Target

CLDN18

Claudin-18

As of the edition of 20 October 2026, CLDN18 (claudin-18, UniProt P56856) has 1 drug tested at it and 2 companies on the list, 0 on route A and 1 on route B.

Sources: UniProt, ClinicalTrials.gov, ChEMBL, FDA Orange Book and Purple Book, Pharos.

The protein

UniProt
P56856
How well studied
Biology documented; no tool compounds or approved drug yet
Where it sits in the cell
In more than one place
Solved structures
3
Disease areas
Cancer; Digestive system; Hormones
Registered trials of its drugs
22

Drugs at this target

StatusCount
Marketed1
Total1
DrugStatusFurthest phaseUS protection
ZolbetuximabMarketedPhase 4Ends 2036

1 of 1 drugs, the most tested first.

Companies at this target

Where the company standsCompanies
Route B1
Engaged1
Total on the list2
Three companies on route A or B, with the route only
CompanyRoute
AstellasRoute B

The other 1 company at CLDN18

In the product

2 companies in all; 1 is not named here, and no score is.

See the 2 companies at CLDN18, ranked, with the facts behind eachRequest access. Nothing is shown until you do.