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Moleculin Biotech, Inc.

For the period ended Dec 31, 2024. Filed Mar 21, 2025.

View on SEC.gov

About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2024 · Filed Mar 21, 2025

MBRX$8.70-0.3%Stored close · as of Nov 6, 2026

What changed in Management’s Discussion and Analysis?

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Previous report: 10-K

Period ended 2023-12-31; filed 2024-03-22.

0001437749-24-009044

Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations

Current report: 10-K

Period ended 2024-12-31; filed 2025-03-21.

0001437749-25-008751

Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations

The baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.

Compared 87 previous paragraphs and 87 current paragraphs.

49 unchanged; 27 reworded; 11 added; 11 removed; 0 previous and 0 current paragraphs rearranged.

Tables are not compared: 6 previous and 17 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.

A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.

Added paragraphs (11)

Current report

We are a late-stage pharmaceutical development company currently conducting a pivotal Phase 3 trial evaluating Annamycin, a non-cardiotoxic anthracycline, in combination with Cytarabine for the treatment of subjects with relapsed/refractory acute myeloid leukemia (AML). This Phase 3 trial should have an interim unblinding of data by the end of 2025, less than a year from its commencement, and an additional unblinding in the first half of 2026. We believe such early visibility for a pivotal registration-enabling trial is highly unique in that stakeholders will receive preliminary safety and efficacy data in the “MIRACLE” trial (derived from Moleculin R/R AML AnnAraC Clinical Evaluation) within one year of dosing the first subject. Additionally, we have two portfolios of technologies for hard-to-treat cancers and viruses with clinical and preclinical research funded by investigators at academic institutions.

Current report

We believe that our lead drug candidate Annamycin has summarily:

Current report

In all of our discussions, clinical data, where a CSR or its equivalent has not been published, are considered preliminary and subject to change.

Current report

We have multiple active INDs/CTAs (Investigational New Drug authorization in the US or Clinical Trial Authorization in Europe). These INDs/CTAs are under development, approved, in progress, or completed and total fourteen clinical trials, internally and externally funded. With Annamycin, we currently have active two AML clinical trials MB-106 which is a Phase 1B/2 treating AML with AnnAraC (recruitment is closed and is in subject follow-up) and MB-108 which is a Phase 2B/3 pivotal clinical trial treating R/R AML as 2 nd line therapy and is just starting. Additionally, there are one externally funded Phase 1B/2 trial treating STS Lung Mets with Annamycin as monotherapy. This trial is closed and is in follow-up on the trial’s subjects. With WP1066, we have an externally funded phase 1B/2 in combination with radiation treating GBM at Northwestern University that is actively recruiting.

Current report

In February 2025, the Company entered into a securities purchase agreement with an institutional investor for the sale by the Company of 1,150,000 shares of common stock, and 2,121,029 pre-funded warrants to purchase shares of common stock, and common warrants to purchase up to 6,543,058 shares of common stock. The combined purchase price for the securities was $1.07 per share of common stock (or pre-funded warrant in lieu thereof) and accompanying common warrant. Each pre-funded warrant is exercisable for one share of common stock at an exercise price of $0.001 per share. The pre-funded warrants are exercisable immediately and may be exercised at any time until all of the pre-funded warrants are exercised in full, subject to the beneficial ownership limitation. Each common warrant will be exercisable upon the receipt of shareholder approval, will have an exercise price of $1.07 per share, and expire five years from the initial exercise date. The Company received gross proceeds of $3.5 million.

Current report

In February 2025, the Company entered into a warrant exercise inducement offer letter with a holder of certain existing warrants to receive new warrants to purchase up to a number of shares of common stock equal to 200% of the number of warrant shares issued pursuant to the exercise of such existing warrants to purchase up to 5,828,570 shares of common stock pursuant to which the warrant holder agreed to exercise for cash their existing warrants at a reduced exercise price of $1.00 in exchange for the Company's agreement to issue the inducement warrants to purchase up to 11,657,140 shares of the Company's common stock. Each inducement warrant has an exercise price of $0.75, and was immediately exercisable as of the date of issuance and may be exercised for a period of five years therefrom. The Company received gross proceeds of $5.8 million. This brings the total gross proceeds received in February 2025 to $9.3 million.

