Plan a study & assess data
Take a research question through study design and data-source assessment. Keep your target trial, design choices, and feasibility reasoning together in one workspace.
Work locally by default. The optional AI assistant previews the information it will send before anything leaves the page.
Which design and data source give us a credible, feasible study that will hold up to review?
Is the design fit for the question, with confounding identified and addressed?
Does this evidence answer our decision question, in data fit for our population?
What target trial do we emulate, and how do we document design and validity end to end?
At a glance
Keep in mind An independent implementation of the published SPIFD2 framework, not authored or endorsed by its authors. A completed workspace still requires methodological review.
In Brief
SPIFD2, the Structured Process to Identify Fit-for-Purpose Study Design and Data, is a framework for planning real-world evidence studies. This workspace makes it interactive. Manual work stays in your browser; the optional AI assistant previews information before sending it.
The framework, made interactive
The static SPIFD2 templates become a guided, left-to-right canvas. Each design element is carried across the steps, so the reasoning from question to data choice stays visible and traceable in one place.
The workflow, end to end
Carry a research question through a hypothetical target trial, explicit confounder control, a best-case emulation under routine care, and a scored, fit-for-purpose data-source assessment, ending at a STaRT-RWE ready specification.
Local by design
A self-contained browser workspace. No install or account is needed for manual use. You can save, reopen, and print a report. If you use the optional AI assistant, review the information it will send before continuing.
AI that coaches, if you ask
An optional assistant that leads with guiding questions rather than generated answers, so you sharpen your own words instead of pasting in a machine's. It is ready to use with nothing to set up, and shows exactly what it will send before anything leaves the page.
Independent, built on published work
An independent implementation, not authored or endorsed by the framework authors. Primary reference: Gatto et al. (2023), CPT 113(6):1235–1239.
Get started
Open the workspace in your browser. You can work manually; the AI assistant is optional.