Scorpius Holdings Inc. · OTC:SCPX

Scorpius — Heat Biologics — Investor Presentation (May 2021)

20 slides from Scorpius's investor presentation, May 20, 2021

  1. Slide 1: Heat Biologics Corporate Presentation May 2021

    Heat Biologics N asdaq : HTBX CORPORATE PRESENTATION MAY 2021 1

  2. Slide 2: Forward Looking Statements

    Forward Looking Statements This presentation includes statements that are, or may be deemed, ‘‘forward - looking statements’’ within the meaning of the Private Securities Litigation Reform Act of 1995 , as amended . In some cases, these forward - looking statements can be identified by the use of fo

  3. Slide 3: Snapshot of Heat Biologics

    Snapshot of Heat Biologics (Nasdaq: HTBX) Headquarter s : Morrisville, NC • F ocus on developing first - in - class immunotherapies • Diversified and differentiated clinical - stage product portfolio - Cell therapies using proprietary gp96 platform - Antibody - based therapeutics • Lead product HS -

  4. Slide 4: Product Pipeline

    P roduct Pipeline 4 CTA = cancer testis antigen NSCLC = Non - small cell lung cancer

  5. Slide 5: Heat Biologics' gp96 Platform Activating the Immune System

    H eat Biologics’ gp96 Platform Activating the Immune System • Function of heat shock protein gp96: - Potent mucosal adaptive memory inducer - Chaperones antigens (pathogens or tumor) to the immune system - Activates B cell response and drives antigen - specific CD4+ and CD8+ T cel l activation • pla

  6. Slide 6: Heat Biologics' gp96 Platform Activating the Immune System

    H eat Biologics’ gp96 Platform Activating the Immune System • Function of heat shock protein gp96: - Potent mucosal adaptive memory inducer - Chaperones antigens (pathogens or tumor) to the immune system - Activates B cell response and drives antigen - specific CD4+ and CD8+ T cel l activation • Key

  7. Slide 7: HS-110 Overview

    HS - 110 Overview • HS - 110 in Phase 2 has broad potential for providing multiple treatment options to NSCLC patients in combination with a PD - 1 inhibitor - HS - 110 is a first - in - class, off - the - shelf, allogeneic cell therapy designed to utilize gp96 for immune activation against multiple

  8. Slide 8: HS-110 Phase 2 Trial Schema

    HS - 110 Phase 2 Trial Schema Cohorts A and B 8 bTMB , baseline blood tumor mutational burden; ID, intradermal; ISR, injection - site reaction; IV, intravenous; mut/Mb, mutations per megabase ; QW, weekly; Q2W, every 2 weeks;

  9. Slide 9: Overall Survival Cohort A: CPI naive patients treated by HS-110 + Nivolumab

    Overall Survival (%) Months Cohort A: CPI naïve pts treated by HS - 110 + Nivolumab at > 2L 9 Δ Heat Biologics Cohort A interim results as of November 2020 data cut. Median follow - up time = 19.4 months. * Borghaei et al 2021. J Clin Oncol Α Please note Heat Biologics’ trial did not have a comparat

  10. Slide 10: Patient Characteristics Cohort A and CheckMate Study

    Patient Characteristics C ohort A and CheckMate 057 Study 10 HS - 110 + Nivolumab CPI naïve patient at ≥ 2L Nivolumab CPI naïve patients at ≥ 2L Cohort A Δ CheckMate 057 * N 47 N 292 Adenocarcinoma 93.6% Adenocarcinoma 100% Squamous 6.4% Squamous 0 PD - L1 Positive (≥ 1%) 19.1% PD - L1 Positive (≥ 1

  11. Slide 11: Overall Survival Cohort B: CPI progressors treated by HS-110 + Nivolumab

    O verall Survival (OS) Cohort B: CPI progressors treated by HS - 110 + Nivolumab at > 2L 11 Overall Survival (%) Months Δ Heat Biologics Cohort B interim results as of November 2020 data cut . Median follow - up time = 11.9 months. NR = not reported. † C onstatini et al 2018 ERJ Open Research ‡ Schv

  12. Slide 12: Patient Characteristics Cohort B and Published Data

    Patient Characteristics C ohort B and Published Data 12 Δ Heat Biologics Cohort B interim results as of November 2020 data cut. Median follow - up time = 11.9 months. § Please note Heat Biologics’ trial did not have a chemotherapy only arm. Published data in green is historical data and not HS - 110

  13. Slide 13: OS by Injection Site Reaction (ISR)

    OS by Injection Site Reaction (ISR) In Both Cohort A and Cohort B, Significantly Improved OS in Patients who Experienced Dermal Injection Site Reaction ISR = Yes refers to patients who experienced at least one injection site reaction at any time during treatment 13 As of November 2020 datacut

  14. Slide 14: Subgroup Analyses Cohorts A and B

    Cohort A: Previously treated Checkpoint Inhibitor (CPI) naïve NSCLC patients Cohort B: NSCLC p atients whose disease had progressed on or after prior CPI treatment Δ Heat Biologics Cohort A interim results as of November 2020 data cut . Median follow - up time = 19 . 4 months . Subgroup analyses wer

  15. Slide 15: HS-130 Overview

    HS - 130 Overview • HS - 130 is the first allogeneic, off - the - shelf, cell therapy approach utilizing OX40 - mediated co - stimulation to enhance activation of dormant immune signal - Leverage HS - 110 clinical experience and manufacturing know - how - Addition of OX40L fusion protein to extend a

  16. Slide 16: COVID-19 Vaccine Program Overview

    COVID - 19 Vaccine Program Overview • Potential first - in - class vaccine for COVID - 19 - Utilizes the gp96 platform to induce long - lasting memory responses - Heat’s gp96 platform - based products evaluated in 250+ patients to date - Multiple vaccine candidates demonstrated activities in preclin

  17. Slide 17: PTX-35 Overview

    PTX - 35 Overview • PTX - 35 offers a unique opportunity to modulate conventional or regulatory T - cells - Context driven depending on specific disease settings - Broad applications in cancer and autoimmunity • Potential first - in - class antibody targeting TNFRSF25 for oncology - Phase 1 trial in

  18. Slide 18: PTX-35 Mechanism of Action

    PTX - 35 Mechanism of Action In Combination with Antigen - driven Immunotherapy 18 • Presented latest preclinical data on mechanism of action on PTX - 35 at AACR 2021 - PTX - 35 has anti - tumor activities in presence of tumor antigens: Reduction of Treg suppression and enhancement of T effector res

  19. Slide 19: Management Team of Heat Biologics

    Management Team of Heat Biologics Successful Track Record in Advancing Multiple Products to the Market 19 Jeff Wolf, JD, MBA Founder & CEO George Peoples, MD Chief Medical Advisor Gary Vinson VP of CMC & Quality Cheni Kwok, PhD, CLP Senior Advisor of Business Development William Ostrander C hief Fin

  20. Slide 20: Snapshot of Heat Biologics

    Snapshot of Heat Biologics (Nasdaq: HTBX) Headquarter: Morrisville, NC • F ocus on developing first - in - class immunotherapies • Diversified and differentiated clinical - stage product portfolio - Cell therapies using proprietary gp96 platform - Antibody - based therapeutics • Lead product HS - 11

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