Chronotypes and HealthNot RequiredNCT07410585
Testing the Effectiveness of an Intervention That Aligns Circadian Rhythm With Daily Activities on Student Flourishing
A study testing Use of Owaves App in people with Chronotypes and Health, run by University of California, San Diego at 1 site in United States.
Trial summary
Previous studies have examined whether circadian rhythm tracking improves well-being, with some evidence suggesting that aligning daily activities with one's natural chronotype (a person's natural preference for being alert and sleep), enhances well-being and productivity. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Chronotypes and Health
- What is being tested?
- Use of Owaves App
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 400 participants
- Where
- 1 siteUnited States
- Study dates
- 5 Jan 2026to 31 Dec 2026
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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
Who may be able to join
- Currently an undergraduate students from University of California, San Diego (UCSD)
- Age 18 or older
- has access to a device to answer Qualtrics questions
- has access to a device that can download the MyBodyClock App (Apple iPhone or Apple iPad)
Who cannot join
- Participants who are under the age of 18, are not undergraduate students at UCSD, or do not have access to the Qualtrics question platform and/or the MyBodyClock App
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United States1 site, 1 recruiting
- Recruiting
UC San Diego
La Jolla, California, 92037
Karen Dobkins, PhD, 6198468152, KDOBKINS@UCSD.EDU
About this study
Previous studies have examined whether circadian rhythm tracking improves well-being, with some evidence suggesting that aligning daily activities with one's natural chronotype (a person's natural preference for being alert and sleep), enhances well-being and productivity. However, the current research lacks intervention-based designs like real-time tracking or behavioral alignment tools. Here, the investigators aim to investigate if an active intervention, involving the usage of an app tracking circadian rhythms and making recommendations based on one's circadian rhythm over seven weeks, improves students' flourishing.
Read the detailed description
The aim of this clinical study is to test the effectiveness of an intervention (through an app called Owaves: MyBodyClock that will be provided free of cost) designed to help students align daily activities in accordance with their circadian rhythm. The questions include:
- Does the intervention improve both trait and state measures of student flourishing, including general well-being (i.e., happiness), focus, and energy levels?
- Does the intervention alter the types of activities participants engage in?
- Does the intervention impact the likelihood of seeking resources for physical and mental health?
- Conditions
- Chronotypes and Health
- Being tested
- Use of Owaves App
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Use of Owaves AppBehavioural
Students use the Owaves app for 7 weeks and psychological measures are obatined pre and post to determine the effectiveness of the App
| Study group | Role | What they receive |
|---|---|---|
| Intervention Group who uses OWAVES App for 7 weeks | Experimental | Intervention Group who uses OWAVES App for 7 weeks Receives: Behavioral: Use of Owaves App |
| Control group who does not use the OWAVES app | No intervention | Not described |
What is being measured
The primary outcome is the main question the study is designed to answer.
Trait Happiness (Subjective Happiness Scale)
Subjective Happiness Scale (SHS) Trait questionnaire. The SHS is a 4-item scale of global subjective happiness. It is scored on a 7-point Likert scale where 1 = less happy to 7 = more happy. Total scores range from 4 to 28 where higher scores indicate greater subjective happiness.
Measured: Baseline (Weeks 1/2) and Weeks 8/9.
Focus Trait (Barkley Adult ADHD Rating Scale (Inattention Subscale) and Academic Time Management and Procrastination Measure)
The Barkley Adult ADHD Rating Scale is a self-report questionnaire with 18-items which rates the frequency of ADHD symptoms and behaviors. Each item is scored on a 4-point scale ranging from 1 = never or rarely, to 4 = very often. A lower score indicates less severe ADHD symptoms and behaviors.
Measured: Baseline (Weeks 1/2) and Weeks 8/9.
Energy Trait (Subjective Vitality Scale)
Subjective Vitality Scale (SVS) is a 6 - item self-report questionnaire to measure the subjective vitality of a participant. It is scored on a 7-point Likert scale where 1 = completely disagree to 7 = completely agree. Higher scores indicates higher level of subjective vitality.
Measured: Baseline (Weeks 1/2) and Weeks 8/9.
Mindfulness Trait (Five Facet Mindfulness Questionnaire (FFMQ))
The Five Facet Mindfulness Questionnaire (FFMQ) short form is a 24-item questionnaire that measures mindfulness in participants. Items are scored on a 5-point Likert-type scale ranging from 1 = never/very rarely true to 5 = very often/always true. Higher scores indicate greater levels of mindfulness.
Measured: Baseline (Weeks 1/2) and Weeks 8/9.
