C-BEYOND Enrollment Completed and Imminent Top-Line Data
Completed patient enrollment for C-BEYOND in North America with >880 patients; top-line SVR24 (primary endpoint) results expected mid-2026; trial is randomized 1:1 vs the standard of care (Epclusa).
C-FORWARD Near-Complete Enrollment Supporting Broad Label
C-FORWARD (ex‑North America) has completed ~95% enrollment of cirrhotic and non-cirrhotic patients; enrollment remains open only to less prevalent genotypes (4, 5, 6) to support a broad label; top-line data expected around year-end 2026.
Robust Phase 3 Design and Statistical Power
Both Phase 3 trials are powered at 90% with a 5% non-inferiority margin and primary endpoint SVR24; expected SVR rates ~95% in the MITT population (consistent with Phase 2 results); company plans a combined analysis (shared with FDA) that could support a superiority claim.
Regimen Profile—Potential Best-in-Class Attributes
Bemnifosbuvir/ruzasvir (BEM‑RZR) demonstrates high efficacy and short treatment durations (8 weeks for cirrhotics vs 12 weeks for SOC in some groups), low drug‑drug interaction risk (no interaction observed with PPIs—used by ≈35% of HCV patients—and with statins), and no food effect; additional supportive data to be presented at EASL.
HEV Program Progress (AT‑587) with Clear Path to First‑in‑Human
CTA‑enabling GLP toxicology and safety pharmacology completed for AT‑587; first‑in‑human study anticipated mid‑year (single ascending and multiple ascending dose phases, MAD includes 7 days), proof‑of‑concept study planned around year‑end with a likely 12‑week treatment arm; preclinical data show strong potency against genotype 3, low DDI potential, predicted human exposure above in vitro EC50, and an estimated addressable market of $750M–$1B annually (≈3% of ~450k at‑risk patients in US/EU).
Commercial Positioning and Prescriber Interest
U.S. HCV market estimated at ~$1.3B (≈50% of a ~$2.6B global market); independent IQVIA research (153 high prescribers) indicated physicians would likely prescribe BEM‑RZR to ~50% of their patients; prescriber base is concentrated (~7.8k physicians write ~80% of DAA prescriptions), enabling a capital‑efficient commercial model with an estimated specialty sales force ~75.
Manufacturing and Supply Readiness
All components and processes for large-scale manufacturing are in place, commercial supply production is underway, expected low cost of goods relative to net pricing, and 4‑week blister card packaging planned to support adherence.
Solid Near-Term Financial Position
Cash and marketable securities of $256 million as of 03/31/2026; company projects this cash runway will extend through 2027 to fund Phase 3 completion, regulatory activities, and HEV program advancement.