Ensysce Biosciences, Inc. · NASDAQ:ENSC

Ensysce Biosciences — Investor Presentation (May 2022)

53 slides from Ensysce Biosciences's investor presentation, May 5, 2022

  1. Slide 1: The next generation of opioids?

    The next generation of opioids? , NASOMG: ENS Lynn Kirkpatrick, PhO - Ensysce" ary 2022

  2. Slide 2: Disclaimer

    Disclaimer Ensysce's PF614 and nafamostat are currently in clinical and pre-clinical trials, Involving both the TAAP platform and MPAR platform. Accordingly, PF614 and nafamostat have the risks and uncertainties inherent in any drug in trial-phase, which include, but are not limited to, a failure to

  3. Slide 3: Analgesic care in 2022 - the next generation

    Analgesic care in 2022 -

  4. Slide 4: Analgesic care in 2022 - the next generation

    Analgesic care in 2022 - the next generation. * Chronic and severe pain W ° The opioid crisis J - 2 potential new classes of agents: TAAP™ and MPAR™ * PF614 data: the first TAAP opioid

  5. Slide 5: Chronic and severe pain

    Analgesic core in 2022 - the next generation. * Chronic and severe pain

  6. Slide 6: How are we doing?!

    how are we doing?! No Mild Moderate Severe Very Severe Worst Pain Pain Pain Pain Pain Pain Possible

  7. Slide 7: Analgesia 2022 - More pain, more abuse, more deaths

  8. Slide 8: In the USA

    IN THE USA: Chronic Pain — 50 million Opioid Rx — 191 million Cost — $560 billion Deaths per day - 222

  9. Slide 9: In perspective

    - IN PERSPECTIVE

  10. Slide 10: Pain is Up, Painkillers are Down

    Pain is Up Painkillers are Down Ref: IQVIA 2021. 388 Sales $ Volume s ¢ s s Integrated View All Opioid brands and generics s 220 20 200m 800 800 ‘TRx Volume ao 60m fmm 02200 ANALG NARCOTIC (Sales $ Volume) =°=02200 ANALG NARCOTIC (TRx Volume) 10

  11. Slide 11: Opioid use/abuse

    OPIOID USE/ ABUSE

  12. Slide 12: The Opioid Receptor as an Analgesic Target

    Pare lroet The Opioid Receptor as an Analgesic Target Immune cell peptide Phospholipase C, Inositol triphosphate ‘Acid-sensing ion channels, Hyperpolarization-activated cyclic nucleotide-gated Front. Pharmacol., 29 November 2018 G protein-coupled inwardly-rectying potassium channels (GIRKs) https://

  13. Slide 13: Chronification

    “CHRONIFICATION” Surgery or injury . causes Sustained inflammation currents Transient Activation Sensitization Sustained Activation Ref: P Fine. CNS = Central Nervous System ‘Structural Remodeling CHRONIC PAIN B

  14. Slide 14: Pain impacts

    PAIN IMPACTS Substance Misuse, ‘Abuse Secondary Anxiety medical problems XN Functional uncti Depression Disabilities ~~ =. Sleep > / Persistent Pain y € Cognitive Distortions disturbance: Ref: M Cheatle.

  15. Slide 15: Interplay

    Ref: L Webster INTERPLAY Pain Disorders Addiction Combined Psychiatric Disorders Effects. Disorders Drugs - Rx drugs and illicit 15

  16. Slide 16: How bad is it!

    - how bad is it! How Treatment for Chronic Pain Can Help Reduce Suicide Risk Reports show that 50 percent of chronic pain patients consider suicide to escape their physical pain. Treatments can help people chooselife, von Chronic Pain and Suicide: Signs You or a Loved One Needs Help, and How to Get

  17. Slide 17: Outlawing is not the answer

    Outlowing is not PRESCRIPTION BLANK Ref: Ballotpedia v

  18. Slide 18: Pain impact - worried about Rx drug addiction

    PAIN IMPACT - worried about Rx drug addiction! Which of the following would you describe as a major health problem in the U.S.? (multiple responses allowed) Cancer 59% Heart disease 52% Diabetes 52% Depression 42% Alcoholism 37% Alzheimer’s disease 34% Parkinson’s disease 15% Not sure 15% 18

  19. Slide 19: The Opioid Crisis

    Analgesic core in 2022 - the next generation. * The Opioid Crisis 19

  20. Slide 20: Addiction

    Addiction Ref: NIDA/ N Volkow. 20

  21. Slide 21: Stress

    stress Drug-Abusing Behavior Low Moderate High Patient Stress Level Ref: L Webster

  22. Slide 22: When liking becomes wanting

    Whenlikingbecomes =

  23. Slide 23: Individual

    individual Tek do a ~~ T

  24. Slide 24: Individual receptor variation

    individual Receptor Variation for Same Patient With Different Drug Level of Activation Drug 4 Sn Drug 2 MOR-1 MOR-1 MOR-1 MOR-1 MOR-1 Variant5 Variant2 Variant3.--Variant4—- Variant 5 Receptor

  25. Slide 25: Spot the 1?

    Spot the 1?

