FOSL2

Data demonstrated soquelitinib was active in six inflammatory/immune disease models and provides rationale for development in a range of additional Th2- and Th17-mediated diseases Soquelitinib’s unique mechanism of action inhibited the production of Th2 and Th17 cells, providing upstream attenuation of several validated cytokine targets such as IL-4, IL-5, IL-13, IL-17 BURLINGAME, Calif., Nov. 01, 2023 (GLOBE NEWSWIRE) -- Corvus Pharmaceuticals, Inc. (Nasdaq: CRVS), a clinical-stage biopharmaceutical company, today announced the publication of preclinical data that demonstrated the potential of ITK inhibition as a novel approach to treat T cell-mediated inflammatory and immune diseases. Corvus’ ITK inhibitors include soquelitinib (formerly known as CPI-818), which was used in the preclinical studies and is currently in clinical trials for oncology indications, and several next-generation molecules that are being optimized for use in a variety of inflammatory and immune disease indications. “Our research on soquelitinib and selective ITK inhibition is uncovering valuable new information about immune function and the role of ITK in different diseases,” said James Rosenbaum, M.D., senior vice president of research at Corvus. “The activity of soquelitinib in various inflammatory and immune disease models highlights the essential role of ITK in multiple T cell functions. Our publication demonstrates that soquelitinib can impact disease-associated cytokines by targeting the cellular sources, specifically Th2 and Th17 cells, which produce cytokines like IL-4, IL-5, IL-13 and IL-17. We believe that blocking the source of cytokine production upstream offers advantages over existing therapies that individually target specific cytokines.” Professor Yannick Allanore, M.D., Ph.D., Professor of Rheumatology, Université Paris Cité, Institut Cochin, Paris, France, and a co-author of the publication, said, “Pulmonary fibrosis and systemic sclerosis are often fatal diseases for which current therapy is inadequate. Soquelitinib utilizes a novel mechanism and was effective in our model related to systemic sclerosis which is based on Fra2 gene overexpression, a model designed to represent human lung disease manifestations. Based on these data, we are eager to evaluate soquelitinib in a clinical trial for fibrotic diseases.” The publication, entitled “Soquelitinib, A Selective Inhibitor of Interleukin- 2- Inducible T Cell Kinase (ITK), is Active in Several Murine Models of T Cell-Mediated Inflammatory Disease,” highlights data demonstrating that soquelitinib was active in six different models of T cell-mediated inflammatory and immune disease, including acute and chronic asthma, pulmonary fibrosis, systemic sclerosis (scleroderma), psoriasis, and acute graft versus host disease. The data also describe soquelitinib’s unique mechanism of action, providing rationale for the development of ITK inhibition in a range of additional Th2 and Th17 mediated diseases, including asthma, psoriasis, atopic dermatitis, chronic obstructive pulmonary disease (COPD), systemic sclerosis, lupus and other diseases. The published research was a result of collaborations between scientists at Corvus and researchers at both Memorial Sloan Kettering Cancer Center in New York and The National Institute of Health and Medical Research (INSERM) in France. The publication is now available online as a preprint at bioRxiv.org and on the Publications and Presentations page of the Corvus website. “We are making significant progress with soquelitinib and believe that Corvus is firmly positioned as a leader in the scientific and clinical development of ITK inhibition as a platform opportunity across cancer, inflammation and immune disease,” said Richard A. Miller, M.D., co-founder, president, and CEO of Corvus. “Our primary focus is treating T cell lymphomas and cancer and we are actively preparing for a registrational Phase 3 trial of soquelitinib for peripheral T cell lymphoma. With this new publication, we further demonstrate the wide range of opportunities for ITK inhibition across specific indications with ongoing patient needs for new therapies. In addition, we have a robust pipeline of next generation ITK inhibitors and a portfolio of intellectual property that we believe provide attractive partnering opportunities for companies focused on various inflammatory and immune diseases.” Key results from the preclinical studies described in the publication demonstrated that soquelitinib had the following observed effects in models of inflammatory disease: Acute and chronic asthma models: Significant reductions in Th2 cytokines IL-4, IL-5 and IL-13 in both models, along with reductions in a validated disease activity scoreReduction in IL-6 signifying amelioration of inflammation Systemic sclerosis (Fra2 gene overexpression) model: Improvement in clinical score and preservation of body weightImprovement in lung histology, reduction of fibrosis and improvement in pulmonary vascular hypertensionReduction of GATA3-expressing T cells, indicative of effect on Th2 cellsReduction of ROR gammaT