Organization and Basis of Presentation	9 Months Ended
Sep. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	1. Organization and Basis of Presentation The condensed consolidated financial statements of Lixte Biotechnology Holdings, Inc., a Delaware corporation), including its wholly-owned Delaware subsidiary, Lixte Biotechnology, Inc. (collectively, the “Company”), at September 30, 2025, and for the three months and nine months ended September 30, 2025 and 2024, are unaudited. In the opinion of management of the Company, all adjustments, including normal recurring accruals, have been made that are necessary to present fairly the financial position of the Company as of September 30, 2025, and the results of its operations for the three months and nine months ended September 30, 2025 and 2024, and its cash flows for the nine months ended September 30, 2025 and 2024. Operating results for the interim periods presented are not necessarily indicative of the results to be expected for a full fiscal year. The condensed consolidated balance sheet at December 31, 2024 has been derived from the Company’s audited consolidated financial statements at such date. The condensed consolidated financial statements and related notes have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been omitted pursuant to such rules and regulations. These condensed consolidated financial statements should be read in conjunction with the financial statements and other information included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2024, as filed with the SEC. *Business* The Company is a clinical-stage biopharmaceutical company focused on identifying new targets for cancer drug development and developing and commercializing cancer therapies. The Company’s corporate office is located in Boca Raton, Florida. The Company’s product pipeline is primarily focused on inhibitors of Protein Phosphatase 2A, which is used to enhance cytotoxic agents, radiation, immune checkpoint blockers and other cancer therapies. The Company believes that inhibitors of protein phosphatases have significant therapeutic potential for a broad range of cancers. The Company is focusing on the clinical development of a specific protein phosphatase inhibitor, referred to as LB-100. The Company’s activities are subject to significant risks and uncertainties, including the need for additional capital. The Company has not yet commenced any revenue-generating operations, does not have positive cash flows from operations, relies on stock-based compensation for a substantial portion of employee and consultant compensation, and is dependent on periodic infusions of equity capital to fund its operating requirements. *Nasdaq Compliance* The Company’s common stock and public warrants are traded on the Nasdaq Capital Market under the symbols “LIXT” and “LIXTW”, respectively. On June 2, 2023, the Company effected a 1-for-10 reverse split of its outstanding shares of common stock in order to remain in compliance with the $1.00 minimum closing bid price requirement of the Nasdaq Stock Market LLC (“Nasdaq”). On August 19, 2024, the Company received a letter from the Nasdaq Listing Qualifications Staff notifying the Company of its noncompliance with the minimum $2.5 million stockholders’ equity requirement for continued listing on the Nasdaq Capital Market under Rule 5550(b)(1). On October 3, 2024, the Company submitted a compliance plan, outlining proposed equity financings. On October 21, 2024, Nasdaq granted the Company an extension through February 18, 2025 to complete its plan and evidence compliance via Form 8-K. The Company did not meet the terms of the extension and, on February 19, 2025, received a Staff determination letter. The Company timely requested a hearing before the Nasdaq Hearings Panel, staying any suspension or delisting pending the Panel’s decision. Following an April 3, 2025 hearing, the Panel granted the Company a further extension through July 3, 2025 to regain compliance. On July 2, 2025, the Company closed a $5.05 million private placement and, on July 8, 2025, completed a $1.5 million registered direct offering (see Note 5). On July 15, 2025, Nasdaq notified the Company that it had regained compliance with the stockholders’ equity requirement. The Company remains subject to a Panel Monitor under Nasdaq Listing Rule 5815(d)(4)(B) through July 15, 2026. During this period, any future deficiency in stockholders’ equity would require the Company to request a hearing before the Panel rather than submit a new compliance plan. *Going Concern* For the nine months ended September 30, 2025, the Company recorded a net loss of $3,465,626 and used cash in operations of $1,982,720. As of September 30, 2025, the Company had cash of $2,887,874 available to fund its operations. As of September 30, 2025, the Company had net working capital and total stockholders’ equity of $4,912,254, respectively. Because the Company is currently engaged in various early-stage clinical trials, it is expected that it will take a significant amount of time and resources to develop any product or intellectual property capable of generating sustainable revenues. Accordingly, the Company’s business is unlikely to generate any sustainable operating revenues in the next several years and may never do so. Even if the Company is able to generate revenues through licensing its technology, product sales or other commercial activities, there can be no assurance that the Company will be able to achieve and maintain positive earnings and operating cash flows. At September 30, 2025, the Company’s remaining financial contractual commitments pursuant to clinical trial agreements and clinical trial monitoring agreements not yet incurred aggregated approximately $510,000, which are currently scheduled to be incurred through approximately December 31, 2027. The Company’s consolidated financial statements have been presented on the basis that it will continue as a going concern, which contemplates the realization of assets and satisfaction of liabilities in the normal course of business. The Company has no recurring source of revenues and has experienced negative operating cash flows since inception. The Company has financed its working capital requirements through the recurring sale of its equity securities. These factors raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date the consolidated financial statements are issued. In addition the Company’s independent registered public accounting firm, in their report on the Company’s audited consolidated financial statements as of and for the year ended December 31, 2024, expressed substantial doubt about the Company’s ability to continue as a going concern. The consolidated financial statements also do not reflect any adjustments relating to the recoverability of assets and liabilities that might be necessary if the Company is unable to continue as a going concern. The Company’s ability to continue as a going concern is dependent upon its ability to raise additional equity capital to fund its research and development activities, including its ongoing clinical trials. The amount and timing of future cash requirements depends in substantial part on the pace, design and results of the Company’s clinical trial program, which, in turn, depends on the availability of operating capital to fund such activities. Based on current operating plans, the Company estimates that its existing cash resources at September 30, 2025 will provide sufficient working capital to fund the Company’s operations as currently configured, including its ongoing clinical trial program with respect to the development of the Company’s lead anti-cancer clinical compound LB-100, for at least the next 12 months. However, existing cash resources will not be sufficient to complete the development of and to obtain regulatory approval for the Company’s product candidate, which would require significant additional operating capital. In addition, as a result of the appointment of a new Chairman and Chief Executive Officer in June 2025, the completion of the July 2025 equity financings, and other recent changes in senior management and the Board of Directors, the Company’s operating strategies that may include the addition of personnel and/or the incurrence of additional operating costs, which may require that the Company raise additional capital to fund operations. However, as market conditions present uncertainty as to the Company’s ability to secure additional funds, there can be no assurances that the Company will be able to secure additional financing on acceptable terms, as and when necessary, to continue to fund its operations. The Company is focusing on a disciplined approach to strategic expansion and is focused on advancing LB-100 in high-need cancer indications, while pursuing acquisitions of complementary oncology assets that could enhance the Company’s pipeline, accelerate development and create durable value for patients and shareholders. The Company has announced that it is in advanced negotiations regarding potential transactions consistent with its strategy, although there can be no assurance that any transaction will be completed. If cash resources are insufficient to satisfy the Company’s ongoing cash requirements, the Company would be required to scale back or discontinue its clinical trial program, as well as its licensing and patent prosecution efforts and its technology and product development efforts, or obtain funds, if available, through strategic alliances, joint ventures or other transaction structures that could require the Company to relinquish rights to and/or control of LB-100, or to curtail or discontinue operations entirely.

Organization and Basis of Presentation

9 Months Ended

Sep. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

1. Organization and Basis of Presentation

The condensed consolidated financial statements of Lixte Biotechnology Holdings, Inc., a Delaware corporation), including its wholly-owned Delaware subsidiary, Lixte Biotechnology, Inc. (collectively, the “Company”), at September 30, 2025, and for the three months and nine months ended September 30, 2025 and 2024, are unaudited. In the opinion of management of the Company, all adjustments, including normal recurring accruals, have been made that are necessary to present fairly the financial position of the Company as of September 30, 2025, and the results of its operations for the three months and nine months ended September 30, 2025 and 2024, and its cash flows for the nine months ended September 30, 2025 and 2024. Operating results for the interim periods presented are not necessarily indicative of the results to be expected for a full fiscal year. The condensed consolidated balance sheet at December 31, 2024 has been derived from the Company’s audited consolidated financial statements at such date.

The condensed consolidated financial statements and related notes have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been omitted pursuant to such rules and regulations. These condensed consolidated financial statements should be read in conjunction with the financial statements and other information included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2024, as filed with the SEC.

Business

The Company is a clinical-stage biopharmaceutical company focused on identifying new targets for cancer drug development and developing and commercializing cancer therapies. The Company’s corporate office is located in Boca Raton, Florida.

The Company’s product pipeline is primarily focused on inhibitors of Protein Phosphatase 2A, which is used to enhance cytotoxic agents, radiation, immune checkpoint blockers and other cancer therapies. The Company believes that inhibitors of protein phosphatases have significant therapeutic potential for a broad range of cancers. The Company is focusing on the clinical development of a specific protein phosphatase inhibitor, referred to as LB-100.

The Company’s activities are subject to significant risks and uncertainties, including the need for additional capital. The Company has not yet commenced any revenue-generating operations, does not have positive cash flows from operations, relies on stock-based compensation for a substantial portion of employee and consultant compensation, and is dependent on periodic infusions of equity capital to fund its operating requirements.

Nasdaq Compliance

The Company’s common stock and public warrants are traded on the Nasdaq Capital Market under the symbols “LIXT” and “LIXTW”, respectively.

On June 2, 2023, the Company effected a 1-for-10 reverse split of its outstanding shares of common stock in order to remain in compliance with the $1.00 minimum closing bid price requirement of the Nasdaq Stock Market LLC (“Nasdaq”).