Current report

In August 2024, the Company entered into a securities purchase agreement with an institutional investor for the sale by the Company of 283,000 shares of common stock, and 2,183,368 pre-funded warrants to purchase shares of common stock, series A warrants to purchase up to 2,466,368 shares of common stock, series B warrants to purchase up to 2,466,368 shares of common stock, and placement agent warrants. The combined purchase price for the securities was $2.23 per share of common stock (or pre-funded warrant in lieu thereof) and accompanying warrants. Each pre-funded warrant is exercisable for one share of common stock at an exercise price of $0.001 per share. The pre-funded warrants are exercisable immediately and may be exercised at any time until all of the pre-funded warrants are exercised in full, subject to the beneficial ownership limitation. In addition, in August 2024, the Company entered into a warrant amendment agreement, pursuant to which the Company agreed that effective upon closing of the offering, and subject to shareholder approval, to amend 895,834 existing warrants originally issued on December 26, 2023 at an exercise price of $9.60 per share and a termination date of February 14, 2029, so that the amended warrants would have a reduced exercise price of $2.23 per share and would expire five years from the date of shareholder approval, which was obtained in October 2024. The Company calculated the valuation of the warrant amendment immediately prior to the offering, as well as the valuation of the warrant amendment with the repriced terms, and a 91% probability of obtaining shareholder approval. The loss on modification of the warrants of $0.4 million was recorded as a loss on issuance of warrant liabilities for the year ended December 31, 2024. The Company also considered a 91% probability of obtaining shareholder approval in the valuation for the August 2024 warrants for the year ended December 31, 2024. In October 2024, the Company’s shareholders approved the issuance of both the August 2024 warrants, as well as the warrant amendment. The Company received gross proceeds of $5.5 million, before deducting the placement agent's fees and other offering expenses payable by the Company. Proceeds of offerings are allocated between common shares and warrants first by allocating to the warrants classified as a liability based on their fair value and then allocating the residual to the equity instruments, which would include pre-funded warrants. As the fair value of the liability classified warrants in the August 2024 offering exceeded the total proceeds, no consideration was allocated to the Common Shares or Pre-Funded Warrants. The full proceeds of the August 2024 offering were recorded to warrant liabilities, with an initial liability of $6.1 million, and a loss on initial recognition of $0.8 million. Transaction costs related to the offering were correspondingly fully allocated to warrant liabilities, and $1.0 million in related tra…

Excerpt shortened here; the source contains the full paragraph.

Removed paragraphs (11)

Previous report

As part of our Annamycin clinical trials, we have engaged an independent expert in assessing cardiotoxicity associated with chemotherapy at the Cleveland Clinic (Expert or Independent Expert). The data made available to the Expert includes left ventricular ejection fraction (LVEF) as determined by echocardiograms, and ECHO strain imaging, as well as Troponin levels (a biochemical marker of acute heart damage). “ECHO strain imaging” is a method in echocardiography (medical ultrasound) for measuring regional or global deformation (contraction or beating) of the myocardium (heart muscle). By strain rate imaging, the simultaneous function of different regions can be displayed and measured. Cardiac health biomarkers such as blood Troponin levels are considered an indicator of potential long-term heart damage. The Expert has issued and will continue to issue periodic reports as additional data are provided to him in batches of subject data. Such data include some data which are preliminary and subject to change. In our discussions regarding the lack of Annamycin’s cardiotoxicity, we rely on the Expert’s assessment .

Previous report

Annamycin benefits from a promising advancement in lipid enabled drug delivery developed in collaboration with and exclusively licensed from MD Anderson. The unique patent-pending lipid composition allows us to combine a new concept in chemotherapeutic agents within a lipid structure that helps target the delivery of the payload and reduce the potential for toxicity. In the case of Annamycin, our unique use of lipid technology enables improved tissue/organ distribution and as demonstrated in multiple clinical trials, dramatically reduced toxicity, including cardiotoxicity.

Previous report

Annamycin in combination with Cytarabine (also known as Ara-C, the combination with Annamycin of which is referred to as AnnAraC) for the treatment of AML.

Previous report

Annamycin for the treatment of STS metastasized to the lungs .

Previous report

A better formulation for delivery of a molecule from the WP1066 portfolio to possibly further support future externally funded oncology clinical trials. Such a formulation will require additional preclinical work prior to a clinical trial.

