Cartesian Therapeutics, Inc. · NASDAQ:RNAC

Cartesian Therapeutics — Selecta Biosciences — Investor Presentation (June 2020)

29 slides from Cartesian Therapeutics's investor presentation, Jun 18, 2020

  1. Slide 1: Corporate Presentation June 2020

    Corporate Presentation J u n e 2 0 2 0 SELB

  2. Slide 2: Safe harbor/disclaimer

    Safe harbor/disclaimer Any statements in this presentation about the future expectations, plans and prospects of Selecta Biosciences, Inc. (“the company”), including without limitation, statements regarding the progress of the clinical development of SEL-212, the anticipated timing of the head-to-he

  3. Slide 3: Selecta well-positioned for success

    Selecta well-positioned for success Pioneering immune tolerance platform, ImmTOR™ Lead program – SEL-212, addressing a $1B+ chronic refractory gout market with high unmet need — Selecta’s immune tolerance platform, ImmTOR, could unlock the full potential of biologic therapies by mitigating Neutraliz

  4. Slide 4: ImmTOR Pioneering Immune Tolerance Platform

    ImmTOR Pioneering Immune Tolerance Platform 4

  5. Slide 5: Biologic therapies may trigger NAbs that negate their therapeutic benefit

    Biologic therapies may trigger NAbs that negate their therapeutic benefit There is a significant unmet Dendritic cells play a key need for a technology that role in immune tolerance, selectively induces immune providing a promising target tolerance to mitigate unwanted antigen-specific immune respon

  6. Slide 6: ImmTOR may enable sustained therapeutic activity of biologic therapies

    ImmTOR has the potential ability to enable sustained therapeutic activity of biologic therapies and unlock their potential Co-administer with biologic therapies to mitigate antigen- specific NAb formation Induce a tolerogenic message from the dendritic cell to naïve T cells to develop into T regulat

  7. Slide 7: SEL-212 (ImmTOR+pegadricase) for Chronic Refractory Gout

    SEL-212 (ImmTOR+pegadricase) for Chronic Refractory Gout 7

  8. Slide 8: Chronic refractory gout is a severe form of inflammatory arthritis

    Chronic refractory gout is a severe form of inflammatory arthritis with a significant impact on patients Chronic disease can lead How chronic 34% 28% 23% refractory gout to sequelae including: patients describe Severe Breaking Glass Bone erosions their flare pain burn a bone piercing skin Tophi Chro

  9. Slide 9: Significant need for effective new therapies in chronic refractory gout

    Significant need for effective new therapies in chronic refractory gout Improved efficacy, allowing patients to complete full 6-month therapy cycle — Persistent reduction in Serum Uric Acid (SUA) levels — Elimination of tophi Monthly dosing Gout flare reduction Avoidance of “off-label” and global im

  10. Slide 10: Sustained reduction of SUA with monthly dosing of SEL-212 in Phase 2

    Sustained reduction of SUA with monthly dosing of SEL-212 was observed in Phase 2 dose ranging study Phase 2 results after 20 weeks of once-monthly SEL-212 treatment: SEL-212 SEL-212 SEL-212 SEL-212 SEL-212 100 66% (21/32)* 50 0 % Pts. SUA <6 mg/dL % Pts. SUA 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

  11. Slide 11: DECT scan images show reduction of tissue urate burden in Phase 2

    Dual energy computed tomography (DECT) scan images show reduction of tissue urate burden in Phase 2 dose ranging study Baseline Week 11 Week 20 https://selectabio.com/wp-content/uploads/2018/10/ACR-poster-DECT-2018-FINAL-.pdf 11

  12. Slide 12: Reduced frequency and severity of flares during SEL-212 therapy

    Phase 2 dose ranging data showed reduced frequency and severity of flares during SEL-212 therapy Percent of SEL-212 patients who had flares Severity of flares % of patients % of patients 64% 29% 24% 32% 12% 9% 3% 4% 1 2 3 4 5 Mild Medium Severe Months after initiation of treatment • Majority of flar

  13. Slide 13: SEL-212 generally well-tolerated in the Phase 2 dose ranging study

    SEL-212 generally well-tolerated in the Phase 2 dose ranging study SEL-212 was generally well tolerated at clinically Serious infusion reactions (%) active doses following >470 administrations during the Phase 2 trial 4 0 ) 3 3 .3 % ( n 3 0 23 SAEs reported in the Phase 2 trial o i t c 14 were repor

  14. Slide 14: COMPARE Trial: SEL-212 vs KRYSTEXXA in Gout

    COMPARE Trial: A Study to Compare the Efficacy of SEL-212 to KRYSTEXXA® in Gout Patients Refractory to Conventional Therapy SEL-212 (N=83) 6 Infusions Once Monthly • Primary Endpoint: Statistical Superiority for Serum uric acid level below 170 Refractory Chronic 6mg/dL at 3 and 6 months Randomized G

