Polyendocrinopathies, Autoimmune

GOSSELIES, Belgium and NANTES, France, April 24, 2025 /PRNewswire/ -- AbolerIS Pharma ("AbolerIS"), a clinical-stage biopharmaceutical company committed to improving the lives of people suffering from autoimmune and inflammatory diseases, today announced the formation of its Scientific Advisory Board (SAB), which is comprised of industry experts in autoimmune and inflammatory disease drug development. The SAB will work closely with the AbolerIS team to advance its lead program, ABO21009, a humanized anti-CD45RC monoclonal antibody, through Phase 1 for rheumatoid arthritis (RA). Pending clinical proof-of-concept in RA, the Company intends to broaden its development into other autoimmune diseases. Durable, long-term remission remains elusive in many autoimmune diseases such as RA. The SAB will also assist the AbolerIS management with the planned development of additional indications for ABO21009 and the expansion and subsequent development of the Company's portfolio. The members of our Scientific Advisory Board combine deep preclinical, translational and clinical expertise in a broad range of autoimmune diseases. Ronald Van Brempt, MD, Chief Medical Officer of AbolerIS, commented: "We are privileged to work with Dirk, Mary, Georg, Rene, Michel, Edouard, and Ignacio, to bring a novel therapy like ABO21009 to patients suffering from the debilitating effects of autoimmune disease. These recognized leaders bring a great understanding of inflammatory and autoimmune diseases, as well as deep expertise in advancing scientific breakthroughs towards the clinic. We look forward to their contributions as we advance ABO21009 in the clinic for RA and additional indications like Sjögren`s Disease, Graft-versus-Host Disease, Inflammatory Bowel Disease, and Autoimmune Polyendocrinopathy-Candidiasis-Ectodermal Dystrophy as we continue to grow our company." Members of the AbolerIS Scientific Advisory Board are listed below. Complete biographies are available on the AbolerIS website. Dirk Elewaut, MD, PhD, Chairman of the Scientific Advisory Board: Full Professor of Rheumatology and Immunology and Chair of the Department of Rheumatology and Immunology at Ghent University Hospital, Ghent, Belgium VIB Group leader, VIB-UGent Center for Inflammation Research, Ghent, Belgium "I have dedicated my career to advancing research in immunology and inflammatory disease, and the potential of ABO21009 is very promising. I am honored to lead the world-class leaders on the SAB with the goal to advance AbolerIS' research toward patients in need," commented Dr. Elewaut. Mary Crow, MD, PhD Physician-in-Chief Emeritus at Hospital for Special Surgery, Professor of Medicine at Weill Cornell Medical College, and Professor of Immunology in its Graduate School of Medical Sciences, New York, USA Senior Scientist, Co-Director of the Mary Kirkland Center for Lupus Research, and Director of the Autoimmunity and Inflammation Program at Hospital for Special Surgery's Research Institute (holder of the Benjamin M. Rosen Chair in Immunology and Inflammation Research), New York, USA Georg Schett, MD, PhD Vice President Research, Chair of Internal Medicine III - Rheumatology and Immunology, Uniklinikum Erlangen - Friedrich Alexander University, Erlangen-Nurnberg, Germany Rene Toes, PhD Full Professor of Experimental Rheumatology, Leiden University Medical Center (LUMC), Leiden, the Netherlands Head of the Laboratory of Dept. of Rheumatology, LUMC, Leiden, the Netherlands Michel Goldman, MD, PhD Founder and the President of the I³h Institute and Professor of Immunology and Pharmacotherapy at the Université libre de Bruxelles (ULB) Executive Director Emeritus of the Innovative Medicines Initiative (IMI) from 2009 to 2014 Head Emeritus of the Department of Immunology at Erasme Hospital and Director Emeritus of the Institute for Medical Immunology (ULB) Edouard Louis, MD, PhD Professor of Gastroenterology and Head of the Gastroenterology department at Liège University hospital. Liege, Belgium Dean of the faculty of Medicine at Liège University, Liege, Belgium Ignacio Anegon, MD, PhD Director of Research (DRE) at INSERM-CRTI Director Transgenesis Rat ImmunoPhenomic facility, Co-Founder of AbolerIS Pharma About ABO21009 ABO21009 is the Company's lead monoclonal antibody program stemming from its novel immunomodulatory approach to treating autoimmune and inflammatory diseases. ABO21009 is effective through a multi-pronged mechanism of action, selectively depleting CD45RC-positive cells that are actively sustaining the autoimmune response in Rheumatoid Arthritis. These CD45RC-positive cells are present in the T-, B-, and NK-cell compartments of the adaptive immune system. By selectively depleting these cells, the cells driving the autoimmune disease are taken out of the immune cell population. ABO21009 also spares regulatory T-cells, which can unleash their full potential and suppress ongoing and future autoimmune activity in the adaptive immune system. Treatment with ABO21009 may enable a long-lasting and durable remission in RA, which will improve the patient experience and lessen