OnCo

CD137 (4-1BB, TNFRSF9)

Short target page →

4-1BB is a switch on activated T cells that makes them live longer and kill better. Rather than press it everywhere, new bispecific antibodies press it only on T cells that are already touching a tumour cell marked by PD-L1 or HER2. This dossier gathers the 2 products (0 approved), 3 trials, 0 pathways and 0 resistance routes in the corpus that involve it, with external identifiers so it can be joined to UniProt, ChEMBL, Open Targets and the rest of biology.

Biology

Both corpus agents cluster 4-1BB only where the other arm has bound a tumour antigen (PD-L1 or HER2), so costimulation is confined to T cells in contact with the tumour rather than delivered systemically.

Where it is found
  • Activated CD8 T cells
  • NSCLC (acasunlimab) and HER2-positive gastric cancer (cinrebafusp alfa) trials
Class: surface antigen · Gene: TNFRSF9 · Facts checked 2026-09-22 · Target page

External identifiers

Built from HGNC, Ensembl, UniProt and ChEMBL ids

Products by modality and phase

Browse products →
ModalityPhase 3Phase 2
Bispecific antibody
1
-
fusion protein
1
-
3 trials
Trial
3Active
2Active
2Active

Resistance routes

Unaddressed routes →

The resistance atlas has no route that names this target.

No pathway diagram carries this target as a node.

Companion diagnostics

Assay registry →

No companion diagnostic in the registry measures this target.

Preclinical models

All models →

No model entry for this target yet; check the cancer entries on the models page.

No open questions recorded for this target yet. Suggest one.

Ideas and companies

Ideas · 0

Literature

Preprints →
Latest papers · live from Europe PMC
Open in Europe PMC

Query for this target: (TITLE:"CD137" OR ABSTRACT:"CD137" OR TITLE:"4-1BB, TNFRSF9" OR ABSTRACT:"4-1BB, TNFRSF9" OR TITLE:"TNFRSF9" OR ABSTRACT:"TNFRSF9" OR TITLE:"4-1BB" OR ABSTRACT:"4-1BB" OR TITLE:"ILA" OR ABSTRACT:"ILA" OR TITLE:"TNF receptor superfamily member 9" OR ABSTRACT:"TNF receptor superfamily member 9") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about CD137 (4-1BB, TNFRSF9), not a curated reading list.

Export

The dossier as machine-readable JSON: identifiers from HGNC, Ensembl, UniProt and ChEMBL, products with status, trials, pathways, hotspots, open questions and assays. The full entity record is in the open API at /api/v1/entities/cd137.json. Licence CC BY-NC 4.0.