Last reviewed 2026-04-19 · How we verify

EOS100850

iTeos Therapeutics · Phase 1 active Small molecule

EOS100850 is a Small molecule drug developed by iTeos Therapeutics. It is currently in Phase 1 development. Also known as: Inupadenant.

Likelihood of approval

9.6% vs 9.6% industry baseline

If approved by FDA: likely 2033–2036

Steps remaining: Phase 2 → Phase 3 → NDA/BLA submission

Confidence: Medium

Why this estimate

Baseline phase 1 → approval rate +9.6pp
Industry-wide phase 1 drugs reach approval ~9.6% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).

Predicted approval windows by jurisdiction (conditional on FDA approval)

Regulator	Country	Likely year	Lag vs FDA
FDA	US	2033–2036	—
EMA	EU	2034–2037	+0.7 yr
MHRA	GB	2034–2037	+0.7 yr
Health Canada	CA	2034–2038	+0.9 yr
TGA	AU	2034–2038	+1.2 yr
PMDA	JP	2034–2038	+1.5 yr
NMPA	CN	2035–2039	+2.3 yr
MFDS	KR	2034–2038	+1.4 yr
CDSCO	IN	2034–2039	+1.8 yr
ANVISA	BR	2035–2039	+2.3 yr

Hover any row for the lag rationale. Lag estimates are reduced when the drug has FDA Breakthrough or EMA PRIME designation (sponsors file globally in parallel).

Estimate based on the BIO/Informa industry phase transition rates plus per-drug modifiers for therapeutic area, sponsor type, FDA designations, mechanism, and trial design. Per-jurisdiction lags from Tufts CSDD international approval studies. Not investment, clinical or regulatory advice. Methodology: /methodology#likelihood.

At a glance

Generic name	EOS100850
Also known as	Inupadenant
Sponsor	iTeos Therapeutics
Modality	Small molecule
Phase	Phase 1

Approved indications

No approved indications tracked.

Common side effects

No common side effects on file.

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:

EOS100850 CI brief — competitive landscape report
EOS100850 updates RSS · CI watch RSS
iTeos Therapeutics portfolio CI

Frequently asked questions about EOS100850

What is EOS100850?

EOS100850 is a Small molecule drug developed by iTeos Therapeutics.

Who makes EOS100850?

EOS100850 is developed by iTeos Therapeutics (see full iTeos Therapeutics pipeline at /company/iteos-therapeutics).

Is EOS100850 also known as anything else?

EOS100850 is also known as Inupadenant.

What development phase is EOS100850 in?

EOS100850 is in Phase 1.

Manufacturer: iTeos Therapeutics — full pipeline
Also known as: Inupadenant

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing