NCT05832008

Brief Summary

Investigators are conducting a pragmatic randomized trial testing the effectiveness of patient and clinician nudge strategies on adherence to lung cancer screening (LCS) \& diagnostic follow-up across eligible primary care clinicians \& patients. Following the trial, a subsample of patients \& clinicians will be invited to one-time semi-structured interview \& survey to identify individual \& system-level factors that may restrict or enhance the impact of strategies.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
825

participants targeted

Target at P75+ for not_applicable lung-cancer

Timeline
2mo left

Started Oct 2023

Typical duration for not_applicable lung-cancer

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress95%
Oct 2023Jun 2026

First Submitted

Initial submission to the registry

March 23, 2023

Completed
1 month until next milestone

First Posted

Study publicly available on registry

April 27, 2023

Completed
6 months until next milestone

Study Start

First participant enrolled

October 18, 2023

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 31, 2025

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2026

Expected
Last Updated

January 27, 2026

Status Verified

January 1, 2026

Enrollment Period

1.9 years

First QC Date

March 23, 2023

Last Update Submit

January 25, 2026

Conditions

Keywords

ScreeningNudgeAdherenceImplementation scienceBehavioral scienceDigital health

Outcome Measures

Primary Outcomes (2)

  • Number of completed annual LCS in patients with a negative baseline screen (Lung Imaging Reporting and Data System (Lung-RADS) 1 or 2).

    Number of completed low-dose computed tomography (LDCT) scans among adults who are due for annual screening based on evidence-based guidelines.

    Initial measurement will occur 3 months after randomization

  • Number of completed recommended diagnostic follow-up scans or procedures in patients with a positive baseline screen (Lung-RADS 3 or 4a).

    Completion of recommended diagnostic follow-up scans or procedures among adults with positive baseline LDCT scan.

    Initial measurement will occur 3 months after randomization

Secondary Outcomes (1)

  • Reach

    Initial measurement will occur 3 months after randomization

Other Outcomes (3)

  • Rate of false-positive screens

    6 months after LDCT date

  • Number of downstream imaging and diagnostic procedures

    6 months after LDCT date

  • Number of lung cancer diagnoses

    6 months after LDCT date

Study Arms (4)

Clinician Nudge + Patient Nudge

EXPERIMENTAL

An EHR-prompt (pended order) will prompt clinicians in this arm when a patient is due for lung cancer screening or diagnostic follow-up. Patients in this arm will receive messaging designed to increase awareness about the importance of annual screening and recommended follow-up

Behavioral: Patient NudgeBehavioral: Clinician Nudge

Clinician Nudge Only

EXPERIMENTAL

Clinicians in this arm will not be prompted by a pended order when a patient is due for lung cancer screening or diagnostic follow-up. Patients will receive usual care.

Behavioral: Clinician Nudge

Patient Nudge Only

EXPERIMENTAL

Patients in this arm will receive messaging designed to increase awareness about the importance of annual screening and recommended follow-up. Clinicians will receive usual care.

Behavioral: Patient Nudge

Usual care (no nudges)

NO INTERVENTION

Patients and clinicians in this arm will receive usual care.

Interventions

Patient NudgeBEHAVIORAL

Brief persuasive messaging to increase awareness about the importance of annual lung cancer screening and completion of recommended follow-up sent to patients via text message.

Clinician Nudge + Patient NudgePatient Nudge Only
Clinician NudgeBEHAVIORAL

EHR-based Prompts - an pended order and message that alerts a clinician if a patient is due for screening or diagnostic follow-up.

Clinician Nudge + Patient NudgeClinician Nudge Only

Eligibility Criteria

Age50 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Clinicians will be eligible if they:
  • are practicing primary care or specialty care physicians at a recruiting site within the University of Pennsylvania Health System;
  • care for patients who completed LCS via LDCT in 2019-2023; and
  • do not opt-out of study participation.
  • Patients will be eligible if they:
  • are eligible for LCS based on 2021 US Preventive Services Task Force (USPSTF) population guidelines (aged 50-80; smoking history of 20-pack years; smoked within the last 15 years)
  • completed LCS via LDCT in 2019-2023;
  • have not been diagnosed with lung cancer;
  • meet criteria for non-adherence;
  • remain eligible for LCS during the trial enrollment period; and
  • receive LCS care from a clinician that has not opted-out of study participation

You may not qualify if:

  • Patients will be excluded if they:
  • a) have a highly suspicious baseline LDCT (Lung-RADS 4B/X) given the presence of existing clinical pathways to ensure adherence in this group

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Pennsylvania

Philadelphia, Pennsylvania, 19104, United States

Location

MeSH Terms

Conditions

Lung NeoplasmsPatient Compliance

Condition Hierarchy (Ancestors)

Respiratory Tract NeoplasmsThoracic NeoplasmsNeoplasms by SiteNeoplasmsLung DiseasesRespiratory Tract DiseasesPatient Acceptance of Health CareTreatment Adherence and ComplianceHealth BehaviorBehavior

Study Officials

  • Katharine Rendle, PhD,MSW,MPH

    University of Pennsylvania

    PRINCIPAL INVESTIGATOR
  • Anil Vachani, MD

    University of Pennsylvania

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
FACTORIAL
Model Details: At the start of the trial, clinicians who do not opt-out will be randomized to the intervention (clinician nudge) or control arm (no clinician nudge). Eligible patients will be randomized, stratified by clinician, to either the intervention (patient nudge) or control group (no patient nudge).
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PI

Study Record Dates

First Submitted

March 23, 2023

First Posted

April 27, 2023

Study Start

October 18, 2023

Primary Completion

August 31, 2025

Study Completion (Estimated)

June 1, 2026

Last Updated

January 27, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations