How does FDA recommend using Bayesian Statistics to inform Regulatory Decisionmaking around clinical trials?

FDA’s January 2026 draft guidance on Bayesian methodology in drug and biologics trials signals a clear willingness to see Bayesian methods used for regulatory decisionmaking around clinical trials. The guidance lays out how sponsors (i.e., pharmaceutical manufacturers) should pre-specify priors, success criteria, and simulations so that Bayesian designs remain interpretable, control error rates when needed,…

Change to UK Rare Disease Approval Process

The Times reports that the UK’s Medicines and Healthcare products Regulatory Agency (MHRA) is revising it’s approach to how it approves new medicines that treat rare diseases. How? Principally by allowing for single arm trials with real-world ‘digital twin’ controls as well as expediting the approval process. The new plan, which is being launched on…

Do Gun-Purchase Waiting Periods Save Lives?

That is the title of a paper by Arnold and Priestley (2025). They examine whether gun purchase wait periods impact suicide rates using both variation in gun laws by state over time as well as variation in a county’s distance to the nearest state without a waiting period. First, some background on US gun purchase…