FENNEC PHARMACEUTICALS INC.
For the period ended Mar 31, 2026. Filed May 14, 2026.
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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.
Mar 31, 2026 · Filed May 14, 2026
FENC$9.81+4.5%Stored close · as of Nov 6, 2026
What changed in Management’s Discussion and Analysis?
Read the current filingPrevious report: 10-Q
Period ended 2025-09-30; filed 2025-11-13.
0001104659-25-111260
Item 2. Management's Discussion and Analysis of Financial Condition and Results of OperationsCurrent report: 10-Q
Period ended 2026-03-31; filed 2026-05-14.
0001104659-26-061213
Item 2. Management's Discussion and Analysis of Financial Condition and Results of OperationsThe 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 69 previous paragraphs and 57 current paragraphs.
21 unchanged; 13 reworded; 21 added; 32 removed; 3 previous and 2 current paragraphs rearranged.
Tables are not compared: 21 previous and 15 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 (21)
Current report
PEDMARK® is currently the only FDA-approved therapy indicated to reduce the risk of ototoxicity associated with cisplatin in pediatric patients one month of age and older with localized, non-metastatic solid tumors. In clinical studies in this population, treatment with PEDMARK® resulted in an approximate 50% relative reduction in the incidence of cisplatin-induced hearing loss compared to cisplatin alone, without evidence of materially compromised antitumor efficacy. PEDMARK® is administered as a short intravenous infusion and has generally been associated with a mild-to-moderate and manageable safety profile consistent with its known pharmacology.
Current report
Under the terms of the Norgine licensing agreement, Fennec received approximately $43 million in upfront consideration and may receive up to approximately $230 million in additional commercial and regulatory milestone payments and double-digit tiered royalties (up to the mid-twenties) on net sales of PEDMARQSI® in the licensed territories. To date, Fennec has not received any milestone payments. Norgine will be responsible for all commercialization activities in the licensed territories and will hold all marketing authorizations in the licensed territories.
Current report
Further, we have established Fennec HEARS®, a comprehensive single source program designed to connect PEDMARK® patients to both patient financial and product access support. The program offers assistance and resources, regardless of insurance type, that can address co-pays or lack of coverage when certain eligibility requirements are met. Fennec HEARS® also provides access to care coordinators that can answer insurance questions about coverage for PEDMARK® and provide tips and resources for managing treatment.
Current report
On March 16, 2026, we announced that we had entered into a settlement and license agreement with Cipla Limited and Cipla USA, Inc. resolving the PEDMARK® patent litigation pending in the United States District Court for the District of New Jersey. Under the terms of the agreement, the lawsuit will be dismissed with each party bearing its own costs, and Cipla will not enter the U.S. market with its generic sodium thiosulfate product until September 1, 2033, or earlier under certain specified circumstances. We believe this settlement, together with our existing patent and regulatory protections, provides additional visibility into the long-term exclusivity profile of PEDMARK® in the United States.
Current report
There can be no assurance that we do not or will not infringe on patents held by third parties or that third parties in the future will not claim that we have infringed on their patents. In the event that our product or technologies infringe or violate the patent or other proprietary rights of third parties, there is a possibility we may be prevented from pursuing product development, manufacturing or commercialization of our product until the underlying patent dispute is resolved. For example, there may be patents or patent applications held by others that contain claims that our product or operations might be determined to infringe or that may be broader than we believe them to be. Given the complexities and
Current report
uncertainties of patent laws, there can be no assurance as to the impact that future patent claims against us may have on our business, financial condition, results of operations, or prospects.
Current report
In the U.S. and Europe, Fennec estimates that there are approximately 11,400 pediatric patients with localized, non-metastatic solid tumors each year, of which include approximately 2,157 cisplatin-treated pediatric patients in the U.S. and 1,250 in Europe who fall within the current PEDMARK® market. The incidence and severity of CIO depends on the cumulative dose and duration of chemotherapy. Many affected children ultimately require hearing aids or, in more severe cases, cochlear implants, which are costly, technically complex and do not fully restore normal hearing. PEDMARK® is the first and only therapy approved in the U.S. to reduce the risk of ototoxicity associated with cisplatin in pediatric patients one month of age and older with localized, non-metastatic solid tumors. Infants and young children who experience ototoxicity during critical developmental windows are at risk for impaired speech and language development and literacy, while older children and adolescents may face long-term challenges in academic performance, social-emotional development, career potential and independent living.
Current report
CIO and Unmet Medical Need
Current report
Cisplatin is a cornerstone of modern cancer therapy for many pediatric and AYA solid tumors, with reported overall survival rates in some cisplatin-treated cancers exceeding 80%. However, cisplatin is associated with a high incidence of ototoxicity. Published data indicates that approximately 60% to 90% of cisplatin-treated patients may develop some degree of permanent, sensorineural hearing loss, with reported rates of 40% to 80% occurring in adults and 50% to 90% in children. CIO typically begins as bilateral, high-frequency hearing loss that is progressive and irreversible, occasionally accompanied by tinnitus. In some cases, it may ultimately require the use of hearing aids or cochlear implants.
Current report
Published literature has linked treatment-related hearing loss to impairments in speech and language development, reduced academic performance, challenges in social-emotional development, and enduring impacts on educational attainment, vocational opportunities, and independent living. Additionally, published research indicates that severe to profound early-onset hearing loss can impose a substantial lifetime economic burden, with per-individual costs estimated at approximately $489 and potentially exceeding $1,000 on an undiscounted basis, primarily due to lost productivity, educational expenses, and medical costs. These figures are derived from published literature regarding the disease burden of hearing loss and do not represent demonstrated health-economic outcomes specifically attributable to PEDMARK®.
Current report
Under the terms of the licensing agreement, Fennec received approximately $43 million in upfront consideration and may receive up to approximately $230 million in additional commercial and regulatory milestone payments and double-digit tiered royalties on net sales of PEDMARQSI® in the licensed territories up to the mid-twenties. To date, Fennec has not received any milestone payments. Norgine will be responsible for all commercialization activities in the licensed territories and will hold all marketing authorizations in the licensed territories.
Current report
Most recently, in 2025, Norgine launched PEDMARQSI® in Germany and the U.K with plans to launch in several additional markets in 2026.
Current report
Japan: STS-J01 Investigator-Initiated Trial and Registration Plans
Current report
In Japan, an independent investigator-initiated clinical trial, known as STS-J01, has been evaluating PEDMARK® for the prevention of CIO. In December 2025, we announced positive topline results from this trial that demonstrated use of PEDMARK® was associated with a significant reduction in the incidence of hearing loss compared to historically reported rates in patients receiving cisplatin alone, with no evidence of reduced antitumor activity and an approximate 95% clinical response rate. Based on these results, we are pursuing a regulatory registration strategy for PEDMARK® in Japan and are evaluating partnering or licensing opportunities in that market, similar to our model with Norgine in Europe. Discussions with potential partners and regulators are ongoing.
Current report
Investigator-Initiated Studies and Lifecycle Management
Current report
In addition to our pivotal pediatric studies (SIOPEL6 and COG ACCL0431), we support a number of investigator-initiated and other clinical studies designed to further characterize the use of PEDMARK® in additional tumor types and patient populations. For example, City of Hope, a U.S. cancer research and treatment organization, is conducting an investigator-
Current report
initiated clinical trial evaluating PEDMARK® in adult men with stage II–III metastatic testicular germ cell tumors receiving cisplatin-based chemotherapy. We also engage in medical affairs activities and data-generation initiatives to expand the clinical evidence base for PEDMARK®, including in AYA and adult populations. In 2026, additional investigator-sponsored studies were initiated, including a real-world study at Tampa General Hospital Cancer Institute and a Phase I/II trial at the University of Arizona Cancer Center to evaluate PEDMARK® in AYA and adult patients receiving cisplatin-based chemotherapy. These studies are exploratory in nature, and PEDMARK® is not currently approved for use in metastatic cancers or adult populations outside of its labeled indication. Any potential label expansion will require additional clinical data and regulatory approvals.
Current report
Further, in April 2026, we announced that four abstracts evaluating PEDMARK® (sodium thiosulfate injection) were accepted as part of the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting program, taking place May 29-June 2, 2026 in Chicago, IL.
Current report
Net cash provided by financing activities was $1,012 in 2026 versus $359 in 2025, driven mainly by higher proceeds from stock option exercises.
Current report
The preparation of our condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, as well as related disclosures of contingent assets and liabilities. Actual results could differ from those estimates and such differences may be material to the financial statements in future periods.
Current report
There have been no material changes to our critical accounting policies and estimates from those described in our Annual Report on Form 10-K for the year ended December 31, 2025, which include, among others, revenue recognition (including variable consideration and contract liabilities), valuation of accounts receivable and related allowances, inventory valuation, stock-based compensation, and income taxes. A detailed description of these policies is included in Note 2, “Significant Accounting Policies,” to our audited consolidated financial statements in that Form 10-K and in Note 2 to the condensed consolidated financial statements included in this Quarterly Report on Form 10-Q.
