Syndax shares fall as lung fibrosis drug fails trial
Syndax Pharma's shares fell 17% pre-market after abandoning its IPF drug axatilimab, which failed a phase 2 trial. The drug, partnered with Incyte, is approved for cGVHD as Niktimvo. Incyte's shares also dipped slightly. Syndax reported $152M in 2025 revenue, with $115M in the first half of 2026.
How this was made

The 30-second read
Why it matters
The trial failure is a material negative catalyst for Syndax, likely triggering a sell‑off. Incyte (NASDAQ:INCY), the partner, experiences a modest pullback due to its exposure to the program.
Market read
Immediate price impact for SNDX and secondary effect for INCY; broader biotech sentiment may be affected.
What to watch
Potential revenue from the approved cGVHD indication could offset the IPF setback.
Background
Syndax Pharma (NASDAQ:SNDX) halted development of axatilimab for idiopathic pulmonary fibrosis after a Phase 2 trial failed to meet its primary endpoint. The company continues development of the drug for chronic graft‑versus‑host disease, a market where it already has an approved product.
Ticker impact
Syndax Pharma announced abandonment of its IPF drug axatilimab after a failed Phase 2 trial, causing a 17% pre‑market drop.
downward pressure as investors price in the failed trial and loss of potential revenue.
Phase 2 failure is material for a biotech; market reacts quickly to trial data.
Incyte, partner of Syndax on axatilimab, saw a slight dip after Syndax's trial failure was disclosed.
modest downside as investors assess exposure to the failed program.
Incyte's own pipeline remains intact; impact limited to partnership exposure.
Market effects
Biotech sector may see broader risk aversion to early‑stage IPF programs.
US biotech stocks could face short‑term pressure.
Limited to investors tracking clinical trial outcomes.
Counterpoint
If Syndax can pivot axatilimab to other indications, the long‑term upside may remain.
Key entities
- companySyndax Pharma
Biotech firm developing axatilimab for IPF and cGVHD.
- companyIncyte
Partner licensed axatilimab rights; faces minor share dip.

