Sionna Therapeutics, Inc.
For the period ended Dec 31, 2025. Filed Mar 2, 2026.
View on SEC.govAbout 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.
FY2025 · Filed Mar 2, 2026
SION$3.280.0%Stored close · as of Nov 6, 2026
What changed in Risk Factors?
Read the current filingPrevious report: 10-K
Period ended 2024-12-31; filed 2025-03-20.
0002036042-25-000005
Item 1A. Risk FactorsCurrent report: 10-K
Period ended 2025-12-31; filed 2026-03-02.
0001628280-26-012996
Item 1A. Risk FactorsThe 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 382 previous paragraphs and 397 current paragraphs.
270 unchanged; 100 reworded; 25 added; 6 removed; 6 previous and 2 current paragraphs rearranged.
Tables are not compared: 0 previous and 0 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 (25)
Current report
•the availability of drug substance and drug product for use in production of our product candidates;
Current report
•the impact of competition with other products approved for the treatment of CF and product candidates in development for the treatment of CF; and
Current report
In addition, to the extent we choose to develop and commercialize a product candidate for use in combination with an approved therapy, any safety, efficacy, regulatory, manufacturing or supply issues that could arise with respect to the approved therapy could have an adverse impact on us. Prescribing information for the approved therapy, such as risk information like a boxed warning, or limitations of use, could negatively impact our ability to develop and commercialize a product as an add-on to the approved therapy. If the approved therapy is replaced as the standard of care, the FDA or comparable foreign regulatory authorities may require us to conduct additional clinical trials, the outcome of which would be uncertain and may not be predicted by earlier trials, or we may not be able to obtain adequate reimbursement from third-party payors. Further, the FDA or comparable foreign regulatory authorities could revoke approval of a therapy we evaluate in combination with our product candidate.
Current report
Our current and future product candidates could be delayed in receiving, or fail to receive, regulatory approval for many reasons, including the following:
Current report
•we may be unable to demonstrate that a product candidate’s benefits outweigh its risks;
Current report
There remains general uncertainty regarding future potential policy changes at the FDA and other regulatory agencies, which could adversely affect us or create a more challenging or costly environment to pursue the development of new therapeutic products. Additionally, state governments may attempt to address or react to changes at the federal level with changes to their own regulatory frameworks in a manner that is adverse to our operations. If we become negatively impacted by changes in regulatory policy, there could be a material adverse effect on us and our business.
Current report
•budget reductions, hiring freezes, or similar actions at clinical trial sites and other institutions negatively impacting the ability of sites to conduct clinical trials or increasing the costs to us of conducting our trials, including, for example, a proposed action to freeze or reduce the budget of the National Institutes of Health as related to its funding for medical research.
Current report
Even in the absence of obtaining Fast Track and/or Breakthrough Therapy Designations, a sponsor can seek priority review at the time of submitting a marketing application. The FDA may designate a product for priority review if it is a product that treats a serious condition and, if approved, would provide a significant improvement in safety or effectiveness when compared with other available therapies. Significant improvement may be illustrated by evidence of increased effectiveness in the treatment of a condition, elimination or substantial reduction of a treatment-limiting adverse reaction, documented enhancement of patient compliance that may lead to improvement in serious outcomes, or evidence of safety and effectiveness in a new subpopulation. A priority review designation is intended to direct overall attention and resources to the evaluation of such applications, and to shorten the FDA’s goal for taking action on a marketing application from ten months to six months from FDA’s acceptance of the application for review. Priority review designation may be rescinded if a product no longer meets the qualifying criteria.
Current report
Any product candidate for which we obtain marketing approval could be subject to restrictions or withdrawal from the market, and we may be subject to substantial penalties if we fail to comply with regulatory requirements or if we experience unanticipated problems with our product candidates, when and if any of them is approved.
Current report
•additional foreign regulatory requirements including with respect to data privacy and security, which may impose heightened requirements and data transfer restrictions;
Current report
Due to the significant resources required for the development of our pipeline, and depending on our ability to access capital, we must prioritize the development of certain product candidates over others. We may expend our limited resources to pursue a particular product candidate or indication and fail to capitalize on product candidates or indications that may be more profitable or for which there is a greater likelihood of success.
Current report
Directors, including Defense, Justice, HHS, Commerce, National Intelligence, Homeland Security, State, and National Cyber. The Director of OMB will thereafter review and update that list at least annually, based on recommendations from those key federal Secretaries and Directors. We have an agreement with a Chinese biotechnology company, pursuant to which it may manufacture certain of our clinical trial materials from time to time. This Chinese company was initially identified as a "biotechnology company of concern" in an earlier proposed version of the BIOSECURE Act, but that legislation did not pass, and the company is not named in the final law; however, it could be added in the future. The BIOSECURE Act has the potential to severely restrict the ability of companies, including us, to work with certain Chinese biotechnology companies of concern without losing the ability to contract with, or otherwise receive funding from, the U.S. government. Additionally, our use of foreign CROs and CDMOs, including those located in China, may be subject to unanticipated changes in the geopolitical landscape that could have negative impacts on our business operations.
Current report
There have been, and may continue to be, significant changes to U.S. trade policies, sanctions, legislation, treaties, and tariffs, including, but not limited to, trade policies and tariffs affecting products from outside of the U.S. The extent and duration of increased tariffs and the resulting impact on general economic conditions and on our business are not known and depend on various factors, such as negotiations between the U.S. and affected countries, their respective responses, potential exemptions or exclusions, and availability and cost of alternative sources of supply. Supply chain disruptions and delays could also negatively impact our cost of materials and production processes. If we are unable to obtain necessary materials in sufficient quantity and in a timely manner, the development of our product candidates may be delayed, which could significantly harm our business.
Current report
The U.S. has recently taken steps intended to reduce drug prices and establish and communicate most-favored-nation price targets to pharmaceutical manufacturers to bring prices for American patients in line with comparably developed nations. Several large pharmaceutical companies have already started to voluntarily reduce their pricing on select drugs indexed to lower prices around the globe. In addition, at the state level, legislatures have increasingly passed legislation and implemented regulations with similar goals, as well as laws designed to control pharmaceutical and biotherapeutic product pricing, including restrictions on pricing or reimbursement at the state government level, limitations on discounts to patients, marketing cost disclosure and transparency measures, restrictions or other limitations on patient assistance, and, in some cases, policies to encourage importation from other countries (subject to federal approval) and bulk purchasing.
Current report
This variability and unpredictability could also result in our failing to meet the expectations of industry or financial analysts or investors for any period. If our revenue or operating results fall below the expectations of analysts or investors or below any forecasts we may provide to the market, or if the forecasts we provide to the market are below the expectations of analysts or investors, the price of our common stock could decline substantially. Such a stock price decline could occur even if we have met any previously publicly stated revenue or earnings guidance.
Current report
•general economic, geopolitical and stock market conditions; and
Current report
Our executive officers, directors, principal stockholders, and their respective affiliates own a significant percentage of our stock and are able to exert significant control over matters subject to stockholder approval.
