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Novel Approach to Increase EPA and DHA Levels

The Intake of Omega-3 Fatty Acids and the Inhibition of Their Mitochondrial Metabolism Increase EPA and DHA Levels in Healthy Volunteers

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07304921
Enrollment
48
Registered
2025-12-26
Start date
2023-04-06
Completion date
2023-06-06
Last updated
2026-07-31

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lipid Metabolism, Omega-3 Polyunsaturated Fatty Acids, Supplementation

Keywords

PUFA, meldonium, EPA, DHA, cardiometabolic health, acylcarnitines

Brief summary

The goal of this intervention trial is to evaluate whether combining meldonium therapy with PUFAs (polyunsaturated fatty acids) supplements containing eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) changes the plasma (blood component) concentration of EPA and DHA, as well as the acylcarnitine (fatty acid metabolite) profile in healthy volunteers. The main questions it aims to answer are: Does using meldonium together with PUFA supplements increase PUFA (EPA and DHA) concentrations in blood plasma? Does meldonium therapy change change the fatty acid metabolite (acylcarnitine) profile, if used together with PUFA supplements? Researchers compared plasma metabolic parameters in the beginning, middle and end of study period in a group who received only PUFA supplements, with a group which got PUFA supplements at the beginning, but after one month meldonium therapy was added and a group which got meldonium therapy at the beginning, but after one month PUFA supplements were added. Participants: 1. Received detailed information about the study and signed an informed consent form. 2. They were assigned to one of three study groups and received PUFAs and/or meldonium for the duration of the study. 3. Plasma samples were collected at the beginning, middle and end of the study period.

Interventions

DRUGMeldonium + PUFA

Meldonium (1g/day) or four weeks, followed by an additional four weeks of combined meldonium and PUFA (930 mg EPA and 750 mg DHA) supplement

DIETARY_SUPPLEMENTPUFA + meldonium

PUFA supplement (930 mg EPA and 750 mg DHA) for four weeks, followed by an additional four weeks of combined PUFA supplement with 1 g/day meldonium

DIETARY_SUPPLEMENTPUFA supplementation only

PUFA supplement containing 930 mg EPA and 750 mg DHA for 8 weeks

Sponsors

Riga Stradins University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Healthy adults (age 18 and older)

Exclusion criteria

* Previously diagnosed serious chronic diseases (diabetes mellitus, atherosclerotic cardiovascular diseases, chronic kidney and liver diseases, cancer) * PUFA supplement usage and/or meldonium therapy at least 6 months before inclusion in the study * Participation in other clinical drug trials * Pregnancy and breastfeeding

Design outcomes

Primary

MeasureTime frameDescription
Changes in the plasma concentrations of EPA and DHAFrom enrollment moment to the end of 8 week study period
Changes in plasma acetylcarnitine concentrationsFrom the enrollment moment to the end of 8 week study periodAcetylcarnitine contains acyl group with 2 carbon atoms
Changes in plasma medium-chain acylcarnitine concentrationFrom enrollment moment to the end of 8 week study periodMedium- chain acylcarnitines are defined as containing acyl groups with 6-12 carbon atoms
Changes in plasma long-chain acylcarnitine concentrationTime Frame: From the enrollment moment to the end of 8 week study periodLong-chain acylcarnitines contain acyl groups with 14-18 carbon atoms

Secondary

MeasureTime frame
Changes in plasma meldonium concentrationFrom the enrollment moment to the end of 8 week study period
Changes in plasma gamma-butyrobetaine (GBB) concentrationsFrom the enrollment moment to the end of 8 week study period

Countries

Latvia

Contacts

PRINCIPAL_INVESTIGATORIlze Konrade, PhD, MD

Riga Stradins University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 1, 2026