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Primary endpoint of pivotal Phase 3 trial (IOB-013/KN-D18) of lead investigational therapeutic cancer vaccine in patients with advanced melanoma still expected to readout in third quarter of 2025 Data presented at recent congresses reinforces the potential of the company’s T-Win candidates to reshape the tumor microenvironment and drive more effective anti-tumor responses Company recognized as one of the most innovative biotechnology companies in the world by Fast Company Company to participate in TD Cowen’s 6th Annual Oncology Innovation Summit on May 27 and Jefferies Global Healthcare Conference on June 4, 2025 NEW YORK, May 14, 2025 (GLOBE NEWSWIRE) -- IO Biotech (Nasdaq: IOBT), a clinical-stage biopharmaceutical company developing novel, immune-modulatory, off-the-shelf therapeutic cancer vaccines, today reported financial results and business highlights for the first quarter of 2025. The company continues to advance its pipeline, presenting new data further defining the mechanism of action for its T-Win therapeutic cancer vaccines, and reaffirming its expectation that the Phase 3 pivotal trial will readout in the third quarter of 2025. “IO Biotech continues to make meaningful progress developing novel cancer therapies that are designed to address significant unmet needs in melanoma and other hard-to-treat cancers, and we are thrilled to be recognized for our work by Fast Company as one of the most innovative companies in the world,” said Mai-Britt Zocca, PhD, President and CEO of IO Biotech. “This year, we remain focused on delivering our Phase 3 data, preparing a Biologics License Application (BLA) and planning for commercialization of Cylembio® (imsapepimut and etimupepimut, adjuvanted), our potentially first-in-class, immune-modulatory, off-the-shelf therapeutic cancer vaccine.” Dr. Zocca continued, “Additionally, we continue to explore potential collaborations to expand the global impact of our product candidates and our platform across multiple cancer types.” Recent Business Highlights The company’s pivotal Phase 3 trial (IOB-013/KN-D18) is progressing as planned with the readout of the primary endpoint of progression free survival (PFS) still expected in the third quarter of 2025. The trial is evaluating the company’s lead investigational vaccine, Cylembio® (imsapepimut and etimupepimut, adjuvanted), in combination with Merck’s (known as MSD outside of the United States and Canada) anti-PD-1 therapy KEYTRUDA® (pembrolizumab) for the treatment of advanced melanoma. The company continues to plan to submit a BLA to the U.S. Food & Drug Administration (FDA) in 2025 for Cylembio and, subject to FDA approval, launch a potentially first-in-class therapeutic cancer vaccine for patients with advanced melanoma in the US in 2026. The company completed enrollment in its perioperative Phase 2 solid tumor basket trial (IOB-032/PN-E40), studying treatment with Cylembio in combination with pembrolizumab in patients with resectable squamous cell carcinoma of the head and neck (SCCHN) and melanoma in January. The company expects initial data from the perioperative trial as well as longer-term data from the company’s other ongoing Phase 2 basket trial, IOB-022/KN-D38, in patients with advanced SCCHN or non-small cell lung cancer (NSCLC) in the second half of 2025. On May 6, 2025, the company announced that it drew tranche A (€10.0 million) from the loan facility it entered into with the European Investment Bank (EIB) in December 2024. The company also believes that it has satisfied the conditions for the second tranche (€12.5 million) of the EIB loan facility. IO Biotech was named to Fast Company’s World’s Most Innovative Companies of 2025 list for its potentially game-changing approach to immune-modulatory cancer vaccines, earning its place on the coveted list as the 9th most innovative company in the world in the biotechnology category. Upcoming Investor Conferences TD Cowen’s 6th Annual Oncology Innovation Summit: Insights for ASCO & EHA: Mai-Britt Zocca, PhD, President and CEO, Amy Sullivan, CFO, and Qasim Ahmad, MD, CMO, will participate in a fireside chat beginning at 10:30 AM ET on May 27, 2025. Jefferies Global Healthcare Conference: Mai-Britt Zocca, PhD, President and CEO, will give a presentation beginning at 7:35 AM ET on June 4, 2025. The webcasts for these two upcoming conferences will be available from the Investors section of the company’s website at https://investors.iobiotech.com. First Quarter 2025 Financial Results Net loss for the three months ended March 31, 2025, was $22.4 million, compared to $19.5 million for the three months ended March 31, 2024. Research and development expenses were $16.4 million for the three months ended March 31, 2025, compared to $14.3 million for the three months ended March 31, 2024. The company recognized $0.6 million in research and development equity-based compensation for the three months ended March 31, 2025 and 2024, respectively. General and administrative expenses were $6.2 million for the three months ended March 31, 2025, compared to $5.9 million for the three months ended March 31, 2024. The company recognized $1.0 million in general and administrative equity-based compensation for the three months ended March 31, 2025 and 2024, respectively. Cash and cash equivalents as of March 31, 2025 were $37.1 million, compared to $60.0 million at December 31, 2024. During the three months ended March 31, 2025, the company used cash, cash equivalents and restricted cash of $22.9 million. On May 6, 2025, the company drew tranche A of the EIB loan facility of €10.0 million before payment of certain fees and transaction related expenses. The company continues to expect that it will have sufficient cash to run the company into the second quarter of 2026, assuming draw down of the first three committed tranches of the EIB loan facility. About Cylembio® Cylembio® (imsapepimut and etimupepimut, adjuvanted) is an investigational, immune-modulatory, off-the-shelf therapeutic cancer vaccine candidate designed to kill both tumor cells and immune-suppressive cells in the tumor microenvironment (TME) by stimulating activation and expansion of T cells against indoleamine 2,3-dioxygenase 1 (IDO1) positive and/or programmed death-ligand 1 (PD-L1) positive cells. The company is currently conducting a pivotal Phase 3 trial (IOB-013/KN-D18; NCT05155254) investigating Cylembio in combination with Merck’s anti-PD-1 therapy, KEYTRUDA® (pembrolizumab) versus pembrolizumab alone in patients with advanced melanoma, a Phase 2 basket trial (IOB-022/KN-D38; NCT05077709) investigating Cylembio in combination with pembrolizumab as first line treatment in patients with advanced solid tumors, and a Phase 2 basket trial (IOB-032/PN-E40; NCT05280314) investigating Cylembio in combination with pembrolizumab as neo-adjuvant/adjuvant treatment of patients with solid tumors. Enrollment in the three ongoing company-sponsored clinical trials is now complete. The clinical trials are sponsored by IO Biotech and conducted in collaboration with Merck, which is supplying pembrolizumab. IO Biotech maintains global commercial rights to Cylembio. Cylembio® is a registered trademark of IO Biotech ApS, a subsidiary of IO Biotech. KEYTRUDA® is a registered trademark of Merck Sharp & Dohme LLC, a subsidiary of Merck & Co., Inc., Rahway, NJ, USA. About the IOB-013/KN-D18 Pivotal Phase 3 Clinical Trial IOB-013/KN-D18 (ClinicalTrials.gov: NCT05155254) is an open label, randomized Phase 3 pivotal clinical trial evaluating Cylembio® in combination with Merck’s anti-PD-1 therapy, KEYTRUDA® (pembrolizumab) versus pembrolizumab alone in patients with previously untreated, unresectable or metastatic (advanced) melanoma. A total of 407 patients have been enrolled from more than 100 centers across the United States, Europe, Australia, Turkey, Israel and South Africa. The primary endpoint of the study is progression free survival. Top-line data readout is expected in the third quarter of 2025. Secondary endpoints include overall response rate, overall survival, durable objective response rate, complete response rate, duration of response, time to complete response, disease control rate, and incidence of adverse events and serious adverse events (safety and tolerability). Biomarkers in the blood and tumor tissue will also be assessed as exploratory endpoints. IO Biotech is sponsoring the Phase 3 trial and Merck is supplying pembrolizumab. About IOB-022/KN-D38 Phase 2 Solid Tumor Basket Trial IOB-022/KN-D38 (NCT05077709) is a non-comparative, open label trial to investigate the safety and efficacy of Cylembio® in combination with Merck’s anti-PD-1 therapy, KEYTRUDA® (pembrolizumab) in the first-line treatment of metastatic non-small cell lung cancer (NSCLC) or metastatic squamous cell carcinoma of the head and neck (SCCHN) at sites in the United States, Spain, and the United Kingdom. IO Biotech is sponsoring the Phase 2 trial and Merck is supplying pembrolizumab. About IOB-032/PN-E40 Phase 2 Solid Tumor Basket Trial IOB-032/PN-E40 (NCT05280314) is a multicenter Phase 2 basket trial investigating Cylembio® in combination with Merck’s anti-PD-1 therapy, KEYTRUDA® (pembrolizumab) as neo-adjuvant/adjuvant treatment of patients with solid tumors at sites in Australia, the United States, France, Germany, Spain, and Denmark. The study completed enrollment in all cohorts: 18 patients with melanoma in cohort A and 16 patients with SCCHN in cohort B, both as single arm cohorts receiving combination of Cylembio with pembrolizumab. In cohort C, 61 melanoma patients were randomized 1:1 to either the combination of Cylembio with pembrolizumab or pembrolizumab alone. In the neo-adjuvant period, for all cohorts, treatment is every 3 weeks (Q3W) for 3 cycles (melanoma) or 2-3 cycles (SCCHN). Patients entering the study will be scheduled for surgery and begin neoadjuvant treatment 4-9 weeks prior. Surgery will be followed by adjuvant treatment with the same regimen for 15 cycles. Cohort C patients with poor pathological response to pembrolizumab alone in the neo-adjuvant phase (>10% residual viable tumor) may cross over to combination treatment post-surgery. The primary endpoint is major pathological response at surgery (≤10% residual viable tumor; central assessment). IO Biotech is sponsoring the Phase 2 trial and Merck is supplying pembrolizumab. About IO Biotech IO Biotech is a clinical-stage biopharmaceutical company developing novel, immune-modulatory, off-the-shelf therapeutic cancer vaccines based on its T-win® platform. The T-win platform is based on a novel approach to cancer vaccines designed to activate T cells to target both tumor cells and the immune-suppressive cells in the tumor microenvironment. IO Biotech is advancing its lead cancer vaccine candidate, Cylembio®, in clinical trials, and additional pipeline candidates through preclinical development. Based on positive Phase 1/2 first line metastatic melanoma data, IO102-IO103, in combination with Merck’s anti-PD-1 therapy, KEYTRUDA® (pembrolizumab), has been granted a Breakthrough Therapy Designation for the treatment of advanced melanoma by the US Food and Drug Administration. IO Biotech is headquartered in Copenhagen, Denmark and has US headquarters in New York, New York. For further information, please visit www.iobiotech.com. Follow us on our social media channels on LinkedIn and X (@IOBiotech). Forward-Looking Statement This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements, including regarding the expected timing of the top-line data from, or outcome of, the company’s Phase 3 trial, the timing regarding submission of a BLA, the timing regarding launch of Cylembio, the timing or outcome of other current or future clinical trials, their progress, enrollment or results, or the company’s financial position or cash runway, are based on IO Biotech’s current assumptions and expectations of future events and trends, which affect or may affect its business, strategy, operations or financial performance, and actual results and other events may differ materially from those expressed or implied in such statements due to numerous risks and uncertainties. Forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified. Because forward-looking statements are inherently subject to risks and uncertainties, you should not rely on these forward-looking statements as predictions of future events. These forward-looking statements speak only as of the date hereof and should not be unduly relied upon. Except to the extent required by law, IO Biotech undertakes no obligation to update these statements, whether as a result of any new information, future developments or otherwise. Contact: InvestorsMaryann Cimino, Director of Investor Relations IO Biotech, Inc.617-710-7305mci@iobiotech.com MediaJulie FunestiEdelman917-498-1967julie.funesti@edelman.com

NESS ZIONA, Israel, May 01, 2025 (GLOBE NEWSWIRE) -- Sol-Gel Technologies Ltd. (the “Company”) (NASDAQ: SLGL), a clinical-stage dermatology company, today announced a reverse share split (the “Reverse Split”) of the Company’s issued and outstanding ordinary shares, par value NIS 0.1 per share (the “Ordinary Shares”), at the ratio of 10-for-1, such that each ten (10) Ordinary Shares shall be consolidated into one (1) Ordinary Share. The Company obtained shareholders’ approval for the Reverse Split at a ratio of between 2:1 and 10:1 at a special meeting of shareholders, which took place on April 1, 2025. The Company’s board of directors then approved the Reverse Split ratio of 10-for-1 on April 9, 2025. The Reverse Split will become effective at 11:59 p.m. Eastern Time on Friday, May 2, 2025. The first date when the Company’s Ordinary Shares will begin trading on the Nasdaq Capital Market (“Nasdaq”) on a post- reverse split basis is expected to be Monday, May 5, 2025. The Company’s Ordinary Shares will continue to trade on Nasdaq under the symbol “SLGL” with a new CUSIP number M8694L137. The primary objective of the Reverse Split is to increase the per share market price of the Ordinary Shares to regain compliance with the minimum bid price requirement for continued listing on Nasdaq and maintain the listing of its Ordinary Shares on Nasdaq. When the Reverse Split is effective, every ten (10) issued and outstanding Ordinary Shares will be combined automatically into one (1)Ordinary Share. The Reverse Split will apply equally to all outstanding Ordinary Shares and each shareholder will hold the same percentage of Ordinary Shares outstanding immediately following the Reverse Split, except for adjustments that may result from the treatment of fractional shares. All fractional shares shall be rounded to the nearest whole Ordinary Share. In addition, a proportionate adjustment will be made to the per share exercise price and the number of shares issuable upon the exercise of all outstanding options or warrants entitling the holders to purchase Ordinary Shares. In conjunction with the Reverse Split, pursuant to the amended articles of association, the par value of the Company’s Ordinary Shares will be adjusted from 0.1 NIS per share to 1.0 NIS per share, and the share capital will be adjusted from 50,000,000 to 5,000,000 Ordinary Shares. Equiniti Trust Company, LLC is acting as the exchange agent and transfer agent for the Reverse Split. Shareholders holding their shares electronically in book-entry form are not required to take any action to receive post-split shares. Additional information regarding the Reverse Split can be found in the Company’s proxy statement furnished to the Securities and Exchange Commission on February 18, 2025. About Sol-Gel Technologies Sol-Gel Technologies, Ltd. is a dermatology company focused on identifying, developing and commercializing or partnering drug products for the treatment of skin diseases. Sol-Gel developed TWYNEO which is approved by the FDA for the treatment of acne vulgaris in adults and pediatric patients nine years of age and older; and EPSOLAY, which is approved by the FDA for the treatment of inflammatory lesions of rosacea in adults. The Company’s pipeline includes Orphan Drug candidate, SGT-610 under investigation for the prevention of new basal cell carcinomas in Gorlin syndrome patients, and also includes topical drug candidate SGT-210 under investigation for the treatment of rare skin keratodermas. For additional information, please visit www.sol-gel.com. Forward-Looking Statements This press release contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. All statements contained in this press release that do not relate to matters of historical fact should be considered forward-looking statements, including, but not limited to the timing of the reverse share split and the Company’s expectation that the reverse share split will help the Company regain compliance with Nasdaq’s $1.00 minimum bid price requirement. In some cases, you can identify forward-looking statements by terminology such as “believe,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “expect,” “predict,” “potential,” or the negative of these terms or other similar expressions. Forward-looking statements are based on information we have when those statements are made or our management’s current expectations and are subject to risks and uncertainties that could cause actual performance or results to differ materially from those expressed in or suggested by the forward-looking statements. Important factors that could cause such differences include, but are not limited to, delays in regulatory milestones, such as a delay in top-line results for our SGT-610 clinical trial, our ability to enter into further collaborations, lower than anticipated annual revenue income from new collaborations and a delay in the timing of our clinical trials, the success of our clinical trials, and an increase in our anticipated costs and expenses, as well as the following factors: (i) the adequacy of our financial and other resources, particularly in light of our history of recurring losses and the uncertainty regarding the adequacy of our liquidity to pursue our complete business objectives; (ii) our ability to complete the development of our product candidates; (iii) our ability to find suitable co-development partners; (iv) our ability to obtain and maintain regulatory approvals for our product candidates in our target markets, the potential delay in receiving such regulatory approvals and the possibility of adverse regulatory or legal actions relating to our product candidates even if regulatory approval is obtained; (v) our collaborators’ ability to commercialize our pharmaceutical product candidates; (vi) our ability to obtain and maintain adequate protection of our intellectual property; (vii) our collaborators’ ability to manufacture our product candidates in commercial quantities, at an adequate quality or at an acceptable cost; (viii) our collaborators’ ability to establish adequate sales, marketing and distribution channels; (ix) acceptance of our product candidates by healthcare professionals and patients; (x) the possibility that we may face third-party claims of intellectual property infringement; (xi) the timing and results of clinical trials that we may conduct or that our competitors and others may conduct relating to our or their products; (xii) intense competition in our industry, with competitors having substantially greater financial, technological, research and development, regulatory and clinical, manufacturing, marketing and sales, distribution and personnel resources than we do; (xiii) potential product liability claims; (xiv) potential adverse federal, state and local government regulation in the United States, China, Europe or Israel; and (xv) loss or retirement of key executives and research scientists; (xvi) general market, political and economic conditions in the countries in which the Company operates; and, (xvii) the current war between Israel and Hamas and any deterioration of the war in Israel into a broader regional conflict involving Israel with other parties. These factors and other important factors discussed in the Company's Annual Report on Form 20-F filed with the Securities and Exchange Commission (“SEC”) on April [29], 2025, and our other reports filed with the SEC, could cause actual results to differ materially from those indicated by the forward-looking statements made in this press release. Except as required by law, we undertake no obligation to update any forward-looking statements in this press release. Sol-Gel Contact: Eyal Ben-OrChief Financial Officerinfo@sol-gel.com+972-8-9313429