目錄

美國

證券交易委員會

華盛頓特區20549

表單 10-Q

☒ 根據1934年《證券交易法》第13條或第15（d）條提交的季度報告

截至季度結束日期的財務報告2024年9月30日

或者

☐ 根據1934年證券交易法第13或15(d)節的轉型報告書

過渡期從                 到                  

委員會文件號： 001-36304

phio pharmaceuticals公司。

（註冊人的確切姓名如其所示 章程）

11 Apex Drive, Suite 300A，PMb 2006, 馬爾伯勒, MA 01752

(主要行政辦公室地址) (郵政編碼)

登記者的電話號碼，包括區號：（508) 767-3861

根據法案第12（b）項註冊的證券：

請以勾選方式說明註冊者是否(1)在前12個月內已經提交了1934年證券交易所規定的第13條或第15(d)條所要求的所有申報文件(或曾因爲之前也曾被要求提交文件而在較短時期內進行提交)，並且(2)是否已受到此類提交要求的規範在過去的90天內。是 ☒ 不是 ☐

請以勾選方式說明註冊人是否在前12個月內(或被要求提交文件的較短時期內)提交了電子版交互式數據文件，並且獲得了《電子文件規定》第405條的提交要求。是 ☒ 不是 ☐

請用複選標記表示公司是一家大型加速歸檔者、加速歸檔者、非加速歸檔者、較小的報告公司，還是新興成長型公司。請參閱《交易所法》第120億.2規定的「大型加速歸檔者」、「加速歸檔者」、「較小的報告公司」和「新興成長型公司」的定義。

如果是新興成長性企業，請勾選是否選擇使用延長的過渡期以符合任何新的或修訂的財務會計準則，根據《交易法》第13(a)節的規定。 ☐

請用勾選標記表明註冊人是否爲殼公司（根據交易法第120億.2條的定義）。是 ☐ 不是 ☒

截至2024年11月14日，Phio Pharmaceuticals Corp.的 1,055,219普通股份額，面值$0.0001，流通中。

phio pharmaceuticals 公司。

FORM 10-Q — 截至2024年9月30日的季度報告

指數

第一部分 — 財務信息

phio pharmaceuticals 公司。

簡明合併資產負債表

（金額以千爲單位，除每股數據外）

(未經審計)

隨附的註釋是不可分割的一部分 這些簡明的合併財務報表。

phio pharmaceuticals 公司。

簡明綜合經營表

(除股份和每股數據外，金額以千爲單位)

(未經審計)

附註是這些簡明合併財務報表不可或缺的一部分。

PHIO PHARMACEUTICALS 公司。

綜合損益表和綜合收益（損失）報表

優先股和股東權益

(金額以千為單位，股份數據除外)

(未經審計)

隨附附註屬於這些簡明合併財務報表的整體一部分。

PHIO制藥公司。

簡明財務報表現金流量表

（金額以千為單位）
（未經審計）

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the condensed consolidated balance sheets to the totals above:

The accompanying notes are an integral part of these condensed consolidated financial statements.

PHIO PHARMACEUTICALS CORP.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

In this report, “we,” “our,” “ours,” “us,” “Phio” and the “Company” refers to Phio Pharmaceuticals Corp. and our subsidiary, MirImmune, LLC and the ongoing business operations of Phio Pharmaceuticals Corp. and MirImmune, LLC, whether conducted through Phio Pharmaceuticals Corp. or MirImmune, LLC.

This management’s discussion and analysis of financial condition as of September 30, 2024 and results of operations for the three and nine months ended September 30, 2024 and 2023 should be read in conjunction with the audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2023, which was filed with the Securities and Exchange Commission (the “SEC”) on April 1, 2024 (the “2023 Form 10-K”).

