This is a phase 1b/2 open-label, multicenter, basket study to determine the safety, anti-tumor activity, tolerability, and pharmacokinetics /pharmacodynamics of AsiDNA in combination with olaparib in participants with recurrent epithelial ovarian cancer, breast cancer and metastatic castration-resistant prostate cancer who have progressed on previous Poly (ADP-ribose) polymerase (PARP) inhibitor therapy. The study will be conducted in two phases. The Phase 1b dose escalation study designed to establish the safety, tolerability, pharmacologically active doses/ maximum tolerated dose and/or recommended phase 2 dose of AsiDNA in combination with olaparib.

Start Date20 Feb 2023

Sponsor / Collaborator

Valerio Therapeutics SA

NCT05394558 / TerminatedPhase 1/2IIT

A Phase Ib/II Study on AsiDNA in Association With Re-irradiation in Children, Adolescents and Young Adults With High-grade Glioma

HGG comprises diffuse midline gliomas (DMG), including diffuse infiltrating brainstem glioma (DIPG), characterised by histone gene mutations, as well as non-DM HGGs mainly in non-midline supratentorial areas, with distinct molecular abnormalities. First-line treatment comprises surgery when doable (non-DM HGGs), and radiotherapy in all cases. Chemotherapy or other drugs in clinical trials may be added during and/or after radiotherapy depending on the HGG subtype. The recurrence rate is nevertheless high in all paediatric and adolescent HGGs. If the time interval between the end of first-line radiotherapy and relapse is long enough, re-irradiation often provides good palliation of symptoms, delays disease progression, improves quality of life and has minimal and manageable toxicity. Nevertheless, strategies to increase efficacy without increasing toxicity in the treatment of recurrent paediatric HGG are much needed.
AsiDNA™ is a DNA repair inhibitor that increases the vulnerability of tumour cells to irradiation without increasing toxicity in healthy tissues. Its novel mechanism of action, based on perturbation of the DNA damage recognition steps in DNA repair, makes its activity specific to tumour cells. Intravenous administration of AsiDNA is currently being investigated in adults with advanced solid tumours. The MTD was not reached during the escalating dose study on the safety, pharmacokinetics and pharmacodynamics of AsiDNA administered as a 1-hour infusion, however an optimal dose range (400-600 mg) was identified for further development, based on the favourable safety and PK profiles. Preclinical studies on AsiDNA added to radiotherapy have shown increased survival and no increase in short- or long-term toxicity due to the high doses of irradiation.
The study will provide paediatric patients who have recurrent HGG with early access to innovation, even during the early drug development stage in adults.

Start Date27 May 2022

Sponsor / Collaborator

Institut Curie

NCT04826198 / TerminatedPhase 1/2IIT

An Open-label, Multicentric, Phase Ib/II Study to Assess the Safety and Efficacy of AsiDNATM, a DNA Repair Inhibitor, Administered Intravenously in Addition to Niraparib in Patients With Relapsed Platinum Sensitive Ovarian Cancer Already Treated With Niraparib Since at Least 6 Months

The objective of REVOCAN study is to assess the abrogation of PARP inhibitors resistance in patients with relapsed platinum sensitive ovarian cancer treated with PARP inhibitors in maintenance since at least 6 months and who have only an increase of CA 125 without any progression according to RECIST criteria. AsiDNATM at 600 mg will be tested in addition to PARP inhibitors given according to the label in REVOCAN study.

Start Date05 Oct 2020

Sponsor / Collaborator

Institut Gustave Roussy EURL

100 Clinical Results associated with Etidaligide

100 Translational Medicine associated with Etidaligide

100 Patents (Medical) associated with Etidaligide

Literatures (Medical) associated with Etidaligide

01 Oct 2024·CELL

Co-opting templated aggregation to degrade pathogenic tau assemblies and improve motor function

Article

Author: Sweeney, Paul W ; Papa, Guido ; James, Leo C ; Miller, Lauren V.C. ; Vaysburd, Marina ; Sweeney, Paul W. ; James, Leo C. ; Farnsworth, Jasmine ; Sanford, Sophie A.I. ; Katsinelos, Taxiarchis ; Miller, Lauren V C ; McEwan, William A. ; Benn, Jonathan ; Higginson, Katie ; Sanford, Sophie A I ; Huang, Melissa ; Franco, Catarina ; McEwan, William A ; Joyner, Holly ; Smith, Annabel ; Cheng, Shi

