Ibrexafungerp First Representative of a Novel Oral/IV Antifungal Portfolio January 2022 - cloudfront.net

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Ibrexafungerp
First Representative of a Novel Oral/IV Antifungal Portfolio

January 2022
Ibrexafungerp First Representative of a Novel Oral/IV Antifungal Portfolio January 2022 - cloudfront.net
Forward-Looking Statements

Certain statements regarding SCYNEXIS, Inc. (the “Company”) made in this presentation constitute forward-looking statements, including,
but not limited to, statements regarding our business strategies and goals, plans and prospects, market size, adoption rate, potential revenue,
clinical validity and utility, growth opportunities, future products and product pipeline. Forward-looking statements are subject to risks and
uncertainties that could cause actual results to differ materially from our expectations. These risks and uncertainties include, but are not
limited, to: BREXAFEMME may not be accepted by physicians and patients at the rate SCYNEXIS expects; risks inherent in SCYNEXIS’
ability to successfully develop and obtain FDA approval for ibrexafungerp for additional indications; unexpected delays may occur in the
timing of acceptance by the FDA of an NDA submission; the expected costs of commercializing BREXAFEMME or of clinical studies and
when they might begin or be concluded; SCYNEXIS’ need for additional capital resources; and SCYNEXIS’ reliance on third parties to
conduct SCYNEXIS’ clinical studies and commercialize its products. The use of words such as “anticipates,” “expects,” “intends,” “plans,”
“could,” “should,” “would,” “may,” “will,” “believes,” “estimates,” “potential,” or “continue” and variations or similar expressions are intended to
identify forward-looking statements, but not all forward-looking statements may be so identified. These statements are based upon the current
expectations and beliefs of management and are subject to certain risks and uncertainties that could cause actual results to differ materially
from those described in the forward-looking statements. These risks and uncertainties include, but are not limited to, risks and uncertainties
discussed in the Company’s most recent reports filed with the Securities and Exchange Commission (“SEC”), including under the caption
“Risk Factors” in the Company’s annual report on Form 10-K for the year ended December 31, 2020, and in the Company’s subsequent
quarterly reports on Form 10-Q, which factors are incorporated herein by reference. Readers are cautioned not to place undue reliance on
any of these forward-looking statements. The Company undertakes no obligation to update any of these forward-looking statements to reflect
events or circumstances after the date of this presentation, or to reflect actual outcomes.

                                                                                                           © 2021 SCYNEXIS, Inc. All Rights Reserved.   2
Ibrexafungerp First Representative of a Novel Oral/IV Antifungal Portfolio January 2022 - cloudfront.net
Summary: Investment Highlights

    Ibrexafungerp: 1st member of the ‘fungerp’ family – a potential solution for the fungal infection crisis

         Novel oral/IV, potent, broad-spectrum antifungal with significant potential, ranging from vaginal
         yeast infections (VVC) in the community setting to hospital, life-threatening, invasive fungal infections

         U.S. Commercial launch of BREXAFEMME in August 2021 for treatment of VVC, a large market
         with only one oral FDA-approved product and >17 million Rx/year. A second indication in recurrent
         VVC in 2022: Estimated U.S. peak sales of $400M+ in VVC

         Hospital Program ongoing, with positive data readouts in refractory invasive fungal infections
         and Candida auris. Intravenous liposomal formulation in development. Potential approval for
         Invasive Candidiasis in 2024 with estimated U.S. peak sales of $300-$400M

         10 years of U.S. regulatory exclusivity until 2031 plus composition-of-matter patent up to 2035,
         with additional applications pending, for at least 14 years of exclusivity in the U.S.

         Potential to monetize world-wide rights and 2021 partnership with Hansoh Pharma for research,
         development and commercialization of ibrexafungerp in Greater China

         Experienced clinical and commercial teams & over $100M cash balance. Cash runway into 2023.

