How do pharma and biotech companies obtain standard-compliant clinical documents for regulatory authorities and marketing authorizations?
We prepare Clinical Study Reports, study protocols, Investigator Brochures and periodic safety reports to the standards of ICH, EMA and FDA, for regulatory submissions and marketing authorization applications. The limiting factor is rarely the writing itself, but the dependency on upstream data: a CSR can only begin once the final biometrics outputs are available. Scheduling this handover point early avoids the backlog that makes clinical documents critical ahead of submission deadlines.
- Pharma
- Biotech
- MedTech
- IVD
Overview
What challenges arise in clinical documentation?
Regulatory medical writing to ICH E3, ICH E6 and ICH E2C(R2) for regulatory submissions
Last updated: 2026-06-13
Clinical documents are time-critical and standard-bound. They depend on data from upstream functions and on submission deadlines that are non-negotiable. The four points at which documentation most frequently stalls:
- Clinical Study Reports must reflect the structure and content set out in ICH E3; deviations from the guideline trigger queries from the authority and delay the marketing authorization.
- Investigator Brochures fall out of step with the current development and safety status; without regular updates in line with ICH E6, the investigator document diverges from the actual risk profile.
- Study protocols drafted without medical writing expertise generate later protocol amendments and avoidable correction loops.
- A lack of internal capacity creates bottlenecks at exactly the moment when several documents must be completed in parallel ahead of submission deadlines.
Services
How we support you
Clinical Study Reports (CSR)
Full CSR preparation to ICH E3 with integration of biometrics outputs, clinical narratives and safety data. The deliverable is a submission-ready CSR; alternatively, review and quality assurance of an existing CSR ahead of submission.
Study Protocols & Protocol Amendments
Development of clinically robust study protocols across all phases: hypotheses, endpoints, study design and the link to the statistical analysis plan, in submission-compliant language. The deliverable is a finalized protocol including management of subsequent amendments.
Investigator Brochure & DSUR
Preparation and annual update of the Investigator Brochure to ICH E6, together with the Development Safety Update Report (DSUR) for ongoing clinical programs. The deliverable is an investigator document reconciled against the current safety status.
Periodic Safety Reports (PSUR / PBRER)
Preparation of the Periodic Benefit-Risk Evaluation Report to ICH E2C(R2), integrating field data, clinical study results and spontaneous reports into a coherent benefit-risk assessment. The deliverable is a submission-ready PBRER.
Learn more →Review & Quality Assurance
Structured review of existing clinical documents against the applicable guideline (ICH E3, ICH E6, ICH E2C(R2)) ahead of submission. The deliverable is an annotated assessment with specific corrections rather than generic comments.
How we work together
What it comes down to
Clinical documents do not come together in arbitrary order, but along a data chain. The Clinical Study Report under ICH E3 sits at the end of this chain: it can only be written cleanly once the final biometrics outputs are stable, because the narratives, results section and safety assessment build directly on these tables. Starting earlier means writing against a moving data set and producing corrections rather than progress. The study protocol, by contrast, sits at the beginning: imprecise endpoints or design descriptions propagate as later protocol amendments and bring with them subsequent alignment with the authority. And the Investigator Brochure under ICH E6 must be kept continuously in step with the current safety status, otherwise the investigator document diverges from the actual risk profile.
It is precisely at these handover points that we step in. During scoping we determine which input data must be available and when, before the first section is written - for the CSR the biometrics data lock point, for the PBRER under ICH E2C(R2) the consolidation of field data, study results and spontaneous reports. This moves the critical work to the front, to where a gap can still be closed without time pressure, rather than into the days before the submission deadline, when every additional request puts the entire plan under pressure.
Our approach
Our approach
Step
Result
Clarify scoping & data handover
Defined document scope, applicable guideline and a scheduled handover point for the input data (for example, final biometrics outputs for the CSR).
Source preparation
Verified input data and reference documents, with gaps identified before writing begins rather than during review.
Drafting
Draft prepared in line with the applicable guideline (ICH E3, ICH E6 or ICH E2C(R2)), structured for the planned submission.
Review cycles with the sponsor
Consolidated comments from medical, biometric and regulatory review brought together into an aligned version.
Finalization
Submission-ready document, internally quality-assured and reconciled against the guideline.
Common pitfalls
Where projects commonly fail
The CSR is started before the biometrics outputs are final.
If tables or analyses still change, narratives and the results section have to be rewritten; starting to write before the data is stable creates duplicate work rather than a straight path to submission.
The Investigator Brochure is not updated in sync with the safety status.
When the investigator document diverges from the actual risk profile, a gap opens up between what investigators see and what the safety data supports under ICH E6.
The study protocol is drafted without medical writing expertise.
Imprecise endpoints, hypotheses or design descriptions lead to protocol amendments that delay study start-up and require subsequent alignment with the authority.
The ICH E3 structure is only partly followed.
Missing or reordered sections lead to queries from the authority during the marketing authorization procedure; a CSR that deviates from the expected structure costs more time in review than it saves in writing.
Safety reports are started only shortly before the cut-off date.
The PBRER to ICH E2C(R2) integrates field data, study results and spontaneous reports from multiple sources; if these are not brought together in time, the data lock point becomes the bottleneck.
FAQ
Frequently asked questions
Sources
- ICH E3 - Structure and Content of Clinical Study Reports (primary text)
- ICH E6 - Good Clinical Practice (primary text)
- ICH E2C(R2) - Periodic Benefit-Risk Evaluation Report (primary text)
- ICH E2F - Development Safety Update Report (primary text)
- Source material: Writer page Medical Writing (entourage-website-writer, 2026-03-29)
- https://theentourage.de/expertise/medical-writing-services/ (existing page content, revised)
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Case Studies
What this looks like in practice
Regulations & standards considered
- ICH E3 (Structure and Content of Clinical Study Reports)
- ICH E6 (Good Clinical Practice, GCP)
- ICH E2C(R2) (Periodic Benefit-Risk Evaluation Report, PBRER)
- ICH E2F (Development Safety Update Report, DSUR)
- EMA submission standards
- FDA submission standards (NDA, BLA)
Related topics
Technical Writing →
Technical product documentation such as IFUs and dossiers, distinct from clinical documents
Clinical Affairs →
The overall clinical strategy in which the documentation is embedded
Pharmacovigilance →
Safety data as the basis for the PSUR and PBRER under ICH E2C(R2)
Clinical Project Management →
Study management that governs the handover point of the data to writing
Have a concrete project?
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info@theentourage.de
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