How do sponsors safeguard the data quality and GCP compliance of their clinical trial through effective clinical monitoring?
We provide experienced Clinical Research Associates (CRAs) for on-site, remote and risk-based monitoring in line with ICH E6 (GCP): source data verification, review of protocol adherence, informed consent review and escalation of deviations across all trial phases. The effective lever is rarely visit frequency, but the risk assessment behind it. Without a documented rationale, reduced monitoring looks like a failure to oversee the trial during an inspection, not like an efficient approach.
- Pharma
- Biotech
- MedTech
- IVD
Overview
What monitoring risks arise in clinical trials?
Monitoring across drug and medical device trials · ICH E6 (GCP), EU 536/2014 (CTR), EU 2017/745 (MDR), ISO 14155:2020
Last updated: 2026-06-13
Inadequate clinical monitoring is one of the most common causes of findings in GCP inspections. Under ICH E6, responsibility for oversight remains with the sponsor, even when tasks are delegated to a CRO or to individual CRAs. Four weaknesses occur particularly often:
- Protocol deviations accumulate undetected when monitoring visits are too infrequent or carried out without risk-based prioritization. A monitoring plan with no link to the critical data points of the trial fails to achieve the purpose of oversight under ICH E6(R2).
- Informed consent documentation is incomplete or not compliant. Under ICH E6, the protection of trial participants and the usability of the data depend directly on consent that has been properly obtained and documented.
- Source data verification is incomplete, or the case report forms diverge from the source data. If entries cannot be substantiated against the source documents, the data integrity of the trial cannot be demonstrated.
- Reduced monitoring is introduced without documenting the underlying risk analysis. Risk-based monitoring is permitted under ICH E6(R2), but only on the basis of a traceable, documented risk assessment. Without it, it looks like a failure to oversee the trial.
Services
How we support you
On-site monitoring & source data verification
Full monitoring visits at the investigational sites in line with ICH E6: informed consent review, source data verification against the source documents, tracking of protocol deviations, training of site staff and escalation of open items. Deliverable: written monitoring visit reports to ICH E6 standard.
Remote & central monitoring
A combination of remote monitoring and central data oversight to identify anomalous patterns across sites. Prioritization of the critical data points without full source data verification at every site. Deliverable: documented central monitoring analyses and remote reports.
Risk-based monitoring & monitoring plan
Building a risk-based monitoring approach in line with ICH E6(R2): identification of critical data and processes, definition of visit frequency and monitoring mix per risk level. Deliverable: monitoring plan with a documented risk assessment.
Site management & site relations
Support for site initiation, training of trial staff and ensuring timely data submission. Deliverable: documented site initiation visits and tracked action lists per site.
Learn more →CRA interim & team extension
Deployment of Entourage CRAs into ongoing trial teams: to bridge vacancies, for individual sites, or as additional capacity during high-recruitment phases. Deliverable: ready-to-deploy CRAs with a documented handover into the monitoring plan and TMF.
Monitoring of medical device investigations
Monitoring of clinical investigations of medical devices under EU 2017/745 and ISO 14155:2020, as well as performance studies for in vitro diagnostics under EU 2017/746. Deliverable: monitoring reports tailored to the type of investigation.
Learn more →How we work together
What it comes down to
Effective clinical monitoring does not begin with the first site visit, but with the risk assessment. Under ICH E6(R2), the entire monitoring approach is derived from the question of which data and processes in a trial are critical. Only from this do visit frequency and the mix of on-site monitoring, remote monitoring and central data oversight follow. Anyone who reverses this order and first sets a blanket visit frequency ties up resources at low-risk sites and overlooks the anomalous ones. This is the most common reason why protocol deviations accumulate undetected.
The real difficulty here is rarely the individual deviation, but its traceability: reduced source data verification is permitted, but only with a documented risk analysis, and every finding must be reconstructable from visit report through follow-up and closure all the way into the Trial Master File. This is exactly where we come in. Our CRAs anchor the risk assessment in the monitoring plan before the first participant is enrolled, and keep sponsor oversight under ICH E6 consistently documented, even when monitoring tasks are delegated to a CRO and responsibility remains with the sponsor.
Our approach
Our approach
Step
Result
Risk assessment & monitoring plan
Identified critical data and processes, the resulting monitoring mix and visit frequency, documented in the monitoring plan in line with ICH E6(R2).
Site initiation
Trained site staff, reviewed trial documents, a documented initiation visit before enrollment of the first participant.
Ongoing monitoring
On-site and remote visits performed with source data verification, informed consent review and tracking of protocol deviations.
Escalation & follow-up
Assessed and tracked findings, escalated critical deviations, closed action items per site.
Close-out
Close-out visit performed, complete and inspection-ready filing of the monitoring-relevant documents in the TMF.
Common pitfalls
Where projects commonly fail
Monitoring frequency is set uniformly across all sites.
Without risk-based prioritization in line with ICH E6(R2), anomalous or high-recruitment sites receive too little attention, while low-risk sites tie up resources.
Reduced monitoring is introduced, but the risk assessment is not documented.
Reduced source data verification is permitted under ICH E6(R2). Without a traceable, documented risk analysis, the inspector treats the reduced monitoring as a failure to oversee the trial.
Protocol deviations are recorded in the visit reports, but not assessed.
Recurring deviations of the same type without root cause analysis demonstrate to the inspector a systemic problem in quality management under ICH E6, not just isolated errors at a single site.
Sponsor oversight of delegated monitoring exists only on paper.
Under ICH E6, the sponsor remains responsible for oversight, even when monitoring is fully delegated to a CRO. Without documented reviews of the monitoring reports and escalation paths, this is a standard finding in GCP inspections.
Monitoring findings are closed, but not filed traceably in the TMF.
If visit reports, follow-up and closure of the action items cannot be reconstructed throughout the trial, there is no evidence that oversight actually had any effect.
FAQ
Frequently asked questions
Sources
- ICH E6(R2) and ICH E6(R3), Good Clinical Practice (primary text)
- Regulation (EU) 536/2014 (Clinical Trials Regulation), primary text
- Regulation (EU) 2017/745 (MDR), primary text, clinical investigations
- Regulation (EU) 2017/746 (IVDR), primary text, performance studies
- ISO 14155:2020, Clinical investigation of medical devices for human subjects
- https://theentourage.de/expertise/clinical-monitoring/ (existing page content, revised)
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Case Studies
What this looks like in practice
Related insights
All insights →Regulations & standards considered
- ICH E6(R2) (Good Clinical Practice)
- ICH E6(R3) (Good Clinical Practice)
- EU 536/2014 (Clinical Trials Regulation, CTR)
- EU 2017/745 (MDR)
- EU 2017/746 (IVDR)
- ISO 14155:2020 (Clinical investigation of medical devices)
Related topics
Clinical Compliance →
The overarching GCP framework of audits, TMF management and inspection readiness
Good Clinical Practice (GCP) →
The foundations under ICH E6 on which monitoring builds
Clinical Project Management →
Operational trial management into which monitoring is embedded
CRO Support →
Steering and oversight of delegated monitoring services
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