Secondary outcomes (1)
States
State measures will be obtained within three days of the trait assessments (also in weeks 1/2 and 8/9) using the Daily Reconstruction Method (DRM), in which participants are asked to reconstruct their previous day into episodes and retrospectively report on state variables during each episode (see Raynes \& Dobkins, 2025). The state measures will match the trait measures and ask about:
- Happiness (State)
- Focus (State)
- Energy (State)
- Mindfulness (State)
Measured: 7 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Feb 2026
- Study start5 Jan 2026
- Primary completion31 May 2026 (estimated)
- Study completion31 Dec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Chronotypes and HealthStudies 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 400 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of California, San Diego
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Karen Dobkins, University of California, San Diego
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07410585
- Sponsor's protocol ID
- IRB: #813010
- Acronym
- Not Required
- Status last verified
- Feb 2026
- First submitted
- 16 Jan 2026
- Last updated
- 13 Feb 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 13 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Testing the Effectiveness of an Intervention That Aligns Circadian Rhythm With Daily Activities on Student Flourishing
- ClinicalTrials.gov ID
- NCT07410585
- Acronym / sponsor ID
- Not Required / IRB: #813010
- Conditions
- Chronotypes and Health
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 400 participants (estimated)
- Lead sponsor
- University of California, San DiegoUniversity, hospital or other
- Study start
- 5 Jan 2026 (actual)
- Primary completion
- 31 May 2026 (estimated)
- Study completion
- 31 Dec 2026 (estimated)
- First posted
- 13 Feb 2026 (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.
Previous studies have examined whether circadian rhythm tracking improves well-being, with some evidence suggesting that aligning daily activities with one's natural chronotype (a person's natural preference for being alert and sleep), enhances well-being and productivity. However, the current research lacks intervention-based designs like real-time tracking or behavioral alignment tools. Here, the investigators aim to investigate if an active intervention, involving the usage of an app tracking circadian rhythms and making recommendations based on one's circadian rhythm over seven weeks, improves students' flourishing.
Detailed description
The aim of this clinical study is to test the effectiveness of an intervention (through an app called Owaves: MyBodyClock that will be provided free of cost) designed to help students align daily activities in accordance with their circadian rhythm. The questions include:
- Does the intervention improve both trait and state measures of student flourishing, including general well-being (i.e., happiness), focus, and energy levels?
- Does the intervention alter the types of activities participants engage in?
- Does the intervention impact the likelihood of seeking resources for physical and mental health?
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Intervention Group who uses OWAVES App for 7 weeks | Experimental | Behavioral: Use of Owaves AppIntervention Group who uses OWAVES App for 7 weeks |
| Control group who does not use the OWAVES app | No intervention | – |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Currently an undergraduate students from University of California, San Diego (UCSD)
- Age 18 or older
- has access to a device to answer Qualtrics questions
- has access to a device that can download the MyBodyClock App (Apple iPhone or Apple iPad)
Key exclusion criteria (1 listed)
- Participants who are under the age of 18, are not undergraduate students at UCSD, or do not have access to the Qualtrics question platform and/or the MyBodyClock App
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Use of Owaves AppStudents use the Owaves app for 7 weeks and psychological measures are obatined pre and post to determine the effectiveness of the App | Behavioural | Intervention Group who uses OWAVES App for 7 weeks |
Primary outcome
Trait Happiness (Subjective Happiness Scale)
Time frame: Baseline (Weeks 1/2) and Weeks 8/9.
Subjective Happiness Scale (SHS) Trait questionnaire. The SHS is a 4-item scale of global subjective happiness. It is scored on a 7-point Likert scale where 1 = less happy to 7 = more happy. Total scores range from 4 to 28 where higher scores indicate greater subjective happiness.
Focus Trait (Barkley Adult ADHD Rating Scale (Inattention Subscale) and Academic Time Management and Procrastination Measure)
Time frame: Baseline (Weeks 1/2) and Weeks 8/9.
The Barkley Adult ADHD Rating Scale is a self-report questionnaire with 18-items which rates the frequency of ADHD symptoms and behaviors. Each item is scored on a 4-point scale ranging from 1 = never or rarely, to 4 = very often. A lower score indicates less severe ADHD symptoms and behaviors.
Energy Trait (Subjective Vitality Scale)
Time frame: Baseline (Weeks 1/2) and Weeks 8/9.
Subjective Vitality Scale (SVS) is a 6 - item self-report questionnaire to measure the subjective vitality of a participant. It is scored on a 7-point Likert scale where 1 = completely disagree to 7 = completely agree. Higher scores indicates higher level of subjective vitality.
Mindfulness Trait (Five Facet Mindfulness Questionnaire (FFMQ))
Time frame: Baseline (Weeks 1/2) and Weeks 8/9.
The Five Facet Mindfulness Questionnaire (FFMQ) short form is a 24-item questionnaire that measures mindfulness in participants. Items are scored on a 5-point Likert-type scale ranging from 1 = never/very rarely true to 5 = very often/always true. Higher scores indicate greater levels of mindfulness.
1 secondary outcome
States
Time frame: 7 weeks
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Feb 2026.
- Individual participant dataSharing planned: No
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.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Use of Owaves App in people with Chronotypes and Health, 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 4 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: looking for participants now, as of the sponsor's last update on 13 Feb 2026. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Karen Dobkins, PhD (16198468152, KDOBKINS@UCSD.EDU), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Trait Happiness (Subjective Happiness Scale) (time frame: Baseline (Weeks 1/2) and Weeks 8/9.). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 13 Feb 2026.