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Investor Presentation A novel approach to treating cognitive impairment and Alzheimers disease Dr. Bill Ketelbey: CEO & MD November 2018 Contents Executive summary Xanamem XanADu Development pipeline Outlook Appendix Executive


  1. Investor Presentation A novel approach to treating cognitive impairment and Alzheimer’s disease Dr. Bill Ketelbey: CEO & MD November 2018

  2. Contents Executive summary Xanamem XanADu Development pipeline Outlook Appendix

  3. Executive summary Key investment highlights What is Xanamem Development pipeline

  4. Key investment highlights Actinogen is developing innovative treatments for cognitive impairment associated with neurodegenerative and metobolic diseases with an initial focus on Alzheimer‘s disease Novel compound Differentiated with a novel mechanism of action First-in- class, brain penetrant, orally active, small molecule, inhibitor of 11βHSD1 enzyme Xanamem mechanism of action validated by independent research on the cortisol hypothesis Clinical stage asset Targeted strategic market focus Initially focused on developing a treatment for Alzheimer's disease Advanced clinical stage program assessing Xanamem in Alzheimer’s disease Addressable market worth >US$7.5bn with unmet needs and potential upside XanADu clinical trial fully enrolled, with results expected Q2 CY2019 Target indication underpinned by efficacy results from animal model studies Positive safety interim analysis reported in XanADu Potential value upside De-risked opportunity Experienced leadership Well positioned to unlock further value Fully funded programs Board and Management with significant drug Multiple potential indications Additional Xanamem-related studies initiated development and investment experience, supported by Significant Big Pharma interest Additional pipeline opportunities under evaluation key opinion leaders and Xanamem discovery team │ A novel approach to treating cognitive impairment and Alzheimer's disease 4

  5. Xanamem Actinogen‘s lead compound, Xanamem, is a novel drug designed to inhibit the production of cortisol in the brain with the potential to treat cognitive impairment and Alzheimer‘s disease Well researched In clinical stage development, with over 15 years of R&D completed, and A$40m invested to date Well tolerated Dosed >150 patients with acceptable clinical safety, toxicity and PK / PD 1 profile Differentiated mechanism of action Highly selective inhibitor of the 11βHSD1 enzyme in the brain which reduces excess cortisol production Validated Symptomatic and disease modifying effects (in vivo) and effective demonstration of cortisol hypothesis (in humans) Well protected Composition of matter IP coverage ≥ 2031, patents granted in all major markets Xanamem is a novel, first-in-class, potent, orally bioavailable and brain- penetrant 11βHSD1 inhibitor 1. PK / PD: pharmacokinetic / pharmacodynamic │ A novel approach to treating cognitive impairment and Alzheimer's disease 5

  6. Clinical development and milestones Well progressed Phase II clinical trial (XanADu) underpinned by additional value-adding studies and an exciting Xanamem pipeline for other potential indications Studies 4Q CY2018 1Q CY2019 2Q CY2019 Key Phase II study for Alzheimer‘s disease Results expected by mid CY2019 focus Studies to demonstrate enzyme binding at different doses Target Occupancy studies Results expected by mid CY2019 Enhances Higher doses - safety study Xanamem Results expected by mid CY2019 data set Additional pre-clinical safety and toxicology studies Additional toxicology studies Initial results expected by mid CY2019 Assessment of other indications Upside Evaluating target indications Results expected e.g. diabetes, Parkinson‘s disease, Preliminary decision expected by 2Q CY2019 potential by mid CY2019 depression, schizophrenia, amongst others │ A novel approach to treating cognitive impairment and Alzheimer's disease 6

  7. Xanamem Xanamem has been developed in response to The cortisol hypothesis evidence that there is a strong association Validation of the cortisol hypothesis between chronically raised cortisol levels in the blood and in the brain, and the development and Mechanism of action progression of Alzheimer‘s disease Xanamem research and development Xanamem is underpinned by over 15 years of R&D with A$40m invested in development

  8. The cortisol hypothesis A growing body of literature showing an association between cortisol and cognitive impairment Medical publications: “Cortisol and Cognition” 1 Medical publications: “Cortisol and Alzheimer’s” 1 125 25 No. of publications annually No. of publications annually 100 20 75 15 50 10 25 5 0 0 1960 1975 1990 2005 2020 1980 1990 2000 2010 2020 Actinogen is well positioned to leverage the growing significance of the relationship between cortisol and cognition 1. PubMed keyword search │ A novel approach to treating cognitive impairment and Alzheimer's disease 8

  9. Human pilot studies validate the cortisol hypothesis Two pilot studies indicated inhibiting cortisol production in the brain improves cognitive function in healthy elderly men and subjects with Type 2 diabetes (11 β -HSD1 inhibition with carbenoxolone – no longer commercially available) 1,2 Verbal fluency: Study 1 1 Verbal memory: Study 2 2 P=0.005 P=0.006 Placebo 40. 40.6 SD ± 12.4 Placebo 55.2 55. SD ± 8.0 Treatment Treatment 58. 58.8 44.2 44. SD ± 10.6 SD ± 5.2 0 20 40 60 0 20 40 60 80 1,2 Significant improvement in verbal fluency and verbal memory after only 4 and 6 weeks of treatment Source: 11β -Hydroxysteroid dehydrogenase inhibition improves cognition function in healthy elderly men and type 2 diabetics Sandeep et al., 2004 PNAS (vol. 101, no. 17) 6734-6739 1. Study 1: 10 healthy subjects Age 55-75 (Mean Age = 65.5 ± 5.5) receiving 100mg carbenoxolone 3 times daily compared to placebo for 4 weeks, in a double-blind randomised crossover study 2. Study 2: 12 type 2 diabetics (m=9; f=3) Age 52-70 (Mean Age = 60 ± 4.9) receiving 100mg carbenoxolone 3 times daily compared to placebo for 6 weeks, in a double-blind randomised crossover study. │ A novel approach to treating cognitive impairment and Alzheimer's disease 9

  10. Mechanism of action Xanamem inhibits the activity of the 11 β HSD1 enzyme, reducing the production of cortisol in the brain Overview Xanamem has potential in other diseases with possible cortisol induced cognitive impairment  Alzheimer's disease (key focus)  Diabetes  Depression  Schizophrenia  Parkinson’s disease  Down syndrome  And more… │ A novel approach to treating cognitive impairment and Alzheimer's disease 10

  11. Xanamem research and development Xanamem is underpinned by significant R&D investment and clinical progress over the last 15 years 11 β -HSD1 is highly expressed in regions Successful important for Carbenoxolone Interim XanADu first subject cognition is shown to Analysis Xanamem enhance cognitive function data published in elderly men XanADu Xanamem 11 β -HSD1 First First and type II results crosses enzyme patent human diabetics mid- blood brain discovered filed study 11 β -HSD1 2019 1 barrier knockout mice ACW XanADu are protected Development acquires FDA IND XanADu against age- Xanamem of selective rights to last related achieved development 11 β -HSD1 Xanamem patient cognitive commences inhibitors that enrolled dysfunction cross the blood brain barrier Phase I Phase II Candidate Non-clinical optimisation Wellcome Trust funded Actinogen investor funded 1970 1990 2001 2004 2007 2009 2011 2013 2015 2016 2017 2018 2019 2014 1. Estimated timing of key milestones │ A novel approach to treating cognitive impairment and Alzheimer's disease 11

  12. XanADu XanADu is a global Phase II double-blind, Efficacy considerations randomised, placebo-controlled study asessing the XanADu Phase II clinical trial and milestones efficacy and safety of Xanamem in patients with mild Alzheimer‘s disease Interim analysis Enrolment complete with results expected in Q2 Favourable market dynamics CY2019 Competitive landscape Big Pharma interest

  13. Alzheimer‘s strategic focus underpinned by medical research A growing body of medical literature supports the association between cortisol and Alzheimer‘s disease Raised cortisol associated with Alzheimer’s disease 1 Supported by growing body of medical literature Many studies support the association 0.8 between cortisol and Alzheimer’s CSF cortisol ( μ g/dl) 0.7 disease development and progression 2 0.6 A recent AIBL 3 study provided 0.5 compelling evidence that elderly 0.4 subjects with higher plasma cortisol 0.3 levels are at much greater risk of 0.2 developing Alzheimer‘s disease 0.1 This study 3 also demonstrated that 0 50% of those aged 65+ have raised Cognitive MCI Other MCI AD AD dementia cortisol levels Normal Research suggests that lowering cortisol levels may prevent the development / progression of Alzheimer’s disease 1. MCI: mild cognitive impairment; AD: Alzheimer’s Disease 2. Recent studies also support the association between cortisol and cognitive impairment associated with neuroendocrine dysfunction Plasma Cortisol, Brain Amyloid- β , and Cognitive Decline in Preclinical Alzheimer’s Disease: a 6-Year Prospective Cohort Study. Pietrzak et al., 2017. Biological Psychiatry: Cognitive Neuroscience and Neuroimaging 2:45-52 3. │ A novel approach to treating cognitive impairment and Alzheimer's disease 13

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