This report contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements can be identified by words such as “intends,” “believes,” “anticipates,” “indicates,” “plans,” “expects,” “suggests,” “may,” “would,” “should,” “potential,” “designed to,” “will,” “ongoing,” “estimate,” “forecast,” “target,” “predict,” “could” and similar references, although not all forward-looking statements contain these words. Forward-looking statements are neither historical facts nor assurances of future performance. These statements are based only on our current beliefs, expectations and assumptions regarding the future of our business, future plans and strategies, projections, anticipated events and trends, the economy and other future conditions. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict and many of which are outside of our control. Risks that could cause actual results to vary from expected results expressed in our forward-looking statements include, but are not limited to, the impact to our business and operations by inflationary pressures, rising interest rates, recession fears, the development of our product candidates, our ability to execute on business strategies, our ability to develop our product candidates with collaboration partners, if any, and the success of any such collaborations, the timeline and duration for advancing our product candidates into clinical development, results from our preclinical and clinical activities, the timing or likelihood of regulatory filings and approvals, the success of our efforts to commercialize our product candidates if approved, our ability to manufacture and supply our product candidates for clinical activities, and for commercial use if approved, the scope of protection we are able to establish and maintain for intellectual property rights covering our technology platform, and our ability to obtain future financing. Our actual results and financial condition may differ materially from those indicated in the forward-looking statements as a result of a number of important factors, including those identified in our 2023 Form 10-K under the heading “Risk Factors” and in other filings the Company periodically makes with the SEC. Therefore, you should not rely on any of these forward-looking statements. Forward-looking statements contained in this Quarterly Report on Form 10-Q speak as of the date hereof and the Company does not undertake to update any of these forward-looking statements to reflect a change in its views or events or circumstances that occur after the date of this report except as required by law.

Overview

Phio is a clinical stage biotechnology company whose proprietary INTASYL® small interfering RNA gene silencing technology is designed to make immune cells more effective in killing tumor cells. We are developing therapeutics that are designed to leverage INTASYL to precisely target specific proteins that reduce the body’s ability to fight cancer, without the need for specialized formulations or drug delivery systems.

Cost Rationalization

In 2023, we implemented a cost rationalization program driven by our transition from a research company to a product development company. This transition resulted in a decision not to renew the lease for our corporate headquarters and primary research facility in Marlborough, Massachusetts, which expired on March 31, 2024. As of April 1, 2024, we have continued operations primarily as a remote business with a laboratory facility in Worcester, Massachusetts. Additionally, we rationalized research personnel and reduced our headcount by approximately 36%. These expense reductions have been redirected to funding the Phase 1b clinical trial with PH-762 directed toward skin cancer.

PH-762

PH-762 is an INTASYL compound designed to reduce the expression of cell death protein 1 (“PD-1”). PD-1 is a protein that inhibits T cells’ ability to kill cancer cells and is a clinically validated target in immunotherapy. Decreasing the expression of PD-1 can thereby increase the capacity of T cells, which protect the body from cancer cells and infections, to kill cancer cells.

Our preclinical studies have demonstrated that direct-to-tumor application of PH-762 resulted in potent anti-tumoral effects and have shown that direct-to-tumor treatment with PH-762 inhibits tumor growth in a dose dependent fashion in PD-1 responsive and refractory models. Importantly, direct-to-tumor administration of PH-762 resulted in activity against distant untreated tumors, indicative of a systemic anti-tumor response. We believe these data further support the potential for PH-762 to provide a strong local immune response without the dose immune-related adverse effects seen with systemic antibody therapy.

PH-762 is currently being evaluated in a U.S. multi-center Phase 1b dose-escalating clinical trial through the intratumoral injection of PH-762 for the treatment of patients with cutaneous squamous cell carcinoma, melanoma and Merkel cell carcinoma. The trial is designed to evaluate the safety and tolerability of neoadjuvant use of intratumorally injected PH-762, assess the tumor response, and determine the dose or dose range for continued study of PH-762 and is expected to enroll up to 30 patients. In November 2023, we announced the dosing of the first patient under a previously cleared Investigational New Drug (“IND”) application by the U.S. Food and Drug Administration. In May 2024, a safety monitoring committee reviewed data from the first dose cohort treated and recommended the escalation to the next dose concentration. Five (5) patients with cutaneous carcinomas have enrolled in Cohorts 1 and 2. Intratumoral injection of PH-762 has been well tolerated in all patients enrolled in the trial to date. There were no related adverse events, no serious adverse events, and no dose limiting toxicities or dose adjustments. The trial is open for the continued enrollment of patients and expects to complete enrollment of patients in the third quarter of 2025.

