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Not yet recruitingNCT07394517ATLANTISUpdated Feb 10, 2026

ATLANTIS Trial: Phospholipid Omega-3 Versus Conventional Omega-3

An interventional study of Phospholipid Omega-3 and Phospholipid Omega-3 in Mixed Dyslipidemia, sponsored by Fundación del Caribe para la Investigación Biomédica. Not yet recruiting at 1 site in Colombia. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-02-10.

Sponsored by Fundación del Caribe para la Investigación Biomédica · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
105
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study is a clinical trial designed to compare two forms of omega-3 supplements in adults with mixed dyslipidemia. Mixed dyslipidemia is a condition in which blood fat levels, such as triglycerides and cholesterol, are not within the recommended range and may increase the risk of cardiovascular disease.

Participants in this study will be randomly assigned to receive one of three study products: a phospholipid-based omega-3 supplement (Ruby-O) at a moderate dose, the same phospholipid-based omega-3 supplement at a higher dose, or a conventional omega-3 supplement in triglyceride form. All study products will be taken by mouth once daily with food for 24 weeks.

The main goal of the study is to evaluate changes in the Omega-3 Index, a blood test that reflects the amount of omega-3 fatty acids incorporated into red blood cell membranes. Additional goals include evaluating changes in blood lipid levels, markers of inflammation, blood sugar metabolism, body weight, blood pressure, treatment adherence, and safety.

This study is sponsored by the Fundación del Caribe para la Investigación Biomédica and is conducted in adults who are receiving stable statin therapy. Participation in the study is voluntary, and all participants may withdraw at any time.

Read the detailed description

Mixed dyslipidemia is a metabolic condition characterized by elevated triglyceride levels and other lipid abnormalities and is associated with increased residual cardiovascular risk despite standard lipid-lowering therapy. Addressing lipid abnormalities beyond low-density lipoprotein cholesterol may help reduce this residual risk.

The Omega-3 Index is defined as the percentage of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in erythrocyte membranes and reflects long-term omega-3 fatty acid exposure and tissue incorporation. Higher Omega-3 Index values have been associated with more favorable cardiovascular risk profiles.

The chemical form of omega-3 fatty acids influences their absorption and bioavailability. Phospholipid-bound omega-3 formulations have demonstrated more efficient intestinal absorption and cellular membrane incorporation compared with conventional triglyceride-based formulations. This study was designed to evaluate whether different dose levels of a phospholipid-based omega-3 supplement result in greater changes in the Omega-3 Index compared with a conventional triglyceride-based omega-3 supplement.

This is a randomized, double-blind, parallel-group clinical trial with three study arms. Eligible participants are adults with mixed dyslipidemia receiving stable statin therapy. Participants are randomly assigned to receive either a phospholipid-based omega-3 supplement at a moderate dose, the same supplement at a higher dose, or a conventional omega-3 supplement in triglyceride form. All study products are administered orally once daily with food for a total duration of 24 weeks.

The primary objective of the study is to compare the Omega-3 Index at week 24 among treatment groups, adjusted for baseline values. Secondary objectives include evaluation of changes in lipid parameters, inflammatory biomarkers, glucose metabolism, anthropometric measures, blood pressure, treatment adherence, and safety outcomes.

The study is conducted in accordance with ethical principles for research involving human participants and has been approved by an institutional ethics committee. Participation is voluntary, and all participants provide written informed consent prior to any study-related procedures.

02

Conditions studied

  • Mixed Dyslipidemia

Keywords

  • Mixed dyslipidemia
  • Omega -3 Index
  • Phospholid omega-3
  • Triglycerides
  • EPA
  • DHA
  • Dietary Suplement
  • Cardiovascular Risk
03

In context

Lead sponsor

Fundación del Caribe para la Investigación Biomédica is the lead sponsor of 3 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

  • Inclusion Criteria:
  • Adults aged 18 years or older.
  • Diagnosis of mixed dyslipidemia.
  • Fasting triglyceride levels between 135 and 499 mg/dL.
  • Body mass index (BMI) ≥27 kg/m².
  • High-sensitivity C-reactive protein (hs-CRP) >2 mg/L.
  • Stable statin therapy for at least 8 weeks prior to enrollment.
  • Ability and willingness to provide written informed consent.

