XNK THERAPEUTICS Company presentation September 2021
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Disclaimer IMPORTANT NOTICE You must read the following before continuing. The following applies to this document, the oral presentation of the information in this document and any question-and- answer session that follows the oral presentation (collectively, the “information”). In accessing the information, you agree to be bound by the following terms and conditions. The information has been prepared solely for information purposes. The information in this presentation shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of the securities referred to herein in any jurisdiction in which such offer, solicitation or sale would require preparation of further prospectuses or other offer documentation, or be unlawful prior to registration, exemption from registration or qualification under the securities laws of any such jurisdiction. The information has not been independently verified, will not be updated and no representation or warranty expressed or implied is made as to, and no reliance should be placed on the fairness, accuracy, completeness or correctness of the information or opinion contained herein. The information in this presentation may not be forwarded or distributed to any other person and may not be reproduced in any manner whatsoever. Any forwarding, distribution, reproduction, or disclosure of this information in whole or in part is unauthorized. Failure to comply with this directive may result in a violation of the Securities Act or the applicable laws of other jurisdictions. FORWARD LOOKING STATEMENTS This presentation contains forward-looking statements that reflect management’s current views with respect to certain future events and potential financial performance. Although XNK Therapeutics believes that the expectations reflected in such forward-looking statements are reasonable, no assurance can be given that such expectations will prove to have been correct. Accordingly, results could differ materially from those set out in the forward-looking statements as a result of various factors. Important factors that may cause such a difference for XNK Therapeutics include but are not limited to: (i) the macroeconomic development, (ii) change in the competitive climate and (iii) change in interest rate level. This presentation does not imply that XNK Therapeutics has undertaken to revise these forward-looking statements, beyond what is required by applicable law or applicable stock exchange regulations if and when circumstances arise that will lead to changes compared to the date when these statements were provided. 2
Company highlights 1. Built on world-leading research on NK cells at Karolinska Institutet in Stockholm A unique, proprietary autologous NK-cell based platform with tangible 2. development potential The platform has ideal properties for targeting cancer across a wide range of 3. indications in mono- and combination therapy First-in-human phase I/II study showing very good safety data and promising 4. efficacy data for the leading investigational drug product Phase II study ongoing in patients with Multiple myeloma in combination with 5. Sanofi’s anti-CD38 antibody Sarclisa (isatuximab) A potential USD multi-billion white space market opportunity in the US and in 6. Multiple myeloma alone 4
Natural killer (NK) cells - Natural ability to kill cancer cells NK cell Healthy cell (inactive) MHC molecule Inhibitory receptor ▪ Discovered at Karolinska Institutet in 1975 ▪ Play a major role in the host-rejection of cancer cells ”OFF” ▪ Triggered by the lack of major Activating Activating histocompatibility complex (MHC) receptors, ligand receptor often lost by cancer cells, and/or by Cytotoxic NK cell overexpression of activating ligands Cancer cell release (active) ▪ NK cells release cytotoxic granules containing Inhibitory receptor perforin and granzymes, killing the cancer cells ”ON” Activating Activating ligand receptor 5
NK-cell therapy at a tipping point Promising market outlook Capital market momentum ▪ NK-cell therapy could be the Jul 2015 Mar 2020 Jul 2020 Jan 2021 Mar 2021 Apr 2021 next paradigm shift in cell- IPO AGC Inc. acquired IPO Collaboration deal Raised USD 9.0m to Research collaboration USD 207m MolMed for USD USD 290m >USD 640m develop TCR-NK- based cancer treatments 268m cell therapies ▪ Early clinical data for NK-cell therapy points to high Oct 2013 Jun 2020 Dec 2020 Merger Mar 2021 Apr 2021 Jun 2021 complete response rates and a IPO Rights issue Raised USD 47m in Filed to raise Collaboration deal USD 40m USD 90m series B financing to USD 100m in IPO >USD 2.3bn better safety profile than CAR- advance pipeline T treatments ▪ Additionally, NK-cell biology has the promise to overcome the barrier of targeting solid tumours 2013 2015 2016 2017 2018 2019 2020 2021 ▪ NK-cell therapies display an increasing enthusiasm from researchers and investors, Jul 2015 Apr 2020 Aug 2020 Nov 2020 Mar 2021 Apr 2021 which has translated into IPO Collaboration deal Management buyout Sanofi offers to Secured USD 160m Raised USD 43m significant investments USD 36m USD 3.1bn of remaining 45% stake for USD 183m acquire Kiadis for USD 358m Series C funding from Casdin Capital financing to advance product pipeline ▪ Cell therapy companies are transforming big Jun 2020 Sep 2020 Feb 2021 pharma R&D Rights issue Research Collaboration deal USD 201m collaboration USD 760m 6
