Healthcare Industry News:  Nuvelo 

Biopharmaceuticals FDA

 News Release - January 23, 2006

Nuvelo Receives FDA Fast Track Status for Alfimeprase

SAN CARLOS, Calif., Jan. 23 (HSMN NewsFeed) -- Nuvelo Inc. (Nasdaq: NUVO ) today announced that it has been granted fast track designation by the U.S. Food and Drug Administration (FDA) for its lead product candidate, alfimeprase, for the treatment of acute peripheral arterial occlusion (PAO), or "leg attack." Fast track designation, which was mandated by the FDA Modernization Act of 1997, can potentially facilitate development and expedited review of Biologics License Applications (BLA). Fast track designation is reserved for new drugs that demonstrate the potential to address an unmet medical need and are intended for the treatment of a serious or life-threatening condition.

Alfimeprase is currently being studied in Phase 3 clinical trials for the potential treatment of acute PAO and catheter occlusion (CO), and may have utility in a wide range of additional thrombotic-related conditions such as stroke, deep venous thrombosis (DVT) and myocardial infarction. Collectively, these disorders are among the most common causes of death and morbidity in the Western world.

"We recently received a special protocol assessment agreement for NAPA-3, our second pivotal Phase 3 trial in acute PAO. Fast track designation represents a further step in the achievement of our regulatory strategy for alfimeprase," said Ted W. Love, M.D., chairman and chief executive officer of Nuvelo. "With a more defined regulatory path, a Phase 3 program continuing to progress and a strong global commercialization partner in Bayer HealthCare AG, we believe we are progressing toward our goal of bringing this therapy to individuals suffering from clot related disorders."

Alfimeprase in Clinical Trials

Alfimeprase is being studied in an ongoing Phase 3 program known as the NAPA (Novel Arterial Perfusion with alfimeprase) program, for the treatment of acute PAO. The program consists of two overlapping randomized, double-blind, multi-national trials comparing 0.3 mg/kg of alfimeprase versus placebo in a total of 600 patients. The primary endpoint in both trials is avoidance of open vascular surgery within 30 days of treatment. Open vascular surgery includes procedures such as surgical embolectomy, peripheral arterial bypass graft surgery and amputation, but does not include catheter-based procedures such as percutaneous angioplasty or stenting. A variety of secondary endpoints are also being evaluated, including safety endpoints such as the incidence of bleeding, and pharmacoeconomic endpoints such as length of hospital and intensive care unit (ICU) stay. The first trial in this program, NAPA-2, is expected to complete enrollment in the second half of 2006 and the second trial, NAPA-3, is expected to begin enrollment in early 2006.

Alfimeprase is also being studied in an ongoing Phase 3 clinical program known as the SONOMA (Speedy Opening of Non-functional and Occluded catheters with Mini-dose alfimeprase) program, for the treatment of CO. The program consists of two overlapping, multi-national trials. The first trial, SONOMA-2 is an efficacy study comparing 3 mg of alfimeprase versus placebo in 300 patients with occluded central venous catheters, evaluating restoration of function to the catheters at 15 minutes. SONOMA-2 is expected to complete enrollment in the second half of 2006. The second trial, SONOMA-3, will be an open label, single-arm trial evaluating alfimeprase alone in 800 patients. This study's primary endpoint is safety; however efficacy will also be evaluated. SONOMA-3 is expected to begin enrollment in the first half of 2006.

About Leg Attack

Acute PAO, or "leg attack," occurs when arterial blood flow to a lower limb is blocked by a clot. Affecting more than 100,000 people in the United States each year, acute PAO is the result of underlying peripheral arterial disease, in which chronic fatty plaque buildup restricts blood flow and is then complicated by the formation of an acute clot. If blood flow is not restored, leg attack can lead to permanent nerve and muscle damage, gangrene, and in the most severe cases, amputation and death.

Currently, because there are no FDA-approved thrombolytic therapies available to treat acute PAO, off-label use of plasminogen activators often occurs. As noted in published studies, plasminogen activators may require a prolonged infusion averaging 24 to 36 hours in patients with acute PAO, carry the risk of significant bleeding complications and typically require admission to the ICU for the duration of the infusion.

About Alfimeprase

Alfimeprase is an enzyme produced by recombinant DNA technology that rapidly resolves blood clots through a unique mechanism of action; it directly degrades fibrin, a protein that provides the scaffolding for blood clots. In clinical studies to date, alfimeprase has been shown to have the ability to resolve peripheral arterial (e.g. leg) clots within four hours of initiation of dosing and to clear occluded catheters in 15 minutes or less. In addition, its lytic activity is localized to the site of delivery due to its rapid inhibition by alpha-2 macroglobulin, a naturally occurring protein in the blood, as soon as it moves away from the clot and into the general circulation. This clearance mechanism helps focus the thrombolytic activity to the site of delivery and, in clinical testing, appears to minimize bleeding side effects.

About Nuvelo

Nuvelo, Inc. is dedicated to improving the lives of patients through the discovery, development and commercialization of novel drugs for acute cardiovascular and cancer therapy. Nuvelo's development pipeline includes alfimeprase, a direct-acting thrombolytic in Phase 3 clinical trials for the treatment of thrombotic-related disorders; rNAPc2, an anticoagulant that inhibits the factor VIIa and tissue factor complex that is currently in Phase 2 clinical development for acute coronary syndrome and a thrombin inhibiting aptamer. Nuvelo is also progressing its preclinical development candidate, NU206, for the potential treatment of chemotherapy/radiation therapy-induced mucositis. Nuvelo expects to leverage its expertise in secreted proteins and cancer antibody discovery to further expand its pipeline and create additional partnering and licensing opportunities.

Information about Nuvelo is available at our website at or by phoning 650-517-8000.

This press release contains "forward-looking statements" regarding the alfimeprase Phase 3 clinical trial programs to treat patients with PAO and CO, the timing and progress of Nuvelo's Phase 3 programs, the potential improvement or benefit that current and future clinical trial programs may demonstrate, the potential for regulatory approval for alfimeprase, and the numbers of patients who may be eligible for treatment by alfimeprase, which statements are hereby identified as "forward-looking statements" for purposes of the safe harbor provided by the Private Securities Litigation Reform Act of 1995. Such statements are based on our management's current expectations and involve risks and uncertainties. Actual results and performance could differ materially from those projected in the forward looking statements as a result of many factors, including, without limitation, uncertainties relating to drug discovery; 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; the impact of competitive products and technological changes; uncertainties relating to patent protection and uncertainties relating to our ability to obtain funding. These and other factors are identified and described in more detail in Nuvelo filings with the SEC, including without limitation Nuvelo's recent annual report on Form 10-K for the year ended December 31, 2004 and subsequent filings. We disclaim any intent or obligation to update these forward-looking statements.

Source: Nuvelo

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