Efficacy and Safety of Omega 3 Fatty Acid Supplements on Heavy Smokers (Omega)

May 3, 2019 updated by: British Columbia Cancer Agency

A Phase II Randomized Cross-over Study of the Efficacy and Safety of Omega 3 Fatty Acid Supplements on Lung Cancer-Promoting Inflammatory Markers in Heavy Smokers

The study duration is 12 months. The initial enrollment visit will take approximately one hour. The Month 1, 3, 6, 7, 9 and 12 visits will take approximately 30 minutes each. The three telephone visits will take approximately 10 minutes each. The total time commitment to the study will be approximately four and a half hours.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

The table below explains what will be done at each study visit:

Prior to Pre-Registration Informed Consent. Questionnaire (asking about your risks for lung cancer, diet and medications including food supplement). Blood test for CRP level

Prior to Registration/Randomization Blood test for CRP level (about 6 ml or 1 teaspoon) Pregnancy test (either blood or urine, for woman with childbearing potential only)

Registration/Randomization Medical history Physical exam (Vital signs/Body height and weight) Receive 3 month supply of Omega 3 fatty acids for treatment first group. Blood tests for Fasting Blood insulin, etc (about 15 ml or 3 teaspoons) Receive a diary to record the amount of study medication you take each day and any side effects you may experience

Week 2 telephone interview Ask about side effects you may be having Ask about other medications you may be taking Review study agent diary

Month 1 visit (you will not be able to eat anything for 10 hours before the appointment) Blood test for Fasting Blood insulin, etc (15 ml or 3 teaspoons) -( All participants)

Treatment Group:

Ask about side effects you may be having Ask about other medications you may be taking Review study medication diary

Month 2, 4, and 5 telephone interview Review diary Ask about side effects you may be having Ask about other medications you may be taking

Month 3 visit (you will not be able to eat anything for 10 hours before the appointment) Physical exam with vital signs Repeat blood tests (about 15 ml or 3 teaspoons) (All participants)

Treatment Group:

Collect unused omega 3 (for treatment group) Receive next 3 month supply of omega 3 (for treatment group) Review study medication diary Ask about side effects you may be experiencing Ask about other medications you may be taking

Month 6 or end of study visit (if left study early for any reason) Physical exam with vital signs Blood tests (about 15 ml or 3 teaspoons) - All participants

Treatment Group:

Review and collect study agent diary Ask about side effects you may be having Ask about other medications you may be taking

Month 7-12 Cross over study Treatment group will become observation group Observation group will become treatment group with the same procedures in month 1 to 6

Study Type

Interventional

Enrollment (Anticipated)

42

Phase

  • Phase 2

Contacts and Locations

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

Study Contact

Study Contact Backup

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

53 years to 78 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Are between the ages of 55 and 80 years
  • Are a current or former smoker with a 30 pack-year (e.g. one pack of cigarettes a day for 30 years) smoking history or
  • Have a greater than 1.51% chance of developing lung cancer in the next six years based on the investigator's risk prediction tool
  • Have elevation of a marker of inflammation called C-Reactive Protein (CRP)
  • Are capable of providing informed consent to participate in the study

Exclusion Criteria:

  • Have been previously diagnosed with lung cancer
  • Have had other non-curatively treated cancer outside the lung.
  • Have any medical condition, such as severe heart disease (e.g. unstable angina, chronic congestive heart failure), acute or chronic respiratory failure, home oxygen therapy, bleeding disorder, that in the opinion of the investigator could jeopardize your safety during participation in the study or unlikely to benefit from screening due to shortened life-expectancy from the co-existing illnesses
  • Are currently taking omega 3 fatty acid supplements

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: Screening
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Group 1: Omega 3 Fatty Acid
Omega 3 fatty acids for 6 months and then off omega 3 fatty acids for the next 6 months. In the first 6 months, you will be asked to take one capsule of Omega 3 fatty acids with breakfast and 1 with dinner/day for the first week, 2 capsules in the morning and one capsule in the evening for the second week and then 2 capsules with breakfast and 2 with dinner/day for the remaining 24 weeks. In the next 6 months (Months 7 to 12), you will have a blood test for markers of inflammation at the end of Month 7 and at Month 9 and 12 to determine if the anti-inflammatory effects of Omega 3 acids are still there after you have stopped taking it.
Drug: Omega 3 fatty acid
To evaluate the efficacy of 3.6 g omega 3 fatty acid supplements (2.4 g EPA + 1.2 g DHA)/day for 6 months versus no treatment at reducing the level of C-reactive protein (CRP) in ever smokers at high risk of lung cancer. The primary endpoint of the study is reduction of CRP.
Other Names:
  • Omega 3
  • DHA
  • EPA
Placebo Comparator: Group 2: Control Arm
No Omega 3 fatty acids for the first 6 months followed by Omega 3 fatty acids for the next 6 months. You will be asked to have a blood test for markers of inflammation at Month 1, 3 and 6 for markers of inflammation to determine the natural variation of the levels of these markers without Omega 3 fatty acid supplements. In Month 7, you will be asked to take one capsule of Omega 3 with breakfast and 1 with dinner/day for the first week, 2 capsules in the morning and one capsule in the evening for the second week and then 2 capsules with breakfast and 2 with dinner/day for the remaining 24 weeks.
Drug: Omega 3 fatty acid
To evaluate the efficacy of 3.6 g omega 3 fatty acid supplements (2.4 g EPA + 1.2 g DHA)/day for 6 months versus no treatment at reducing the level of C-reactive protein (CRP) in ever smokers at high risk of lung cancer. The primary endpoint of the study is reduction of CRP.
Other Names:
  • Omega 3
  • DHA
  • EPA

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in CRP levels in participants from both arms
Time Frame: 1 year
Blood will be collected over the duration of the study
1 year

Collaborators and Investigators

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

Sponsor

British Columbia Cancer Agency

Collaborators

Lotte & John Hecht Memorial Foundation

Investigators

  • Principal Investigator: Stephen Lam, MD, BC Cancer Research Ctr

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 (Anticipated)

June 1, 2019

Primary Completion (Anticipated)

June 1, 2021

Study Completion (Anticipated)

June 1, 2022

Study Registration Dates

First Submitted

April 24, 2019

First Submitted That Met QC Criteria

May 2, 2019

First Posted (Actual)

May 3, 2019

Study Record Updates

Last Update Posted (Actual)

May 7, 2019

Last Update Submitted That Met QC Criteria

May 3, 2019

Last Verified

April 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • H19-00221

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

IPD Plan Description

Individual participant data will not be shared with other researchers

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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