Previous report

In December 2023, the Company entered into a Securities Purchase Agreement with an institutional investor and certain of the Company's executive officers, employees, advisors and a member of its board of directors for the sale by the Company of 240,151 shares (taking into account the reverse stock splits we have completed) of the Company's common stock, and pre-funded warrants to purchase 229,506 shares of common stock (taking into account the reverse stock splits we have completed) in lieu thereof in a registered direct offering. In a concurrent private placement, the Company also sold to the investors unregistered warrants to purchase up to an aggregate of 939,312 shares of common stock (taking into account the reverse stock splits we have completed). Subject to certain ownership limitations, each Common Warrant has an exercise price of $9.60 per share (taking into account the reverse stock splits we have completed), and expires five years from the date of stockholder approval of the Common Warrants (which occurred February 14,2024). Subject to certain ownership limitations, each Pre-Funded Warrant is exercisable into one share of common stock at a price per share of $0.001 (as adjusted from time to time in accordance with the terms thereof). The combined purchase price of one share of common stock (or pre-funded warrant in lieu thereof) and accompanying Common Warrant was $9.60 (taking into account the reverse stock splits we have completed) for the institutional investor, and $10.35 (taking into account the reverse stock splits we have completed) for the executive officers, employees, advisors and the member of the Company's board of directors who participated in the offering. The Company received gross proceeds of $4.5 million, before deducting the placement agent's fees and other offering expenses payable by the Company.

Previous report

In June 2021, we entered into a Purchase Agreement with Lincoln Park Capital Fund (Lincoln Park Agreement). Pursuant to the terms of the Purchase Agreement, Lincoln Park agreed to purchase from us up to $20.0 million of common stock (subject to certain limitations) from time to time during the term of the Purchase Agreement. Pursuant to the terms of the Purchase Agreement, at the time we signed the Purchase Agreement, we issued 7,186 shares of common stock (taking into account the reverse stock splits we have completed) to Lincoln Park as an initial fee for its commitment to purchase shares of our common stock under the Purchase Agreement, and have agreed to issue Lincoln Park up to an additional 3,593 shares of common stock (taking into account the reverse stock splits we have completed) as commitment shares pro-rata when and if Lincoln Park purchases (at our discretion) the $20.0 million aggregate commitment. During the year ended December 31, 2023, utilizing the Lincoln Park Equity Line, we issued 15,038 shares of common stock (taking into account the reverse stock splits we have completed) (including commitment shares), at an average price of $14.10 per share (taking into account the reverse stock splits we have completed), resulting in gross proceeds of $0.2 million. In the December 2023 Offering, we agreed not to utilize the Lincoln Park Agreement or any such extension thereof, until after June 26, 2024.
Reworded paragraphs (27)

Previous wording

We are a clinical stage pharmaceutical company with a growing pipeline, including Phase 2 clinical programs for hard-to-treat cancers and viruses. We have three core technologies, each of which have had one or more drugs successfully complete a Phase 1 clinical trial, based substantially on discoveries made at and licensed from the University of Texas MD Anderson Cancer Center (MD Anderson) in Houston, Texas. Three of our six drug candidates have shown human activity in clinical trials and are currently or have been in Phase 1B/2 or Phase 2 clinical trials. Since our inception, our drugs have completed, are currently in, or have been permitted to proceed in thirteen clinical trials. Annamycin is our lead molecule and is in three Phase 1B/2 clinical trials - one for treating Acute Myeloid Leukemia (AML) and two for treating Soft Tissue Sarcoma metastasized to the lungs (STS lung metastases, STS lung mets, or Advanced STS).

Current wording

Each of our three core technologies is based substantially on discoveries made at and licensed from the University of Texas MD Anderson Cancer Center (MD Anderson) in Houston, Texas, and features one or more drugs that have successfully completed a Phase 1 clinical trial. Three of our six drug candidates have shown human activity in clinical trials and are currently or have been in Phase 1B/2 or Phase 2 clinical trials. One is currently beginning a Phase 2B/3 trial. Since our inception, our drugs have completed, are currently in, or have been permitted to proceed in, fourteen clinical trials. Annamycin is in a class of drugs referred to as Anthracyclines, which are an inhibitor of topoisomerase II, enabling them to cause DNA damage in rapidly replicating tumor cells. Annamycin, in a unique multilamellar lipid formulation, is our lead molecule and we have recently concluded one Phase 1B/2 clinical trial for treating Acute Myeloid Leukemia (AML) and are embarking on a Phase 3 clinical trial for the treatment of AML, which we believe will be pivotal. Annamycin is also in two Phase 1B/2 clinical trials for treating Soft Tissue Sarcoma metastasized to the lungs (STS lung metastases, STS lung mets, or Advanced STS).

Previous wording

One of our core management beliefs is that anthracyclines represent the most important treatment for AML and Advanced STS, and we believe Annamycin may, for the first time ever, allow a majority of these patients to benefit from this treatment. This belief leads us to currently focus mainly on the development of Annamycin.

