Metabolism of Lipids in Advanced Cancer

NCT ID: NCT00962234

Last Updated: 2016-02-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Total Enrollment

12 participants

Study Classification

OBSERVATIONAL

Study Start Date

2009-10-31

Study Completion Date

2011-10-31

Brief Summary

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The causes of failing nutrition status in advanced cancer are not well known. The way fat is moved, stored, burned or changed into other compounds may be affected and will be followed in patients using a tracer and other blood tests. The investigators hypothesize that fat loss and wasting results from low essential fatty acid availability in the body. Changes may occur in the liver that limits distribution and availability of fat to the body as an energy source or for other essential functions.

Detailed Description

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Weight loss in cancer is the result of breakdown of fat (lipid) and muscle protein reserves. This research will explore how people with cancer use fat in their body through the use of tracers and measures in the blood. A stable isotope of hydrogen called 'deuterium' is used to trace the production of different fats by the liver. Other methods will determine how much and what types of fat are transported around the body. Body composition will be determined by CT scan and related to fat measures.

Conditions

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Lung Neoplasms Cachexia

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Metabolism

Lung cancer patients who exhibit abnormalities in lipid measures.

Blood draws

Intervention Type OTHER

Up to 4 blood draws will be required, in the amount of about 10 mL each

Oral administration of stable isotope (deuterium)

Intervention Type BIOLOGICAL

1 mg deuterium-labeled water/kg body water (loading dose), and 0.5 mg/kg body water diluted in 1 L of normal water (maintenance dose) to be consumed over the following 16 hours

Metabolic rate testing

Intervention Type PROCEDURE

Metabolic rate testing is a painless, non-invasive test that takes about 1h. A metabolic cart is used, which detects the amount of oxygen and carbon dioxide the body uses. Patients will lie down on a bed for 30 minutes with lights dimmed and soft music to help them relax. After 30 minutes, a canopy will be placed over the patient's head and shoulders for 30 minutes for the analysis of breath samples. This test will be performed only once for this study.

Interventions

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Blood draws

Up to 4 blood draws will be required, in the amount of about 10 mL each

Intervention Type OTHER

Oral administration of stable isotope (deuterium)

1 mg deuterium-labeled water/kg body water (loading dose), and 0.5 mg/kg body water diluted in 1 L of normal water (maintenance dose) to be consumed over the following 16 hours

Intervention Type BIOLOGICAL

Metabolic rate testing

Metabolic rate testing is a painless, non-invasive test that takes about 1h. A metabolic cart is used, which detects the amount of oxygen and carbon dioxide the body uses. Patients will lie down on a bed for 30 minutes with lights dimmed and soft music to help them relax. After 30 minutes, a canopy will be placed over the patient's head and shoulders for 30 minutes for the analysis of breath samples. This test will be performed only once for this study.

Intervention Type PROCEDURE

Other Intervention Names

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C/D/N Isotopes, Deuterium Oxide, CAS No: 7789-20-0

Eligibility Criteria

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Inclusion Criteria

* Low plasma phospholipids OR low plasma ratio of triglycerides to free fatty acids
* Recent weight loss
* Advanced stage lung cancer (Stage 3 or 4)

Exclusion Criteria

* Having symptoms that may affect measures of fat metabolism (nausea, vomiting, problems swallowing, etc.)
* Taking n-3 fatty acid supplements such as fish oil
Minimum Eligible Age

18 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Cross Cancer Institute

OTHER

Sponsor Role collaborator

AHS Cancer Control Alberta

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Vera Mazurak, PhD

Role: PRINCIPAL_INVESTIGATOR

AHS Cancer Control Alberta

Locations

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Cross Cancer Institute

Edmonton, Alberta, Canada

Site Status

Countries

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Canada

Related Links

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Other Identifiers

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CIHR PIN 111846

Identifier Type: -

Identifier Source: secondary_id

CIHR PIN 111846/ethics 24906

Identifier Type: -

Identifier Source: org_study_id

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