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Arcus Biosciences, Inc. (RCUS)·Q3 2025 Earnings Summary
Executive Summary
- Q3 2025 revenue was $26.0M, down 46% y/y, but above S&P Global consensus ($20.25M); EPS was ($1.27), modestly better than consensus ([$1.29]); Arcus maintained FY25 GAAP revenue guidance of $225–$235M . Revenues: $26.0M vs $20.25M; EPS: ($1.27) vs ($1.29)*.
- Casdatifan Phase 1/1b ARC‑20 pooled monotherapy data showed mPFS of 12.2 months and 18‑month landmark PFS of 43%, with 35% confirmed ORR at the Phase 3 dose; PEAK‑1 (Phase 3) is enrolling, and early‑line strategies advance into 2026 .
- Domvanalimab + zimberelimab + chemo achieved 26.7 months median OS in 1L upper GI adenocarcinomas (EDGE‑Gastric, Arm A1), presented at ESMO and published in Nature Medicine; STAR‑221 Phase 3 OS readout expected in 2026 .
- Cash and investments were $841M at quarter‑end, with management reiterating runway through initial pivotal readouts (domvanalimab, quemliclustat, casdatifan, including PEAK‑1); R&D expected to decline starting Q4 2025 as TIGIT Phase 3 costs taper .
- Catalysts: casdatifan ARC‑20 maturation (1H/Mid/2H 2026), STAR‑221 Phase 3 OS, PRISM‑1 completion, AstraZeneca eVOLVE‑RCC02 Phase 1b data and go/no‑go for Phase 3 in 2H 2026 .
What Went Well and What Went Wrong
What Went Well
- “Casdatifan has a best‑in‑class profile, based on a meaningfully higher response rate and longer PFS relative to the only marketed HIF‑2α inhibitor,” with pooled ARC‑20 mPFS of 12.2 months, 18‑month PFS landmark of 43%, and 35% confirmed ORR at 100mg QD; 74% of responders remained on treatment .
- Domvanalimab + zimberelimab + chemo showed 26.7 months median OS in 1L upper GI adenocarcinoma, supporting the STAR‑221 Phase 3 registrational path (OS expected in 2026) .
- Funding strength: $841M cash/equivalents/marketable securities and reiterated runway through PEAK‑1 and initial pivotal readouts; Taiho’s option exercise for casdatifan in Japan/Asia adds optionality .
What Went Wrong
- Revenue fell y/y to $26M due to absence of prior‑year license revenue and lower Gilead collaboration revenues; net loss widened to ($135M) as late‑stage programs ramped (PRISM‑1, PEAK‑1) despite G&A decreases .
- AstraZeneca’s eVOLVE‑RCC02 Phase 1b temporarily paused new recruitment due to immune‑mediated AEs (≤ Grade 3); ongoing participant monitoring will inform next steps .
- R&D reimbursements declined y/y ($28M vs $37M), and expense volatility tied to manufacturing and standard‑of‑care therapeutic purchases continues; R&D downshift guided to start Q4 2025 .
Financial Results
Income Statement and EPS vs Prior Periods and Estimates
Values marked with * are retrieved from S&P Global.
Balance Sheet Highlights
Clinical/Operating KPIs
Guidance Changes
Earnings Call Themes & Trends
Management Commentary
- “Casdatifan has a best‑in‑class profile, based on a meaningfully higher response rate and longer PFS… We remain well capitalized and funded through readout of multiple Phase 3 trials…” — Terry Rosen, Ph.D., CEO .
- On durability and dose: “With the 100mg tablet, we have a median time on treatment of over 12 months… we are quite confident the median PFS is going to be over 12 months for that tablet.” — Terry Rosen, Investor Event (Oct 6) .
- On combination strategy: “We expect this [castadafen + cabozantinib] to be a long‑lasting and durable story… no overlapping toxicity; no patients discontinued both products.” — Richard Markus, CMO .
- On market sizing and approach: “We should get well more than 50% share of the HIF‑2α market… it’s only us and Merck.” — Jennifer Jarrett, COO .
Q&A Highlights
- Best‑in‑class profile versus belzutifan: management emphasized faster time to response, higher ORR, lower primary progression, and longer PFS without added safety burden, supported by translational EPO suppression correlations .
- Development path clarity: PEAK‑1 uses PFS as primary endpoint for full approval; OS is key secondary with expected adequacy at submission, distinguishing from dual‑endpoint designs in competitor trials .
- Frontline strategy: preference for TKI‑free PD‑1/CTLA‑4 + HIF‑2α (eVOLVE‑RCC02), citing overlapping IO/TKI toxicities that can hamper triple regimens; AstraZeneca operating and cost‑sharing .
- Pricing approach: intend to price near belzutifan with flat pricing across doses; potential flexibility as cabozantinib generics emerge .
- Operational execution: strong enrollment track record (e.g., >1,000 patients in STAR‑221 in 18 months; PRISM‑1 fully enrolled in ~9–12 months) to support rapid PEAK‑1 timelines .
Estimates Context
Values marked with * are retrieved from S&P Global.
Key Takeaways for Investors
- Arcus delivered a clean top‑line beat on both revenue and EPS while maintaining FY25 revenue guidance ($225–$235M), supported by license/collaboration streams and robust cash runway through multiple Phase 3 readouts .
- Casdatifan’s late‑line ARC‑20 data continue to strengthen the best‑in‑class narrative versus belzutifan, with superior durability and response metrics likely to drive PEAK‑1 success and frontline momentum via eVOLVE‑RCC02 .
- Near‑term operating leverage should improve as TIGIT Phase 3 expenses taper from Q4 2025, moderating R&D intensity against growing clinical validation cycles .
- The 26.7‑month OS in EDGE‑Gastric materially de‑risks the domvanalimab + zimberelimab program ahead of STAR‑221 OS in 2026, creating a second potential value pillar .
- Taiho’s option exercise for casdatifan in Japan/Asia enhances ex‑US strategic optionality without sacrificing Arcus’s core economic control elsewhere .
- Trading implications: incremental estimate revisions should skew positive on casdatifan durability assumptions; watch for PEAK‑1 enrollment updates, AstraZeneca eVOLVE‑RCC02 pace post temporary pause, and PRISM‑1 milestone timing .
- Medium‑term thesis: dual oncology pillars (HIF‑2α and TIGIT) plus new I&I portfolio provide diversified catalysts through 2026–2027; execution track record and capital position reduce financing risk across pivotal events .
Notes:
- No Q3 2025 earnings call transcript was available in our catalog; analysis leverages the Oct 6, 2025 Investor/R&D Day transcript for management commentary and Q&A –.
- All document claims are cited from Arcus filings/releases; estimate comparisons use S&P Global data where marked with *.