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Physician Reasoning on Diagnostic Cases With Large Language Models

Diagnostic Reasoning With Large Language Model Chat Bots

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06157944
Enrollment
50
Registered
2023-12-06
Start date
2023-11-29
Completion date
2023-12-30
Last updated
2024-02-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diagnosis

Keywords

Computer-assisted diagnosis, Large language models, clinical reasoning

Brief summary

This study will evaluate the effect of providing access to GPT-4, a large language model, compared to traditional diagnostic decision support tools on performance on case-based diagnostic reasoning tasks.

Detailed description

Artificial intelligence (AI) technologies, specifically advanced large language models like OpenAI's ChatGPT, have the potential to improve medical decision-making. Although ChatGPT-4 was not developed for its use in medical-specific applications, it has demonstrated promise in various healthcare contexts, including medical note-writing, addressing patient inquiries, and facilitating medical consultation. However, little is known about how ChatGPT augments the clinical reasoning abilities of clinicians. Clinical reasoning is a complex process involving pattern recognition, knowledge application, and probabilistic reasoning. Integrating AI tools like ChatGPT-4 into physician workflows could potentially help reduce clinician workload and decrease the likelihood of missed diagnoses. However, ChatGPT-4 was not developed for the purpose of clinical reasoning nor has it been validated for this purpose. Further, it may be subject to disinformation, including convincing confabulations that may mislead clinicians. If clinicians misuse this tool, it may not improve diagnostic reasoning and could even cause harm. Therefore, it is important to study how clinicians use large language models to augment clinical reasoning prior to routine incorporation into patient care. In this study, we will randomize participants to answer diagnostic cases with or without access to ChatGPT-4. The participants will be asked to give three differential diagnoses for each case, with supporting and opposing findings for each diagnosis. Additionally they will be asked to provide their top diagnosis along with next diagnostic steps. Answers will be graded by independent reviewers blinded to treatment assignment.

Interventions

OTHERGPT-4

OpenAI's GPT-4 large language model with chat interface.

Sponsors

Beth Israel Deaconess Medical Center
CollaboratorOTHER
University of Minnesota
CollaboratorOTHER
Stanford University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
SINGLE (Outcomes Assessor)

Masking description

The grading of responses will be performed by assessors blinded to participant identity and treatment assignment.

Intervention model description

The trial will be designed as a randomized, two-arm, single-blind parallel group study.

Eligibility

Sex/Gender
ALL
Healthy volunteers
Yes

Inclusion criteria

* Participants must be licensed physicians and have completed at least post-graduate year 2 (PGY2) of medical training. * Training in Internal medicine, family medicine, or emergency medicine.

Exclusion criteria

* Not currently practicing clinically.

Design outcomes

Primary

MeasureTime frameDescription
Diagnostic reasoningDuring evaluationThe primary outcome will be the percent correct (range: 0 to 100) for each case. For each case, participants will be asked for three top diagnoses and findings from the case that support that diagnosis and oppose that diagnosis. Participants will receive 1 point for each plausible diagnosis. Findings supporting the diagnosis and findings opposing the diagnosis will also be graded based on correctness, with 1 point for partially correct and 2 points for completely correct responses. Participants will then be asked to name their top diagnosis, earning one point for a reasonable response and two points for the most correct response. Finally participants will be asked to name up to 3 next steps to further evaluate the patient with one point awarded for a partially correct response and two points for a completely correct response. The primary outcome will be compared on the case-level by the randomized groups.

Secondary

MeasureTime frameDescription
Time Spent on DiagnosisDuring evaluationWe will compare how much time (in minutes) participants spend per case between the two study arms.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 5, 2026