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Safety, Tolerability and Efficacy of Dietary Supplementation with Concord Grape Juice in Gulf War Veterans with Gulf War Illness: A Phase I/IIA, Randomized, Double-Blind, Placebo-Controlled Trial

Approximately 30 percent of U.S. veterans deployed during the Gulf War (1990–1991) have been diagnosed with Gulf War Illness (GWI), a chronic multi-symptom disorder without widely available specific treatments. We investigated whether the consumption of Concord grape juice (CGJ), rich in anti-inflam...

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Autores principales: Helmer, Drew A., Van Doren, William W., Litke, David R., Tseng, Chin-Lin, Ho, Lap, Osinubi, Omowunmi, Pasinetti, Giulio Maria
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7277758/
https://www.ncbi.nlm.nih.gov/pubmed/32438639
http://dx.doi.org/10.3390/ijerph17103546
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author Helmer, Drew A.
Van Doren, William W.
Litke, David R.
Tseng, Chin-Lin
Ho, Lap
Osinubi, Omowunmi
Pasinetti, Giulio Maria
author_facet Helmer, Drew A.
Van Doren, William W.
Litke, David R.
Tseng, Chin-Lin
Ho, Lap
Osinubi, Omowunmi
Pasinetti, Giulio Maria
author_sort Helmer, Drew A.
collection PubMed
description Approximately 30 percent of U.S. veterans deployed during the Gulf War (1990–1991) have been diagnosed with Gulf War Illness (GWI), a chronic multi-symptom disorder without widely available specific treatments. We investigated whether the consumption of Concord grape juice (CGJ), rich in anti-inflammatory flavonoids, would be tolerated and safe in individuals with GWI and explored improvement in cognitive function and fatigue. Thirty-six veterans with GWI enrolled in a 24-week randomized, double-blind, Phase I/IIA clinical trial to explore safety, tolerability, and feasibility of 16 ounces daily of commercially available CGJ compared to placebo. Participants completed neurocognitive tests and self-reported surveys at baseline, 12 and 24 weeks. Thirty-one participants (86%) completed the study; no dropouts were related to side effects. Thirty participants (83%) documented ≥80% adherence. There were no statistically significant unadjusted differences between CGJ and placebo groups in change in efficacy measures from baseline to endpoint. We employed general linear regression models controlling for baseline differences between groups which indicated statistically significant improvement in the Halstead Category Test–Russell Revised Version (RCAT) at endpoint in the CGJ group compared to placebo (8.4 points, p = 0.04). Other measures of cognitive functioning did not indicate significant improvements in the adjusted analyses (p-values: 0.09–0.32), nor did the fatigue variable (p = 0.67). CGJ was safe and well-tolerated by veterans with GWI. Our data suggest high tolerability and potential benefit from CGJ in veterans with GWI and can be used to inform future studies of efficacy.
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spelling pubmed-72777582020-06-12 Safety, Tolerability and Efficacy of Dietary Supplementation with Concord Grape Juice in Gulf War Veterans with Gulf War Illness: A Phase I/IIA, Randomized, Double-Blind, Placebo-Controlled Trial Helmer, Drew A. Van Doren, William W. Litke, David R. Tseng, Chin-Lin Ho, Lap Osinubi, Omowunmi Pasinetti, Giulio Maria Int J Environ Res Public Health Article Approximately 30 percent of U.S. veterans deployed during the Gulf War (1990–1991) have been diagnosed with Gulf War Illness (GWI), a chronic multi-symptom disorder without widely available specific treatments. We investigated whether the consumption of Concord grape juice (CGJ), rich in anti-inflammatory flavonoids, would be tolerated and safe in individuals with GWI and explored improvement in cognitive function and fatigue. Thirty-six veterans with GWI enrolled in a 24-week randomized, double-blind, Phase I/IIA clinical trial to explore safety, tolerability, and feasibility of 16 ounces daily of commercially available CGJ compared to placebo. Participants completed neurocognitive tests and self-reported surveys at baseline, 12 and 24 weeks. Thirty-one participants (86%) completed the study; no dropouts were related to side effects. Thirty participants (83%) documented ≥80% adherence. There were no statistically significant unadjusted differences between CGJ and placebo groups in change in efficacy measures from baseline to endpoint. We employed general linear regression models controlling for baseline differences between groups which indicated statistically significant improvement in the Halstead Category Test–Russell Revised Version (RCAT) at endpoint in the CGJ group compared to placebo (8.4 points, p = 0.04). Other measures of cognitive functioning did not indicate significant improvements in the adjusted analyses (p-values: 0.09–0.32), nor did the fatigue variable (p = 0.67). CGJ was safe and well-tolerated by veterans with GWI. Our data suggest high tolerability and potential benefit from CGJ in veterans with GWI and can be used to inform future studies of efficacy. MDPI 2020-05-19 2020-05 /pmc/articles/PMC7277758/ /pubmed/32438639 http://dx.doi.org/10.3390/ijerph17103546 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Helmer, Drew A.
Van Doren, William W.
Litke, David R.
Tseng, Chin-Lin
Ho, Lap
Osinubi, Omowunmi
Pasinetti, Giulio Maria
Safety, Tolerability and Efficacy of Dietary Supplementation with Concord Grape Juice in Gulf War Veterans with Gulf War Illness: A Phase I/IIA, Randomized, Double-Blind, Placebo-Controlled Trial
title Safety, Tolerability and Efficacy of Dietary Supplementation with Concord Grape Juice in Gulf War Veterans with Gulf War Illness: A Phase I/IIA, Randomized, Double-Blind, Placebo-Controlled Trial
title_full Safety, Tolerability and Efficacy of Dietary Supplementation with Concord Grape Juice in Gulf War Veterans with Gulf War Illness: A Phase I/IIA, Randomized, Double-Blind, Placebo-Controlled Trial
title_fullStr Safety, Tolerability and Efficacy of Dietary Supplementation with Concord Grape Juice in Gulf War Veterans with Gulf War Illness: A Phase I/IIA, Randomized, Double-Blind, Placebo-Controlled Trial
title_full_unstemmed Safety, Tolerability and Efficacy of Dietary Supplementation with Concord Grape Juice in Gulf War Veterans with Gulf War Illness: A Phase I/IIA, Randomized, Double-Blind, Placebo-Controlled Trial
title_short Safety, Tolerability and Efficacy of Dietary Supplementation with Concord Grape Juice in Gulf War Veterans with Gulf War Illness: A Phase I/IIA, Randomized, Double-Blind, Placebo-Controlled Trial
title_sort safety, tolerability and efficacy of dietary supplementation with concord grape juice in gulf war veterans with gulf war illness: a phase i/iia, randomized, double-blind, placebo-controlled trial
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7277758/
https://www.ncbi.nlm.nih.gov/pubmed/32438639
http://dx.doi.org/10.3390/ijerph17103546
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