Current report
Our contracts may not contain limitations of liability, and even where they do, there can be no assurance that limitations of liability in our contracts are sufficient to protect us from liabilities, damages or claims related to our data privacy and security obligations. Further, although we maintain cyber liability insurance, we cannot be sure that our insurance coverage will be adequate or sufficient to protect us from or to mitigate liabilities arising out of our privacy and security practices, that such coverage will continue to be available on commercially reasonable terms or at all, or that such coverage will pay future claims. In addition to adverse impacts relating to experiencing a security incident, third parties may gather, collect or infer sensitive information about us from public sources, data brokers or other means that reveals competitively sensitive details about our organization and could be used to undermine our competitive advantage or market position.
Current report
Additionally, through executive and legislative action, the federal government has taken steps to restrict data transactions involving certain sensitive data categories – including health data, genetic data, and biospecimens – with persons or entities affiliated with China and certain other countries of concern. These current and future data privacy laws and regulations may require us to modify our data collection or processing practices and policies, incur substantial costs and expenses in an effort to comply and increase our potential exposure to regulatory enforcement, reputational damage, and/or litigation.
Current report
Artificial intelligence presents risks and challenges that can impact our business, including by posing cybersecurity risks to our confidential information, proprietary information, and personal data.
Current report
We may use, and our vendors may incorporate, artificial intelligence, or AI, both in our own development and implementation of AI and through the adoption of commercially available tools. The use of AI presents risks and challenges that could adversely affect our business and reputation, including cybersecurity, data privacy, IT, confidentiality, regulatory, legal, operational, competitive, reputational, intellectual property and other risks. For example, use of certain AI tools may increase the risk of unauthorized disclosure of confidential information, compromise of proprietary intellectual property, or inadvertent inclusion of third-party intellectual property or other protected material, which could result in disputes, claims of infringement, legal liabilities or financial losses. The rapidly evolving regulatory landscape surrounding AI also poses a risk, as new laws and regulations could impose additional compliance burdens, resulting in increased operational costs to comply with U.S. and non-U.S. laws concerning the use of AI, the nature of which cannot be determined at this time.
Current report
Additionally, our vendors may incorporate AI tools into their offerings, and the providers of these AI tools may not meet existing or rapidly evolving regulatory or industry standards, including with respect to privacy and data security. Further, bad actors around the world use increasingly sophisticated methods, including the use of AI, to engage in illegal activities involving the theft and misuse of personal information, confidential information and intellectual property. The use of generative AI models in our internal or third-party systems may create new attack surfaces or methods for adversaries, which could impact us and our vendors. Any of these effects could damage our reputation, result in the loss of valuable property and information, cause us to breach applicable laws and regulations, and adversely impact our business.
Current report
We are subject to certain reporting requirements of the Exchange Act. Our disclosure controls and procedures are designed to reasonably assure that information required to be disclosed by us in reports we file or submit under the Exchange Act is accumulated and communicated to management, recorded, processed, summarized, and reported within the time periods specified in the rules and forms of the SEC. We believe that
Current report
For example, under H.R. 1, taxpayers are now permitted to immediately deduct domestic research and development expenses for taxable years beginning after December 31, 2024. Taxpayers may alternatively elect to capitalize and amortize such expenses. In addition, H.R. 1 provides that for taxable years beginning after December 31, 2021 and before January 1, 2025, certain eligible taxpayers generally may elect to retroactively deduct expenses for domestic research and development expenses in such taxable years by filing amended tax returns for such taxable years, and all other taxpayers that are not eligible to make such an election and that amortized expenses for domestic research and development expenses in such taxable years generally may elect to accelerate and deduct the remaining unamortized amounts of such expenses (i) in the first taxable year beginning after December 31, 2024, or (ii) ratably over the two-taxable year period beginning with the first taxable year beginning after December 31, 2024. However, pursuant to Section 174 of the IRC, in taxable years beginning after December 31, 2021, foreign research and development expenses must continue to be capitalized and amortized.
Current report
We incur significant costs and demands upon management as a result of being a public company.
Removed paragraphs (6)
Previous report
Our assumptions about the development potential of SION-719 and SION-451 are based entirely on the data generated from our ongoing Phase 1 clinical trials of SION-719 and SION-451 in healthy subjects and from preclinical studies. We have not, as a company, completed any clinical trials of our product candidates in any CF patients to date. We may also observe materially and adversely different safety results as we continue to conduct our clinical trials.
Previous report
Due to the significant resources required for the development of our product candidates, we must decide which product candidates and indications to pursue and advance and the amount of resources to allocate to each. Our decisions concerning the allocation of research, development, collaboration, management and financial resources toward particular product candidates, therapeutic areas or indications may not lead to the development of viable commercial products and may divert resources away from better opportunities. For example, we intend to select an NBD1 stabilizer product candidate after the completion of our ongoing Phase 1 clinical trials of SION-719 and SION-451, and a complementary modulator product candidate from our two most advanced modulator product candidates, galicaftor and SION-109. If we make incorrect determinations regarding the viability or market potential of any of our current or future product candidates, or misread trends in the pharmaceutical industry, our business, financial condition and results of operations could be materially and adversely affected. As a result, we may fail to capitalize on viable commercial products or profitable market opportunities, be required to forego or delay pursuit of opportunities with other product candidates or other diseases and disease pathways that may later prove to have greater commercial potential than those we choose to pursue, or relinquish valuable rights to such product candidates through collaboration, licensing or royalty arrangements in cases in which it would have been advantageous for us to invest additional resources to retain sole development and commercialization rights.
Previous report
Further, job candidates and existing employees often consider the value of the stock awards they receive in connection with their employment. If the perceived benefits of our stock awards decline, either because we are a public company or for other reasons, it may harm our ability to recruit and retain highly skilled employees. Our employees may be more likely to leave us if the shares they own have significantly appreciated in value relative to the original purchase prices of the shares, or if the exercise prices of the options that they hold are significantly below the market price of our common stock, particularly after the expiration of the lock-up agreements described herein.
Previous report
Sales of a substantial number of shares of our common stock by our stockholders in the public market could cause the market price of our common stock to drop significantly, even if our business is doing well.
Previous report
Sales of a substantial number of shares of our common stock in the public market could occur at any time. Lock-up agreements covering approximately 51.6 million shares of our outstanding common stock entered into in connection with our initial public offering will expire in August 2025. After the lock-up agreements expire, these shares are able to be sold, subject to any applicable volume limitations under federal securities laws, at any time. If our stockholders sell, or the market perceives that our stockholders intend to sell, substantial amounts of our common stock in the public market, the market price of our common stock could decline significantly and impair our ability to raise adequate capital through the sale of additional equity or equity-linked securities at a time and price that we deem appropriate.