                                                                                                   © 2021 SCYNEXIS, Inc. All Rights Reserved.   3
Ibrexafungerp First Representative of a Novel Oral/IV Antifungal Portfolio January 2022 - cloudfront.net
Building an Antifungal Franchise with Ibrexafungerp
A versatile antifungal addressing a broad range of fungal infections in the community and in the hospital

         Community Infections                                                                                           Hospital Infections
   Treatment of Vaginal Yeast Infections

                                                                                                             Ibrexafungerp for Invasive Fungal Infections
BREXAFEMME® (ibrexafungerp tablets)                                                                             (Multi-day treatment: 750 mg per day
  (One-day treatment: 600 mg total)                                                                                      as long as required)
                                                                   ibrexafungerp                                         Invasive Candidiasis (IC)
         Launched in Q3 2021                                                                                               Refractory IFI (FURI)
   Potential Peak Net Sales of $400M+                                                                                     Candida auris (CARES)
                                                                                                                                Aspergillus
                                                                                                                   Potential Approval in IC in 2024
                                                                                                                   Potential Peak Net Sales of $300-400M
                                                                 First in class antifungal
                                                                     Broad spectrum                                         Also in development:
                                                                        Oral and IV                                  Intravenous Liposomal Formulation

 BREXAFEMME® is indicated for the treatment of post-menarchal females with VVC
 BREXAFEMME® is contraindicated in pregnancy and in patients with a history of hypersensitivity to ibrexafungerp

                                                                                                                    © 2021 SCYNEXIS, Inc. All Rights Reserved.   4
Ibrexafungerp First Representative of a Novel Oral/IV Antifungal Portfolio January 2022 - cloudfront.net
Ibrexafungerp Hospital & Community Clinical Programs                                                                                                                                            Potential
                                                                                                                                                                                                 Key Milestones

     14 years of exclusivity until 2035 with a stream of potential approvals in several indications
                                                 2021                               2022                                2023                                2024                              2025
                                                                                         P3 Study #302 (MARIO) Initiating
            Invasive Candidiasis (IC)                                                                                                                     NDA IC            FDA IC
            and/or Candidemia                                                                                                                              Filing          Approval
                                                                                                                                              Data        H1:24            H2:2024
                                                                                                                                              H1:24
                                                                                                             Data
            Invasive Aspergillosis                                                                           H2’22
                                                    P2 study (SCYNERGIA) Ongoing
            (Combination Therapy)
Hospital

                                                Interim Data                         Interim Data
                                                H1:21                                H1:22
                                                                     FURI Study (open-label, refractory IFIs)
            Refractory Invasive                                                                                                                            NDA            Approval
                                                                                   Ongoing                                                   Data          Filing           Other
            Fungal Infections                   Interim Data                          Interim Data                                           H1:24         H1:24         Indications
            (Designed for LPAD                  H1:21                                 H1:22                                                                                 H2:24
            eligibility)                                             CARES Study (open-label, Candida auris)
                                                                                   Ongoing                                                    Data
                                                                                                                                              H1:24
                                        P1 Liposomal IV (double-                                                                                                                        NDA Filing      FDA IV
            IV Formulation              blind, placebo-controlled,                                   Clinical Development Liposomal IV Formulation                                     for IV H1:25    Approval
                                        dose ranging) Completed                                                                                                                                        H2:2025

                                                Approved
            Treatment of                        Jun. 2021
            Vulvovaginal
Community

                                                                                                     ®
            Candidiasis (VVC)                            Launched
                                                          Q3 2021

            Prevention of                    1 P3 (CANDLE)                      sNDA rVVC             FDA rVVC
                                                                                  Filing              Approval
            Recurrent VVC                       Ongoing                           H1:22                H2:2022
                                                                        Data
                                                                        H1:22                                        Other potential oral indications: Prophylaxis, Chronic Fungal Infections

                                                                                                                                                      © 2021 SCYNEXIS, Inc. All Rights Reserved.            5
Ibrexafungerp First Representative of a Novel Oral/IV Antifungal Portfolio January 2022 - cloudfront.net
Cash Balance is Strong

  Cash runway into 2023

  Cash and cash equivalents of $100M as of September 2021, with additional $29M
  raised in December 2021

  Eligible to receive up to $112M in development and commercial milestones, plus low
  double-digit royalties on net product sales from partner Hansoh in Greater China

  Potential for additional ex-US business development opportunities

                                                              © 2021 SCYNEXIS, Inc. All Rights Reserved.   6
Ibrexafungerp First Representative of a Novel Oral/IV Antifungal Portfolio January 2022 - cloudfront.net
R&D Catalysts – 2022
• CANDLE topline results – Early Q2 2022
• First patient enrolled, MARIO – Q2 2022
• FURI and CARES interim analysis – Q2 2022
• RVVC sNDA submission – End of Q2 2022
• RVVC potential FDA decision – End of 2022
• SCYNERGIA topline data – H2 2022

                                              © 2021 SCYNEXIS, Inc. All Rights Reserved.   7
Ibrexafungerp First Representative of a Novel Oral/IV Antifungal Portfolio January 2022 - cloudfront.net
Experienced Leadership Team in Place to Execute this Vision

   Leadership has impressive track record for successful new drug development and commercialization

    Marco Taglietti, M.D.   David Angulo, M.D.      Christine Coyne    Scott Sukenick              Larry R. Hoffman
     President and Chief    Chief Medical Officer   Chief Commercial   General Counsel           Interim Chief Financial
      Executive Officer                                   Officer                                        Officer

                                                                                     © 2021 SCYNEXIS, Inc. All Rights Reserved.   8
Ibrexafungerp First Representative of a Novel Oral/IV Antifungal Portfolio January 2022 - cloudfront.net
BREXAFEMME® (ibrexafungerp tablets)
    VVC: Our First Indication

                            © 2021 SCYNEXIS, Inc. All Rights Reserved.   9
Ibrexafungerp First Representative of a Novel Oral/IV Antifungal Portfolio January 2022 - cloudfront.net
BREXAFEMME® – A “Modern-Day” Treatment for
HCPs & Patients
                                                                      Triterpenoid; novel class

                                                                      Fungicidal vs Candida spp.

                                                                      Half-life ~20 hours

                                                                      Convenient 1 day dosing, with/without food

  Safety & Efficacy

                                                                      Durable and complete resolution of signs
  Resolution of Signs and Symptoms
                                                                      and symptoms
                                                                      In vitro activity vs. resistant strains and broad-
  Activity vs. resistant & other Candida strains
                                                                      spectrum anti-Candida activity
                                                                      Favorable safety profile: no evidence of QTc
  Safety profile
                                                                      prolongation or hepatoxicity

  BREXAFEMME® is indicated for the treatment of post-menarchal females with VVC
  BREXAFEMME® is contraindicated in pregnancy and in patients with a history of hypersensitivity to ibrexafungerp
                                                                                                               © 2021 SCYNEXIS, Inc. All Rights Reserved.   10
FDA Approval of First New Treatment in 20+ years Garnered
Significant Media Coverage

                                              © 2021 SCYNEXIS, Inc. All Rights Reserved.   11
BREXAFEMME, Safety and Efficacy in VVC
 Two clinical trials including 545 patients exposed to BREXAFEMME, 2 doses of 300 mg in 1 day

                                Efficacy                                                                      Safety

             COMPLETE CLINICAL RESPONSE
   80%
                                                                                   • The most frequent adverse reactions (≥ 2%)
   70%
                                                                                     reported with BREXAFEMME in clinical trials of
   60%
                                                                                     vulvovaginal candidiasis treatment were diarrhea,
   50%                                                                               nausea, abdominal pain, dizziness, and vomiting.
   40%
                                                                                   • There were no serious adverse reactions.
   30%

   20%

   10%

    0%
             Day 8-14         Day 8-14        Day 21-29        Day 21-29
              Trial 1          Trial 2         Trial 1          Trial 2
                   BREXAFEMME                  PLACEBO
COMPLETE CLINICAL RESPONSE defined as complete resolution of signs and symptoms of VVC.
                                                                                             Please refer to full prescribing information at BREXAFEMME.com
BREXAFEMME vs. Placebo differences were all statistically significant.

                                                                                                              © 2021 SCYNEXIS, Inc. All Rights Reserved.   12
BREXAFEMME has Significant Potential in VVC
                                                                                                                                      Total Rx Treated Episodes
                     Large VVC Market (>18M annual Rx)
                                                                                                                                          18.5M Rx in 2020

            9.5M patients received 18.5M Rx because
                                                                                                                                      Rx Treated VVC Patients
            of re-treatments and multiple doses of the
                                                                                                                                            9.5M Patients
                         SoC being used per episode
                                                                                                                   Single                 Two               Three                 Four +
              Patients are often re-treated 2, 3 or 4+ times                                                      Episode               Episode            Episode               Episode
                                                                                                                  Patients              Patients           Patients              Patients
                     in a year with no alternative options
                                                                                                                    5.6M                 2.0M                0.9M                  1.0M