Protein aggregation causes a wide range of neurodegenerative diseases. Targeting and removing aggregates, but not the functional protein, is a considerable therapeutic challenge. Here, we describe a therapeutic strategy called "RING-Bait," which employs an aggregating protein sequence combined with an E3 ubiquitin ligase. RING-Bait is recruited into aggregates, whereupon clustering dimerizes the RING domain and activates its E3 function, resulting in the degradation of the aggregate complex. We exemplify this concept by demonstrating the specific degradation of tau aggregates while sparing soluble tau. Unlike immunotherapy, RING-Bait is effective against both seeded and cell-autonomous aggregation. RING-Bait removed tau aggregates seeded from Alzheimer's disease (AD) and progressive supranuclear palsy (PSP) brain extracts and was also effective in primary neurons. We used a brain-penetrant adeno-associated virus (AAV) to treat P301S tau transgenic mice, reducing tau pathology and improving motor function. A RING-Bait strategy could be applied to other neurodegenerative proteinopathies by replacing the Bait sequence to match the target aggregate.

01 Mar 2024·Molecular plant

Dt1 inhibits SWEET-mediated sucrose transport to regulate photoperiod-dependent seed weight in soybean

Article

Author: Huang, Xiang ; Hou, Xingliang ; Hu, Yilong ; Yue, Lin ; Kong, Lingping ; Liu, Baohui ; Yang, Yuhua ; Yu, Bin ; Kong, Fanjiang ; Liu, Hongjie ; Zhang, Chunyu ; Tan, Cuirong ; Yao, Xiani ; Li, Xiaoming ; Chen, Zhonghui ; Guan, Yuefeng ; Li, Haiyang

Soybean is a photoperiod-sensitive short-day crop whose reproductive period and yield are markedly affected by day-length changes. Seed weight is one of the key traits determining the soybean yield; however, the prominent genes that control the final seed weight of soybean and the mechanisms underlying the photoperiod's effect on this trait remain poorly understood. In this study, we identify SW19 as a major locus controlling soybean seed weight by QTL mapping and determine Dt1, an orthologous gene of Arabidopsis TFL1 that is known to govern the soybean growth habit, as the causal gene of the SW19 locus. We showed that Dt1 is highly expressed in developing seeds and regulates photoperiod-dependent seed weight in soybean. Further analyses revealed that the Dt1 protein physically interacts with the sucrose transporter GmSWEET10a to negatively regulate the import of sucrose from seed coat to the embryo, thus modulating seed weight under long days. However, Dt1 does not function in seed development under short days due to its very low expression. Importantly, we discovered a novel natural allelic variant of Dt1 (H4 haplotype) that decouples its pleiotropic effects on seed size and growth habit; i.e., this variant remains functional in seed development but fails to regulate the stem growth habit of soybean. Collectively, our findings provide new insights into how soybean seed development responds to photoperiod at different latitudes, offering an ideal genetic component for improving soybean's yield by manipulating its seed weight and growth habit.

09 Jan 2024·NAR cancer

The AsiDNA™ decoy mimicking DSBs protects the normal tissue from radiation toxicity through a DNA-PK/p53/p21-dependent G1/S arrest

Article

Author: Dubail, Maxime ; Becerra, Margaux ; Dutreix, Marie ; Fouillade, Charles ; Sesink, Anouk ; Berthault, Nathalie ; Ruan, Jia-Ling ; Heinrich, Sophie ; Jdey, Wael ; Girard, Pierre-Marie ; Leboucher, Sophie ; Petersson, Kristoffer

Abstract:

AsiDNA™, a cholesterol-coupled oligonucleotide mimicking double-stranded DNA breaks, was developed to sensitize tumour cells to radio- and chemotherapy. This drug acts as a decoy hijacking the DNA damage response. Previous studies have demonstrated that standalone AsiDNA™ administration is well tolerated with no additional adverse effects when combined with chemo- and/or radiotherapy. The lack of normal tissue complication encouraged further examination into the role of AsiDNA™ in normal cells. This research demonstrates the radioprotective properties of AsiDNA™. In vitro, AsiDNA™ induces a DNA-PK/p53/p21-dependent G1/S arrest in normal epithelial cells and fibroblasts that is absent in p53 deficient and proficient tumour cells. This cell cycle arrest improved survival after irradiation only in p53 proficient normal cells. Combined administration of AsiDNA™ with conventional radiotherapy in mouse models of late and early radiation toxicity resulted in decreased onset of lung fibrosis and increased intestinal crypt survival. Similar results were observed following FLASH radiotherapy in standalone or combined with AsiDNA™. Mechanisms comparable to those identified in vitro were detected both in vivo, in the intestine and ex vivo, in precision cut lung slices. Collectively, the results suggest that AsiDNA™ can partially protect healthy tissues from radiation toxicity by triggering a G1/S arrest in normal cells.