Removed paragraphs (32)
Previous report
In June 2023, we received European Commission Marketing Authorization for PEDMARQSI® (known as PEDMARK® in the U.S.) Further, the decision included the receipt of a PUMA in the EU with up to 8 years of data exclusivity plus 2 years of market protection. In March 2024, the Company announced an exclusive licensing agreement with Norgine, which will commercialize PEDMARQSI® in Europe, Australia and New Zealand. The licensing agreement provided us with approximately $43,200 up front and may provide us with up to approximately $230,000 in milestone and royalty payments in the future. Norgine announced the launch of Germany and the U.K. in early 2025.
Previous report
In the U.S. and Europe, it is estimated that more than 10,000 pediatric patients may receive platinum-based chemotherapy on an annual basis. The incidence of ototoxicity depends upon the dose and duration of chemotherapy, and many of these children require lifelong hearing aids. PEDMARK® is the first and only therapy approved to mitigate the risk of ototoxicity associated with cisplatin, a form of platinum based chemotherapy, in pediatric patients aged one month and older with localized, non-metastatic solid tumors. Beyond the use of PEDMARK®, only expensive, technically difficult, and sub-optimal cochlear (inner ear) implants have been shown to provide some benefit. Infants and young children that suffer ototoxicity at critical stages of development lack speech language development and literacy, and older children and adolescents lack social-emotional development and educational achievement.
Previous report
The U.S. Adolescent and Young Adult (AYA) oncology landscape is shaped by a combination of academic and community centers across the nation. Academic institutions play a critical role in establishing the treatment framework, with 72 NCI-designated academic centers treating approximately 20% of AYA oncology patients. In contrast, around 80% of patients are treated at 3,750 community centers throughout the country.
Previous report
Cisplatin Induced Ototoxicity (“CIO”)
Previous report
Cisplatin and other platinum compounds are essential chemotherapeutic agents for the treatment of many pediatric and adult malignancies. Unfortunately, platinum-based therapies can cause ototoxicity, or hearing loss, which is permanent, irreversible, and particularly harmful to the survivors of pediatric cancer.
Previous report
The incidence of ototoxicity depends upon the dose and duration of chemotherapy, and many of these patients require lifelong hearing aids or cochlear implants, which can be helpful for some, but do not reverse the hearing loss and can be costly over time. Infants and young children that are affected by ototoxicity at critical stages of development lack speech and language development and literacy, and older children and adolescents often lack social-emotional development and educational achievement.
Previous report
It is estimated that greater than 50% of pediatric patients may suffer permanent hearing loss as a result of CIO and approximately 40-80% of adult patients may suffer permanent hearing loss as a result of CIO.
Previous report
In early 2025, Norgine announced the launch of PEDMARQSI® in Germany and the U.K.
Previous report
Tariffs and One Big Beautiful Bill Act
Previous report
In addition, the U.S. and other countries have recently imposed, and may continue to impose, new tariffs. While pharmaceuticals are largely exempt from the recently imposed U.S. tariffs, such exemptions may be terminated or may not apply to any future tariffs. Additionally, pharmaceuticals are not exempt from certain tariffs recently imposed outside of the U.S. We continue to evaluate the impacts of tariffs on our business and results of operations. Based on current information, we do not believe the impact of tariffs on our business, financial condition or results of operations will be material.
Previous report
In July 2025, the One Big Beautiful Bill Act (“OBBBA”) was enacted in the U.S. The OBBBA includes significant provisions, such as the permanent extension of certain expiring provisions of the Tax Cuts and Jobs Act, modifications to the international tax framework and the restoration of favorable tax treatment for certain business provisions. The legislation has multiple effective dates, with certain provisions effective in 2025 and others implemented through 2027. The Company is currently evaluating the impact of the OBBBA on the Company’s consolidated condensed financial statements and related disclosures
Previous report
Nine months ended September 30, 2025, versus nine months ended September 30, 2024:
Previous report
A summary of our critical accounting policies and use of estimates are presented in Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operation” of our Annual Report. There have been no material changes to our critical accounting policies and use of estimates during the nine months ended September 30, 2025.
Previous report
Credit Losses
Previous report
The Company estimates and records a provision for its expected credit losses related to its trade receivables. The Company considers historical collection rates, the current financial status of its customers, macroeconomic factors, and other industry-specific factors when evaluating for current expected credit losses. Forward-looking information is also considered in the evaluation of current expected credit losses. However, because of the short time to the expected receipt of accounts receivable, the Company believes that the carrying value, net of excepted losses, approximates fair value and therefore, relies more on historical and current analysis of its trade receivables.
Previous report
To determine the provision for credit losses for accounts receivable, the Company has disaggregated its accounts receivable by class of customer, as the Company determined that risk profile of its customers is consistent based on the life sciences industry. Each class of customer component is analyzed for estimated credit losses individually. In doing so, the Company establishes a customer profile, based on the previous collections of accounts receivable by the age of such receivables, and evaluates the current and forecasted financial position of its customers, as available. Further, the Company considers macroeconomic factors and the status of the life sciences industry to estimate if there are current expected credit losses within its trade receivables based on the trends and the Company’s expectation of the future status of such economic and industry-specific factors. Also, specific allowance amounts are established based on review of outstanding invoices to record the appropriate provision for customers that have a higher probability of default.
Previous report
Revenue Recognition
Previous report
Under Accounting Standards Codification (“ASC”) 606, Revenue from Contracts with Customers, we recognizes revenue when our customers obtain control of promised goods or services, in an amount that reflects the consideration which we determine we expect to receive in exchange for those goods or services. To determine revenue recognition for arrangements that we determine are within the scope of ASC 606, we perform the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligation(s) in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligation(s) in the contract; and (v) recognize revenue when (or as) we satisfy our performance obligation(s). As part of the accounting for these arrangements, we must make significant judgments, including identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each performance obligation.
Previous report
License Agreements
Previous report
The Company generates revenue from license or similar agreements with pharmaceutical companies for the commercialization of its product. Such agreements may include the transfer of intellectual property rights in the form of licenses. Payments made by the customers may include non-refundable upfront fees, payments based upon the achievement of defined milestones, and royalties on sales of product.
Previous report
If a license to the Company's intellectual property is determined to be distinct from the other performance obligations identified in the arrangement, the Company recognizes the transaction price allocated to the license as revenue upon transfer of control of the license. All other promised goods or services in the agreement are evaluated to determine if they are distinct. If they are not distinct, they are combined with other promised goods or services to create a bundle of promised goods or services that is distinct. Optional future services where any additional consideration paid to the Company reflects their standalone selling prices do not provide the customer with a material right and, therefore, are not considered performance obligations. If optional future services are priced in a manner which provides the customer with a significant or incremental discount, they are material rights, and are accounted for as separate performance obligations.
Previous report
Contingent milestones at contract inception are estimated at the amount which is not probable of a material reversal and included in the transaction price using the most likely amount method. Milestone payments that are not within the Company's control, such as regulatory approvals, are not considered probable of being achieved until those approvals are received and therefore the variable consideration is constrained. The transaction price is then allocated to each performance obligation on a relative stand-alone selling price basis, for which the Company recognizes revenue as or when the performance obligations under the contract are satisfied. At the end of each reporting period, the Company re-evaluates the probability of achieving development or sales-based milestone payments that may not be subject to a material reversal
Previous report
and, if necessary, adjust the estimate of the overall transaction price. Any such adjustments are recorded on a cumulative catch-up basis, which would affect license and other revenue, as well as earnings, in the period of adjustment.
Previous report
For arrangements that include sales-based royalties, including sales-based milestone payments, and a license of intellectual property that is deemed to be the predominant item to which the royalties relate, revenue is recognized at the later of when the related sales occur or when the performance obligation to which some or all of the royalties have been allocated has been satisfied (or partially satisfied).
Previous report
Stock-based Compensation
Previous report
The calculation of the fair values of our stock-based compensation plans requires estimates that require management’s judgments. Under ASC 718, the fair value of each stock option is estimated on the grant date using the Black-Scholes option-pricing model. The valuation models require assumptions and estimates to determine expected volatility, expected life, expected dividends and expected risk-free interest rates. The expected volatility was determined using historical volatility of our stock based on the contractual life of the award. The risk-free interest rate assumption was based on the yield on zero-coupon U.S. Treasury strips at the award grant date. We also used historical data to estimate forfeiture experience. In valuing options granted in the periods ended September 30, 2025, we used the following weighted average assumptions:
Previous report
Performance-Based Units
Previous report
In May and August 2025, the Board of Directors approved PSU grants whereby vesting depends on certain revenue performance milestones over the next year. The Company estimates the likelihood of achievement of performance milestones for all PSU awards at the end of each reporting period. To the extent those awards or portions thereof are considered probable of being achieved, such awards or portions thereof are expensed over the performance period. As of September 30, 2025, the Company deems the achievement of the performance milestones to be probable.
Previous report
Common shares and warrants
Previous report
Common shares are recorded as the net proceeds received on issuance after deducting all share issuance costs and the relative fair value of investor warrants. Warrants are recorded at relative fair value and are deducted from the proceeds of common shares and recorded on the consolidated statements of shareholders’ equity (deficit) as additional paid-in capital.
