Weight regain now has a timetable — and a Nature mouse study tests the limits of semaglutide enthusiasm
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Study wrapper · #1138

Initiating semaglutide therapy reduces tobacco cigarette smoking intensity among people with HIV.

Ruderman SA, Crane HM, Haidar L, et al. AIDS (London, England). 2026.
Weak / noneCohortMentions: Semaglutide

Editor's note

This slots into the growing file on GLP-1 drugs and addictive behaviors, alongside earlier signals on alcohol and nicotine. The effect here is real but modest, and the design — a before-and-after comparison in 123 people with no control group — cannot separate the drug's effect from quitting attempts that would have happened anyway. An intriguing data point for the antiaddictive hypothesis; randomized trials now underway will carry more weight.

Plain-language abstract

Among 123 people with HIV who smoked when they started semaglutide, average cigarette use fell by about 2.5 cigarettes per day — a 24% drop — and about one in five reported no smoking by the end of follow-up.