Recruiting

Sun Protection Interventions

Sponsor:

Northwestern University

Code:

NCT07556380

Conditions

Melanoma (Skin Cancer)

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Interventions

UV Real-Time Alerts

Track Your Sun Protection

Current Conditions

Health Coaching

Action Planning

Study Details

Brief summary:

The purpose of this study is to evaluate 5 different smartphone administered sun protection interventions that aim to reduce unprotected sun exposure in melanoma survivors. Participants are asked to wear an ultraviolet (UV) device and an activity monitor (Actigraph) to measure their daily UV exposure and track their physical activity for three separate assessment weeks and complete daily surveys. After the first assessment week, eligible participants are assigned up to 5 different sun protection interventions that are administered through a smartphone application for 8 weeks. Following 8-week use of the sun protection interventions, participants complete another assessment week. At the end of the assessment week, participants provide feedback on the design and usability of the UV device, smartphone application and each of the sun protection interventions that they experienced. One year later, participants are contacted again to complete a final assessment week.

Conditions

Melanoma (Skin Cancer)

Study ID

NCT07556380

Start date

Apr 1, 2025

Status verified date

Jul, 2026

Completion date

Sep 1, 2027

Anticipated

Primary completion date

Oct 1, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Inclusion Criteria:

  • Is able to speak, read and write in English
  • Had previous melanoma diagnosis with no melanoma treatment in the last three months
  • Has no current Melanomas or untreated skin cancer
  • Reports spending at least 15 minutes outside per day during Spring/ Summer on both weekdays and weekends
  • Owns a smartphone with access to both Bluetooth and WIFI
  • Is willing to use the UV device and Actigraph during waking hours
  • Is willing to download and use a study app
  • Is willing to actively participate in the study for up to 1 year

Exclusion Criteria:

  • Has a medical condition preventing moderate-to-vigorous physical activity (MVPA) or a doctor recommendation to avoid MVPA
  • Is currently enrolled in another study on MVPA

Study Design

Enrollment

150 participants

Anticipated

Allocation

Randomized

Intervention Model

Factorial

Primary purpose

Prevention

Interventions and Outcome Measures

Arms

experimental: Experimental Condition 1

Research participant receives the Core Components + UV Real-Time Alerts + Track Your Sun Protection + Current Conditions + Health Coaching + Action Planning

experimental: Experimental Condition 2

Research participant receives the Core Components + UV Real-Time Alerts + Track Your Sun Protection + Current Conditions + Health Coaching

experimental: Experimental Condition 3

Research participant receives the Core Components + UV Real-Time Alerts + Track Your Sun Protection + Current Conditions + Action Planning

experimental: Experimental Condition 4

Research participant receives the Core Components + UV Real-Time Alerts + Track Your Sun Protection + Current Conditions

experimental: Experimental Condition 5

Research participant receives the Core Components + UV Real-Time Alerts + Track Your Sun Protection + Health Coaching + Action Planning

experimental: Experimental Condition 6

Research participant receives the Core Components + UV Real-Time Alerts + Track Your Sun Protection + Health Coaching

experimental: Experimental Condition 7

Research participant receives the Core Components + UV Real-Time Alerts + Track Your Sun Protection + Action Planning

experimental: Experimental Condition 8

Research participant receives the Core Components + UV Real-Time Alerts + Track Your Sun Protection

experimental: Experimental Condition 9

Research participant receives the Core Components + UV Real-Time Alerts + Current Conditions + Health Coaching + Action Planning

experimental: Experimental Condition 10

Research participant receives the Core Components + UV Real-Time Alerts + Current Conditions + Health Coaching

experimental: Experimental Condition 11

Research participant receives the Core Components + UV Real-Time Alerts + Current Conditions + Action Planning

experimental: Experimental Condition 12

Research participant receives the Core Components + UV Real-Time Alerts + Current Conditions

experimental: Experimental Condition 13

Research participant receives the Core Components + UV Real-Time Alerts + Health Coaching + Action Planning

experimental: Experimental Condition 14

Research participant receives the Core Components + UV Real-Time Alerts + Health Coaching

experimental: Experimental Condition 15

Research participant receives the Core Components + UV Real-Time Alerts + Action Planning

