Physical ActivityTROLLEYNCT04940481
TROLLEY Study - TRansit Opportunities for HeaLth, Livability, Exercise and EquitY
An observational study of Physical Activity, run by University of California, San Diego at 1 site in United States.
Trial 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. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Physical Activity
- How many people
- 479 participants
- Where
- 1 siteUnited States
- Study dates
- 15 Jul 2021to 14 Jun 2025
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
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.
Who may be able to join
- 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;
Show all 11Show fewer
- 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.
Who cannot join
- 1) 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.
Trial locations and contacts
1 site in 1 country.
About this study
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).
- Conditions
- Physical Activity
- Keywords
- active travel, equity, commute mode
- Medical subject headings
- Motor Activity
What is being measured
The primary outcome is the main question the study is designed to answer.
Moderate to vigorous physical activity
Minutes
Measured: 2 years
Secondary outcomes (1)
Active commute mode
%
Measured: 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Jun 2021
- Study start15 Jul 2021
- Primary completion14 Jun 2025 (estimated)
- Study completion14 Jun 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Physical ActivityStudies of the same condition, open and under way.
- More trials run by University of California, San DiegoThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 479 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of California, San Diego
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Katie Crist, University of California, San Diego
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04940481
- Sponsor's protocol ID
- 78646
- Acronym
- TROLLEY
- Status last verified
- Oct 2024
- First submitted
- 17 Jun 2021
- Last updated
- 4 Oct 2024
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
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.
PubMed 35918683
Study at a glance
From the registry record, last updated by the sponsor on 4 Oct 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- TROLLEY Study - TRansit Opportunities for HeaLth, Livability, Exercise and EquitY
- ClinicalTrials.gov ID
- NCT04940481
- Acronym / sponsor ID
- TROLLEY / 78646
- Conditions
- Physical Activity
- Keywords
- active travel, equity, commute mode
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 479 participants (actual)
- Lead sponsor
- University of California, San DiegoUniversity, hospital or other
- Study start
- 15 Jul 2021 (actual)
- Primary completion
- 14 Jun 2025 (estimated)
- Study completion
- 14 Jun 2025 (estimated)
- First posted
- 25 Jun 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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).
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- 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.
Key inclusion criteria (11 listed)
- 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;
Key exclusion criteria (1 listed)
- 1) 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.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Moderate to vigorous physical activity
Time frame: 2 years
Minutes
1 secondary outcome
Active commute mode
Time frame: 2 years
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 4 Oct 2024.
- Background: PubMed 35918683Crist 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.
- TROLLEY study protocol paperLink provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Physical Activity, run by University of California, San Diego at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 11 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 4 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Moderate to vigorous physical activity (time frame: 2 years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04940481, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Oct 2024.