Which of the following is considered a source document?

A source document is defined as an original record where clinical trial data are first captured. Pharmacy dispensing records are a prime example, as they contain the original, firsthand information about the investigational product dispensed to a subject, including dates, quantities, and batch numbers. This data is essential for drug accountability and verifying protocol adherence. The information from these records is subsequently transcribed into the Case Report Form (CRF) and is critical for the reconstruction and evaluation of the trial, as mandated by Good Clinical Practice (GCP) guidelines.

A. The subject instruction sheet: This is a guidance document for the participant and does not contain original, recorded clinical data.

B. Standard operating procedures (SOPs): These are instructional documents that dictate how to perform trial-related tasks, not records of subject data.

C. The protocol: This is the overall plan for the clinical trial; it is a set of instructions, not a record of collected data.

1. International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH). Guideline for Good Clinical Practice E6(R2). November 9, 2016.

Section 1.52 (Source Documents): Explicitly lists "pharmacy dispensing records" as an example of a source document. It defines source documents as "Original documents, data, and records (e.g., hospital records...pharmacy dispensing records...)."

2. U.S. Food and Drug Administration (FDA). CFR - Code of Federal Regulations Title 21, Part 312.62, Investigator recordkeeping and record retention.

Paragraph (b): This section requires investigators to maintain "adequate and accurate case histories that record all observations and other data pertinent to the investigation," which encompasses source documents like pharmacy records.

3. Collaborative Institutional Training Initiative (CITI Program). Good Clinical Practice (GCP) Courseware.

Modules on "Source Documents in Clinical Research" consistently define source documents as the first place data is recorded and provide examples including medical records, lab reports, and pharmacy logs, while distinguishing them from instructional documents like protocols and SOPs. (Content widely adopted by universities for research compliance training).