An Evaluation of Epic EHR AI Outpatient Chart Summarization
Epic Generative Artificial Intelligence Chart Summarization Tool to Reduce Ambulatory Provider Cognitive Task Load: A Randomized Controlled Trial
1 other identifier
interventional
284
1 country
1
Brief Summary
This is a RCT of 284 outpatient physicians at a large academic health system, randomized 1:1 to an electronic health record (EHR) produced generative AI outpatient chart summarization tool or a usual-care control group. The 90 day study will observe the effects of the tool prior to system-wide roll out of the tool.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Feb 2026
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 22, 2026
CompletedStudy Start
First participant enrolled
February 23, 2026
CompletedFirst Posted
Study publicly available on registry
February 27, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2026
CompletedMarch 6, 2026
March 1, 2026
2 months
February 22, 2026
March 4, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change from Baseline Physician Task Load
Physician task load adapted from the NASA Task Load Index (TLX), a validated tool for assessing EHR-related cognitive task load in four sub-scales (mental demand, temporal demand, physical demand, and effort). This outcome is adapted to capture the task of pre-charting, defined for this study as the practice of reviewing patient information in the EHR before a patient visit to prepare for the encounter. Each sub-scale is rated from 0 (low) to 100 (high) and is aggregated to a 0-400 point scale. No patient level information will be collected for this outcome measure.
Baseline and 90 days after initial exposure to the intervention
Secondary Outcomes (10)
Change in Modified Total Chart Time Per Encounter
Baseline, after 60 days of exposure to the intervention, and after 90 days of exposure to the intervention.
Change from Baseline Professional Fulfillment Index Score
Baseline and 90 days after initial exposure to the intervention
Change from Baseline Self-Reported Pre-Charting Effectiveness
Baseline and 90 days from initial exposure to the intervention
Provider Satisfaction Scores
90 days after initial exposure to the intervention
System Usability Scale
90 days from initial exposure to the intervention
- +5 more secondary outcomes
Study Arms (2)
Intervention Arm
EXPERIMENTALParticipants in this arm will have access to Epic's outpatient chart summarization tool and will continue their usual clinical practice, supported by the generative AI tool, which is integrated within the EHR. The tool provides a summary for providers and does not provide clinical decision support. They have access to an educational module and tipsheet, and weekly town halls to help with any questions for the first three weeks of the trial.
Care As Usual
NO INTERVENTIONParticipants in this arm will not have access to chart summarization tool and will continue their usual clinical practice.
Interventions
Epic's generative AI chart summarization tool summarizes a subset of a patient's notes. Use of the tool is optional and intended solely to provide a summary for providers and does not provide clinical decision support. The system automatically selects recent notes or a provider can manually select specific notes of interest. The number of notes summarized is limited by the character constraints of the EHR, 24,000 English characters or 30 notes. The system uses AI to generate a short summary of relevant information. The summaries are meant to be used as a tool to aid providers and are not intended to be placed in clinical notes. The summaries created are currently not stored in the patient's chart.
Eligibility Criteria
You may qualify if:
- Ambulatory care providers within the UCLA Health system including physicians and advanced practice providers (APPs), such as nurse practitioners and physician assistants with at least one half-day clinic session per week.
- Providers complete baseline pre-survey
You may not qualify if:
- Trainee providers (e.g., residents, medical students), and psychologists
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of California, Los Angeles
Los Angeles, California, 90095, United States
Related Publications (6)
Carolus, A., Koch, M. J., Straka, S., Latoschik, M. E., & Wienrich, C. (2023). MAILS-Meta AI literacy scale: Development and testing of an AI literacy questionnaire based on well-founded competency models and psychological change-and meta-competencies. Computers in Human Behavior: Artificial Humans, 1(2), 100014.
BACKGROUNDKoch MJ, Carolus A, Wienrich C, Latoschik ME. Meta AI literacy scale: Further validation and development of a short version. Heliyon. 2024 Oct 22;10(21):e39686. doi: 10.1016/j.heliyon.2024.e39686. eCollection 2024 Nov 15.
PMID: 39524814BACKGROUNDQuigley DD, Elliott MN, Qureshi N, Predmore Z, Hays RD. Associations of the Consumer Assessment of Healthcare Providers and Systems (CAHPS) Clinician and Group Survey Scores with Interventions and Site, Provider, and Patient Factors: A Systematic Review of the Evidence. J Patient Exp. 2024 Oct 13;11:23743735241283204. doi: 10.1177/23743735241283204. eCollection 2024.
PMID: 39403289BACKGROUNDMelnick ER, Harry E, Sinsky CA, Dyrbye LN, Wang H, Trockel MT, West CP, Shanafelt T. Perceived Electronic Health Record Usability as a Predictor of Task Load and Burnout Among US Physicians: Mediation Analysis. J Med Internet Res. 2020 Dec 22;22(12):e23382. doi: 10.2196/23382.
PMID: 33289493BACKGROUNDTrockel M, Bohman B, Lesure E, Hamidi MS, Welle D, Roberts L, Shanafelt T. A Brief Instrument to Assess Both Burnout and Professional Fulfillment in Physicians: Reliability and Validity, Including Correlation with Self-Reported Medical Errors, in a Sample of Resident and Practicing Physicians. Acad Psychiatry. 2018 Feb;42(1):11-24. doi: 10.1007/s40596-017-0849-3. Epub 2017 Dec 1.
PMID: 29196982BACKGROUNDLukac PJ, Turner W, Vangala S, Chin AT, Khalili J, Shih YT, Sarkisian C, Cheng EM, Mafi JN. Ambient AI Scribes in Clinical Practice: A Randomized Trial. NEJM AI. 2025 Dec;2(12):10.1056/aioa2501000. doi: 10.1056/aioa2501000. Epub 2025 Nov 26.
PMID: 41497288BACKGROUND
Study Officials
- PRINCIPAL INVESTIGATOR
John N Mafi, MD, MPH
Division of General Internal Medicine & Health Services Research, David Geffen School of Medicine at the University of California, Los Angeles
- PRINCIPAL INVESTIGATOR
Paul J Lukac, MD, MBA, MS
UCLA Health Information Technology, UCLA Health
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- INVESTIGATOR
- Purpose
- HEALTH SERVICES RESEARCH
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor of Medicine
Study Record Dates
First Submitted
February 22, 2026
First Posted
February 27, 2026
Study Start
February 23, 2026
Primary Completion
May 1, 2026
Study Completion
May 1, 2026
Last Updated
March 6, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share