The QUALITY Vets Project: Muscle Quality and Kidney Disease
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ClinicalTrials.gov Identifier: NCT03160326 |
Recruitment Status : Unknown
Verified November 2018 by Washington D.C. Veterans Affairs Medical Center.
Recruitment status was: Recruiting
First Posted : May 19, 2017
Last Update Posted : November 9, 2018
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Condition or disease |
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Chronic Kidney Disease Sarcopenia |
The accelerated muscle wasting associated with chronic kidney disease (CKD) is a source of morbidity and an increased incidence of bone fracture secondary to falls. However, sarcopenia secondary to CKD is not routinely screened or assessed in this patient population. This protocol, "Quantitative Ultrasound Assessment of Lean and Intramuscular Adipose Tissue in Veterans Project" (i.e., QUALITY VETS) is a VA Center for Innovation (VACI) funded pilot study with the purpose of using a clinically viable sarcopenia screening approach for Veterans with CKD who are currently receiving care at the Renal Service.
The investigative team will screen and assess diminished muscle mass, quality, and performance in Veterans with CKD (Stage 3 and 4), and also examine the relationship between the muscle characteristics and estimated fall risk within the sample. Key outcome measures will be obtained within the domains of muscle performance (peak grip strength), functional status (Short Physical Performance Battery), estimates of tissue/body composition (diagnostic ultrasound and DXA), and fall risk (Timed Up-and-Go test). Secondary measures will include questionnaires regarding of fall avoidance, physical activity, depression, and quality of life (QoL).
The general analysis approach will be to characterize the proportion of participants with: sarcopenia based on the European Working Group on Sarcopenia in Older People (EWGSOP) algorithm, low muscle quality based on preliminary echogenicity cut off values and criterion strength values, and an elevated risk of falling based on the Timed Up-and-Go age-dependent cut off values. Investigators will determine the magnitude of association between the skeletal muscle outcomes and fall risk within the participant sample. Hazard ratios will be used to estimate the impact of the sarcopenia classification and echogenicity values on the positive classification of fall risk.
The optimal treatment of Veterans with CKD who have an elevated risk of falls may be enhanced by the timely identification of accelerated muscle changes. The QUALITY-VETS Project will help to determine appropriate screening and assessment strategies that could be implemented in subsequent longitudinal studies involving exercise interventions and fall prevention training.
Study Type : | Observational |
Estimated Enrollment : | 75 participants |
Observational Model: | Case-Only |
Time Perspective: | Cross-Sectional |
Official Title: | The Quantitative Ultrasound Assessment of Lean and Intramuscular Adipose Tissue in Veterans With Chronic Kidney Disease |
Study Start Date : | September 2016 |
Estimated Primary Completion Date : | October 2019 |
Estimated Study Completion Date : | March 2020 |

- Muscle Quality [ Time Frame: day 1 ]Muscle measurements at 6 sites using diagnostic ultrasound (grayscale levels, 0-255)
- Lean Body Mass [ Time Frame: day 1 ]Dual Energy X-ray Absorptiometry (DXA) scan (kg/m2)
- Grip Strength [ Time Frame: day 1 ]Measured using a dynamometer (kg)
- Short Physical Performance Battery [ Time Frame: day 1 ]Performance-based functional assessment battery; scores range from 0 (worst performance) to 12 (best performance)
- Timed Up-and-Go [ Time Frame: day 1 ]Performance-based fall risk assessment
- Height [ Time Frame: day 1 ]Participant height in meters
- Weight [ Time Frame: day 1 ]Participant weight in kilograms
- Hip/waist circumference [ Time Frame: day 1 ]Participant hip and waist circumference in centimeters
- Body composition [ Time Frame: day 1 ]Body composition data in presented in percentages of the body composed of water, bone, muscle, and fat using a bioelectric scale
- Isometric peak knee extension force [ Time Frame: day 1 ]Measured using a load cell
- Activities-Specific Balance Confidence Scale [ Time Frame: day 1 ]Mobility questionnaire
- SF-36 - Physical Function Scale [ Time Frame: day 1 ]General physical functioning questionnaire
- Falls Efficacy Scale [ Time Frame: day 1 ]Fall avoidance behavior questionnaire
- Physical Activity Scale for the Elderly [ Time Frame: day 1 ]Self-reported estimate physical activity
- Sarcopenia-specific QoL scale (SarQoL) [ Time Frame: day 1 ]Self-reported health-related quality of life
- CES-D [ Time Frame: day 1 ]Depression Scale

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Ages Eligible for Study: | 18 Years to 84 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Ambulatory patients (with or without a gait aid)
- 18-84.9 years of age with CKD stage 3 or 4
- Receiving care at the DC or SF VA Medical Center Renal Service
- Able to speak and read English
- Orientation to person, place, and time
Exclusion Criteria:
- Acute renal failure
- Pregnancy
- Any uncontrolled cardiovascular or musculoskeletal disease that, in the opinion of the principal investigator, could make participation unsafe
- Body size exceeds the dimensional limits of the DXA scanner

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03160326
Contact: Cynthia Delgado, MD | 415-221-4810 ext 22592 | Cynthia.Delgado@ucsf.edu | |
Contact: Michael Harris-Love, DSc | 202-745-8000 ext 57640 | Michael.Harris-Love@va.gov |
United States, California | |
San Francisco VA Medical Center | Recruiting |
San Francisco, California, United States, 94121 | |
Contact: Julie Doyle 415-221-4810 ext 2597 Julie.Doyle2@va.gov | |
Principal Investigator: Cynthia Delgado, MD | |
United States, District of Columbia | |
Washington DC VA Medical Center | Recruiting |
Washington, District of Columbia, United States, 20422 | |
Contact: Brian M Hoover, MS 202-745-8000 ext 55826 Brian.Hoover@va.gov | |
Principal Investigator: Michael Harris-Love, DSc | |
Sub-Investigator: Haniel Hernandez, DPT | |
Sub-Investigator: Sholey Argani, MD | |
Sub-Investigator: Marc Blackman, MD |
Principal Investigator: | Cynthia Delgado, MD | San Francisco VA Medical Center |
Responsible Party: | Washington D.C. Veterans Affairs Medical Center |
ClinicalTrials.gov Identifier: | NCT03160326 |
Other Study ID Numbers: |
AM-251-12-11-2015 |
First Posted: | May 19, 2017 Key Record Dates |
Last Update Posted: | November 9, 2018 |
Last Verified: | November 2018 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | Data will be shared between the two study sites: the Washington DC and San Francisco VA Medical Centers |
chronic kidney disease ultrasound muscle loss |
Sarcopenia Kidney Diseases Renal Insufficiency, Chronic Urologic Diseases Renal Insufficiency Muscular Atrophy |
Neuromuscular Manifestations Neurologic Manifestations Nervous System Diseases Atrophy Pathological Conditions, Anatomical |