News (Medical) associated with Etidaligide

16 Feb 2023

·www.prnewswire.com

DelveInsight Evaluates a Robust Prostate Cancer Pipeline as 170+ Influential Pharma Players to Set Foot in the Domain

Prostate cancer is the most common cancer in men and accounts for the second most cancer deaths among men globally. The rise in the number of cases of prostate cancer has led to growing government funding and rising initiatives by public and private organizations to spread awareness about prostate cancer. The emergence of strong pipeline drugs and the presence of novel prostate cancer treatments are the prominent factors that will escalate the growth rate of the prostate cancer therapeutics market. LAS VEGAS, Feb. 16, 2023 /PRNewswire/ -- DelveInsight's ' Prostate Cancer Pipeline Insight – 2023 ' report provides comprehensive global coverage of available, marketed, and pipeline prostate cancer therapies in various stages of clinical development, major pharmaceutical companies are working to advance the pipeline space and future growth potential of the prostate cancer pipeline domain. Key Takeaways from the Prostate Cancer Pipeline Report DelveInsight's prostate cancer pipeline report depicts a robust space with 170+ active players working to develop 200+ pipeline therapies for prostate cancer treatment. Key prostate cancer companies such as Merck & Co, Pfizer, Orion, Zenith Epigenetics, ESSA Pharma, RhoVac, AstraZeneca, Advaxis, Inc., Tracon Pharmaceuticals Inc., Bristol-Myers Squibb, Laekna Limited, Bracco Diagnostics, Inc, Arvinas Inc, Epizyme, Regeneron Pharmaceuticals, Veru Inc., Eli Lilly and Company, Exelixis, Luye Pharma Group, Amgen, Innocrin Pharmaceutical, Bayer, Nymox Pharmaceutical, Matrix Biomed, Tavanta Therapeutics, Fortis Therapeutics, Inc., Janssen Research & Development, LLC, Clarity Pharmaceuticals, Leap Therapeutics, Hinova pharmaceuticals, Vaccitech, Cardiff Oncology, Suzhou Kintor Pharmaceuticals, Teneobio, Inc., Janux Therapeutics, Fusion Pharmaceuticals, Corbus Pharmaceuticals, BioXcel Therapeutics, Onxeo S.A, Ayala Pharmaceuticals, HOOKIPA Pharma, Nuvation Bio, Ambrx, enGene, Jemincare, CellVax Therapeutics, POINT Biopharma, Oncternal Therapeutics, Immunic AG, BioNTech SE, and others are evaluating new prostate cancer drugs to improve the treatment landscape. Promising prostate cancer pipeline therapies in various stages of development include Pembrolizumab, Talazoparib, ODM-208, ZEN 3694, EPI-7386, RV 001, Adavosertib, Capivasertib, ADXS31-142, TRC253, Nivolumab, LAE001, BR55, ARV-110, Tazemetostat, REGN5678, VERU-111, Abemaciclib, Cabozantinib, LY01005, Tarlatamab, VT-464, BAY2315497, NX-1207, MBM-02, TAVT-45, FOR46, JNJ-78278343, 64Cu-SAR-bisPSMA, DKN-01, HC-1119, ChAdOx1-MVA 5T4, Onvansertib, GT0918, TNB-585, JANX007, 225Ac-PSMA I&T, CRB-701, BXCL701, AsiDNA, ADXS-504, HB-300, NUV-868, ARX517, JMKX002992, Zilovertamab, IMU-935, BNT112, and others. In February 2023, Fusion Pharmaceuticals announced the acquisition from RadioMedix, Inc. of the investigational new drug application for an ongoing Phase II clinical trial (the "TATCIST" trial) evaluating 225Ac-PSMA I&T, a small molecule targeting prostate-specific membrane antigen ("PSMA") expressed on prostate cancers. Following the closing, the alpha-emitting radiopharmaceutical being evaluated in the TATCIST trial will be known as FPI-2265. In February 2023, Corbus Pharmaceuticals entered into an exclusive licensing agreement with CSPC Megalith Biopharmaceutical Co., Ltd, a subsidiary of CSPC Pharmaceutical Group Limited for development and commercialization of CRB-701 (SYS6002): a novel clinical-stage antibody drug conjugate (ADC) targeting Nectin-4. The agreement covers exclusive commercialization rights to CRB-701 in the United States, Canada, the European Union (including the European Free Trade Area), the United Kingdom, and Australia. CSPC will retain all rights to SYS6002 in the remaining global markets. Clinical development is underway and will focus on urothelial cancer and other Nectin-4-positive solid tumors, potentially including lung, breast and prostate cancer. In February 2023, BioXcel Therapeutics, Inc.reported full data from its Phase IIa trial of BXCL701, the Company's investigational, oral innate immune activator, in combination with KEYTRUDA (pembrolizumab) in small cell neuroendocrine (SCNC) variant