Omega-3 Supplementation for LIver VolumE Reduction Study (OLIVER) Study (OLIVER)

September 12, 2021 updated by: Khoo Teck Puat Hospital

Omega-3 has been postulated to reduce hepatic steatosis by reducing lipogenic gene expression, exerting anti- inflammation action, reducing oxidative stress and improving glycemic control.

A recent meta-analysis by Parker et al.[1] found that omega-3 supplementation is associated with improvement in liver fat content as well as on Aspartate Aminotransferase (AST) levels. Omega-3 supplementation has also found to be useful in reducing blood triglyceride levels [2].

Recent studies by Iannelli et al. (2013) and Abidin et al.(2017) have also found that a 1 month supplementation of 1.5g/day and 2g/day of omega-3 supplementation resulted in reduced hepatic volume of 20% and 34.88 cm3 respectively.

The investigator's hypothesis is that a 4 weeks course of Omega-3 (2 capsules of Blackmores Omega Daily Concentrated Fish Oil per day; Each capsule Concentrated omega-3 triglycerides- fish 1000mg containing Omega-3 Marine Triglycerides 600mg as: 360mg Eicosapentaenoic acid (EPA), 240mg Docosahexaenoic acid (DHA)) taken as supplement, without any other dietary intervention pre Bariatric Surgery decreases significantly liver volume and facilitate access during surgery. And that shrinkage of liver volume also translates to improve biochemical parameters of fatty liver disease

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

A total of 50 subjects booked for Bariatric Surgery with BMI up 45 will be recruited. Patients with pre-existing liver disease, excessive alcohol consumption and significant central obesity will be excluded.

Ultrasound examination of the liver with liver volume measurement, and blood tests, including Liver Function Tests (LFT) and platelet counts,is performed as part of the pre surgery work up.

The subjects are then given 4 weeks of Omega-3 supplements (2 capsules of Blackmores Omega Daily Concentrated Fish Oil per day: Concentrated omega-3 triglycerides- fish 1000mg (600mg Eicosapentaenoic acid (EPA), 1400mg Docosahexaenoic acid (DHA)).

Just before Surgery, a repeat of ultrasound examination and measurement of liver volume is carried out, as well as a repeat liver panel and platelet count.The subjects will have their weight and body composition recorded as well at this time.

At the time of the surgery, the surgeon makes a subjective assessment of the left lobe liver volume on a scale of 1 to 5, 5 being the largest. Additionally,ease of access to area under the left lobe of the liver is also subjectively assessed, on a scale of 1 to5, 5 being the most difficult.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
50

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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 Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Singapore
      • Singapore, Singapore, 587968
        • Recruiting
        • Khoo Teck Puat Hospital
        • Contact:
          • Deborah Ng, MBBS MMed (Surg)

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

21 years to 65 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Subjects qualifying and scheduled for Bariatric Surgery (as according to Singapore Health Promotion Board- Ministry of Health Obesity Clinical Practice GuidelineJune 2016)
  • BMI <45 with no significant central obesity.
  • Has no pre-existing liver disease, or excess alcohol consumption.

Exclusion Criteria:

  • Pre-existing liver disease
  • Excessive alcohol consumption
  • Prior history of allergy to omega-3 products, salmon or other- related products
  • central obesity
  • Pregnant

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: OTHER
  • Allocation: NA
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
EXPERIMENTAL: Omega-3 Supplementation
Proof of Concept and Safety Study of 4 weeks of Omega-3 supplementation pre- Bariatric Surgery
Dietary supplement: 2 capsules of Concentrated omega-3 triglycerides- fish 1000mg (600mg Eicosapentaenoic acid (EPA), 1400mg Docosahexaenoic acid (DHA)) per day
4 weeks course of Omega-3 (2 capsules of Blackmores Omega Daily Concentrated Fish Oil per day

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Changes of Liver Volume Facilitating Access during Bariatric Surgery
Time Frame: After 4 weeks of Omega-3 supplement
To demonstrate that Omega-3 oil taken as supplement, without any other dietary intervention pre Bariatric Surgery significantly changes liver volume and facilitates access during surgery.
After 4 weeks of Omega-3 supplement

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in Biochemical parameters (serum ALT levels) of fatty liver disease
Time Frame: After 4 weeks of Omega-3 supplement
To demonstrate changes in liver volume also translates to improved biochemical parameters (serum Alanine Aminotransferase levels) of fatty liver disease.
After 4 weeks of Omega-3 supplement
Change in Biochemical parameters (serum AST levels) of fatty liver disease
Time Frame: After 4 weeks of Omega-3 supplement
To demonstrate changes in liver volume also translates to improved biochemical parameters (serum Aspartate Aminotransferase levels) of fatty liver disease.
After 4 weeks of Omega-3 supplement
Change in Biochemical parameters (serum Platelet levels) of fatty liver disease
Time Frame: After 4 weeks of Omega-3 supplement
To demonstrate changes in liver volume also translates to improved biochemical parameters (serum Platelet levels) of fatty liver disease.
After 4 weeks of Omega-3 supplement

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Khoo Teck Puat Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Anton Cheng, MBBS FRCS, Khoo Teck Puat Hospital
  • Principal Investigator: Deborah Ng, MBBS MMed, Khoo Teck Puat Hospital
  • Study Director: Tan Chun Hai, MBBS FRCS, Khoo Teck Puat Hospital
  • Study Director: Lim Kheng Tian, MBBS FRCS, Khoo Teck Puat Hospital
  • Study Director: Tan Bo Chuan, MBBS FRCS, Khoo Teck Puat Hospital
  • Study Director: Babu Suresh Balasubramaniam, MBBS FRCR, Khoo Teck Puat Hospital

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

Helpful Links

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 (ACTUAL)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 17, 2019

Primary Completion (ANTICIPATED)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2022

Study Completion (ANTICIPATED)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 1, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 28, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 31, 2019

First Posted (ACTUAL)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 3, 2019

Study Record Updates

Last Update Posted (ACTUAL)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 14, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 12, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • OLIVER 1.3

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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