Insulin for Obesity

This trial explores how the brain reacts to insulin in people with obesity and insulin resistance. Researchers aim to understand how insulin affects blood flow in the brain. Participants will receive insulin through a nasal spray to assess its impact. Adults with a BMI over 30 and a large waist may find this trial suitable. As an Early Phase 1 trial, this research seeks to understand how the treatment works in people, offering participants the opportunity to be among the first to experience this innovative approach.

Research has shown that human insulin is generally safe when administered in various ways. This trial tests a new method of delivering insulin through the nose. Insulin, widely used and FDA-approved for treating diabetes, has a strong safety record. However, specific safety information about this new delivery method remains limited due to the trial's early stage. Early-stage trials primarily assess a treatment's safety, indicating it has passed initial lab tests but requires further testing in people to confirm safety with this new delivery method.¹²³⁴⁵

Researchers are excited about using human insulin for obesity because it introduces a novel delivery method: an intra-nasal device. Traditional treatments for obesity often include lifestyle changes, medications like orlistat, or even surgical interventions. However, this approach leverages insulin's potential metabolic effects in a new way, potentially offering an easier and less invasive alternative. By delivering insulin directly through the nasal passage, it might enhance brain insulin signaling, which could play a role in regulating appetite and metabolism. This innovative delivery could make insulin a valuable tool in tackling obesity in a more targeted manner.

This trial will evaluate the effects of administering human insulin using an intra-nasal device for obesity. Research has shown that insulin delivered through a nasal spray might aid in managing obesity. Some studies suggest this method can reduce body fat in men and enhance mood in women with obesity. It also appears to increase the brain's responsiveness to insulin, potentially helping to control overeating. Other research has found that it can lower blood sugar levels and improve insulin utilization in the body. Importantly, various trials have proven intranasal insulin safe, with no major safety issues reported. Participants in this trial will receive insulin through one of two experimental arms: the Insulin (Doppler) arm or the Insulin (MRI) arm.⁶⁷⁸⁹¹⁰