          BREXAFEMME’s market share* increases                                                                   BREXAFEMME Potential Peak Prescription Share
            as patients experience more episodes or                                                             Range based on the Number of Episodes                                 25%
           are considered as “Clinically Challenging”                                                           10%

         U.S. Net Sales Potential for BREXAFEMME                                                                BREXAFEMME 2027 U.S. Peak Net Sales Potential
         Revenue split: ~80% for treatment / ~20% for prevention***                                                                          ~$400M+**

Sources: SCYNEXIS HCPs Quantitative Demand Study (n=300), SCYNEXIS Payer Landscape Assessment, IQVIA Xponent Data.

                                  *Market Share takes into account the potential impact of competitors with a prevention indication
                                                                                                                                                   © 2021 SCYNEXIS, Inc. All Rights Reserved.   13
                                  **WAC Price for One-Day Course: $475       ***Assumes regulatory approval for rVVC
Hospital:
        Invasive Fungal Infections
“Invasive fungal infections will not go away any time soon. Therefore,
     we need to circumvent resistance to treatment by continued
discovery and development of new antifungal agents and strategies.”
                                                              Dr. John Perfect
                                         Nature Reviews/Drug Discoveries (2017)

                                                                                  scynexis.com
Oral Ibrexafungerp Development Path Updated to Address
Multiple Unmet Needs in the Hospital Setting
      Invasive Candidiasis              Refractory/Resistant             Invasive Aspergillosis

CARES                             FURI                              SCYNERGIA
Phase 3, open label               Phase 3, open label,              Phase 2, randomized
Candida auris infections          Candida, Aspergillus              Invasive Pulmonary Aspergillosis
Ongoing                           and mucormycosis                  Ongoing
                                  Ongoing
•   1 positive interim analysis                                     •   Top-line data expected in H2
    reported                      •   3 positive interim analyses       2022
                                      reported

MARIO
Phase 3, Randomized
Oral Step-Down
In Invasive Candidiasis
Initiating

                                                                             © 2021 SCYNEXIS, Inc. All Rights Reserved.   15
Oral Ibrexafungerp Will Allow Patients to Step-down to a Potent Oral
“Echinocandin-like” Therapy (Fungicidal Gold Standard for Treatment of
Invasive Candidiasis)

  Provides a strong oral step-down                 Facilitates switch to oral therapy
  therapy for prescribing physicians               • Greater flexibility for patient management
  • Broader spectrum of activity versus
                                                   • Earlier hospital discharge
    fluconazole, similar coverage as
    echinocandins                                  • Reduced risk associated with long-term IV
  • Potential safety profile advantage to            setting
    azoles: No liver toxicity or QT prolongation   • Savings on hospital and outpatient setting
                                                     cost

                                                                       © 2021 SCYNEXIS, Inc. All Rights Reserved.   16
Ibrexafungerp in Invasive Candidiasis

• Ibrexafungerp has shown activity against most fluconazole-resistant Candida strains
  • Fluconazole is generally not a preferred option for many non-albicans Candida species (NAC), due
    to the high likelihood of resistance
     – Depending on the institution, >40% invasive candidiasis cases are caused by NAC
     – In many instances the Candida isolate is not recovered (e.g., azole-susceptibility is unknown)

• Ibrexafungerp has also shown activity against >70% echinocandin-resistant Candida
  strains
  • Provides additional potential benefit as step-down and salvage

• Ibrexafungerp achieves high concentrations is tissues often involved in invasive
  candidiasis (e.g., liver, spleen, kidney, lung, etc.)

                                                                                         © 2021 SCYNEXIS, Inc. All Rights Reserved.   17
FURI-CARES – Strong Efficacy Signal from Interim Evaluations
• FURI: Subjects with fungal infections refractory to or intolerant of SoC
• CARES: Subjects with Candida auris infections
                                                                              The Fungal Diseases treated with ibrexafungerp included:
                                                                                 • Invasive Candidiasis (58.3%) such as candidemia, intra-
 Global Response at end of                                                         abdominal infections, bone and joint infections and other.
 treatment                                                   FURI+CARES
 (DRC assessment)                                              n=84 (%)          • Severe Mucocutaneous Candidiasis (38.1%) such as
                                                                                   esophageal, oropharyngeal, chronic mucocutaneous and
 Complete, Partial Response or                                                     vulvovaginal candidiasis.
                                                                54 (64.3)
 Clinical Improvement
                                                                                 • Invasive Pulmonary Aspergillosis (3.6%)
 Stable Disease                                                 18 (21.4)

 Progression of Disease or                                                    Fungal Pathogens included :
                                                                  5 (6.0)
 No Clinical Improvement                                                         •   Candida glabrata (39.3%), C. albicans (35.7%), C. auris
                                                                                     (11.9%), C. krusei (8.3%), other Candida species (12%) and
 Death While on Tx*                                               2 (2.4)
                                                                                     Aspergillus spp (3.6%).
                                                                                     –   Patients may have more than 1 species reported at baseline
 Unable to Determine                                              5 (6.0)

*Both deaths due to underlying condition and deemed unrelated to study drug   Oral ibrexafungerp was generally safe and well-tolerated
 Dose: 1500 mg for 2 days followed by 750 mg QD                                  •   Most common treatment-related AEs were mild to moderate GI
 Mean Treatment Duration: 40.9 Days                                                  events

                                                                                                               © 2021 SCYNEXIS, Inc. All Rights Reserved.   18
Invasive Candidiasis/Candidemia is a Significant U.S. Opportunity
                       with Potential Peak Net Sales Between $300M to $400M
                                                            ~175,000 U.S. Patients/Year Start Treatment with Echinocandins1

                                                                      ~100,000 U.S. Cases of Invasive Candidiasis/Candidemia2
                                                                                                                                      (~30% mortality)

                                                                                                                                  ~30,000 Patients Discharged                                                                          ~5,000 Refractory Infections
         ~35,000 Azole-Resistant Cases3
                                                                                                                                     On Oral Fluconazole5                                                                               (Salvage as in FURI Study)

~23,000 In-Patient Cases4                     ~12,000 Out-Patient Cases4
Treated with Echinocandins                    Treated with Echinocandins                                                                                                     ~2,000 Failed Patients6

                                                                                                                                                                                           75% penetration                                              80% penetration
          65% penetration                                     80% penetration                                                25% Penetration

    ~15,000 Patients                             ~10,000 Patients                                                  ~7,000 Patients                                             ~1,500 Patients                                                  ~4,000 Patients
    (14 Days of Treatment)                      (14 Days of Treatment)                                           (14 Days of Treatment)                                     (28 Days of Treatment8)                                           (42 Days of Treatment7)

•     Treatment regimen: 750mg ibrexafungerp BID for two days followed by 750mg daily
•     Rest of the World (ROW) hospital opportunity is similar to the U.S.
                            1.   IQVIA Prescription Data                                                                         5. Pappas et al (2016) Clin Infect Dis 62(4):409 and SCYNEXIS Internal Marketing Research
                            2.   NHDS (National Health Discharge Hospital) report by CDC National Center for Health Statistics   6. Mora-Duarte at al (2002): N Engl J Med 347:2020-2029
                            3.   US Centers for Disease Control and Prevention (CDC) 2019 Report                                 7. Average duration of treatment for this type of patients in the FURI study                © 2021 SCYNEXIS, Inc. All Rights Reserved.   19
                            4.   CMS Outpatient Reimbursement Data of Echinocandins
Key Takeaways/Conclusion

      Treatment of VVC is the first of multiple potential indications for ibrexafungerp

      Growth opportunity for ibrexafungerp will be maximized by pursuing an innovative
      path as an oral step-down therapy in the hospital setting with NDA filing and potential
      FDA approval in late 2024

      More than 14 years of patent protection for ibrexafungerp to build a long-lasting anti-
      fungal franchise

      Projected peak sales of $300-$400M for the treatment of invasive candidiasis alone in
      the hospital, combined with anticipated $400M+ in peak sales of BREXAFEMME in
      VVC, could result in revenues approaching antifungal blockbuster status

      Funds and resources to market BREXAFEMME and continue clinical development
      with a cash runway into 2023
                                                                      © 2021 SCYNEXIS, Inc. All Rights Reserved.   20
®

Ibrexafungerp
First Representative of a Novel Oral/IV Antifungal Portfolio

January 2022
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