Lexicon · NucLex for innovators
Theranostics
Fully specified name: Theranostics (concept)
The relationship between diagnostic characterization and therapy, often organized around a shared biological target in nuclear medicine.
- Scope note
- A broad term does not make all diagnostic and therapeutic pairings interchangeable.
- Synonyms
- theragnostics
- Monograph
- Radiopharmaceutical identity (planned; brief only)
- External mappings
- None recorded. In W0 no mapping to SNOMED CT® or any external authority is asserted for this entry. A future mapping record will carry source system, identifier, version, relation type, evidence, author, confidence where meaningful, and review state.
- Formal status
- Editorial entry only. It is not part of any released ontology and a prose edit here changes no formal definition.
Draft. This entry is an unreviewed draft. Its sources have not been checked by a named person and no domain reviewer has approved it. Treat every claim as provisional.
Notes
"Theranostics" is a blend of therapeutics and diagnostics. In nuclear medicine it usually describes a pairing: a diagnostic radiopharmaceutical shows whether a molecular target is present and where, and a therapeutic radiopharmaceutical directed at the same target delivers radiation to those sites. The pairing may use the same targeting molecule labeled with different radionuclides, or related molecules chosen for the same target.
The word is used loosely in several ways, and the ontology must keep them apart. Some writers use it for any imaging-then-treatment sequence, including conventional imaging followed by a drug. Others reserve it for radionuclide pairs with a shared ligand. Industry and investor language sometimes stretches it to cover whole platforms or business lines. A radiochemist will want to know exactly which molecule and which radionuclide are in each half of the pair, because small changes in either can alter where the agent goes in the body.
For NucLex the useful unit is the stated pairing: which diagnostic agent, which therapeutic agent, which target, and what evidence links the imaging finding to the expected therapeutic behavior. Membership in the broad category says nothing about whether a specific diagnostic result predicts a specific therapeutic result. That claim needs its own evidence, and this entry makes no such claim for any agent.