NCT04940481

Brief Summary

The researchers are evaluating longitudinal changes in multiple health, economic, and environmental outcomes over a 3-year COVID recovery period and in the context of a new light rail transit (LRT) line, called the Mid-Coast Trolley, among 465 UC San Diego (UCSD) staff. The primary aim is to evaluate change in objectively measured total and moderate to vigorous physical activity (MVPA), travel mode, and vehicle miles traveled (VMT).

Trial Health

55
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
479

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jul 2021

Longer than P75 for all trials

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

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 17, 2021

Completed
8 days until next milestone

First Posted

Study publicly available on registry

June 25, 2021

Completed
20 days until next milestone

Study Start

First participant enrolled

July 15, 2021

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 14, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 14, 2025

Completed
Last Updated

October 4, 2024

Status Verified

October 1, 2024

Enrollment Period

3.9 years

First QC Date

June 17, 2021

Last Update Submit

October 2, 2024

Conditions

Keywords

active travel, equity, commute mode

Outcome Measures

Primary Outcomes (1)

  • Moderate to vigorous physical activity

    Minutes

    2 years

Secondary Outcomes (1)

  • Active commute mode

    2 years

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

We will study UCSD staff. We will aim to recruit 50% from people of color, and 50% low income (\<80% Area Median Income), 50% female, and 50% living within 1 mile of a transit stop that connects to the Mid-Coast Trolley.

You may qualify if:

  • are 18 years of age or older;
  • are a full or part-time employee at UC San Diego
  • Prior to COVID-19, you used to commute to La Jolla at least 2 days per week;
  • have lived in the neighborhood selected for the study for at least one year;
  • are able to walk without human assistance;
  • are comfortable reading and writing in English or Spanish;
  • have a reliable phone where you can be reached;
  • spend most of your time in San Diego County;
  • don't plan on moving in the next year;
  • are able to give informed consent and comply with the protocol;
  • are willing to complete all assessments and wear all devices for 7 days at 3 different time points in the next 2 years.

You may not qualify if:

  • \) pregnant, 2) mental state that would preclude understanding the protocol, 3) medical condition that would affect physical activity, 4) taking part in another physical activity related research study, and 5) live or regularly travel outside of San Diego County.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UC San Diego

La Jolla, California, 92093, United States

Location

Related Publications (1)

  • Crist K, Benmarhnia T, Frank LD, Song D, Zunshine E, Sallis JF. The TROLLEY Study: assessing travel, health, and equity impacts of a new light rail transit investment during the COVID-19 pandemic. BMC Public Health. 2022 Aug 2;22(1):1475. doi: 10.1186/s12889-022-13834-1.

    PMID: 35918683BACKGROUND

Related Links

MeSH Terms

Conditions

Motor Activity

Condition Hierarchy (Ancestors)

Behavior

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Project Scientist

Study Record Dates

First Submitted

June 17, 2021

First Posted

June 25, 2021

Study Start

July 15, 2021

Primary Completion

June 14, 2025

Study Completion

June 14, 2025

Last Updated

October 4, 2024

Record last verified: 2024-10

Locations