The Stopping Question
Withdrawal trials, maintenance data, and what happens to people who cannot keep paying.
STEP 1 extension. SURMOUNT-4. The 2023 withdrawal literature. Then the part the trials do not cover: an exclusion from a formulary, an expired discount card, a compounding source that closes, and a person at month fourteen deciding what to do next.
Instalments
8 of 8 plannedPart 1 — Clinical Trials
A design note on withdrawal trials, and why the run-in matters
A withdrawal trial answers a narrower question than it appears to. This piece states which question.
Jonas Arvelo
2 Jan 2024
1,534 words
Part 2 — The Ledger
The shortage years, and what they taught about interruption
Real-world persistence figures, with their definitions stated, because the definitions are doing most of the work.
Imogen Thackeray
3 May 2024
2,419 words
Part 3 — The Ledger
Maintenance dosing: what is licensed, what is practised, and what is evidenced
A survey of the maintenance evidence, which is shorter than the survey of the withdrawal evidence.
Teodor Lindqvist
21 Aug 2024
2,524 words
Part 4 — The Ledger
The lead-in, the randomisation, and the year that followed
Three randomised withdrawal designs have tested what happens when treatment stops. Their results are consistent and they are consistently misreported.
Teodor Lindqvist
29 Nov 2024
1,659 words
Part 5 — Patient Notes
Two sessions a week, and the evidence behind the prescription
The older-adult diet-and-exercise trials are the closest analogue to rapid pharmacological weight loss, and they are twenty years old.
Delphine Ruzek
26 Mar 2025
2,637 words
Part 6 — The Ledger
STEP 2 was built to answer the stopping question, and it did
A withdrawal trial answers a narrower question than it appears to. This piece states which question.
Teodor Lindqvist
15 Jul 2025
1,899 words
Part 7 — Clinical Trials
How much of cagrilintide weight loss can any instrument actually attribute?
The compartment called lean mass contains water, glycogen, viscera and skin. Only some of it is the tissue anybody is worried about.
Anneke van der Molen
5 Nov 2025
1,895 words
Part 8 — Patient Notes
Load, not cardio: the distinction the general advice keeps losing
The older-adult diet-and-exercise trials are the closest analogue to rapid pharmacological weight loss, and they are twenty years old.
Héctor Valmorida
9 Mar 2026
1,638 words