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MediciNova, Inc. 2010 Statements in this presentation that are not historical in nature constitute forward looking statements within the meaning of the safe harbor provisions of the Private Securities Litigation Reform A

Key Takeaway: Secure a global partnership for MN 166 2. Secure a regional partnership (ex US/Japan rights) for MN 221 Upcoming Clinical Milestones: 1. MN 221 CL 007 Phase II Study for Acute Exacerbations of Asthma Anticipated completion 2H, 2010* 2. MN 166 Study for Opioid Withdrawal Anticipat

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Secure a global partnership for MN 166 2. Secure a regional partnership (ex US/Japan rights) for MN 221 Upcoming Clinical Milestones: 1. MN 221 CL 007 Phase II Study for Acute Exacerbations of Asthma Anticipated completion 2H, 2010* 2. MN 166 Study for Opioid Withdrawal Anticipated completion in mid 2010* Completed Milestones: 1. Completed Avigen merger December 18, 2009 2.
Kirk Johnson, Ph.D. Chief Scientific Officer 20 Avigen, Genesoft Pharmaceuticals, Chiron Corporation Masatsune Okajima, CMA Masatsune Okajima, CMA VP, Head of Japanese Office 18 Daiwa Securities SMBC, Sumitomo Capital Securities, Sumitomo Bank Management Team with Management Team with Global Experience Global Experience Alan Dunton, MD, PhD Alan Dunton, MD, PhD Clinical Development Consultant Board Member 27 CEO of Panacos Metaphore; President of the Janssen Research Foundation, a J J company MediciNova, Inc. 2010 23 Upcoming Near Term Business Milestones: 1.
Glial cell activation contributes to reward and withdrawal aspects of opioids and the development and maintenance of neuropathic pain. This may represent a new pharmocotherapy approach for drug addiction and neuropathic pain. Additional Value from Avigen Additional Value from Avigen Deal Deal MediciNova, Inc. 2010 20 MN 166: Ongoing clinical trial Study Objective: Assess MN 166 safety/tolerability/PK and preliminary efficacy for opiate withdrawal in heroin dependent subjects Ongoing clinical trial run jointly by the New York State Psychiatric Institute and Columbia University in NYC (Investigator IND study; MediciNova is not the sponsor) Trial to enroll ~30 patients (10 completers/cohort) Anticipated completion in mid 2010* MN 166: Opioid MN 166: Opioid Withdrawal Withdrawal Trial Design/Endpoints Week 1 2 3 Treatment Morphine (30 mg QID) and Placebo BID Morphine (30 mg QID) and Placebo BID or 20 mg BID of Ibudilast or 40 mg BID of Ibudilast Placebo BID or 20 mg BID of Ibudilast or 40 mg BID of Ibudilast Endpoints Safety, Tolerability, PK Safety, Tolerability, PK Withdrawal scores, Safety, Tolerability, PK Note: QID refers to taking the medication four times per day; BID refers to taking the medication twice a day *Anticipated completion date based on current projections MediciNova, Inc. 2010 21 Commercially Attractive Commercially Attractive Diversified Portfolio Diversified Portfolio COPD COPD Asthma Asthma MS MS CNS Disorders CNS Disorders MediciNova, Inc. 2010 22 Leadership Years Experience Background Yuichi Iwaki, MD, PhD Yuichi Iwaki, MD, PhD CEO President 34 Professor at USC, formerly Professor at University of Pittsburgh; Advisor to JAFCO, Tanabe Shintaro Asako, CPA Shintaro Asako, CPA Chief Financial Officer 12 KPMG USA (Audit), Arthur Andersen USA Kirk Johnson, Ph.D.
Safety Profile: 89% (264 of 297) of subjects completed the first 12 months of the study 82.5% (245 of 297) of subjects completed the full 24 months of the study Adverse effects reported more frequently in MN 166 treated than placebo treated subjects: GI effects depression Completed Clinical Study: Completed Clinical Study: MN 166 CL 001 MN 166 CL 001 16 MediciNova, Inc. 2010 17 P Value: 0.04 P Value: 0.035 MN 166 CL 001 Study Results MN 166 CL 001 Study Results P Value: 0.026 P Value: 0.004 P Value: 0.0 9 P Value: 0.0 8 Note: P values listed on this slide compare placebo group to 60mg/day group of MN 166 Indicative of Potential Neuroprotective Effect: Reduced brain volume loss Reduced conversion of acute lesions to persistent black holes Sustained disability progression was significantly less likely (~50%) Acute Clinical Benefit: Prolong time to relapse (by 127 days.) Annualized relapse rate Protocol Defined Primary Endpoint (Surrogate Endpoint): No significant reduction in the cumulative number of active (gadolinium enhancing (T1) and non enhancing new/enlarging (T2)) lesions on cranial MRI scans over 12 months of treatment was observed Positive trends were observed in volume of gadolinium enhancing (T1) lesions MediciNova, Inc. 2010 18 MN 166 CL 001: MN 166 CL 001: Efficacy Review (One Year) Efficacy Review (One Year) Endpoints Indicative of Neuroprotective Effect (Chronic aspects of MS): Endpoints Relating to Acute Clinical Benefit: MediciNova, Inc. 2010 19 Value to MediciNova AV411 is now part of MediciNova s MN 166 program; both are ibudilast API and drug product supply 4 completed Phase I and Ib/IIa clinical trials Open IND for ibudilast (Analgesia, Addiction) Clinical preclinical support for MN 166 program; dosing up to 100 mg/day 2 method of use patents issued in 2009; multiple filings in progress Analog compounds behind ibudilast First generation development candidate: AV1013 composition of matter patent issued Second generation dual target leads Opioid Withdrawal Neuropathic Pain Indications Ibudilast is a good glial cell attenuator in vitro and in the central nervous system (CNS) in vivo.
Anticipated completion in 2H, 2010* MN 221 CL 007: MN 221 CL 007: Study Design Study Design 13 Note: Development plans / timelines for MN 221 clinical trials are subject to change *Anticipated completion date based on current projections MediciNova, Inc. 2010 MN 221 CL 010: MN 221 CL 010: Mean Change in FEV Mean Change in FEV 1 1 14 Baseline: 46.7% Baseline: 47.9% Baseline: 46.6% Baseline: 50.31% p = 0.020 p = 0.0025 MediciNova, Inc. 2010 15 MN 166 for Multiple Sclerosis (MS): Oral administration Multiple mechanisms of action, both neuroprotective and anti inflammatory MN 166 targets primarily chronic aspects of MS Benign safety profile Mechanisms of Action: Potentially Neuroprotective Inhibits nitric oxide and reactive oxygen species production Stimulates release of neuronal growth factors Reduces demyelination Anti inflammatory Inhibits PDE s and MIF, leukotriene release, proinflammatory cytokines (TNFa, IL 1b, MCP, IL 6) Can increase IL 10 release Current Standard of Care: Beta interferons (Rebif , Avonex , Betaseron/Betaferon ), Copaxone , Tysabri Primary focus is on acute treatment of MS symptoms (i.e., relapse rate) MN 166 for the Treatment of MN 166 for the Treatment of Multiple Sclerosis Multiple Sclerosis MediciNova, Inc. 2010 Placebo controlled, Randomized, Double blind Phase II Study: Year 1 Placebo, 30 mg/day, 60mg/day Year 2 30 mg/day, 60mg/day 297 patients (~100 patients/group) 25 sites in Serbia, Ukraine, Belarus, Bulgaria and Romania Key Inclusion Criteria: Males or females aged 18 to 55 years, with relapsing remitting (RR) and/or secondary progressive (SP) Multiple Sclerosis with continued relapses; One MRI scan taken two weeks prior to treatment start using a standardized MRI protocol with at least one Gd enhancing lesion; An Expanded Disability Status Scale (EDSS) score of 5.5 or less at the screening and baseline visits.
MN 221 CL 006: MN 221 CL 006: What have we learned? What have we learned? MediciNova, Inc. 2010 Randomized, placebo controlled, double blind, multi center Phase II clinical trial 200 patients with severe, acute exacerbations of asthma (FEV 1 50% predicted) at ~35 Emergency Department sites in US, Canada, Australia, and New Zealand Dose Groups (~100 patients/group): 1,200 g MN 221 over 1 hour (600 g in 15 minutes; 600 g in 45 minutes) Placebo Patients will receive Standard of Care (SOC) treatment in addition to adjunctive treatment with MN 221 or placebo Primary efficacy endpoint will be improvement in FEV 1 (% predicted) at 5 hours The study is designed to have 80% power to detect a treatment difference of 5 percentage points in FEV 1 (% predicted) when comparing MN 221 + SOC to Placebo + SOC at a two sided a level of 0.05.
MediciNova, Inc. 2010 12 What did we learn from the MN 221 CL 006 clinical trial? There were no safety concerns with adding MN 221 to the standard of care. There was a reduction in the hospitalization rate among patients treated with MN 221. Overall, improvement in FEV 1 was greater for patients receiving MN 221 than placebo. A dose of 1,200 g of MN 221 administered over one hour was selected for the MN 221 CL 007 clinical trial.
CL 006, CL 007 located in emergency departments. MediciNova, Inc. 2010 MN 221 CL 004: MN 221 CL 004: Mean Change in FEV Mean Change in FEV 1 1 8 p 0.05 p 0.001 p 0.05 p 0.001 MediciNova, Inc. 2010 MN 221 CL 005: MN 221 CL 005: Mean Change in FEV Mean Change in FEV 1 1 9 Baseline: 64.6% Baseline: 69.4% 1 Hour: 82.0% 2 Hours: 81.5% Baseline: 68.6% Baseline: 68.6% 1 Hour: 70.5% 2 Hours: 71.2% MediciNova, Inc. 2010 MN 221 CL 006 MN 221 CL 006 Mean Change in FEV Mean Change in FEV 1 1 10 Mean change in FEV 1 from baseline was 5.27% higher in the MN 221 dose groups versus the placebo group MediciNova, Inc. 2010 MN 221 CL 006: MN 221 CL 006: Hospitalization Rate by Treatment Group Hospitalization Rate by Treatment Group 11 MN 221 reduced the hospitalization rate by 45% Note: SOC means standard of care.
Improved Efficacy Route of Administration (IV v. Inhalation) 2. Improved Safety Higher selectivity for 2 receptor than 1 42.4 fold 2 selectivity (IC 50 1 / IC 50 2 ) Partial agonist for 1 receptor 3. Reduced Health Care Expenses 6 MN 221: A New Approach to Treating MN 221: A New Approach to Treating Exacerbations of Acute Asthma COPD Exacerbations of Acute Asthma COPD MediciNova, Inc. 2010 MN 221 Clinical Trials MN 221 Clinical Trials 7 Completed Completed Ongoing Ongoing Study Study CL 004 CL 005 CL 006 CL 010 CL 007 Indication Indication Mild to moderate Asthmatics Moderate to Severe Asthmatics Acute Exacerbations of Asthma Moderate to Severe COPD patients Acute Exacerbations of Asthma FEV FEV 1 1 (Entry Criteria) (Entry Criteria) FEV 1 60% 75% FEV 1 40% FEV 1 55% 80% FEV 1 30% FEV 1 50% Number of Number of Patients Patients 23 17 29 48 200 Number of Number of Sites Sites 4 4 8 6 ~35 Doses Tested Doses Tested Compared to Compared to Placebo Placebo 5.25, 15, 52.5, 150, 240, 450, 900 g over 15 min 1080 g over 2 hr; 1,125 g over 1 hr 240, 450 g over 15 min; 1080 g over 2 hr 300, 600, 1200 g over 1 hr 1200 g over 1 hr Note: CL 004, CL 005, CL 010 located in clinical sites.
Emergency Departments in the U.S. 1,900,000 1,900,000 Patients receive standard of care in Emergency Department Positive Response ~51% Continue therapy until patient is discharged Annual number of patients with acute exacerbations of asthma Non Responders ~49% Continue therapy for several hours Patient improves and is discharged Patient is hospitalized No Response 965,000 935,000 935,000 410,000 525,000 525,000 Source: Weber, Silverman et al, American Journal of Medicine, 2002, Volume 113; pp 371 *Patients who could potentially benefit from addition of MN 221 MediciNova, Inc. 2010 MN 221: A novel, highly selective 2 adrenergic receptor agonist Three potential advantages over current therapy: 1.