Reworded paragraphs (100)
Previous wording
We are a clinical-stage biopharmaceutical company and have incurred significant operating losses since inception and anticipate that we will continue to incur significant operating losses for the foreseeable future. Our net losses were $61.7 million and $47.3 million for the years ended December 31, 2024 and 2023, respectively. We had an accumulated deficit of $181.1 million and $119.4 million as of December 31, 2024 and 2023, respectively. We may never achieve or maintain profitability.
Current wording
We are a clinical-stage biopharmaceutical company and have incurred significant operating losses since inception and anticipate that we will continue to incur significant operating losses for the foreseeable future. Our net losses were $75.3 million and $61.7 million for the years ended December 31, 2025 and 2024, respectively. We had an accumulated deficit of $256.4 million and $181.1 million as of December 31, 2025 and 2024, respectively. We may never achieve or maintain profitability.
Previous wording
We are a clinical-stage biopharmaceutical company with a limited operating history. We have incurred operating losses in each year since our inception. Our net losses were $61.7 million and $47.3 million for the years ended December 31, 2024 and 2023, respectively. We had an accumulated deficit of $181.1 million and $119.4 million as of December 31, 2024 and 2023, respectively. Substantially all of our operating losses have resulted from costs incurred in connection with our research and development programs and from general and administrative costs associated with our operations. Our prior losses, combined with expected future losses, have had and will continue to have an adverse effect on our stockholders’ deficit and working capital.
Current wording
We are a clinical-stage biopharmaceutical company with a limited operating history. We have incurred operating losses in each year since our inception. Our net losses were $75.3 million and $61.7 million for the years ended December 31, 2025 and 2024, respectively. We had an accumulated deficit of $256.4 million and $181.1 million as of December 31, 2025 and 2024, respectively. Substantially all of our operating losses have resulted from costs incurred in connection with our research and development programs and from general and administrative costs associated with our operations. Our prior losses, combined with expected future losses, have had and will continue to have an adverse effect on our stockholders’ equity and working capital.
Previous wording
Since our inception in 2019, we have devoted substantially all of our efforts and financial resources to the development of our product candidates, the continuation of ongoing clinical trials, the commencement of new clinical trials and ongoing manufacturing to support our product candidates. Biopharmaceutical product development is a highly speculative undertaking and involves a substantial degree of risk. We have not yet demonstrated an ability to conduct later-stage clinical trials, obtain regulatory approval, manufacture any product on a commercial scale or conduct sales and marketing activities necessary for successful product commercialization, and there is no assurance that we will accomplish any of these abilities in the future. Our limited operating history makes any assessment of our future success and viability subject to significant uncertainty. In addition, if we obtain marketing approval for any of our product candidates, we will incur significant sales, marketing and manufacturing expenses. We expect to incur additional costs associated with operating as a public company. As a result, we expect to continue to incur significant expenses and increasing operating losses for the foreseeable future. Because of the numerous risks and uncertainties associated with developing pharmaceutical products, we are unable to predict the extent of any future losses or when we will become profitable, if at all. Even if we become profitable, we may not be able to sustain or increase our profitability on a quarterly or annual basis.
Current wording
Since our inception in 2019, we have devoted substantially all of our efforts and financial resources to the development of our product candidates, the continuation of ongoing clinical trials, the commencement of new clinical trials and ongoing manufacturing to support our product candidates. Biopharmaceutical product development is a highly speculative undertaking and involves a substantial degree of risk. We have not yet demonstrated an ability to conduct later-stage clinical trials, obtain regulatory approval, manufacture any product on a commercial scale or conduct sales and marketing activities necessary for successful product commercialization, and there is no assurance that we will accomplish any of these abilities in the future. Our limited operating history makes any assessment of our future success and viability subject to significant uncertainty. In addition, if we obtain marketing approval for any of our product candidates, we will incur significant sales, marketing and manufacturing expenses. We expect to continue to incur significant costs associated with operating as a public company. As a result, we expect to continue to incur significant expenses and increasing operating losses for the foreseeable future. Because of the numerous risks and uncertainties associated with developing pharmaceutical products, we are unable to predict the extent of any future losses or when we will become profitable, if at all. Even if we become profitable, we may not be able to sustain or increase our profitability on a quarterly or annual basis.
Previous wording
•continue to advance clinical development of our current and future product candidates, including conducting our ongoing clinical trials;
Current wording
•continue to advance clinical development of our current and future product candidates, including conducting our ongoing and planned clinical trials;
Previous wording
Our operations have consumed substantial amounts of cash since inception. Identifying potential product candidates and conducting preclinical testing and clinical trials is a time-consuming, expensive and uncertain process that takes years to complete, and we may never generate the necessary data or results required to obtain regulatory approvals and achieve product sales. We expect to continue to incur significant and increasing expenses and operating losses for the foreseeable future as we initiate and conduct clinical trials of our current and future product candidates, scale-up and manufacture our product candidates, advance our preclinical programs, seek marketing and regulatory approvals for any product candidates that successfully complete clinical trials and commercialize our products, if approved. Because the outcome of any clinical trial or preclinical study is highly uncertain, we cannot reliably estimate the actual amount of financing necessary to successfully complete the development and commercialization of any of our product candidates.
Current wording
Our operations have consumed substantial amounts of cash since inception. Identifying potential product candidates and conducting preclinical testing and clinical trials is a time-consuming, expensive and uncertain process that takes years to complete, and we may never generate the necessary data or results required to obtain regulatory approvals and achieve product sales. We expect to continue to incur significant and increasing expenses and operating losses for the foreseeable future as we initiate and conduct clinical trials of our current and any future product candidates, scale-up and manufacture our product candidates, advance our preclinical programs, seek marketing and regulatory approvals for any product candidates that successfully complete clinical trials and commercialize our products, if approved. Because the outcome of any clinical trial or preclinical study is highly uncertain, we cannot reliably estimate the actual amount of financing necessary to successfully complete the development and commercialization of any of our product candidates.
Previous wording
As of December 31, 2024, we had cash, cash equivalents and marketable securities of $168.0 million. In addition, we received net proceeds of $199.6 million from our initial public offering in February 2025. We believe that, based upon our current operating plans, our existing cash, cash equivalents and marketable securities will be sufficient to fund our operations into 2028. This estimate is based on assumptions that may prove to be wrong, and we could use our available capital resources sooner than we expect. Changes may occur beyond our control that would cause us to consume our available capital before that time, including but not limited to changes in progress of our development activities, acquisitions of additional product candidates and changes in regulation. Our future capital requirements will depend on many factors, including:
Current wording
As of December 31, 2025, we had cash, cash equivalents and marketable securities of $310.3 million, including net proceeds of $199.6 million from our initial public offering in February 2025. We believe that, based upon our current operating plans, our existing cash, cash equivalents and marketable securities will be sufficient to fund our operations into 2028. This estimate is based on assumptions that may prove to be wrong, and we could use our available capital resources sooner than we expect. Changes may occur beyond our control that would cause us to consume our available capital before that time, including but not limited to changes in progress of our development activities, acquisitions of additional product candidates and changes in regulations. Our future capital requirements will depend on, and could increase significantly as a result of, many factors, including:
Previous wording
•the scope, timing, progress, costs, complexity and results of discovery, preclinical development and clinical trials for our current or future product candidates, including our planned clinical trials of one of our nucleotide-binding domain (“NBD1”) stabilizer product candidates in combination with Vertex Pharmaceuticals, Inc.’s (“Vertex”) Trikafta, the current standard of care for the treatment of CF, and in combination with a complementary modulator product candidate;
Current wording
•the scope, timing, progress, costs, complexity and results of discovery, preclinical development and clinical trials for our current or future product candidates, including any additional expenses attributable to adjusting our anticipated development plans;
Previous wording
•the timing and amount of the milestone, royalty or other payments we must make to Sanofi SA (“Sanofi”), the Cystic Fibrosis Foundation (“CFF”), AbbVie Global Enterprises Ltd. (“AbbVie”) and any other third parties;
Current wording
•the timing and amount of the milestone, royalty or other payments we must make to Sanofi SA (“Sanofi”), the Cystic Fibrosis Foundation, AbbVie Global Enterprises Ltd. (“AbbVie”) and any other third parties;
Previous wording
•the effect of macroeconomic trends including inflation and interest rates;
Current wording
•the effect of macroeconomic trends including fluctuating inflation levels, capital markets disruption, and interest rates;
Previous wording
•addressing any potential supply chain interruptions or delays; and
Current wording
•addressing any potential supply chain interruptions or delays, which may be due in part to international tariffs; and
Previous wording
We will require additional capital to achieve our business objectives. Additional funds may not be available on a timely basis, on favorable terms or at all, and such funds, if raised, may not be sufficient to enable us to continue implementing our long-term business strategy. Further, our ability to raise additional capital may be adversely impacted by potentially worsening global economic conditions and the recent disruptions to and volatility in the credit and financial markets in the United States (“U.S.”) and worldwide resulting from factors that include but are not limited to, inflation, the Russia-Ukraine and Israel-Gaza conflicts, diminished liquidity and credit availability, declines in consumer confidence, declines in economic growth, increases in unemployment rates, uncertainty about economic stability and other factors. If the equity and credit markets deteriorate, it may make any necessary debt or equity financing more difficult to obtain, more costly and more dilutive. If we are unable to raise sufficient additional capital, we could be forced to curtail our planned operations and the pursuit of our growth strategy, or even cease operations.
Current wording
We will require additional capital to achieve our business objectives. Additional funds may not be available on a timely basis, on favorable terms or at all, and such funds, if raised, may not be sufficient to enable us to continue implementing our long-term business strategy. Further, our ability to raise additional capital may be adversely impacted by potentially worsening global economic conditions and the recent disruptions to and volatility in the credit and financial markets in the United States (“U.S.”) and worldwide resulting from factors that include but are not limited to, fluctuating inflation and capital markets disruptions, international tariffs, the Russia-Ukraine and Israel-Gaza conflicts, diminished liquidity and credit availability, declines in consumer confidence, declines in economic growth, increases in unemployment rates, uncertainty about economic stability and other factors. For example, the U.S. government has imposed substantial tariffs on most countries throughout the world and has further threatened to continue to broadly impose tariffs, which could lead to corresponding punitive actions by the countries with which the U.S. trades. If the equity and credit markets continue to deteriorate, it may make any necessary debt or equity financing more difficult to obtain, more costly and more dilutive. If we are unable to raise sufficient additional capital, we could be forced to curtail our planned operations and the pursuit of our growth strategy, or even cease operations.
Previous wording
We are substantially dependent on the success of at least one of our NBD1 stabilizers. If we are unable to advance an NBD1 stabilizer product candidate into later-stage clinical development or unable to obtain regulatory approval and commercialize an NBD1 stabilizer-anchored combination therapy for the treatment of cystic fibrosis, or experience significant delays in doing so, our business will be materially harmed.
Current wording
We are substantially dependent on the success of at least one of our nucleotide binding domain 1 ("NBD1") stabilizers. If we are unable to advance an NBD1 stabilizer product candidate into later-stage clinical development or unable to obtain regulatory approval and commercialize an NBD1 stabilizer-anchored combination therapy for the treatment of cystic fibrosis, or experience significant delays in doing so, our business will be materially harmed.
Previous wording
To date, as an organization, we have not completed the development of any product candidates. We are substantially dependent on the success of at least one of our NBD1 stabilizer product candidates, including SION-719 and SION-451, which are currently in Phase 1 clinical trials in healthy volunteers and in development for the treatment of cystic fibrosis (“CF”). Our NBD1 stabilizers are being developed for use either in combination with one of our complementary modulator candidates or the standard of care. We intend to select a complementary modulator candidate from our two most advanced modulator candidates, galicaftor (SION-2222), which has been evaluated in Phase 2 clinical trials conducted by AbbVie, and SION-109, which has been evaluated in a Phase 1 clinical trial.
Current wording
To date, as an organization, we have not completed the development of any product candidates. We are substantially dependent on the success of at least one of our NBD1 stabilizer product candidates, SION-719 and SION-451, which are currently in development for the treatment of cystic fibrosis ("CF"). Our NBD1 stabilizers are being developed for use either in combination with one of our complementary modulator candidates or the standard of care. We are currently evaluating SION-719 in a Phase 2a proof-of-concept clinical trial as an add-on to the standard of care for CF and SION-451 in a Phase 1 dual combination trial with each of our two most advanced complementary modulator candidates, galicaftor (SION-2222) and SION-109.
Previous wording
•the safety, tolerability and pharmacokinetic profile of our product candidates observed in clinical trials, potentially including in combination with the current standard of care;
Current wording
•the safety, tolerability and pharmacokinetic profile of our product candidates observed in clinical trials, including in combination with the standard of care;
Previous wording
•acceptance of regulatory submissions by the U.S. Food and Drug Administration (“FDA”) and/ or comparable foreign regulatory authorities for the conduct of clinical trials of our product candidates, including acceptance by the FDA of an investigational new drug application (“IND”) for our NBD1 stabilizer product candidate prior to commencement of our planned Phase 2 trials and our proposed design of such planned clinical trials;
Current wording
•acceptance of regulatory submissions by the U.S. Food and Drug Administration (“FDA”) and/ or comparable foreign regulatory authorities for the conduct of clinical trials of our product candidates, and the proposed design of our planned clinical trials;
Previous wording
•acceptance of our products, if approved, by CF patients, the medical community and third-party payors, and their perspective on the cost, safety, tolerability and efficacy and perceived advantages of alternative therapies for CF, including the current standard of care;
Current wording
•acceptance of our products, if approved, by CF patients, the medical community and third-party payors, and their perspective on the cost, safety, tolerability and efficacy and perceived advantages of alternative therapies for CF, including the standard of care;
Previous wording
•maintaining relationships with contract research organizations (“CROs”) and clinical sites for the clinical development of our product candidates and ability of such CROs and clinical sites to comply with clinical trial protocols, Good Clinical Practices (“GCPs”) and other applicable requirements;
Current wording
•maintaining relationships with contract research organizations (“CROs”) and clinical sites for the clinical development of our product candidates and the ability of such CROs and clinical sites to comply with clinical trial protocols, Good Clinical Practices (“GCPs”) and other applicable requirements;
Previous wording
•maintaining relationships with our third-party manufacturers and their ability to comply with current good manufacturing practices (“cGMPs”), as well as making arrangements with our third-party manufacturers for commercial manufacturing capabilities at a cost and scale sufficient to support commercialization;
Current wording
•our ability to establish and maintain relationships with third-party manufacturers and their ability to comply with current good manufacturing practices (“cGMPs”), as well as our ability to make arrangements with third-party manufacturers to ensure adequate supply for our clinical trials and commercial manufacturing capabilities at a cost and scale sufficient to support commercialization;
Previous wording
•the sufficiency of our financial resources to fund our operations; and
Current wording
•the sufficiency of our financial resources to fund our operations and our ability to raise necessary additional funds;
Previous wording
We are early in our development efforts. If we are unable to successfully develop, receive regulatory approval for and commercialize any product candidate or successfully develop any other product candidate or experience significant delays in doing so, our business will be substantially harmed.