  15. Slide 15: SEL-212 Phase 3 Study Design

    SEL-212 Phase 3 Study Design 2 double blinded placebo-controlled trials of SEL-212 (0.1 mg/kg & 0.15 mg/kg SEL-110) Randomized 1:1:1 against Placebo with a total of 210 Treated Subjects Enrollment is expected to commence in 2H 2020 SEL-212 -0.1/0.2 mg/kg Study 1 N = 35 subjects / SEL-212 -0.15/0.2 m

  16. Slide 16: Selecta-Sobi Strategic Licensing Agreement

    Selecta-Sobi Strategic Licensing Agreement In June 2020, Selecta and Sobi announced a strategic licensing agreement for SEL-212 — Sobi takes on SEL-212 development, regulatory, and commercial activities in all markets outside of China — Selecta runs the phase 3 on behalf of Sobi, at Sobi’s expense S

  17. Slide 17: ImmTOR in Gene Therapy

    ImmTOR in Gene Therapy 17

  18. Slide 18: The ability to re-dose AAV gene therapy is a key goal

    The ability to re-dose AAV gene therapy is a key goal to unlocking the full therapeutic potential Dose titration Dose titration Potential to increase proportion of patients who achieve Therapeutic target zone therapeutic benefit without risk of overdosing Enrollment in clinical trials could be achie

  19. Slide 19: In preclinical studies, ImmTOR induced antigen-specific immune tolerance

    In preclinical studies, ImmTOR induced antigen-specific immune tolerance Treatment Challenge ImmTOR provided AAV-specific AAV8 + ImmTOR AAV8 or AAV5 immune tolerance AAV8 + Empty NP NAbs did not develop in mice treated with ImmTOR+AAV vector Day 0 Day 21 Mice treated with empty nanoparticle (NP) + A

  20. Slide 20: Preclinical data indicates potential of ImmTOR-powered re-dosing in gene therapy

    Preclinical data indicates potential of ImmTOR-powered re-dosing in gene therapy ImmTOR-powered AAV8 gene therapy has potential to be re-dosed without NAb formation or loss of therapy expression ImmTOR or Empty NP ImmTOR or Empty NP + AAV8-Luc AAV8-Factor IX Day 0 21 54 Anti-AAV8 Antibody Titer Seru

  21. Slide 21: First dose benefit of ImmTOR on liver-directed transgene expression

    First dose benefit of ImmTOR on liver-directed transgene expression Day 0 Day 56 AAV8-SEAP AAV8-SEAP AAV8-SEAP + ImmTOR AAV8-SEAP + ImmTOR ) U 15000 L R ( P 10000 A E S 5000 m u r e S 0 11 46 63 77 Days First dose benefit is immediate and independent of effect on adaptive immune response Cumulative

  22. Slide 22: Opportunities for clinical POC in gene therapy

    Opportunities for clinical POC in gene therapy Collaboration Proprietary Program License Agreements AskBio OTC (Ornithine Transcarbamylase AskBio – Development pipeline and deficiency) – Licensed ImmTOR for Pompe human trials planned for disease in December 2019 repeat dosing of AAV-based gene thera

  23. Slide 23: Strategic Collaborations

    Strategic Collaborations 23

  24. Slide 24: Enhancing Value Through Collaborations

    Enhancing Value Through Collaborations Selecta has entered into strategic transactions with leading biopharmaceutical companies to further unlock the value of the ImmTOR platform Year 2016 2019 2019 2020 2020 Enable re-dosing of life- Enable re-dosing of life- Enable re-dosing of life- Improving the

  25. Slide 25: Summary

    Summary 25

  26. Slide 26: Projected upcoming milestones

    Projected upcoming milestones SEL-212 – Report top-line data in head-to-head (COMPARE) trial of SEL-212 against pegloticase in chronic refractory gout (3Q 2020) – Commence Phase 3 clinical program against placebo (2H 2020) Gene Therapy Program – Commence human POC trial under AskBio collaboration in

  27. Slide 27: Strong cash position

    Strong cash position Company well-capitalized with funding, pro forma for the strategic license agreement with Sobi, into the first half of 2023 Potential for significant additional non-dilutive funding through milestone and royalty payments from 2023 onward 27

  28. Slide 28: Selecta well-positioned for success

    Selecta well-positioned for success Pioneering immune tolerance platform, ImmTOR™ Lead program – SEL-212, addressing a $1B+ chronic refractory gout market with high unmet need — Selecta’s immune tolerance platform, ImmTOR, could unlock the full potential of biologic therapies by mitigating Neutraliz

  29. Slide 29: Relentlessly committed to overcoming immunogenicity

    Relentlessly committed to overcoming OUR PURPOSE IMMUNOGENICITY with our pioneering ImmTOR immune tolerance platform to transform the lives of patients and their families 29

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