NCT00663871

Brief Summary

Omega-3 fatty acids are a certain kind of fish fat that has recently been shown to have health benefits. This study will examine the effectiveness of fish oil supplementation for reducing the early signs of heart disease risk and for improving mood, impulsivity, and anger levels.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
272

participants targeted

Target at P50-P75 for not_applicable cardiovascular-diseases

Timeline
Completed

Started Jun 2008

Longer than P75 for not_applicable cardiovascular-diseases

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 18, 2008

Completed
4 days until next milestone

First Posted

Study publicly available on registry

April 22, 2008

Completed
1 month until next milestone

Study Start

First participant enrolled

June 1, 2008

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2012

Completed
8.6 years until next milestone

Results Posted

Study results publicly available

May 12, 2021

Completed
Last Updated

June 11, 2021

Status Verified

May 1, 2021

Enrollment Period

4.3 years

First QC Date

April 18, 2008

Results QC Date

February 11, 2021

Last Update Submit

May 20, 2021

Conditions

Keywords

Fish OilOmega-3 fatty acidsAffectDepressionAngerNutritionImpulsivityAggressionCognitionBehavior

Outcome Measures

Primary Outcomes (15)

  • Circulating Serum Interleukin-6 (IL-6)

    Systemic inflammation: fasting serum Interleukin-6 (IL-6)

    Baseline and Month 4

  • C-reactive Protein (CRP)

    fasting serum C-reactive protein (CRP) in milligrams per liter (mg/L)

    baseline and month 4

  • Negative Affect

    Negative affect questions adapted from the Positive and Negative Affect Schedule - Expanded Form administered via ecological momentary assessment. The minimum value is 1, and the maximum value is 6. A higher score are worse (more negative affect).

    baseline and month 4

  • Impulsivity

    Barratt Impulsiveness Scale. The minimum value is 34, and the maximum value is 120. A higher score suggests a worse outcome.

    baseline and month 4

  • Aggression

    Bus-Perry Aggression Questionnaire. The minimum value is 14, and the maximum value is 53. A higher score suggests a worse outcome.

    baseline and month 4

  • Hostility, Barefoot Score

    The 27-item Barefoot Hostility Scale. The minimum value is 1, and the maximum value is 30. A higher score suggests a worse outcome.

    baseline and month 4

  • Trait Anger

    State-Trait Anger Expression Inventory. The minimum value is 10, and the maximum value is 40. A higher score suggests a worse outcome.

    baseline and month 4

  • Anger Expression

    State-Trait Anger Expression Inventory. The minimum value is 0, and the maximum value is 72. A higher score suggests a worse outcome.

    baseline and month 4

  • Type A, Total Score

    Structured Interview - Type A Behavior Pattern using the Interpersonal Hostility Assessment Technique (IHAT). The minimum value is 0, and the maximum value is 12. A higher score suggests a worse outcome.

    baseline and month 4

  • Mean Successive Difference in Inter-beat Intervals Natural Log Transformed Paced Respiration

    Mean successive difference in inter-beat intervals natural log transformed paced respiration in milliseconds

    baseline and month 4

  • High Frequency (.12 to .40 Hz) Heart Rate Variability Natural Log Transformed Paced Respiration

    High frequency (.12 to .40 Hz) heart rate variability natural log transformed paced respiration in Hertz units (Hz)

    baseline and month 4

  • Total Power (0 to .40 Hz) Heart Rate Variability Natural Log Transformed Paced Respiration

    Total power (0 to .40 Hz) heart rate variability natural log transformed paced respiration in Hertz (Hz) units.

    baseline and month 4

  • Mean Successive Difference in Inter-beat Intervals Natural Log Transformed Unpaced Respiration

    Mean successive difference in inter-beat intervals natural log transformed unpaced respiration in milliseconds (msec)

    baseline and month 4

  • High Frequency (.12 to .40 Hz) Heart Rate Variability Natural Log Transformed Unpaced Respiration

    High frequency (.12 to .40 Hz) heart rate variability natural log transformed unpaced respiration in Hertz (Hz) units

    baseline and month 4

  • Total Power (0 to .40 Hz) Heart Rate Variability Natural Log Transformed Unpaced Respiration

