Skip to main content

Trevi Therapeutics, Inc.

For the period ended Dec 31, 2025. Filed Mar 17, 2026.

View on SEC.gov

About this filing

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

FY2025 · Filed Mar 17, 2026

TRVI$14.33+11.9%Stored close · as of Nov 6, 2026

What changed in Management’s Discussion and Analysis?

Read the current filing

Previous report: 10-K

Period ended 2024-12-31; filed 2025-03-18.

0000950170-25-041194

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

Current report: 10-K

Period ended 2025-12-31; filed 2026-03-17.

0001193125-26-110783

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

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

Compared 93 previous paragraphs and 94 current paragraphs.

50 unchanged; 26 reworded; 17 added; 17 removed; 0 previous and 1 current paragraphs rearranged.

Tables are not compared: 3 previous and 3 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 (17)

Current report

IPF-related chronic cough Program. We are developing Haduvio for the treatment of IPF-related chronic cough, which is a progressive fibrosing interstitial lung disease associated with high mortality rates.

Current report

In June 2025, we announced positive topline results from our Phase 2b CORAL trial, which was a dose-ranging study evaluating the efficacy, safety and tolerability of Haduvio for IPF-related chronic cough. The Phase 2b CORAL trial was a randomized, double-blind, placebo-controlled, parallel-arm design that evaluated three different dose groups of Haduvio (108 mg BID, 54 mg BID and 27 mg BID) as compared to placebo. The primary efficacy endpoint for the trial was the relative change in 24-hour cough frequency (coughs per hour) for the modified intent-to-treat, or mITT, population at the end of Week 6 versus Baseline for Haduvio compared to placebo, as measured via an objective cough monitor. The mITT population consists of all randomized patients who received at least one dose of study drug or placebo (n=165). The primary efficacy endpoint in the Phase 2b CORAL trial was achieved, demonstrating statistically significant reductions in 24-hour cough frequency across all dose groups at Week 6. The 108 mg BID, 54 mg BID and 27 mg BID dose groups achieved statistically significant reductions from Baseline of 60.2% (p<0.0001), 53.4% (p<0.0001), and 47.9% (p<0.01), respectively, compared to a placebo reduction from Baseline of 16.9%.

Current report

We have completed an End-of-Phase 2 meeting with the FDA. At the meeting, we gained overall alignment on the plan for the remaining clinical studies to potentially support an NDA submission for nalbuphine ER, including two pivotal Phase 3 clinical trials and agreement on the remaining Phase 1 clinical studies. The Phase 3 trials will run in parallel, and we remain on track to initiate the first Phase 3 trial in the second quarter of 2026 and the second Phase 3 trial in the second half of 2026. The first of the two Phase 3 trials is planned to enroll approximately 300 patients and have 52 weeks of fixed dosing with nalbuphine ER 54 mg twice-a-day (BID), with the primary endpoint at 24 weeks of fixed dosing. The second Phase 3 trial is planned to enroll approximately 130 patients and have 12 weeks of fixed dosing with nalbuphine ER 54 mg BID. The primary efficacy endpoint for both trials will be the relative change from Baseline in 24-hour cough frequency (coughs per hour), as determined by an objective cough monitor, for nalbuphine ER compared with placebo. These trial designs are subject to final review of the protocols by the FDA.

Current report

Non-IPF ILD-related Chronic Cough Program. We also plan to develop Haduvio for the treatment of non-IPF ILD-related chronic cough. We plan to initiate an adaptive design Phase 2b clinical trial for the treatment of patients with non-IPF ILD-related chronic cough in the second half of 2026, subject to review of the protocol for the trial by the FDA.

Current report

RCC Program. We are developing Haduvio for the treatment of RCC, which affects approximately 2-3 million adults in the U.S. and is related to biological changes in the central and peripheral nervous systems that lower the threshold of the cough reflex. It is highly disruptive and accompanied by a wide range of complications, ranging from urinary incontinence in females to sleep disruption and social embarrassment that causes significant social and economic burden for patients and those around them.

Current report

We expect to initiate a Phase 2b trial of Haduvio for the treatment of patients with RCC in the second quarter of 2026, which we are planning to conduct in the United Kingdom, Canada, and possibly other European countries. The trial is subject to final review of the protocol by regulatory authorities.

Current report

Other NDA Supportive Studies. We also plan to continue to progress and advance NDA supportive studies necessary for regulatory approval, including Phase 1 clinical studies such as completing our respiratory safety study, and conducting drug-drug interaction, food effect, and hepatic and renal impairment studies.

Current report

General and administrative expenses for the year ended December 31, 2025 increased to $15.9 million from $12.1 million for the corresponding period in 2024, primarily due to an increase in outside services and professional fees, personnel related expenses and stock-based compensation. The increased outside services and professional fees were primarily due to increased costs as we continue to prepare for compliance with SOX 404(b). The increased personnel related expenses and stock-based compensation were primarily due to severance costs along with increased headcount.

Current report

On June 5, 2025, we issued and sold 17,400,000 shares of our common stock to the public in an underwritten offering, or the June 2025 Offering, at an offering price of $5.75 per share of common stock pursuant to an underwriting agreement with Morgan Stanley & Co. LLC, Leerink Partners LLC, Stifel, Nicolaus & Company, Incorporated and Cantor Fitzgerald & Co., as representatives of the several underwriters. In connection with the offering, we also granted the underwriters a 30-day option to purchase up to an additional 2,610,000 shares of common stock at the price to the public, less underwriting discounts and commissions. The underwriters option was exercised in full and settled in cash, concurrent with the offering. The June 2025 Offering resulted in aggregate gross proceeds to us of approximately $115.1 million.

Current report

During the year ended December 31, 2025, net cash provided by financing activities was $121.0 million, primarily consisting of cash proceeds of $108.2 million, net of commissions from sales of our common stock in our June 2025 Offering, $10.8 million from the exercise of warrants, $2.1 million from the exercise of stock options and $0.7 million from the disgorgement of short swing profits from a beneficial owner of our common stock, partially offset by $0.8 million in payments of offering costs related to the June 2025 and December 2024 Offerings.

Current report

our planned Phase 3 trials and any additional trials of Haduvio for the treatment of IPF-related chronic cough;

Current report

our planned adaptive design Phase 2b clinical trial and any additional trials of Haduvio for the treatment of non-IPF ILD-related chronic cough;

Current report

our planned Phase 2b clinical trial and any additional trials of Haduvio for the treatment of patients with RCC;

Current report

if we determine to conduct additional clinical trials of Haduvio for other indications; and

Current report

if we acquire or in-license rights to or develop other potential product candidates or technologies and seek regulatory and marketing approvals for Haduvio or any future product candidate that successfully completes clinical trials.
Removed paragraphs (17)

Previous report

Chronic Cough in Patients with IPF Program. We previously announced positive data from the full set of patients in our Phase 2 clinical trial of Haduvio for the treatment of chronic cough in patients with IPF, which we refer to as the Phase 2 CANAL trial. The Phase 2 CANAL trial was a randomized, double-blind, placebo controlled, two-treatment, two-period, crossover study that was designed to evaluate the efficacy, safety, tolerability and dosing of Haduvio for chronic cough in patients with IPF that we conducted at multiple sites in the United Kingdom. In total, 42 patients in the study received Haduvio. In the Phase 2 CANAL trial, Haduvio demonstrated statistically significant results for the primary efficacy endpoint of daytime cough frequency reduction (p<0.0001) and for key secondary endpoints on patient and clinician reported outcomes. The safety results of the trial were generally consistent with the known safety profile of Haduvio from previous trials in other patient populations.

Previous report

We are conducting our Phase 2b CORAL clinical trial, which is a dose-ranging study evaluating the efficacy, safety and tolerability of Haduvio for chronic cough in patients with IPF. This trial is being conducted at multiple sites in ten countries and uses a randomized, double-blind, placebo-controlled, parallel-arm design, which evaluates three doses of Haduvio as compared to placebo. The primary efficacy endpoint for the trial is the relative change in 24-hour cough frequency at the end of week six versus baseline for Haduvio compared to placebo, as measured via an objective cough monitor. The protocol for the Phase 2b CORAL clinical trial provided for a sample size re-estimation, or SSRE, analysis once approximately 50% of the patients in the trial were evaluable for the primary endpoint. In October 2024, we reached 50% of the targeted study enrollment. As a result, the SSRE analysis was performed once the last of these patients completed the six weeks of treatment and was evaluable for the primary endpoint. In December 2024, we announced that this analysis resulted in no change to the targeted 160 patient sample size for the trial. We completed enrollment of the trial in February 2025 and expect to announce topline results in the second quarter of 2025.

Previous report

We are also conducting a Phase 1b respiratory physiology study, which we refer to as TIDAL, in the U.K. and U.S. and we have initiated screening. TIDAL is a randomized, single-blind, placebo-controlled study. We expect to enroll up to approximately 25 patients who will be in-patient for ten days. The primary endpoint of the study is the effect of escalating doses of Haduvio on respiratory function. Secondary endpoints of additional respiratory functions will also be measured. The goal of this study is to evaluate the effect of Haduvio on respiratory physiology in patients with IPF of varying disease severity. We plan to use this information to define the patient population for any Phase 3 clinical trials that we may conduct in chronic cough in patients with IPF.

Previous report

We expect to request an end of Phase 2 meeting with the FDA in 2025 and initiate our Phase 3 program in the first half of 2026, subject to the results of the Phase 2b CORAL clinical trial.

Previous report

Chronic Cough in Patients with non-IPF ILD Program. We also plan to develop Haduvio for the treatment of chronic cough in patients with non-IPF ILD. We plan to determine the population of non-IPF ILD patients who may benefit from Haduvio’s cough reduction capabilities and, assuming positive data from the Phase 2b CORAL clinical trial, we plan to conduct a Phase 2 clinical trial for such patients with non-IPF ILD, subject to discussions with Health Authorities.

Previous report

We are in the process of designing our next planned trial of Haduvio in patients with RCC. We expect the objectives for the trial will be to determine the dose response and to select doses to be evaluated in a pivotal clinical trial of Haduvio in patients with RCC as well as to further characterize the safety in this specific patient population. Based on these results, we plan to discuss next steps with the FDA and anticipate initiating the next trial after we receive their input.

Previous report

Human Abuse Potential. In December 2024, we announced positive topline results from the human abuse potential, or HAP, study that demonstrated a statistically significant lower "Drug Liking" for the clinical doses of oral nalbuphine (81mg and 162mg) compared to 6mg intravenous, or IV, butorphanol. The supratherapeutic dose of oral nalbuphine (486mg) was numerically lower than the 6mg IV butorphanol for “Drug Liking” but the results were not statistically significant. Secondary endpoints included pharmacodynamic markers and patient reported outcomes, which were generally consistent with the primary endpoint. No serious adverse events were reported in the study.

