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GLP-1 Decoder

Rybelsus Plateau: Why Weight Loss Stalls

Results vary a lot by person. In STEP 1, the average loss on semaglutide 2.4 mg weekly was 14.9% over 68 weeks, against 2.4% on placebo.

Average loss, top dose
14.9%
On placebo
2.4%
Trial length
68 weeks
Trial
STEP 1

Rybelsus in brief

How long it stays in your body
100%50%25%0%07 d14 d21 d28 d35 d50%25%12.5%time after the dose

Its half-life runs about 1 week: by 7 d half has gone, and five half-lives (35 d) leave about 3% behind.

Weight loss seen in the main trial
Rybelsus (PIONEER 1)3.7 kgPlacebo1.4 kg

In PIONEER 1, 26 weeks, with type 2 diabetes, 3.7 kg was lost against 1.4 kg on placebo.

What it costs over time
20262027$1,027.51$0List priceSelf-pay

Listed monthly prices in US dollars: the list price and the self-pay offers, each taken from the maker's price page.

Sources: FDA label (DailyMed), healthsystemtracker.org, Novo Nordisk pricing, Novo Nordisk.

Rybelsus plateau: the numbers first

Rybelsus testing focused mainly on blood sugar. Wegovy is that same medicine at a higher dose, and the weight trials shown here are its own.

Average weight lost in each trial, split by dose
TrialDose groupAverage weight lostPlacebo or comparisonWeeksWho was in it
STEP 1Semaglutide 2.4 mg weekly14.9%2.4%68Adults with obesity or overweight, without diabetes
OASIS 4Wegovy pill 25 mg daily13.6%2.4%64Adults with obesity or overweight, without diabetes
STEP 2Semaglutide 2.4 mg weekly9.6%3.4%68Adults who have type 2 diabetes and also obesity or overweight

The figures come from STEP 1 (FDA label (DailyMed)) and STEP 2 (PubMed).

What leads to a stall, and what helps

  1. See which dose step you have reached. In all of the trials above, the lower doses lost less weight.
  2. Total the doses you missed or took late over the past month.
  3. For a few days, keep a record of your food and drink. As portions shrink, liquid calories and grazing pile up.
  4. Have protein at each meal and keep doing strength exercise, so the weight you lose is mostly fat.
  5. Notice sleep and stress, since they affect appetite.
  6. Ask your pharmacist whether any of your other medicines can lead to weight gain.
  7. Talk to your prescriber about a thyroid check or a blood sugar check, and about changing medicines if you have gone months without progress.