MediciNova, Inc. **Source: Individual annual reports of leading MS companies, 2008 Source: Internal MediciNova projections MediciNova, Inc. 2010 4 Definition: Acute Asthma Exacerbations: Long lasting and severe asthma episodes that are not responsive to initial bronchodilator or corticosteroid therapies COPD Exacerbations: Sustained worsening of the patient's condition, from the stable state and beyond normal day to day variations, that is acute in onset Market Opportunity: Potential $1 billion+ combined market opportunity worldwide (acute asthma COPD exacerbations) Current Standard of Care (SOC): Beta agonists Inhaled Anticholinergics Inhaled Corticosteroids IV or oral Source: National Center for Health Statistics / CDC, WHO website, Core Health indicators MN 221 for Exacerbations of MN 221 for Exacerbations of Acute Asthma and COPD Acute Asthma and COPD COPD Discharged Hospitalized 72% 28% ~1.9 million Asthma 52% 48% ~1.5 million Hospitalization Rates Amongst Asthma and COPD Patients *Source: Internal MediciNova projections MediciNova, Inc. 2010 5 Acute Asthma Treatment Flow in Acute Asthma Treatment Flow in Emergency Departments in the U.S.
You are cautioned not to place undue reliance on these forward looking statements, which speak only as of the date March 17, 2010. MediciNova disclaims any intent or obligation to revise or update these forward looking statements. Forward Looking Statements Forward Looking Statements MediciNova, Inc. 2010 3 MediciNova Overview: Founded in September 2000 Headquartered in San Diego, CA Additional office in Tokyo, Japan Dual listing on NasdaqGM as MNOV and Osaka Securities Exchange as 4875 $100.1 million Market Cap (NasdaqGM) as of 3/16/2010 Development Company Focused on Differentiated Product Candidates Unique access to differentiated, potentially high value assets primarily from Japanese alliances (Kyorin, Kissei, Mitsubishi Tanabe Pharma, Meiji) New Approaches to Treat Serious Medical Conditions: MN 221: Intravenous (IV) acute asthma and COPD candidate Potential $1 billion+ combined market opportunity worldwide* MN 166: oral multiple sclerosis candidate; additional enabled neurological conditions In 2008, over $8 billion in worldwide MS therapeutic sales** Corporate Overview: Corporate Overview: MediciNova, Inc.
These forward looking statements may be preceded by, followed by or otherwise include the words believes, expects, anticipates, intends, estimates, projects, can, could, may, will, would, or similar expressions. Actual results or events may differ materially from those expressed or implied in any forward looking statements due to various factors, including the risks and uncertainties inherent in clinical trials and product development and commercialization, such as the uncertainty in results of clinical trials for product candidates, the uncertainty of whether the results of clinical trials will be predictive of results in later stages of product development, the risk of delays or failure to obtain or maintain regulatory approval, the risk of failure of the third parties upon whom MediciNova relies to conduct its clinical trials and manufacture its product candidates to perform as expected, the risk of increased cost and delays due to delays in the commencement, enrollment, completion or analysis of clinical trials or significant issues regarding the adequacy of clinical trial designs or the execution of clinical trials and the timing, cost and design of future clinical trials and research activities; the timing of expected filings with the FDA; MediciNova s failure to execute strategic plans or strategies successfully; MediciNova s collaborations with third parties; MediciNova s ability to realize the anticipated strategic and financial benefits from its acquisition of Avigen, Inc., to integrate the two ibudilast development programs and to pursue discussions with potential partners to secure a strategic collaboration to advance the clinical development of the combined development program; the availability of funds to complete product development plans and MediciNova s ability to raise sufficient capital when needed, or at all; intellectual property or contract rights; and the other risks and uncertainties described in MediciNova s filings with the Securities and Exchange Commission, including MediciNova s annual report on Form 10 K for the year ended December 31, 2008 and its subsequent periodic reports on Forms 10 Q, 10 K and 8 K.
These forward looking statements include statements regarding MediciNova s clinical trials supporting the safety and efficacy of its product candidates and the potential novelty of such product candidates as treatments for disease, plans and objectives for clinical trials and product development, strategies, future performance, expectations, assumptions, financial condition, liquidity and capital resources.
MediciNova, Inc. 2010 Accelerating the global development and commercialization of innovative pharmaceuticals Exhibit 99.1 MediciNova, Inc. 2010 Statements in this presentation that are not historical in nature constitute forward looking statements within the meaning of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995.
Announced Positive MN 221 CL 010 Phase Ib Study Results in Moderate to Severe COPD Patients on March 17, 2010 Investment Highlights Investment Highlights *Anticipated completion dates based on current projections
Last updated: Mar 18, 2010