Autologous NK-cell therapies in clinical development - XNK has a leading position in autologous NK-cell therapies Selected indications Pre-clinical Phase I Phase II Phase III On market Multiple myeloma Hepatocellular carcinoma Non-small-cell lung carcinoma Glioblastoma Colorectal Breast 7
Company history 2020 2020 2021 2021 Reports results First patient SEK 64m recruited to the from first-in- ODD status private phase II human phase by the FDA placement combination trial I/II clinical trial completed and initiates 2019 2020 planning for phase II clinical 2017 Patent for Joins the trials expansion of NextGenNK 2012 Patent granted in NK cells consortium XNK Therapeutics the US for method granted in the (then CellProtect to treat Multiple EU and Japan Nordic myeloma with 2021 Pharmaceuticals) is founded expanded NK cells 2021 Dr. Johan 2020 Research Aschan and Research collaboration Michael Uhlin collaboration initiated with appointed as Sanofi CMO and CSO, 2020 initiated with Cellect respectively Johan Liwing Biotechnology is appointed 2011 2014 2018 as CEO Patent granted ODD status Cell therapy by EMA for NK-cell consortium expansion in initiated the US and China 8
Our platform - Step-by-step overview 1▪ Removal of blood sample from the patient 6 1 2▪ Blood sample is frozen and transported to XNK’s laboratory 3▪ Expansion and activation of NK cells from peripheral blood of patients, taking ~20 days 5 2 4▪ The activated NK cells are frozen, with stability for up to 10 years 4 3 5▪ NK cells are transported to the patient 6▪ The activated NK cells are thawed and infused to the patient without need for further processing, with repetitive dosing possible 9
Expanded NK cells show cytotoxic effect - Specifically targeted against autologous MM cells Cytotoxic effect on MM cells Significant cytotoxicity against autologous MM cells ▪ Pharmacodynamic studies have Against autologous MM cells1) Against autologous non-MM indicated that NK cells from 80% cells1) 80% patients with MM can be efficiently expanded ex vivo 60% ▪ Expanded cells showed significant 60% in vitro cytotoxicity against autologous MM cells % Lysis % Lysis 40% 40% ▪ No significant toxicity against non- MM cells 20% 20% 0% 0% 0.3:1 1:1 3:1 10:1 0.3:1 1:1 3:1 10:1 E:T E:T Day 0 Day 5 Day 20 Day 0 Day 5 Day 20 1) Approximate illustration, for exact underlying clinical data, see Alici et al., 2008 10
Scalable technology platform - Potential to target wide range of indications including both solid and blood cancers Favourable conditions ✓ Minimal residual disease (MRD) situation, ✓ Antibody acting through antibody-dependent enabling efficient NK-cell therapies cell-mediated cytotoxicity (ADCC) Multiple myeloma Amyloidosis Glioblastoma Hepatocellular Non-small-cell Breast cancer Other cancers carcinoma lung cancer Platform A cancer of the A plasma cell An aggressive brain The most common The most common Cancer that forms The technology Multiple plasma cells, a type disorder closely cancer with limited type of primary liver type of lung cancer in the cells of the platform could myeloma of white blood cell related to myeloma treatments and a cancer, occurs most with no available breast are one of potentially be that normally and other blood high degree of often in people with treatment that the most common suitable for Other cancer produces antibodies cancers with limited recurrence chronic liver cures the cancer cancers globally treatment of a wide indications available treatment diseases range of other cancers Blood cancers Solid tumours 11
Current status of clinical development in MM Multiple myeloma Preclinical Phase I Phase II Phase III Approval ACP-001 Mono therapy study Completed FIH Phase I/II (consolidation) ISA-HC-NK Combination study Ongoing phase II study (consolidation) Ongoing preclinical Smoldering studies Ongoing preclinical Elderly studies 12