the burden of side effects from currently available therapeutic options. About AbolerIS Pharma AbolerIS Pharma is a clinical-stage biopharmaceutical company committed to improving the lives of patients suffering from autoimmune and inflammatory diseases. The Company is advancing potentially best-in-class and first-in-class immunomodulatory antibodies that target CD45RC, a key regulator of the immune system. AbolerIS' lead program, ABO21009, is designed to demonstrate broad efficacy in multiple autoimmune and inflammatory disorders with large unmet medical needs including rheumatoid arthritis (RA), inflammatory bowel disease (IBD), and organ transplantation. At AbolerIS, we envision a future where patients can enjoy long-term remission and improved quality of life through therapies that are effective and safe. The Company is based in Gosselies, Belgium and Nantes, France, and is backed by a syndicate of experienced investors, which includes Criteria Bio Ventures, Sound Bioventures, Newton Biocapital, WE, Sambrinvest, SFPIM and Sham Innovation Santé. For more information, please visit to learn more about our transformative approach to immunotherapies and follow us on LinkedIn. Media & Investor Contact Amy Conrad Juniper Point [email protected] SOURCE AbolerIS Pharma WANT YOUR COMPANY'S NEWS FEATURED ON PRNEWSWIRE.COM? 440k+ Newsrooms & Influencers 9k+ Digital Media Outlets 270k+ Journalists Opted In GET STARTED

Based on the Phase 3 CheckMate-9DW trial, Opdivo plus Yervoy demonstrated a statistically significant overall survival benefit compared to investigator’s choice of lenvatinib or sorafenib 1 In the trial, 38% of patients were still alive at 3 years with this dual immunotherapy vs. 24% with the comparator arm 1 PRINCETON, N.J.--(BUSINESS WIRE)-- $BMY #BMS -- Bristol Myers Squibb (NYSE: BMY) today announced that the U.S. Food and Drug Administration (FDA) approved Opdivo ® (nivolumab) plus Yervoy ® (ipilimumab) as a first-line treatment for adult patients with unresectable or metastatic hepatocellular carcinoma (HCC), the most common primary liver cancer. 1,2 This approval is based on the results from the global Phase 3 randomized, open-label CheckMate-9DW trial evaluating the combination of Opdivo plus Yervoy compared to investigator’s choice of tyrosine kinase inhibitor monotherapy (lenvatinib or sorafenib) in patients with unresectable or metastatic HCC who have not received prior systemic therapy. 1 In the trial, Opdivo plus Yervoy demonstrated statistically significant overall survival (OS) and overall response rate (ORR) vs the comparator arm. 1 It is the only trial supporting an FDA approval to show superior results against this comparator arm. 1 “The CheckMate-9DW approval is an important advancement for patients, considering the incidence of liver cancer has tripled in the last four decades, yet prognosis for HCC patients remains poor,” said Aiwu Ruth He, MD, PhD, a CheckMate-9DW study investigator while at MedStar Georgetown University Hospital. 3,4 “The availability of a new first-line treatment option that demonstrated a deep response can offer adults with this form of liver cancer long-term overall survival and may help address an unmet need. 1,5,6 Given the strength of evidence from the trial, especially considering the selection and performance of a strong comparator arm, I believe that Opdivo plus Yervoy has the potential to become a standard of care for the first-line treatment of patients with unresectable or metastatic HCC.” 1 In the CheckMate-9DW trial, in which 85% of patients in the comparator arm were treated with lenvatinib and 15% were treated with sorafenib, mOS with Opdivo plus Yervoy (n=335) was 23.7 months (95% CI: 18.8-29.4) vs. 20.6 months (95% CI: 17.5-22.5) with lenvatinib or sorafenib (n=333; HR=0.79; 95% CI: 0.65-0.96 P =0.0180), reducing the risk of death by 21%. 1 Opdivo plus Yervoy showed an OS rate of 38% at three years vs. 24% with lenvatinib or sorafenib monotherapy. 1 The trial also showed a deeper response with Opdivo plus Yervoy, demonstrating an ORR of 36.1% (95% CI: 31-41.5) compared to 13.2% (95% CI: 9.8-17.3; P 20% of patients treated with Opdivo plus Yervoy were rash, pruritus, fatigue, and diarrhea. Fatal adverse reactions occurred in 12 (3.6%) patients who received Opdivo plus Yervoy ; these included 4 (1.2%) patients who died due to immune-mediated or autoimmune hepatitis and 4 (1.2%) patients who died of hepatic failure. 1 Permanent discontinuation due to an adverse reaction occurred in 27% of patients treated with Opdivo in combination with Yervoy . Adverse reactions leading to permanent discontinuation in >1% of patients included immune-mediated hepatitis (1.8%), diarrhea/colitis (1.8%), and hepatic failure (1.2%). 1 About Hepatocellular Carcinoma Hepatocellular carcinoma (HCC) is a type of primary liver cancer and is the most common form of liver cancer in adults. 2 Liver cancer is the sixth leading cause of cancer deaths in the United States. 8 HCC is often diagnosed at an advanced stage and is usually associated with poor prognosis with limited effective treatment options. 5,9,10 About 42,240 people in the United Stated will be diagnosed and about 30,090 people will die of liver cancer in 2025. 3 The incidence rates of liver cancer have tripled in the U.S. since 1980 and deaths have doubled since then. 3 HCC typically develops in patients with hepatitis virus infection or cirrhosis. 11 While most cases of HCC are caused by hepatitis B virus or hepatitis C virus infections, metabolic syndrome and metabolic dysfunction-associated steatohepatitis are rising in prevalence and expected to contribute to increased rates of HCC. 11 INDICATIONS OPDIVO ® (nivolumab), in combination with YERVOY ® (ipilimumab), is indicated for the first-line treatment of adult patients with unresectable or metastatic hepatocellular carcinoma (HCC). OPDIVO ® (nivolumab), in combination with YERVOY ® (ipilimumab), is indicated for the treatment of adult patients with unresectable or metastatic hepatocellular carcinoma (HCC) who have been previously treated with sorafenib. IMPORTANT SAFETY INFORMATION Severe and Fatal Immune-Mediated Adverse Reactions Immune-mediated adverse reactions listed herein may not include all possible severe and fatal immune- mediated adverse reactions. Immune-mediated adverse reactions, which may be severe or fatal, can occur in any organ system or tissue. While immune-mediated adverse reactions usually manifest during treatment, they can also occur after discontinuation of OPDIVO or YERVOY. Early identification and management are essential to ensure safe use of OPDIVO or YERVOY and YERVOY. Monitor for signs and symptoms that may be clinical manifestations of underlying immune-mediated adverse reactions. Evaluate clinical chemistries including liver enzymes, creatinine, adrenocorticotropic hormone (ACTH) level, and thyroid function at baseline and periodically during treatment with OPDIVO and before each dose of YERVOY. In cases of suspected immune-mediated adverse reactions, initiate appropriate workup to exclude alternative etiologies, including infection. Institute medical management promptly, including specialty consultation as appropriate. Withhold or permanently discontinue OPDIVO and YERVOY depending on severity (please see section 2 Dosage and Administration in the accompanying Full Prescribing Information). In general, if OPDIVO and YERVOY or YERVOY interruption or discontinuation is required, administer systemic corticosteroid therapy (1 to 2 mg/kg/day prednisone or equivalent) until improvement to Grade 1 or less. Upon improvement to Grade 1 or less, initiate corticosteroid taper and continue to taper over at least 1 month. Consider administration of other systemic immunosuppressants in patients whose immune-mediated adverse reactions are not controlled with corticosteroid therapy. Toxicity management guidelines for adverse reactions that do not necessarily require systemic steroids (e.g., endocrinopathies and dermatologic reactions) are discussed below. Immune-Mediated Pneumonitis OPDIVO and YERVOY can cause immune-mediated pneumonitis. The incidence of pneumonitis is higher in patients who have received prior thoracic radiation. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, immune-mediated pneumonitis occurred in 7% (31/456) of patients, including Grade 4 (0.2%), Grade 3 (2.0%), and Grade 2 (4.4%). In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, immune-mediated pneumonitis occurred in 7% (31/456) of patients, including Grade 4 (0.2%), Grade 3 (2.0%), and Grade 2 (4.4%). Immune-Mediated Colitis OPDIVO and YERVOY can cause immune-mediated colitis, which may be fatal. A common symptom included in the definition of colitis was diarrhea. Cytomegalovirus (CMV) infection/reactivation has been reported in patients with corticosteroid-refractory immune-mediated colitis. In cases of corticosteroid-refractory colitis, consider repeating infectious workup to exclude alternative etiologies. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, immune-mediated colitis occurred in 25% (115/456) of patients, including Grade 4 (0.4%), Grade 3 (14%) and Grade 2 (8%). Immune-Mediated Hepatitis and Hepatotoxicity OPDIVO and YERVOY can cause immune-mediated hepatitis. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, immune-mediated hepatitis occurred in 15% (70/456) of patients, including Grade 4 (2.4%), Grade 3 (11%), and Grade 2 (1.8%). Immune-Mediated Endocrinopathies OPDIVO and YERVOY can cause primary or secondary adrenal insufficiency, immune-mediated hypophysitis, immune-mediated thyroid disorders, and Type 1 diabetes mellitus, which can present with diabetic ketoacidosis. Withhold OPDIVO and YERVOY depending on severity (please see section 2 Dosage and Administration in the accompanying Full Prescribing Information). For Grade 2 or higher adrenal insufficiency, initiate symptomatic treatment, including hormone replacement as clinically indicated. Hypophysitis can present with acute symptoms associated with mass effect such as headache, photophobia, or visual field defects. Hypophysitis can cause hypopituitarism; initiate hormone replacement as clinically indicated. Thyroiditis can present with or without