AgonOx Collaboration

Due to INTASYL’s ease of administration, we have shown that our compounds can easily be incorporated into current adoptive cell therapy (“ACT”) manufacturing processes. In ACT, T cells are usually taken from a patient's own blood or tumor tissue, grown in large numbers in a laboratory, and then given back to the patient to help the immune system fight cancer. By treating T cells with our INTASYL compounds while they are being grown in the laboratory, we believe our INTASYL compounds can improve these immune cells to make them more effective in killing cancer. Preclinical data generated in collaboration with AgonOx, Inc. (“AgonOx”), a private company developing a pipeline of novel immunotherapy drugs targeting key regulators of the immune response to cancer, demonstrated that treating AgonOx’s “double positive” tumor infiltrating lymphocytes (“DP TIL”) with PH-762 increased their tumor killing activity by two-fold.

In February 2021, we entered into a clinical co-development collaboration agreement (the “Clinical Co-Development Agreement”) with AgonOx to develop a T cell-based therapy using PH-762 and AgonOx’s DP TIL. Under the Clinical Co-Development Agreement, we and AgonOx were working to develop a T cell-based therapy using the our lead product candidate, PH-762, and AgonOx’s DP TIL technology. We had agreed to reimburse AgonOx up to $4 million in expenses incurred to conduct a Phase 1 clinical trial of PH-762 treated DP TIL in patients with advanced melanoma and other advanced solid tumors. We were also eligible to receive certain future development milestones and low single-digit sales-based royalty payments from AgonOx’s licensing of its DP TIL technology.

In May 2024, we terminated the Clinical Co-Development Agreement with AgonOx, which such termination was effective immediately. Effective as of the date of termination, the Clinical Co-Development Agreement and our continuing obligations and those of AgonOx thereunder were terminated in their entirety. We are no longer required to provide financial support for the development of costs incurred under the Clinical Co-Development Agreement, and we are no longer entitled to future development milestones or royalty payments from AgonOx’s licensing of its DP TIL technology. We will pay to AgonOx all payment obligations that accrued prior to the termination of the Clinical Co-Development Agreement. Remaining payments to be made to AgonOx as of September 30, 2024 total $35,000, which primarily relate to accrued obligations for patient fees and other miscellaneous costs as of the date of termination. Pursuant to the terms of the Clinical Co-Development Agreement, we and AgonOx are coordinating the orderly wind-down of the Phase 1 clinical trial. Each of us and AgonOx shall be responsible for its own costs and expenses incurred in connection with the wind-down of the Phase 1 clinical trial.

Prior to the termination of the Clinical Co-Development Agreement with AgonOx, PH-762 treated DP TIL were being evaluated in a Phase 1 clinical trial in the United States with up to 18 patients with advanced melanoma and other advanced solid tumors by AgonOx. The primary trial objectives were to evaluate the safety and to study the potential for enhanced therapeutic benefit from the administration of PH-762 treated DP TIL. AgonOx had enrolled three patients. The first two patients were treated with DP TIL only and the third patient was treated with a combination of DP TIL and PH-762.

Critical Accounting Policies and Estimates

The discussion and analysis of our financial condition and results of operations are based upon our condensed consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States. The preparation of these condensed consolidated financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. On an ongoing basis, we evaluate our estimates and base our estimates on historical experience and various other assumptions that are believed to be reasonable under the circumstances. Actual results may differ from these estimates under different assumptions or conditions and could have a material impact on our reported results.

There have been no material changes to our critical accounting policies and estimates as compared to those disclosed in our 2023 Form 10-K.

Results of Operations

The following data summarizes the results of our operations for the periods indicated, in thousands:

Comparison of the Three and Nine Months Ended September 30, 2024 and 2023

Operating Expenses

The following table summarizes our total operating expenses, for the periods indicated, in thousands:

Research and Development Expenses

Research and development expenses relate to compensation and benefits for research and development personnel, facility-related expenses, supplies, external services, costs to acquire technology licenses, research activities under our research collaboration agreement, expenses associated with preclinical and clinical development activities and other operating costs. Our research and development programs are focused on the development of immuno-oncology therapeutics based on our INTASYL therapeutic platform. Since we commenced operations, research and development expenses have been a significant portion of our total operating expenses and are expected to constitute the majority of our spending for the foreseeable future.

Research and development expenses for the three months ended September 30, 2024 decreased 64% as compared with the three months ended September 30, 2023. The decrease in research and development expenses was primarily driven by our cost rationalization measures in transitioning from a research company to a product development company resulting in a decrease of $286,000 in salary-related costs, including stock-based compensation expense, and $85,000 due to the wind-down of preclinical studies, and $835,000 primarily related to our former Clinical Co-Development Agreement from the prior year period.

Research and development expenses for the nine months ended September 30, 2024 decreased 50% as compared with the nine months ended September 30, 2023. The decrease in research and development expenses was primarily driven by our cost rationalization measures in transitioning from a research company to a product development company resulting in a decrease of $880,000 of expense due to the wind-down of preclinical studies, $1,108,000 in salary-related costs, including stock-based compensation expense, and $204,000 in lab supplies associated with the reduction in headcount, in addition to decreases in clinical consulting fees of $350,000 incurred in connection with our IND filing for PH-762 in the prior period, decreases in clinical trial-related fees for our former PH-762 trials in ACT and European clinical trial, and a decrease of $208,000 in manufacturing fees for PH-762.

We anticipate our research and development expenses will remain relatively consistent for the remainder of 2024.

General and Administrative Expenses

General and administrative expenses relate to compensation and benefits for general and administrative personnel, facility-related expenses, professional fees for legal and patent-related activities, audit, tax and consulting services, as well as other general corporate expenses.

General and administrative expenses for the three months ended September 30, 2024 decreased 2% as compared with the three months ended September 30, 2023. The decrease in general and administrative expenses was primarily due to a decrease in salary-related expenses.

General and administrative expenses for the nine months ended September 30, 2024 decreased 15% as compared with the nine months ended September 30, 2023. The decrease in general and administrative expenses was primarily due to decreases in salary-related expenses due to reductions in headcount of $196,000, in professional fees for a total of $229,000 primarily related to legal and patent expenses, and in our D&O insurance premium of $74,000 as compared to the prior year period.

We anticipate our general and administrative expenses will remain relatively consistent for the remainder of 2024.

Liquidity and Capital Resources

Historically, our primary source of funding has been through the sale of our securities. In the future, we will be dependent on obtaining funding from third parties, such as proceeds from the issuance of debt, sale of equity or strategic opportunities, in order to maintain our operations. We have reported recurring losses from operations since inception and expect that we will continue to have negative cash flows from our operations for the foreseeable future. At September 30, 2024, we had cash of $5,390,000 as compared with $8,490,000 at December 31, 2023.

On May 16, 2024, we entered into a purchase agreement (the “Purchase Agreement”) with Triton Funds LP (“Triton”), pursuant to which we agreed to sell, and Triton agreed to purchase, upon our request in one or more transactions, up to 95,833 shares of our common stock at a purchase of $6.48 per share (the “Purchase Price”), for aggregate gross proceeds of up to $621,000. On July 3, 2024, we terminated the Purchase Agreement with Triton effective immediately. No shares of common stock were sold by us pursuant to the Purchase Agreement prior to termination.

