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ClinicalTracker.org: a free way to watch clinical trials for changes

ClinicalTracker.org watches ClinicalTrials.gov and openFDA, then tells you when a trial or FDA record you follow changes. Here is what it watches, who it is for, and how to set it up. Information only, not medical advice.

AgentStructure.AI5 min read

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A free tracker that tells you when a clinical trial or FDA record you follow changes, with a link to the official source.
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Example alert. Names and numbers are illustrative.

Key takeaways

The short version.

  • ClinicalTracker.org is free to use and watches ClinicalTrials.gov and openFDA for changes.
  • Pick a condition, a drug, a sponsor or specific NCT numbers, and choose which kinds of changes you want to hear about.
  • Every alert links to the official record, so you can read the source yourself.
  • It is information only: no medical advice, no eligibility checks, no rankings, no predictions.
  • A Recruiting status in the registry does not mean a spot is open, so contact the study site and talk with a doctor.

Who it is for

Who is ClinicalTracker.org for?

  • ClinicalTracker.org is for anyone who needs to keep up with clinical research without checking a registry page every week.

  • A patient or caregiver might follow a condition and want to know when a new trial appears near them.

  • The site reads two public sources: ClinicalTrials.gov, the US registry of studies, and openFDA, the FDA's public drug data.

ClinicalTracker.org is for anyone who needs to keep up with clinical research without checking a registry page every week. The sign-up form asks which of four groups you belong to: patient or caregiver, clinician, researcher, or industry. That choice shapes which alerts are on by default.

A patient or caregiver might follow a condition and want to know when a new trial appears near them. A clinician might follow a drug or a handful of studies that matter to their practice. A researcher or someone in industry might watch a sponsor or a competitor's registered studies.

The site reads two public sources: ClinicalTrials.gov, the US registry of studies, and openFDA, the FDA's public drug data. It does not run trials, enroll anyone or hold your health records. It tells you what changed and where to read more.

Use cases

5 ways people use ClinicalTracker.org.

  1. New matching trials

    1. Follow a condition and hear about new trials

    Enter a condition, add an optional city, state or province and country, and choose New matching trials. When a study that matches your search is newly registered, you get an alert with a link to its record.

    Matching comes from the registry's own search, so the tracker does not guess what your condition means. If the registry returns a study that looks a little off-topic, that is the registry's matching, and you can read the record to see why.

  2. Recruitment changes

    2. Notice when recruitment opens, closes or pauses

    Many people follow one specific study, so you can enter NCT numbers directly. Choose the alert kind for recruitment opening, closing or pausing, and you hear when the registry status moves.

    Keep in mind what a status is. The registry saying Recruiting is not a promise of an open slot. Sites fill up, and the record can lag behind reality. The alert is a prompt to read the record and contact the study site listed in it.

  3. Stopped or suspended

    3. Catch stops, suspensions and withdrawals

    If you are planning around a study, it helps to hear quickly when it is stopped, suspended or withdrawn. That is its own alert kind. You can also ask for finished studies and posted results, so you know when a study you followed reports back.

    The tracker reports that the status changed. It does not say why, and it does not say what that means for any treatment.

  4. Change history

    4. See what changed in a study over time

    For any study the site has tracked, you can view the history of changes it has seen: locations added or removed, eligibility text edited, dates moved, phase or sponsor changed. Each entry shows the earlier and later value.

    History starts on the day the tracker first saw the study. Earlier versions are on the history tab of the registry's own record, and the tracker points you there.

  5. FDA updates

    5. Watch FDA approvals, label changes and recalls

    Choose the FDA alert kind and the tracker also reports approvals, label changes and recalls for the drug you follow, using openFDA. A label update is a record that the label changed. It is not a safety finding, and the alert does not present it as one.

On your phone

What the alerts look like.

Recruitment change

Figure 1

An example of an alert on your phone. The trial and details here are made up for illustration.
Weekly digest

Figure 2

An example weekly digest. Everything in it is made up for illustration.

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

How to

How do I set it up?

  1. Step 1

    Open [clinicaltracker.org](https://clinicaltracker.org) and try the search first. You can search trials and FDA records without signing in.

  2. Step 2

    To get alerts by email, fill in the sign-up form: your role, what to watch (a condition, a drug or treatment, a sponsor or company, or specific trials), an optional location, and the kinds of alerts you want.

  3. Step 3

    Choose how often to hear from it: as soon as it happens, a daily digest or a weekly digest.

  4. Step 4

    Confirm your email address using the link in the first message. Nothing is sent until you do, and every alert has an unsubscribe link.

  5. Step 5

    Prefer an AI assistant? Add the connector link from the site as a custom connector in an app that supports remote MCP connectors, such as Claude or ChatGPT, and sign in to ClinicalTracker.org when asked. There is no key to copy.

The tracker does not ask for your name or health records. Your watchlists are visible only to your own account.

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FAQ

Frequently asked questions.

Is ClinicalTracker.org free?

Yes. Search, change history for tracked studies and watchlists are free during the beta.

Is this medical advice?

No. It is information only. It does not judge whether you are eligible for a trial, rank treatments or predict whether a trial will succeed. Talk with a doctor about your own situation.

Does Recruiting mean there is an open spot?

No. It is the status written in the registry, which can be out of date and says nothing about open slots. Contact the study site listed in the record.

Where does the data come from?

From ClinicalTrials.gov and openFDA, both public sources. Each alert links to the official record so you can check it.

Can I stop the emails?

Yes. Every alert email includes an unsubscribe link, and you can change or pause what you follow from the manage link in the email.

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