Company Description
Lixte Biotechnology Holdings, Inc. (NASDAQ: LIXT) is a clinical-stage pharmaceutical company in the cancer therapeutics field. According to the company’s public disclosures, Lixte focuses on new targets for cancer drug development and on developing and commercializing cancer therapies. Its work centers on a proprietary drug class known as Protein Phosphatase 2A (PP2A) inhibitors, with the goal of improving outcomes for patients with solid tumors that have significant unmet medical needs.
Core business and lead compound LB-100
Lixte’s primary clinical asset is LB-100, described by the company as a first-in-class lead clinical PP2A inhibitor. Public company materials state that LB-100 has been shown to be well-tolerated in cancer patients at doses associated with anti-cancer activity. Based on extensive published preclinical data referenced by Lixte, the company believes LB-100 has the potential to significantly enhance chemotherapies and immunotherapies and to improve outcomes for patients with cancer.
LB-100 is characterized in company profiles and sponsored content as a proprietary small-molecule inhibitor of the PP2A phosphatase with a favorable toxicity profile. The company states that LB-100 promotes the production of neoantigens and cytokines, boosts T-cell proliferation, and disrupts the DNA repair mechanisms of cancer cells. In Lixte’s description, this mechanism is intended to make standard treatments more effective by increasing stress on tumor cells and exposing them to immune attack.
Therapeutic approach and clinical focus
Lixte positions LB-100 as part of what it calls an entirely new field of cancer biology – activation lethality, which the company describes as advancing a new treatment paradigm. Rather than replacing existing therapies, LB-100 is presented as a potential treatment amplifier that can be given in combination with chemotherapy, radiation, or immunotherapy.
According to multiple company descriptions and news releases, Lixte is conducting proof-of-concept clinical trials of LB-100 in Ovarian Clear Cell Carcinoma and Metastatic Colon Cancer, with additional mention of work in Advanced Soft Tissue Sarcoma. The company highlights that these are solid tumors with unmet medical needs and that its trials are designed to explore whether LB-100 can enhance the effectiveness of existing cancer treatments in these settings.
Collaborations and trial programs
Public news releases describe collaborations with major oncology centers and pharmaceutical companies. Lixte reports that LB-100 is being studied in combination with dostarlimab, a GSK immunotherapy, in ovarian clear cell cancer through a collaboration with The University of Texas MD Anderson Cancer Center and GSK. The company has also reported collaborations involving LB-100 with atezolizumab supplied by Roche in metastatic microsatellite-stable colon cancer, as referenced in sponsored content summarizing its programs.
In a news release, Lixte stated that a trial combining LB-100 with dostarlimab in ovarian clear cell cancer is underway, with trial sites at MD Anderson and at the Robert H. Lurie Comprehensive Cancer Center of Northwestern University. The company has disclosed plans to expand enrollment in this study, reflecting its focus on generating additional clinical data in this indication.
Oncology platform and radiotherapy technology
Beyond its drug development activities, Lixte has begun to build what it describes as a multi-modal oncology platform. According to an 8-K filing and related press releases, Lixte entered into a Share Exchange Agreement to acquire Liora Technologies Europe Ltd., a company that holds assets relating to the LIGHT (Linac Guided Hadron Therapy) proton-based radiotherapy solution. The acquisition was consummated on November 24, 2025, and Liora became a wholly owned subsidiary of Lixte.
Company news describes Liora’s flagship LiGHT System (Linac for Guided Hadron Therapy) as an electronically controlled proton therapy system for treating tumors in various cancers. Lixte states that this system provides advantages over currently available technologies for proton therapy and that the equipment and operations are located at the Daresbury Laboratory in the United Kingdom. Lixte has publicly characterized this transaction as its entry into the radiotherapy segment of cancer care and as a complement to its pharmaceutical business and ongoing LB-100 clinical trials.
Intellectual property and competitive positioning
Across its press releases and company profiles, Lixte emphasizes that its approach is covered by a comprehensive patent portfolio. The company describes LB-100 as part of a pioneering effort in PP2A inhibition and activation lethality and notes that its unique approach has no known competitors in the PP2A inhibitor class as presented in its materials. These statements are part of Lixte’s own characterization of its intellectual property and scientific positioning.
Corporate structure, exchange listing, and governance
Lixte Biotechnology Holdings, Inc. is incorporated in Delaware and its common stock trades on Nasdaq under the symbol LIXT. The company has also referenced warrants trading under a related symbol in its news releases. A definitive proxy statement (DEF 14A) describes Lixte as a Delaware corporation and provides details on its annual meeting of stockholders, board composition, and proposals related to its stock incentive plan and auditor ratification.
The company has used registered direct offerings and private placements to raise capital, as described in its press releases and SEC filings. For example, Lixte announced a registered direct offering of common stock and warrants, and its 8-K filing related to the Liora acquisition details the issuance of Series C Convertible Preferred Stock and other consideration, including digital assets and cash, as part of the transaction structure.
Royalty structure related to radiotherapy assets
In connection with the Liora acquisition, Lixte entered into a Royalty Agreement with Orbit Capital Inc., as disclosed in its 8-K filing. Under this agreement, Lixte agreed to pay a 10% royalty on Net Revenue derived from the operation, use, licensing, monetization, or sale of the proton therapy equipment acquired through the share exchange, up to a specified maximum royalty payment cap. The filing outlines how Net Revenue is defined, how royalties are calculated and reported, and the conditions under which the agreement terminates.
Company mission and strategic direction
In its public statements, Lixte describes its mission as treating cancer with new targets and novel technologies, including PP2A inhibition and advanced radiotherapy systems. The company highlights a strategy of building a multi-asset oncology platform that combines systemic therapies like LB-100 with technology-based treatment modalities such as proton therapy. Sponsored content and press releases emphasize that Lixte aims to advance LB-100 in high-need cancer indications and to expand its asset base through acquisitions of complementary oncology technologies.
Risk profile and development stage
Lixte identifies itself consistently as a clinical-stage company, meaning its therapies are in clinical testing and have not been approved for commercial sale. As with other companies at this stage, its programs are subject to risks related to clinical trial outcomes, regulatory review, financing, and operational execution. The company’s own communications, including sponsored articles, note that there are risks associated with novel mechanisms such as PP2A inhibition and that some trials have experienced safety pauses, while earlier studies have provided tolerability data.
Summary
Overall, Lixte Biotechnology Holdings, Inc. presents itself as a Nasdaq-listed, clinical-stage pharmaceutical company focused on PP2A inhibitor-based cancer therapies and on building a broader oncology platform that now includes proton therapy technology. Its lead compound LB-100, ongoing proof-of-concept trials in solid tumors, collaborations with major cancer centers and pharmaceutical partners, and the acquisition of Liora Technologies Europe Ltd. are central elements of its publicly described business model and strategic direction.