Clinical trial data can be defined as any information or fact related to a clinical trial. What information in our daily work belongs to clinical trial data? It can be numbers, characters, medical history, medication records, examination reports, records, and signatures, etc. Data can basically be divided into three types:

1. Source data - data obtained from raw laboratory reports, pathology reports, surgical reports, physician progress records, medical records, X-rays, tumor measurements, etc.

2. Intermediate data, including CRF (Case Report Form), ICF (Informed Consent Form), investigation product (IP) accountability logs, etc.

3. The final data includes the final report.