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Phase 2 Seattle Dietary Biomarkers Development Center
NCT06656338 · View on ClinicalTrials.gov ↗
Study Summary
The Seattle Dietary Biomarker Development Center (S-DBDC) aims to advance the science of measuring dietary intake by identification and validation of dietary biomarkers that improve upon self-reported diet. To accomplish this mission, the Seattle DBDC will carry out controlled feeding studies in healthy human volunteers. Metabolomics assays will be conducted on blood and urine specimens collected during the feeding studies for biomarker identification. Stool samples will be collected and archived.
Conditions Studied
Interventions
- OTHER Higher HEI-2020 diet followed by lower HEI-2020 diet
- OTHER Lower HEI-2020 diet followed by higher HEI-2020 diet
Study Locations (1)
Washington
- Fred Hutchinson Cancer Center — Seattle
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 30 participants |
| Start Date | 2025-03-18 |
| Est. Completion | 2026-11 |
| Phase | NA |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT06656338
The ClinicalTrials.gov registry entry for NCT06656338 describes a study currently listed as recruiting. 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 30 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is Marian Neuhouser, which has 1 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.
The record links to 1 condition, with Healthy Adults appearing as the primary indexed condition, and to 2 interventions — of which Higher HEI-2020 diet followed by lower HEI-2020 diet 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: NCT06656338 reports 1 study location spanning 1 distinct geographic area — top geographies include Washington. 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 NCT06656338 about?
NCT06656338 is a clinical study titled "Phase 2 Seattle Dietary Biomarkers Development Center". The Seattle Dietary Biomarker Development Center (S-DBDC) aims to advance the science of measuring dietary intake by identification and validation of dietary biomarkers that improve upon self-reported diet. To accomplish this mission, the Seattle DBDC will carry out controlled feeding studies in hea...
What is the current status of trial NCT06656338?
This trial is currently recruiting. It is a NA study. The enrollment target is 30 participants. The study started on 2025-03-18. Estimated completion is 2026-11.
What conditions does trial NCT06656338 study?
This clinical trial studies the following conditions: Healthy Adults. These conditions were identified from the trial registry and reflect the primary focus areas of the research.
What interventions are being tested in trial NCT06656338?
The interventions under investigation include: Higher HEI-2020 diet followed by lower HEI-2020 diet (OTHER), Lower HEI-2020 diet followed by higher HEI-2020 diet (OTHER). Each intervention is being evaluated for safety and efficacy as part of this clinical study.
Who is sponsoring clinical trial NCT06656338?
This trial is sponsored by Marian Neuhouser, which has 1 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.
Where is trial NCT06656338 being conducted?
This trial has 1 study location across Washington. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
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