metastatic castration-resistant prostate cancer (mCRPC) patients after at least one prior line of chemotherapy for locally advanced or metastatic prostate cancer. Results will be presented in a rapid abstract presentation and a poster presentation at the 2023 American Society of Clinical Oncology Genitourinary Cancers (ASCO GU) Symposium on February 16, 2023. In January 2023, Onxeo S.A. gave an update on the clinical development program of its first-in-class drug candidate AsiDNA. Onxeo has activated its first US clinical study site, Next Oncology San Antonio. This phase I/II multicenter, basket trial intends to assess the safety and preliminary activity of AsiDNA in combination with olaparib in patients with recurrent ovarian, breast, and metastatic castration-resistant prostate cancer (mCRPC) who have progressed on previous PARP inhibitor therapy. In October 2022, Ayala Pharmaceuticals, Inc. and Advaxis, Inc. entered into a definitive merger agreement. The merger would result in a combined company that will focus predominantly on the development and commercialization of Ayala's lead program AL102 for the treatment of desmoid tumors and Advaxis's candidate ADXS-504 in development for prostate cancer. In October 2022, Janux Therapeutics announced that the first patient had been dosed in Phase I clinical trial of JANX007 in subjects with metastatic castration-resistant prostate cancer (mCRPC). JANX007 is a prostate-specific membrane antigen (PSMA) directed T cell engager (TCE) and is the first product candidate utilizing Janux's TRACTr platform to be administered in humans. Request a sample and discover the recent advances in prostate cancer drug treatment @ Prostate Cancer Pipeline Report The prostate cancer pipeline report provides detailed profiles of pipeline assets, a comparative analysis of clinical and non-clinical stage prostate cancer drugs, inactive and dormant assets, a comprehensive assessment of driving and restraining factors, and an assessment of opportunities and risks in the prostate cancer clinical trial landscape. Prostate Cancer Overview Prostate cancer is a type of cancer that arises from the prostate gland. It is the second leading cause of cancer death in men in the United States. 1 in every 9 men will be diagnosed with prostate cancer during their lifetime. Prostate cancer will be diagnosed in nearly 250,000 men this year. Breaking away from a prostate tumor allows prostate cancer cells to spread. They can spread to other body parts by passing through blood vessels or lymph nodes. Cancer cells that have spread may attach to other tissues and grow to form new tumors, causing damage wherever they land. Prostate cancer symptoms vary from person to person. Some men have no symptoms at all. Common prostate cancer symptoms include blood in the urine or semen, painful ejaculation, pain or burning during urination, and others. A biopsy is a primary tool for prostate cancer diagnosis, but a doctor can use other tools to ensure that the biopsy is performed in the correct location. Doctors may, for example, use transrectal ultrasound or magnetic resonance imaging (MRI) to guide the biopsy. Find out more about drugs for prostate cancer @ New Prostate Cancer Drugs A snapshot of the Prostate Cancer Pipeline Drugs mentioned in the report: Learn more about the emerging prostate cancer pipeline therapies @ Prostate Cancer Clinical Trials Prostate Cancer Therapeutics Assessment The prostate cancer pipeline report proffers an integral view of prostate cancer emerging novel therapies segmented by stage, product type, molecule type, mechanism of action, and route of administration. Scope of the Prostate Cancer Pipeline Report Coverage: Global Therapeutic Assessment By Product Type: Mono, Combination, Mono/Combination Therapeutic Assessment By Clinical Stages: Discovery, Pre-clinical, Phase I, Phase II, Phase III Therapeutics Assessment By Route of Administration: Oral, Parenteral, Intravenous, Subcutaneous, Topical Therapeutics Assessment By Molecule Type: Monoclonal Antibody, Peptides, Polymer, Small molecule, Gene therapy Therapeutics Assessment By Mechanism of Action: Programmed cell death-1 receptor antagonists, Poly(ADP-ribose) polymerase inhibitors, Proto oncogene protein c-akt inhibitors, Tubulin inhibitors; Tubulin polymerisation inhibitors, Antioxidants; Blood coagulation factor inhibitors; Inflammation mediator inhibitors; RNA replicase inhibitors, Bromodomain and extraterminal domain protein inhibitors, Immunostimulants, DNA topoisomerase I inhibitors, Androgen receptor antagonists, Polycomb repressive complex 2 inhibitors Key Companies: Merck & Co, Pfizer, Orion, Zenith Epigenetics, ESSA Pharma, RhoVac, AstraZeneca, Advaxis, Inc., Tracon Pharmaceuticals Inc., Bristol-Myers Squibb, Laekna Limited, Bracco Diagnostics, Inc, Arvinas Inc, Epizyme, Regeneron Pharmaceuticals, Veru Inc., Eli Lilly and Company, Exelixis, Luye Pharma Group, Amgen, Innocrin Pharmaceutical, Bayer, Nymox Pharmaceutical, Matrix Biomed, Tavanta Therapeutics, Fortis Therapeutics, Inc., Janssen Research & Development, LLC, Clarity Pharmaceuticals, Leap Therapeutics, Hinova pharmaceuticals, Vaccitech, Cardiff Oncology, Suzhou Kintor Pharmaceuticals, Teneobio, Inc., Janux Therapeutics, Fusion Pharmaceuticals, Corbus Pharmaceuticals, BioXcel Therapeutics, Onxeo S.A, Ayala Pharmaceuticals, HOOKIPA Pharma, Nuvation Bio, Ambrx, enGene, Jemincare, CellVax Therapeutics, POINT Biopharma, Oncternal Therapeutics, Immunic AG, BioNTech SE, and others. Key Prostate Cancer Pipeline Therapies: Pembrolizumab, Talazoparib, ODM-208, ZEN 3694, EPI-7386, RV 001, Adavosertib, Capivasertib, ADXS31-142, TRC253, Nivolumab, LAE001, BR55, ARV-110, Tazemetostat, REGN5678, VERU-111, Abemaciclib, Cabozantinib, LY01005, Tarlatamab, VT-464, BAY2315497, NX-1207, MBM-02, TAVT-45, FOR46, JNJ-78278343, 64Cu-SAR-bisPSMA, DKN-01, HC-1119, ChAdOx1-MVA 5T4, Onvansertib, GT0918, TNB-585, JANX007, 225Ac-PSMA I&T, CRB-701, BXCL701, AsiDNA, ADXS-504, HB-300, NUV-868, ARX517, JMKX002992, Zilovertamab, IMU-935, BNT112, and others. Dive deep into rich insights for new drugs for prostate cancer treatment; visit @ Prostate Cancer Medications Table of Contents For further information on the prostate cancer pipeline therapeutics, reach out @ Prostate Cancer Drug Treatment Related Reports Metastatic Prostate Cancer Pipeline Metastatic Prostate Cancer Pipeline Insight – 2023 report provides comprehensive insights about the pipeline landscape, including clinical and non-clinical stage products and the key metastatic prostate cancer companies, including Veru, Tracon, Sotio, among others. Metastatic Castration-Sensitive Prostate Cancer Pipeline Metastatic Castration-Sensitive Prostate Cancer Pipeline Insight – 2023 report provides comprehensive insights about the pipeline landscape, including clinical and non-clinical stage products, and the key metastatic castration-sensitive prostate cancer companies, including Merck, Pfizer, Veru, Tracon, Sotio, among others. Metastatic Hormone-Refractory Prostate Cancer Pipeline Metastatic Hormone-Refractory Prostate Cancer Pipeline Insight – 2023 report provides comprehensive insights about the pipeline landscape, including clinical and non-clinical stage products, and the key metastatic hormone-refractory prostate cancer companies, including Merck, Pfizer, Veru, Tracon, Sotio, among others. Metastatic Castration-Resistant Prostate Cancer Epidemiology Forecast Metastatic Castration-Resistant Prostate Cancer Epidemiology Forecast – 2032 report delivers an in-depth understanding of the disease, historical and forecasted epidemiology as well as the metastatic castration-resistant prostate cancer epidemiology trends. Metastatic Castration-Resistant Prostate Cancer Market Metastatic Castration-Resistant Prostate Cancer Market Insights, Epidemiology, and Market Forecast – 2032 report deliver an in-depth understanding of the disease, historical and forecasted epidemiology, market share of the individual therapies, and key metastatic castration-resistant prostate cancer companies including Zenith Epigenetics, Surface Oncology, Opna-IO LLC, Regeneron Pharmaceuticals, Veru Inc, among others. 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It supports pharma companies by providing comprehensive end-to-end solutions to improve their performance. Get hassle-free access to all the healthcare and pharma market research reports through our subscription-based platform PharmDelve . Connect with us on LinkedIn |Facebook|Twitter Additionally, get in touch with our business executive to explore @ Healthcare Due Diligence Services Contact Us Shruti Thakur [email protected] +1(919)321-6187 Logo: SOURCE DelveInsight Business Research, LLP

