Question · from the living review of COPD Pharmacotherapy →

Is it true that LAMA reduce exacerbations versus placebo in moderate-to-severe COPD?

Established updated weekly · as of

Priors rates this Established — 90 out of 100, updated weekly. Yes — this looks well established. On the claim that LAMA reduce exacerbations versus placebo in moderate-to-severe COPD, its four-agent AI review panel weighs 8 primary peer-reviewed studies.

RefutedDoubtfulUncertainLikelyEstablished
where this sits on Priors’ scale of how settled the evidence is

How we got this answer. Priors runs each claim through a panel of four AI agents, each acting as a specialist expert reviewer. They read the published, peer-reviewed studies behind the question, judge how strong, consistent and reliable the evidence is, and turn that judgment into a single rating from 0 to 100 — refreshed every week as new studies appear, so it reflects where the evidence stands today, not a one-off verdict.

The traceable studies behind this rating — and the panel’s single strongest counter-argument to it — are in Priors’ full COPD Pharmacotherapy review.

Related Respiratory & Allergy questions

Is it true that LAMA-LABA dual bronchodilation improves lung function over monotherapy? → Is it true that triple therapy reduces exacerbations versus dual therapy in COPD? → Is it true that inhaled corticosteroids increase pneumonia risk in COPD? → Is it true that systemic corticosteroids shorten recovery in acute COPD exacerbations? →
Reflects the peer-reviewed evidence as of 17 July 2026 and updates as new studies land. AI can make mistakes. Not medical advice.