# MedicalTrialDesign - Schema.org Enumeration Type

> Source: https://schema.org/MedicalTrialDesign
> Extracted: 2026-02-16T18:49:46.752Z

---

**Note**: You are viewing the development version of [Schema.org](https://schema.org/). See [how we work](https://schema.org/docs/howwework.html) for more details.

A Schema.org Enumeration Type

Design models for medical trials. Enumerated type.

Instances of [MedicalTrialDesign](https://schema.org/MedicalTrialDesign "MedicalTrialDesign") may appear as a value for the following properties

Property

On Types

Description

[trialDesign](https://schema.org/trialDesign "trialDesign")

[MedicalTrial](https://schema.org/MedicalTrial "MedicalTrial")

Specifics about the trial design (enumerated).

#### Enumeration members

-   [DoubleBlindedTrial](https://schema.org/DoubleBlindedTrial "DoubleBlindedTrial")
-   [InternationalTrial](https://schema.org/InternationalTrial "InternationalTrial")
-   [MultiCenterTrial](https://schema.org/MultiCenterTrial "MultiCenterTrial")
-   [OpenTrial](https://schema.org/OpenTrial "OpenTrial")
-   [PlaceboControlledTrial](https://schema.org/PlaceboControlledTrial "PlaceboControlledTrial")
-   [RandomizedTrial](https://schema.org/RandomizedTrial "RandomizedTrial")
-   [SingleBlindedTrial](https://schema.org/SingleBlindedTrial "SingleBlindedTrial")
-   [SingleCenterTrial](https://schema.org/SingleCenterTrial "SingleCenterTrial")
-   [TripleBlindedTrial](https://schema.org/TripleBlindedTrial "TripleBlindedTrial")

### Acknowledgements