endocrinopathy. Hypothyroidism can follow hyperthyroidism; initiate hormone replacement or medical management as clinically indicated. Monitor patients for hyperglycemia or other signs and symptoms of diabetes; initiate treatment with insulin as clinically indicated. In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, adrenal insufficiency occurred in 8% (35/456), including Grade 4 (0.2%), Grade 3 (2.4%), and Grade 2 (4.2%). In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, hypophysitis occurred in 9% (42/456), including Grade 3 (2.4%) and Grade 2 (6%). In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, hyperthyroidism occurred in 9% (42/456) of patients, including Grade 3 (0.9%) and Grade 2 (4.2%). In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, hypothyroidism occurred in 20% (91/456) of patients, including Grade 3 (0.4%) and Grade 2 (11%). Immune-Mediated Nephritis with Renal Dysfunction OPDIVO and YERVOY can cause immune-mediated nephritis. Immune-Mediated Dermatologic Adverse Reactions OPDIVO can cause immune-mediated rash or dermatitis. Exfoliative dermatitis, including Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and drug rash with eosinophilia and systemic symptoms (DRESS) has occurred with PD-1/PD-L1 blocking antibodies. Topical emollients and/or topical corticosteroids may be adequate to treat mild to moderate nonexfoliative rashes. YERVOY can cause immune-mediated rash or dermatitis, including bullous and exfoliative dermatitis, SJS, TEN, and DRESS. Topical emollients and/or topical corticosteroids may be adequate to treat mild to moderate non-bullous/exfoliative rashes. Withhold or permanently discontinue OPDIVO and YERVOY depending on severity (please see section 2 Dosage and Administration in the accompanying Full Prescribing Information). In patients receiving OPDIVO 1 mg/kg with YERVOY 3 mg/kg every 3 weeks, immune-mediated rash occurred in 28% (127/456) of patients, including Grade 3 (4.8%) and Grade 2 (10%). Other Immune-Mediated Adverse Reactions The following clinically significant immune-mediated adverse reactions occurred at an incidence of 20%) in patients receiving OPDIVO with YERVOY (n=332) were rash (36%), pruritus (34%), fatigue (33%), and diarrhea (25%). In CheckMate-040, the most common adverse reactions (≥20%) in patients receiving OPDIVO with YERVOY (n=49) were rash (53%), pruritus (53%), musculoskeletal pain (41%), diarrhea (39%), cough (37%), decreased appetite (35%), fatigue (27%), pyrexia (27%), abdominal pain (22%), headache (22%), nausea (20%), dizziness (20%), hypothyroidism (20%), and weight decreased (20%). Please see U.S. Full Prescribing Information for OPDIVO and YERVOY . Clinical Trials and Patient Populations CheckMate-9DW – hepatocellular carcinoma, in combination with YERVOY; CheckMate-040 – hepatocellular carcinoma, in combination with YERVOY, after prior treatment with sorafenib. Bristol Myers Squibb: Creating a Better Future for People with Cancer Bristol Myers Squibb is inspired by a single vision — transforming patients’ lives through science. The goal of the company’s cancer research is to deliver medicines that offer each patient a better, healthier life and to make cure a possibility. Building on a legacy across a broad range of cancers that have changed survival expectations for many, Bristol Myers Squibb researchers are exploring new frontiers in personalized medicine and, through innovative digital platforms, are turning data into insights that sharpen their focus. Contacts Bristol Myers Squibb Media Inquiries: media@bms.com Investors: investor.relations@bms.com Read full story here

UNLOXCYT™ (cosibelimab-ipdl) approved by U.S. FDA as first and only anti-PD-L1 treatment for advanced cutaneous squamous cell carcinomaWALTHAM, Mass., March 28, 2025 (GLOBE NEWSWIRE) -- Checkpoint Therapeutics, Inc. (“Checkpoint”) (Nasdaq: CKPT), a commercial-stage immunotherapy and targeted oncology company, today announced financial results for the fiscal year ended December 31, 2024, and recent corporate updates. Recent Corporate Updates: In March 2025, Checkpoint announced that it entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Sun Pharmaceutical Industries, Inc. (“Sun Pharma”), and a wholly owned subsidiary of Sun Pharma, with Checkpoint continuing as the surviving corporation of the transaction and a wholly owned subsidiary of Sun Pharma (the “Merger”). The total transaction value of the Merger, including the upfront cash payment and the maximum value of the contingent value right (“CVR”), is up to approximately $416 million, and the Merger is expected to be completed in the second quarter of 2025. The transaction is subject to customary closing conditions, including required regulatory approvals and approval by the holders of a majority of the voting power of outstanding shares of Checkpoint common stock, and by the holders of a majority of the shares of Checkpoint common stock that are not held by Fortress Biotech, Inc. or by certain other affiliates of Checkpoint.In December 2024, Checkpoint announced that the U.S. Food and Drug Administration (“FDA”) approved UNLOXCYTTM (cosibelimab-ipdl) for the treatment of adults with metastatic cutaneous squamous cell carcinoma (“cSCC”) or locally advanced cSCC who are not candidates for curative surgery or curative radiation. UNLOXCYT is the first and only programmed death ligand-1 (“PD-L1”) blocking antibody to receive FDA marketing approval for this indication.In September 2024, Checkpoint presented longer-term data from its pivotal trial of cosibelimab in locally advanced and metastatic cSCC during the European Society for Medical Oncology (“ESMO”) Congress 2024. Longer-term results for cosibelimab presented at the ESMO Congress demonstrate a deepening of response over time, with higher objective response and complete response rates than initially observed at the primary analyses. A copy of the ESMO poster can be found on the Publications page of Checkpoint’s website. Financial Results: Cash Position: As of December 31, 2024, Checkpoint’s cash and cash equivalents totaled $6.6 million, compared to $4.9 million at December 31, 2023, an increase of $1.7 million. Subsequent to the end of the fiscal year, Checkpoint received approximately $38.1 million in cash proceeds through the exercise of existing warrants.R&D Expenses: Research and development expenses for the year ended December 31, 2024, were $36.2 million, compared to $43.6 million for the year ended December 31, 2023, a decrease of $7.4 million. Research and development expenses for the year ended December 31, 2024, included $12.9 million of non-cash stock expenses, compared to $4.6 million in non-cash stock expenses for the year ended December 31, 2023.G&A Expenses: General and administrative expenses for the year ended December 31, 2024, were $20.1 million, compared to $8.7 million for the year ended December 31, 2023, an increase of $11.4 million. General and administrative expenses for the year ended December 31, 2024, included $11.0 million of non-cash stock expenses, compared to $2.7 million in non-cash stock expenses for the year ended December 31, 2023.Net Loss: Net loss attributable to common stockholders for the year ended December 31, 2024, was $56.2 million, or $1.42 per share, compared to a net loss of $51.8 million, or $3.17 per share, for the year ended December 31, 2023. About UNLOXCYTTM (cosibelimab-ipdl) UNLOXCYT is a human immunoglobulin G1 monoclonal antibody that binds PD-L1 and blocks the interaction between PD-L1 and its T cell receptors, PD-1 and B7.1. This interaction releases the inhibitory effects of PD-L1 on the anti-tumor immune response. UNLOXCYT has also been shown to induce antibody-dependent cell-mediated cytotoxicity. INDICATION and IMPORANT SAFETY INFORMATION INDICATION UNLOXCYT (cosibelimab-ipdl) is indicated for the treatment of adults with metastatic cSCC or locally advanced cSCC who are not candidates for curative surgery or curative radiation. IMPORTANT SAFETY INFORMATION Severe and Fatal Immune-Mediated Adverse Reactions Immune-mediated adverse reactions listed herein may not include all possible severe and fatal immune-mediated adverse reactions. Immune-mediated adverse reactions, which can be severe or fatal, can occur in any organ system or tissue, and occur at any time after starting a PD-1/PD-L1–blocking antibody, including UNLOXCYT. While immune-mediated adverse reactions usually manifest during treatment, they can also manifest after discontinuation of PD-1/PD-L1–blocking antibodies. Immune-mediated adverse reactions affecting more than one body system can occur simultaneously.Monitor closely for signs and symptoms of immune-mediated adverse reactions. Evaluate liver enzymes, creatinine, and thyroid function tests at baseline and periodically during treatment. In cases of suspected immune-mediated adverse reactions, initiate appropriate workup to exclude alternative etiologies, including infection. Institute medical management promptly, including specialty consultation as appropriate.Withhold or permanently discontinue UNLOXCYT depending on the severity of the adverse reaction (see Dosage and Administration in Prescribing Information). In general, if UNLOXCYT requires interruption or discontinuation, administer systemic corticosteroids (1 to 2 mg/kg/day prednisone or equivalent) until improvement to Grade 1 or less. Upon improvement to Grade 1 or less, initiate corticosteroid taper and continue to taper over at least 1 month. Consider administration of other systemic immunosuppressants in patients whose immune-mediated adverse reaction is not controlled with corticosteroids. Immune-Mediated Pneumonitis UNLOXCYT can cause immune-mediated pneumonitis. In patients treated with other PD-1/PD-L1–blocking antibodies, the incidence of pneumonitis is higher in patients who have received prior thoracic radiation. Immune-mediated pneumonitis occurred in 1% (3/223, Grade 2) of patients receiving UNLOXCYT. Immune-Mediated Colitis UNLOXCYT can cause immune-mediated colitis, which may present with diarrhea, abdominal pain, and lower gastrointestinal bleeding. Cytomegalovirus infection/reactivation has occurred in patients with corticosteroid-refractory immune-mediated colitis treated with PD-1/PD-L1–blocking antibodies. In cases of corticosteroid-refractory colitis, consider repeating infectious workup to exclude alternative etiologies. Immune-mediated colitis occurred in 0.4% (1/223, Grade 1) of patients receiving UNLOXCYT. Immune-Mediated Hepatitis UNLOXCYT can cause immune-mediated hepatitis. Immune-Mediated EndocrinopathiesAdrenal Insufficiency UNLOXCYT can cause primary or secondary adrenal insufficiency. For Grade 2 or higher adrenal insufficiency, initiate symptomatic treatment per institutional guidelines, including hormone replacement as clinically indicated. Withhold or permanently discontinue UNLOXCYT depending on severity. Adrenal insufficiency occurred in 0.9% (2/223) of patients receiving UNLOXCYT, including Grade 2 in 0.4% (1/223) of patients. Hypophysitis UNLOXCYT can cause immune-mediated hypophysitis. Hypophysitis can present with acute symptoms associated with mass effect such as headache, photophobia, or visual field cuts. Hypophysitis can cause hypopituitarism. Initiate hormone replacement as clinically indicated. Withhold or permanently discontinue UNLOXCYT depending on severity. Thyroid Disorders UNLOXCYT can cause immune-mediated thyroid disorders. Thyroiditis can present with or without endocrinopathy. Hypothyroidism can follow hyperthyroidism. Initiate hormone replacement or medical management of hyperthyroidism as clinically indicated. Withhold or permanently discontinue UNLOXCYT depending on severity. Hypothyroidism occurred in 10% (22/223) of patients receiving UNLOXCYT, including Grade 2 in 5% (10/223) of patients. Hyperthyroidism occurred in 5% (12/223) of patients receiving UNLOXCYT, including Grade 2 in 0.4% (1/223) of patients. Type 1 Diabetes Mellitus, Which Can Present with Diabetic Ketoacidosis UNLOXCYT can cause type 1 diabetes mellitus, which can present with diabetic ketoacidosis. Monitor patients for hyperglycemia or other signs and symptoms of diabetes. Initiate treatment with insulin as clinically indicated. Withhold or permanently discontinue UNLOXCYT depending on severity. Immune-Mediated Nephritis with Renal Dysfunction UNLOXCYT can cause immune-mediated nephritis. Immune-Mediated Dermatologic Adverse Reactions UNLOXCYT can cause immune-mediated rash or dermatitis. Bullous and exfoliative dermatitis, including Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and drug rash with eosinophilia and systemic symptoms (DRESS), have occurred with PD-1/PD-L1–blocking antibodies. Topical emollients and/or topical corticosteroids may be adequate to treat mild to moderate non-bullous/exfoliative rashes. Withhold or permanently discontinue UNLOXCYT depending on severity. Immune-mediated dermatologic adverse reactions occurred in 7% (15/223) of patients receiving UNLOXCYT, including Grade 3 in 0.9% (2/223) of patients and Grade 2 in 4% (9/223) of patients. Other Immune-Mediated Adverse Reactions The following clinically significant immune-mediated adverse reactions occurred in <1% of the 223 patients who received UNLOXCYT or were reported with the use of other PD-1/PD-L1–blocking antibodies. Severe or fatal cases have been reported for some of these adverse reactions. Cardiac/Vascular: Myocarditis, pericarditis, vasculitis.Nervous System: Meningitis, encephalitis, myelitis and demyelination, myasthenic syndrome/myasthenia gravis (including exacerbation), Guillain-Barre syndrome, nerve paresis, autoimmune neuropathy.Ocular: Uveitis, iritis, other ocular inflammatory toxicities. Some cases can be associated with retinal detachment. Various grades of visual impairment to include blindness can occur. If uveitis occurs in combination with other immune-mediated adverse reactions, consider a Vogt-Koyanagi-Harada–like syndrome, as this may require treatment with systemic steroids to reduce the risk of permanent vision loss.Gastrointestinal: Pancreatitis, including increases in serum amylase and lipase levels, gastritis, duodenitis.Musculoskeletal and Connective Tissue: Myositis/polymyositis, rhabdomyolysis and associated sequelae including renal failure, arthritis, polymyalgia rheumatica.Endocrine: Hypoparathyroidism.Other (Hematologic/Immune): Autoimmune hemolytic anemia, aplastic anemia, hemophagocytic lymphohistiocytosis, systemic inflammatory response syndrome, histiocytic necrotizing lymphadenitis (Kikuchi lymphadenitis), sarcoidosis, immune thrombocytopenia, solid organ transplant rejection, other transplant (including corneal graft) rejection. Infusion-Related Reactions UNLOXCYT can cause severe or life-threatening infusion-related reactions. Infusion-related infusion reactions were reported in 11% (24/223) of patients, including Grade 2 in 5.8% (13/223) of patients receiving UNLOXCYT.Monitor patients for signs and symptoms of infusion-related reactions. Interrupt or slow the rate of infusion or permanently discontinue UNLOXCYT based on severity of reaction. Consider premedication with an antipyretic and/or an antihistamine for patients who have had previous systemic reactions to infusions of therapeutic proteins. Complications of Allogeneic HSCT Fatal and other serious complications can occur in patients who