Obesity

Real‐World Weight‐Loss Outcomes in Weight‐Reduced Patients Treated With Tirzepatide

Obesity (Silver Spring)Published Retrospective cohort study

Authors' conclusion

Tirzepatide produced meaningful weight loss across groups but outcomes varied based on weight-reduction status, T2D status, and prior response to semaglutide.

Study context

Population
Adults treated with tirzepatide between May 2022 and January 2023; 65% female; mean age 52 years; mean BMI 36.15 kg/m²of 941 charts
Participants
293 adults
Exposure
Weight-reduced vs non-weight-reduced patients treated with tirzepatide
  • Weight-reducedn = 133
  • Non-weight-reducedn = 160reference
Outcome
Weight-loss outcomes (% TBW lost)
Follow-up
6 months

Main finding

As reported in the abstract

% TBW lost

P < 0.001

Observational data: associations, not effects.

Further findings

% TBW lost by reason for switching from semaglutide · plateau n = 28; non-responders n = 33

P < 0.001

% total body weight (TBW) lost, stratified by T2D status

Difference remained significant among patients without T2D

% TBW lost in patients switched from semaglutide due to non-response or plateau

Switched from semaglutide (n = 61), TBW lost
5.3%

Original publication

Real‐World Weight‐Loss Outcomes in Weight‐Reduced Patients Treated With Tirzepatide. Obesity (Silver Spring). Published 28 March 2026. doi:10.1002/oby.70179

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