Previous report

On May 9, 2023, we paid the remaining amount due under the SVB Loan Agreement, resulting in the full extinguishment of the SVB Term Loan. The total payoff amount was $6.5 million, consisting of the remaining principal amount due of $5.2 million, the final payment fee of $1.2 million, and $0.1 million of accrued interest and prepayment premium.

Previous report

General and administrative expenses for the year ended December 31, 2024 increased $1.9 million, or 18.6%, to $12.1 million from $10.2 million for the year ended December 31, 2023, primarily due to increases in personnel-related expenses, stock-based compensation expense, information technology service costs and market research costs.

Previous report

In June 2020, we entered into a sales agreement, the ATM Sales Agreement, under which we were able to issue and sell shares of common stock, from time to time, having an aggregate offering price of up to $12.0 million. In May 2022, we and SVB Securities LLC (formerly SVB Leerink LLC), or SVB Securities, amended the ATM Sales Agreement to increase the maximum aggregate offering price of common stock that we were able to issue and sell from time to time under the ATM Sales Agreement by $50.0 million, from $12.0 million to up to $62.0 million. Sales of common stock under the ATM Sales Agreement were able to be made by any method that was deemed an “at-the-market” offering as defined in Rule 415(a)(4) under the Securities Act. We were not obligated to make any sales of our common stock under the ATM Sales Agreement. Through August 15, 2023, the date of termination of the ATM Sales Agreement, we had issued and sold an aggregate of 4,333,394 shares of common stock for gross proceeds of $12.7 million, before deducting estimated commissions and allocated fees of $1.0 million.

Previous report

On May 9, 2023, we paid the remaining amount due under the loan and security agreement, or the SVB Loan Agreement, that we originally entered into with Silicon Valley Bank, or SVB, in August 2020, resulting in the full extinguishment of the term loan thereunder, or the SVB Term Loan. The total payoff amount was $6.5 million, consisting of the remaining principal amount due of $5.2 million, the final payment fee of $1.2 million, and $0.1 million of accrued interest and prepayment premium. For further discussion of the SVB Term Loan, see “—Liquidity and Capital Resources.”

Previous report

During the year ended December 31, 2023, net cash used in financing activities was $7.9 million, consisting of repayments of $9.4 million on the SVB Term Loan including payment of the final payment fee and prepayment premium, both associated with the payoff of the SVB Term Loan, payments of offering costs of $0.3 million and payments of $0.1 million on our finance lease. These cash outflows were partially offset by cash proceeds of $1.7 million, net of commissions from sales of our common stock under the ATM Sales Agreement, $0.1 million of cash proceeds from the exercise of stock options and $0.1 million of cash proceeds from sales under our 2019 Employee Stock Purchase Plan.

Previous report

our ongoing Phase 2b CORAL clinical trial and any additional trials of Haduvio for the treatment of chronic cough in patients with IPF;

Previous report

our ongoing Phase 1b TIDAL study to evaluate the effect of Haduvio on respiratory physiology in patients with IPF of varying disease severity;

Previous report

our planned Phase 2 clinical trial and any additional trials of Haduvio for the treatment of chronic cough in patients with non-IPF ILD; and

Previous report

our next clinical trial and any additional trials of Haduvio for the treatment of patients with RCC.

Previous report

the outcome, timing and costs of clinical and non-clinical trials and of seeking regulatory approvals, including the costs of supportive clinical studies;
Reworded paragraphs (26)

Previous wording

We are a clinical-stage biopharmaceutical company focused on the development and commercialization of the investigational therapy Haduvio (oral nalbuphine ER) for the treatment of chronic cough in patients with idiopathic pulmonary fibrosis, or IPF, chronic cough in patients with non-IPF interstitial lung disease or non-IPF ILD, and refractory chronic cough, or RCC. Haduvio is an oral extended-release formulation of nalbuphine. Haduvio acts on the cough reflex arc both centrally and peripherally as a kappa agonist and a mu antagonist, or KAMA. Kappa and mu are opioid receptors that play a key role in controlling cough hypersensitivity. The kappa- and mu-opioid receptors are known to be critical mediators of cough. Nalbuphine is a mixed kappa-opioid receptor agonist and mu-opioid receptor antagonist that has been approved and marketed as an injectable for pain indications for more than 30 years in the United States, or the U.S., and Europe. Nalbuphine’s mechanism of action also potentially mitigates the risk of abuse associated with mu-opioid agonists because it antagonizes, or blocks, the mu-opioid receptor. Parenteral nalbuphine is not scheduled as a controlled substance in the U.S. and most of Europe.

Current wording

We are a clinical-stage biopharmaceutical company focused on the development and commercialization of the investigational therapy Haduvio (oral nalbuphine ER) for the treatment of chronic cough in patients with idiopathic pulmonary fibrosis, or IPF, non-IPF interstitial lung disease, or non-IPF ILD, and refractory chronic cough, or RCC. Haduvio is an oral extended-release formulation of nalbuphine. Haduvio acts on the cough reflex arc both centrally and peripherally as akappa receptora gonist and amu receptora ntagonist (“KAMA”), targeting opioid receptors that play a key role in controlling chronic cough. The kappa- and mu-opioid receptors are known to be critical mediators of cough. Nalbuphine has been approved and marketed as an injectable for pain indications for decades in the United States, or the U.S., and Europe. Nalbuphine’s mechanism of action also mitigates the risk of abuse associated with mu-opioid agonists because it antagonizes, or blocks, the mu-opioid receptor. Parenteral nalbuphine is not scheduled as a controlled substance by the U.S. Drug Enforcement Agency and in most of Europe.

Previous wording

RCC Program. We are also developing Haduvio for the treatment of patients with RCC. In March 2025, we announced positive topline data from our Phase 2a clinical trial of Haduvio in patients with RCC, which we refer to as the Phase 2a RIVER trial. The Phase 2a RIVER trial was a randomized, double-blind, placebo-controlled, two-treatment, two-period, crossover study that was designed to evaluate the efficacy, safety, tolerability and dosing of Haduvio for the treatment of patients with RCC. We conducted this trial at multiple sites in the United Kingdom and Canada. In total, 66 patients in the trial received Haduvio. The primary endpoint of the trial was the mean change in 24-hour cough frequency, as determined by an objective cough monitor, for the full analysis set population at Day 21. The full analysis set population included all patients who received at least one dose of study drug and have objective cough count data on both Baseline and Day 21 in at least one treatment period (N=59). In the trial, Haduvio met the primary endpoint with a statistically significant reduction in the objective 24-hour cough frequency of 67% from baseline and 57% on a placebo-adjusted basis (p<0.0001). Patient reported and other secondary outcomes reported in the top-line data were statistically significant and consistent with the primary endpoint. Haduvio demonstrated a statistically significant reduction for the secondary endpoint of reduction in 24-hour cough frequency in two pre-specified subgroups: patients who coughed 10-19 times/hour (moderate 24-hour cough frequency) (p<0.0001), and patients who coughed 20 or greater times/hour (severe 24-hour cough frequency) (p<0.0001). The safety results of the trial were generally consistent with the known safety profile of Haduvio from previous trials in other patient populations and there were no serious adverse events reported in the trial.

Current wording

In March 2025, we announced positive topline data from our Phase 2a clinical trial of Haduvio for the treatment of patients with RCC, which we refer to as the Phase 2a RIVER trial. The Phase 2a RIVER trial was a randomized, double-blind, placebo-controlled, two-treatment, two-period, crossover study that was designed to evaluate the efficacy, safety, tolerability and dosing of Haduvio for the treatment of patients with RCC. The primary endpoint of the trial was the mean change in 24-hour cough frequency, as determined by an objective cough monitor, for the full analysis set population. In the trial, Haduvio met the primary endpoint at Day 21 with a statistically significant reduction in the objective 24-hour cough frequency of 67% from Baseline and 57% from Baseline on a placebo-adjusted basis (p<0.0001). Planned analyses of all pre-specified secondary endpoints, including patient reported endpoints, at the end of treatment were also statistically significant. The safety results of the trial were generally consistent with the known safety profile of Haduvio from previous trials in other patient populations and there were no serious adverse events reported in the trial.

Previous wording

Since commencing operations in 2011, we have devoted substantially all of our efforts and financial resources to the clinical development of Haduvio. We have not generated any revenue from product sales and, as a result, we have never been profitable and have incurred net losses in each year since commencement of our operations. As of December 31, 2024, we had an accumulated deficit of $287.0 million, primarily as a result of research and development and general and administrative expenses. We do not expect to generate product revenue unless and until we obtain marketing approval for and commercialize Haduvio for the treatment of chronic cough in patients with IPF, chronic cough in patients with non-IPF ILD, or RCC and we can provide no assurance that we will ever generate significant revenue or profits.

Current wording

Since commencing operations in 2011, we have devoted substantially all of our efforts and financial resources to the clinical development of Haduvio. We have not generated any revenue from product sales and, as a result, we have never been profitable and have incurred net losses in each year since commencement of our operations. As of December 31, 2025, we had an accumulated deficit of $329.8 million, primarily as a result of research and development and general and administrative expenses. We do not expect to generate product revenue unless and until we obtain marketing approval for and commercialize Haduvio for the treatment of chronic cough in patients with IPF, non-IPF ILD, or RCC and we can provide no assurance that we will ever generate significant revenue or profits.

Previous wording

As of December 31, 2024, we had cash, cash equivalents and marketable securities of $107.6 million. We believe that our existing cash, cash equivalents and marketable securities will enable us to fund our operating expenses and capital expenditure requirements for at least 12 months from the date of issuance of the Consolidated Financial Statements included in this Annual Report on Form 10-K.

Current wording

As of December 31, 2025, we had cash, cash equivalents and marketable securities of $188.3 million. We believe that our existing cash, cash equivalents and marketable securities will enable us to fund our operating expenses and capital expenditure requirements for at least 12 months from the date of issuance of the Consolidated Financial Statements included in this Annual Report on Form 10-K.

Previous wording

We expect to incur substantial expenditures in the foreseeable future as we advance Haduvio through clinical development, the regulatory approval process and, if approved, commercial launch activities. Specifically, in the near term, we expect to incur substantial expenses relating to the trials we are conducting and plan to conduct for Haduvio including our ongoing Phase 2b CORAL clinical trial and our planned Phase 3 program for the treatment of chronic cough in patients with IPF, our ongoing Phase 1b TIDAL respiratory physiology study in patients with IPF of varying disease severity, our planned Phase 2 clinical trial of Haduvio for the treatment of chronic cough in patients with non-IPF ILD, and our next clinical trial of Haduvio for the treatment of patients with RCC.

Current wording

We expect to incur substantial expenditures in the foreseeable future as we advance Haduvio through clinical development, the regulatory approval process and, if approved, commercial launch activities. Specifically, in the near term, we expect to incur substantial expenses relating to the trials we are conducting and plan to conduct for Haduvio including our planned Phase 3 trials for the treatment of IPF-related chronic cough, our planned adaptive design Phase 2b clinical trial of Haduvio for the treatment of non-IPF ILD-related chronic cough, our planned Phase 2b clinical trial of Haduvio for the treatment of patients with RCC, and any supportive studies necessary for regulatory approval.

Previous wording

We will need substantial additional funding to support our continuing operations and pursue development and commercialization of Haduvio. Until such time as we can generate significant revenue from sales of Haduvio, if ever, we expect to finance our operations through the sale of equity, debt financings or other capital sources, including potential collaborations with other companies or other strategic transactions. Adequate funding may not be available to us on acceptable terms or at all. If we fail to raise capital or enter into such agreements as and when needed, we may have to significantly delay, scale back or discontinue the development and commercialization of Haduvio for one or more indications or delay our efforts to expand our product pipeline.

Current wording

We will need substantial additional funding to support our continuing operations and pursue development and commercialization of Haduvio. Until such time that we can generate significant revenue from sales of Haduvio, if ever, we expect to finance our operations through the sale of equity, debt financings or other capital sources, including potential collaborations with other companies or other strategic transactions. Adequate funding may not be available to us on acceptable terms or at all. If we fail to raise capital or enter into such agreements as and when needed, we may have to significantly delay, scale back or discontinue the development and commercialization of Haduvio for one or more indications or delay our efforts to expand our product pipeline.

Previous wording

We anticipate that our general and administrative expenses will increase as a result of increased personnel costs, including stock-based compensation and expanded infrastructure.

Current wording

We anticipate that our general and administrative expenses will increase as a result of increased personnel costs, including stock-based compensation and expanded infrastructure. We also anticipate that our general and administrative expenses will increase as we expect to continue to incur increased costs as we continue to prepare for compliance with Section 404 of the Sarbanes-Oxley Act of 2002, or SOX 404(b).

Previous wording

Other income, net consists of foreign currency transaction gains and losses. In 2023, other income, net also included employee retention tax credits under the Coronavirus Aid, Relief, and Economic Security Act, or the CARES Act as well as an immaterial effect from the early extinguishment of debt in connection with us paying the remaining amounts due under the SVB Loan Agreement.

Current wording

Other income, net consists of foreign currency transaction gains and losses.

Previous wording

Interest expense consists of the interest expense associated with our finance lease. In 2023, interest expense also included interest under the loan and security agreement, or the SVB Loan Agreement, that we originally entered into with Silicon Valley Bank, or SVB, in August 2020, pursuant to which we borrowed $14.0 million under the SVB Term Loan. In connection with the SVB Term Loan, we recognized interest expense which included amortization of deferred financing charges, accretion of loan discount-financing costs, accrual of the final payment fee, amortization of the term loan discount-interest and the stated interest on the SVB Term Loan.

Current wording

Interest expense consists of the interest expense associated with our finance lease.

Previous wording

Research and development expenses for the year ended December 31, 2024 increased $15.7 million, or 66.3%, to $39.4 million from $23.7 million for the year ended December 31, 2023, primarily due to increased clinical development expenses for our Phase 2b CORAL trial, our Phase 2a RIVER trial, our HAP study, and our Phase 1b TIDAL study along with an increase in personnel-related expenses and stock-based compensation expense. These increases were partially offset by decreased clinical development expenses for our Phase 2b/3 PRISM trial. For the years ended December 31, 2024 and 2023, all of our research and development expenses related to our development activity for Haduvio.

Current wording

Research and development expenses for the year ended December 31, 2025 decreased to $33.5 million from $39.4 million for the corresponding period in 2024, primarily due to decreased clinical development expenses for our HAP study, our Phase 2a RIVER trial, and our Phase 2b CORAL trial, all of which were actively enrolling patients in the prior year period, partially offset by increased costs incurred associated with our recently completed Phase 1 drug-drug interaction study. This overall decrease was partially offset by an increase in personnel related expenses due to increased headcount along with a corresponding increase in stock-based compensation expense.

Previous wording

Other income, net for the year ended December 31, 2024 decreased by $1.2 million, or 25.8% to $3.6 million from $4.8 million for the year ended December 31, 2023. The decrease was primarily due to a decrease in interest income of $1.1 million due to lower cash equivalent and marketable securities balances.

Current wording

Other income, net for the year ended December 31, 2025 was $6.5 million compared to other income, net of $3.6 million for the corresponding period in 2024. The change was primarily due to an increase in interest income from higher invested cash equivalent and marketable securities balances.

Previous wording

On December 17, 2024, we issued and sold 12,500,000 shares of our common stock to certain investors in an underwritten registered direct offering, or the December 2024 Offering, at an offering price of $4.00 per share of common stock pursuant to an underwriting agreement, or the Underwriting Agreement, with Leerink Partners LLC, Stifel, Nicolaus & Company, Incorporated and Oppenheimer & Co. Inc, as representatives of the several underwriters. The December 2024 Offering resulted in aggregate gross proceeds to us of approximately $50.0 million.

Current wording

On December 17, 2024, we issued and sold 12,500,000 shares of our common stock to certain investors in an underwritten registered direct offering, or the December 2024 Offering, at an offering price of $4.00 per share of common stock pursuant to an underwriting agreement with Leerink Partners LLC, Stifel, Nicolaus & Company, Incorporated, and Oppenheimer & Co. Inc, as representatives of the several underwriters. The December 2024 Offering resulted in aggregate gross proceeds to us of approximately $50.0 million.

Previous wording

In June 2023, we filed with the SEC the Shelf Registration Statement, which allows us to offer and sell up to $200.0 million of common stock, preferred stock, debt securities, units and/or warrants from time to time pursuant to one or more offerings at prices and terms to be determined at the time of sale. The Shelf Registration Statement was filed to replace our prior universal shelf registration statement on Form S-3 and was declared effective on August 15, 2023. Further, in June 2023, we entered into the 2023 ATM Sales Agreement with Leerink Partners, under which we may issue and sell shares of common stock, from time to time by any method that is deemed an “at-the-market” offering as defined in Rule 415(a)(4) under the Securities Act. We are not obligated to make any sales of our common stock under the 2023 ATM Sales Agreement. We filed a prospectus under the Shelf Registration Statement for the offer and sale of shares of our common stock having an aggregate offering price of up to $75.0 million pursuant to the 2023 ATM Sales Agreement. In accordance with the terms of the 2023 ATM Sales Agreement, the ATM Sales Agreement terminated upon effectiveness of the Shelf Registration Statement, at which point we were no longer able to issue and sell shares of our common stock under the ATM Sales Agreement. As of December 31, 2024, we had issued and sold 4,498,065 shares of common stock for gross proceeds of $14.6 million, before deducting estimated commissions and allocated fees of $0.5 million under the 2023 ATM Sales Agreement.

Current wording

In June 2023, we filed with the SEC a universal shelf registration statement on Form S-3, or the 2023 Shelf Registration Statement, which allowed us to offer and sell up to $200.0 million of common stock, preferred stock, debt securities, units and/or warrants from time to time pursuant to one or more offerings at prices and terms to be determined at the time of sale. The 2023 Shelf Registration Statement was declared effective on August 15, 2023. Further, in June 2023, we entered into a new sales agreement with Leerink Partners, LLC (formerly SVB Securities LLC), which we refer to as the ATM Sales Agreement, under which we may issue and sell shares of common stock, from time to time by any method that is deemed an “at-the-market” offering as defined in Rule 415(a)(4) under the Securities Act. We are not obligated to make any sales of our common stock under the ATM Sales Agreement. We filed a prospectus under the 2023 Shelf Registration Statement for the offer and sale of shares of our common stock having an aggregate offering price of up to $75.0 million pursuant to the ATM Sales Agreement. In accordance with the terms of the ATM Sales Agreement, the sales agreement we had entered into with SVB Securities LLC in 2020 terminated upon effectiveness of the 2023 Shelf Registration Statement, at which point we were no longer able to issue and sell shares of our common stock under such prior sales agreement.

Previous wording

During the year ended December 31, 2023, operating activities used $31.7 million of net cash, resulting from our net loss of $29.1 million and changes in our operating assets and liabilities of $3.8 million, partially offset by net non-cash charges of $1.2 million. Changes in our operating assets and liabilities for the year ended December 31, 2023 consisted primarily of a $2.9 million increase in prepaid expenses and other current assets and a $1.0 million decrease in accounts payable. The increase in prepaid expenses and other current assets was primarily due to an increase in prepayments related to our clinical trial work performed by our CROs. The decrease in accounts payable was primarily due to the timing of vendor invoices. The non-cash charges consisted primarily of stock-based compensation expense of $2.2 million, $0.4 million for the write off of deferred offering costs, a $0.4 million change in value of our operating lease right-of-use assets and liabilities and $0.2 million of accretion/accrual of term loan discounts and debt issuance costs, which were partially offset by $2.1 million of accretion of our available-for-sale marketable securities.

Current wording

During the year ended December 31, 2025, operating activities used $42.1 million of net cash, resulting from our net loss of $42.8 million and changes in our operating assets and liabilities of $3.5 million partially offset by net non-cash charges of $4.2 million. Changes in our operating assets and liabilities for the year ended December 31, 2025 consisted primarily of a $1.5 million increase in prepaid expenses and other current assets, a $1.4 million decrease in accrued expenses and other liabilities and a $0.6 million decrease in accounts payable. The increase in prepaid expenses and other current assets was primarily due to an increase in accrued interest and dividends receivable from our higher invested cash equivalent and marketable securities balances, as well as an increase in deposits related to our clinical trial work performed by our CROs. The decrease in accrued expenses and other liabilities was primarily due to a decrease in accruals for clinical development and clinical trial work performed by our CROs. The decrease in accounts payable was primarily due to the timing of vendor invoices. The non-cash charges consisted primarily of stock-based compensation expense of $5.2 million, and a $0.4 million change in value of our operating lease right-of-use assets and liabilities, which were partially offset by $1.6 million of accretion of our available-for-sale marketable securities.

Previous wording

During the year ended December 31, 2024, operating activities used $38.3 million of net cash, resulting from our net loss of $47.9 million partially offset by changes in our operating assets and liabilities of $6.8 million and net non-cash charges of $2.8 million. Changes in our operating assets and liabilities for the year ended December 31, 2024 consisted primarily of a $2.7 million decrease in prepaid expenses and other current assets, a $2.6 million increase in accrued expenses and other liabilities and a $1.6 million increase in accounts payable. The decrease in prepaid expenses and other current assets was primarily due to a decrease in prepayments related to our clinical trial work performed by our CROs. The increase in accrued expenses and other liabilities was primarily due to an increase in accruals for clinical development and clinical trial work performed by our CROs. The increase in accounts payable was primarily due to the timing of vendor invoices. The non-cash charges consisted primarily of stock-based compensation expense of $3.6 million, a $0.5 million change in value of our operating lease right-of-use assets and $0.1 million of depreciation and amortization expense, which were partially offset by $1.4 million of accretion of our available-for-sale marketable securities.

