PARHAF, a human-authored corpus of clinical reports for fictitious patients in French

Fuente: arXiv
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Main Authors: Tannier, Xavier, Abbara, Salam, Flicoteaux, Rémi, Khalil, Youness, Névéol, Aurélie, Zweigenbaum, Pierre, Bacry, Emmanuel
Format: Preprint
Published: 2026
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author Tannier, Xavier
Abbara, Salam
Flicoteaux, Rémi
Khalil, Youness
Névéol, Aurélie
Zweigenbaum, Pierre
Bacry, Emmanuel
author_facet Tannier, Xavier
Abbara, Salam
Flicoteaux, Rémi
Khalil, Youness
Névéol, Aurélie
Zweigenbaum, Pierre
Bacry, Emmanuel
contents The development of clinical natural language processing (NLP) systems is severely hampered by the sensitive nature of medical records, which restricts data sharing under stringent privacy regulations, particularly in France and the broader European Union. To address this gap, we introduce PARHAF, a large open-source corpus of clinical documents in French. PARHAF comprises expert-authored clinical reports describing realistic yet entirely fictitious patient cases, making it anonymous and freely shareable by design. The corpus was developed using a structured protocol that combined clinician expertise with epidemiological guidance from the French National Health Data System (SNDS), ensuring broad clinical coverage. A total of 104 medical residents across 18 specialties authored and peer-reviewed the reports following predefined clinical scenarios and document templates. The corpus contains 7394 clinical reports covering 5009 patient cases across a wide range of medical and surgical specialties. It includes a general-purpose component designed to approximate real-world hospitalization distributions, and four specialized subsets that support information-extraction use cases in oncology, infectious diseases, and diagnostic coding. Documents are released under a CC-BY open license, with a portion temporarily embargoed to enable future benchmarking under controlled conditions. PARHAF provides a valuable resource for training and evaluating French clinical language models in a fully privacy-preserving setting, and establishes a replicable methodology for building shareable synthetic clinical corpora in other languages and health systems.
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institution arXiv
publishDate 2026
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spellingShingle PARHAF, a human-authored corpus of clinical reports for fictitious patients in French
Tannier, Xavier
Abbara, Salam
Flicoteaux, Rémi
Khalil, Youness
Névéol, Aurélie
Zweigenbaum, Pierre
Bacry, Emmanuel
Computation and Language
The development of clinical natural language processing (NLP) systems is severely hampered by the sensitive nature of medical records, which restricts data sharing under stringent privacy regulations, particularly in France and the broader European Union. To address this gap, we introduce PARHAF, a large open-source corpus of clinical documents in French. PARHAF comprises expert-authored clinical reports describing realistic yet entirely fictitious patient cases, making it anonymous and freely shareable by design. The corpus was developed using a structured protocol that combined clinician expertise with epidemiological guidance from the French National Health Data System (SNDS), ensuring broad clinical coverage. A total of 104 medical residents across 18 specialties authored and peer-reviewed the reports following predefined clinical scenarios and document templates. The corpus contains 7394 clinical reports covering 5009 patient cases across a wide range of medical and surgical specialties. It includes a general-purpose component designed to approximate real-world hospitalization distributions, and four specialized subsets that support information-extraction use cases in oncology, infectious diseases, and diagnostic coding. Documents are released under a CC-BY open license, with a portion temporarily embargoed to enable future benchmarking under controlled conditions. PARHAF provides a valuable resource for training and evaluating French clinical language models in a fully privacy-preserving setting, and establishes a replicable methodology for building shareable synthetic clinical corpora in other languages and health systems.
title PARHAF, a human-authored corpus of clinical reports for fictitious patients in French
topic Computation and Language
url https://arxiv.org/abs/2603.20494