NCT05588895

Brief Summary

This is a prospective randomized controlled trial assessing the impact of notifying patients and their clinicians of an incidental finding of coronary artery calcification (CAC) indicating increased cardiovascular risk. Patients will be identified through completed radiology orders for non-gated, non-contrast chest CT in the appropriate clinical context and then will have an EHR screen for inclusion criteria. The presence of CAC will be confirmed by a radiologist. Eligible patients will be randomized to CAC notification or usual care using a 1:1 stratified block randomization method based on baseline ASCVD.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
202

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2024

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

October 17, 2022

Completed
3 days until next milestone

First Posted

Study publicly available on registry

October 20, 2022

Completed
1.2 years until next milestone

Study Start

First participant enrolled

January 8, 2024

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 15, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 15, 2026

Completed
Last Updated

February 23, 2026

Status Verified

February 1, 2026

Enrollment Period

2 years

First QC Date

October 17, 2022

Last Update Submit

February 19, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Number of new statin prescriptions

    6-month new statin prescription rate

    Baseline through Month 6

Secondary Outcomes (4)

  • Number of participants using statin medication

    Month 6

  • Change in Low-density lipoprotein (LDL) cholesterol

    Baseline and Month 6

  • Change in 10-Year Atherosclerotic Cardiovascular Disease (ASCVD) Pooled Cohort Equation

    Baseline and Month 6

  • Number of events requiring primary care intervention, cardiology referrals, or cardiac testing

    Baseline through Month 6

Study Arms (2)

Notification

EXPERIMENTAL

The notification arm will have its CT scans interpreted and reported according to standard clinical practice. A standardized notification message using the EHR will be sent to the patient's Stanford affiliated non-EP cardiologist, if present, or the primary care clinician if there is no non-EP cardiologist. After a two week delay from notifying the patient's non-EP cardiologist or PCP, a standardized notification message will be sent to the patient. The message will include an image of the CAC from the chest CT. All communications will be signed by the Principal Investigator. Any treatment decisions will be made by the patient and their clinician.

Other: Notification

Usual Care

NO INTERVENTION

The usual care arm will have its CT scans interpreted and reported according to standard clinical practice. This may mention the presence of CAC in the official radiology imaging report, per usual practice. The usual care arm will not receive any notification beyond this standard of care. We intend to notify patients in the usual care arm when study ends, if we determine that notification is effective at increasing statin rates.

Interventions

For patients randomized to notification, the affiliated non-EP cardiologist, if present, or if patient does not have one, the PCP will be notified and will receive an electronic health record (EHR) message notifying them of the presence of CAC (with images) and the ACC/AHA guideline recommendation to consider starting statin therapy. Simultaneously, the patient will be notified via a MyHealth message describing the presence of CAC with personalized scan images, its significance, and the recommendation that statin therapy should be considered. For the notification arm, we will check for either statin prescription or a documented discussion in the EHR at 2 months. For those not prescribed a statin and without a documented discussion in Epic at 2 months follow-up, we will send a repeat notification to their home address and to their affiliated clinician.

Notification

Eligibility Criteria

Age18 Years - 84 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18 and above and \<85
  • Non-gated chest CT with CAC
  • An encounter after July 1, 2021 with a Stanford-affiliated clinician from one of the following clinics:
  • Stanford Internal Medicine (includes University affiliated clinics)
  • Stanford Family Medicine (includes University affiliated clinics)
  • Non-EP cardiologist

You may not qualify if:

  • Advanced or poor-prognostic cancer
  • No active primary care or cardiology care at Stanford Health Care
  • Primary language other than English, Spanish, Vietnamese, Cantonese, or Mandarin
  • Baseline statin or non-statin lipid lowering therapy
  • Allergy to statin medication or identification of statin-associated muscle symptom

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Stanford University

Stanford, California, 94305, United States

Location

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor of Medicine (Cardiovascular Medicine)

Study Record Dates

First Submitted

October 17, 2022

First Posted

October 20, 2022

Study Start

January 8, 2024

Primary Completion

January 15, 2026

Study Completion

January 15, 2026

Last Updated

February 23, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Locations