NicOx SA Confirms The EMEA Agrees With Its Proposed Naproxcinod Safety Database

SOPHIA ANTIPOLIS, France, Oct. 17 /PRNewswire-FirstCall/ -- NicOx S.A. (Eurolist: NICOX) (http://www.nicox.com) today announced that it has received scientific advice on its proposed phase 3 clinical plan for naproxcinod (HCT 3012) from the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMEA). The CHMP stated that it agrees with NicOx’ pre-approval safety database proposal for naproxcinod, which does not include a long-term cardiovascular safety study. NicOx expects to file a Marketing Authorization Application (MAA) for naproxcinod in Europe during the first quarter of 2009.

Philippe Serrano, Senior Director of Regulatory Affairs at NicOx, commented: “We are very pleased that the European Medicines Agency agrees with our proposed pre-approval safety database for naproxcinod, which conforms with ICH guidelines. We view this as a significant step toward the commercialization of this potentially important treatment option for patients suffering from osteoarthritis.”

Naproxcinod, NicOx’ most advanced product, is in phase 3 development for treating the signs and symptoms of osteoarthritis. Naproxcinod is a unique anti-inflammatory agent and the first compound in the CINOD (COX-inhibiting nitric oxide-donating) class. The development program for naproxcinod is designed to demonstrate that the compound has no detrimental effect on blood pressure and good gastrointestinal safety and tolerability. NicOx aims to establish naproxcinod as the drug-of-choice for osteoarthritis patients.

In the scientific advice provided to NicOx, the CHMP stated that it agrees with the Company’s safety database proposal for naproxcinod. NicOx will collect safety data during the phase 3 trials for naproxcinod (see NOTE 1), providing a pre-approval safety database that satisfies the International Conference on Harmonization (ICH) E1A recommendations. NicOx’ current plans do not include a separate long-term cardiovascular safety study.

The CHMP commented on a number of specific points regarding the assessment of naproxcinod’s efficacy in the phase 3 trials. NicOx is considering these comments and whether any modifications to the currently proposed design of the remaining phase 3 program should be implemented. The Company believes that if any changes are made they will not affect the filing of an MAA for naproxcinod during the first quarter of 2009.

The CHMP feedback highlighted the importance of the blood pressure monitoring program that NicOx is implementing in the phase 3 program (see NOTE 2) and stressed the importance of assessing the incidence of new hypertension and hypotension, in addition to platelet function. The CHMP also confirmed that NicOx’ plan to conduct a predefined pooled analysis on the blood pressure data from the phase 3 trials is appropriate. The non-steroidal anti-inflammatory drugs (NSAIDs) that are currently used to treat the signs and symptoms of osteoarthritis have the propensity to increase blood pressure and interfere with antihypertensive medication. The sustained release of nitric oxide from naproxcinod is expected to endow it with an improved blood pressure profile, compared to NSAIDs, due to the well established role of endothelial nitric oxide in controlling blood pressure.

NOTE 1: NicOx’ global registration plan for naproxcinod consists of three phase 3 efficacy trials, the first of which is ongoing currently in the US in patients with osteoarthritis of the knee (the 301 study), with results expected in the fourth quarter of 2006. This trial is expected to be followed by the initiation of two additional studies in knee and hip osteoarthritis during 2007 (the 302 and 303 studies). These studies are designed to confirm that naproxcinod is as effective as existing anti-inflammatory agents in treating the signs and symptoms of osteoarthritis.

NOTE 2: In addition to confirming the efficacy of naproxcinod, the phase 3 program is designed to show it has no detrimental effect on blood pressure, in contrast to existing anti-inflammatory agents. Patients’ blood pressure is being assessed during each of the phase 3 trials using controlled office blood pressure measurements (OBPMs) during each visit to the treatment center. NicOx plans to conduct a predefined pooled analysis of the blood pressure data from the three studies following the completion of the last trial.

NicOx (Bloomberg: COX:FP, Reuters: NCOX.PA) is a product-driven biopharmaceutical company dedicated to the development of nitric oxide-donating drugs to meet unmet medical needs. NicOx is targeting the therapeutic areas of pain and inflammation and cardio-metabolic disease. Resources are focused on two lead compounds, naproxcinod (formerly HCT 3012), in phase 3 development for the treatment of osteoarthritis, and NCX 4016, in phase 2 for type 2 diabetes.

NicOx has strategic partnerships with some of the world’s leading pharmaceutical companies, including Pfizer Inc and Merck and Co., Inc.

NicOx S.A. is headquartered in Sophia-Antipolis, France, and is a public company listed on the Eurolist of Euronext Paris (segment: Next Economy).

The elements included in this communication may contain forward-looking statements subject to certain risks and uncertainties. Actual results of the company may differ materially from those indicated in the forward-looking statements because of different risks factors described in the company’s document de reference.

NicOx S.A.

CONTACT: Karl Hanks, Manager of Corporate Relations and Market Analysis ofNicOx, +33(0)4-97-24-53-42, hanks@nicox.com; or Investors in the UnitedStates, Lisa Burns, lburns@burnsmc.com, or Laura Siino, lsiino@burnsmc.com,both of Burns McClellan, +1-212-213-0006; or Jonathan Birt,+1-212-850-5634, jbirt@fd-us.com, or Julia Phillips, +44(0)20-7831-3113,julia.phillips@fd.com, both of Financial Dynamics

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