Know when a trial or drug changes status.

Posolix is a real-time clinical trial and FDA approval tracker. Subscribe to an illness or a medication in the dashboard and get an email as soon as a new trial or approval comes out, or send every change to your own endpoint by webhook.

Try for free See the dashboard

7-day free trial, then plans from $29 a month. See pricing.

One feed for trials and approvals, three ways to use it.

Pick the conditions, sponsors, phases or drug classes you care about. Posolix tracks them and tells you what changed, not just what's there.

Webhooks

Subscribe with a filter and get a signed POST every time a matching record changes. Each event carries the before and after values, so you don't have to diff anything yourself.

POST https://your-app.com/hooks/posolix
{
"event": "trial.status_changed",
"occurred_at": "2026-09-18T14:02:11Z",
"trial": {
  "phase": "PHASE3",
  "conditions": ["Non-small cell lung cancer"],
  "sponsor": "Example Therapeutics"
},
"changes": {
  "overall_status": {
    "from": "RECRUITING",
    "to": "ACTIVE_NOT_RECRUITING"
  }
}
}  // illustrative, fields may change

Historical API

Query every change we've recorded, filtered by date, sponsor, condition, phase or event type. Useful for backtesting, research and filling a database on day one.

Search dashboard

Browse the same data without writing code. Subscribe to any illness, medication or search and get an email when something new comes out.

Pick the product you need.

Every product runs on the same tracked data. Developers get it by API or webhook, and everyone else by email.

Clinical trials API

Search the US trial registry and pull the full change history of any trial.

Explore the API

FDA drug approvals API

New approvals and supplements as dated events, plus every application's submission history.

Explore the API

Drug label API

Every version of every prescribing label, with the sections that changed.

Explore the API

Clinical trial webhooks

A signed POST to your endpoint for each trial, approval or label change you subscribe to.

See the webhooks

Clinical trial alerts

An email when a new trial for an illness or drug you follow is registered, recruits or posts results.

See trial alerts

FDA approval alerts

An email when the FDA approves a drug you follow or changes its label.

See approval alerts

Which one do you need?

Same data, four ways to get it. The API plan gets all four.

Feature	Email alerts	Dashboard	API	Webhooks
Best for	Following an illness, drug or company	Searching, browsing and exporting	Products, research and backtesting	Reacting to changes in your own systems
Code needed	No	No	Yes	Yes
How changes reach you	Real-time email	You look them up	You request them	Real-time POST to your endpoint
History	Linked from every email	Timeline on every record	History endpoints and events	Backfill from the events API
Export	None	CSV	JSON	JSON
Learn more	Trial and FDA alerts	Dashboard preview	Trials, approvals, labels	Webhooks

Data coverage.

Three public US sources, checked on a schedule. Every version is stored, so history builds up from the day we start tracking a record. Full details are in the API docs.

Data	What we track	Events	Checked	History
Clinical trials	Every registered US study: status, phase, enrollment, dates, sites and results	`trial.*` (6 types)	At least daily	Every version from when we start tracking
Drug approvals	Drug applications (NDA, ANDA, BLA), their products and submissions	`drug.approved`, `drug.supplement_approved`	At least daily	Full submission history as published by the FDA
Drug labels	Prescribing information by SPL set ID, section by section	`label.updated`, `label.boxed_warning_changed`	At least daily	Every version from when we start tracking

Check frequency is our target at launch. The public FDA datasets refresh on their own schedule, often weekly, so FDA changes can take a few days to reach any service built on them.

Search every trial and approval, then subscribe to what you care about.

Search for an illness or a medication, narrow it down by phase, sponsor or status, and hit Subscribe. From then on we'll email you whenever a matching trial is registered, changes status or a drug is approved.

lung cancer, phase 3, status changed in last 30 days

Subscribed. We'll email you when a new phase 3 lung cancer trial or approval comes out.

Type

Clinical trials
Drug approvals
Label changes

Phase

Phase 1
Phase 2
Phase 3

Status

Recruiting
Active
Completed

Sample resultsSorted by latest change

Study	Sponsor	Latest change	When
Maintenance therapy after chemoradiationPhase 3, 412 participants	Example Therapeutics	Stopped recruiting	2 days ago
First-line combination in advanced diseasePhase 3, 780 participants	Sample Bio	New site added	5 days ago
Targeted therapy for a rare mutationPhase 3, 260 participants	Placeholder Pharma	Completion date moved	12 days ago
Subcutaneous vs intravenous dosingPhase 3, 530 participants	Demo Oncology	Started recruiting	19 days ago

Early design preview with illustrative records. The finished dashboard may look different.

See the full history

Every record shows a timeline of what changed and when, from first registration to results.

Subscribe to any search

Follow an illness, a medication or a sponsor and get an email when a new trial or approval matches. Developers can get the same alerts as webhooks.

Export in one click

Download results as CSV for spreadsheets, reports or your own analysis.

Who it's for.

Biotech and pharma teamsKeep an eye on competitor trials and approvals without checking sites by hand.

Investors and analystsGet catalysts the moment they're public, with history to put them in context.

Health-tech developersAdd trial and drug data to your product through one consistent API.

Researchers and journalistsSearch how studies and labels have changed over months or years.

Questions.

What do I get?

Every plan includes a login to the search dashboard and email alerts. The API and Team plans add an API key for webhooks and the historical API. We're still early, so expect some changes while we learn what you need.

How do I get in?

Create an account with your email address. Your 7-day free trial starts right away, with the dashboard, email alerts and an API key. No card needed.

Can I get notified about a specific illness or medication?

Yes. Search for it in the dashboard, add filters like phase or sponsor if you want, and click Subscribe. We'll email you when a matching trial is registered or changes status, or when a matching drug is approved. Developers can have the same alerts sent to their own endpoint as webhooks.

How much does it cost?

Every account starts with a 7-day free trial, no card needed. After that, plans start at $29 a month for alerts and $149 a month for the API and webhooks. See pricing.

How fresh is the data?

We check for updates on a regular schedule and send emails and webhooks as soon as we detect a change.

Can I use this for medical decisions?

No. Posolix is a data and notification service, not medical advice. Always verify a record independently before acting on it.

Try Posolix free.

Your first 7 days are free, no card needed. Create your account and you're in.

Try for free