Non-Invasive Assessment of Skeletal Muscle Loss in Cancer Patients - Phase II (3MH-2)
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Purpose
The overall aim of this research is to develop a non-invasive approach to evaluate the production of 3-methylhistidine (3MH)in cancer patients, as a potential means of determining which patients are at high risk for future development of cancer induced skeletal muscle atrophy.
Rationale: The approach is based on the hypothesis that after an oral dose of deuterated 3-methylhistidine (D-3MH), the slope of the terminal portion of the decay curve (> 12 hours post-dosing) for the tracer/tracee (D-3MH/3MH) in the free 3MH pool is proportional to the rate constant for myofibrillar protein degradation and can be determined from spot urine samples.
| Condition | Intervention | Phase |
|---|---|---|
|
Cachexia |
Biological: (non-radioactive) Oral deuterated 3-methylhistidine (D-3MH) |
Phase 2 |
| Study Type: | Observational |
| Study Design: | Observational Model: Case-Only Time Perspective: Prospective |
| Official Title: | Non-Invasive Assessment of Skeletal Muscle Loss in Cancer Patients - Phase 2 |
- Determination of myofibrillar protein degradation rate constant and slope of terminal decay curve. [ Time Frame: Spot urine (multiple) collections between 12 to 17 hours of D-3MH ingestion. ] [ Designated as safety issue: No ]
Biospecimen Retention: Samples Without DNA
Spot urine samples.
| Estimated Enrollment: | 30 |
| Study Start Date: | November 2012 |
| Estimated Study Completion Date: | June 2016 |
| Estimated Primary Completion Date: | March 2016 (Final data collection date for primary outcome measure) |
| Groups/Cohorts | Assigned Interventions |
|---|---|
|
Newly Diagnosed NSCLC patients
In this study, newly diagnosed NSCLC patients who are not candidates for curative resection, will receive a (non-radioactive) oral dose of deuterated 3-methylhistidine (D-3MH).
|
Biological: (non-radioactive) Oral deuterated 3-methylhistidine (D-3MH)
Oral dose of 9.0 mg (50 μmol) TAU-METHYL-L-HISTIDINE (METHYL-D3), Cambridge Isotope Laboratory, Cambridge, Massachusetts.
|
Detailed Description:
The long-term objective of this research is to develop a non-invasive approach for assessment of de novo 3MH production in cancer patients early in the course of the disease as a way of assessing which patients are at high risk for future development of skeletal muscle atrophy. The approach is based on: 1) the known increase in de novo production of 3-methylhistidine (3MH) from muscle protein breakdown in said patients as a consequence of their unique disease-host interactions, and 2) earlier demonstration that de novo 3MH production can be measured in vivo using isotope dilution.
During this Phase-II project, we propose to conduct a statistically powerful prospective investigation to demonstrate that measurement of the slope of the terminal decay curve (rate constant) with our approach in newly diagnosed cancer patients predicts future development of muscle wasting. We expect the outcome of the combined Phase-I and Phase-II research to lead to the early identification of elevated muscle catabolism in at-risk patients so that medical intervention can prevent future muscle atrophy.
Eligibility| Ages Eligible for Study: | 18 Years and older |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
| Sampling Method: | Non-Probability Sample |
We will conduct a longitudinal study (repeated measures design) in 30 newly diagnosed nonsmall cell lung cancer (NSCLC) patients who are not candidates for curative resection.
Inclusion Criteria:
- (1) histological or cytological evidence of NSCLC without curative options;
- (2) over 18 years of age;
- (3) patient reported weight loss of ≤5% of usual body weight in the last 6 months;
- (4) life expectancy of greater than 6 months based on the judgement of treating physician;
- (5) serum creatinine ≤1.5 times the upper limit of normal; and
- (6) willing and able to give informed consent.
Exclusion Criteria:
- 1) malabsorption, intractable vomiting or gastrointestinal obstruction
- 2) congestive heart failure
- 3) edema or ascites
- 4) liver function test results that will preclude administration of prescribed therapy
- 5) pregnant, nursing, or, if of child-bearing age, unwilling to use contraceptives
Contacts and Locations| Contact: Kathleen M. Randolph, B.S. | 409 772 8126 | kmrandol@utmb.edu |
| Contact: William J. Durham, PhD | 409 772 8702 | wjdurham@utmb.edu |
| United States, Texas | |
| University of Texas Medical Branch | Recruiting |
| Galveston, Texas, United States, 77555-0361 | |
| Principal Investigator: | William J Durham, PhD | The University of Texas Medical Branch (UTMB Health), Galveston, Texas. |
More Information
No publications provided
| Responsible Party: | The University of Texas, Galveston |
| ClinicalTrials.gov Identifier: | NCT01694602 History of Changes |
| Other Study ID Numbers: | 12-064, 2R44AR054993-02 |
| Study First Received: | September 24, 2012 |
| Last Updated: | May 15, 2013 |
| Health Authority: | United States: Food and Drug Administration |
Keywords provided by The University of Texas, Galveston:
|
Cachexia Sarcopenia De Novo Deuterated |
Additional relevant MeSH terms:
|
Cachexia Emaciation Weight Loss |
Body Weight Changes Body Weight Signs and Symptoms |
ClinicalTrials.gov processed this record on May 16, 2013