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Gulf War IllnessNCT05252949

OEA for Targeting Lipid Metabolism in GWI

A study testing Oleoylethanolamide (OEA) in people with Gulf War Illness, run by Roskamp Institute Inc. at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study is a single site, randomized, double-blind, placebo-controlled study with an open label extension to evaluate the effects of Oleoylethanolamine (OEA) on blood lipid and immune biomarkers in participants with Gulf War Illness (GWI). Read more about this study

Who is it for?
Ages Up to 70 yearsHealthy volunteers can take part
Conditions the study is for
Gulf War Illness
What is being tested?
Oleoylethanolamide (OEA)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
52 participants
Where
1 siteUnited States
Study dates
10 Jun 2021to 30 Jan 2025
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Up to 70 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Who may be able to join

  • Both genders, all ethnic groups, and ages up to 70.
  • Subject willing and able to give informed consent.
  • Medically stable as per the investigator's discretion.
  • Negative urine pregnancy test for females of childbearing potential. A woman is considered of childbearing potential unless she is surgically sterile (hysterectomy or tubal ligation) or is postmenopausal (no menstrual cycle for 2 years or more).
  • Must be willing to use adequate birth control during the study and for 30 days after the last dose. Females agreeing to take an acceptable form of birth control per investigator discretion (where relevant). Females must prevent pregnancy or otherwise be unable to conceive.
  • Veterans deployed to the Gulf War between August 1990 and August 1991.
  • Veteran meets criteria for the CDC Chronic Multisymptom Illness (CMI) GWI definition or Kansas GWI definition.
  • Weight of 50.0kg - 200.0kg (110lbs - 440lbs).

Who cannot join

  • Diagnosed by a physician with medical or psychiatric conditions that would account for their symptoms or interfere with their ability to report their symptoms.
  • Female subject is either pregnant or nursing.
  • Have contraindications, allergy, or sensitivity to OEA, olive oil, or excipients (microcrystalline cellulose, silicon dioxide, magnesium stearate, macrogol polyvinyl alcohol copolymer, talc, titanium dioxide, glycerol monocaprylocaprate and polyvinyl alcohol).
  • Any significant medical condition that could interfere with study conduct, as per investigator discretion. These may include but are not limited to the following: untreated chronic hypertension (defined as systolic > 180 mmHg; diastolic >110 mmHg), myocardial infarction within 6 months of screening, renal failure, hepatic failure, and/or receiving chemotherapy.
  • Clinically significant lab values for clinical laboratory assessments.
  • Poor venous access.
  • Current use of any OEA supplement products within 30 days of screening.
  • Participation in another clinical trial involving dietary or pharmaceutical intervention within 90 days of screening.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • The Roskamp Institute

    Sarasota, Florida, 34243

Other trials in United States

About this study

Official title: A Randomized, Double-blind, Placebo-controlled Clinical Trial of Oleoylethanolamide (OEA) for Targeting Lipid Metabolism in Gulf War Illness

The study is a single site, randomized, double-blind, placebo-controlled study with an open label extension to evaluate the effects of Oleoylethanolamine (OEA) on blood lipid and immune biomarkers in participants with Gulf War Illness (GWI).

Read the detailed description

The 1991 Gulf War (GW) was fought by a coalition of 30 countries that included 700,000 U.S. troops. Although the war itself lasted two months, adverse health consequences from this conflict are still experienced by GW veterans. Soon after their return, many soldiers started reporting multiple, seemingly unrelated symptoms, such as memory impairment, fatigue, gastrointestinal problems, and widespread pain. This illness is termed Gulf War Illness (GWI) and affects about 32% of GW veterans. Several animal studies suggest that GWI presentation involves disturbed immune responses in the brain that correspond with altered lipid metabolism. Many of these lipid alterations are detected in blood of veterans with GWI and point to an abnormal function of peroxisomes and mitochondria which regulate lipids that are required for cellular signaling and for maintaining normal physiology. The investigators' preclinical studies using a GWI mouse model showed that targeting peroxisomal lipid metabolism with oleoylethanolamide (OEA) reduced corrected immune function and normalized brain and blood lipid profiles in GWI mice. Therefore, the objective of this pilot clinical research study is to determine if OEA supplementation in veterans with GWI maintains healthy blood lipid and immune profiles.