In July 2024, we entered into inducement letter agreements (the “July 2024 Inducement Letter Agreements”) with certain holders of certain of our existing warrants to purchase up to an aggregate of 545,286 shares of the Company’s common stock. The existing warrants were originally issued in February 2020 through December 2023, having exercise prices between $324.00 and $9.72 per share. Pursuant to the July 2024 Inducement Letter Agreements, these warrants were exercised for cash at a reduced exercise of $5.45 per share in consideration of our agreement to issue new unregistered five and one-half year term Series C warrants to purchase up to 583,098 shares of common stock at an exercise price of $5.45 and new unregistered eighteen month term Series D warrants to purchase up to 507,474 shares of common stock at an exercise price of $5.45, both issued and sold at a price of $0.125 per warrant share (the “July 2024 Financing”). The net proceeds to us from the July 2024 Financing were approximately $2,646,000, after deducting placement agent fees and offering expenses.

We have limited cash resources, have reported recurring losses from operations since inception, have negative operating cash flows and have not yet received product revenues. These factors raise substantial doubt regarding our ability to continue as a going concern, and our current cash resources may not provide sufficient capital to fund operations for at least the next 12 months from the date of the release of the condensed consolidated financial statements included elsewhere in this Quarterly Report. Our continuation as a going concern depends upon our ability to raise additional capital through equity offerings, debt offerings and/or strategic opportunities to fund our operations. There can be no assurance that we will be successful in accomplishing any of these plans in order to continue as a going concern. The condensed consolidated financial statements included elsewhere in this Quarterly Report do not include any adjustments to the recoverability and classification of recorded asset amounts and classification of liabilities that might be necessary should we be unable to continue as a going concern.

The following table summarizes our cash flows for the periods indicated, in thousands:

Net Cash Flow from Operating Activities

Net cash used in operating activities was $5,741,000 for the nine months ended September 30, 2024 as compared with $8,379,000 for the nine months ended September 30, 2023. The decrease was primarily due to a decrease in net loss of $3,407,000, a decrease in non-cash related items of $298,000 primarily related to reduced stock-based compensation expense, and a decrease in the changes in operating assets and liabilities of $472,000 primarily as a result of liabilities owed for the completion of preclinical studies in the prior year period.

Net Cash Flow from Investing Activities

There were no investing activities for the nine months ended September 30, 2024 as compared with $5,000 for the nine months ended September 30, 2023. The decrease in net cash used in investing activities was primarily due to laboratory and computer equipment purchases for our facility during the prior year period.

Net Cash Flow from Financing Activities

Net cash provided by financing activities was $2,641,000 for the nine months ended September 30, 2024 as compared with $5,010,000 for the nine months ended September 30, 2023. The decrease was primarily due to the net proceeds from the completion of our financing activities during the prior year period as compared with the current year period.

Contractual Obligations

Details of our obligations under the Clinical Co-Development Agreement with our former collaboration partner AgonOx can be found in Note 2 of the condensed consolidated financial statements. Outside of the above, there have been no material changes to the contractual obligations as disclosed in our 2023 Form 10-K.

Future Funding Requirements

At September 30, 2024, we had cash and cash equivalents of $5,390,000 and received estimated net proceeds of $2,646,000 from our July 2024 Financing. We expect that our cash and cash equivalents will enable us to fund our current operating plan into Q2 2025. Due to the difficulty and uncertainty associated with the design and implementation of preclinical studies and clinical trials, we will continue to assess our cash and cash equivalents and future funding requirements. However, there is no assurance that additional funding will be achieved and that we will succeed in our future operations. We expect to continue to incur substantial additional operating losses for at least the next several years as we continue to develop our product candidates and seek marketing approval and, subject to obtaining such approval, the eventual commercialization of our product candidates. If we obtain marketing approval for any of our product candidates, we will incur significant sales, marketing and manufacturing expenses. We also expect to continue to incur significant costs to comply with corporate governance, internal controls and similar requirements associated with operating as a public reporting company.

Actual cash requirements could differ from management’s projections due to many factors including additional investments in research and development programs, clinical trial expenses for PH-762, competing technological and market developments, general and administrative expenses, and the costs of any strategic acquisitions and/or development of complementary business opportunities.

