Retatrutide is a medication being studied for its effectiveness and safety in people who are either obese or overweight. The trial aims to see how well this medication works in helping with weight management. Additionally, the study includes participants who have knee osteoarthritis to understand if the medication can also benefit those with joint issues related to obesity or overweight.

Osteoarthritis, Knee – This is a degenerative joint disease that affects the knee, leading to the breakdown of cartilage. As the cartilage wears away, bones may rub against each other, causing pain and stiffness. Over time, the joint may lose its normal shape, and bone spurs may develop. The condition can result in decreased mobility and difficulty performing daily activities. Symptoms often worsen with activity and improve with rest. Swelling and a grating sensation in the knee may also occur.

Overweight – This condition is characterized by having more body weight than is considered healthy for a given height. It is often measured using the Body Mass Index (BMI), where a BMI between 25 and 29.9 is classified as overweight. Being overweight can lead to increased pressure on joints and may contribute to the development of other health issues. It is often associated with an imbalance between calories consumed and calories expended. The condition can affect energy levels and physical activity. It is a common condition that can be managed with lifestyle changes.

Obesity – This is a condition where excess body fat has accumulated to the extent that it may have a negative effect on health. It is typically defined by a Body Mass Index (BMI) of 30 or higher. Obesity can lead to increased risk of various health problems, including heart disease, diabetes, and joint issues. It often results from a combination of genetic, behavioral, and environmental factors. The condition can affect physical mobility and overall quality of life. Managing obesity often involves changes in diet and physical activity.