Exclusion Criteria:

  • Fasting triglyceride levels ≥500 mg/dL.
  • History of a recent cardiovascular event.
  • Significant hepatic or renal disease.
  • Pregnancy or breastfeeding.
  • Known allergy or hypersensitivity to fish or seafood.
  • Use of omega-3 supplements within 8 weeks prior to randomization.
  • Participation in another interventional clinical trial within 8 weeks prior to enrollment.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
105 participants (estimated)

Study arms

  • Experimental
    Ruby-O Moderate Dose

    Participants receive a phospholipid-based omega-3 supplement (Ruby-O) providing approximately 995 mg of EPA+DHA daily, administered orally once daily with meals for 24 weeks.

    Dietary Supplement: Phospholipid Omega-3

  • Experimental
    Ruby-O High Dose

    Participants receive a phospholipid-based omega-3 supplement (Ruby-O) providing approximately 1491 mg of EPA+DHA daily, administered orally once daily with meals for 24 weeks.

    Dietary Supplement: Phospholipid Omega-3

  • Experimental
    Conventional Omega-3

    Participants receive a conventional triglyceride-based omega-3 supplement providing EPA 900 mg and DHA 600 mg daily, administered orally once daily with meals for 24 weeks.

    Dietary Supplement: Triglyceride Omega-3

Interventions

  • Dietary supplementPhospholipid Omega-3

    Phospholipid-based omega-3 dietary supplement containing eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), administered orally once daily with meals for 24 weeks at a moderate dose level.

  • Dietary supplementPhospholipid Omega-3

    Phospholipid-based omega-3 dietary supplement containing eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), administered orally once daily with meals for 24 weeks at a higher dose level.

  • Dietary supplementTriglyceride Omega-3

    Conventional triglyceride-based omega-3 dietary supplement containing eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), administered orally once daily with meals for 24 weeks.

06

What researchers measure

Primary outcomes

  1. Omega-3 Index (O3I)

    The Omega-3 Index (O3I) is a continuous biochemical measure defined as the percentage of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in erythrocyte membranes, measured by standardized erythrocyte fatty acid analysis. It is expressed as a percentage (%), with values observed in adult populations typically ranging from approximately 2% (very low levels) to 15% (very high levels), although no absolute theoretical maximum is defined. Higher Omega-3 Index values indicate a more favorable cardiovascular risk profile. The primary analysis uses the value at week 24, adjusted for baseline.

    Time frame: Week 24

07

Study locations

1 site
  • Fundación del Caribe para la Investigación Biomédica (Fundación BIOS)
    Barranquilla, Atlántico 080020, Colombia
    • Miguel A Urina Triana, MD, PhD · Contact · murina@fundacionbios.org · Colombia
    • Miguel A Urina-Triana, MD, PhD · Principal investigator
08

References and documents

Publications

  • Harris WS, Von Schacky C. The Omega-3 Index: a new risk factor for death from coronary heart disease? Prev Med. 2004 Jul;39(1):212-20. doi: 10.1016/j.ypmed.2004.02.030. PubMed 15208005 ↗

Individual participant data

Plan to share: No — Individual participant data will not be shared because the study does not include a formal data-sharing plan and to protect participant privacy and confidentiality, in accordance with the informed consent and applicable data protection regulations.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 10, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07394517
Lead sponsor
Fundación del Caribe para la Investigación Biomédica
Collaborators
Naturmega
Responsible party
Miguel Urina-Triana PhD (Principal Investigator, Fundación del Caribe para la Investigación Biomédica) — Principal investigator
First posted
Feb 6, 2026
Start date
Mar 2026 (estimated)
Primary completion
Jan 2027 (estimated)
Completion
Mar 2027 (estimated)
Last update
Feb 10, 2026

Study contacts

Miguel A Urina, MD, PhD
Contact
murina@fundacionbios.org
573157219287

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Jan 2026. You cannot join it, but the record below documents what was studied.

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