Study relationship types
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Clinical research studies may relate to each other, forming clusters of inter-related research. Being able to store these relationships allows the MDR to identify studies related to those already selected by a user, and thus help in finding relevant material.
The relationship types were all developed by ECRIN, and relate to relationships found particularly within clinical research. In almost all cases they come in related pairs, allowing both ‘views’ of a relationship.
| id | name | description | source |
|---|---|---|---|
| 11 | Is a sub-study of | A sub-study or sub-protocol undertaken at the same time as the main study. | ECRIN |
| 12 | Includes as a sub-study | Has as a sub-study or sub-protocol, undertaken at the same time as the main study. | ECRIN |
| 13 | Is in the same series as | Study in a sequence that began with the target study (excluding feasibility studies). | ECRIN |
| 14 | Is the first of a sequence including | Study that began a sequence (excluding feasibility studies), that included the referenced study. | ECRIN |
| 15 | Is a feasibility study for | A feasibility or pilot study for the referenced study. | ECRIN |
| 16 | Is preceded by the feasibility study | A study preceded by the referenced feasibility or pilot study. | ECRIN |
| 17 | Is a later phase variant of | For trials using the phase I to IV classification, is a later phase continuation of the referenced study. | ECRIN |
| 18 | Is an earlier phase variant of | For trials using the phase I to IV classification, is an earlier phase precursor to the referenced study. | ECRIN |
| 19 | Is a continuation of | A study that uses some or all of the same subject population as the referenced study. | ECRIN |
| 20 | Is continued by | A study where some or all of the same subject population were targeted in the referenced study. | ECRIN |
| 21 | Is a repeat of | A study that uses a different population and the same or similar protocol as the earlier referenced study. | ECRIN |
| 22 | Is repeated by | A study that is repeated by the referenced study, which has the same or similar protocol but uses a different population. | ECRIN |
| 0 | Not yet known | Dummy value supplied by default on entity creation. | ECRIN |
