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Spark: Finding the Optimal Tracking Strategy for Weight Loss in a Digital Health Intervention
NCT05249465 · View on ClinicalTrials.gov ↗
Study Summary
This optimization trial will examine three tracking (or "self-monitoring") strategies for weight loss -- tracking dietary intake, steps, and/or body weight -- all delivered through digital health tools. The purpose of the study is to evaluate the combination of these strategies that maximizes 6-month weight loss in the context of a standalone digital health intervention for adults with overweight or obesity. The investigators will recruit 176 total participants to the trial. Recruitment will occur through remote channels. Interested individuals will be directed to an online screening questionnaire; those who are eligible will then be invited to attend an initial remote session with study personnel to ensure interest and eligibility in the study. The weight loss intervention will last 6 months, and all participants will receive a "core" treatment consisting of goal setting, behavioral lessons, action plans, and tailored feedback - all of which will be delivered remotely. Depending on which group participants are assigned to in the study, some individuals will be asked to track their dietary intake, their steps, and/or their body weight via digital tools. All study tasks will occur remotely, thus, participants never need to come in-person for any intervention or assessment tasks. The investigators will use the Multiphase Optimization Strategy (MOST) framework to identify the most effective combination of self-monitoring strategies. The factorial design will allow the research team to determine the unique and combined impact of each self-monitoring component on weight change. The primary outcome is weight change from baseline to 6 months. The research team will also assess self-monitoring engagement over 6 months and its association with weight change. To complement the main trial, the research team will also randomize half of participants to receive an interactive orientation video, in order to assess its impact on trial retention at 6 months. Overall, the informati
Conditions Studied
Interventions
- BEHAVIORAL Core behavioral weight loss intervention
- BEHAVIORAL Self-monitoring diet
- BEHAVIORAL Self-monitoring weight
- BEHAVIORAL Self-monitoring steps
Study Locations (1)
California
- Stanford University School of Medicine — Stanford
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 176 participants |
| Start Date | 2023-09-22 |
| Est. Completion | 2025-06-23 |
| Phase | NA |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT05249465
The ClinicalTrials.gov registry entry for NCT05249465 describes a study currently listed as completed. It is categorized as NA, which is the standard way researchers label where a study sits along the investigational pathway from early safety work through later efficacy and post-marketing evaluation. The registered enrollment target is 176 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is Stanford University, which has 1,643 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.
The record links to 4 conditions, with Obesity appearing as the primary indexed condition, and to 4 interventions — of which Core behavioral weight loss intervention is the first listed. Interventions can include drugs, devices, procedures, behavioral programs, or observational arms, and each is tracked as a separate registry field so that downstream queries can filter accurately. When a trial lists multiple interventions, it usually reflects a multi-arm design or a comparison protocol rather than a single treatment being tested in isolation. The brief summary published in the registry is the clearest source of protocol intent and should be read before drawing conclusions from any sidebar tags.
Geographic footprint matters for practical reasons: NCT05249465 reports 1 study location spanning 1 distinct geographic area — top geographies include California. A larger site network tends to correlate with broader recruitment capacity, but it does not imply anything about study quality, and site-level enrollment status can diverge from the overall registry status shown above. Every data point on this page comes from the public ClinicalTrials.gov dataset and is reproduced here for reference only; it is not a medical recommendation, an endorsement of the sponsor, or an invitation to enroll. Verify current status, eligibility criteria, and contact details directly at ClinicalTrials.gov, and discuss any participation decision with your own healthcare provider.
Frequently Asked Questions
What is clinical trial NCT05249465 about?
NCT05249465 is a clinical study titled "Spark: Finding the Optimal Tracking Strategy for Weight Loss in a Digital Health Intervention". This optimization trial will examine three tracking (or "self-monitoring") strategies for weight loss -- tracking dietary intake, steps, and/or body weight -- all delivered through digital health tools. The purpose of the study is to evaluate the combination of these strategies that maximizes 6-mont...
What is the current status of trial NCT05249465?
This trial is currently completed. It is a NA study. The enrollment target is 176 participants. The study started on 2023-09-22. Estimated completion is 2025-06-23.
What conditions does trial NCT05249465 study?
This clinical trial studies the following conditions: Obesity, Overweight, Weight Loss, Health Behavior. These conditions were identified from the trial registry and reflect the primary focus areas of the research.
What interventions are being tested in trial NCT05249465?
The interventions under investigation include: Core behavioral weight loss intervention (BEHAVIORAL), Self-monitoring diet (BEHAVIORAL), Self-monitoring weight (BEHAVIORAL), Self-monitoring steps (BEHAVIORAL). Each intervention is being evaluated for safety and efficacy as part of this clinical study.
Who is sponsoring clinical trial NCT05249465?
This trial is sponsored by Stanford University, which has 1,643 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.
Where is trial NCT05249465 being conducted?
This trial has 1 study location across California. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
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