Which site should I use?
Match your question to the EphemerisX site and page that answers it fastest.
Each EphemerisX site answers a different kind of question. Use the table below to find where to start.
By question#
| If you want to know… | Go to |
|---|---|
| Which Alzheimer's drugs the FDA has approved, and which are still marketed | Alzheimer's record › Every FDA-approved Alzheimer's drug |
| What an anti-amyloid approval (or refusal) rested on | Alzheimer's record › Decision entries |
| Whether the FDA changed its position on a question such as ARIA or the surrogate endpoint | Alzheimer's record › Regulatory questions (threads) |
| How an advisory committee voted | Alzheimer's record › Advisory committee votes, or the decision entry |
| Which trials the FDA reviewed for a drug, and the results it reported | FDA drug record › Drug pages |
| A drug's boxed warning, common adverse reactions or label dosing | FDA drug record › Safety and Dosing on the label |
| Which documents EphemerisX holds for a drug, and whether they have been read | The Ephemeris › The list or a drug page |
| What a company told investors after an FDA Complete Response Letter | The Ephemeris › The SEC Ephemeris |
| What an FDA letter objected to, how the company described it, and what happened next | Deep research › Question webs |
| Whether a concern in one FDA letter carried over to the next | Deep research › a company's question page on what changed between the letters |
| What answers from the Ephemeris will look like, with their reasoning | Deep research › Ask the Ephemeris (concept preview) |
| Whether an Alzheimer's application is under FDA review | Alzheimer's record › Pending applications |
| Whether the file you downloaded from fda.gov is the one that was read | FDA drug record › Verify a document |
By device#
All the sites work on phones, but they are designed differently:
- The Ephemeris is a map and works best with a mouse or trackpad. On a phone, the list opens as a drawer and the map supports pinch and drag.
- The Alzheimer's record shows its interactive command center only on screens at least 1,100 pixels wide. On smaller screens you get the same content as tables and cards.
- The FDA drug record is plain reading pages and works the same everywhere.
- Deep research question pages read anywhere. The question webs and the concept preview's reasoning graphs are best with a mouse or trackpad, where you can hover to trace connections.
See Devices and accessibility for details.