Current wording

One of our core management beliefs is that anthracyclines represent one of the most important treatments for AML and Advanced STS, and we believe Annamycin may, for the first time ever, allow a majority of these patients to benefit from this treatment. We believe that such a benefit would be disruptive to the competitive landscape for these markets. This belief, coupled with our limited resources, leads us to currently focus mainly on the development of Annamycin. We intend to advance our other drug candidates via investigator led studies – both clinically and preclinically.

Current wording

We are focused on internally funded (“internally” and “externally” funded trials are defined in the Funding Strategy section below) development of our core technologies:

Previous wording

We have established an RP2D for WP1122 to potentially enable future externally funded oncology and virology trials. Beyond this, we support development of our core technologies through several externally funded clinical trials and primarily externally funded non-clinical research, with the potential for further studies in the future.

Current wording

We have established a Recommended Phase 2 Dose for WP1122 to potentially enable future externally funded oncology and virology trials. Beyond this, we support development of our core technologies through several externally funded clinical trials and primarily externally funded non-clinical research, with the potential for further studies in the future.

Previous wording

a) Annamycin or L-Annamycin is a “next generation” anthracycline (one of the most common classes of chemotherapy), designed to be different than currently approved anthracyclines, which are limited in utility because of cardiotoxicity risks and their susceptibility to multidrug resistance mechanisms. Annamycin was designed to avoid multidrug resistance and to be non-cardiotoxic and has shown no cardiotoxicity in subjects treated in clinical trials to date. Furthermore, we have demonstrated safe dosing beyond the dose limitations imposed by regulatory authorities upon currently prescribed anthracyclines due to their inherent cardiotoxicity. Annamycin is demonstrating efficacy in two of its Phase 1B/2 trials as described further below in subjects with AML and Advanced STS. We believe that Annamycin has potential to fill an unmet need as a second line therapy (2nd line or 2L) in AML and potentially as first line therapy in Advanced STS.

Current wording

a) Annamycin or L-Annamycin is a “next generation” anthracycline (one of the most widely used classes of chemotherapy), designed to be different than currently approved anthracyclines, which are limited in utility because of cardiotoxicity risks and their susceptibility to multidrug resistance mechanisms. Annamycin was designed to avoid multidrug resistance and to be non-cardiotoxic and, with intensive cardiac monitoring, has shown no cardiotoxicity in subjects treated in our five Annamycin clinical trials to date. Furthermore, we have demonstrated safe dosing significantly beyond the dose limitations imposed by regulatory authorities upon commonly prescribed anthracyclines due to their inherent cardiotoxicity.

Previous wording

b) Our WP1066 Portfolio includes, WP1066, WP1193 and WP1220, three of several Immune/Transcription Modulators in the portfolio designed to inhibit p-STAT3 (phosphorylated signal transducer and activator of transcription) among other transcription factors associated with tumor activity. These also stimulate a natural immune response to tumors by inhibiting the errant activity of Regulatory T-Cells (TRegs). WP1066, in oral formulation, has been in two clinical trials, including compassionate use cases. WP1066 and WP1193 are being tested in preclinical programs in intravenous (IV) formulations. WP1066 and WP1220 have been in clinical trials in a topical formulation. WP1066 and WP1220 have both independently successfully completed Phase 1 clinical trials and have demonstrated efficacy as described further below.

Current wording

b) Our WP1066 Portfolio includes WP1066, WP1193 and WP1220, three of several Immune/Transcription Modulators in the portfolio designed to inhibit p-STAT3 (phosphorylated signal transducer and activator of transcription) among other transcription factors associated with tumor activity. These also stimulate a natural immune response to tumors by inhibiting the errant activity of Regulatory T-Cells (TRegs).

Previous wording

c) Our WP1122 Portfolio contains compounds (including WP1122, WP1096, and WP1097) designed to exploit the potential uses of inhibitors of glycolysis such as 2-deoxy-D-glucose (2-DG). We believe such compounds may provide an opportunity to cut off the fuel supply of tumors by taking advantage of their high degree of dependence on glucose in comparison to healthy cells, as well as viruses that also depend upon glycolysis and glycosylation to infect and replicate. WP1122 has completed a Phase 1 clinical study, successfully establishing a Recommended Phase 2 Dose or RP2D.

Current wording

c) Our WP1122 Portfolio contains compounds (including WP1122, WP1096, and WP1097) designed to exploit the potential uses of inhibitors of glycolysis such as 2-deoxy-D-glucose (2-DG). We believe such compounds may provide an opportunity to cut off the energy supply of tumors by taking advantage of their high degree of dependence on glucose in comparison to healthy cells, as well as viruses that also depend upon glycolysis and glycosylation to infect and replicate.

