AE narratives where every clinical detail must trace to the listing.
Standard-template narratives — Patient ID, AE Description, History, Study Drug, Clinical Course, Causality, Summary — each section wired to the required source types.
Every statement in the draft links to its source, such as AE listing 16.2.7, so the reviewer checks it in place.
A safety narrative is a short written account of a serious adverse event — relevant history, the event with onset and duration, concomitant medications, treatment and outcome — assembled from the AE, concomitant medication, medical history and laboratory datasets. Causality, expectedness and seriousness are clinical judgements and belong to the investigator and medical reviewer.
Outcomes you can expect
- Structured AE narratives
- Source-required sections
- CSR appendix passthrough
Safety Narrative Writing is delivered by our clinical services practice. Where it saves time, the team uses our products: GxP Copilot for validation lifecycle work and TraceDraft for clinical documentation.
Explore related capabilities: Medical Writing Services, Clinical Study Report (CSR) Authoring, Protocol & Protocol Amendment Writing, Clinical Documentation Services.
What a Complete Safety Narrative Requires
Individual adverse event narratives are required in clinical study reports for all serious adverse events, and in some cases for non-serious events of regulatory interest. ICH E3 specifies the required elements: patient identifier, age, sex, weight; diagnosis; medical history; study treatment (dose, dates, duration); concomitant medications; temporal relationship of the AE to study treatment; clinical course of the AE including treatment for the AE; laboratory data relevant to the AE; investigator's causality assessment; outcome; and sponsor's causality assessment where it differs from the investigator's. Each element must be sourced from the appropriate case report form or AE listing field.
The quality standard for safety narratives is traceability: every clinical fact in the narrative must trace to a specific source — the AE listing, the concomitant medication listing, the patient demographic listing, the laboratory data listing, or the CRF. Narratives that contain information not supported by a traceable source are a data integrity finding. Narratives that contradict the source listing data are a more serious finding that implicates the accuracy of the overall clinical database.
- 1Adverse event listing · row 14
- 2Lab dataset · ALT value, day 15
- 3Protocol · section 7.2
TraceDraft Safety Narrative Generation
TraceDraft generates structured first-draft narratives from the SAS AE and concomitant medication datasets using a configurable template that matches the sponsor's narrative format requirements. Each narrative section is populated from the corresponding source data field, with an explicit source citation embedded in the generated draft. The author receives a document where the data is already populated and sourced — they focus on clinical interpretation (causality assessment language, temporal relationship assessment) rather than data extraction.
The generation process also performs consistency checks: does the MedDRA preferred term in the narrative match the preferred term coded in the AE listing? Does the AE start date match between the narrative and the listing? Does the concomitant medication list in the narrative include all medications listed in the concomitant medication CRF between the study entry date and the AE resolution date? These checks surface inconsistencies before the narrative enters the review cycle rather than during sponsor review or agency review.
Narrative Review and MedDRA Coding Consistency
Safety narrative review requires a medically qualified reviewer — typically a physician or clinical scientist — who can assess the causal relationship between the study drug and the adverse event, evaluate the temporal relationship, and determine whether the investigator's causality assessment is consistent with the clinical picture described in the narrative. This review is distinct from the medical writing review that checks structure and source traceability: it is a medical judgment that carries liability.
MedDRA coding consistency between the narrative and the AE listing is a specific narrative quality requirement. The preferred term, high-level term, system organ class, and MedDRA version used in the narrative must match the AE listing exactly. When safety narratives are written alongside the CSR's safety section, the MedDRA terms used in the narrative must also be consistent with how the same event is referenced in the safety section tables and text. We maintain a MedDRA coding consistency check as part of every narrative review cycle.
Sources
Primary documents referred to on this page, from their official publishers.
See it on your own system.
Bring a protocol, a TLF set or an AE listing. We show you the source-traced draft it produces.
- We reply within one business day
- We run your inputs live on the call
- You get a clear plan and scope