis, the anticoagulation effect of heparin           
must be transposed with protamine once the procedure has been completed.
About  Aptamers  and NU172     Aptamers  are chemically synthesized single-stranded nucleic acids that 
form well-defined three-dimensional shapes, allowing them to bind target area 
molecules in a manner that is conceptually alike to antibodies.            
Characteristics  of aptamers include high specificity and affinity, and the 
ability to target protein-protein interactions.    
NU172  is an aptamer intentional to straight inhibit thrombin's ability to         
stimulate blood clot formation in the setting of medical procedures where 
human blood is exposed to foreign materials. Specifically,  NU172  is being 
studied for use as a potency short-acting anticoagulant medication during procedures 
such as coronary artery bypass transplant surgery, kidney dialysis and        
percutaneous coronary interventions. Data  from the Phase  1 trial and          
preclinical studies suggest that NU172  has the voltage to get rapid 
and predictable onset and offset of anticoagulation, work in stagnant 
blood, avoid thrombopenia, and has the potency for non-renal 
clearance.
About  Nuvelo  and Archemix's  Joint  Collaborative  Effort     In  August  2006, Nuvelo  expanded its collaborationism with Archemix  to                    
acquire and market aptamers that have a short-acting anticoagulant 
effect. Under  the understanding, Archemix  is responsible for discovery of 
short-acting aptamers for use in medical procedures, and Nuvelo  leads 
development and worldwide commercialisation of these aptamers.
About  Nuvelo     Nuvelo,  Inc.  is dedicated to improving the lives of patients through 
the discovery, developing and commercialization of novel drugs for acute 
cardiovascular disease, malignant neoplastic disease and other debilitating medical conditions. 
Nuvelo's  development line includes NU172,  a direct thrombin inhibitor 
which has completed Phase  1 development for use as a potential short-acting 
anticoagulant during medical or surgical procedures; and NU206,  a Wnt  
pathway modulator in Phase  1 exploitation for the potential discussion of 
chemotherapy/radiation therapy-induced mucositis and incitive bowel 
disease. In  addition, Nuvelo  is pursuing enquiry programs in leukemia and 
lymphoma therapeutic antibodies and Wnt  signal pathway therapeutics to 
further expand its pipeline and create additional partnering and licensing 
opportunities.    
This  press release contains "forward-looking statements," which include 
statements regarding the timing, progress and anticipated completion of 
Nuvelo's  clinical stage and research programs, and the potential benefits 
that patients crataegus oxycantha experience from the use of our clinical stage compounds, 
which statements ar hereby identified as "advanced statements" for 
purposes of the safe harbor provided by the Private  Securities  Litigation                
Reform  Act  of 1995. Such  statements ar based on our management's current 
expectations and involve risks and uncertainties. Actual  results and 
performance could differ materially from those projected in the                       
modern statements as a result of many factors, including, without 
restriction, uncertainties relating to drug discovery and the regulatory 
approval treat; clinical development processes; enrollment rates for 
patients in our clinical trials; changes in relationships with strategic          
partners and dependence upon strategic partners for the performance of 
critical activities under collaborative agreements; and the shock of                      
competitory products and technological changes. These  and other factors are 
identified and described in more detail in Nuvelo's  filings with the SEC,  
including without restriction Nuvelo's  quarterly report on Form  10-Q  for the        
quarter all over June  30, 2008 and subsequent filings. We  disclaim any spirit 
or certificate of indebtedness to update these advanced statements.   
Nuvelo,  Inc.
http://www.nuvelo.com
More  information