Effects of Omega-3 Supplementation on the Cytokine and Lipid Profiles in Patients With Chronic Chagas Cardiomyopathy

September 8, 2016 updated by: Gilberto Marcelo Sperandio da Silva, Evandro Chagas Institute of Clinical Research

Effects of Omega-3 Polyunsaturated Fatty Acid Supplementation on the Cytokine and Lipid Profiles in Patients With Chronic Chagas Cardiomyopathy: a Randomized Controlled Clinical Trial

The objective of this trial is to study the effects of omega-3 PUFA supplementation on the inflammatory response and lipid profile in patients with chronic Chagas cardiomyopathy.

Study Type: Interventional

Study Design: A total 40 patients will be randomly assigned into two parallel groups. The intervention will be treatment with omega-3 PUFAs at a dose of 3 g/day for 8 weeks, compared to placebo (corn oil). The primary endpoints will be the concentrations of inflammatory markers (IL-1, IL-2, IL-4, IL-6, IL-10, TNF-alpha, IFN-γ, and TGF-β). Secondary endpoints will be the fasting glucose, lipid, and anthropometric profiles.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Several studies have shown the beneficial effects of polyunsaturated fatty acids on inflammatory processes, dyslipidemia, and cardiovascular diseases, there are no reports about food intake and PUFA supplementation in chronic Chagas cardiomyopathy patients. Thus, the objective of this study is to assess the effects of omega-3 PUFA supplementation on the lipid profile and the pro-inflammatory and anti-inflammatory cytokine profiles in chronic Chagas cardiomyopathy patients.

After patients are selected by cardiologists, they will be seen by study nutritionists, who will explain the study procedures to the patients and administer the free and informed consent form. The patients who agree to participate in the study will sign the consent form and undergo the initial assessment.

The following data will be collected and evaluated in the study: sociodemographic data (age, sex, ethnicity/race, education, and domicile), clinical data (functional class and vital signs), alcoholism, smoking, prescription drugs, 3-day food record, 24-hour recall, anthropometric assessment (height, weight, BMI, waist circumference, tricipital skinfold thickness, and arm circumference), lipid profile (total cholesterol, triglycerides, HDL-c, LDL-c, and VLDL-c), and cytokines (IL-1, IL-2, IL-4, IL-6, IL-10, TNF-alpha, IFN-γ, and TGF-β). Clinical, nutritional, and anthropometric assessments will take place immediately before starting the intervention and after 4 and 8 weeks during the study; lipid profile and cytokines will be evaluated before the intervention and at the end of 8 weeks. Each patient will be followed for 8 weeks.

Study Type

Interventional

Enrollment (Actual)

40

Phase

  • Early Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Brazil
    • Br
      • RJ, Br, Brazil, 21040-360
        • Evandro Chagas Institute of Clinical Research

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 85 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Volunteers with Chagas Cardiomyopathy at stage B (no heart failure symptoms but with segmental or global left ventricular systolic dysfunction), stage C (symptomatic heart failure), or stage D (end-stage heart failure)), according to the current Brazilian Chagas' Disease Consensus;
  • Subjects will include adults, men and women.

Exclusion Criteria:

  • diarrheal disease;
  • inflammatory bowel syndrome;
  • diagnosis of diabetes or other endocrine pathologies;
  • use of fibrates, niacin, or statins;
  • use of anti-inflammatory drugs;
  • pregnant and lactating women;
  • vitamin mineral or omega-3 supplementation during the previous 30 days;
  • hospital admission during the study;
  • presence of cardiomyopathies other than Chagas Cardiomyopathy.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: HEALTH_SERVICES_RESEARCH
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: TRIPLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Omega-3
This group is receiving omega-3 supplement.
Dietary supplement: Omega-3
The group omega-3 receives 5 capsules / day, each capsule containing 1100mg of lipids, and 600 mg of omega-3, 3g of omega-3 per day (1.8 g EPA and 1.2 g DHA) for a period of 8 weeks.
Other Names:
  • polyunsaturated fatty acids
  • Oil fish
  • omega 3 fatty acids
Placebo Comparator: Oil Corn
This group is receiving the placebo comparator.
Dietary supplement: Placebo Comparator
The group placebo receives 5 capsules / day of corn oil containing 1100mg each, for a period of 8 weeks.
Other Names:
  • Oil Corn

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Cytokine profile
Time Frame: 8 weeks
The primary endpoint of this study will be the cytokine profile. IL-1, IL-2, IL-4, IL-6, IL-10, TNF-alpha, IFN-γ, and TGF-β will be measured in the serum of patients using specific sandwich enzyme-linked immunosorbent assays. Capture and detection antibodies will be obtained from eBioscience (San Diego, CA, USA).
8 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Lipid profile
Time Frame: 8 weeks
Total cholesterol, triglycerides, and high-density lipoprotein cholesterol (HDL-c) will be measured with enzymatic-colorimetric assays using Siemens reagents on a Siemens Dimension RXL chemistry analyzer (Siemens Healthcare Diagnostics, Tarrytown, NY, USA). Low-density lipoprotein cholesterol (LDL-c) and VLDL-c will be calculated according to the Friedewald equation
8 weeks

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Anthropometric measures
Time Frame: 8 weeks
The anthropometric assessment will consist of body mass index (BMI), waist circumference, tricipital skinfold thickness, and arm circumference.
8 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Evandro Chagas Institute of Clinical Research

Collaborators

Andrea Silvestre de Sousa, MD PhD
Pedro Emmanuel Alvarenga Americano do Brasil, MD PhD
Roberto Magalhães Saraiva, MD PhD
Sergio Salles Xavier, MD PhD
Alejandro Marcel Hasslocher, MD MSc PhD student
Andrea Pereira de Souza, PhD
Claudia Santos de Aguiar Cardoso, MSc
Patricia Dias de Brito, PhD
Roberta Olmo Pinheiro, PhD
Paula Simplicio da Silva, MSc PhD student

Investigators

  • Study Director: Andrea S Sousa, MD PhD, Evandro Chagas Institute of Clinical Research

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2013

Primary Completion (Actual)

January 1, 2014

Study Completion (Actual)

December 1, 2015

Study Registration Dates

First Submitted

May 22, 2013

First Submitted That Met QC Criteria

May 23, 2013

First Posted (Estimate)

May 29, 2013

Study Record Updates

Last Update Posted (Estimate)

September 9, 2016

Last Update Submitted That Met QC Criteria

September 8, 2016

Last Verified

September 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 0037.0.009.000-10

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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