Enhanced pre-recruitment framework for clinical trial questionnaires through the integration of large language models and knowledge graphs

Abstract The recruitment of participants for clinical trials has traditionally been a passive and challenging process, leading to difficulties in acquiring a sufficient number of qualified participants in a timely manner. This issue has impeded advancements in medical research. However, recent years...

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Main Authors: Chen Zihang, Liu Liang, Su Qianmin, Cheng Gaoyi, Huang Jihan, Li Ying
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-025-11876-0
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author Chen Zihang
Liu Liang
Su Qianmin
Cheng Gaoyi
Huang Jihan
Li Ying
author_facet Chen Zihang
Liu Liang
Su Qianmin
Cheng Gaoyi
Huang Jihan
Li Ying
author_sort Chen Zihang
collection DOAJ
description Abstract The recruitment of participants for clinical trials has traditionally been a passive and challenging process, leading to difficulties in acquiring a sufficient number of qualified participants in a timely manner. This issue has impeded advancements in medical research. However, recent years have seen the evolution of knowledge graphs and the introduction of large language models (LLMs), providing innovative approaches for the pre-screening and recruitment phases of clinical trials. These developments promise enhanced recruitment efficiency and increased participant involvement. To ensure the safety and efficacy of clinical trials, it is crucial to establish precise inclusion and exclusion criteria for participant selection. This paper introduces a method to optimize the pre-recruitment stage by utilizing these criteria in conjunction with the cutting-edge capabilities of knowledge graphs and LLMs. The enhanced strategy includes the automated generation of questionnaires, algorithmic evaluation of eligibility, supplemental query-response functions, and a broader participant screening reach. The application of this framework yielded a detailed clinical trial recruitment questionnaire that accurately encompasses all necessary criteria. Its JSON output is noteworthy for its precision and reliability, achieving an impressive 90% accuracy rate in summarizing patient responses. Additionally, the questionnaire’s ancillary question-and-answer feature complies with stringent legal and ethical standards, meeting the requirements for practical deployment. This study validates the practicality and technological soundness of the presented approach. Utilizing this framework is expected to enhance the efficiency of trial recruitment and the level of patient participation.
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institution Kabale University
issn 2045-2322
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spelling doaj-art-1208b08018cc44919d86facbae7812e12025-08-20T04:03:07ZengNature PortfolioScientific Reports2045-23222025-07-0115111010.1038/s41598-025-11876-0Enhanced pre-recruitment framework for clinical trial questionnaires through the integration of large language models and knowledge graphsChen Zihang0Liu Liang1Su Qianmin2Cheng Gaoyi3Huang Jihan4Li Ying5School of Electronic and Electrical Engineering, Shanghai University of Engineering ScienceInstitute of Clinical Science, Zhongshan Hospital, Fudan UniversitySchool of Electronic and Electrical Engineering, Shanghai University of Engineering ScienceSchool of Electronic and Electrical Engineering, Shanghai University of Engineering ScienceCenter for Drug Clinical Research, Shanghai University of Traditional Chinese MedicineDepartment of Hepatology Longhua Hospital, Shanghai University of Traditional Chinese MedicineAbstract The recruitment of participants for clinical trials has traditionally been a passive and challenging process, leading to difficulties in acquiring a sufficient number of qualified participants in a timely manner. This issue has impeded advancements in medical research. However, recent years have seen the evolution of knowledge graphs and the introduction of large language models (LLMs), providing innovative approaches for the pre-screening and recruitment phases of clinical trials. These developments promise enhanced recruitment efficiency and increased participant involvement. To ensure the safety and efficacy of clinical trials, it is crucial to establish precise inclusion and exclusion criteria for participant selection. This paper introduces a method to optimize the pre-recruitment stage by utilizing these criteria in conjunction with the cutting-edge capabilities of knowledge graphs and LLMs. The enhanced strategy includes the automated generation of questionnaires, algorithmic evaluation of eligibility, supplemental query-response functions, and a broader participant screening reach. The application of this framework yielded a detailed clinical trial recruitment questionnaire that accurately encompasses all necessary criteria. Its JSON output is noteworthy for its precision and reliability, achieving an impressive 90% accuracy rate in summarizing patient responses. Additionally, the questionnaire’s ancillary question-and-answer feature complies with stringent legal and ethical standards, meeting the requirements for practical deployment. This study validates the practicality and technological soundness of the presented approach. Utilizing this framework is expected to enhance the efficiency of trial recruitment and the level of patient participation.https://doi.org/10.1038/s41598-025-11876-0Large Language ModelKnowledge GraphQuestionnaireClinical TrialInclusion and Exclusion Criteria
spellingShingle Chen Zihang
Liu Liang
Su Qianmin
Cheng Gaoyi
Huang Jihan
Li Ying
Enhanced pre-recruitment framework for clinical trial questionnaires through the integration of large language models and knowledge graphs
Scientific Reports
Large Language Model
Knowledge Graph
Questionnaire
Clinical Trial
Inclusion and Exclusion Criteria
title Enhanced pre-recruitment framework for clinical trial questionnaires through the integration of large language models and knowledge graphs
title_full Enhanced pre-recruitment framework for clinical trial questionnaires through the integration of large language models and knowledge graphs
title_fullStr Enhanced pre-recruitment framework for clinical trial questionnaires through the integration of large language models and knowledge graphs
title_full_unstemmed Enhanced pre-recruitment framework for clinical trial questionnaires through the integration of large language models and knowledge graphs
title_short Enhanced pre-recruitment framework for clinical trial questionnaires through the integration of large language models and knowledge graphs
title_sort enhanced pre recruitment framework for clinical trial questionnaires through the integration of large language models and knowledge graphs
topic Large Language Model
Knowledge Graph
Questionnaire
Clinical Trial
Inclusion and Exclusion Criteria
url https://doi.org/10.1038/s41598-025-11876-0
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