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NCT03334175 · ClinicalTrials.gov registry record · Phase 1

Walnuts to Achieve Lasting NUTrition to Prevent Diabetes

A Phase 1 study, sponsored by University of California, San Francisco.

Completed
Registry status
Phase 1
Development phase
18
Enrollment target

NCT03334175: Completed Phase 1 study, sponsored by University of California, San Francisco.

NCT03334175 is a Phase 1 study that has completed, run by University of California, San Francisco. The registered enrollment target is 18 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (70% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT03334175, a Phase 1 study, has completed, sponsored by University of California, San Francisco.

COMPLETED
Registry status
Phase 1
Development phase
18 participants
Enrollment target

Study Summary

Prediabetes is a precursor of type 2 diabetes and an independent risk factor for cardiovascular disease, and currently affects one-quarter of the population of the United States. Individuals of overweight or obese BMI are at particular high risk for incident diabetes. A major modifiable risk factor for type 2 diabetes is poor dietary quality, and improvement of dietary quality can effectively delay and even prevent type 2 diabetes. Interventions to improve dietary quality thus far, however, rely on short-term intensive clinically designed meals replacing the entire diet which have poor sustainability. Persistent improvements to daily dietary patterns are often difficult without directed guidance, and overall dietary quality in the United States remains poor. The identification of a practical, daily dietary intervention to improve dietary quality and prevent diabetes in those at high risk remains unknown. The investigators propose to enroll 40 individuals with diagnosed prediabetes into a randomized controlled pilot study and provide a daily walnut supplementation intervention to determine feasibility and acceptability of the supplement. The investigators will then determine preliminary efficacy on metabolic markers and will investigate associations between dietary quality and circulating levels of branched-chain amino acids. The goal is to implement a whole-food supplement to improve dietary quality in patients with prediabetes as a tool for future type 2 diabetes prevention.

Primary Outcome

Number of participants recruited and retained

Interventions

  • DRUG Walnuts

Trial Details

FieldValue
Enrollment Target 18 participants
Start Date 2018-05-21
Est. Completion 2019-08-05
Phase Phase 1

What the finished NCT03334175 record still lists

NCT03334175 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 18 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (70% lower).

The record links to 0 conditions, and to 1 intervention - of which Walnuts is the first listed.

NCT03334175 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT03334175 about?

NCT03334175 is a clinical study titled "Walnuts to Achieve Lasting NUTrition to Prevent Diabetes". Prediabetes is a precursor of type 2 diabetes and an independent risk factor for cardiovascular disease, and currently affects one-quarter of the population of the United States. Individuals of overweight or obese BMI are at particular high risk for incident diabetes. A major modifiable risk factor ...

What is the current status of trial NCT03334175?

This trial is currently completed. It is a Phase 1 study. The enrollment target is 18 participants. The study started on 2018-05-21. Estimated completion is 2019-08-05.

What interventions are being tested in trial NCT03334175?

The interventions under investigation include: Walnuts (DRUG).

Who is sponsoring clinical trial NCT03334175?

This trial is sponsored by University of California, San Francisco, which has 1,713 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT03334175's enrollment target sits among peer trials

18 1720th of 2000 higher than 216 of 2,000 other Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT03334175, the US trial registry maintained by the National Library of Medicine. NCT03334175 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.