Element & Epoch

[helpmedoubts]

What is the exact difference between Element and Epoch in SDTM?

[ChrisNZ]

please correct your title. moved to clinical community.

[helpmedoubts]

Thank you. Will update the title. Typo error. Sorry for the inconvenience.

[RAVI2000 · Accepted solution]

Element:
In a study you will have treatment groups.
For example, consider drugA, drugB.
For single treatment group drug A will have elements like "SCREENING", "TREATMENT", "FOLLOW-UP".
Similarly, for drug B it will have elements.

EPOCH:
Every study will have EPOCH.
The purpose is to identify, in which part of the study the patient is present.
This is used for a trial as a whole.

[helpmedoubts]

Thank you for explaining clearly.