Target

IL21

Interleukin-21

As of the edition of 20 October 2026, IL21 (interleukin-21, UniProt Q9HBE4) has 2 drugs tested at it and 2 companies on the list, 2 on route A and 0 on route B.

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

The protein

UniProt
Q9HBE4
How well studied
Biology documented; no tool compounds or approved drug yet
Where it sits in the cell
Secreted
Solved structures
3
Disease areas
Immune system; Skin and connective tissue; Bones, joints and muscles; Digestive system; Hormones; Nutrition and metabolism
Registered trials of its drugs
7

Drugs at this target

StatusCount
Went quiet2
Total2
DrugStatusFurthest phaseUS protection
NNC0114-0006Went quietPhase 2none listed
AvizakimabWent quietPhase 2none listed

2 of 2 drugs, the most tested first.

Companies at this target

Where the company standsCompanies
Route A2
Total on the list2
Three companies on route A or B, with the route only
CompanyRoute
Novo NordiskRoute A
Boston PharmaceuticalsRoute A

The other 0 companies at IL21

In the product

2 companies in all; 0 are not named here, and no score is.

See the 2 companies at IL21, ranked, with the facts behind eachRequest access. Nothing is shown until you do.