Research

Hormonal

Lorcaserin, a selective serotonin 2C receptor agonist, produces modest but clinically significant weight loss (mean 3.2-5.0 kg) compared to placebo, though tolerance may develop over two years of treatment.

Lorcaserin offers a modest weight loss benefit (approx. 3-5 kg) over lifestyle changes alone for obese patients. It works by targeting serotonin receptors to reduce appetite. However, tolerance can develop, leading to weight regain in the second year. It is only prescribed if you lose at least 5% of your body weight in the first 12 weeks; otherwise, it is stopped.

GoodQualifiesHIGH confidence
On its own, lorcaserin produces only modest weight loss... with a mean weight loss of 3.2 kg at 1 year... In the BLOOM-DM trial... found a mean weight loss of 5.0 ± 0.35% on lorcaserin 10 mg daily... patients in the BLOOM trial experienced weight regain during the second year of active treatment... suggesting that tolerance to lorcaserin may have developed.
Sean Manning et al. · Therapeutic Advances in Chronic Disease · 2014

Why this rating

Based on multiple randomized, double-blind, placebo-controlled phase III trials (BLOOM, BLOSSOM, BLOOM-DM).

Source

Pharmacotherapy for obesity: novel agents and paradigms

Sean Manning et al. · Therapeutic Advances in Chronic Disease · 2014

DOI 10.1177/2040622314522848

narrative_reviewCited 92×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →