Target

DLL4

Delta-like protein 4

As of the edition of 20 October 2026, DLL4 (delta-like protein 4, UniProt Q9NR61) has 4 drugs tested at it and 4 companies on the list, 3 on route A and 0 on route B.

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

The protein

UniProt
Q9NR61
How well studied
Biology documented; no tool compounds or approved drug yet
Where it sits in the cell
At a membrane
Solved structures
1
Disease areas
Cancer; Digestive system; Hormones; Pregnancy and women's health; Urinary and reproductive; Lungs and airways; Skin and connective tissue
Registered trials of its drugs
15

Drugs at this target

StatusCount
Active1
Went quiet2
Stopped1
Total4
DrugStatusFurthest phaseUS protection
DemcizumabWent quietPhase 2none listed
NavicixizumabActivePhase 3none listed
DilpacimabStoppedPhase 2none listed
EnoticumabWent quietPhase 1none listed

4 of 4 drugs, the most tested first.

Companies at this target

Where the company standsCompanies
Route A3
Engaged1
Total on the list4
Three companies on route A or B, with the route only
CompanyRoute
AbbVieRoute A
RegeneronRoute A
Mereo BioPharmaRoute A

The other 1 company at DLL4

In the product

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

See the 4 companies at DLL4, ranked, with the facts behind eachRequest access. Nothing is shown until you do.