Phase 1Phase 2ASCO

23 Nov 2021

·www.biospace.com

Onxeo Continues to Strengthen its Board of Directors

Bryan Giraudo, COO & CFO of U.S. biopharmaceutical company Gossamer Bio, joins the Company’s Board as independent member Paris (France), Nov. 23, 2021 (GLOBE NEWSWIRE) -- Onxeo S.A. (Euronext Growth Paris: ALONX, Nasdaq First North: ONXEO), « Onxeo », a clinical-stage biotechnology company specializing in the development of innovative drugs targeting tumor DNA Damage response (DDR) in oncology, today announced the appointment of Bryan Giraudo as independent member of the Board of Directors, replacing Thomas Hofstaetter after three mandates. Bryan Giraudo is both the Chief Operating Officer & Chief Financial Officer of Gossamer Bio, a U.S. listed biopharmaceutical company focused on developing and commercializing innovative therapeutics in the areas of immunology, inflammation and oncology. Previously, he served as Senior Managing Director at LEERINK Partners, where he was responsible for LEERINK’s Western North America and Asia life sciences investment banking practice. Prior to joining LEERINK Partners in 2009, Mr Giraudo was a Managing Director in Merrill Lynch’s Global Healthcare Investment Banking Division. Bryan Giraudo, new independent member of the Board of Directors of Onxeo, declared: "I am thrilledto joinOnxeo’sBoard of Directors, comprising outstanding experts in different clinicaland strategic fields.I have been impressed by the Company’stechnology targeting the tumor DNA Damage response and by the professionalism of the teams and I am happy to have the opportunity to support the development of the Company with my experience as an investment banker inthe US life sciences sector as well as executive manager in a US Biotech.” Shefali Agarwal, Chairwoman of the Board of Directors of Onxeo, commented: “On behalf of the entire Board of Directors I would like to thank Thomas Hofstaetter for his important contribution to the development of ONXEO during the past nine years. I am pleased to welcome Bryan Giraudo, whose arrival further strengthens our international focus and brings to the Company a strong financial experience and a broad network within the investment community in the US.” Judith Greciet, Chief Executive Officer of Onxeo, concluded: "With Bryan joining our Board of Directors today, I am glad that our Company was able to attract such an outstanding group of seasoned professionals. This clearly shows the growing interest and awareness of our unique approach in the field of DNA Damage Response internationally. The very complementary strategic advicefromour Board members will be instrumental for our ambitious development program with AsiDNA™, notably in the United States.” About Onxeo Onxeo (Euronext Paris, NASDAQ Copenhagen: ONXEO) is a clinical-stage biotechnology company developing innovative oncology drugs targeting tumor DNA-binding functions through unique mechanisms of action in the sought-after field of DNA Damage Response (DDR). The Company is focused on bringing early-stage first-in-class or disruptive compounds from translational research to clinical proof-of-concept, a value-creating inflection point appealing to potential partners. platON™ is Onxeo’s chemistry platform of oligonucleotides acting as decoy agonists, which generates new innovative compounds and broaden the Company’s product pipeline. AsiDNA™, the first compound from platON™, is a first-in-class, highly differentiated clinical stage candidate in the field of DNA Damage Response (DDR). Its decoy and agonist mechanism acting upstream of multiple DDR pathways results in distinctive antitumoral properties, notably the ability to prevent or abrogate tumor resistance to targeted therapies such as PARP inhibitors and a strong synergy with tumor DNA-damaging agents such as radio/chemotherapy. AsiDNA™ is currently in combination clinical studies in hard-to-treat solid tumors. OX401 is a new drug candidate from platON™, optimized to be a potent PARP agonist acting on both the DNA Damage Response and the activation of immune response, without inducing resistance. OX401 is undergoing preclinical proof-of-concept studies, alone and in combination with immunotherapies. For more information, please visit . Forward looking statements This communication expressly or implicitly contains certain forward-looking statements concerning Onxeo and its business. Such statements involve certain known and unknown risks, uncertainties and other factors, which could cause the actual results, financial condition, performance or achievements of Onxeo to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Onxeo is providing this communication as of this date and does not undertake to update any forward-looking statements contained herein as a result of new information, future events or otherwise. For a discussion of risks and uncertainties which could cause actual results, financial condition, performance or achievements of Onxeo to differ from those contained in the forward-looking statements, please refer to the risk factors described in the most recent Company’s registration document or in any other periodic financial report and in any other press release, which are available free of charge on the websites of the Company Group ( ) and/or the AMF ( ). Contacts Onxeo Valerie Leroy, Investor Relations investors@onxeo.com +33 1 45 58 76 00 Media Relations Nicolas Merigeau NewCap onxeo@newcap.eu +33 1 44 71 94 98 Investor Relations / Strategic Communication Dušan Orešanský / Emmanuel Huynh NewCap onxeo@newcap.eu +33 1 44 71 94 92 Certified Adviser for Nasdaq First North Kapital Partner info@kapitalpartner.dk +45 89 88 78 46

Innovative DrugFirst in ClassOligonucleotideFinancial Statement

29 Jul 2021

·www.globenewswire.com

Onxeo Announces the Appointment of Dr. Shefali Agarwal as

Danièle Guyot-Caparros, outgoing Chairwoman, remains an independent member of the Board of Directors and Chair of the Audit Committee Paris (France), July 29, 2021 (GLOBE NEWSWIRE) -- Onxeo S.A. (Euronext Growth Paris: ALONX, Nasdaq First North: ONXEO), « Onxeo », a clinical-stage biotechnology company specializing in the development of innovative drugs targeting tumor DNA Damage response (DDR) in oncology, today announced the appointment of Dr Shefali Agarwal as the Company’s Chairwoman of the Board of Directors. Danièle Guyot-Caparros, outgoing Chairwoman, remains an independent member of the Board of Directors and Chair of the Audit Committee. Dr. Shefali Agarwal, physician by training, is the Chief Medical and Development Officer at Epizyme, Inc, which develops novel epigenetic therapies for cancer and other serious diseases, where she leads global clinical development and regulatory strategy. Prior to joining Epizyme in 2018, Dr. Agarwal held leadership positions including clinical development and operations, and medical and regulatory affairs. In particular, she led for Tesaro, the clinical development and registration of the PARP inhibitor ZEJULA® (niraparib) in ovarian cancer. In addition, Dr. Agarwal is a member of the Board of Directors of three U.S. biotechnology companies, ITB Med (private), Gritstone Bio and Fate Therapeutics. She was appointed as an independent director of Onxeo in June 2021. Shefali Agarwal, incoming Chairwoman of the Board of Directors of Onxeo, comments: "I am very honored to be appointed with this new role on the Board of Directors of Onxeo and would like to thank all its members for the trust they have placed in me. I have been impressed by the innovative science and unique platform of Onxeo as well as by the management team. I look forward to sharing my experience in global development to the benefit of the Company’s promising pipeline and bringing innovative and effective medicine to cancer patients in need”. Danièle Guyot-Caparros, outgoing Chairwoman, added: "The Company is preparing to take a new strategic step, with the implementation of an ambitious clinical program and a reinforced presence in the United States. I am convinced that Dr. Agarwal's expertise and in-depth knowledge of the global biotech world will be a real asset for Onxeo and I look forward to continuing to support Onxeo in achieving its ambitious goals.” Judith Greciet, Chief Executive Officer of Onxeo, concludes: "I would like to acknowledge Danièle Guyot-Caparros' remarkable contribution to Onxeo since 2013, the year she was first appointed as a Director. During her tenure, Danièle has supported the Company in the realization of several major structural operations and I am delighted to continue to benefit from her support on the Board of Directors. The appointment of Dr. Shefali Agarwal as Chair marks a new stage in the development of Onxeo, resolutely focused on creating value through the clinical demonstration of the interest of our approach to DDR." About Onxeo Onxeo (Euronext Paris, NASDAQ Copenhagen: ONXEO) is a clinical-stage biotechnology company developing innovative oncology drugs targeting tumor DNA-binding functions through unique mechanisms of action in the sought-after field of DNA Damage Response (DDR). The Company is focused on bringing early-stage first-in-class or disruptive compounds from translational research to clinical proof-of-concept, a value-creating inflection point appealing to potential partners. platON™ is Onxeo’s chemistry platform of oligonucleotides acting as decoy agonists, which generates new innovative compounds and broaden the Company’s product pipeline. AsiDNA™, the first compound from platON™, is a first-in-class, highly differentiated clinical stage candidate in the field of DNA Damage Response (DDR). Its decoy and agonist mechanism acting upstream of multiple DDR pathways results in distinctive antitumoral properties, notably the ability to prevent or abrogate tumor resistance to targeted therapies such as PARP inhibitors and a strong synergy with tumor DNA-damaging agents such as radio/chemotherapy. AsiDNA™ is currently in combination clinical studies in hard-to-treat solid tumors. OX401 is a new drug candidate from platON™, optimized to be a potent PARP agonist acting on both the DNA Damage Response and the activation of immune response, without inducing resistance. OX401 is undergoing preclinical proof-of-concept studies, alone and in combination with immunotherapies. For more information, please visit . Forward looking statementsThis communication expressly or implicitly contains certain forward-looking statements concerning Onxeo and its business. Such statements involve certain known and unknown risks, uncertainties and other factors, which could cause the actual results, financial condition, performance or achievements of Onxeo to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Onxeo is providing this communication as of this date and does not undertake to update any forward-looking statements contained herein as a result of new information, future events or otherwise. For a discussion of risks and uncertainties which could cause actual results, financial condition, performance or achievements of Onxeo to differ from those contained in the forward-looking statements, please refer to the risk factors described in the most recent Company’s registration document or in any other periodic financial report and in any other press release, which are available free of charge on the websites of the Company Group () and/or the AMF (). Contacts Certified Adviser for Nasdaq First NorthKapital Partner 89 88 78 46

