In recent developments, semaglutide, a popular weight-loss drug marketed as Wegovy or Ozempic, has shown promising results in reducing major adverse cardiovascular events (MACEs) and improving heart health for individuals with overweight or obesity and cardiovascular disease. The findings come from the SELECT trial, which included researchers from UT Southwestern Medical Center.
According to the study published in Diabetes Care and The New England Journal of Medicine, semaglutide significantly reduced MACEs by 20% compared to placebo for non-diabetics with preexisting cardiovascular disease. This reduction was observed regardless of blood sugar levels.
The SELECT trial also revealed that people taking semaglutide sustained weight loss for up to four years, dropping an average of 10% of their body weight during that period. Moreover, Wegovy users showed improvements in heart health irrespective of the amount of weight lost.
At two years, 12% of people on semaglutide reached normal weight status and more than 55% no longer qualified as having obesity BMI class. By 208 weeks, participants had reduced waist circumference by an average of about three inches and kept the weight off.
Weight loss was significant regardless of a person's sex, race, body size, location, age, and preexisting health conditions. Semaglutide users also had fewer serious adverse events than those taking a placebo but more people left the study due to gastrointestinal symptoms such as nausea and diarrhea.
In 2023, results from the SELECT trial showed that participants had a 20% lower risk of major adverse cardiovascular events such as heart attack and stroke. A separate analysis presented at the European Congress on Obesity in May showed that people had lower odds of developing heart issues regardless of the amount of weight they lost, suggesting alternative mechanisms for improved cardiovascular outcomes beyond reduction in adiposity.
Semaglutide's ability to reduce cardiovascular events held up even for those who had normal A1c levels at baseline. The reduction in MACEs was similar across all subgroups of A1c change and independent of baseline A1c.
These findings underscore the importance of addressing both weight loss and heart health in individuals with overweight or obesity and cardiovascular disease. Semaglutide's potential to improve both aspects makes it a valuable tool for healthcare professionals.