    Total power (0 to .40 Hz) heart rate variability natural log transformed unpaced respiration in Hertz (Hz) units

    baseline and month 4

Secondary Outcomes (5)

  • Executive Function

    Baseline and Month 4

  • Learning / Episodic Memory

    Baseline and Month 4

  • Psychomotor Speed

    Baseline and Month 4

  • Fluid Intelligence

    Baseline and Month 4

  • Moderation of Effects of Fish Oil on Inflammatory Markers by Select Genetic Polymorphisms

    Measured at Month 4

Other Outcomes (1)

  • Structural & Functional MRI

    Baseline and month 4

Study Arms (2)

Fish Oil

ACTIVE COMPARATOR

Participants will take fish oil supplements daily for 4 months.

Dietary Supplement: Fish Oil

Placebo

PLACEBO COMPARATOR

Participants will take soybean oil (placebo) supplements daily for 4 months.

Dietary Supplement: Soybean Oil (Placebo)

Interventions

Fish OilDIETARY_SUPPLEMENT

Participants will take 2 grams (1400 mg EPA and DHA) of fish oil supplements on a daily basis.

Also known as: Omega-3 Life Formula (PharmaOmega)
Fish Oil
Soybean Oil (Placebo)DIETARY_SUPPLEMENT

Participants will take 2 grams of soybean oil supplements on a daily basis.

Placebo

Eligibility Criteria

Age30 Years - 55 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Currently employed at least 25 hours a week, but does not regularly work the third shift (i.e., night shift)
  • English is primary language
  • Consumes less than 300 mg/day of long-chain omega-3 fatty acids.

You may not qualify if:

  • Serious allergy to fish (e.g., anaphylaxis, bronchospasm, serious skin reaction)
  • History of atherosclerotic disease (e.g., myocardial infarction) or treatment of angina or claudication (e.g., angioplasty)
  • Reported history of schizophrenia or bipolar disorder
  • Long-term hepatitis
  • Kidney failure
  • Stroke or other neurological disorder
  • Lung disease requiring drug treatment
  • Stage 2 high blood pressure, defined as systolic blood pressure of 160 mm Hg or greater and diastolic blood pressure of 100 mm Hg or greater
  • Alcohol consumption of more than five drinks per day each week (i.e., more than 35 alcoholic drinks each week)
  • Pregnant or breastfeeding
  • Currently taking any cardiovascular, psychotropic, glucocorticoid, lipid-lowering, insulin, or weight loss medications
  • Currently taking fish oil supplements

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Pittsburgh

Pittsburgh, Pennsylvania, 15260, United States

Location

Related Publications (12)

  • Muldoon MF, Ryan CM, Yao JK, Conklin SM, Manuck SB. Long-chain omega-3 fatty acids and optimization of cognitive performance. Mil Med. 2014 Nov;179(11 Suppl):95-105. doi: 10.7205/MILMED-D-14-00168.

    PMID: 25373092BACKGROUND
  • Leckie RL, Lehman DE, Gianaros PJ, Erickson KI, Sereika SM, Kuan DCH, Manuck SB, Ryan CM, Yao JK, Muldoon MF. The effects of omega-3 fatty acids on neuropsychological functioning and brain morphology in mid-life adults: a randomized clinical trial. Psychol Med. 2020 Oct;50(14):2425-2434. doi: 10.1017/S0033291719002617. Epub 2019 Oct 4.

  • Muldoon MF, Laderian B, Kuan DC, Sereika SM, Marsland AL, Manuck SB. Fish oil supplementation does not lower C-reactive protein or interleukin-6 levels in healthy adults. J Intern Med. 2016 Jan;279(1):98-109. doi: 10.1111/joim.12442. Epub 2015 Oct 26.

  • Ginty AT, Muldoon MF, Kuan DCH, Schirda B, Kamarck TW, Jennings JR, Manuck SB, Gianaros PJ. Omega-3 Supplementation and the Neural Correlates of Negative Affect and Impulsivity: A Double-Blind, Randomized, Placebo-Controlled Trial in Midlife Adults. Psychosom Med. 2017 Jun;79(5):549-556. doi: 10.1097/PSY.0000000000000453.

