This trial is active, not recruiting.

Condition non-small cell lung cancer
Treatments eaa+leu vs total aa, total aa vs eaa+leu
Sponsor Texas A&M University
Collaborator University of Arkansas
Start date July 2010
End date December 2015
Trial size 47 participants
Trial identifier NCT01172314, 112254


Weight loss commonly occurs in lung cancer patients, negatively influencing their quality of life, treatment response and survival. Gains in lean body mass are difficult to achieve in cancer unless specific metabolic abnormalities are targeted. It is our hypothesis that a nutritional supplement containing a high amount of essential amino acids will target the metabolic alterations of cancer patients. Preliminary research performed in our laboratory in elderly supports this hypothesis. We hypothesize that intake of an essential amino acid nutritional supplement will positively influence protein synthesis rate in advanced non-small cell lung cancer (NSCLC) patients. Furthermore, insight in the underlying mechanism of the higher anabolic response of the essential amino acid supplement will be examined. This information will potentially enable us to formulate a supplement that is more effective than normal food intake, and that will reduce the need for muscle protein breakdown.

United States No locations recruiting
Other countries No locations recruiting

Study Design

Allocation randomized
Endpoint classification efficacy study
Intervention model crossover assignment
Masking double blind (subject, investigator)
eaa+leu vs total aa
15 g as a bolus
total aa vs eaa+leu
15 g as a bolus

Primary Outcomes

Acute change in Net whole body protein synthesis rate
time frame: Up to 2 years

Secondary Outcomes

Acute change in Whole body myofibrillar protein breakdown rate
time frame: Up to 2 years
Acute change in Whole body collagen breakdown rate
time frame: Up to 2 years
Acute change in Urea turnover rate
time frame: Up to 2 years
Acute change in Arginine turnover rate
time frame: Up to 2 years
Acute change in Liver protein synthesis rate
time frame: Up to 2 years
Acute change in plasma Insulin concentrations
time frame: Up to 2 years
Acute change in plasma Amino acid concentrations
time frame: Up to 2 years
Acute change in plasma Glucose concentrations
time frame: Up to 2 years

Eligibility Criteria

Male or female participants at least 40 years old.

Inclusion Criteria: 1. Recently diagnosed with Stage III (unresectable) or Stage IV lung cancer (only for the NSCLC group) 2. Ability to sign informed consent 3. Age 40 years and older Exclusion Criteria: 1. Previous anti-cancer therapy (e.g. radiotherapy, chemotherapy) or surgery less than 4 weeks prior to the experiment. 2. Presence of fever within the last 3 days 3. Established diagnosis of Diabetes Mellitus 4. BMI > 35 kg/m2 5. Untreated metabolic diseases including hepatic or renal disorder 6. Presence of acute illness or metabolically unstable chronic illness 7. Use of long-term oral corticosteroids or short course of oral corticosteroids in the preceding month before enrollment 8. Diagnosis of moderate to severe chronic airflow limitation, defined as measured forced expiratory volume in one second (FEV1) ≤ 70% of referen¬ce FEV1 (only for the healthy control group) 9. Use of supplements enriched with amino acids 10. Any other condition according to the PI or study physicians would interfere with proper conduct of the study / safety of the patient 11. Failure to give informed consent

Additional Information

Official title Effects of Essential Amino Acid Intake on Net Protein Synthesis in Weight-losing Non-small Cell Lung Cancer Patients
Principal investigator Marielle PK Engelen, PhD
Description In this study, we will test the following hypothesis: A high-leucine essential amino acid mixture stimulates whole body protein synthesis (and in this way protein anabolism) to a larger extent than a regular balanced mixture of total (essential and non-essential) amino acids in NSCLC patients with and without recent weight loss. The principal endpoint will be the extent of stimulation of protein synthesis rate as this is the principal mechanism by which either amino acid or protein intake causes muscle anabolism. This project will provide important clinical information, based on novel fundamental basic knowledge on the process and the specific underlying mechanisms of muscle wasting in patients with NSCLC, and the role of EAA as a potential anabolic substrate. In this way, it will provide preliminary data for the development of nutritional strategies that will prevent or even stop this process of ongoing muscle loss in NSCLC.
Trial information was received from ClinicalTrials.gov and was last updated in November 2014.
Information provided to ClinicalTrials.gov by Texas A&M University.