CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 34 enrolled / 34 target
Drug / intervention
GP-SPIdietary
Likely dose
20 gfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04018066
NCT04018066N/ACompletedUpdate Overdue (0.4/mo)Completion was 78mo ago
CompareCT.gov

The Effect of Concord Grape Polyphenol-soy Protein Isolate Complex (GP-SPI) on Gut Microbiota

Rutgers, The State University of New Jersey·interventional·Posted Jul 12, 2019·Updated Jun 18, 2026

In Brief

A clinical study evaluating GP-SPI for Mechanisms, Defense. Completed, enrolled 34 participants across 1 site.

Signals

Enrollment appears stalled

Detailed Summary

The overall purpose of this study is to evaluate the effect of nutritional supplementation with a well-characterized preparation of Concord grape polyphenol-soy protein isolate (GP-SPI) on the composition of the gut microbiota.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsMechanisms, Defense
CountriesUnited States
Collaborators--

Timeline

N/ACompletedFinished
2020202120222023202420252026
First PostedJul 12, 2019
Enrollment StartJun 28, 2019
Primary CompletionDec 20, 2019
TodayJul 2, 2026
Enrollment to primary: 6 monthsPosted 7.0 years ago

Arms & Interventions

GP-SPI interventionexperimental

20 g of GP-SPI taken twice per day for 10 days

Dietary Supplement: GP-SPI

Interventions

GP-SPIdietary

grape polyphenol-soy protein isolate complex (GP-SPI)