Try Asthra free on a sample study.
No call needed. Sign in, open one of the sample libraries, and see how Asthra drafts a section with the sources open beside it. The sample libraries are fully free. Pick where you want to work.
Inside Microsoft Word
One click opens Word with the Asthra AI add-in ready to load. No store page, and nothing to download first. It opens as a task pane beside your document.
- Word for Microsoft 365 on Windows and Mac, and Word on the web.
- Select any text to see the source passage behind it.
- Your IT team may need to approve the add-in first.
No desktop Word on this device? Install from Microsoft Marketplace or add it to Word on the web.
In your browser
Nothing to install. Sign in with Microsoft, Google or email and you are in the app.
- Sources live in a library, so the next document can reuse them.
- Work through flags from an Issues list, with every fix shown as a diff.
- Export to Word when the draft is ready.
Opens in a new tab. Works in any modern browser, on Windows and Mac.
Clinical study reports and trial protocols are open for self-serve drafting today. Need another document type now? Book a demo and we will set it up with you.
We never train on your documents
Drafting runs through Anthropic and OpenAI under zero-data-retention agreements. Nothing is stored after the response and nothing is used for training.
Delete whenever you want
Sources stay in your library until you delete them. Delete a document and its drafts go with it.
A page you can send to your sponsor
The data-handling statement is written to be forwarded. The full detail is on Data Security and the Trust center.
The sample libraries are free. Drafting from your own files is paid per document or per section, with no subscription and no seats.