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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT06101251
Other study ID # 853761
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date January 25, 2024
Est. completion date August 10, 2024

Study information

Verified date January 2024
Source University of Pennsylvania
Contact Dina Abdel-Rahman
Phone 2677362206
Email dina.abdel-rahman@pennmedicine.upenn.edu
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The study team are proposing to conduct a randomized controlled trial to determine the effectiveness of focused feedback vs standard feedback and self-chosen vs assigned goals on driving behaviors targeted by behavior-based insurance apps: hard braking, fast acceleration, handheld phone use, and speeding. The interventions arms will receive feedback on their driving behaviors, tips for safe driving, and a UBI-like financial incentive. The Penn research team will use Meta advertisements to recruit for the study and determine eligibility via an online survey. Those who enroll will undergo a 6-week run-in period during which their driving trips will be monitored by a mobile app. Individuals with a sufficient number of trips during this period will be randomly assigned to one of four arms for the intervention period. Target enrollment is 1,300 participants (325 per trial arm). The power analysis assumed an attrition rate of 20% over the course of the study.


Recruitment information / eligibility

Status Recruiting
Enrollment 1300
Est. completion date August 10, 2024
Est. primary completion date June 29, 2024
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - 18 years of age or older - Has an Apple or Android smartphone (iPhone iOS 12 or later or Android OS 7 or later) - Drives at least 2 days per week - English reading ability - Passes an attention check - Provides valid email address, cell number, name, address, and date of birth Exclusion Criteria: -

Study Design


Intervention

Behavioral:
Driving Tips
Each week participants will receive a safe driving tip for one of the four behaviors via text message.
Standard Feedback
Each week participants will receive a text message showing their overall driving score (out of 100) and subscores for distraction, hard braking, fast acceleration, and speeding (all running averages). The scoreboard will indicate whether their scores have gone up, down, or stayed the same. The message will include a link to a dashboard.
Assigned Focus Area Feedback
Each week feedback will focus the participant's attention on the driving behavior with the greatest opportunity for improvement based on their baseline driving behavior. Participants will be assigned a goal for the week of a score 5 points (3 points in the case of Driver Focus) better than their baseline for that area. If they meet the goal, they will be given a new goal 5 points higher; if they fall short, they will be asked to try for the same goal again. If they improve sufficiently-or if their improvement stalls out-they will be assigned a new behavior to focus on.
Study Dashboard (Standard)
By clicking the link in the feedback text, they will be able to view a weekly dashboard that provides detailed information about their baseline, best, last, and average scores for each of the four behaviors, plus descriptions of the four behaviors.
Study Dashboard (focused)
Same as standard study dashboard, except participants will see at the top of the dashboard how well they are doing relative to their weekly goals.
UBI-like Behavioral Incentive
At the end of the 12-week intervention period, their overall driving score will be translated into a $0-$100 reward amount. For example, a participant with an overall driving score of 84 at the end of the intervention period would receive $84 in compensation.
Sef-Chosen Focus Area Feedback
Participants will be asked to select which driving behavior they want to focus on improving, and to set a goal for the week that is above their baseline score. If they meet the goal, they will be asked to set a new, higher goal; if they fall short, they will be asked to try for the same goal again. If they improve sufficiently-or if their improvement stalls out-they will be asked if they want to focus on a new behavior.

Locations

Country Name City State
United States University of Pennsylvania Philadelphia Pennsylvania

Sponsors (2)

Lead Sponsor Collaborator
University of Pennsylvania AAA Foundation for Traffic Safety

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Other Handheld phone use per hour of driving This is a composite outcome that measures the proportion of total trip time in which the driver is engaged in handheld phone call use or non-call handheld use (e.g. texting, swiping, and typing), as measured by the Way to Drive app. Several studies (e.g. Klauer, NEJM, 2014) have demonstrated the association between handheld phone use (e.g., reaching for phone, typing, swiping, dialing) and increased crash risk. This outcome is also known as the active phone use percentage. Passive phone use (e.g. phone is streaming GPS navigation directions or music without any typing, swiping, or holding of the phone) is not included in this outcome. 12 weeks of the intervention period + separate analysis of 6 week post intervention.
Other Overall riskiness metric This is a composite measure of the underlying driving metrics for the four behaviors of interest. For each behavior a z-score will be computed for each participant and take the mean of these four z-scores to get their overall riskiness. This will be done for both the intervention period and the post-intervention period. 12 weeks of the intervention period + separate analysis of 6 week post intervention.
Other Disabled SMS messaging If a participant texts "stop" or "bye" to stop receiving our intervention text messages, this could indicate unacceptability of push notification interventions. This will be measured as a binary score, where participants that text "stop" or "bye" will be marked as 1, and those that do not will be marked as 0. 18 weeks of the study (6 - week baseline; 12- week intervention period)
Other Unenrolled If a participant asks to be unenrolled, this is an even stronger indicator of unacceptability. This will be measured as a binary score, where 1 means the participant was unenrolled before the end of the intervention period, and 0 means they were not. 18 weeks of the study (6 - week baseline; 12- week intervention period)
Other Net Promoter Score (NPS) This will be derived for each arm based on a 1-item question on a scale of 0 -10, 0 bring not at all likely to recommend the program, and 10 being extremely likely. At 24 weeks.
Other 4-item acceptability scale This will be a 4-item acceptability scale administered in the exit survey. For each participant the mean of the 4 items will be calculated for an overall acceptability score ranging from 1-5 (5 is the best). At 24 weeks.
Other Intervention helpfulness. Intervention arm participants will be asked to rate the helpfulness of each of the 4 intervention components (SMS feedback, weekly dashboard, SMS tips, $100 incentive), each on a scale of 1 (not at all) to 5 (extremely), with an option to indicate they did not see or were not aware of the intervention component. At 24 weeks.
Other Hard braking events per 100 miles of driving Number of hard braking evens per 100 miles of driving 12 weeks of the intervention period + separate analysis of 6 week post intervention.
Other Minutes of speeding per hour of driving. Based on duration of speeding events detected by the app. 12 weeks of the intervention period + separate analysis of 6 week post intervention.
Other Fast acceleration events per 100 miles of driving. Number of fast acceleration events per 100 miles of driving. 12 weeks of the intervention period + separate analysis of 6 week post intervention.
Primary Overall Driving Score This is the mean of the four behavior scores for the intervention period (and, in a follow-up analysis of effect sustainability, the post-intervention period). Scores can range from 0 -100, 100 being the safest driving score. 12 weeks of the intervention period + separate analysis of 6 week post intervention.
Secondary Distraction score A proprietary CMT score based on participant phone use-especially handheld phone use-while driving on a scale of 0-100, 100 being no phone use while driving (safest). 12 weeks of the intervention period + separate analysis of 6 week post intervention.
Secondary Speeding score A proprietary CMT score based on the amount of time the participant drove over the speed limit on a scale from 0 -100, 100 being no incidences of driving over the speed limit. 12 weeks of the intervention period + separate analysis of 6 week post intervention.
Secondary Braking score A proprietary CMT score based on the frequency of a participant's hard brakes on a scale of 0-100, 100 meaning no hard brakes. 12 weeks of the intervention period + separate analysis of 6 week post intervention.
Secondary Acceleration Score A proprietary CMT score based on the frequency of a participant's fast accelerations on a scale of 0-100. 100, being no fast accelerations. 12 weeks of the intervention period + separate analysis of 6 week post intervention.
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