Current wording

During the year ended December 31, 2024, operating activities used $38.3 million of net cash, resulting from our net loss of $47.9 million partially offset by changes in our operating assets and liabilities of $6.8 million and net non-cash charges of $2.8 million. Changes in our operating assets and liabilities for the year ended December 31, 2024 consisted primarily of a $2.7 million decrease in prepaid expenses and other current assets, a $2.6 million increase in accrued expenses and other liabilities and a $1.6 million increase in accounts payable. The decrease in prepaid expenses and other current assets was primarily due to a decrease in prepayments related to our clinical trial work performed by our CROs. The increase in accrued expenses and other liabilities was primarily due to an increase in accruals for clinical development and clinical trial work performed by our CROs. The increase in accounts payable was primarily due to the timing of vendor invoices. The non-cash charges consisted primarily of stock-based compensation expense of $3.6 million, a $0.5 million change in value of our operating lease right-of-use assets, which were partially offset by $1.4 million of accretion of our available-for-sale marketable securities.

Previous wording

During the year ended December 31, 2023, net cash provided by investing activities was $59.4 million, consisting of $69.5 million of proceeds from maturities of available-for-sale marketable securities, partially offset by $9.9 million of purchases of available-for-sale marketable securities and $0.1 million of purchases of property, equipment and leasehold improvements.

Current wording

During the year ended December 31, 2025, net cash used in investing activities was $94.1 million, primarily related to $170.7 million of purchases of available-for-sale marketable securities partially offset by $76.6 million of proceeds from maturities of available-for-sale marketable securities.

Previous wording

During the year ended December 31, 2024, net cash used in investing activities was $21.5 million, consisting of $98.5 million of purchases of available-for-sale marketable securities and less than $0.1 million of purchases of property, equipment and leasehold improvements, partially offset by $77.0 million of proceeds from maturities of available-for-sale marketable securities.

Current wording

During the year ended December 31, 2024, net cash used in investing activities was $21.5 million, consisting of $98.5 million of purchases of available-for-sale marketable securities, partially offset by $77.0 million of proceeds from maturities of available-for-sale marketable securities.

Previous wording

During the year ended December 31, 2024, net cash provided by financing activities was $61.5 million, consisting of cash proceeds of $47.0 million, net of commissions from sales of our common stock in our December 2024 Offering, cash proceeds of $14.1 million, net of commissions from sales of our common stock under the ATM Sales Agreement, $0.4 million of cash proceeds from the exercise of stock options and $0.1 million of cash proceeds from sales under our 2019 Employee Stock Purchase Plan. These cash inflows were partially offset by payments of $0.1 million on our finance lease.

Current wording

During the year ended December 31, 2024, net cash provided by financing activities was $61.5 million, consisting of cash proceeds of $47.0 million, net of commissions from sales of our common stock in our December 2024 Offering, cash proceeds of $14.1 million, net of commissions from sales of our common stock under the ATM Sales Agreement, $0.4 million of cash proceeds from the exercise of stock options.

Previous wording

the scope, progress, timing, costs and results of clinical trials of Haduvio, including our ongoing Phase 2b CORAL clinical trial and our planned Phase 3 program of Haduvio, each for the treatment of chronic cough in patients with IPF, our ongoing Phase 1b TIDAL study to evaluate the effect of Haduvio on respiratory physiology in patients with IPF of varying disease severity, our planned Phase 2 clinical trial of Haduvio for the treatment of chronic cough in patients with non-IPF ILD, and our next clinical trial in patients with RCC, as well as trials for any future product candidates;

Current wording

the scope, progress, timing, costs and results of clinical trials of Haduvio, including our planned Phase 3 trials of Haduvio for the treatment of IPF-related chronic cough, our planned adaptive design Phase 2b clinical trial of Haduvio for the treatment of non-IPF ILD-related chronic cough, our planned Phase 2b clinical trial for the treatment of RCC, and our planned Phase 1 NDA supportive studies, as well as trials for any future product candidates and the costs of seeking regulatory approvals;

Previous wording

the costs of commercialization activities for Haduvio for the treatment of chronic cough in patients with IPF, chronic cough in patients with non-IPF ILD and RCC or for any future product candidates that receive marketing approval, if any, including the costs and timing of establishing product sales, marketing, distribution and manufacturing capabilities;

Current wording

the costs of commercialization activities for Haduvio for the treatment of IPF-related chronic cough, non-IPF ILD and RCC or for any future product candidates that receive marketing approval, if any, including the costs and timing of establishing product sales, marketing, distribution and manufacturing capabilities;

Previous wording

subject to receipt of marketing approvals, revenue, if any, received from commercial sales of Haduvio for the treatment of chronic cough in patients with IPF, chronic cough in patients with non-IPF ILD or RCC or from any future product candidates;

Current wording

subject to receipt of marketing approvals, revenue, if any, received from commercial sales of Haduvio for the treatment of chronic cough in patients with IPF, non-IPF ILD or RCC or from any future product candidates;

