An Electronic Pharmacy Site File (ePSF) is a Part 11–compliant digital repository within a Clinical Trial Management System (CTMS) that manages investigational product documentation, pharmacy records, and accountability data across clinical trials. It standardises how pharmacy-controlled records are created, organised, authorised, and audited in alignment with ICH-GCP requirements. In simple terms, ePSF works as the pharmacy control centre of a clinical trial. It keeps every investigational product record in one place, so pharmacy teams track storage, dispensing, and accountability with clear ownership and time-stamped activity.
Notably, a ePSF is built to help clinical research teams manage:
- Investigational product accountability logs across study sites
- Drug dispensing records linked to authorised pharmacy personnel
- Storage conditions and inventory tracking documentation
- Pharmacy file structures based on study protocols and sponsor requirements
- Record version history, status control, and document lifecycle tracking
- Role-based access, permissions, and authorisation workflows
- Audit trails with time-stamped activity and electronic signatures
- Inspection-ready documentation for monitoring, audits, and regulatory review
This structure ensures that investigational product documentation remains organised, traceable, and continuously ready for oversight across clinical trials.
Also Read:AQ’s Guide to Electronic Investigator Site Files in Clinical Research
Core Functions of an Electronic Pharmacy Site File (ePSF)
| Core Function | What It Covers | Operational Outcome |
| Structured Pharmacy Record Management | Standardised folder structures, templates, and document organisation for investigational product records across studies | Consistent documentation across sites with faster record retrieval |
| Investigational Product Accountability Tracking | Real-time visibility into dispensing logs, inventory status, and accountability records | Clear oversight of drug movement and reduced reconciliation effort |
| Authorisation and Role-Based Access Control | Permission-based access, role assignments, and controlled document actions | Defined responsibility across pharmacy personnel with secure record handling |
| Audit Trails and Activity History | Time-stamped logs of document creation, updates, reviews, and approvals | Full traceability for every action during monitoring and inspections |
| Document Lifecycle and Status Control | Version control, document status indicators, and revision tracking | Accurate record management with controlled updates and no data confusion |
| Compliance and Electronic Signatures | Part 11-compliant eSignatures and regulatory-aligned workflows | Verified accountability and adherence to ICH-GCP requirements |
| Operational Dashboards and Oversight | Study-level visibility into documentation status, gaps, and activity trends | Early identification of issues with improved pharmacy oversight |
| Inspection and Audit Readiness | Centralised, organised access to all pharmacy documentation | Faster audits, smoother inspections, and reduced preparation time |
Read AQ’s Guide to CTMS.
What Does ePSF Manage in a Clinical Trial Environment?
Okay, now let us explain it all walking you through a real-time example.
A Phase III oncology study runs across multiple hospital sites. Each site receives investigational product shipments, maintains storage conditions, dispenses doses to participants, and records accountability activity. Sponsor teams plan monitoring visits, while auditors prepare for inspection review. This environment creates continuous pharmacy activity across multiple records and responsible personnel.
Now, here is how ePSF gets used step by step:
- Investigational product receipt gets logged in ePSF
Shipment details, batch numbers, and storage requirements get captured
→ A central record forms for every drug unit received across sites - Storage and inventory records stay updated within the system
Temperature logs, storage conditions, and stock levels remain documented
→ Controlled storage oversight and accurate inventory visibility stay maintained - Dispensing activity gets recorded against authorised personnel
Each dose links to a participant, visit, and responsible pharmacist
→ Clear accountability forms for investigational product handling - Accountability status stays visible across all records
Dispensed, remaining, and returned quantities update in real time
→ Reconciliation effort reduces during monitoring and sponsor review - Pharmacy documents stay organised within structured folders
Logs, forms, and records follow predefined templates and hierarchy
→ Documentation consistency stays maintained across sites and studies - Access control and approvals remain role-based
Permissions define who can create, edit, or approve records
→ Responsibility stays clearly assigned across pharmacy teams - Audit trails capture every activity automatically
Each action links to a user with time-stamped history
→ Full traceability supports audits and regulatory inspections - Record retrieval stays immediate during reviews
All pharmacy documentation remains accessible in one system
→ Monitoring visits and inspections proceed faster with organised data
So, this flow shows how ePSF helps manage investigational product documentation, pharmacy operations, and accountability within a controlled clinical trial environment.
ePSF vs eISF in Clinical Trials
| Aspect | ePSF (Electronic Pharmacy Site File) | eISF (Electronic Investigator Site File) |
| Primary Purpose | Manages investigational product documentation and pharmacy accountability | Manages overall clinical trial documentation at the site level |
| Core Focus Area | Pharmacy operations and drug accountability | Investigator site documentation and study conduct |
| Data Type | Drug inventory, dispensing logs, storage records, accountability logs | Protocols, consent forms, regulatory documents, site records |
| Ownership | Clinical trial pharmacists and pharmacy teams | Investigators, study coordinators, and site staff |
| Operational Role | Tracks investigational product movement and ensures accountability | Maintains essential documents required for trial execution |
| Document Scope | Pharmacy-specific records linked to investigational product lifecycle | Broad study documentation across all trial functions |
| Traceability | Tracks who handled, dispensed, or updated drug-related records | Tracks document creation, review, and approval across study documents |
| Compliance Focus | Ensures drug accountability, storage compliance, and dispensing control | Ensures regulatory compliance, ethics approvals, and study documentation completeness |
| System Structure | Structured around pharmacy workflows and accountability tracking | Structured around trial documentation categories and regulatory requirements |
| Inspection Readiness | Demonstrates investigational product traceability and accountability history | Demonstrates completeness of essential documents for trial conduct |
| Position in CTMS | Pharmacy control layer within the clinical trial system | Core documentation layer within the clinical trial system |
How ePSF Supports Compliance and Data Integrity?
