People with HIV experience earlier impairments in physical function compared to people in the general population. They also exhibit an earlier presentation and more rapid development of frailty, a multisystemic syndrome of aging characterized by reduced activity, fatigue, slowness, weakness, and weight loss. While exercise can improve physical function in people with HIV, it is less effective in doing so than in the general population and is difficult to sustain in the long-term. The goal of this clinical trial is to learn whether the medication tesamorelin will improve physical function and muscle health in adults with HIV when combined with exercise. Tesamorelin is a growth hormone-releasing hormone analogue that is FDA-approved to treat abdominal fat accumulation in people with HIV. While tesamorelin has also been shown to increase muscle mass and improve measures of muscle health, its effects on physical performance and muscle strength have not yet been evaluated. During a 24-week intervention phase, half of participants will be randomly assigned to receive tesamorelin and half of participants will be randomly assigned to receive placebo (a look-alike substance that contains no drug). All participants also will engage in a home-based exercise intervention supervised by an exercise coach. During a subsequent 24-week extension phase, individuals will be monitored off study drug and supervised exercise, and be encouraged to continue to exercise independently. The investigators will investigate effects of tesamorelin on physical function, muscle mass and quality, quality of life, and exercise adherence and self-efficacy. They also will evaluate whether effects of tesamorelin are maintained following treatment cessation. This study may identify an important strategy to improve how individuals aging with HIV function and feel with potential applications to other patient populations.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
100
Tesamorelin WR 1.28 mg given subcutaneously daily
Identical placebo injection given subcutaneously daily
Home-based semi-supervised exercise program
University of Colorado - Anschutz Medical Campus
Aurora, Colorado, United States
RECRUITINGMassachusetts General Hospital
Boston, Massachusetts, United States
RECRUITINGChange in Repeated Chair Stand Time
Time to complete 10 repeated chair stands
Time frame: Baseline to Week 24
Change in Standard and Modified Short Physical Performance Battery (SPPB)
Objective assessment of physical function that includes measures of balance, gait, and strength
Time frame: Baseline to Week 24
Change in 1-Repetition Maximum Leg Press
Maximal weight that can be lifted by lower extremities once using correct form through full range of motion
Time frame: Baseline to Week 24
Change in 400-Meter Walk Time
Time to walk 400 meters at the fastest pace possible
Time frame: Baseline to Week 24
Change in Appendicular Lean Tissue Mass
Dual-energy x-ray absorptiometry (DXA) lean tissue mass in all four extremities
Time frame: Baseline to Week 24
Change in Cross-Sectional Area of Trunk and Thigh Muscles
Computed tomography (CT) cross-sectional area of trunk and thigh muscles
Time frame: Baseline to Week 24
Change in Frailty Phenotype
Fried Frailty Phenotype score, scored from 0 to 5 with higher indicating worse
Time frame: Baseline to Week 24
Change in Quality of Life
36-Item Short Form Health Survey (SF-36), scored from 0 to 100 with higher indicating better
Time frame: Baseline to Week 24
Change in Exercise Self-Efficacy
Exercise Self-Efficacy Scale, scored from 0 to 100 with higher indicating better
Time frame: Baseline to Week 24
Change in Exercise Adherence
FitBit (step count heart rate time), exercise log (movement type, repetitions, load, rate of perceived exertion)
Time frame: Baseline to Week 24
Change in Tissue Density of Trunk and Thigh Muscles
Computed tomography (CT) attenuation of trunk and thigh muscles
Time frame: Baseline to Week 24
Change in Visceral Adipose Tissue Cross-Sectional Area
Computed tomography (CT) cross-sectional area at L4
Time frame: Baseline to Week 24
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