cells (RORγT), indicative of effects on Th17 cells Pulmonary fibrosis (bleomycin-induced) model: More consistent reduction of pulmonary fibrosis compared to an FDA-approved medication (nintedanib)Similar reduction in GATA3 as the systemic sclerosis model resultsReduction in MMP2 and TGF beta, two messenger RNAs associated with fibrosis Psoriasis (imiquimod (IMQ)-induced) model: Improvement in epidermal thickness, erosion and inflammationIn vitro studies demonstrated a reduction in the expression of RORγT protein, a master transcription factor that is responsible for developing Th17 cells, and a corresponding dose-dependent reduction in IL-17 cytokine production Graft versus host disease (GVHD) model: Improvement in survival rates and corresponding decrease in clinical GVHD scoreNo impact on engraftment or graft-versus-tumor effect About Corvus PharmaceuticalsCorvus Pharmaceuticals is a clinical-stage biopharmaceutical company pioneering the development of ITK inhibition as a new approach to immunotherapy for a broad range of cancer and immune diseases. The Company’s lead product candidate is soquelitinib, an investigational, oral, small molecule drug that selectively inhibits ITK. Corvus plans to initiate a Phase 3 registrational clinical trial for soquelitinib in patients with relapsed peripheral T cell lymphoma. Its other clinical-stage candidates are being developed for a variety of cancer indications. For more information, visit www.corvuspharma.com. About SoquelitinibSoquelitinib (CPI-818) is an investigational small molecule drug given orally designed to selectively inhibit ITK (interleukin-2-inducible T cell kinase), an enzyme that is expressed predominantly in T cells and plays a role in T cell and natural killer (NK) cell immune function. The immunologic effects of soquelitinib lead to what is known as Th1 skewing and is made possible by the high selectivity of soquelitinib for ITK. Research on soquelitinib’s mechanism of action suggests that it has the potential to control differentiation of normal T helper cells and enhance immune responses to tumors by augmenting the generation of cytotoxic killer T cells and the production of cytokines that inhibit cancer cell survival. Soquelitinib has also been shown to prevent T cell exhaustion, a major limitation of current immunotherapy and CAR-T therapies. Optimal doses of soquelitinib have been shown to affect T cell differentiation and induce the generation of Th1 helper cells while blocking the development of both Th2 and Th17 cells and production of their secreted cytokines. Th1 T cells are required for immunity to tumors, viral infections and other infectious diseases. Th2 and Th17 helper T cells are involved in the pathogenesis of many autoimmune and allergic diseases. The Company believes the inhibition of specific molecular targets in T cells may be of therapeutic benefit for patients with cancers, including solid tumors, and in patients with autoimmune and allergic diseases. Based on interim results from a Phase 1/1b clinical trial in patients with refractory T cell lymphomas, which demonstrated tumor responses in very advanced, refractory, difficult to treat T cell malignancies, the Company plans to initiate a registrational Phase 3 clinical trial of soquelitinib in patients with relapsed peripheral T cell lymphoma (PTCL). Forward-Looking StatementsThis press release contains forward-looking statements, including statements related to the potential safety and efficacy of the Company’s product candidates including soquelitinib, ciforadenant and mupadolimab; the potential use of soquelitinib to treat a variety of solid tumors and hematological cancers; the Company’s ability and its partners’ ability, as well as the timing thereof, to develop and advance product candidates through and successfully complete preclinical studies and clinical trials; the timing of and the Company’s ability to launch clinical trials including the potential registrational Phase 3 clinical trial for soquelitinib; and whether the Company is able to secure any partnerships or advance soquelitinib in any other indications. All statements other than statements of historical fact contained in this press release are forward-looking statements. These statements often include words such as “believe,” “expect,” “anticipate,” “intend,” “plan,” “estimate,” “seek,” “will,” “may” or similar expressions. Forward-looking statements are subject to a number of risks and uncertainties, many of which involve factors or circumstances that are beyond the Company’s control. The Company’s actual results could differ materially from those stated or implied in forward-looking statements due to a number of factors, including but not limited to, risks detailed in the Company’s Quarterly Report on Form 10-Q for the three months ended June 30, 2023, filed with the Securities and Exchange Commission on August 8, 2023, as well as other documents that may be filed by the Company from time to time with the Securities and Exchange Commission. In particular, the following factors, among others, could cause results to differ materially from those expressed or implied by such forward-looking statements: the Company’s ability to demonstrate sufficient evidence of efficacy and safety in its clinical trials of soquelitinib and its other product candidates; the accuracy of the Company’s estimates relating to its ability to initiate and/or complete preclinical studies and clinical trials and release data from such studies and clinical trials; the results of preclinical studies and interim data from clinical trials not being predictive of future results; the Company’s ability to enroll a sufficient number of patients in its clinical trials; the unpredictability of the regulatory process; regulatory developments in the United States, and other foreign countries; the costs of clinical trials may exceed expectations; and the Company’s ability to raise additional capital. Although the Company believes that the expectations reflected in the forward-looking statements are reasonable, it cannot guarantee that the events and circumstances reflected in the forward-looking statements will be achieved or occur, and the timing of events and circumstances and actual results could differ materially from those projected in the forward-looking statements. Accordingly, you should not place undue reliance on these forward-looking statements. All such statements speak only as of the date made, and the Company undertakes no obligation to update or revise publicly any forward-looking statements, whether as a result of new information, future events or otherwise. INVESTOR CONTACT:Leiv LeaChief Financial OfficerCorvus Pharmaceuticals, Inc.+1-650-900-4522llea@corvuspharma.com MEDIA CONTACT:Sheryl SeapyReal Chemistry+1-949-903-4750sseapy@realchemistry.com

INSIDE INFORMATIONS BioSenic publishes new evidence of beneficial effects of arsenic trioxide treatment supporting clinical trial for systemic sclerosis Arsenic trioxide (ATO) therapeutic potential to treat systemic sclerosis (SSc) is now confirmed in a new preclinical model - Fra2- characterized by severe pulmonary lesions Mont-Saint-Guibert, Belgium, September 19, 2023, 7.00 am CEST – BIOSENIC (Euronext Brussels and Paris: BIOS), the clinical-stage company specializing in serious autoimmune and inflammatory diseases and cell therapy, today announces the publication of data providing additional key indications of its lead API (Active Pharmaceutical Ingredient) arsenic trioxide (ATO) to treat systemic sclerosis (SSc) in a peer-reviewed international journal. The data are published in an article entitled ‘Arsenic trioxide demonstrates efficacy in a mouse model of preclinical systemic sclerosis’ in the international journal “Arthritis Research & Therapy”. This work studies the effects of ATO on a preclinical auto-immune disease model, that develops severe abnormal vascular remodeling of pulmonary arterioles and nonspecific interstitial pneumonia-like lung disease, closely resembling human systemic sclerosis (SSc)-associated pulmonary hypertension. Marked beneficial effects of ATO on skin and lung fibrosis, vascular damage and scleroderma-like lesions have been previously described by Kavian et al. (J Immunol 2012 May; Arthritis Rheum 2012 Oct) in vitro and in SSc preclinical models, at the Cochin Institute’s facilities in Paris, France. The new data, in a third valuable preclinical model, show a significant reduction in inflammatory infiltration and a strong improvement in vascular remodeling, mediated by an immune status improvement, particularly involving T-cells. These findings represent a substantial advancement in understanding of the complex interplay between inflammation-driven fibrosis and the pathophysiology of SSc. These results give ground to the proposed clinical relevance of ATO treatment in SSc, and more generally in autoimmune pathologies, where lung is often impacted by fibrosis and vascular remodeling. In oncology, ATO is now recognized as a first-line treatment for acute promyelocytic leukaemia, with demonstrated safety and long-term remission. BioSenic had recently further demonstrated the safety and efficacy of ATO treatment in successful clinical programs targeting chronic Graft-versus-Host Disease, in a phase 2 and Systemic Lupus Erythematosus (SLE), in a phase 2a trial. BioSenic believes that the clinical data it has helped to generate over the past decade, together with its ongoing efforts to understand the cellular pathways that are controlled by ATO administration at the right dose and time, now allow for further expansion of clinical trials targets. This applies to new indications in autoimmunity and inflammatory diseases. This is a reason why BioSenic specifically selected SSc for a systematic clinical approach to testing ATO as a novel first-in-class therapy. François Rieger, PhD, Chairman and CEO, BioSenic said: "BioSenic is now focusing on the final preparations for its phase 3 trial with ATO targeting chronic Graft-versus-Host Disease, one of the most common complications affecting survival of allogeneic hematopoietic stem cell transplantation patients. It is also essential that BioSenic continues to pave