The Role of Type 2 Diabetes on Skeletal Muscle Atrophy and Recovery Following Bed Rest in Older Adults

Recruiting now · Not applicable

Conditions studied: Type 2 Diabetes, Muscle Atrophy, Aging, Sedentary Behavior, Pre-diabetes

In brief

The goal of this study is to determine the impact of pre-diabetes and type 2 diabetes on muscle atrophy during a period of bed rest and recovery of muscle mass, strength, and physical function following bed rest.

Key facts

Study ID

NCT03761446

Run by

AdventHealth Translational Research Institute

People needed

50

Starts

2019-03-18

Expected to finish

2025-12-01

Last updated by the study team

2025-03-13

Who can join

Age: 60 and older, up to 80. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Participant must be male or female between the ages of 60 and 80 years of age.
• Participant has pre-diabetes or type 2 diabetes and is only taking DPP-4 inhibitors, Sulfonylureas and/or Metformin therapy (but not Insulin, injectable incretin mimeticsSGL2 inhibitors, and Thiazolidinedione's), and has an A1C < 8.0.
• Pre-Diabetics are defined as having an HgbA1c of greater than or equal to 5.7% and less 6.5%, or a fasting glucose of greater than or equal to 100 mg/dl and less than 126 mg/dl or has a glucose of greater than or equal to 140 mg/dl and less than 200mg/dl at the 2 hour blood draw during OGTT
• The non-diabetic control group is defined as having an HgbA1c of less than 5.7%, a fasting glucose of less than 100 mg/dl and a glucose level less than 140 mg/dl at the 2hr blood draw during the OGTT.
• Participant must have renal function with an estimated glomerular filtration rate (eGFR) > 45 ml/min/1.73m2 determined at screening.
• Participant's triglyceride level is < 350 mg/dl and LDL cholesterol is ≤ 150 mg/dl at screening.
• Participants must be non-smokers. Non-smokers as defined by not smoking any tobacco or using nicotine-containing products and not using vape pens or vaporizers within 3 months prior to screening.
• Participant states willingness to follow protocol as described, including consumption of study product per protocol, the prescribed activity level and completing any forms needed throughout the study.
• Participant has voluntarily signed and dated an informed consent form, approved by an Institutional Review Board/Independent Ethics Committee, and provided Health Insurance Portability and Accountability Act authorization (HIPAA) or other privacy authorization prior to any participation in study.

You may not qualify if…

• Participant has type 1 Diabetes.
• BMI > 40.0 kg/m2
• Participant is actively pursuing weight loss and/or lifestyle changes.
• Participant has a history of pressure ulcers.
• Participant has a stated history of Deep Vein Thrombosis (DVT), pulmonary embolism, or a known hypercoagulable condition, or other clotting or bleeding disorders.
• History of gastrointestinal or intracranial hemorrhage.
• History of stroke or cerebrovascular accident.
• Recent history of major trauma (within 3 months).
• Thrombocytopenia (of any cause) or hyperkalemia (K > 5.0) on screening laboratory assay. May repeat lab value per PI discretion.
• Untreated or poorly controlled hypertension (SBP > 150, DBP > 95), or hypotension (SBP <100 DBP <60)
• Participant has a TSH greater than or equal to 10mIU/L.
• Participant has current infection (requiring prescription antimicrobial or antiviral medication, or hospitalization), or corticosteroid treatment (with the exception of inhaled or topical steroids) in the last 3 months prior to screening visit.
• Participant is currently taking anti-inflammatory medication or has anti-inflammatory medication in the 1 weeks prior to screening (including over the counter formulations; e.g. Aleve, Motrin, ibuprofen, naproxen).
• Participant has had surgery requiring > 2 days of hospitalization in the last 1 month prior to screening visit.
• Participant has an active malignancy or autoimmune disease.
• Participant has current significantly impaired liver function in the opinion of the study PI (mild asymptomatic fatty liver is acceptable), or hepatic enzyme tests are ≥ 2.5 times normal limit.
• Participant has a chronic, contagious, infectious disease, such as active tuberculosis, Hepatitis B or C, or HIV.
• Participant is an amputee and/or has presence of partial or full artificial limb.
• Participant has had a significant cardiovascular event (e.g. myocardial infarction, stroke) ≤ 6 months prior to screening visit; or stated history of congestive heart failure; or participant has evidence of cardiovascular disease assessed during the ECG at screening. In the event of a positive stress test, participants are referred to their primary care physician. If the electrocardiogram (ECG) is determined to be a false positive, participant may be allowed to participate in study after confirmatory records obtained.
• Participant has a history of, or currently has uncontrolled severe diarrhea, nausea or vomiting.
• Participant has an obstruction of the gastrointestinal tract, inflammatory bowel disease, short bowel syndrome or other forms of gastrointestinal disease such as stage III or above gastroesophageal reflux disease, gastroparesis, peptic ulcer disease, celiac disease, intestinal dysmotility, diverticulitis, ischemic colitis and bariatric surgery.
• Participant cannot abstain from alcohol for the pre bed rest and bed rest portion of the study. For the recovery portion of the study the participant must agree to consume no more than 1 glass of wine (4-5 oz) or bottle of beer (12 oz) /day.
• Participant cannot refrain from taking medications/dietary supplements/herbals or substances that could modulate glucose metabolism (other than oral hypoglycemic medications), or are considered anabolic, or reduce weight (fat mass), or that may interact with low-molecular weight heparin or induce hypo- or hyper-coagulable state, in the opinion of the PI or medical provider, starting one week prior to enrollment and over the entire course of the study. These include progestational agents (except prescribed birth control), steroids, growth hormone, dronabinol, marijuana, calcium-beta-hydroxy-betamethylbutyrate (CaHMB), free amino acid supplements and dietary supplements to aid weight loss.
• Participant has a mini-Mental State Examination score < 21.
• Subjects who fulfill any of the contraindications for MRI; examples include metal implants, devices, paramagnetic objects contained within the body and excessive or metal-containing tattoos.

Where it is running

• Translational Research Institute for Metabolism and Diabetes — Orlando, Florida, United States (enrolling)

Full record on ClinicalTrials.gov

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