Previous report
Newly Adopted and Recent Accounting Pronouncements
Previous report
Refer to Note 2, “Significant Accounting Policies - Recent Accounting Pronouncements” to our condensed financial statements included elsewhere in this Quarterly Report on Form 10-Q for more information.
Reworded paragraphs (13)
Previous wording
The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the SEC on March 26, 2025 (the “Annual Report”) and our unaudited interim condensed consolidated financial statements and related notes appearing in this Quarterly Report on Form 10-Q (the “Quarterly Report”). Some of the information contained in this discussion and analysis or set forth elsewhere in this Quarterly Report, including information with respect to our plans and strategy for our business, includes forward looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995, that involve risks and uncertainties. Forward-looking statements provide current expectations of future events based on certain assumptions and include any statement that does not directly relate to any historical or current fact. Forward-looking statements can be identified by words such as “future,” “anticipates,” “believes,” “estimates,” “expects,” “intends,” “plans,” “predicts,” “will,” “would,” “could,” “can,” “may,” and similar terms. Forward-looking statements are not guarantees of future performance and our actual results may differ significantly from the results discussed in the forward-looking statements. As a result of many factors, including those factors set forth in Part I, Item 1A of the Annual Report under the heading “Risk Factors”, our actual results could differ materially from the results described in, or implied by, the forward-looking statements contained in the following discussion and analysis.
Current wording
The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our Annual Report on Form 10-K for the fiscal year ended December 31, 2025, filed with the SEC on March 27, 2026 (the “Annual Report”) and our unaudited interim condensed consolidated financial statements and related notes appearing in this Quarterly Report on Form 10-Q (the “Quarterly Report”). Some of the information contained in this discussion and analysis or set forth elsewhere in this Quarterly Report, including information with respect to the Company’s plans and strategy for its business, includes forward looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995, that involve risks and uncertainties. Forward-looking statements provide current expectations of future events based on certain assumptions and include any statement that does not directly relate to any historical or current fact. Forward-looking statements can be identified by words such as “future,” “anticipates,” “believes,” “estimates,” “expects,” “intends,” “plans,” “predicts,” “will,” “would,” “could,” “can,” “may,” and similar terms. Forward-looking statements are not guarantees of future performance and our actual results may differ significantly from the results discussed in the forward-looking statements. As a result of many factors, including those factors set forth in Part I, Item 1A of the Annual Report under the heading “Risk Factors”, our actual results could differ materially from the results described in, or implied by, the forward-looking statements contained in the following discussion and analysis.
Previous wording
The following discussion should be read in conjunction with our Annual Report and the condensed consolidated financial statements andaccompanying notes included elsewhere in this report.
Current wording
The following discussion should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2025, and the condensed consolidated financial statements andaccompanying notes included elsewhere in this report.
Previous wording
We are a commercial-stage biopharmaceutical company focused on our only product PEDMARK®. On September 20, 2022, we received approval from the FDA for PEDMARK® (sodium thiosulfate injection) to reduce the risk of ototoxicity associated with cisplatin in pediatric patients one month of age and older with localized, non-metastatic solid tumors. This
Current wording
Fennec Pharmaceuticals Inc., a corporation existing under the laws of British Columbia, was originally formed under the name Adherex Technologies Inc. and subsequently changed its name on September 3, 2014. Fennec is a commercial stage specialty pharmaceutical company dedicated to preventing cisplatin-induced ototoxicity (“CIO”), a serious and often irreversible side effect of cancer treatment, with one FDA approved and European Commission approved product, PEDMARK® in the U.S. and PEDMARQSI®, which is the branded name for PEDMARK® outside of the U.S. (collectively, “PEDMARK”), developed to reduce the risk of ototoxicity associated with cisplatin in pediatric patients one month of age and older with localized, non-metastatic solid tumors. The Company has four wholly owned subsidiaries: Oxiquant, Inc. and Fennec Pharmaceuticals, Inc., both Delaware corporations, Cadherin Biomedical Inc., a Canadian corporation, and Fennec Pharmaceuticals (EU) Limited, an Ireland company (“Fennec Limited”). With the exception of Fennec Pharmaceuticals, Inc., all subsidiaries are inactive. On September 20, 2022, we received approval from the FDA for PEDMARK® (sodium thiosulfate injection). This approval makes PEDMARK® the first and only treatment approved by the FDA in this area of significant unmet medical need. On October 17, 2022, we announced commercial availability of PEDMARK® in the United States. Further, PEDMARQSI® received European Commission Marketing Authorization in June 2023 and received U.K. approval in October 2023.