the way for clinical progression of its ATO programs to treat systemic lupus erythematosus and systemic sclerosis. These new pre-clinical data add to the raft of in vitro and in vivo experimental data generated by BioSenic, by the scientific community and across the industry, supporting the potential of arsenic salt medication in correcting the pathophysiological parameters of the immune system gone awry in a number of autoimmune diseases. These results demonstrate the potential of ATO on the cellular characteristics of damaged organs, with chronic and aggravating functional abnormalities. This will provide invaluable knowledge for BioSenic’s ATO application and formulation for the ongoing clinical development, and further contribute towards the future success of ATO’s late-stage clinical development. Compounded observations, both widely published and collected in various international studies, fully justify the initiation of trials on SSc patients, in need of new and decisive medications, other than existing palliative ones. The hope for success is high and BioSenic is working hard in translating the present fundamental results into real therapeutic advances with the necessary help of available international funding.” About BioSenic BioSenic is a leading biotech company specializing in the development of clinical assets issued from: (i) the arsenic trioxide (ATO) platform (with key target indications including Graft-versus-Host Disease (GvHD), systemic lupus erythematosus (SLE) and systemic sclerosis (SSc) and (ii), the development of innovative products to meet unmet needs in orthopedics.Following a reverse merger in October 2022, BioSenic combined a strategic positionings and strengths to use, separately and combined, an entirely new arsenal of various anti-inflammatory and anti-autoimmune formulations using the immunomodulatory properties of ATO/oral ATO (OATO) with its innovative cell therapy platform and strong IP for tissue repair protection.BioSenic is based in the Louvain-la-Neuve Science Park in Mont-Saint-Guibert, Belgium. Further information is available at http://www.biosenic.com. About BioSenic technology platforms BioSenic’s technology is based on two main platforms: The ATO platform, which has been successfully developed, has immunomodulatory properties with fundamental effects on the activated cells of the immune system. The first effect is the increase of the cell oxidative stress in activated B, T and other cells of the innate/adaptative immune system to the point they will enter a cell death program (apoptosis) and be eliminated. The second effect is potent immunomodulatory properties on several cytokines involved in inflammatory or autoimmune cell pathways, with return to homeostasis. One direct application is its use in onco-immunology to treat GvHD (Graft-versus-Host Disease) in its chronic, established stage. cGvHD is one of the most common and clinically significant complications affecting long-term survival of allogeneic hematopoietic stem cell transplantation (allo-HSCT). cGvHD is primarily mediated by the transplanted immune cells that can lead to severe multiorgan damage. BioSenic has been successful in a Phase 2 trial with its intravenous formulation, which has orphan drug designation status by FDA and EMA. The Company is heading towards an international Phase 3 confirmatory study, with its new, IP-protected, OATO formulation. Another selected target is moderate-to-severe forms of systemic lupus erythematosus (SLE), using the same oral formulation. ATO has shown good safety and significant clinical efficacy on several affected organs (skin, mucosae and the gastrointestinal tract) in an early Phase 2a study. Systemic sclerosis is also part of the clinical pipeline of BioSenic. This serious chronic disease badly affects skin, lungs or vascularization, and has no actual current effective treatment. Preclinical studies on pertinent animal models are positive, giving good grounds to launch a Phase 2 clinical protocol. The allogeneic cell and gene therapy platform developed by BioSenic, with differentiated bone marrow sourced Mesenchymal Stromal Cells (MSCs), which can be stored at the point of use in hospitals. ALLOB represents a unique and proprietary approach to organ repair and specifically to bone regeneration, by turning undifferentiated stromal cells from healthy donors into bone-forming cells on the site of injury. ALLOB has recently been evaluated in a randomized, double-blind, placebo-controlled Phase 2b study in patients with high-risk tibial fractures, using its optimized production process, after a successful first safety and efficacy study (Phase 1/2a) on fractured long bones, with late-delayed union. However, in June 2023, BioSenic decided to suspend its interventional trial on fracture healing using ALLOB, following negative results obtained for the primary endpoint in this exploratory Phase 2b clinical trial, interpreted as a failure of a too early cell injection, just after fracture. BioSenic is now focusing on determining the best time to optimise the efficacy of ALLOB (choice between