Vibegron - A Novel Treatment for Multisystem Functional Decline in Aging and Obesity
试验速览
- 阶段
- 3 期
- 状态
- 尚未招募
- 入组人数
- 40
- 试验地点
- 1
- 主要终点
- Resting Metabolic Rate
研究概览
简要总结
This 12-week randomized, double-blind, placebo-controlled trial will test the hypothesis that Vibegron (brand name GEMTESA) can improve energy metabolism, cardiometabolic risk factors, and physical and cognitive function in middle-aged and older adults with obesity.
详细描述
Aging is characterized by the gradual loss of physiological integrity, and this process may be accelerated in the presence of obesity, increasing susceptibility to disease, frailty, and death. Although the shared molecular pathways involved have not been fully elucidated, adipose tissue dysfunction is likely a key contributor to multisystem functional decline in aging and obesity. Despite growing evidence that β3 adrenergic receptor (β3AR) mediated activation of brown adipose tissue (BAT) may alter pathophysiological pathways implicated in various aging-related diseases including metabolic, cardiovascular, and neurodegenerative diseases, BAT has been largely ignored in aging research. This study will randomize 40 middle-aged and older adults (45-75 yrs) with obesity to the β3AR agonist Vibegron (75 mg/day) or placebo for 12 weeks to compare their effects on various bioenergetic, cardiometabolic, physical function, and cognitive outcomes. Potential study candidates will be screened by telephone to determine basic interest and eligibility. Individuals who pass this initial screening will then undergo an in-person screening at Atrium Health Wake Forest Baptist. Enrolled participants will be randomized 1:1 to Vibegron or placebo and will be instructed to take the study drug by mouth once daily for 12 weeks. Study outcomes will be assessed at the baseline and follow-up visits and at one safety/compliance visit. Participants will self-report demographic, behavioral, and medical information using questionnaires. They will also complete functional tests to assess muscle strength/power and mobility, DXA and CT scans to assess body composition and body fat distribution, and remote monitoring to assess core body temperature. In addition, participants will have their blood drawn for the assessment of glucose/insulin and lipid indices, for screening and safety purposes, and for storage of plasma/serum samples. Blood samples will also be used to assess mitochondrial bioenergetics in peripheral blood mononuclear cells and thermogenic and adipokine protein expression in adipose tissue-derived small extracellular vesicles. Safety will be assessed based on treatment-related adverse events and measurement of blood chemistries and vitals. To assess medication adherence, participants will be instructed to keep a daily dosing diary and to bring the log, along with empty pill bottles, to the safety/compliance visit for review by the study team.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Triple (Participant, Investigator, Outcomes Assessor)
盲法说明
Pharmacy will provide Vibegron tablets and create matching placebo. Participants will be randomized 1:1 to either arm
入排标准
- 年龄范围
- 45 Years 至 75 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Obese (BMI ≥30 kg/m2 or BMI ≥27 kg/m2 with a waist circumference >102 cm for men and >88 cm for women)
排除标准
- •Body weight ≥450 pounds
- •Major depression
- •Evidence of cognitive impairment
- •Uncontrolled diabetes (hemoglobin A1c >7%)
- •Weight gain or loss of ≥5% over the past 6 months
- •Prior weight loss procedure (e.g., gastric bypass, sleeve gastrectomy, gastric banding)
- •Regular use of the following: weight loss medications (e.g., Orlistat, Belviq, Contrave, Saxenda, Phentermine, Qsymia); medications or dietary supplements known to alter energy metabolism; adrenergic agonists or beta blockers
- •Symptoms of urinary retention, incontinence, urgency, and frequency or current use of an antimuscarinic medication to treat overactive bladder
- •Benign prostate hyperplasia
- •Significant medical illness or organ failure, such as uncontrolled hypertension, advanced kidney disease, liver disease, thyroid disease, or active neoplastic disease
- •Diagnosis of a neurodegenerative illness (e.g., mild cognitive impairment, dementia, Parkinson's disease, Multiple Sclerosis)
- •History of a clinically significant stroke
- •Cardiac arrhythmia or an abnormal Electrocardiogram
- •Drug/substance abuse or excessive alcohol use within the past 6 months
- •Contraindication to Vibegron or any of its components
- •Current participation in another intervention or research study that prohibits co-enrollment
研究组 & 干预措施
Placebo
Participants in this arm will take placebo daily for 12 weeks.
干预措施: Placebo (Drug)
Vibegron
Participants in this arm will take 75mg/day Vibegron for 12 weeks.
干预措施: Vibegron (Drug)
结局指标
主要结局
Resting Metabolic Rate
时间窗: Baseline
Resting metabolic rate (RMR) will be measured by indirect calorimetry using a computerized metabolic cart that provides valid and reliable measurement of oxygen consumption and carbon dioxide production - RMR can be estimated using formulas such as the Mifflin-St Jeor equation: Males: RMR = 10 \* weight (kg) + 6.25 \* height (cm) - 5 \* age (years) + 5 Females: RMR = 10 \* weight (kg) + 6.25 \* height (cm) - 5 \* age (years) - 161
Resting Metabolic Rate
时间窗: Week 12
Resting metabolic rate (RMR) will be measured by indirect calorimetry using a computerized metabolic cart that provides valid and reliable measurement of oxygen consumption and carbon dioxide production - RMR can be estimated using formulas such as the Mifflin-St Jeor equation: Males: RMR = 10 \* weight (kg) + 6.25 \* height (cm) - 5 \* age (years) + 5 Females: RMR = 10 \* weight (kg) + 6.25 \* height (cm) - 5 \* age (years) - 161
次要结局
- Glucose Tolerance Level(Baseline and Week 12)
- Expanded Short Physical Performance Battery (eSPPB)(Baseline and Week 12)