Previous wording
In the U.S., we sell PEDMARK® through an experienced field force. Further, the Company utilizes medical science liaisons who are helping to educate the medical communities and patients about cisplatin induced ototoxicity and our programs supporting patient access to PEDMARK®.
Current wording
In the United States, we sell our product through an experienced field force including Territory Managers and we utilize medical science liaisons within our medical team who help educate the medical communities and patients about CIO and our programs supporting patient access to PEDMARK®.
Previous wording
We received Orphan Drug Exclusivity for PEDMARK® in January 2023, which provides seven years of market exclusivity from its FDA approval on September 20, 2022, until September 20, 2029. We currently have six patents listed for PEDMARK® in the FDA Orange Book. In September 2022, the USPTO issued Patent No. 11,291,728 (the “US ‘728 Patent”), in December 2022, the USPTO issued Patent No. 11,510,984 (“US ‘984 Patent”) and in April 2023, the USPTO issued Patent No. 11,671,793 (“US ‘793 Patent”) that covers PEDMARK® pharmaceutical formulation. Further, additional issued patents included US 11,964,018 Patent (the “’US ‘018 Patent) and US 11,992,530 Patent (the “US ’530 Patent”) and US 11,998,604 Patent (the “US ’604 Patent”) covering methods of using our PEDMARK® product to reduce ototoxicity in a patient receiving a platinum based chemotherapeutic for the treatment of a cancer. The US ‘728, US ‘984 US ‘793, US ‘018, US’530 and US ’604 patents will expire in 2039. We are also pursuing additional patent applications in both the U.S. and internationally for PEDMARK®. Additionally, on May 27, 2025, we were granted US 12,311,026 (the “US ‘026 Patent”) covering a method of using pharmaceutical compositions comprising sodium thiosulfate and specific stabilizers to reduce ototoxicity in a patient receiving a platinum based chemotherapeutic for the treatment of a cancer. The US ‘026 Patent has an expiration date of July 2039.
Current wording
We received Orphan Drug Exclusivity for PEDMARK® in January 2023, which provides seven years of market exclusivity from its FDA approval on September 20, 2022, until September 20, 2029. We currently have six patents listed for PEDMARK® in the FDA’s Approved Drug Products with Therapeutic Equivalence Evaluations (“FDA Orange Book”). In September 2022, the United States Patent and Trademark Office (“USPTO”) issued Patent No. 11,291,728 (the “US ‘728 Patent”), in December 2022, the USPTO issued Patent No. 11,510,984 (“US ‘984 Patent”) and in April 2023, the USPTO issued Patent No. 11,671,793 (“US ‘793 Patent”) that covers PEDMARK® pharmaceutical formulation. Further, additional issued patents included US 11,964,018 Patent (the “US ‘018 Patent) and US 11,992,530 Patent (the “US ‘530 Patent”) and US 11,998,604 Patent (the “US ‘604 Patent”) covering methods of using our PEDMARK® product to reduce ototoxicity in a patient receiving a platinum based chemotherapeutic for the treatment of a cancer. The US ‘728, US ‘984, US ‘793, US ‘018, US ‘530, and US ‘604 Patents will expire in 2039. Additional patents covering PEDMARK® formulation have been granted in Australia, Canada, the European Patent Office (EPO) (described further below), Hong Kong, Indonesia, Japan, Korea, Malaysia, Mexico, and Russia, and patent applications covering PEDMARK® are pending in Brazil, China, the European Patent Office (EPO), Hong Kong, Israel, Korea, Mexico, New Zealand, Singapore, and Thailand. Patents covering alternative sodium thiosulfate formulations have been granted in the United States (US 12,311,026 (the “US ‘026 Patent”), Canada, Korea, Mexico, and Russia, and patent applications covering alternative sodium thiosulfate formulations are pending in the United States, Australia, the EPO, Hong Kong, Indonesia, Japan, Malaysia, Mexico, and New Zealand. Applications from these patent families, where granted, valid, and enforceable, will expire in July 2039, exclusive of any patent term adjustment or extension.
Previous wording
In the United States, PEDMARK® is the first and only therapy approved to mitigate the risk of ototoxicity associated with cisplatin in pediatric patients aged one month and older with localized, non-metastatic solid tumors. Further, the National Comprehensive Cancer Network (NCCN) recommend the use of PEDMARK® to reduce the risk of cisplatin-induced ototoxicity in patients with localized, non-metastatic solid tumors (category 2A) for Adolescent and Young Adult (AYA) Oncology. As of January 2025, all medical compendia have incorporated Fennec’s clinical updates, and AHFS, the largest online platform for pharmacists, has updated its content to reflect and differentiate PEDMARK® in accordance with its labeling.
Current wording
In the United States, PEDMARK® is the first and only therapy approved to mitigate the risk of ototoxicity associated with cisplatin in pediatric patients aged one month and older with localized, non-metastatic solid tumors. Further, the National Comprehensive Cancer Network (NCCN) recommended the use of PEDMARK® to reduce the risk of cisplatin-induced ototoxicity in patients with localized, non-metastatic solid tumors (category 2A) for Adolescent and Young Adult (AYA) Oncology. As of January 2025, all medical compendia have incorporated Fennec’s clinical updates, and AHFS, the largest online platform for pharmacists, has updated its content to reflect and differentiate PEDMARK® in accordance with its labeling.
Previous wording
PEDMARK® is the first and only FDA- and EMA-approved agent designed to reduce the risk of cisplatin-induced hearing loss (CIO) in children with localized solid tumors. The strategic imperatives driving the execution of PEDMARK®’s strategy include increasing awareness of unmet patient needs and emphasizing the importance of preventing CIO among oncologists. A key goal is to establish PEDMARK® as the standard of care (SOC) for all CIO prevention. Additionally, efforts focus on expanding adoption beyond oncologists by ensuring healthcare providers (HCPs) gain confidence in and have positive experiences with PEDMARK®. Ensuring seamless access for advocacy groups, payers, and providers is also a priority, along with activating patients and caregivers through disease education to drive demand for PEDMARK®. Key activities supporting these objectives include an expanded sales team with a strong track record in both academic and
Current wording
PEDMARK® is the first and only FDA- and EMA-approved agent designed to reduce the risk of CIO in pediatric patients with localized solid tumors. The strategic imperatives driving the execution of PEDMARK®’s strategy include increasing awareness of unmet patient needs and emphasizing the importance of preventing CIO among oncologists. A key goal is to establish PEDMARK® as the standard of care (SOC) for all CIO prevention. Additionally, efforts focus on expanding adoption beyond oncologists by ensuring healthcare providers (HCPs) gain confidence in and have positive experiences with PEDMARK®. Ensuring seamless access for advocacy groups, payers, and providers is also a priority, along with activating patients and caregivers through disease education to drive demand for PEDMARK®. Key activities supporting these objectives include an expanded sales team with a strong track record in both academic and community settings, partnerships with group purchasing organizations, and specialty pharmacy offerings such as home infusions, white bag delivery, and direct billing. Furthermore, digital materials, a digital speaker bureau to engage pediatric oncologists, audiologists, nurses, and pharmacists, along with a patient access services hub and ongoing support from advocacy groups, are all integral components of the strategy.
Previous wording
The U.S. pediatric oncology landscape includes approximately 200 targeted pediatric hospital centers, such as those within the Children's Oncology Group (COG), National Cancer Institute (NCI), and National Comprehensive Cancer Network (NCCN) institutions. Around 80% of pediatric cancer patients receive treatment at these key centers.
Current wording
In the U.S., approximately 90% of pediatric cancer patients receive care at approximately 200 key pediatric hospital centers, including institutions within the Children’s Oncology Group (COG), National Cancer Institute (NCI) and National Comprehensive Cancer Network (NCCN).
Previous wording
The Adolescent and Young Adult (AYA) oncology patient is defined as an individual between the ages of 15 and 39 at the time of initial cancer diagnosis. In the U.S., Fennec estimates that approximately 20,000 cisplatin chemotherapy patients are treated annually with the primary tumor types of thyroid cancer, breast cancer, germ cell cancer and testicular cancer.
Current wording
The Adolescent and Young Adult (“AYA”) oncology patient is defined as an individual between 15 and 39 years of age at the time of initial cancer diagnosis. In the U.S., Fennec estimates that there are approximately 51,282 new AYA solid tumor cases annually, of which approximately 25,536 involve cisplatin-treated patients with localized, non-metastatic solid tumors. The most common relevant tumor types include germ cell tumors, testicular cancer, thyroid cancer and breast cancer. The U.S. AYA oncology treatment landscape spans both academic and community settings, with 72 NCI-designated academic centers treating roughly 20% of AYA oncology patients, while approximately 80% are managed across approximately 3,750 community oncology centers nationwide.
Previous wording
The following table illustrates a summary of cash flows data for the nine-month periods of September 30, 2025 and 2024:
Current wording
The following table illustrates a summary of cash flows data for the three-month periods of March 31, 2026 and 2025:
Previous wording
The net cash used in operating activities for the nine-month period ended September 30, 2025 was approximately $6,511 as compared to $28,454 net cash provided by operating activities during the same period in 2024. There was an increase in net loss of $6,108 in the nine-month period ended September 30, 2025, as compared to the same period in 2024. The comparable decrease in net cash flow is primarily a result of the proceeds received from the Norgine transaction during 2024 of approximately $43,200.
Current wording
The net cash provided by operating activities for the three-month period ended March 31, 2026 was approximately $2,379 as compared to $4,318 net cash used in operating activities during the same period in 2025. The year-over-year improvement was primarily driven by the shift from a net loss of $1,165 to net income of $201 and a favorable swing in working capital, including a significant decrease in accounts receivable in 2026 versus a build-up of receivables in 2025.
Previous wording
We continue to pursue various strategic alternatives including collaborations with other pharmaceutical and biotechnology companies. Our projections of further capital requirements are subject to substantial uncertainty. Our working capital requirements may fluctuate in future periods depending upon numerous factors, including: our ability to obtain additional financial resources; our ability to enter into collaborations that provide us with up-front payments, milestones or other payments; progress or lack of progress in our preclinical studies or clinical trials; unfavorable toxicology in our clinical programs; our drug substance requirements to support clinical programs; change in the focus, direction, or costs of our research and development programs; headcount expense; the costs involved in preparing, filing, prosecuting, maintaining, defending and enforcing our patent claims; competitive and technological advances; the potential need to develop, acquire or license new technologies and products; our business development activities; new regulatory requirements implemented
Current wording
We continue to pursue various strategic alternatives including collaborations with other pharmaceutical and biotechnology companies. Our projections of further capital requirements are subject to substantial uncertainty. Our working capital requirements may fluctuate in future periods depending upon numerous factors, including: our ability to obtain additional financial resources; our ability to enter into collaborations that provide us with up-front payments, milestones or other payments; results of our research and development activities; progress or lack of progress in our preclinical studies or clinical trials; unfavorable toxicology in our clinical programs, our drug substance requirements to support clinical programs; change in the focus, direction, or costs of our research and development programs; headcount expense; the costs involved in preparing, filing, prosecuting, maintaining, defending and enforcing our patent claims; competitive and technological advances; the potential need to develop, acquire or license new technologies and products; our business development activities; new regulatory requirements implemented by regulatory authorities; the timing and outcome of any regulatory review process; and commercialization activities, if any.
Previous wording
We invest excess cash and cash equivalents in high credit quality investments held by financial institutions in accordance with our investment policy designed to protect the principal investment. At September 30, 2025, we had approximately $1,660 in our cash accounts and $20,288 in savings and money market accounts. While we have never experienced any loss or write down of our money market investments since our inception, the amounts we hold in money market accounts are substantially above the $250 amount insured by the FDIC and may lose value.
Current wording
We invest excess cash and cash equivalents in high credit quality investments held by financial institutions in accordance with our investment policy designed to protect the principal investment. As of March 31, 2026, we had approximately $3,553 in our cash accounts and $36,626 in savings and money market accounts. While we have never experienced any loss or write down of our money market investments since our inception, the amounts we hold in money market accounts are substantially above the $250 amount insured by the FDIC and may lose value.
Rearranged current paragraphs (2)
Current report — wording carried from elsewhere
In March 2024, we announced that we entered into an agreement with Norgine, a leading European specialist pharmaceutical company. This is an exclusive licensing agreement under which Norgine will commercialize
Current report — wording carried from elsewhere
PEDMARQSI® in Europe, Australia and New Zealand. PEDMARQSI®is the first and only approved therapy in the EU and U.K. for the prevention of ototoxicity (hearing loss) induced by cisplatin chemotherapy in patients one month to eighteen years of age with localized, non-metastatic solid tumors. During 2025, Norgine made PEDMARQSI® commercially available and expects additional launches to occur in 2026 and beyond.
Rearranged previous paragraphs (3)
Previous report — wording carried elsewhere
approval makes PEDMARK® the first and only treatment approved by the FDA in this area of unmet medical need. On October 17, 2022, we announced commercial availability of PEDMARK® in the U.S. In addition, in January 2023, PEDMARK® was included in the National Comprehensive Cancer Network (“NCCN”) clinical practice guidelines for Adolescent and Young Adult (“AYA”) Oncology with a category 2A recommendation.
Previous report — wording carried elsewhere
community settings, partnerships with group purchasing organizations, and specialty pharmacy offerings such as home infusions, white bag delivery, and direct billing. Furthermore, digital materials, a digital speaker bureau to engage pediatric oncologists, audiologists, nurses, and pharmacists, along with a patient access services hub and ongoing support from advocacy groups, are all integral components of the strategy.
Previous report — wording carried elsewhere
by regulatory authorities; the timing and outcome of any regulatory review process; and commercialization activities, if any.