early or late treatment). Note: Biosenic has reevaluated a previous important and years-long clinical development program. In March 2023, after the clinical identification of distinct OA subtypes, BioSenic delivered a new post-hoc analysis of its Phase 3 JTA-004 trial on knee OA, demonstrating positive action on the most severely affected patient subpopulation. This new post-hoc analysis drastically changes the therapeutic profile of the combined components and allows for better patient targeting in future clinical developments. This leads to a next generation of JTA, off-the-shelf enhanced viscosupplement to treat knee osteoarthritis (OA), made of a unique combination of mammalian plasma proteins, derivatives of hyaluronic acid (a natural component of synovial fluid in the knee) and a third active component. JTA or some derivatives are intended to provide effective lubrication and protection to the cartilage of the arthritic joint and to alleviate osteoarthritic (OA) pain and inflammation. The company, will nevertheless focus its present R&D and clinical activities on a selective, accelerated development of its autoimmune (ATO/OATO) platform. For further information, please contact: BioSenic SAFrançois Rieger, PhD, Chief Executive OfficerTel: +33 (0)671 73 31 59investorrelations@biosenic.com International Media Enquiries:IB CommunicationsNeil Hunter / Michelle BoxallTel: +44 (0)20 8943 4685neil.hunter@ibcomms.agency / michelle@ibcomms.agency For French Investor Enquiries:Seitosei ActifinGhislaine GasparettoTel: +33 (0)1 56 88 11 22ggasparetto@actifin.fr Certain statements, beliefs and opinions in this press release are forward-looking, which reflect the Company or, as appropriate, the Company directors’ current expectations and projections about future events. By their nature, forward-looking statements involve a number of risks, uncertainties and assumptions that could cause actual results or events to differ materially from those expressed or implied by the forward-looking statements. These risks, uncertainties and assumptions could adversely affect the outcome and financial effects of the plans and events described herein. A multitude of factors including, but not limited to, changes in demand, competition and technology, can cause actual events, performance or results to differ significantly from any anticipated development. Forward looking statements contained in this press release regarding past trends or activities should not be taken as a representation that such trends or activities will continue in the future. As a result, the Company expressly disclaims any obligation or undertaking to release any update or revisions to any forward-looking statements in this press release as a result of any change in expectations or any change in events, conditions, assumptions or circumstances on which these forward-looking statements are based. Neither the Company nor its advisers or representatives nor any of its subsidiary undertakings or any such person’s officers or employees guarantees that the assumptions underlying such forward-looking statements are free from errors nor does either accept any responsibility for the future accuracy of the forward-looking statements contained in this press release or the actual occurrence of the forecasted developments. You should not place undue reliance on forward-looking statements, which speak only as of the date of this press release. BioSenic publishes new evidence of beneficial effects of arsenic trioxide treatment supporting clinical trial for systemic sclerosis Arsenic trioxide (ATO) therapeutic potential to treat systemic sclerosis (SSc) is now confirmed in a new preclinical model - Fra2- characterized by severe pulmonary lesions Mont-Saint-Guibert, Belgium, September 19, 2023, 7.00 am CEST – BIOSENIC (Euronext Brussels and Paris: BIOS), the clinical-stage company specializing in serious autoimmune and inflammatory diseases and cell therapy, today announces the publication of data providing additional key indications of its lead API (Active Pharmaceutical Ingredient) arsenic trioxide (ATO) to treat systemic sclerosis (SSc) in a peer-reviewed international journal. The data are published in an article entitled ‘Arsenic trioxide demonstrates efficacy in a mouse model of preclinical systemic sclerosis’ in the international journal “Arthritis Research & Therapy”. This work studies the effects of ATO on a preclinical auto-immune disease model, that develops severe abnormal vascular remodeling of pulmonary arterioles and nonspecific interstitial pneumonia-like lung disease, closely resembling human systemic sclerosis (SSc)-associated pulmonary hypertension. Marked beneficial effects of ATO on skin and lung fibrosis, vascular damage and scleroderma-like lesions have been previously described by Kavian et al. (J Immunol 2012 May; Arthritis Rheum 2012 Oct) in vitro and in SSc preclinical models, at the Cochin Institute’s facilities in Paris, France. The new data, in a third valuable preclinical model, show a significant reduction in inflammatory infiltration and a strong improvement in vascular