Being tested
Oleoylethanolamide (OEA), Placebo

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Oleoylethanolamide (OEA)Dietary supplement

    Oleoylethanolamide (OEA) is a naturally occurring ethanolamide that acts as a peroxisome proliferator-activated receptor alpha (PPAR-α) agonist, thereby modulating lipid profiles.

  • PlaceboDietary supplement

    Visually matching placebo capsules will contain the same inactive ingredients present in the manufactured OEA capsules, with the exception of any OEA compound.

Study groups in NCT05252949
Study groupRoleWhat they receive
Study Supplement: OEAActive comparator26 subjects will take the supplement (oleoylethanolamide) during the first phase of the study. 200mg will be taken twice a day for the 10-week period in phase one.
Receives: Dietary Supplement: Oleoylethanolamide (OEA)
ControlPlacebo comparator26 subjects will take the placebo during the first phase of the study (10 weeks).
Receives: Dietary Supplement: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Changes in lipid biomarker profiles

    The primary objective of the study is to assess the change in lipid levels in the blood between the two treatment arms over the 10-week placebo-controlled phase.

    Measured: 10 weeks

  2. Changes in immune biomarker profiles

    The primary objective of the study is to assess the change in cytokine levels in the blood between the two treatment arms over the 10-week placebo-controlled phase.

    Measured: 10 weeks

Secondary outcomes (6)
  1. Changes in fatigue

    The study will use the Multidimensional Fatigue Inventory (MFI-20) to assess fatigue.

    Measured: 10 weeks

  2. Changes in mood

    The study will use the Profile of Mood States (POMS) to assess mood.

    Measured: 10 weeks

  3. Changes in pain

    The study will use the McGill Pain Questionnaire (SF-MPQ) to assess pain.

    Measured: 10 weeks

  4. Changes in cognition (neurocognitive)

    The study will use the CNS Vital Signs computerized neurocognitive assessment software to assess memory. The computerized test uses individual tests to comprise a neurocognitive index score that can be used to evaluate neurocognitive status.

    Measured: 10 weeks

  5. Changes in cognition (neuropsychological)

    The study will use the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) cognitive test to assess memory. The test incorporates immediate memory, visuospatial/constructional, language, attention, and delayed memory components to determine a total scaled score for neuropsychological status. This total score ranges from 200 to 800, with higher scores increasing the associated percentile.

    Measured: 10 weeks

  6. Changes in quality of life

    The study will use the Quality of Life Scale (SF36).

    Measured: 10 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Feb 2022
  2. Study start10 Jun 2021
  3. Primary completion30 Sep 2024
  4. Study completion30 Jan 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Model description
We will administer either OEA or placebo to the study participants over a blinded period of 10 weeks, followed by an open label phase with all participants receiving OEA for 5 weeks.
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
52 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05252949
Sponsor's protocol ID
RI-OEA-001
Status last verified
Apr 2024
First submitted
25 Jan 2022
Last updated
8 Aug 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • White RF, Steele L, O'Callaghan JP, Sullivan K, Binns JH, Golomb BA, Bloom FE, Bunker JA, Crawford F, Graves JC, Hardie A, Klimas N, Knox M, Meggs WJ, Melling J, Philbert MA, Grashow R. Recent research on Gulf War illness and other health problems in veterans of the 1991 Gulf War: Effects of toxicant exposures during deployment. Cortex. 2016 Jan;74:449-75. doi: 10.1016/j.cortex.2015.08.022. Epub 2015 Sep 25.