We expect to seek additional funding to sustain our future operations and while we have successfully raised capital in the past, the ability to raise capital in future periods is not assured. We do not know if additional capital will be available when needed or on terms favorable to us or our stockholders. Collaboration, licensing or other agreements may not be available on favorable terms, or at all. If we seek to sell our equity securities, we do not know whether and to what extent we will be able to do so, or on what terms. If available, additional equity financing may be dilutive to stockholders, debt financing may involve restrictive covenants or other unfavorable terms and dilute our existing stockholders’ equity, and funding through collaboration, licensing or other commercial agreements may be on unfavorable terms, including requiring us to relinquish rights to certain of our technologies or products. If adequate financing is not available if and when needed, we may delay, reduce the scope of, or eliminate research or development programs, if any, postpone or cancel the pursuit of product candidates, or otherwise significantly curtail our operations to reduce our cash requirements and extend our capital.

As a smaller reporting company, we are not required to provide this information.

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Principal Executive Officer and our Principal Financial Officer, evaluated the effectiveness of disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) as of the end of the period covered by this report to ensure that information that we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms.

Our disclosure controls and procedures are designed to provide reasonable assurance of achieving their objectives. We believe that a control system, no matter how well designed and operated, cannot provide absolute assurance that the objectives of the control system are met, and no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within a company have been detected. Based on the evaluation of our disclosure controls and procedures as of the end of the period covered by this report, management, with the participation of our Principal Executive Officer and our Principal Financial Officer, concluded that our disclosure controls and procedures were effective at the reasonable assurance level as of such date.

Changes in Internal Control Over Financial Reporting

There have been no changes in our internal control over financial reporting that occurred during the quarter ending September 30, 2024 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II — OTHER INFORMATION

From time to time, we may become a party to various legal proceedings and complaints arising in the ordinary course of business. We are not currently a party to any actual or threatened material legal proceedings of which we are aware.

Other than set forth below, there have been no material changes in our risk factors set forth in Part I, “Item 1A. Risk Factors” in our 2023 Form 10-K. The risk factor set forth below and risk factors disclosed in Part I, “Item 1A. Risk Factors” in our 2023 Form 10-K could materially adversely affect our business, financial condition, or results of operations. This Quarterly Report on Form 10-Q also contains forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of certain factors, including these risks. Additional risks not currently known or currently material to us may also harm our business.

We may not be able to maintain compliance with the continued listing requirements of The Nasdaq Capital Market.

Nasdaq Listing Rule 5550(b)(1) requires companies listed on the Nasdaq Capital Market to maintain stockholders’ equity of at least $2.5 million for continued listing. As of September 30, 2024, our stockholders’ equity was $4.9 million and there can be no assurance that we will be able to maintain or increase our stockholders’ equity in the future. If our stockholders’ equity falls below $2.5 million, as a result of operating losses or for other reasons, or if we are unable to demonstrate to Nasdaq’s satisfaction that we subsequently regained compliance with this requirement, Nasdaq will notify us of such non-compliance. If we receive such notice from Nasdaq, in accordance with the Nasdaq Listing Rules, we will have 45 calendar days from the date of the notification to submit a plan to regain compliance with Nasdaq Listing Rule 5550(b)(1). If our compliance plan is accepted, we may be granted up to 180 calendar days from the date of the initial notification to evidence compliance. If our compliance plan is not accepted or we are otherwise unable to evidence compliance within Nasdaq’s allotted timeframe, Nasdaq may take steps to delist our common stock.

Such a delisting would have an adverse effect on the market liquidity of our securities, decrease the market price of our securities, result in the potential loss of confidence by investors, suppliers, customers and employees and fewer business development opportunities, and adversely affect our ability to obtain financing for the continuation of our operations. We are actively monitoring our stockholders’ equity and will consider any and all options available to us to maintain compliance with Nasdaq Listing Rule 5550(b)(1).

No sales or issuances of unregistered securities occurred that have not previously been disclosed in a Current Report on Form 8-K.

None.

Not applicable.

During the three months ended September 30, 2024, no director or officer of the Company adopted or terminated a Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement, as each term is defined in Item 408(a) of Regulation S-K.

EXHIBIT INDEX

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.