An Electronic Pharmacy Site File (ePSF) strengthens compliance and data integrity by placing investigational product documentation within a controlled, traceable, and standardised digital environment inside the Clinical Trial Management System (CTMS). It aligns pharmacy records with ICH-GCP principles and 21 CFR Part 11 requirements through structured documentation, permission-based access, electronic signatures, and system-generated audit trails. Each activity related to investigational product handling remains attributable, time-stamped, and review-ready, which supports accurate accountability and consistent regulatory oversight across clinical trials.
Key ways ePSF supports compliance and data integrity:
- Regulatory-aligned documentation structure. Standardised pharmacy file frameworks align with ICH-GCP expectations for investigational product accountability and site documentation
- Part 11–compliant electronic signatures. Authorised approvals remain linked to verified users with secure, validated eSignatures
- Complete audit trails and activity history. Every document action records user identity, timestamp, and activity type for full traceability
- Role-based access and permission control. System-defined roles restrict document actions to authorised pharmacy personnel, which protects data integrity
- Controlled document lifecycle and version management. Version tracking and status control maintain accurate, current, and non-duplicated pharmacy records
- Traceable investigational product accountability. Dispensing, storage, and inventory records connect to responsible users and study events
- Consistent data capture across study sites. Template-driven structures ensure uniform documentation regardless of sponsor or protocol variation
- Continuous inspection readiness. Centralised and organised records support immediate access during monitoring visits, audits, and regulatory inspections
Who Uses ePSF in Clinical Research?
| User Group | Role in Clinical Trials | How ePSF Supports Them | Key Data / Documents Managed |
| Clinical Trial Pharmacists | Manage investigational product (IP) storage, dispensing, and accountability at site level | Provides controlled workflows for dispensing, inventory tracking, and accountability reconciliation within CTMS | Dispensing logs, drug accountability records, storage conditions, batch tracking |
| Hospital Research Pharmacies | Oversee pharmacy operations across multiple clinical studies within hospital settings | Standardises pharmacy documentation and maintains consistent investigational product governance across studies | Inventory records, temperature logs, site-level accountability files, reconciliation reports |
| Principal Investigators (PIs) | Hold overall responsibility for trial conduct and compliance at the site | Enables visibility into investigational product handling and pharmacy compliance linked to study activities | Accountability summaries, pharmacy oversight records, compliance documentation |
| Clinical Research Coordinators (CRCs) | Support day-to-day trial operations, including participant scheduling and coordination with pharmacy | Facilitates coordination with pharmacy teams through structured, accessible investigational product records | Participant-linked dispensing records, visit-based drug allocation data |
| Sponsors (Pharma / Biotech Companies) | Monitor trial performance, investigational product usage, and regulatory compliance across sites | Provides centralised access to pharmacy documentation for monitoring visits and oversight reviews | Study-wide accountability logs, inventory status reports, audit trails |
| Contract Research Organisations (CROs) | Manage trial execution, monitoring, and compliance on behalf of sponsors | Enables remote monitoring of investigational product documentation and accountability across multiple sites | Monitoring reports, accountability verification data, inspection readiness records |
| Regulatory Authorities (FDA, EMA, MHRA) | Conduct inspections and ensure compliance with ICH-GCP and regulatory standards | Allows efficient review of traceable, time-stamped pharmacy records and investigational product history | Audit trails, electronic signatures, accountability documentation, compliance records |
| Quality Assurance (QA) Teams | Ensure data integrity, audit readiness, and adherence to regulatory frameworks | Supports internal audits with complete traceability and controlled document lifecycle management | Audit logs, deviation records, compliance checks, document version history |
AQ ePSF for Controlled Investigational Product Accountability and Pharmacy Oversight
AQ ePSF brings investigational product accountability into a dedicated pharmacy environment while maintaining direct alignment with eTMF, eISF, and quality systems. This approach supports controlled pharmacy operations, clear traceability, and unified clinical trial data management across the entire research ecosystem.
Within AQ, ePSF connects with:
- eTMF for sponsor-level oversight and regulatory documentation alignment
- eISF for investigator site documentation and study conduct continuity
- CAPA and quality workflows for deviation tracking and corrective actions linked to pharmacy records
- Role-based access and responsibility assignment across pharmacy personnel and study teams
- Audit trails and electronic signatures that maintain traceability across sponsor, site, and pharmacy activities
- Participant and study workflows within CTMS, where dispensing aligns with visits and enrolment data
- Centralised oversight across multi-site trials with consistent pharmacy documentation structures