  • Cipollina C, Salvatore SR, Muldoon MF, Freeman BA, Schopfer FJ. Generation and dietary modulation of anti-inflammatory electrophilic omega-3 fatty acid derivatives. PLoS One. 2014 Apr 15;9(4):e94836. doi: 10.1371/journal.pone.0094836. eCollection 2014.

  • Muldoon MF, Ryan CM, Sheu L, Yao JK, Conklin SM, Manuck SB. Serum phospholipid docosahexaenonic acid is associated with cognitive functioning during middle adulthood. J Nutr. 2010 Apr;140(4):848-53. doi: 10.3945/jn.109.119578. Epub 2010 Feb 24.

  • Liu JC, Conklin SM, Manuck SB, Yao JK, Muldoon MF. Long-chain omega-3 fatty acids and blood pressure. Am J Hypertens. 2011 Oct;24(10):1121-6. doi: 10.1038/ajh.2011.120. Epub 2011 Jul 14.

  • Conklin SM, Harris JI, Manuck SB, Yao JK, Hibbeln JR, Muldoon MF. Serum omega-3 fatty acids are associated with variation in mood, personality and behavior in hypercholesterolemic community volunteers. Psychiatry Res. 2007 Jul 30;152(1):1-10. doi: 10.1016/j.psychres.2006.10.006. Epub 2007 Mar 23.

  • Conklin SM, Gianaros PJ, Brown SM, Yao JK, Hariri AR, Manuck SB, Muldoon MF. Long-chain omega-3 fatty acid intake is associated positively with corticolimbic gray matter volume in healthy adults. Neurosci Lett. 2007 Jun 29;421(3):209-12. doi: 10.1016/j.neulet.2007.04.086. Epub 2007 Jun 2.

  • Conklin SM, Manuck SB, Yao JK, Flory JD, Hibbeln JR, Muldoon MF. High omega-6 and low omega-3 fatty acids are associated with depressive symptoms and neuroticism. Psychosom Med. 2007 Dec;69(9):932-4. doi: 10.1097/PSY.0b013e31815aaa42. Epub 2007 Nov 8.

  • Conklin SM, Runyan CA, Leonard S, Reddy RD, Muldoon MF, Yao JK. Age-related changes of n-3 and n-6 polyunsaturated fatty acids in the anterior cingulate cortex of individuals with major depressive disorder. Prostaglandins Leukot Essent Fatty Acids. 2010 Feb-Mar;82(2-3):111-9. doi: 10.1016/j.plefa.2009.12.002. Epub 2010 Jan 8.

  • Muldoon MF, Erickson KI, Goodpaster BH, Jakicic JM, Conklin SM, Sekikawa A, Yao JK, Manuck SB. Concurrent physical activity modifies the association between n3 long-chain fatty acids and cardiometabolic risk in midlife adults. J Nutr. 2013 Sep;143(9):1414-20. doi: 10.3945/jn.113.174078. Epub 2013 Jul 24.

MeSH Terms

Conditions

Cardiovascular DiseasesMood DisordersInflammationDepressionImpulsive BehaviorAggressionBehavior

Interventions

Fish OilsSoybean Oil

Condition Hierarchy (Ancestors)

Mental DisordersPathologic ProcessesPathological Conditions, Signs and SymptomsBehavioral SymptomsAberrant Motor Behavior in DementiaSocial Behavior

Intervention Hierarchy (Ancestors)

OilsLipidsDietary Fats, UnsaturatedDietary FatsFatsFats, UnsaturatedPlant OilsPlant PreparationsBiological ProductsComplex MixturesFoodDiet, Food, and NutritionPhysiological PhenomenaFood and Beverages

Results Point of Contact

Title
Matthew F. Muldoon, MD, MPH
Organization
University of Pittsburgh, Heart and Vascular Institute

Study Officials

  • Matthew F. Muldoon, MD, MPH

    University of Pittsburgh

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

April 18, 2008

First Posted

April 22, 2008

Study Start

June 1, 2008

Primary Completion

October 1, 2012

Study Completion

October 1, 2012

Last Updated

June 11, 2021

Results First Posted

May 12, 2021

Record last verified: 2021-05

Data Sharing

IPD Sharing
Will not share

Locations