Trevi Therapeutics (TRVI) Q1 2025: 57% Placebo-Adjusted Cough Reduction Drives Pipeline Inflection

Trevi’s first-quarter data readout from the RIVER trial delivered a 57% placebo-adjusted cough reduction, validating the central mechanism of Hedubio in refractory chronic cough and setting up a pivotal quarter as the company awaits Phase 2b IPF data. With cash runway into late 2026 and multiple catalysts pending, investor focus shifts to the upcoming CHORAL trial results, which will determine both regulatory path and partnership potential.

Summary

  • RIVER Trial Data Validates Central Mechanism: Hedubio’s 57% placebo-adjusted cough reduction in RCC underscores differentiation.
  • CHORAL IPF Readout Is the Next Major Catalyst: Top-line data this quarter will define program trajectory and financing needs.
  • Regulatory and Commercial Pathways Remain Fluid: FDA engagement and potential ex-US partnerships hinge on IPF results.

Performance Analysis

Trevi’s business model centers on late-stage development of Hedubio, a dual central and peripheral acting therapy targeting chronic cough in both refractory chronic cough (RCC) and idiopathic pulmonary fibrosis (IPF) populations. The company’s value hinges on clinical trial execution and regulatory milestones rather than commercial sales at this stage. During Q1 2025, Trevi reported a net loss of $10.4 million, a modest improvement over the prior year, driven by lower R&D expenses as the human abuse potential study wound down. G&A costs increased due to higher headcount, reflecting scaling for late-stage development and potential commercialization.

Cash and investments totaled $103.3 million, providing runway into Q4 2026, which is critical as the company awaits pivotal data and regulatory feedback. The completion of enrollment in the CHORAL Phase 2b IPF trial and the statistically robust RIVER data have positioned Trevi for a potentially transformative period. The company’s share structure remains highly diluted, with 137 million fully diluted shares outstanding, reflecting prior capital raises and warrant exercises typical of clinical-stage biotechs.

  • R&D Spend Moderates as Trials Mature: Q1 R&D dropped to $7.8 million as major studies reached completion, with future costs tied to next-phase trial decisions.
  • G&A Expansion Signals Commercial Readiness: Increased G&A outlays reflect growing infrastructure for late-stage and eventual launch activities.
  • Cash Runway Extends Beyond Key Catalysts: $103.3 million in cash supports operations through key IPF and RCC milestones, reducing near-term financing risk.

The quarter’s financials underscore a classic late-stage biotech profile: disciplined spend, high dilution, and a clear dependency on clinical readouts for value realization.

Executive Commentary

"The strong momentum of 2024 at TREVI continued into the first quarter of 2025 with the positive data readout from the Phase IIa River Trial in RCC patients and the completion of enrollment in the Phase IIb Coral Trial in IPF chronic cough patients."

Jennifer Good, President and CEO

"As of March 31, 2025, our cash and investments totaled $103.3 million, which gives us runway into the fourth quarter of 2026. We plan to use this cash to complete our ongoing Phase IIb choral trial of Hedubio for chronic cough in patients with IPF, and based on this data, we'll determine the development path forward in our programs and the related financing needs."

Lisa Delfini, Chief Financial Officer

Strategic Positioning

1. Hedubio’s Central Mechanism as a Differentiator

The RIVER trial’s 57% placebo-adjusted cough reduction validates Trevi’s thesis that central as well as peripheral action is required for meaningful efficacy in chronic cough. Unlike failed peripherally acting competitors, Hedubio’s mechanism addresses cough hypersensitivity at the brain level, broadening its potential patient reach and positioning it as a first-in-class candidate for both RCC and IPF cough populations.

2. Pipeline Expansion and Clinical Optionality

With positive RIVER data and the imminent CHORAL IPF readout, Trevi is positioned to expand into additional interstitial lung disease (ILD) subpopulations. The company is already planning a basket trial for ILDs and leveraging crossover trial learnings for future study designs, which could open up larger addressable markets pending successful IPF results.

3. Regulatory Engagement and Commercial Flexibility

Recent FDA feedback has been timely and constructive, with clear guidance on technical endpoints and safety monitoring requirements. Trevi is preparing for an end-of-Phase 2 meeting post-CHORAL, with plans for a 52-week safety database to satisfy regulatory standards. Commercially, the company is equipping itself for a solo US launch but remains open to ex-US partnerships, particularly in Europe and Japan, contingent on data and timing.

4. Stakeholder Engagement and Scientific Visibility

Trevi is ramping up scientific and investor engagement, hosting KOL panels and planning data presentations at major conferences (ATS, ERS) to boost awareness and build advocacy among prescribers and payers ahead of pivotal data releases.

Key Considerations

Trevi’s quarter is defined by clinical momentum and a high-stakes data readout cycle, with investors weighing the near-term binary outcomes against longer-term platform potential.

Key Considerations:

  • Binary Catalyst Risk: The CHORAL IPF readout this quarter will determine both regulatory path and future financing needs, driving near-term share price volatility.
  • Central Mechanism Validation: RIVER data supports Hedubio’s differentiated profile, but broader adoption will require confirmation in larger, more diverse IPF and ILD populations.
  • Regulatory and Safety Requirements: FDA’s 52-week safety mandate is integrated into planning, but timelines and resource needs could shift based on agency feedback post-data.
  • Commercial Strategy Uncertainty: Trevi is building US launch readiness but remains flexible for ex-US partnerships, with deal timing and structure hinging on IPF results.
  • Share Dilution and Capital Structure: Fully diluted share count is elevated, reflecting prior capital raises, which will impact future valuation and deal negotiations.

Risks

Trevi faces classic late-stage biotech risks: binary clinical trial outcomes, regulatory uncertainty around endpoints and safety, and significant dilution from prior and future financings. The company’s ability to secure favorable FDA feedback and advance to Phase 3 without adverse safety signals or operational delays will be critical. Commercial execution risk remains, especially if ex-US partnerships do not materialize or if payer adoption lags.

Forward Outlook

For Q2 2025, Trevi guided to:

  • Top-line CHORAL Phase 2b IPF data release
  • Ongoing data presentations at ATS and planned ERS submissions

For full-year 2025, management maintained guidance:

  • Cash runway into Q4 2026
  • Development path and financing needs to be determined post-IPF data

Management highlighted several factors that will shape the outlook:

  • FDA engagement timing and clarity on pivotal trial requirements
  • Potential for expanded ILD basket trials pending IPF data success

Takeaways

Trevi’s investment case now hinges on near-term clinical data and regulatory clarity, with the RIVER trial’s robust efficacy signal providing momentum but not yet de-risking the broader platform.

  • Clinical Validation Drives Optionality: The 57% cough reduction in RCC sets a new efficacy benchmark but must be replicated in IPF for broad adoption.
  • Regulatory and Commercial Path Remain Contingent: FDA clarity and ex-US dealmaking will follow the CHORAL IPF readout, not precede it.
  • Investors Should Watch: The magnitude and durability of IPF efficacy and safety, as well as any new signals from KOL and regulatory engagements, will be decisive for valuation and strategic direction.

Conclusion

Trevi enters a pivotal quarter with strong clinical momentum and sufficient cash, but remains a high-risk, high-reward story pending the outcome of the CHORAL IPF trial. Investors should focus on the upcoming data as the primary determinant of both near-term value and long-term strategic flexibility.

Industry Read-Through

Trevi’s central mechanism success in RCC and potential IPF efficacy will be closely watched across the chronic cough and rare lung disease landscape. The ability to show robust efficacy and safety in both conditions could shift development priorities for other biotechs, emphasizing dual central-peripheral approaches over peripherally acting agents. Regulatory clarity on endpoints and safety monitoring will inform trial designs sector-wide, while Trevi’s evolving commercial and partnership strategy may set precedents for late-stage specialty pharma business models.