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“headline”: “SOP for Source Documentation Standards (ALCOA/ALCOA+) in Clinical Trials”,
“description”: “This SOP establishes standards for source documentation in clinical trials based on ALCOA/ALCOA+ principles, ensuring data integrity, regulatory compliance, and inspection readiness in accordance with ICH GCP, FDA, EMA, CDSCO, and WHO guidelines.”,
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Published on 23/12/2025
Standard Operating Procedure for Source Documentation Standards (ALCOA/ALCOA+)
| Department | Clinical Research |
| SOP No. | CR/DATA/049/2025 |
| Supersedes | NA |
| Page No. | 1 of 22 |
| Issue Date | 26/08/2025 |
| Effective Date | 01/09/2025 |
| Review Date | 01/09/2026 |
Purpose
The purpose of this SOP is to define the standards for creating, maintaining, and verifying source documentation in clinical trials based on ALCOA/ALCOA+ principles. Proper documentation
Scope
This SOP applies to investigators, study coordinators, monitors, and other clinical trial staff responsible for documenting trial-related information. It covers paper and electronic source data including medical records, laboratory reports, subject diaries, and case report forms (CRFs).
Responsibilities
- Principal Investigator (PI): Ensures all source data meet ALCOA/ALCOA+ standards and verifies entries against CRFs.
- Study Coordinator: Records trial-related information accurately and maintains source documentation in ISF.
- Monitors (CRA): Verify source data against CRFs during monitoring visits.
- Sponsor/CRO: Provides guidance and oversight to ensure compliance with documentation standards.
- Quality Assurance Officer: Reviews source documentation for compliance during audits and inspections.
Accountability
The PI is accountable for ensuring all trial source documentation complies with ALCOA/ALCOA+ principles. Sponsors are accountable for ensuring oversight and continuous monitoring of documentation practices.
Procedure
1. ALCOA Principles
Attributable: Each entry must identify who recorded it.
Legible: Data must be clear and readable.
Contemporaneous: Data must be recorded at the time of observation.
Original: Records must be the original or a certified copy.
Accurate: Entries must reflect the true findings without alteration.
2. ALCOA+ Additional Principles
Complete: Include all data, even errors (with corrections documented).
Consistent: Ensure uniformity of data over time.
Enduring: Records must be preserved over the trial duration and retention period.
Available: Documentation must be accessible for review by monitors, auditors, and inspectors.
3. Documentation Practices
Record data immediately at point of observation.
Correct errors with a single line, initial, and date; do not erase or overwrite.
Ensure electronic systems have audit trails.
Document late entries clearly with justification.
4. Verification and Monitoring
Cross-check source documentation with CRFs.
Monitors verify accuracy and completeness during site visits.
Discrepancies must be resolved and documented in Source Data Verification (SDV) Log (Annexure-1).
5. Archiving
Retain source documents in ISF/TMF as per regulatory timelines (minimum 5–25 years based on region).
Ensure security, confidentiality, and controlled access.
Abbreviations
- SOP: Standard Operating Procedure
- ALCOA: Attributable, Legible, Contemporaneous, Original, Accurate
- ALCOA+: Complete, Consistent, Enduring, Available
- PI: Principal Investigator
- CRA: Clinical Research Associate
- CRF: Case Report Form
- ISF: Investigator Site File
- TMF: Trial Master File
- QA: Quality Assurance
Documents
- Source Data Verification Log (Annexure-1)
- Documentation Correction Log (Annexure-2)
- Source Document Access Log (Annexure-3)
References
- ICH E6(R2) – Good Clinical Practice
- US FDA – Data Integrity and Compliance Guidelines
- EMA – Data Integrity in Clinical Trials
- CDSCO – Clinical Trial Documentation Requirements
- WHO – Data Integrity in Clinical Research
Version: 1.0
Approval Section
| Prepared By | Rajesh Kumar, Clinical Research Associate |
| Checked By | Sunita Reddy, QA Officer |
| Approved By | Dr. Anil Sharma, Principal Investigator |
Annexures
Annexure-1: Source Data Verification Log
| Date | CRF Page | Source Document Verified | Discrepancy Found | Corrective Action |
|---|---|---|---|---|
| 12/09/2025 | Page 15 | Lab Report | No | N/A |
Annexure-2: Documentation Correction Log
| Date | Document | Correction Made | Reason | Initials |
|---|---|---|---|---|
| 14/09/2025 | Progress Note | Corrected subject weight entry | Data entry error | RK |
Annexure-3: Source Document Access Log
| Date | Name | Role | Purpose | Authorized By |
|---|---|---|---|---|
| 15/09/2025 | Ravi Kumar | CRA | Monitoring Visit | PI |
Revision History
| Revision Date | Revision No. | Revision Details | Reason for Revision | Approved By |
|---|---|---|---|---|
| 26/08/2025 | 00 | Initial version | New SOP creation | Head, Clinical Research |
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