Previous wording

our ability to identify potential collaborators for Haduvio for the treatment of patients with prurigo nodularis or for the treatment of chronic cough in patients with IPF, chronic cough in patients with non-IPF ILD or RCC or for any future product candidates and the terms and timing of any collaboration agreement that we may establish for the development and any commercialization of such product candidates;

Current wording

our ability to identify potential collaborators for Haduvio for the treatment of chronic cough in patients with IPF, non-IPF ILD or RCC or for any future product candidates, and the terms and timing of any collaboration agreement that we may establish for the development and any commercialization of such product candidates;

Previous wording

our potential obligation to make milestone payments to Endo Pharmaceuticals Inc., or Endo, which would become due upon the successful completion of the first Phase 3 clinical trial of a licensed product candidate and the marketing approval of a licensed product in the U.S., as well as our potential obligations to pay Endo royalties on the net sales of the product;

Current wording

our potential obligation to make milestone payments to Keenova Therapeutics plc, or Keenova, which would become due upon the successful completion of the first Phase 3 clinical trial of a licensed product candidate and the marketing approval of a licensed product in the U.S., as well as our potential obligations to pay Keenova royalties on the net sales of the product;

Previous wording

We believe that our existing cash, cash equivalents and marketable securities, will enable us to fund our operating expenses and capital expenditure requirements into the second half of 2026.

Current wording

We believe that our existing cash, cash equivalents and marketable securities, will enable us to fund our operating expenses and capital expenditure requirements into 2028. We expect these resources will enable us to fund our planned Phase 3 trials of Haduvio for the treatment of IPF-related chronic cough, our planned adaptive design Phase 2b clinical trial in non-IPF ILD-related chronic cough, our planned Phase 2b clinical trial in RCC, and our planned Phase 1 NDA supportive studies. However, these resources will not be sufficient for us to fund Haduvio for any indication or any future product candidates through regulatory approval, and we will need to raise substantial additional capital to complete the development and commercialization of Haduvio and any future product candidates.

Previous wording

We do not have any committed external source of funds. Accordingly, we will be required to obtain further funding through public or private equity offerings, debt financings, collaborations, licensing arrangements or other sources to complete the clinical development and commercialization of Haduvio for the treatment of chronic cough in patients with IPF, chronic cough in patients with non-IPF ILD or RCC or any other indication, including to conduct our planned clinical trials to completion. If we raise additional funds by issuing equity securities, our stockholders may experience dilution. Any debt financing into which we enter would result in fixed payment obligations and may involve agreements that include grants of security interests on our assets and restrictive covenants that limit our ability to take specific actions, such as incurring additional debt, making capital expenditures, granting liens over our assets, redeeming stock or declaring dividends, that could adversely impact our ability to conduct our business. In addition, securing financing could require a substantial amount of time and attention from our management and may divert a disproportionate amount of their attention away from day-to-day activities, which may adversely affect our management’s ability to oversee the development of our product candidates. Any debt financing that we seek or additional equity that we raise may contain terms that could adversely affect our common stockholders.

Current wording

We do not have any committed external source of funds. Accordingly, we will be required to obtain further funding through public or private equity offerings, debt financings, collaborations, licensing arrangements or other sources to complete the clinical development and commercialization of Haduvio for the treatment of chronic cough in patients with IPF, non-IPF ILD or RCC or any other indication. If we raise additional funds by issuing equity securities, our stockholders may experience dilution. Any debt financing into which we enter would result in fixed payment obligations and may involve agreements that include grants of security interests on our assets and restrictive covenants that limit our ability to take specific actions, such as incurring additional debt, making capital expenditures, granting liens over our assets, redeeming stock or declaring dividends, that could adversely impact our ability to conduct our business. In addition, securing financing could require a substantial amount of time and attention from our management and may divert a disproportionate amount of their attention away from day-to-day activities, which may adversely affect our management’s ability to oversee the development of our product candidates. Any debt financing that we seek or additional equity that we raise may contain terms that could adversely affect our common stockholders.

Previous wording

A significant portion of our development activities are outsourced to third parties under agreements, including with CROs and contract manufacturers in connection with the production of clinical trial materials. The contracts are cancelable at any time by us, generally upon 60 days' prior written notice to the CRO, and therefore we believe that our non-cancelable obligations under these agreements are not material.

Current wording

A significant portion of our development activities are outsourced to third parties under agreements, including with CROs and contract manufacturers in connection with the production of clinical trial materials. The contracts are cancelable at any time by us, generally upon 45 to 60 days' prior written notice to the CRO, and therefore we believe that our non-cancelable obligations under these agreements are not material.
Rearranged current paragraphs (1)

Current report — wording carried from elsewhere

In November 2025, we filed an automatic universal shelf registration statement on Form S-3, or the 2025 Shelf Registration Statement, with the SEC, which became effective upon filing. The 2025 Shelf Registration Statement permits us to offer and sell an indeterminate amount of common stock, preferred stock, debt securities, units and/or warrants from time to time pursuant to one or more offerings at prices and terms to be determined at the time of sale. The 2025 Shelf Registration Statement was filed to replace our prior universal shelf registration statement. Concurrently with the filing of the 2025 Shelf Registration Statement, we filed a new prospectus supplement pursuant to which shares of our common stock having an aggregate offering price of up to $200.0 million may be offered and sold from time to time under the ATM Sales Agreement. No shares were sold under the ATM Sales Agreement during the twelve months ended December 31, 2025.