Current wording
We are early in our development efforts. If we are unable to successfully develop, receive regulatory approval for and commercialize any product candidate, or experience significant delays in doing so, our business will be substantially harmed.
Previous wording
Our product candidates will require substantial additional investment, clinical development, regulatory review, approval in one or more jurisdictions and significant marketing efforts before we could generate any revenue from product sales, if ever. Given our early stage of development, it will take several years before we can demonstrate the safety and efficacy of a product candidate sufficient to warrant approval for commercialization, if we can do so at all.
Current wording
We are early in our development efforts. Each of our product candidates will require additional preclinical and/or clinical development and regulatory approval, and will require us to obtain sufficient manufacturing supply, capacity and expertise. We have not completed any clinical trials of our product candidates in any CF patients to date. Further, we will be required to build a commercial organization or successfully outsource commercialization, and make substantial investment and significant marketing efforts before we generate any revenue from product sales, if ever. Given our early stage of development, it will take several years before we can demonstrate the safety and efficacy of a product candidate sufficient to warrant approval for commercialization, if we can do so at all.
Previous wording
We do not have complete control over many of these factors, including certain aspects of clinical development and the regulatory submission process, potential threats to our intellectual property rights and the manufacturing, marketing, distribution and sales efforts of any future collaborator. If we are not successful with respect to one or more of these factors in a timely manner or at all, we could experience significant delays or an inability to successfully commercialize the product candidates we develop, which would materially harm our business. If we do not receive marketing approvals for our product candidates or any future product candidate we develop or if we experience delays in such approvals, we may not be able to continue our operations.
Current wording
We do not have complete control over many of the factors that affect our development efforts, including certain aspects of clinical development and the regulatory submission process, potential threats to our intellectual property rights and the manufacturing, marketing, distribution and sales efforts of any future collaborator. If we are not successful with respect to one or more of these factors in a timely manner or at all, we could experience significant delays or an inability to successfully commercialize the product candidates we develop, which would materially harm our business. If we do not receive marketing approvals for our product candidates or any future product candidate we develop or if we experience delays in such approvals, we may not be able to continue our operations.
Previous wording
Further, conducting clinical trials in foreign countries, as we may do for our current or future product candidates, presents additional risks that may delay completion of our clinical trials. These risks include the failure of enrolled patients in foreign countries to adhere to clinical protocol as a result of differences in healthcare services or cultural customs, failure to properly translate or interpret patient-reported outcome endpoints, managing additional administrative burdens associated with foreign regulatory schemes as well as political and economic risks relevant to such foreign countries.
Current wording
Further, conducting clinical trials in foreign countries, as we are currently doing and plan to do in the future for our current or future product candidates, presents additional risks that may delay completion of our clinical trials. These risks include the failure of enrolled patients in foreign countries to adhere to clinical protocol as a result of differences in healthcare services or cultural customs, failure to properly translate or interpret patient-reported outcome endpoints, managing additional administrative burdens associated with foreign regulatory schemes as well as political and economic risks relevant to such foreign countries.
Previous wording
The foregoing makes our ability to successfully and timely complete development of our product candidates and obtain regulatory approval for them less certain. If we are unable to develop, or obtain marketing approval for, or, if approved, successfully commercialize our product candidates, our business, financial condition, results of operations and prospects could be materially harmed.
Current wording
The foregoing makes our ability to successfully and timely complete development of our product candidates and obtain regulatory approval for them less certain. If we are unable to develop, or obtain marketing approval for, or, if approved, successfully commercialize our product candidates, our business, financial condition, results of operations and prospects would be materially harmed.
Previous wording
We intend to develop an NBD1 stabilizer product candidate to be administered in combination with one of our complementary modulators or as an add-on to the standard of care. Developing combination treatments increases complexity and risk, including risks of drug-drug interactions, unforeseen side effects or failures in our clinical trials that could delay or prevent their regulatory approval or limit the commercial profile of an approved label.
Current wording
We intend to develop a proprietary dual combination of an NBD1 stabilizer with a complementary modulator and/or an NBD1 stabilizer as an add-on to the standard of care. Developing combination treatments increases complexity and risk, including risks of drug-drug interactions, unforeseen side effects or failures in our clinical trials that could delay or prevent their regulatory approval or limit the commercial profile of an approved label.
Previous wording
The current treatment paradigm in CF for all patients with the F508del mutation is based on a combination of drug therapies. After the completion of our ongoing Phase 1 clinical trials of SION-719 and SION-451, we intend to advance an NBD1 stabilizer product candidate for further development in combination with other compounds, specifically, with one of our complementary modulator product candidates, or with the standard of care. We intend to select a complementary modulator candidate from our two most advanced modulator candidates, galicaftor and SION-109. The use of our product candidates in combination with each other and with an approved product may subject us to risks that we would not face if our product candidates were being developed to be administered as a monotherapy.
Current wording
The current treatment paradigm in CF for all patients with the F508del mutation is based on a combination of drug therapies. We are currently evaluating SION-719 in combination with the standard of care in a Phase 2a proof-of-concept trial in CF patients, which we initiated in October 2025. We are also currently evaluating SION-451 in dual combinations with our two most advanced complementary modulator candidates, SION-2222 and SION-109 in a Phase 1 trial in healthy volunteers. The development of a proprietary dual combination is our prioritized development path. In either development scenario, the use of our product candidates in combination with each other or with an approved product may subject us to risks that we would not face if our product candidates were being developed to be administered as a monotherapy.
Previous wording
For example, either the combination of our product candidates with each other, or our NBD1 stabilizer with the standard of care, may result in adverse side effects or toxicities that the product candidates or other therapy do not produce when used alone. In addition, the product candidates may interact with each other, or with the approved product, in undesirable ways that could negatively impact the efficacy of our product candidates, any components of the approved product, or the combination as a whole. Testing product candidates in combination with each other and with an approved therapy may increase the risk of significant adverse effects or failed clinical trials. The timing, outcome and cost of developing products to be used in combination with other therapies is difficult to predict and dependent on a number of factors that are outside our reasonable control.
Current wording
For example, either the combination of our product candidates with each other, or an NBD1 stabilizer with the standard of care, may result in adverse side effects or toxicities that the product candidates or other therapy do not produce when used alone. In addition, the product candidates may interact with each other, or with the approved product, in undesirable ways that could negatively impact the efficacy of our product candidates, any components of the approved product, or the combination as a whole. Testing product candidates in combination with each other and with an approved therapy may increase the risk of significant adverse effects or failed clinical trials. The timing, outcome and cost of developing products to be used in combination with other therapies is difficult to predict and dependent on a number of factors that are outside our reasonable control.
Previous wording
In addition, to the extent we choose to develop a product candidate for use in combination with an approved therapy, the FDA or comparable foreign regulatory authorities could revoke approval of, or that safety, efficacy, manufacturing or supply issues could arise with, the therapy used in combination with our product candidate. If the therapies we use in combination with our product candidates are replaced as the standard of care, the FDA or comparable foreign regulatory authorities may require us to conduct additional clinical trials, or we may not be able to obtain adequate reimbursement from third-party payors. The occurrence of any of these risks could result in our product candidates, if approved, being removed from the market or being less successful commercially. If the FDA or comparable foreign regulatory authorities do not approve or revoke their approval of, or if safety, efficacy, manufacturing, or supply issues arise with, therapies we choose to evaluate in combination with any of our product candidates, we may be unable to obtain regulatory approval of or to commercialize such product candidates in combination with these therapies. If we experience safety, tolerability or toxicity issues in our planned combination treatment clinical trials, or the data from these trials regarding the efficacy of the combinations are not favorable, our clinical development plans could be materially negatively affected or delayed, or we may not receive regulatory approval for our product candidates, which would materially harm our business and likely cause the market price of our common stock to decline.
Current wording
The occurrence of any of these risks could result in an add-on product candidate, if developed and approved, being removed from the market or being less successful commercially. If the FDA or comparable foreign regulatory authorities revoke their approval of, or if safety, efficacy, manufacturing, or supply issues arise with respect to, therapies we choose to evaluate in combination with any of our product candidates, we may be unable to obtain regulatory approval of or to commercialize such product candidates in combination with these therapies. If we experience safety, tolerability or toxicity issues in any of our ongoing or planned combination treatment clinical trials, or the data from these trials regarding the efficacy of the combinations are not favorable, our clinical development plans could be materially negatively affected or delayed, or we may not receive regulatory approval for our product candidates, which would materially harm our business and likely cause the market price of our common stock to decline.
Previous wording
We are not permitted to market, commercialize, sell or promote any product candidate in the U.S. until we receive regulatory approval of a new drug application (“NDA”) for such product candidate in a specific indication from the FDA. Our business is dependent on our ability to successfully complete preclinical and clinical development of, obtain regulatory approval for, and, if approved, successfully commercialize our product candidates and any future product candidates in a timely manner. The time required to obtain approval or other marketing authorizations by the FDA and comparable foreign authorities is unpredictable, and it typically takes many years following the commencement of clinical trials and depends upon numerous factors, including the substantial discretion of the regulatory authorities. In addition, approval policies, regulations and the type and amount of clinical data necessary to gain approval may change during the course of a product candidate’s clinical development and may vary among jurisdictions. We have not obtained regulatory approval for any product candidate, and it is possible that we may never obtain regulatory approval for any product candidates we may seek to develop in the future.
Current wording
We are not permitted to market, commercialize, sell or promote any product candidate in the U.S. until we receive regulatory approval of a new drug application (“NDA”) for such product candidate in a specific indication from the FDA. Our business is dependent on our ability to successfully complete preclinical and clinical development of, obtain regulatory approval for, and, if approved, successfully commercialize our product candidates and any future product candidates in a timely manner. The time required to obtain approval or other marketing authorizations by the FDA and comparable foreign authorities is unpredictable, and it typically takes many years following the commencement of clinical trials and depends upon numerous factors, including the substantial discretion of the regulatory authorities. In addition, approval policies, regulations and the type and amount of data necessary to gain approval may change during the course of a product candidate’s clinical development and may vary among jurisdictions. We have not obtained regulatory approval for any product candidate, and it is possible that we may never obtain regulatory approval for any product candidates in the future.
Previous wording
Prior to obtaining approval to commercialize any product candidate in the U.S. or abroad, we must demonstrate with substantial evidence from well-controlled clinical trials, to the satisfaction of the FDA or comparable foreign regulatory authorities, that such product candidates are safe and effective for their intended uses. Results from preclinical studies and clinical trials can be interpreted in different ways. Even if we believe the preclinical or clinical data for our product candidates are promising, such data may not be sufficient to support approval by the FDA and other regulatory authorities. The FDA may also require us to conduct additional preclinical studies or clinical trials for our product candidates either prior to or after approval, or it may object to elements of our clinical development programs. For example, to receive regulatory approval for an NBD1 stabilizer as an add-on to standard of care, we would have to demonstrate clinically meaningful improvements in efficacy with the NBD1 stabilizer co-administered with the standard of care, as compared to the standard of care alone. It may be harder to show a clinically meaningful improvement in efficacy in a clinical trial where all participants are receiving the standard of care. Furthermore, because we intend to develop an NBD1 stabilizer product candidate in combination with one of our complementary modulator product candidates, we will have to satisfy the regulatory agencies’ requirements to demonstrate the contribution of each component in the combination. As neither product candidate in this potential combination is an approved drug, the FDA and other regulatory authorities will require full demonstration of the safety of each component (alone and in combination), as well as the efficacy of the combination (and the contribution of each component). In either combination product scenario (proprietary dual combination or add-on to standard of care), additional safety, efficacy and/or drug-drug interaction data may be required relative to what would be required for a single-agent study.
Current wording
Prior to obtaining approval to commercialize any product candidate in the U.S. or abroad, we must demonstrate with substantial evidence from well-controlled clinical trials, to the satisfaction of the FDA or comparable foreign regulatory authorities, that such product candidate is safe and effective for its intended use. Results from preclinical studies and clinical trials can be interpreted in different ways. Even if we believe the preclinical or clinical data for our product candidates are promising, such data may not be sufficient to support approval by the FDA and other regulatory authorities. The FDA may also require us to conduct additional preclinical studies or clinical trials for our product candidates either prior to or after approval, or it may object to elements of our clinical development programs. For example, to receive regulatory approval for an NBD1 stabilizer as an add-on to standard of care, we would have to demonstrate clinically meaningful improvements in efficacy with the NBD1 stabilizer co-administered with the standard of care, as compared to the standard of care alone. It may be harder to show a clinically meaningful improvement in efficacy in a clinical trial where all participants are receiving the standard of care. Furthermore, because we intend to develop an NBD1 stabilizer product candidate in combination with one of our complementary modulator product candidates, we will have to satisfy the regulatory agencies’ requirements to demonstrate the contribution of each component in the combination. As neither product candidate in this potential combination is an approved drug, the FDA and other regulatory authorities will require full demonstration of the safety of each component (alone and in combination), as well as the efficacy of the combination (and the contribution of each component). In either combination product scenario (proprietary dual combination or add-on to standard of care), additional safety, efficacy and/or drug-drug interaction data may be required relative to what would be required for a monotherapy.
