pivotal trial
the clinical trials a drug approval actually rests on — usually short, placebo-controlled, and much briefer than real-world use.
the median pivotal antidepressant trial ran about eight weeks. median real-world use runs years. both are facts; the gap between them is this library's central exhibit.
what it is
FDA approvals rest on specific adequate and well-controlled trials named in the label's Clinical Studies section. For psychiatric drugs these typically run six to twelve weeks against placebo.
what the gap means
Short trials are how approval works everywhere — they are not a scandal. But they mean the label's efficacy evidence says little about year five, and an honest prescribing conversation acknowledges it. Our trial-length audit plots every drug in the library: the longest pivotal trial behind each approval, next to how many Americans take the drug today.
somewhere to put it
free. anonymous. people who’ve been where you are 🤍
get Resolv Social — it’s freewant the deeper story? read prescribed to fail
questions
how long are antidepressant approval trials?
Mostly six to twelve weeks. The longest pivotal trial behind each approval in our library is plotted drug by drug on the audit page.
does a short trial mean the drug is unsafe long-term?
It means long-term questions are answered by weaker post-approval evidence — open-label extensions, registries, adverse-event reporting — not that harm is proven.
more from the glossary
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