Tempest Therapeutics, Inc. · NASDAQ:TPST

Tempest Therapeutics — OvaScience — Merger or Acquisition (August 2018)

20 slides from Tempest Therapeutics's merger presentation, Aug 9, 2018

  1. Slide 1: Disclaimer

    Disclaimer This presentation includes forward-looking statements. All statements contained in this presentation other than statements of historical facts, including statements regarding future results of operations and financial position of Millendo Therapeutics, Inc. (“Millendo,” “we,” “us” or “our

  2. Slide 2: Millendo Therapeutics: Leading orphan endocrine disease company

    Millendo Therapeutics Leading orphan endocrine disease company Clinical-stage company focused on orphan endocrine diseases • Clinically-validated molecules with differentiated mechanisms • High unmet medical needs in orphan indications A LEADER IN ORPHAN ENDOCRINE DISEASES Livoletide: Pivotal-stage

  3. Slide 3: Millendo Executive Leadership

    Millendo Executive Leadership Relevant and successful drug development and commercialization expertise JEFF BRINZA Chief Administrative Officer & General Counsel JULIA OWENS, PhD Chief Executive Officer PHARIS MOHIDEEN, MD Chief Medical Officer THOMAS HOOVER SVP Commercial Strategy RYAN ZEIDAN, PhD

  4. Slide 4: Prader-Willi Syndrome (PWS)

    Livoletide Nevanimibe Prader-Willi Syndrome (PWS) Well-characterized genetic orphan endocrine disease Complex disorder attributed primarily to spontaneous genetic error on CHROMOSOME 15 Prader-Willi syndrome is characterized by: Hyperphagia: Chronic feeling of insatiable hunger Starts at 5-8 years o

  5. Slide 5: PWS Patients & Families Have Significant Needs

    Livoletide Nevanimibe PWS Patients & Families Have Significant Needs Almost all Prader-Willi syndrome patients suffer from hyperphagia PWS, what specific things would you 60% with PWS DIABETES 7 Adults>50% BMI >40TYPE 2 “Assuming there is no complete cure for look for in an ideal treatment for PWS?”

  6. Slide 6: Critical Need for PWS Treatments

    Livoletide Nevanimibe Critical Need for PWS Treatments Livoletide is a compelling late-stage development drug candidate P Livoletide is ready for a pivotal study Zafgen’s beloranib Phase 3 Well-defined development and regulatory path program is useful precedent Novel compound and mechanism for PWS B

  7. Slide 7: Livoletide for Treatment of Hyperphagia in PWS

    Livoletide Nevanimibe Livoletide for Treatment of Hyperphagia in PWS Analogue of unacylated ghrelin etide • Once-daily injectable cyclic peptide vivo PK 9 Acylated Ghrelin (AG) AG is the most potent known appetite-stimulating hormone Unacylated Ghrelin (UAG) Livol (8mer) • Comparable in vitro and in

  8. Slide 8: UAG is a Biologically Active Hormone

    Livoletide Nevanimibe UAG is a Biologically Active Hormone Pharmacology of UAG is distinct from that of AG exhibit distinct 1GHSR1a = growth hormone secretagogue receptor, or ghrelin receptor 10 Numerous studies have shown that UAG is biologically active • Activates neurons in brain hunger centers •

  9. Slide 9: Low UAG Levels Associated with PWS Hyperphagia

    Livoletide Nevanimibe Low UAG Levels Associated with PWS Hyperphagia UAG inhibits AG-related effects Induced Food Intake in Rats as Hyperphagia Develops 350 8 2 Ph1aase Ph1abse Ph2aase Ph2abse Pha3se 3 Healthy Obese 0 0 UAG livoletide Acylated Ghrelin (AG) meal presentation meal presentation Adapted

  10. Slide 10: 2-week Placebo-Controlled Phase 2 PWS Clinical Trial

    Livoletide Nevanimibe 2-week Placebo-Controlled Phase 2 PWS Clinical Trial Robust, meaningful decreases in Hyperphagia Questionnaire (HQ) 0 0 0 baseline baseline baseline Allas et al. 2018 1 Home residents excludes subjects residing in hospital setting; analysis was pre-specified 12 All SubjectsHome

  11. Slide 11: Phase 2 Safety Summary

    Livoletide Nevanimibe Livoletide Phase 2 Safety Summary Well tolerated, no safety signals P Safety events well balanced relative to placebo • Subjects reporting any adverse event (AE) – – Livoletide: 60.9% Placebo: 58.3% • Most commonly reported AE in both groups were related injection site with pla

  12. Slide 12: PWS Clinical Development Plan

    Livoletide Nevanimibe Livoletide PWS Clinical Development Plan Single, pivotal Phase 2b/3 protocol 3 month endpoint Placebo crossover / 9-month extension Phase 2b Placebo crossover / 6-month extension Phase 3 6 month endpoint Operational efficiencies gained with a single protocol Robust dataset: ran

  13. Slide 13: Nevanimibe (ATR-101) for Orphan Adrenal Diseases

    Nevanimibe (ATR-101) for Orphan Adrenal Diseases

  14. Slide 14: Nevanimibe for Orphan Adrenal Diseases

    Livoletide Nevanimibe Nevanimibe for Orphan Adrenal Diseases Novel MOA has potential to address serious adrenal diseases P CAH Ph2b CS Ph2 ACAT1 Target Data to Date Clinical Trial Status Orphan Adrenal Diseases Clinical proof-of-concept from open-label Phase 2 clinical trial in CAH Adrenal-selective

  15. Slide 15: Congenital Adrenal Hyperplasia (CAH)

    Livoletide Nevanimibe Congenital Adrenal Hyperplasia (CAH) Rare Genetic Endocrine Disease Resulting in Inability to Synthesize Cortisol Exogenous cortisol treatment is required for life Monogenic deficiency of 21-HYDROXYLASE ENZYME Complications result from chronic high dose cortisol 90-95% • Higher

  16. Slide 16: Nevanimibe Proof of Concept Established in CAH

    Livoletide Nevanimibe Nevanimibe Proof of Concept Established in CAH Activity demonstrated through reductions in 17-OHP P Biological effect demonstrated through reduction in key steroids and steroid precursors • Mean reductions in 17-OHP were observed at all nevanimibe doses while mean increases wer

  17. Slide 17: Millendo is a Leading Company in Rare Endocrine Diseases

    Millendo is a Leading Company in Rare Endocrine Diseases Novel agents in orphan diseases with unmet needs and little innovation Rapidly and efficiently advance development of, obtain approval for, and commercialize livoletide for the treatment of PWS Pursue development of, obtain approval for, and c

  18. Slide 18: Millendo Therapeutics–OvaScience Merger

    Millendo Therapeutics–OvaScience Merger Definitive agreement for all-stock merger announced on August 9, 2018 Expected to be completed in 4Q 2018; new company will trade on Nasdaq under MLND Requires OvaScience shareholder approval among other customary conditions Concurrent financing from Millendo

  19. Slide 19: Millendo Therapeutics-OvaScience Merger

    Millendo Therapeutics-OvaScience Merger S% MILLENDO THERAPEUTICS. S~ MILLENDO \e “ar Definitive pec teenlnt for all-stock merger 2 announced on n August 9, 2018 Expected to be completed in 140 2018; new company will trade on Nastia u under MLND. Requires Ovasci nce shareholder approval among other c

  20. Slide 20: ~ MILLENDO SON SOE Or

    ~ MILLENDO SON SOE Or J™ TRANSFORMING FERTILITY THERAPEUTICS

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