Previous wording
Of the large number of products in development, only a small percentage successfully complete the FDA or foreign regulatory approval processes and are commercialized. The lengthy approval and marketing authorization process as well as the unpredictability of future clinical trial results may result in our failing to obtain regulatory approval to market our product candidates, which would significantly harm our business, financial condition, results of operations and prospects. The FDA and comparable foreign authorities have substantial discretion in the approval process and determining when or whether regulatory approval will be granted for any product candidate that we develop. The U.S. Supreme Court’s July 2024 decision to overturn prior established case law giving deference to regulatory agencies’ interpretations of ambiguous statutory language has introduced uncertainty regarding the extent to which the FDA’s regulations, policies and decisions may become subject to increasing legal challenges, delays or changes. Even if we believe the data collected from ongoing and/or future clinical trials of our product candidates are promising, such data may not be sufficient to support approval by the FDA or any other regulatory authority.
Current wording
Of the large number of products in development, only a small percentage successfully complete the FDA or foreign regulatory approval processes and are commercialized. The lengthy approval and marketing authorization process as well as the unpredictability of future clinical trial results may result in our failing to obtain regulatory approval to market our product candidates, which would significantly harm our business, financial condition, results of operations and prospects. The FDA and comparable foreign authorities have substantial discretion in the approval process and determining when or whether regulatory approval will be granted for any product candidate that we develop. The U.S. Supreme Court’s July 2024 decision to overturn prior established case law giving deference to regulatory agencies’ interpretations of ambiguous statutory language has introduced uncertainty regarding the extent to which the FDA’s regulations, policies and decisions may become subject to increasing legal challenges, delays or changes.
Previous wording
Even if we complete clinical testing and receive approval of a NDA or foreign marketing application for our current or future product candidates, the FDA or the applicable foreign regulatory agency may grant approval or other marketing authorization contingent on the performance of costly additional clinical trials, including post-marketing clinical trials. The FDA or the applicable foreign regulatory agency also may approve or authorize for marketing a product candidate for a more limited indication or patient population than we originally request, and the FDA or applicable foreign regulatory authority may not approve or authorize the labeling that we believe is necessary or desirable for the successful commercialization of a product candidate. Any delay in obtaining, or inability to obtain, applicable regulatory approval or other marketing authorization, or failure to obtain our desired product label, would delay or prevent commercialization of that product candidate and would materially adversely impact our business and prospects.
Current wording
Even if we complete clinical testing and receive approval of an NDA or foreign marketing application for our current or future product candidates, the FDA or the applicable foreign regulatory agency may grant approval or other marketing authorization contingent on the performance of costly additional clinical trials, including post-marketing clinical trials. The FDA or the applicable foreign regulatory agency also may approve or authorize for marketing a product candidate for a more limited indication or patient population than we originally request, and the FDA or applicable foreign regulatory authority may not approve or authorize the labeling that we believe is necessary or desirable for the successful commercialization of a product candidate. Any delay in obtaining, or inability to obtain, applicable regulatory approval or other marketing authorization, or failure to obtain our desired product label, would delay or prevent commercialization of that product candidate and would materially adversely impact our business and prospects.
Previous wording
In addition, the FDA and other regulatory authorities may change their policies, issue additional regulations or revise existing regulations or take other actions, which may prevent or delay approval of our future product candidates under development on a timely basis. Such policy or regulatory changes could impose additional requirements upon us that could delay our ability to obtain approvals, increase the costs of compliance or restrict our ability to maintain any marketing authorizations we may have obtained. Further, macroeconomic and other global conditions have impacted and could in the future impact the ability of the FDA and comparable foreign regulatory authorities to provide any required approvals or marketing authorizations for our product candidates or result in the delay of such approvals or authorizations. Finally, with the change in presidential administrations in 2025, there is substantial uncertainty as to how, if at all, the new administration will seek to modify or revise the requirements and policies of the FDA, the SEC and other regulatory agencies with jurisdiction over our product candidates and our business. The impending uncertainty could present new challenges or potential opportunities as we navigate the clinical development and approval process for our product candidates.
Current wording
In addition, the FDA and other regulatory authorities may change their policies, issue additional regulations or revise existing regulations or take other actions, which may prevent or delay approval of our future product candidates under development on a timely basis. Such policy or regulatory changes could impose additional requirements upon us that could delay our ability to obtain approvals, increase the costs of compliance or restrict our ability to maintain any marketing authorizations we may obtain. Further, macroeconomic and other global conditions have impacted and could in the future impact the ability of the FDA and comparable foreign regulatory authorities to provide any required approvals or marketing authorizations for our product candidates or result in the delay of such approvals or authorizations. Changes to the requirements and policies of the FDA, the SEC and other regulatory agencies with jurisdiction over our product candidates and our business could present new challenges or potential opportunities as we navigate the clinical development and approval process for our product candidates. Some of these efforts have manifested to date in the form of personnel measures that could impact the FDA's ability to hire and retain key personnel, which could result in delays or limitations on our ability to obtain guidance from the FDA on our product candidates in development, to have preapproval inspections completed in a timely fashion, and to obtain the requisite regulatory approvals in the future.
Previous wording
We may incur additional costs and experience delays in ongoing clinical trials for our product candidates, and we do not know whether future clinical trials, if any, will begin on time, need to be redesigned, enroll an adequate number of patients on time or be completed on schedule, if at all. We may experience numerous unforeseen events during or as a result of preclinical studies or clinical trials that could delay or prevent our ability to continue or complete clinical development, receive marketing approval or commercialize our product candidates, including:
Current wording
We may incur additional costs and experience delays in clinical trials for our product candidates, and we do not know whether future clinical trials, if any, will begin on time, need to be redesigned, enroll an adequate number of patients on time or be completed on schedule, if at all. We may experience numerous unforeseen events during or as a result of preclinical studies or clinical trials that could delay or prevent our ability to continue or complete clinical development, receive marketing approval or commercialize our product candidates, including:
Previous wording
•future collaborators, if any, may conduct clinical trials in ways they view as advantageous to them but that are suboptimal to us;
Current wording
•future collaborators, if any, conducting clinical trials in ways they view as advantageous to them but that are suboptimal to us;
Previous wording
•the supply or quality of our product candidates or other materials necessary, including comparator drug, to conduct clinical trials of our product candidates being insufficient, inadequate or too costly.
