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CD28 is the second signal a T cell needs before it attacks. Many CAR-T cells carry a piece of CD28 inside them to fire harder, ipilimumab works by stopping CTLA-4 from hogging CD28's partners, and a new bispecific antibody presses CD28 directly on T cells that are already bound to prostate cancer cells. This dossier gathers the 1 product (0 approved), 1 trial, 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.
CD28 is constitutively expressed on T cells, and CD80 on antigen-presenting cells is its primary auxiliary signal (UniProt P33681). The bispecific approach costimulates only T cells whose other arm is already engaged with a tumour antigen, here PSMA.
| Modality | Phase 3 |
|---|---|
| Bispecific antibody 1 |
| Trial | Setting | Result | Products | ||
|---|---|---|---|---|---|
| 3 | Recruiting | A Phase 3 Randomized, Double-blind, Placebo-controlled Study of Pasritamig (JNJ-78278343), a T Cell Engaging Agent Targeting Human Kallikrein 2, With or Without JNJ-87189401, a PSMA-CD28 Costimulatory Agent, Plus Best Supportive Care Versus Best Supportive Care for Late-line Metastatic Castration-resistant Prostate Cancer | - |
No recorded escape route names this target.
No pathway diagram carries this target as a node.
No companion diagnostic in the registry measures this target.
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.
Query for this target: (TITLE:"CD28" OR ABSTRACT:"CD28" OR TITLE:"CD28 molecule" OR ABSTRACT:"CD28 molecule" OR TITLE:"CD28 costimulatory receptor" OR ABSTRACT:"CD28 costimulatory receptor") 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 CD28, not a curated reading list.
The dossier as machine-readable JSON, at /api/v1/dossiers/cd28.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/cd28.json. Licence CC BY-NC 4.0.