See both groups in the main weight study
SCALE studied adults without diabetes.
The comparison treatment was a dummy one, known as a placebo.
The study reports weight in kilograms, written as kg.
Liraglutide group
Over 56 weeks in SCALE, people on liraglutide lost an average of 8.4 kg, about 18.5 pounds.
Dummy-shot group
People on the dummy shot lost an average of 2.8 kg, about 6.2 pounds, over the same 56 weeks.
Ask how closely the people in that study resemble your own situation. Also ask what a care review would look for besides a weight change.
Read a comparison with another medicine
STEP 8 compared liraglutide with semaglutide.
Semaglutide is another medicine in the same family as liraglutide.
Liraglutide
In STEP 8, average weight loss on liraglutide was 6.4% after 68 weeks.
Semaglutide
In that study, the semaglutide group lost 15.8% on average after 68 weeks.
The people taking part and the study staff knew which shot each person got.
Ask the health professional whether knowing which shot was used affects how much they trust the results.
The maker of both medicines funded the comparison trial.
Write down what the result actually says
Keep these notes open while you work, or copy them before leaving the page. Nothing here sends your answers to a care service.
Look for a clear answer to those questions before turning a group result into an expectation for your own care.
Open the study records
Open the notes behind this answer
The published study results used here were checked in September 2026.
The links lead to abstracts: short accounts of the published papers.