Current wording
•the supply or quality of our product candidates or other materials necessary, including comparator drug, to conduct clinical trials of our product candidates being insufficient, inadequate or too costly; and
Previous wording
Success in preclinical testing and early clinical trials does not ensure that later clinical trials will generate the same results or otherwise provide adequate data to demonstrate the efficacy and safety of a product candidate. Preclinical studies, Phase 1 and Phase 2a clinical trials are primarily designed to test safety, to study pharmacokinetics and pharmacodynamics, and to understand the side effects of product candidates at various doses and dosing schedules. Success in preclinical or animal studies and early clinical trials does not ensure that later large-scale efficacy trials will be successful, nor does it predict final results. Our product candidates may fail to show the desired safety, tolerability, pharmacokinetic profile, and efficacy in clinical development despite positive results in preclinical studies or having successfully advanced through initial clinical trials, particularly because our NBD1 stabilizer product candidates target the NBD1 domain of the cystic fibrosis transmembrane conductance regulator (“CFTR”) protein, a novel target which has not yet been tested in CF patients.
Current wording
Success in preclinical testing and early clinical trials does not ensure that later clinical trials will generate the same results or otherwise provide adequate data to demonstrate the efficacy and safety of a product candidate. Preclinical studies, Phase 1 and Phase 2a clinical trials are primarily designed to test safety, to study pharmacokinetics and pharmacodynamics, and to understand the side effects of product candidates at various doses and dosing schedules. Success in preclinical or animal studies and early clinical trials does not ensure that later large-scale efficacy trials will be successful, nor does it predict final results. Our product candidates may fail to show the desired safety, tolerability, pharmacokinetic profile, and efficacy in clinical development despite positive results in preclinical studies or having successfully advanced through initial clinical trials, particularly because our NBD1 stabilizer product candidates target the NBD1 domain of the cystic fibrosis transmembrane conductance regulator (“CFTR”) protein, a novel target which has not previously been tested in CF patients.
Previous wording
Similarly, from time to time, we may publish interim, topline or preliminary results from our preclinical studies and clinical trials, which are based on a preliminary analysis of then-available data. We also make assumptions, estimations, calculations and conclusions as part of our preliminary analyses of data, and we may not have received or had the opportunity to fully and carefully evaluate all data. As a result, the results and related findings and conclusions are subject to change following a more comprehensive review of the data related to the particular study or trial. Interim results from clinical trials that we may complete are subject to the risk that one or more of the clinical outcomes may materially change as patient enrollment continues and more patient data become available. Preliminary or topline results also remain subject to audit and verification procedures that may result in the final data being materially different from the preliminary data we previously published. As a result, interim, topline and preliminary data should be viewed with caution until the final data are available. Adverse differences between interim, topline or preliminary data and final data could significantly harm our business prospects and may cause the trading price of our common stock to fluctuate significantly.
Current wording
Similarly, from time to time, we may publish interim, topline or preliminary results from our preclinical studies and clinical trials, which are based on a preliminary analysis of then-available data. We make assumptions, estimations, calculations and conclusions as part of our preliminary analyses of data, and we may not have received or had the opportunity to fully and carefully evaluate all data. As a result, the results and related findings and conclusions are subject to change following a more comprehensive review of the data related to the particular study or trial. Interim results from clinical trials that we may complete are subject to the risk that one or more of the clinical outcomes may materially change as patient enrollment continues and more patient data become available. Preliminary or topline results also remain subject to audit and verification procedures that may result in the final data being materially different from the preliminary data we previously published. As a result, interim, topline and preliminary data should be viewed with caution until the final data are available. Adverse differences between interim, topline or preliminary data and final data could significantly harm our business prospects and may cause the trading price of our common stock to fluctuate significantly.
Previous wording
Targeting the NBD1 domain of the CFTR protein is novel, and we do not know whether we will be able to successfully develop any products.
Current wording
Targeting the NBD1 domain of the CFTR protein is novel, and the time, cost of development, and likelihood of successful product development is difficult to predict.
Previous wording
Our NBD1 stabilizer product candidates target the NBD1 domain of the CFTR protein, which is a novel target. Other companies have discontinued programs targeting NBD1 as they were unable to develop compounds that could successfully bind to NBD1. We intend to develop one of our NBD1 stabilizers as a combination therapy with either one of our complementary modulators, galicaftor or SION-109, or as an add-on to the standard of care. Given the novelty of our product candidates and the inherent risk in developing a combination or add-on therapy, we may not be able to successfully develop any products.
Current wording
Our NBD1 stabilizer product candidates target the NBD1 domain of the CFTR protein, which is a novel target. Other companies have discontinued programs targeting NBD1 as they were unable to develop compounds that could successfully bind to NBD1. Given the novelty of our product candidates and the inherent risk in our plans to develop a combination or add-on therapy, we may not be able to successfully develop any products.
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Rearranged current paragraphs (2)
Current report — wording carried from elsewhere
In the past, stockholders have initiated class action lawsuits against pharmaceutical and biotechnology companies following periods of volatility in the market prices of these companies’ stock. Such litigation, if instituted, could result in substantial costs and divert management’s attention and resources.
Current report — wording carried from elsewhere
In recent years, many changes to tax laws have been made and changes are likely to continue to occur in the future. Since early 2025, U.S. policy changes have been implemented at a rapid pace, and additional changes, including to tax laws, are likely. Future changes in tax laws could have a material adverse effect on our business, cash flow, financial condition or results of operations.
Rearranged previous paragraphs (6)
Previous report — wording carried elsewhere
We are early in our development efforts. Each of our product candidates will require additional preclinical and/or clinical development, regulatory approval, obtaining manufacturing supply, capacity and expertise, building a commercial organization or successfully outsourcing commercialization, substantial investment and significant marketing efforts before we generate any revenue from product sales.
Previous report — wording carried elsewhere
Furthermore, given the amount of time required for the development, testing and regulatory review of new product candidates, patents protecting such candidates might expire before or shortly after such candidates are commercialized. As a result, our owned and licensed patent portfolio may not provide us with sufficient rights to exclude others from commercializing products similar or identical to our product candidates.
Previous report — wording carried elsewhere
Various third parties practice in competitive areas and may have issued patents or patent applications that will issue as patents in the future, which could impede or preclude our ability to commercialize our product candidates. For any third-party patents that could be relevant to our product candidates, we rely in part on the “safe harbor” or research exemption under 35 U.S.C. § 271(e)(1), which exempts activities related to pursuing
Previous report — wording carried elsewhere
General legislative cost control measures may also affect reimbursement for our product candidates. The Budget Control Act, as amended, resulted in the imposition of reductions in Medicare (but not Medicaid)
Previous report — wording carried elsewhere
Even if any of our product candidates receive marketing approval, it may fail to achieve the degree of market acceptance by physicians, patients, third-party payors and others in the medical community necessary for commercial success.
Previous report — wording carried elsewhere
•general political and economic conditions; and