remodeling, mediated by an immune status improvement, particularly involving T-cells. These findings represent a substantial advancement in understanding of the complex interplay between inflammation-driven fibrosis and the pathophysiology of SSc. These results give ground to the proposed clinical relevance of ATO treatment in SSc, and more generally in autoimmune pathologies, where lung is often impacted by fibrosis and vascular remodeling. In oncology, ATO is now recognized as a first-line treatment for acute promyelocytic leukaemia, with demonstrated safety and long-term remission. BioSenic had recently further demonstrated the safety and efficacy of ATO treatment in successful clinical programs targeting chronic Graft-versus-Host Disease, in a phase 2 and Systemic Lupus Erythematosus (SLE), in a phase 2a trial. BioSenic believes that the clinical data it has helped to generate over the past decade, together with its ongoing efforts to understand the cellular pathways that are controlled by ATO administration at the right dose and time, now allow for further expansion of clinical trials targets. This applies to new indications in autoimmunity and inflammatory diseases. This is a reason why BioSenic specifically selected SSc for a systematic clinical approach to testing ATO as a novel first-in-class therapy. François Rieger, PhD, Chairman and CEO, BioSenic said: "BioSenic is now focusing on the final preparations for its phase 3 trial with ATO targeting chronic Graft-versus-Host Disease, one of the most common complications affecting survival of allogeneic hematopoietic stem cell transplantation patients. It is also essential that BioSenic continues to pave the way for clinical progression of its ATO programs to treat systemic lupus erythematosus and systemic sclerosis. These new pre-clinical data add to the raft of in vitro and in vivo experimental data generated by BioSenic, by the scientific community and across the industry, supporting the potential of arsenic salt medication in correcting the pathophysiological parameters of the immune system gone awry in a number of autoimmune diseases. These results demonstrate the potential of ATO on the cellular characteristics of damaged organs, with chronic and aggravating functional abnormalities. This will provide invaluable knowledge for BioSenic’s ATO application and formulation for the ongoing clinical development, and further contribute towards the future success of ATO’s late-stage clinical development. Compounded observations, both widely published and collected in various international studies, fully justify the initiation of trials on SSc patients, in need of new and decisive medications, other than existing palliative ones. The hope for success is high and BioSenic is working hard in translating the present fundamental results into real therapeutic advances with the necessary help of available international funding.” About BioSenic BioSenic is a leading biotech company specializing in the development of clinical assets issued from: (i) the arsenic trioxide (ATO) platform (with key target indications including Graft-versus-Host Disease (GvHD), systemic lupus erythematosus (SLE) and systemic sclerosis (SSc) and (ii), the development of innovative products to meet unmet needs in orthopedics.Following a reverse merger in October 2022, BioSenic combined a strategic positionings and strengths to use, separately and combined, an entirely new arsenal of various anti-inflammatory and anti-autoimmune formulations using the immunomodulatory properties of ATO/oral ATO (OATO) with its innovative cell therapy platform and strong IP for tissue repair protection.BioSenic is based in the Louvain-la-Neuve Science Park in Mont-Saint-Guibert, Belgium. Further information is available at http://www.biosenic.com. About BioSenic technology platforms BioSenic’s technology is based on two main platforms:1) The ATO platform, which has been successfully developed, has immunomodulatory properties with fundamental effects on the activated cells of the immune system. The first effect is the increase of the cell oxidative stress in activated B, T and other cells of the innate/adaptative immune system to the point they will enter a cell death program (apoptosis) and be eliminated. The second effect is potent immunomodulatory properties on several cytokines involved in inflammatory or autoimmune cell pathways, with return to homeostasis. One direct application is its use in onco-immunology to treat GvHD (Graft-versus-Host Disease) in its chronic, established stage. cGvHD is one of the most common and clinically significant complications affecting long-term survival of allogeneic hematopoietic stem cell transplantation (allo-HSCT). cGvHD is primarily mediated by the transplanted immune cells that can lead to severe multiorgan damage. BioSenic has been successful in a Phase 2 trial with its intravenous formulation, which has orphan drug designation status by FDA and EMA. The Company is heading towards an international Phase 3 confirmatory study, with its new, IP-protected, OATO formulation. Another selected target is moderate-to-severe forms of systemic lupus erythematosus (SLE), using the same oral formulation. ATO has shown good safety and significant clinical efficacy on several affected organs (skin, mucosae and the gastrointestinal tract) in an early Phase 2a study. Systemic sclerosis is also part of the clinical pipeline of BioSenic. This serious chronic disease badly affects skin, lungs or vascularization, and has no actual current effective treatment. Preclinical studies on pertinent animal models are positive, giving good grounds to launch a Phase 2 clinical protocol. 2) The allogeneic cell and gene therapy platform developed by BioSenic, with differentiated bone marrow sourced Mesenchymal Stromal Cells (MSCs), which can be stored at the point of use in hospitals. ALLOB represents a unique and proprietary approach to organ repair and specifically to bone regeneration, by turning undifferentiated stromal cells from healthy donors into bone-forming cells on the site of injury. ALLOB has recently been evaluated in a randomized, double-blind, placebo-controlled Phase 2b study in patients with high-risk tibial fractures, using its optimized production process, after a successful first safety and efficacy study (Phase 1/2a) on fractured long bones, with late-delayed union. However, in June 2023, BioSenic decided to suspend its interventional trial on fracture healing using ALLOB, following negative results obtained for the primary endpoint in this exploratory Phase 2b clinical trial, interpreted as a failure of a too early cell injection, just after fracture. BioSenic is now focusing on determining the best time to optimise the efficacy of ALLOB (choice between early or late treatment).Note: Biosenic has reevaluated a previous important and years-long clinical development program. In March 2023, after the clinical identification of distinct OA subtypes, BioSenic delivered a new post-hoc analysis of its Phase 3 JTA-004 trial on knee OA, demonstrating positive action on the most severely affected patient subpopulation. This new post-hoc analysis drastically changes the therapeutic profile of the combined components and allows for better patient targeting in future clinical developments. This leads to a next generation of JTA, off-the-shelf enhanced viscosupplement to treat knee osteoarthritis (OA), made of a unique combination of mammalian plasma proteins, derivatives of hyaluronic acid (a natural component of synovial fluid in the knee) and a third active component. JTA or some derivatives are intended to provide effective lubrication and protection to the cartilage of the arthritic joint and to alleviate osteoarthritic (OA) pain and inflammation. The company, will nevertheless focus its present R&D and clinical activities on a selective, accelerated development of its autoimmune (ATO/OATO) platform. For further information, please contact: BioSenic SAFrançois Rieger, PhD, Chief Executive OfficerTel: +33 (0)671 73 31 59investorrelations@biosenic.com International Media Enquiries:IB CommunicationsNeil Hunter / Michelle BoxallTel: +44 (0)20 8943 4685neil.hunter@ibcomms.agency / michelle@ibcomms.agency For French Investor Enquiries:Seitosei ActifinGhislaine GasparettoTel: +33 (0)1 56 88 11 22ggasparetto@actifin.fr Certain statements, beliefs and opinions in this press release are forward-looking, which reflect the Company or, as appropriate, the Company directors’ current expectations and projections about future events. By their nature, forward-looking statements involve a number of risks, uncertainties and assumptions that could cause actual results or events to differ materially from those expressed or implied by the forward-looking statements. These risks, uncertainties and assumptions could adversely affect the outcome and financial effects of the plans and events described herein. A multitude of factors including, but not limited to, changes in demand, competition and technology, can cause actual events, performance or results to differ significantly from any anticipated development. Forward looking statements contained in this press release regarding past trends or activities should not be taken as a representation that such trends or activities will continue in the future. As a result, the Company expressly disclaims any obligation or undertaking to release any update or revisions to any forward-looking statements in this press release as a result of any change in expectations or any change in events, conditions, assumptions or circumstances on which these forward-looking statements are based. Neither the Company nor its advisers or representatives nor any of its subsidiary undertakings or any such person’s officers or employees guarantees that the assumptions underlying such forward-looking statements are free from errors nor does either accept any responsibility for the future accuracy of the forward-looking statements contained in this press release or the actual occurrence of the forecasted developments. You should not place undue reliance on forward-looking statements, which speak only as of the date of this press release.