Last reviewed · How we verify
NCT06656338: P2-SDBDC
Phase 2 Seattle Dietary Biomarkers Development Center
NA trial testing Higher HEI-2020 diet followed by lower HEI-2020 diet in Healthy Adults in 32 participants. Completed in 27 February 2026.
27 February 2026
Quick facts
| Lead sponsor | Marian Neuhouser |
|---|---|
| Phase | NA |
| Status | Completed |
| Study type | INTERVENTIONAL |
| Allocation | randomized |
| Design | crossover |
| Masking | double |
| Primary purpose | other |
| Enrollment | 32 |
| Start date | 18 March 2025 |
| Primary completion | 27 February 2026 |
| Estimated completion | 27 February 2026 |
| Sites | 1 location across United States |
Drugs / interventions tested
- Higher HEI-2020 diet followed by lower HEI-2020 diet
- Lower HEI-2020 diet followed by higher HEI-2020 diet
Conditions studied
- Healthy Adults — all drugs for Healthy Adults →
Sponsor
Marian Neuhouser
Who can join
18 and older, any sex, with Healthy Adults. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
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.
Publications & conference data
No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.
Verify or expand the search:
- PubMed search for NCT06656338
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
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- NCT07518758 — Acute Effect of Polyphenols Supplementation on Endothelial Function and Exercise Related Markers, in Physically Active H · NA · active not recruiting
Other Marian Neuhouser trials
Trials by the same sponsor.
- NCT05580653 — Phase 1 Seattle Dietary Biomarkers Development Center · NA · completed
Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT06656338 (US National Library of Medicine, public domain)
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by Marian Neuhouser
- Last refreshed: 13 April 2026
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT06656338.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing