NCT03695263

Brief Summary

The project will enroll up to 10,000 adult volunteers in individualized experiments (N-of-1 trials) designed to assess the individual-level effects of any of five interventions on three outcomes. The five interventions are: gratitude journaling, mindfulness meditation, random acts of kindness, physical activity, and laughter therapy. The three outcomes are stress, cognitive focus, and happiness. Each participant will engage in the selected activity in 3 day intervals, separated at random by 3 day intervals of usual activity, for a total of six 3-day periods (18 days).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
483

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Apr 2019

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 2, 2018

Completed
2 days until next milestone

First Posted

Study publicly available on registry

October 4, 2018

Completed
6 months until next milestone

Study Start

First participant enrolled

April 15, 2019

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2019

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2019

Completed
Last Updated

January 10, 2020

Status Verified

January 1, 2020

Enrollment Period

8 months

First QC Date

October 2, 2018

Last Update Submit

January 8, 2020

Conditions

Outcome Measures

Primary Outcomes (3)

  • Stress

    How stressed are you feeling today? (single item Likert scale).Stress will be measured using a single Likert-type question that ranges from 0-10, For stress 0 (not at all) represents a better outcome and 10 (as much as possible) represents a worse outcome.

    18 days

  • Focus

    How focused are you feeling today? (single item Likert scale).Focus will be measured using a single Likert-type question that ranges from 0-10. For focus 0 (not at all) represents a worse outcome and 10 (as much as possible) represents a better outcome.

    18 days

  • Happiness

    How happy are you feeling today? (single item Likert scale).Happiness will be measured using a single Likert-type question that ranges from 0-10. For happiness 0 (not at all) represents a worse outcome and 10 (as much as possible) represents a better outcome.

    18 days

Secondary Outcomes (1)

  • User burden

    Within 1 to 28 days of N-of-1 trial completion

Study Arms (1)

N-of-1 Trial

EXPERIMENTAL

Multiple crossovers between one of the available intervention options (mindfulness meditation, gratitude journaling, physical activity, laughter therapy, or random acts of kindness) and usual activities

Behavioral: Choice of one of five behavioral interventions

Interventions

All participants will choose one of the five intervention options.

N-of-1 Trial

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18 or over
  • Living anywhere in the United States
  • Using a smartphone
  • Having regular access to internet on their phone
  • Able to read and write in English

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UC Davis Health

Sacramento, California, 95817, United States

Location

MeSH Terms

Conditions

Stress, Psychological

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehavior

Study Officials

  • Richard L Kravitz, MD, MSPH

    UC Davis Division of General Medicine

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Masking
NONE
Masking Details
The analysis will proceed automatically without knowledge of which 3-day treatment periods were associated with one of the five interventions and which were associated with the subject's usual activities.
Purpose
TREATMENT
Intervention Model
SEQUENTIAL
Model Details: Each participant will enroll in a personalized ("N-of-1") crossover trial.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 2, 2018

First Posted

October 4, 2018

Study Start

April 15, 2019

Primary Completion

November 30, 2019

Study Completion

December 30, 2019

Last Updated

January 10, 2020

Record last verified: 2020-01

Data Sharing

IPD Sharing
Will not share

Locations