    PubMed 26493934
  • Abdullah L, Crynen G, Reed J, Bishop A, Phillips J, Ferguson S, Mouzon B, Mullan M, Mathura V, Mullan M, Ait-Ghezala G, Crawford F. Proteomic CNS profile of delayed cognitive impairment in mice exposed to Gulf War agents. Neuromolecular Med. 2011 Dec;13(4):275-88. doi: 10.1007/s12017-011-8160-z. Epub 2011 Oct 11.

    PubMed 21986894
  • Abdullah L, Evans JE, Bishop A, Reed JM, Crynen G, Phillips J, Pelot R, Mullan MA, Ferro A, Mullan CM, Mullan MJ, Ait-Ghezala G, Crawford FC. Lipidomic profiling of phosphocholine-containing brain lipids in mice with sensorimotor deficits and anxiety-like features after exposure to Gulf War agents. Neuromolecular Med. 2012 Dec;14(4):349-61. doi: 10.1007/s12017-012-8192-z. Epub 2012 Jul 14.

    PubMed 22798222
  • Abdullah L, Evans JE, Montague H, Reed JM, Moser A, Crynen G, Gonzalez A, Zakirova Z, Ross I, Mullan C, Mullan M, Ait-Ghezala G, Crawford F. Chronic elevation of phosphocholine containing lipids in mice exposed to Gulf War agents pyridostigmine bromide and permethrin. Neurotoxicol Teratol. 2013 Nov-Dec;40:74-84. doi: 10.1016/j.ntt.2013.10.002. Epub 2013 Oct 17.

    PubMed 24140745
  • Abdullah L, Evans JE, Joshi U, Crynen G, Reed J, Mouzon B, Baumann S, Montague H, Zakirova Z, Emmerich T, Bachmeier C, Klimas N, Sullivan K, Mullan M, Ait-Ghezala G, Crawford F. Translational potential of long-term decreases in mitochondrial lipids in a mouse model of Gulf War Illness. Toxicology. 2016 Nov 30;372:22-33. doi: 10.1016/j.tox.2016.10.012. Epub 2016 Oct 29.

    PubMed 27931520
  • Joshi U, Evans JE, Joseph R, Emmerich T, Saltiel N, Lungmus C, Oberlin S, Langlois H, Ojo J, Mouzon B, Paris D, Mullan M, Jin C, Klimas N, Sullivan K, Crawford F, Abdullah L. Oleoylethanolamide treatment reduces neurobehavioral deficits and brain pathology in a mouse model of Gulf War Illness. Sci Rep. 2018 Aug 27;8(1):12921. doi: 10.1038/s41598-018-31242-7.

    PubMed 30150699
  • Emmerich T, Zakirova Z, Klimas N, Sullivan K, Shetty AK, Evans JE, Ait-Ghezala G, Laco GS, Hattiangady B, Shetty GA, Mullan M, Crynen G, Abdullah L, Crawford F. Phospholipid profiling of plasma from GW veterans and rodent models to identify potential biomarkers of Gulf War Illness. PLoS One. 2017 Apr 28;12(4):e0176634. doi: 10.1371/journal.pone.0176634. eCollection 2017.

    PubMed 28453542
  • Abdullah L, Keegan AP, Hoffmann M, Baraniuk J, Mack W, Sullivan K, Luis C, Rindfleisch C, Huguenard CJC, Cseresznye A, Aldrich GJ, Evans JE, Paris D, Helgager D, Crawford F, Mullan M. Oleoylethanolamide supplementation improves mood and reduces fatigue in veterans with GWI in a 15-week randomized, double-blind, placebo-controlled exploratory clinical trial. Sci Rep. 2026 Jan 9;16(1):4933. doi: 10.1038/s41598-026-35168-3.

    PubMed 41513981

Questions about this trial

What is this clinical trial studying?

A study testing Oleoylethanolamide (OEA) in people with Gulf War Illness, run by Roskamp Institute Inc. at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Changes in lipid biomarker profiles (time frame: 10 weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05252949, which also lists 8 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Aug 2025.

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