Previous wording

Research and development (R&D) expense was$19.5 million and $19.0 million for the years ended December 31, 2023 and 2022, respectively. Theincrease in R&D of $0.5 million is mainly related to the $1.5 million WPD sublicense termination, which enabled the reacquisition of our intellectual property rights in certain territories, including parts of the European Union. This was offset by $1.0 million in costs related to the timing of costs incurred for clinical trials and sponsored research.

Current wording

Research and development (R&D) expense was$17.7 million and $19.5 million for the years ended December 31, 2024 and 2023, respectively. The decrease in R&D of $1.8 million is mainly related to the $1.5 million WPD sublicense termination in 2023, which enabled the reacquisition of our intellectual property rights in certain territories, including parts of the European Union.

Previous wording

General and administrative (G&A) expense was$10.0 million and $11.5 million for the years ended December 31, 2023 and 2022, respectively. The decrease in G&A of $1.5 million was mainly attributable to a decrease in regulatory and legal services, and consulting & advisory fees.

Current wording

General and administrative (G&A) expense was$8.8 million and $10.0 million for the years ended December 31, 2024 and 2023, respectively. The decrease in G&A of $1.2 million was mainly attributable to a decrease in regulatory and legal services, and consulting & advisory fees.

Previous wording

(Loss) Gain from Change in Fair Value of Warrant Liability

Current wording

Gain (Loss) from Change in Fair Value of Warrant Liability

Previous wording

We recorded a loss of $1.0 million during the year ended December 31, 2023 as compared to a gain of $1.3 million, during the year ended December 31, 2022, for the change in fair value on revaluation of our warrant liability associated with our warrants issued in conjunction with our stock offerings. We are required to revalue certain of the warrants at the time of each warrant exercise and at the end of each reporting period and reflect in the statement of operations a gain or loss from the change in fair value of the warrant in the period in which the change occurred. We calculated the fair value of the warrants outstanding using the Black-Scholes model. Generally, a gain results principally from a decline in our share price during the period and a loss results principally from an increase in our share price.

Current wording

We recorded a gain of$6.1 million during the year ended December 31, 2024 as compared to a loss of $1.0 million, during the year ended December 31, 2023, for the change in fair value on revaluation of our warrant liability associated with our warrants issued in conjunction with our stock offerings. We are required to revalue certain of the warrants at the time of each warrant exercise and at the end of each reporting period and reflect in the statement of operations a gain or loss from the change in fair value of the warrant in the period in which the change occurred. We calculated the fair value of the warrants outstanding using the Black-Scholes model. Generally, a gain results principally from a decline in our share price during the period and a loss results principally from an increase in our share price.

Previous wording

The net loss for the year ended December 31, 2023 was$29.8 million, which included a non-cash loss of$1.0 million on warrants in 2023 as compared to a gain of $1.3 million in the prior year and approximately $2.0 million of stock-based compensation expense in 2023 as compared to $2.3 million in 2022.

Current wording

The net loss for the year ended December 31, 2024 was$21.8 million, which included a non-cash gain of$6.1 million on warrants in 2024 as compared to aloss of $1.0 million in the prior year and approximately $1.7 million of stock-based compensation expense in 2024 as compared to $2.0 million in 2023.

Previous wording

Interest income, net increased by approximately $1.1 million for the comparable period due to rising interest rates during the past year.

Current wording

Interest income, net decreased by approximately $0.8 million for the comparable period due to a decreasing cash balance, coupled with decreasing interest rates during the past year.

Previous wording

As of December 31, 2023, we had cash and cash equivalents of$23.6 million and prepaid expenses and other current assets of$2.7 million. We also had$2.5 million of accounts payable and$4.3 million of accrued expenses and other current liabilities. A significant portion of the accounts payable and accrued expenses are due to work performed in relation to our preclinical activities and our clinical trials. For the years ended December 31, 2023 and 2022, we used approxima tely$24.1 million and$27.6 million of cash in operating activities, respectively, which represents cash outlays for research and development and general and administrative expenses in such periods. The decreased cash outflows in 2023 was primarily due toan overall decrease in expenses, timing of payments, as well as license rights settled in stock. For the year ended December 31, 2023, there were $4.7 million in net proceeds from financing activities. In 2022, there were no net proceeds from financing activities. Cash used in investing activities for the years ended December 31, 2023 and 2022 was approximately$0.1 million.

Current wording

As of December 31, 2024, we had cash and cash equivalents of$4.3 million and prepaid expenses and other current assets of$0.9 million. We also had$2.0 million of accounts payable and$3.3 million of accrued expenses and other current liabilities. A significant portion of the accounts payable and accrued expenses are due to work performed in relation to our preclinical activities and our clinical trials. For the years ended December 31, 2024 and 2023, we used approxima tely$23.9 million and$23.6 million of cash in operating activities, respectively, which represents cash outlays for research and development and general and administrative expenses in such periods. The slightly increased cash outflows in 2024 was primarily due to timing of payments for sponsored research and other expenses. For the year ended December 31, 2024, there were $4.6 million in net proceeds from financing activities. In 2023, there were $4.1 million in net proceeds from financing activities. Cash used in investing activities for the years ended December 31, 2024 and 2023 was approximately$0.0 million, and $0.1 million, respectively.

Previous wording

We believe that our cash resources as of December 31, 2023, will be sufficient to fund our planned operations, which include our current Phase 1B/2 clinical programs and preparations for future clinical trials, into the fourth quarter of 2024, without the issuance of additional equity for cash. This takes into account cash outlays for preparations for clinical trials beyond the current active trials. The continuation of our Company as a going concern is dependent upon our ability to obtain necessary financing to continue operations and the attainment of profitable operations. We may seek additional funding through a combination of equity offerings, debt financings, government or other third-party funding, commercialization, marketing and distribution arrangements, other collaborations, strategic alliances and licensing arrangements and delay planned cash outlays or a combination thereof. We cannot provide assurance that such events or a combination thereof can be achieved.

Current wording

We believe that our cash resources as of December 31, 2024, along with $9.3 million in gross proceeds received via our financing activities in the first quarter of 2025 (see Recent Stock Offerings below) will be sufficient to fund our planned operations into the third quarter of 2025, without the issuance of additional equity for cash. This takes into account cash outlays for preparations for clinical trials beyond the current active trials. The continuation of our Company as a going concern is depe ndent upon our ability to obtain necessary financing to continue operations and the attainment of profitable operations. We may seek additional funding through a combination of equity offerings, debt financings, government or other third-party funding, commercialization, marketing and distribution arrangements, other collaborations, strategic alliances and licensing arrangements and delay planned cash outlays or a combination thereof. We cannot provide assurance that such events or a combination thereof can be achieved.

Previous wording

In March 2022, we received a subpoena from the SEC requesting information and documents, including materials related to certain individuals (none of which are our officers or directors) and entities, and materials related to the development of and statements regarding our drug candidate for the treatment of COVID-19. We have received, and expect to continue to receive, periodic further requests from the SEC staff with respect to this matter. We are not aware of the specific nature of the underlying investigation by the SEC, and to the extent that this investigation relates to prior public disclosures that we have made, we believe in the accuracy and adequacy of such prior disclosures. The correspondence from the SEC transmitting the subpoena to us states that the SEC is trying to determine whether there have been any violations of federal securities laws, but that its investigation does not mean that the SEC has concluded that anyone has violated the law or that the SEC has a negative opinion of any person, entity, or security. We cannot predict when this matter will be resolved or what, if any, action the SEC may take following the conclusion of the investigation. During the year ended December 31, 2023 and 2022, we have expensed approximately$1.5 and$2.4 million, respectively, in related legal fees and expenses, which has impacted and may continue to impact our liquidity.

Current wording

In March 2022, we received a subpoena from the SEC requesting information and documents, including materials related to certain individuals (none of which are our officers or directors) and entities, and materials related to the development of and statements regarding our drug candidate for the treatment of COVID-19. We have received, and expect to continue to receive, periodic further requests from the SEC staff with respect to this matter. We are not aware of the specific nature of the underlying investigation by the SEC, and to the extent that this investigation relates to prior public disclosures that we have made, we believe in the accuracy and adequacy of such prior disclosures. The correspondence from the SEC transmitting the subpoena to us states that the SEC is trying to determine whether there have been any violations of federal securities laws, but that its investigation does not mean that the SEC has concluded that anyone has violated the law or that the SEC has a negative opinion of any person, entity, or security. We cannot predict when this matter will be resolved or what, if any, action the SEC may take following the conclusion of the investigation. During the years ended December 31, 2024 and 2023, we have expensed approximately $0.2 million and$1.5 million, respectively, in related legal fees and expenses, which has impacted and may continue to impact our liquidity.

Previous wording

As of December 31, 2023, there was $0.3 million of cash on hand in a bank account in Australia and we know of no related limitations impacting our liquidity in Australia.

Current wording

As of December 31, 2024, there was $0.6 million of cash on hand in a bank account in Australia and we know of no related limitations impacting our liquidity in Australia.

