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Liraglutide versus semaglutide for weight reduction-a cost needed to treat analysis
Joseph Azuri1,2, Ariel Hammerman3, Enis Aboalhasan4
1Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Objective:
Higher doses of the glucagon-like peptide-1 agonists liraglutide and, more recently, semaglutide have demonstrated a significant reduction in body weight. However, their comparative value for money for this indication is unclear.
Methods:
The cost needed to treat to achieve a 1% reduction in body weight using semaglutide or liraglutide was calculated. The body weight reductions were extracted from the published STEP 1 trial and the SCALE trial results, respectively. A scenario analysis was performed to mitigate the primary differences between the two studies' populations. Drug costs were based on US GoodRx prices as of October 2022.
Results:
Liraglutide in STEP 1 resulted in a weight loss of 5.4% (95% CI: 5%-5.8%). Semaglutide in SCALE resulted in a weight loss of 12.4% (95% CI: 11.5%-13.4%). The total cost of therapy with liraglutide during the trial was estimated at $17,585 compared with $22,878 with semaglutide. Accordingly, the cost needed to treat per 1% of body weight reduction with liraglutide is estimated at $3256 (95% CI: $3032-$3517) compared with $1845 (95% CI: $1707-$1989) with semaglutide.
Conclusions:
Semaglutide provides significantly better value for money than liraglutide for weight reduction.
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