SemaglutidePriceGuide
Semaglutide Price Guide is an educational pricing and comparison resource operated by Premium Health Solutions. Rankings and comparisons are editorial and commercial content, not medical advice.

Clinical trials

STEP 4: weight maintenance and stopping semaglutide

One of the most important questions in obesity medicine: is the weight loss durable if you stop?

Reviewed 2026-06-04 Physician-reviewed How we research

Quick Answer

STEP 4 (JAMA, 2021) gave all participants semaglutide for a 20-week run-in, then randomized them to continue the drug or switch to placebo. Those who continued lost further weight (about 7.9% more); those switched to placebo regained substantially (about 6.9%). The trial shows obesity is chronic and weight loss is best maintained with ongoing treatment. Compounded semaglutide is not FDA-approved.

Key Facts

  • 20-week semaglutide run-in, then continue vs switch to placebo
  • Continuers: lost ~7.9% more over the following period
  • Switchers (placebo): regained ~6.9%
  • Supports treating obesity as a chronic condition
  • Studied the branded product; compounded semaglutide is not FDA-approved

Withdrawal design

After a 20-week run-in during which everyone took semaglutide and lost weight, STEP 4 randomized participants to continue semaglutide or switch to placebo for the rest of the 68-week study, all with lifestyle support.

Continue vs stop

Those who continued semaglutide kept losing (about 7.9% more), while those switched to placebo regained a substantial share (about 6.9%) — a large, consistent divergence that mirrors what is seen across the GLP-1 drug class when treatment stops.

STEP 4: weight change magnitude after run-in

Continued loss (continue)7.9%Regain (switch to placebo)6.9%
Approx. magnitude of further weight change after randomization (Rubino et al., JAMA 2021).

Obesity as a chronic disease

STEP 4 reframes expectations: semaglutide manages weight while it is taken, much as blood-pressure medication manages blood pressure while taken. Stopping tends to be followed by regain because the underlying biology that defends a higher weight is still present (see weight regain).

Cost and planning

If treatment is often long-term, the recurring monthly cost matters more than any introductory price — which is why we emphasize maintenance-dose pricing and annual cost. Discuss duration, goals and any stopping plan with your clinician. Compounded semaglutide is not FDA-approved.

Frequently asked questions

What happens if you stop semaglutide?

In STEP 4, people who switched to placebo regained a substantial share of their lost weight, while those who continued kept losing — evidence that ongoing treatment maintains results.

Is semaglutide a long-term treatment?

The evidence suggests obesity is chronic and weight loss is best maintained with ongoing treatment, much like other chronic-disease medications.

References

  1. Rubino D, et al. Effect of continued vs withdrawn semaglutide on weight maintenance (STEP 4). JAMA. 2021;325:1414-1425.
  2. Wilding JPH, et al. Weight regain after withdrawal of once-weekly semaglutide (STEP 1 extension). Diabetes Obes Metab. 2022;24:1553-1564.
  3. U.S. Food and Drug Administration. Wegovy, Ozempic and Rybelsus (semaglutide) prescribing information. Novo Nordisk.

Citations are for educational reference; this article summarizes published research in plain language and is not medical advice.

Bottom Line

STEP 4 showed that continuing semaglutide maintains weight loss while stopping leads to substantial regain — a key reason obesity is treated as a long-term condition.

Related from the Journal

Weight regain

The biology of regain.

STEP 1

The initial weight loss.

Price by dose

Plan for ongoing cost.

Compounded semaglutide is not FDA-approved as a finished drug product. Compounded medications may be prescribed only when clinically appropriate and must be evaluated by a licensed prescriber. Branded medications such as Wegovy and Ozempic are FDA-approved products; compounded semaglutide is different and should not be described as FDA-approved, “generic Wegovy,” or “generic Ozempic.”
Compare NexLife plans