experimental: Experimental Condition 16

Research participant receives the Core Components + UV Real-Time Alerts

experimental: Experimental Condition 17

Research participant receives the Core Components + Track Your Sun Protection + Current Conditions + Health Coaching + Action Planning

experimental: Experimental Condition 18

Research participant receives the Core Components + Track Your Sun Protection + Current Conditions + Health Coaching

experimental: Experimental Condition 19

Research participant receives the Core Components + Track Your Sun Protection + Current Conditions + Action Planning

experimental: Experimental Condition 20

Research participant receives the Core Components + Track Your Sun Protection + Current Conditions

experimental: Experimental Condition 21

Research participant receives the Core Components + Track Your Sun Protection + Health Coaching + Action Planning

experimental: Experimental Condition 22

Research participant receives the Core Components + Track Your Sun Protection + Health Coaching

experimental: Experimental Condition 23

Research participant receives the Core Components + Track Your Sun Protection + Action Planning

experimental: Experimental Condition 24

Research participant receives the Core Components + Track Your Sun Protection

experimental: Experimental Condition 25

Research participant receives the Core Components + Current Conditions + Health Coaching + Action Planning

experimental: Experimental Condition 26

Research participant receives the Core Components + Current Conditions + Health Coaching

experimental: Experimental Condition 27

Research participant receives the Core Components + Current Conditions + Action Planning

experimental: Experimental Condition 28

Research participant receives the Core Components + Current Conditions

experimental: Experimental Condition 29

Research participant receives the Core Components + Health Coaching + Action Planning

experimental: Experimental Condition 30

Research participant receives the Core Components + Health Coaching

experimental: Experimental Condition 31

Research participant receives the Core Components + Action Planning

experimental: Experimental Condition 32

Research participant receives the Core Components only

Interventions

UV Real-Time Alerts

Participants will receive text-based alerts about high-risk sun exposure as assessed by their UV device. If they are assigned this intervention, they will use a UV device.

Track Your Sun Protection

Participants report their clothing and sunscreen use on a digital avatar each time they go outdoors. If they are assigned this intervention, they will use a UV device.

Current Conditions

This displays a participant's location's UVR index and notifies them of ultraviolet radiation forecasts for different times throughout the day.

Health Coaching

Bi-weekly (four times total) a trained health coach will individually call participants to discuss progress towards sun protection goals and provide support and advice. Scheduled calls, pre-interview questions, and goals will be displayed in the app.

Action Planning

Participants will be instructed on how to set action plans for sun protection and will receive information from a mobile app about setting plans for enacting health behaviors and counteracting barriers.

Core Components

All participants receive two core components, messages and lessons. Messages delivers two helpful UV protection tips per week and lessons contains 5 UV education courses for participants to read.

Primary outcome measure

  • Feasibility: Retention Rates [ Time Frame: Intervention period (weeks 2-9) ]
  • Feasibility: Completion of Daily Assessment Week Surveys [ Time Frame: 1-week bursts at baseline, post-intervention (2 months later) and 12 months post baseline. ]
  • Feasibility: Completion of Pre-Assessment Week Surveys [ Time Frame: 1-week bursts at baseline, post-intervention (2 months later) and 12 months post baseline. ]
  • Feasibility: Weekly Device Wear [ Time Frame: 1-week bursts at baseline, post-intervention (2 months later) and 12 months post baseline. ]
  • Unprotected Sun Exposure [ Time Frame: 1-week bursts at baseline, post-intervention (2 months later), and 12 months post baseline. ]

Central Contacts and Locations

Locations

Northwestern University

Recruiting

Chicago, Illinois, United States, 60611

Contacts

Huntsman Cancer Institute at The University of Utah

Recruiting

Salt Lake City, Utah, United States, 84112

Contacts

More Information

Sponsor

Northwestern University

Last update posted

Jul 10, 2026

Last verified

Jul, 2026

Keywords

  • Wearable
  • Smartphone
  • Device
  • Melanoma
  • Physical activity
  • Cancer
  • Actigraph
  • Sun protection
  • Sunscreen
  • Goals
  • Health
  • Ultraviolet radiation

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-22. This information was provided to ClinicalTrials.gov by Northwestern University on 2026-07-10.