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Obesity and Asthma: Nutrigenetic Response to Omega-3 Fatty Acids (NOOA)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01027143
Recruitment Status : Completed
First Posted : December 7, 2009
Last Update Posted : February 13, 2017
National Heart, Lung, and Blood Institute (NHLBI)
Office of Dietary Supplements (ODS)
Information provided by (Responsible Party):
Nemours Children's Clinic

Brief Summary:
This project will assess the effectiveness of omega-3 fatty acid supplementation in controlling asthma symptoms among obese asthmatics, and will assess if a person's genes influence response to treatment (personalized medicine). This project may improve our ability to treat asthma and our understanding of the link between obesity and asthma.

Condition or disease Intervention/treatment Phase
Asthma Obesity Dietary Supplement: omega-3 polyunsaturated fatty acids Drug: Omega-3 Fatty Acid Phase 2 Phase 3

Detailed Description:
Obesity increases the risk for asthma diagnosis in children and adults. With obesity on the rise, a better understanding of this association may become critically important to public health. We will determine the impact of fish oil-derived Eicosapentaenoic acid (EPA) and Docosahexaenoic acid (DHA) on asthma control among obese asthmatics. These omega-3 fatty acids have been shown to: reduce inflammation important to asthma and improve asthma outcomes in an inconsistent manner across previous smaller studies - results that are consistent with a pharmacogenetic influence. There exists evidence that omega-3 fatty acid response displays a pharmacogenetic response related to ALOX5 genotype. Preliminary data suggests that obese individuals are at greater risk for possessing this same ALOX5 variant and thus obese asthmatics may be more responsive to fish oil. We will determine (in a sub-aim) if there exists an ALOX5 genotype-related response effect with fish oil. This will be the largest clinical trial of omega-3 fatty acid for the treatment of asthma, and the first applying pharmacogenetic/nutrigenetic analysis.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 144 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Obesity & Asthma: Nutrigenetic Response to Omega-3 Fatty Acids
Study Start Date : July 2010
Actual Primary Completion Date : October 22, 2016
Actual Study Completion Date : October 22, 2016

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Asthma

Arm Intervention/treatment
Experimental: omega-3 fatty acids
3 softgels (EPA, DHA) twice daily
Dietary Supplement: omega-3 polyunsaturated fatty acids
ProEPA Xtra 1000mg softgels: 3 softgels twice daily
Other Name: ProEPA Xtra 1000mg softgels

Placebo Comparator: control
Soybean oil: 3 matched softgel caps twice daily
Drug: Omega-3 Fatty Acid
Soybean oil: 3(age 12-25) matched softgel caps twice daily
Other Name: Placebo Soybean oil 1000mg soft gels

Primary Outcome Measures :
  1. Asthma Control Questionnaire (Juniper) [ Time Frame: baseline, 12 weeks, 24 weeks ]

Secondary Outcome Measures :
  1. Asthma symptom exacerbation, plasma membrane PUFA composition, spirometry, peak flow, forced oscillation [ Time Frame: baseline, 12 weeks, 24 weeks ]

Information from the National Library of Medicine

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Ages Eligible for Study:   12 Years to 25 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • age 12-25
  • BMI > 25 (age 18-25) or BMI%>85th (age 12-17) (BMI Liberalized)
  • Physician diagnosis of persistent asthma
  • Lung function responsiveness by bronchodilator reversibility or bronchoprovocation testing

Exclusion Criteria:

  • pregnancy
  • currently taking LTRA for asthma control
  • other serious chronic medical condition
  • bleeding diathesis

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01027143

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United States, Florida
Nemours Children's Clinic
Jacksonville, Florida, United States, 32207
Nemours Children's Hospital/Dept of Pulmonology
Orlando, Florida, United States, 32827
University of South Florida, Morsani College of Medicine
Tampa, Florida, United States, 33612
Sponsors and Collaborators
Nemours Children's Clinic
National Heart, Lung, and Blood Institute (NHLBI)
Office of Dietary Supplements (ODS)
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Principal Investigator: Jason E. Lang, M.D. Duke Children's Hospital and Health Center
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Nemours Children's Clinic Identifier: NCT01027143    
Other Study ID Numbers: NCCJELK23
First Posted: December 7, 2009    Key Record Dates
Last Update Posted: February 13, 2017
Last Verified: March 2016
Keywords provided by Nemours Children's Clinic:
Additional relevant MeSH terms:
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Nutrition Disorders
Body Weight
Bronchial Diseases
Respiratory Tract Diseases
Lung Diseases, Obstructive
Lung Diseases
Respiratory Hypersensitivity
Hypersensitivity, Immediate
Immune System Diseases