Innovative DrugFirst in ClassOligonucleotideFinancial Statement

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R&D Status

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Indication	Highest Phase	Country/Location	Organization	Date
Breast cancer recurrent	Phase 2	US	Valerio Therapeutics SA	20 Feb 2023
Metastatic castration-resistant prostate cancer	Phase 2	US	Valerio Therapeutics SA	20 Feb 2023
Ovarian Epithelial Carcinoma	Phase 2	US	Valerio Therapeutics SA	20 Feb 2023
Glioma	Phase 2	-	-	19 Apr 2021
Platinum-Sensitive Ovarian Carcinoma	Phase 2	FR	Institut Gustave Roussy EURL	05 Oct 2020
Ovarian Cancer	Phase 2	FR	-	08 Sep 2020
Melanoma	Phase 2	FR	Valerio Therapeutics SA	21 Oct 2011
Advanced cancer	Phase 1	BE	Valerio Therapeutics SA	05 Apr 2018
Advanced cancer	Phase 1	FR	Valerio Therapeutics SA	05 Apr 2018
Advanced Malignant Solid Neoplasm	Phase 1	BE	Valerio Therapeutics SA	05 Apr 2018

Clinical Result

Indication

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Evaluation

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Study	Phase	Population	Analyzed Enrollment	Group	Results	Evaluation	Publication Date


EUCTR2020-000825-18-FR (RevoCAN, ESMO2023) Manual	Phase 1/2	Ovarian Cancer	12	AsiDNA™ 600 mg + PARPi (dose de-escalation part)	syuancssju(aiwjflalcu) = rnewkgnxfr endbynsgtq (zciqxrkvvd )	Positive	22 Oct 2023
				AsiDNA™ 600 mg + PARPi	lzlzobyuxd(dcuaqenstp) = aylghcwtys gkljsqdybt (oqwsoflxrh ) View more
NCT03579628 (DRIIV-1, Pubmed \| Med J Aust) Manual	Phase 1	Advanced Malignant Solid Neoplasm	22	AsiDNA	bccxhnpvfb(eaaatxyqsf) = jbqudcmkfm xgyeuzipfu (rctbppykyc ) View more	Positive	01 Nov 2020
NCT01469455 (Pubmed \| Med J Aust) Manual	Phase 1	Melanoma	23	Radiotherapy+DT01	wrouhupprc(yosnpuyyso) = injection site reactions dbiijfxtyb (oonnrkwszk ) View more	Positive	24 May 2016
Phase 1 Study (ASTRO)	Phase 1	Melanoma	-	DT01	nsblnttrfx(wopcugbvei) = wmcxrfktds pfkfepgfvd (ztnnmpiday )	Positive	01 Nov 2015
				Radiation Therapy	nsblnttrfx(wopcugbvei) = lqvuxxutfm pfkfepgfvd (ztnnmpiday )
NCT01469455 (ASCO2015)	Phase 1	Melanoma	27	DT01 + Radiotherapy	(gaibdhidla) = udmhzbvuxk thdkdgkyzj (ircnaouday )	-	20 May 2015
				Radiotherapy	(gaibdhidla) = kztsaxzykx thdkdgkyzj (ircnaouday )

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