UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000060250
Receipt number R000068879
Scientific Title The diagnostic accuracy of large language models in screening citations in orthopaedic literatures
Date of disclosure of the study information 2026/01/06
Last modified on 2026/01/04 15:42:12

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Basic information

Public title

The diagnostic accuracy of large language models in screening citations in orthopaedic literatures

Acronym

ORTHOSCREEN

Scientific Title

The diagnostic accuracy of large language models in screening citations in orthopaedic literatures

Scientific Title:Acronym

ORTHOSCREEN

Region

Japan


Condition

Condition

the musculoskeletal literature

Classification by specialty

Orthopedics

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This study aims to elucidate the diagnostic accuracy, time expenditure, and associated costs of LLMs in screening citations for meta-analyses focused on hip fractures, in comparison to conventional manual screening methods.

Basic objectives2

Others

Basic objectives -Others

This study aims to elucidate time expenditure, and associated costs of LLMs in screening citations for meta-analyses focused on hip fractures, in comparison to conventional manual screening methods.

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

The primary endpoint of this study is the sensitivity and specificity of LLM screening for title and abstract screening as well as full-text screening.

Key secondary outcomes

The secondary endpoint of this study is the time and costs for LLM screening compared to manual screening.


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Ten reviewers for five SRMAs (Two main reviewers for each SRMA) will be recruited by online meeting of Japanese orthopaedic trauma association systematic review committee.The inclusion criteria for participants are as follows: (1) being a member of the systematic review committee in JOTA; (2) availability to participate in citation screening; and (3) willingness to provide informed consent.

Key exclusion criteria

We will exclude committee members who cannot give informed consent and are unavailable for citation screening.

Target sample size

10


Research contact person

Name of lead principal investigator

1st name Natsumi
Middle name
Last name Saka

Organization

Teikyo University, School of Medicine

Division name

Department of Orthopaedics

Zip code

1738606

Address

2-1-1 Kaga, Itabashi

TEL

0339641211

Email

natsumi613@gmail.com


Public contact

Name of contact person

1st name Natsumi
Middle name
Last name Saka

Organization

Teikyo University, School of Medicine

Division name

Department of Orthopaedics

Zip code

1738606

Address

Kaga2-11-1, Itabashi

TEL

0339641211

Homepage URL


Email

natsumi613@gmail.com


Sponsor or person

Institute

Teikyo University

Institute

Department

Personal name



Funding Source

Organization

Ministry of Education, Culture, Sports, Science and Technology

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Teikyo University Medical Research Ethics Committee

Address

2-1-1 Kaga, Itabashi

Tel

0339647256

Email

turb-office@teikyo-u.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW

東京都


Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2026 Year 01 Month 06 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2025 Year 11 Month 14 Day

Date of IRB

2025 Year 12 Month 01 Day

Anticipated trial start date

2026 Year 01 Month 15 Day

Last follow-up date

2027 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Search Strategy and Data Acquisition: Initially, search queries will be formulated for five Clinical Questions designated for new Systematic Reviews based on the Japanese Orthopedic Association Guidelines for Management of Hip Fractures. Literature will be retrieved from literature database as well as clinical trial registries.

Random Sampling: From the retrieved literature, 500 records will be randomly selected. This process will be conducted by the Principal Investigator using a dedicated software application.

Human Screening Protocol For the SR committee screening, two primary reviewers will independently assess the records using screening application to determine eligibility based on inclusion and exclusion criteria for each CQ. Discrepancies will be resolved by a third reviewer. Reviewers will remain blinded to each other's decisions and to the results of the Large Language Model screening described below.

LLM Screening and Time Tracking: Simultaneously, the LLM will be utilized to perform screening on the same dataset. Additionally, the time required for the human reviewers to complete the screening- automatically logged within screening application will be extracted for analysis.


Management information

Registered date

2026 Year 01 Month 04 Day

Last modified on

2026 Year 01 Month 04 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068879