receive allogeneic hematopoietic stem cell transplantation (HSCT) before or after being treated with a PD-1/PD-L1–blocking antibody. Transplant-related complications include hyperacute graft-versus-host disease (GVHD), acute GVHD, chronic GVHD, hepatic veno-occlusive disease after reduced intensity conditioning, and steroid-requiring febrile syndrome (without an identified infectious cause). These complications may occur despite intervening therapy between PD-1/PD-L1 blockade and allogeneic HSCT. Follow patients closely for evidence of transplant-related complications and intervene promptly. Consider the benefit versus risks of treatment with a PD-1/PD-L1–blocking antibody prior to or after an allogeneic HSCT. Embryo-Fetal Toxicity Based on its mechanism of action, UNLOXCYT can cause fetal harm when administered to a pregnant woman. Animal studies have demonstrated that inhibition of the PD-1/PD-L1 pathway can lead to increased risk of immune-mediated rejection of the developing fetus, resulting in fetal death. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with UNLOXCYT and for 4 months after the last dose. Common Adverse Reactions The most common adverse reactions (≥10%) were fatigue, musculoskeletal pain, rash, diarrhea, hypothyroidism, constipation, nausea, headache, pruritus, edema, localized infection, and urinary tract infection. Please see full Prescribing Information. About Checkpoint Therapeutics Checkpoint Therapeutics, Inc. is a commercial-stage immunotherapy and targeted oncology company focused on the acquisition, development and commercialization of novel treatments for patients with solid tumor cancers. Checkpoint has received approval from the FDA for UNLOXCYTTM (cosibelimab-ipdl) for the treatment of adults with metastatic cSCC or locally advanced cSCC who are not candidates for curative surgery or curative radiation. Additionally, Checkpoint is evaluating its lead investigational small-molecule, targeted anti-cancer agent, olafertinib (formerly CK-101), a third-generation epidermal growth factor receptor (“EGFR”) inhibitor, as a potential new treatment for patients with EGFR mutation-positive non-small cell lung cancer. Checkpoint is headquartered in Waltham, MA and was founded by Fortress Biotech, Inc. (Nasdaq: FBIO). For more information, visit www.checkpointtx.com. Forward‐Looking Statements This press release contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, each as amended, that involve a number of risks and uncertainties. For those statements, we claim the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. Such statements include, but are not limited to, express or implied, statements regarding the Merger and related matters, including the benefits of and timeline for closing the Merger, any payments under the CVRs, prospective performance and opportunities, post-closing operations and the outlook for the companies’ businesses; projections of or targets for revenues, costs, income (or loss), earnings per share, capital expenditures, dividends, capital structure, net financials and other financial measures; expectations for the timing and commercial launch and availability of UNLOXCYTTM (cosibelimab-ipdl) for the treatment of adults with metastatic cSCC or locally advanced cSCC who are not candidates for curative surgery or curative radiation; the commercial potential of UNLOXCYT; anticipated healthcare professional and patient acceptance and use of UNLOXCYT for the FDA-approved indication; and assumptions underlying or relating to such statements. Factors that may affect future results and may cause these forward-looking statements to be inaccurate include, but are not limited to: uncertainties as to the timing of completion of the Merger; uncertainties as to whether Checkpoint’s stockholders will vote to approve the transaction; the possibility that competing offers will be made; the possibility that various closing conditions for the transaction may not be satisfied or waived, including that a governmental entity may prohibit, delay or refuse to grant approval for the consummation of the transaction (or only grant approval subject to adverse conditions or limitations); the possibility that the proposed transaction may not be completed in the time frame expected by Checkpoint, or at all; failure to realize the anticipated benefits of the proposed transaction in the time frame expected, or at all; the effects of the transaction on relationships with employees, other business partners or governmental entities; potential adverse reactions or changes to business relationships resulting from the announcement or completion of the proposed transaction; significant or unexpected costs, charges or expenses resulting from the proposed transaction; negative effects of this announcement or the consummation of the proposed acquisition on Checkpoint’s common stock and/or Checkpoint’s operating results; the difficulty of predicting the timing or outcome of regulatory approvals or actions; the risks related to non-achievement of the CVR milestone and that holders of the CVRs will not receive payments in respect of the CVRs; other