Rung 5 of 7
In vitro
A study in cells, tissue or a cell-free preparation, outside a living organism.
Last updated
Qualifies
- Concentration reported in molar or mass units, with the assay named.
- A control condition.
- Cell line or tissue source identified.
Does not qualify
- Concentrations that could not be reached in a living body, unless that limitation is stated on the record alongside the finding.
- No control condition.
What this rung does not license you to say
No dose, no route, and no bioavailability may be inferred. A concentration in a dish says nothing about what a vial delivers to a tissue. In-vitro activity is a reason to run a study, not a reason to take something.
For example Receptor-binding affinity measured in a cell-free assay, with a reference ligand as control.
Claims currently on this rung
The claim index is generated from the record set and is not built yet.
When it is, this section lists every claim across all 196 records sitting at
in_vitro — which is what makes the ladder auditable rather than decorative.