  26. Slide 26: Over-consuming

    Over-consuming Crushing and drinking/ chewing Crushing and snorting Crushing and injecting Combining with other drugs

  27. Slide 27: Abuse Quotient

    QUOTIENT - The attractiveness of a drug for abuse, the “abuse potential” Extended release formulations (Abuse Deterrent of a drug increases as the value of the AQ increases Formulations; ADF) were developed to reduce AQ. Form Route PK PD 3 oral a AQ = Crnax/Tmax ed 3 2 Tine 8 «= 3 — 8 3 oral / 5 2 g

  28. Slide 28: ADFs

    ADFs: OxyContin: Intact vs manipulated 28

  29. Slide 29: Words are important: deterrent vs protectant

    Words are Deterrent vs protectant Deterrent: a thing that discourages or is intended to discourage someone from doing something. "cameras are a major deterrent to crime”. Protectant: a substance that provides protection, e.g. against disease or ultraviolet radiation. 29

  30. Slide 30: Potential new classes: TAAP and MPAR

    Analgesic core in 2022 - the next generation. * 2 potential new classes: TAAP™ and MPAR™ 30

  31. Slide 31: Stepladder

    Stepladder ‘Song’ opioid + nonoplld -tadjuvant therapy ‘Weak’ opioid: nenopioid + adjuvant therapy Nonopoid + adjuvant therapy Figure 1. modern rendton ofthe orginal 1986 WHO pain ladder wit 3 steps. Patents begin athe frst rung and then based on pan Intent progress, ung by rung, up the ladder oy as

  32. Slide 32: Ideal opioid

    IDEALOPIOID = Reinforcing Efficacy Comes Before Therapeutic Efficacy Comes Before Therapeutic Efficacy Reinforcing Efficacy Therapeutic” Efficacy / / Reintorcing Efficacy Reinforcing Efficacy ‘Therapeutic / efficacy / Toxicity Toxicity / / Response Response Drug Dose Drug Dose 323 REF: THOMPSON 1977

  33. Slide 33: Opioid

    OPIOID Therapeutic Efficacy Low Reward Low Toxicity Must Relieve Pain Not “reinforcing” in the therapeutic dose range: does not drive drug seeking behavior Side effects separated from beneficial (analgesic) effects

  34. Slide 34: Imagine an opioid...

    IMAGINE AN OPIOID... > Impossible to alter PK profile > Disliked by, unattractive to, abusers > Yet highly effective in relieving severe pain

  35. Slide 35: TAAP - 2-step verification mechanism

    TAAP - 2-step verification mechanism to improve oral delivery, with release of active ingredient only in the small intestine with exposure to trypsin IMPROVED TAAP chemical modification VI TAAP is only activated by trypsin, f y TAAP not altered by manipulation.,

  36. Slide 36: TAAP two-step release process

    TAAP Two-Step Release Process Step 1: Swallow drug + Following ingestion, the drug is activated only after exposure to trypsin, a digestive enzyme that is active only in the small intestine Step 2: Timing chemically controlled + Asecond step is required for full release of the active drug. The chemi

  37. Slide 37: MPAR anti-overdose platform

    T™T™ MULTI PILL ABUSE _ : ; RESISTANT MPAR™ is a smart anti-overdose platform that is designed to protect patients from overdosing when it is combined with TAAP opioids. ANTI-OVERDOSE e PLATFORM MPAR" is only triggered n overdose. e MPAR™ inhibits trypsin activation step e Using a prescribed dose gi

  38. Slide 38: MPAR Mechanism of Action

    MPAR™ Mechanism of Action ae Combination Product With Dose-Triggered Trypsin Inhibition C_ mm PRESCRIBED DOSE No Interference when normal dose taken; Low dose of trypsin inhibitor (nafamostat) does not affect release of the opioid Trypsin activation releases free and active drug product SUB-THRESHOL

  39. Slide 39: PF614-MPAR preclinical data

    PF614-MPAR™ Without MPAR™ With MPAR™ TAAP + MPAR™: PRECLINICAL DATA PF614 without TI nafamostat PF614 with TI nafamostat + Combination product of PF614 with an ultrapotent = trypsin inhibitor, nafamostat 2 j + Taken at prescribed doses there is no change in i? | i oxycodone release from PF614 i /\ B

  40. Slide 40: PF614 Data

    Analgesic care in 2022 - the next generation. -PF614 Data 40

  41. Slide 41: Cannot be altered

    connot be altered * Unlike OxyContin, Ensysce’s opioid PF614, even when crushed, has no altered release kinetics: AQ * In Phase | studies have been able to dose match PF614 to marketed OxyContin dose units. & é Pre-clinical Blood Concentration of Opioid Vs. Time (dog) 20 CRUSHED Oxycodone 20mg UNTAM

  42. Slide 42: PF614 TAAP chemical modification

    PF614 TAAP chemical modification Cannot snort for joy — no trypsin in the nasal passage Cannot inject for joy — no trypsin in the blood stream Cannot crush to make work faster Added protection for OD (MPAR) 42

  43. Slide 43: PF614-101: Softer, more efficient

    PF614-101 Sofer, More Efficient : Oxycodone Concentration in Blood vs. Time following PF614 administered as oral solution xjloen nti cancemnantrg Slow Onset ‘max blood levels reached @ 4-h across all cohorts Dosen Naltrexone / meal s5ma/21/ ota Sint /22/ yes /tstes ‘TAAD: HUMAN CLINICAL DATA, PF614-

  44. Slide 44: Compared to OxyContin

    COMPARED TO OXYCONTIN Oxycodone halflife TARP: CLINICAL DATA ose (514 / OxyContin) ome wooo PF614-101Phase 1 Ensysce’s opioid PF614’s half-life is 12.7 hours, versus OxyContin’s 7.6 hours As a result, Ensysce’s PF614 is more convenient for the patient, since PF614 needs to be taken only twice- day,

  45. Slide 45: PF614-102 MAD/BE

    PF614-102 MAD/BE A Phase 1b, Randomized, 2-Part Single-Center Study to Evaluate the Pharmacokinetics and Safety of Multiple-Ascending Oral Doses of PF614 and the Food Effect and Bioavailability/Bioequivalence of Single Oral Doses of PF614 Relative to OxyContin in Healthy Adult Subjects The primary o

  46. Slide 46: PF614-102 MAD Table of Adverse Events

    PF614-102 MAD Table of Adverse Events PF614 OxyContin PF614 OxyContin OxyContin 50 mg 20 mg 100 mg 40 mg 200 mg n=6 n=2 n=6 n=2 n (%) n(%) n(%) n(%) Total subjects with at least 1 2 (33.3) 1 (50.0) 1 (16.7) 1 (50.0) 2 (100.0) TEAE* * Treatment Emergent Adverse Events: Vertigo, Photophobia, Nausea, C

  47. Slide 47: PF614-102 MAD oxycodone concentrations

    Oxycodone (ng/ml) PF614-102 MAD Oxycodone from 50, 100 and 200 mg PF614 n= 6 first 12 hours F614 50mg Solution F614 100 mg Solution —PF614 200 mg (2x 100mg capsules) Hours ‘Oxycodone (ng/ml) Oxycodone from 20, 40 and 80 mg OxyContin n=2 first 12 hours (OxyCantin 20 mg —onyContin 40 me —onyContin 80

  48. Slide 48: PF614-102 MAD Cmax

    PF614-102 MAD or PFBI4 Day 1 Cmax 20 40 20 Oxycodone mg equivalent dose +-PF614 -»-OxyContin max Day 5 Cmax 20 40 a0 Oxycodone mg equivalent dose +-PF614-*-OxyContin 43

  49. Slide 49: PF614-102 MAD AUC

    2500 ‘ngimL) Oxycodone (hr PF614-102 MAD orPFBI4 AUC, Day 1 AUC), ——— ae 20 0 80 Oxycodone mg equivalent dose *-PF614-*-OxyContin ‘ngimL) Oxycodone (h Day 5 AUC), Oxycodone mg equivalent dose *-PF614 ~e-OxyContin 49

  50. Slide 50: PF614-102 MAD Day 1 and Day 5 AUC

    2500 ‘Oxycodone (hingimL) PF614-102 MAD or PFE14 Day 1 and Day 5 AUC, OxyContin = 20 40 80 Oxycodone mg equivalent dose OxyContin D1 -~ OxyContin D5 Day 1 and Day 5 AUC,, PF614 6 20 40 a0 ‘Oxycodone mg equivalent dose PF614D1 -ePF614D5 50

  51. Slide 51: PF614-MPAR-101

    PF614-MPAR-101 PF614 (25 mag) with ond without nofamostat (10 ma) Average Systemic Oxycodone after A Systemic PF614 aft 25 mg Oral PF614 with/without 10 mg Nafamostat samara ane 25 mg Oral PF614 with/without 10 mg Nafamostat Oxycodone (ng/ml) F614 (ng/mL) hours hours —*-With Nafamostat ‘Without Nafa

  52. Slide 52: The next generation of opioids?

    The next generation of opioids? BASIS TO BELIEVE WE COULD BE THE NEXT GENERATION OF OPIOIDS. TAAP and MPAR EMPLOY SOPHISTICATED CHEMISTRY. DATA STRONG FOR TAAP AND MPAR AS PF614 ENTERS PHASE 3. MPAR OVERDOSE PROTECTION DEMONSTRATED IN HUMANS. WIDESPREAD SUPPORT WITH FAST TRACK AND NIH/NIDA. TAAP AND

  53. Slide 53: Thank you

    Thank you Lynn Kirkpatrick, PhD WWW.ensysce.com 53

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