business effects, including the effects of industry, economic or political conditions outside of the companies’ control; transaction costs; actual or contingent liabilities; risk of litigation and/or regulatory actions related to the proposed acquisition; adverse impacts on business, operating results or financial condition in the future due to pandemics, epidemics or outbreaks, and their impact on Checkpoint’s business, operations, supply chain, patient enrollment and retention, clinical trials, strategy, goals and anticipated milestones; government-mandated or market-driven price decreases for Checkpoint’s products; the existence or introduction of competing products; reliance on information technology; Checkpoint’s ability to successfully market current and new products; Checkpoint’s and its collaborators’ ability to continue to conduct research and clinical programs; and exposure to product liability and legal proceedings and investigations. Further risks and uncertainties that could cause actual results to differ materially from the results anticipated by the forward-looking statements are detailed from time to time in Checkpoint’s periodic reports filed with the SEC, including the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2024 and the definitive proxy statement to be filed by Checkpoint with the SEC in connection with the proposed transaction. These filings, when available, are available on the investor relations section of Checkpoint’s website at https://ir.checkpointtx.com or on the SEC’s website at https://www.sec.gov. Any forward-looking statements set forth in this press release speak only as of the date of this press release, are made based on current beliefs and judgments, and are not predictions of actual performance. New risks and uncertainties arise from time to time, and it is impossible for us to predict these events or how they may affect us. We caution that a number of important factors, including those described in this document, could cause actual results to differ materially from those contemplated in any forward-looking statements. Unlisted factors may present significant additional obstacles to the realization of forward-looking statements. We expressly disclaim any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in our expectations or any changes in events, conditions or circumstances on which any such statement is based, except as required by law. This press release and prior releases are available at www.checkpointtx.com. The information found on our website is not incorporated by reference into this press release and is included for reference purposes only. Company Contact:Jaclyn JaffeCheckpoint Therapeutics, Inc.(781) 652-4500ir@checkpointtx.com Investor Relations Contact:Sandya von der WeidAssociate Director, LifeSci Advisors, LLC+41 78 680 05 38svonderweid@lifesciadvisors.com Media Relations Contact:Katie KennedyGregory FCA610-731-1045checkpoint@gregoryfca.com CHECKPOINT THERAPEUTICS, INC.CONDENSED BALANCE SHEETS(in thousands, except share and per share amounts)(Unaudited) December 31, 2024 2023 ASSETS Current Assets: Cash and cash equivalents $6,604 $4,928 Prepaid expenses and other assets 867 450 Total current assets 7,471 5,378 Total Assets $7,471 $5,378 LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT) Current Liabilities: Accounts payable and accrued expenses $17,465 $15,485 Accounts payable and accrued expenses - related party 2,433 2,815 Common stock warrant liabilities 198 125 Total current liabilities 20,096 18,425 Total Liabilities 20,096 18,425 Commitments and Contingencies Stockholders' Equity (Deficit) Common Stock ($0.0001 par value), 175,000,000 and 80,000,000 shares authorized as of December 31, 2024 and 2023, respectively Class A common shares, 700,000 shares issued and outstanding as of December 31, 2024 and December 31, 2023 - - Common shares, 53,640,422 and 27,042,035 shares issued and outstanding as of December 31, 2024 and December 31, 2023, respectively 5 3 Common stock issuable, 2,386,808 and 1,492,915 shares as of December 31, 2024 and December 31, 2023, respectively 7,638 3,419 Additional paid-in capital 350,305 297,864 Accumulated deficit (370,573) (314,333)Total Stockholders’ Equity (Deficit) (12,625) (13,047)Total Liabilities and Stockholders’ Equity (Deficit) $7,471 $5,378 CHECKPOINT THERAPEUTICS, INC.CONDENSED STATEMENTS OF OPERATIONS(in thousands, except share and per share amounts)(Unaudited) For the year ended December 31, 2024 2023 Revenue - related party $41 $103 Operating expenses: Research and development 36,152 43,566 General and administrative 20,063 8,685 Total operating expenses 56,215 52,251 Loss from operations (56,174) (52,148) Other income (loss): Interest income 11 84 Gain (loss) on common stock warrant liabilities (73) 217 Foreign currency exchange loss (4) - Total other income (loss) (66) 301 Net Loss $(56,240) $(51,847) Loss per Share: Basic and diluted net loss per Class A common share and common share outstanding $(1.42) $(3.17) Basic and diluted weighted average number of Class A common shares and common shares outstanding 39,674,444 18,742,494