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ClinicalTracker.org + Claude: see what changed in a trial's record and write it up clearly

ClinicalTracker.org keeps a history of the changes it observes in ClinicalTrials.gov records, with links to the official source. Claude can read that history and turn it into a short, plain-language summary of what changed and when. Information only, not medical advice.

AgentStructure.AI5 min read

Works with

  • Muse.ai
  • Instinct
  • Grok
  • Claude
  • ChatGPT
  • Any MCP-capable assistant
Connect ClinicalTracker.org to Claude as a custom connector, ask what changed in a trial's record, and have Claude write it up with links to the official record.
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Example alert. Names and numbers are illustrative.

Key takeaways

The short version.

  • ClinicalTracker.org records the changes it observes in ClinicalTrials.gov records and links every change to the official record.
  • History starts when ClinicalTracker.org first saw a study. Earlier versions are on the registry's own history tab, so a comparison reaches back only as far as the tracker has been watching.
  • Claude can add ClinicalTracker.org as a custom connector using its remote MCP address, then summarize the recorded changes in plain words.
  • Nothing here is a listing or built-in integration with Claude. You add the address yourself.
  • This is research information only. It is not medical advice, and it does not judge eligibility or predict whether a trial will succeed.

Who it is for

Who is this pairing for?

  • It is for people who want to know what changed in a trial's registry record without reading the record line by line: researchers,…

  • ClinicalTracker.org watches ClinicalTrials.gov and openFDA, keeps a history of the changes it observes, such as a new status, a revised…

  • One records what changed.

It is for people who want to know what changed in a trial's registry record without reading the record line by line: researchers, journalists, patient advocates, caregivers, clinicians and research staff.

ClinicalTracker.org watches ClinicalTrials.gov and openFDA, keeps a history of the changes it observes, such as a new status, a revised date, a new site or posted results, and links each one to the official record. Claude is Anthropic's AI assistant, and it is good at turning structured details into clear, short writing.

One records what changed. The other helps you explain it. Neither judges whether a trial is right for anyone, and the people running the trial and your care team are the ones to ask about that.

Use cases

5 ways people use ClinicalTracker.org + Claude.

  1. What changed

    1. Ask what changed in a trial since last month

    Give Claude a trial number and ask what changed in its record. ClinicalTracker.org returns the changes it has recorded, with the previous and new values, the date each was detected and a link to the official record. Claude can then list them in order in plain words.

    There is one limit to keep in mind. History starts when ClinicalTracker.org first saw the study. If the tracker has been watching since before last month, the comparison covers it. If not, the registry's own history tab holds the earlier versions, and ClinicalTracker.org says so.

  2. Plain words

    2. Turn a changed record into a plain summary

    Registry changes are written for specialists: a completion date moved, a site was added, an enrollment target changed. Ask Claude to explain each recorded change in a sentence or two, using only what the change details say.

    Tell Claude to leave out any guess about what a change means for a person. A moved date is a moved date; the summary should say what moved, from what to what, and where to read the record.

  3. Shareable update

    3. Write a short update for a team or a group

    Journalists, advocates and research staff often need to tell others what happened. Ask Claude for a five-line update on the trials you follow: what changed, when it was detected and the official link for each.

    Because every change comes with a link, readers can open the registry record and check any line before it is shared.

  4. Questions to ask

    4. Prepare questions for the study team

    After a change, you may want to ask the people who run the study. Ask Claude to draft questions based on the recorded change, for example whether a revised date affects the schedule or whether a new site is open to new participants.

    A registry status of recruiting is not a promise of an open place in a study, so the questions go to the study site listed in the record and to your care team. Claude drafts the questions; it does not answer them.

  5. Watchlist

    5. Follow a few trials and hear about changes

    Ask Claude to follow a condition, a drug, a sponsor or specific trial numbers. ClinicalTracker.org records the current matches as a quiet baseline and tells you about later developments, such as a status change, a new site or posted results.

    You can also get the same alerts by email without any assistant, and each email links to a page where you change what you hear about or unsubscribe.

On your phone

What the alerts look like.

Illustrative

Figure 1

An example exchange. The trial, dates and sites are made up.

Example alerts. Every name, number and event shown is illustrative.

How to

How do I connect ClinicalTracker.org to Claude?

  1. Step 1

    Open [clinicaltracker.org](https://clinicaltracker.org) and copy the connector link, https://clinicaltracker.org/mcp. A search-only link that needs no sign-in is also on the site.

  2. Step 2

    In Claude, go to Customize, then Connectors, and choose to add a custom connector. Enter a name and that address, then review the authentication settings Claude detects.

  3. Step 3

    Sign in to ClinicalTracker.org when it asks. You can create a private account without a name or health information, or link an existing key.

  4. Step 4

    On a Team or Enterprise plan an owner adds the connector first, then each member connects. In a chat, ask what changed in a trial and review the tool requests before you approve them.

Custom connectors are described in Anthropic's help center. Plans and menus can change, so follow that page. ClinicalTracker.org is not listed in Claude's directory or built into Claude.

Open ClinicalTracker.org + ClaudeConnect your AI

FAQ

Frequently asked questions.

Is ClinicalTracker.org an official Claude integration?

No. There is no partnership or built-in integration. Claude supports custom connectors through remote MCP, and you add the app's address yourself. The app is an AgentStructure.AI app.

Can Claude compare a trial's record with last month's version?

It can summarize the changes ClinicalTracker.org has recorded, with previous and new values. History starts when the tracker first saw the study, and earlier versions are on the registry's own history tab.

Is this medical advice?

No. ClinicalTracker.org reports what the official registries say and what changed. It does not judge eligibility, rank treatments or predict whether a trial will succeed. Talk to your care team about any trial.

Where does the data come from?

ClinicalTrials.gov and openFDA, both public U.S. government sources. Every change links to the official record.

Can I trust Claude's summary?

Check it against the linked record before you rely on it. Ask Claude to use only what the recorded change says, and correct anything it adds.

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