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Pycnogenol (Fransk maritim tallbark) för behandling av Gulfkrigssyndrom

18 september 2026 uppdaterad av: Jarred Younger, University of Alabama at Birmingham

Pycnogenol (Fransk maritim tallbark) för behandling av Gulfkrigssjukdom

The purpose of this research study is to determine how pycnogenol may reduce Gulf War Illness (GWI) symptom severity. The study will also examine the safety of this treatment and determine the optimal dosage. The investigators believe that GWI involves inflammation in the body and brain that causes fatigue, pain, cognitive disruption, and other symptoms. Botanicals that reduce inflammation may help treat GWI.

Studieöversikt

Detaljerad beskrivning

This study uses a decentralized design where individuals can participate from anywhere in the Alabama. Botanicals will be received by mail. Participants will also receive placebo (capsules with an inactive substance) during the treatment phase of the study. All participants will have been present in the Persian Gulf between 1990 and August 1991. This study will be tested on GWI participants recruited in Alabama, with a total of up to 20 participants enrolled (to account for potential withdrawals to obtain 10 completed participants) for the entire study. Participation will last 12 months.

The first stage of the study is the baseline phase. During this time, participants will complete weekly questionnaires about symptom severity ratings but will not take any capsules. The baseline stage will last for 30 days.

After the 30-day baseline, the treatment stage will begin. Capsules will be taken once in the morning, and once before bed. This study is single-blind, meaning that participants will not know when placebo or pycnogenol are received. There are also four possible dosages for pycnogenol.

The capsules will be packaged to indicate the order in which they should be taken. The capsules will be packaged in blister packs and shipped to participants. The capsules are designed to look the same throughout the study, though the contents can change. This treatment stage is the longest, lasting 10 months.

During the treatment stage, participants will also be asked to complete weekly questionnaires about GWI symptoms. These weekly questionnaires will also ask about changes in symptoms and overall quality of life, as well as changes in physical and mental health. Questionnaires can be completed on a smartphone, computer, or tablet. If participants do not have an appropriate device, or do not want to use a personal device, a tablet can be sent for the study. A research team member will speak with participants to set up electronic device connections and will verify the information is received.

At the end of the treatment stage, participants will stop taking capsules and will complete the end line stage. This stage is the same as the baseline stage in which participants will complete weekly symptom measures without taking capsules. This stage will last for 30 days.

After completion of the study, participants will be told when placebo was received, and what dosage(s) of treatment were received. Participants will also be shown how GWI severity changes over time.

While this study is long, it is designed to not be a significant burden to daily life. On most days, participation (taking morning capsules, taking evening capsules, and completing weekly symptom severity reports) should take approximately 2 minutes.

Studietyp

Interventionell

Inskrivning (Beräknad)

20

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studera Kontakt Backup

  • Namn: Catherine B Griffin
  • Telefonnummer: 205-975-5907
  • E-post: csburley@uab.edu

Studieorter

    • Alabama
      • Birmingham, Alabama, Förenta staterna, 35243
        • University of Alabama at Birmingham
        • Huvudutredare:
          • Jarred Younger, PhD
        • Kontakt:

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år och äldre (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Manlig

Beskrivning

Inclusion Criteria:

  • Meet the Kansas GWI case definition
  • Meet the CDC GWI case definition
  • Able to commit to a 12-month study
  • Male
  • Participants will be individuals in our Gulf War database who have already completed our other botanical trial, Curcumin, Resveratrol, and Stinging Nettle as Treatments for Gulf War Illness (NCT05377242).

Exclusion Criteria:

  • Currently involved in another experimental treatment study
  • Female
  • Have a blood clotting disorder
  • Reported diagnosis of diabetes with a A1C greater than 9
  • Use of contraindicated medications (see below):
  • Anticoagulants (such as warfarin, heparin, etc.)
  • Lithium
  • Tacrolimus (Prograf)
  • Cancer medications (Alkylating agents, antitumor antibiotics, Topoisomerase I inhibitors, Tamoxifen)
  • Daily Use of Antiplatelet agents (e.g. aspirin, clopidogrel)
  • Nitroglycerin
  • Hypotension
  • Need for surgery during study period.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: N/A
  • Interventionsmodell: Enskild gruppuppgift
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Participants Receiving Botanicals

Participants Receiving Botanicals

The placebo being used in this study is microcrystalline cellulose. This will be taken orally, up to twice per day.

Andra namn:
  • Mikrokristallin cellulosa

Pycnogenol being used in this study is a commercially available dietary supplement and is classified as food by the FDA instead of a drug. This will be taken orally, up to twice per day.

Andra namn:
  • Fransk maritim tallbark

Pycnogenol being used in this study is a commercially available dietary supplement and is classified as food by the FDA instead of a drug. This will be taken orally, up to twice per day.

Andra namn:
  • Fransk maritim tallbark

Pycnogenol being used in this study is a commercially available dietary supplement and is classified as food by the FDA instead of a drug. This will be taken orally, up to twice per day.

Andra namn:
  • Fransk maritim tallbark

Pycnogenol being used in this study is a commercially available dietary supplement and is classified as food by the FDA instead of a drug. This will be taken orally, up to twice per day.

Andra namn:
  • Fransk maritim tallbark

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in Physical Functioning Score of the Veterans Rand 12-Item Health Survey
Tidsram: 12 months

This change will be measured using weekly surveys. Veterans Rand 12-Item Health Survey scores are standardized to a mean of 50 (SD = 10), with higher scores indicating better functioning; scores theoretically range from approximately 0 to 100.

12 months
Change in Mental Functioning Score of the Veterans Rand 12-Item Health Survey
Tidsram: 12 months

This change will be measured using weekly surveys. Veterans Rand 12-Item Health Survey scores are standardized to a mean of 50 (SD = 10), with higher scores indicating better functioning; scores theoretically range from approximately 0 to 100.

12 months

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Utredare

  • Huvudutredare: Jarred Younger, PhD, University of Alabama at Birmingham

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Beräknad)

1 november 2026

Primärt slutförande (Beräknad)

1 november 2027

Avslutad studie (Beräknad)

1 november 2027

Studieregistreringsdatum

Först inskickad

24 november 2025

Först inskickad som uppfyllde QC-kriterierna

24 november 2025

Första postat (Faktisk)

5 december 2025

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

21 september 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

18 september 2026

Senast verifierad

1 september 2026

Mer information

Termer relaterade till denna studie

Andra studie-ID-nummer

  • IRB-30015456
  • UAB (Annan identifierare: UAB)

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

NEJ

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Nej

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

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