On August 19, 2024, the Company received a letter from the Nasdaq Listing Qualifications Staff notifying the Company of its noncompliance with the minimum $2.5 million stockholders’ equity requirement for continued listing on the Nasdaq Capital Market under Rule 5550(b)(1).

On October 3, 2024, the Company submitted a compliance plan, outlining proposed equity financings. On October 21, 2024, Nasdaq granted the Company an extension through February 18, 2025 to complete its plan and evidence compliance via Form 8-K.

The Company did not meet the terms of the extension and, on February 19, 2025, received a Staff determination letter. The Company timely requested a hearing before the Nasdaq Hearings Panel, staying any suspension or delisting pending the Panel’s decision.

Following an April 3, 2025 hearing, the Panel granted the Company a further extension through July 3, 2025 to regain compliance.

On July 2, 2025, the Company closed a $5.05 million private placement and, on July 8, 2025, completed a $1.5 million registered direct offering (see Note 5). On July 15, 2025, Nasdaq notified the Company that it had regained compliance with the stockholders’ equity requirement.

The Company remains subject to a Panel Monitor under Nasdaq Listing Rule 5815(d)(4)(B) through July 15, 2026. During this period, any future deficiency in stockholders’ equity would require the Company to request a hearing before the Panel rather than submit a new compliance plan.

Going Concern

For the nine months ended September 30, 2025, the Company recorded a net loss of $3,465,626 and used cash in operations of $1,982,720. As of September 30, 2025, the Company had cash of $2,887,874 available to fund its operations. As of September 30, 2025, the Company had net working capital and total stockholders’ equity of $4,912,254, respectively.

Because the Company is currently engaged in various early-stage clinical trials, it is expected that it will take a significant amount of time and resources to develop any product or intellectual property capable of generating sustainable revenues. Accordingly, the Company’s business is unlikely to generate any sustainable operating revenues in the next several years and may never do so. Even if the Company is able to generate revenues through licensing its technology, product sales or other commercial activities, there can be no assurance that the Company will be able to achieve and maintain positive earnings and operating cash flows. At September 30, 2025, the Company’s remaining financial contractual commitments pursuant to clinical trial agreements and clinical trial monitoring agreements not yet incurred aggregated approximately $510,000, which are currently scheduled to be incurred through approximately December 31, 2027.

The Company’s consolidated financial statements have been presented on the basis that it will continue as a going concern, which contemplates the realization of assets and satisfaction of liabilities in the normal course of business. The Company has no recurring source of revenues and has experienced negative operating cash flows since inception. The Company has financed its working capital requirements through the recurring sale of its equity securities. These factors raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date the consolidated financial statements are issued. In addition the Company’s independent registered public accounting firm, in their report on the Company’s audited consolidated financial statements as of and for the year ended December 31, 2024, expressed substantial doubt about the Company’s ability to continue as a going concern. The consolidated financial statements also do not reflect any adjustments relating to the recoverability of assets and liabilities that might be necessary if the Company is unable to continue as a going concern.

The Company’s ability to continue as a going concern is dependent upon its ability to raise additional equity capital to fund its research and development activities, including its ongoing clinical trials. The amount and timing of future cash requirements depends in substantial part on the pace, design and results of the Company’s clinical trial program, which, in turn, depends on the availability of operating capital to fund such activities.

Based on current operating plans, the Company estimates that its existing cash resources at September 30, 2025 will provide sufficient working capital to fund the Company’s operations as currently configured, including its ongoing clinical trial program with respect to the development of the Company’s lead anti-cancer clinical compound LB-100, for at least the next 12 months. However, existing cash resources will not be sufficient to complete the development of and to obtain regulatory approval for the Company’s product candidate, which would require significant additional operating capital.

In addition, as a result of the appointment of a new Chairman and Chief Executive Officer in June 2025, the completion of the July 2025 equity financings, and other recent changes in senior management and the Board of Directors, the Company’s operating strategies that may include the addition of personnel and/or the incurrence of additional operating costs, which may require that the Company raise additional capital to fund operations. However, as market conditions present uncertainty as to the Company’s ability to secure additional funds, there can be no assurances that the Company will be able to secure additional financing on acceptable terms, as and when necessary, to continue to fund its operations.

The Company is focusing on a disciplined approach to strategic expansion and is focused on advancing LB-100 in high-need cancer indications, while pursuing acquisitions of complementary oncology assets that could enhance the Company’s pipeline, accelerate development and create durable value for patients and shareholders. The Company has announced that it is in advanced negotiations regarding potential transactions consistent with its strategy, although there can be no assurance that any transaction will be completed.

If cash resources are insufficient to satisfy the Company’s ongoing cash requirements, the Company would be required to scale back or discontinue its clinical trial program, as well as its licensing and patent prosecution efforts and its technology and product development efforts, or obtain funds, if available, through strategic alliances, joint ventures or other transaction structures that could require the Company to relinquish rights to and/or control of LB-100, or to curtail or discontinue operations entirely.