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Promotion of Weight Management (POWER-VET)

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VA Office of Research and Development

Status

Enrolling

Conditions

Overweight

Treatments

Other: Weight Maintenance
Other: Weight Maintenance + Intermittent Fasting

Study type

Interventional

Funder types

Other U.S. Federal agency

Identifiers

NCT04131647
ENDA-013-19S

Details and patient eligibility

About

The identification of intermittent fasting as an alternative method to traditional weight maintenance protocols could have a significant impact on preventing body weight regain common after successful weight loss, and potentially lead to a reduction in pharmaceutical and clinical costs related to the care of overweight and obese adults.

Full description

The research will examine the impact of intermittent fasting to promote long term body weight maintenance following successful weight loss in overweight and obese Veterans. This research is especially relevant to the majority of Veterans who struggle with obesity and maintaining weight loss. Obesity increases the risk for storing excess calories in ectopic depots, including skeletal muscle. Intramuscular fat is related to altered substrate utilization (metabolic inflexibility) and defects in insulin sensitivity, ultimately leading to type 2 diabetes mellitus and cardiovascular disease. The objective of this proposal is to test in a randomized clinical trial the effectiveness of an intensive weight management program with and without intermittent fasting (IF) to combat weight regain and the obesity crisis in our Veterans. Further, this application proposes to examine the role of several enzymes involved in skeletal muscle fatty acid oxidation as a mechanism for efficacious long term weight management.

Enrollment

200 estimated patients

Sex

All

Ages

50 to 75 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Veteran
  • 50-75 years of age
  • BMI: 25-40 kg/m2
  • Postmenopausal status for women

Exclusion criteria

  • Uncontrolled diabetes (HbA1c >10% or the current use of insulin)
  • Neurologic, musculoskeletal, or other condition that limits subject's ability to complete study physical assessments
  • Active inflammatory, autoimmune, infectious, hepatic, gastrointestinal, malignant, and psychiatric disease
  • Weight change within the past month of >5 kg
  • Self-reported alcohol or drug abuse
  • Anti-coagulant medication for muscle biopsies only Impaired renal function (creatinine > 1.5 mg/dl) History or evidence of serious liver disease (LFTs > 2.5 x WNL)

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Single Blind

200 participants in 2 patient groups

Weight Maintenance
Active Comparator group
Description:
Heart Healthy nutrition, walking, resistance band exercise
Treatment:
Other: Weight Maintenance
Weight Maintenance + Intermittent Fasting
Experimental group
Description:
Heart Healthy nutrition, walking, resistance band exercise and intermittent fasting (2 small meals per day) one day per week for 24 weeks.
Treatment:
Other: Weight Maintenance + Intermittent Fasting

Trial contacts and locations

2

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Central trial contact

Kristina Marcus, MS; Alice S Ryan, PhD

Data sourced from clinicaltrials.gov

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