Previous wording

Net cash used in operating activities was$24.1 million for the year ended December 31, 2023 compared to $27.6 million for the year ended December 31, 2022. This decrease in use of cash for operations was mainly due to an overall decrease in expenses, timing of payments, as well as license rights settled in stock.

Current wording

Net cash used in operating activities was $23.9 million for the year ended December 31, 2024 compared to $23.6 million for the year ended December 31, 2023. This slight increase in use of cash for operations was mainly due to timing of payments related to sponsored research and other expenses.

Previous wording

Net cash provided by financing activities was $4.7 millionfor the year ended December 31, 2023, consisting of the December 2023 stock offering, as well as shares issued utilizing the Lincoln Park Equity Line.

Current wording

Net cash provided by financing activities was $4.6 millionfor the year ended December 31, 2024, consisting of the proceeds from the August 2024 stock offering. Net cash provided by financing activities was $4.1 million for the year ended December 31, 2023, consisting of the December 2023 stock offering, as well as shares issued utilizing the Lincoln Park Equity Line.

Previous wording

We have implemented all new accounting pronouncements that are in effect and may impact our financial statements and we do not believe that there are any other new accounting pronouncements that have been issued that might have a material impact on our financial position or results of operations.** **

Current wording

We have implemented all new accounting pronouncements that are in effect and may impact our financial statements and we do not believe that there are any other new accounting pronouncements that have been issued that might have a material impact on our financial position or results of operations.** **Refer to Note 2 for additional discussion.

Previous wording

We evaluate the recoverability of our property and equipment and amortizable intangible assets for possible impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable or at a minimum annually during the fourth quarter of the year. Recoverability of these assets is measured by a comparison of the carrying amounts to the future undiscounted cash flows the assets are expected to generate. If such review indicates that the carrying amount of property and equipment and amortizable intangible assets is not recoverable, the carrying amount of such asset is reduced to fair value.

Current wording

We evaluate the recoverability of our property and equipment and amortizable intangible assets for possible impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable or at a minimum annually during the third quarter of the year. Recoverability of these assets is measured by a comparison of the carrying amounts to the future undiscounted cash flows the assets are expected to generate. If such review indicates that the carrying amount of property and equipment and amortizable intangible assets is not recoverable, the carrying amount of such asset is reduced to fair value.

Previous wording

Depreciation and Amortization. Depreciation and amortization expense consists of depreciation on our property and equipment. We depreciate our assets over their estimated useful life. We estimate leasehold improvements to have a estimated useful life over the term of the lease or the estimated useful life, whichever is shorter; computer equipment to have a 2-year life; software to have a 3-year life, machinery and equipment to have a 2 to 5 year life and furniture and office equipment to have a 2 to 7 year life.

Current wording

Depreciation and amortization expense consists of depreciation on our property and equipment. We depreciate our assets over their estimated useful life. We estimate leasehold improvements to have an estimated useful life over the term of the lease or the estimated useful life, whichever is shorter; computer equipment to have a 2-year life; software to have a 3-year life, machinery and equipment to have a 2 to 5 year life and furniture and office equipment to have a 2 to 7 year life.

Previous wording

Upon its issuance of warrants to purchase shares of common stock, the Company evaluates the terms of the warrant issue to determine the appropriate accounting and classification of the warrant issue pursuant to FASB ASC Topic 480, Distinguishing Liabilities from Equity, FASB ASC Topic 505, Equity, FASB ASC 815, Derivatives and Hedging, and ASC 718, Compensation - Stock Compensation. Warrants are classified as liabilities when the Company may be required to settle a warrant exercise in cash and classified as equity when the Company settles a warrant exercise in shares of its common stock. We issued warrants to purchase shares of common stock related to equity transactions in 2017, 2018, 2019, 2020, 2021, 2022, and 2023. We account for our warrants issued in accordance with Accounting Standards Codification (ASC) Topic 815, Derivatives and Hedging, guidance applicable to derivative instruments, which requires every derivative instrument within its scope to be recorded on the balance sheet as either an asset or liability measured at its fair value, with changes in fair value recognized in earnings for liability classified warrants. Based on this guidance, we determined that certain of our warrants to purchase shares of common stock related to equity transactions in 2017, 2018, 2019, 2020, and 2023 meetthe criteria for classification as a liability. Accordingly, the warrants were classified as a warrant liability and are subject to fair value remeasurement at each transaction and balance sheet date. The fair value was estimated using the Black-Scholes option pricing model, based on the market value of the underlying common stock at the measurement date, the contractual term of the warrant, risk-free interest rates, expected dividends and expected volatility of the price of the underlying common stock. Proceeds of the December 2023 Offering were allocated between common shares and warrants first by allocating proceeds to the warrants classified as a liability based on their fair value and then allocating the residual to the equity instruments, which includes the Pre-Funded Warrants.

Current wording

Upon its issuance of warrants to purchase shares of common stock, the Company evaluates the terms of the warrant issue to determine the appropriate accounting and classification of the warrant issue pursuant to FASB ASC Topic 480, Distinguishing Liabilities from Equity, FASB ASC Topic 505, Equity, FASB ASC 815, Derivatives and Hedging, and ASC 718, Compensation - Stock Compensation. Warrants are classified as liabilities when the Company may be required to settle a warrant exercise in cash and classified as equity when the Company settles a warrant exercise in shares of its common stock. We issued warrants to purchase shares of common stock related to equity transactions in 2020, 2021, 2022, 2023, and 2024. We account for our warrants issued in accordance with Accounting Standards Codification (ASC) Topic 815, Derivatives and Hedging, which requires every derivative instrument within its scope to be recorded on the balance sheet as either an asset or liability measured at its fair value, with changes in fair value recognized in earnings for liability classified warrants. Based on this guidance, we determined that certain of our warrants to purchase shares of common stock related to equity transactions in 2020, and 2023 meetthe criteria for classification as a liability. Accordingly, the warrants were classified as a warrant liability and are subject to fair value remeasurement at each transaction and balance sheet date. The fair value was estimated using the Black-Scholes option pricing model, based on the market value of the underlying common stock at the measurement date, the contractual term of the warrant, risk-free interest rates, expected dividends and expected volatility of the price of the underlying common stock. Proceeds of the December 2023 and August 2024 Offerings were allocated between common shares and warrants first by allocating proceeds to the warrants classified as a liability based on their fair value and then allocating the residual to the equity instruments, which includes the Pre-Funded Warrants.

Previous wording

Our financial instruments consist primarily of non-trade receivables, account payables, accrued expenses, and a warrant liability. The carrying amount of non-trade receivables, accounts payables, and accrued expenses approximates their fair value because of the short-term maturity of such.

Current wording

Our financial instruments consist primarily of non-trade receivables, accounts payable, accrued expenses, and a warrant liability. The carrying amount of non-trade receivables, accounts payable, and accrued expenses approximates their fair value because of the short-term maturity of such.

Previous wording

We have categorized our assets and liabilities that are valued at fair value on a recurring basis into three-level fair value hierarchy in accordance with GAAP. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets and liabilities (Level 1) and lowest priority to unobservable inputs (Level 3).

Current wording

We have categorized our assets and liabilities that are valued at fair value on a recurring basis into a three-level fair value hierarchy in accordance with GAAP. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets and liabilities (Level 1) and lowest priority to unobservable inputs (Level 3).

Previous wording

We account for income taxes using ASC 740, Income Taxes. ASC 740 Income Taxes is an asset and liability approach that requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in our financial statements or tax returns. In estimating future tax consequences, ASC 740 generally considers all expected future events other than enactments of and changes in the tax law or rates. The measurement of deferred tax assets is reduced, if necessary, by the amount of any tax benefits that, based on available evidence, are not expected to be realized. Valuation allowances are provided if, considering available evidence, it is more likely than not that the deferred tax assets will not be realized. ASC 740 clarifies the criteria that must be met prior to recognition of the financial statement benefit of a position taken in a tax return. ASC 740 provides a benefit recognition model with a two-step approach consisting of “more-likely-than-not” recognition criteria, and a measurement attribute that measures a given tax position as the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement. ASC 740 also requires the recognition of liabilities created by differences between tax positions taken in a tax return and amounts recognized in the financial statements.

Current wording

We account for income taxes using ASC 740, Income Taxes. ASC 740 is an asset and liability approach that requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in our financial statements or tax returns. In estimating future tax consequences, ASC 740 generally considers all expected future events other than enactments of and changes in the tax law or rates. The measurement of deferred tax assets is reduced, if necessary, by the amount of any tax benefits that, based on available evidence, are not expected to be realized. Valuation allowances are provided if, considering available evidence, it is more likely than not that the deferred tax assets will not be realized. ASC 740 clarifies the criteria that must be met prior to recognition of the financial statement benefit of a position taken in a tax return. ASC 740 provides a benefit recognition model with a two-step approach consisting of “more-likely-than-not” recognition criteria, and a measurement attribute that measures a given tax position as the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement. ASC 740 also requires the recognition of liabilities created by differences between tax positions taken in a tax return and amounts recognized in the financial statements.