Very good safety profile, promising efficacy data Safety Overall survival Progression free survival1) ▪ No SAEs 1 ▪ Majority of AEs Grade 1 (mild) 0,9 1,00 ▪ Majority of AEs unlikely to be related 0,8 ▪ The most frequently reported AEs, 0,7 0,75 reported in two or more patients (n), 0,6 were: 0,5 OS PFS 0,50 OS 0,4 ▪ shingles (n=4) 0,3 ▪ upper respiratory infection (n=4) 0,2 0,25 ▪ lumbago (n=3) 0,1 ▪ diarrhea (n=2) 0 0,00 0 1 2 3 4 5 6 0 1 2 3 4 5 ▪ headache (n=2) Time (years) Time (years) ▪ paraesthesia (n=2) 100% OS after a median follow-up time of 60 Median PFS 34 months Serendipitous side effect/proof of efficacy months Easily treated EHA 2020: #EP914 - Autologous NK-cell-based immunotherapy for maintenance treatment of multiple myeloma Hareth Nahi et al. 13 1) Progression free survival: the length of time during and after the treatment of a disease, that a patient lives with the disease but it does not get worse
Increased Granzyme B as a surrogate biomarker Granzyme B Serum (blood plasma) Bone marrow ▪ A protein that is secreted 12 5 by active NK cells 10 ▪ Induces apoptosis (cell Granzyme B (pg/mL) 4 Granzyme B [npx] P103 death) of target cells for 8 P105 NK cells 6 P1063 P107 ▪ Measurable levels indicate 4 P110 2 that NK cells are active P111 2 1 ▪ Observation in bone marrow especially 0 pre 30 min 60 min 240 min pre 30 min 60 min 240 min pre 30 min 60 min 240 min -2 weeks 2 weeks 4 weeks 0 important as this is where at diagnosis 4 weeks after the tumour cells are st nd rd 3rd 3rd infusion 1 infusion 2 infusion 3 infusion located EHA 2020: #EP914 - Autologous NK-cell-based immunotherapy for maintenance treatment of multiple myeloma Hareth Nahi et al. 14
Cell-mediated immune defence - Antibody acting through antibody-dependent cell-mediated cytotoxicity Illustration of antibody-dependent cellular cytotoxicity (ADCC) Comments to ADCC Antibodies NK cell CD16 Cross-linking Tumour cells die ▪ ADCC is a mechanism of cell- bind antigens Fc receptors of CD16 by apoptosis mediated immune defence on the surface recognize cell- triggers whereby an effector cell of the of target cells bound degranulation immune system actively lyses antibodies into a lytic a target cell, whose synapse membrane-surface antigens have been bound by specific antibodies ▪ ADCC requires an effector cell which classically is known to be natural killer (NK) cells that typically interact with immunoglobulin G (IgG) antibodies 15
Phase II combination trial ongoing - First of its kind study in collaboration with Sanofi, Karolinska Institutet & Hospital Phase II study (ISA-HC-NK) initiated in Q2 2021 Description ▪ XNK Therapeutics’ lead candidate in combination with isatuximab (anti-CD38 monoclonal antibody - mAb) to: – amplify tumour cell recognition and killing via ADCC – decrease mAb-related side effects ▪ NK cells express low levels of CD38, implying that a combination with anti-CD38 monoclonal antibodies could be beneficial as the NK cells themselves will not be targeted Patient ▪ 60 patients to be recruited at Karolinska University Hospital population Huddinge Primary ▪ Overall response rate (ORR) including minimal residual endpoint disease (MRD) ▪ Time to progression / progression free survival (TTP / PFS) Secondary ▪ Duration of response (DoR) endpoint ▪ Overall survival (OS) ▪ Safety ▪ Evaluate the activity and function of PBMCs and bone Exploratory marrow-derived mast cells (BMMC) endpoint ▪ Evaluate serum cytokine and chemokine levels EudraCT: 2020-000994-26 16 ClinicalTrials.gov: NCT04558931
GMP production - In-house GMP-lab currently under construction, enabling expanded production capacity Production ▪ Current production at the production unit at Karolinska Cancer Center (KCC) Vecura ▪ Specialized GMP-lab, including QC and R&D, under construction enabling full control ‒ Located at Huddinge, Stockholm (Sweden), in close proximity to leading research and clinical and current production ‒ Production of initially 100 batches per year which, could be expanded upon need ‒ Enables efficient planning of production in the US for future clinical studies ▪ Relatively low productions costs due to streamlined production process and no gene modification of NK cells Zahra Rajabkhani, Scientist from XNK Therapeutics 17
Company highlights 1. Built on world-leading research on NK cells at Karolinska Institutet in Stockholm A unique, proprietary autologous NK-cell based platform with tangible 2. development potential The platform has ideal properties for targeting cancer across a wide range of 3. indications in mono- and combination therapy First-in-human phase I/II study showing very good safety data and promising 4. efficacy data for the leading investigational drug product Phase II study ongoing in patients with Multiple myeloma in combination with 5. Sanofi’s anti-CD38 antibody Sarclisa (isatuximab) A potential USD multi-billion white space market opportunity in the US and in 6. Multiple myeloma alone 18
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