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Coverage

Medicare and clinical trials

Medicare covers the routine costs of qualifying clinical trials, like office visits and tests, and care for complications. What's covered, what isn't, and how it works with Medicare Advantage.

Checked against official sources on October 27, 2026 · How we check facts

Clinical trials (also called clinical research studies) test whether a treatment works and is safe, like a new cancer drug. If you join a qualifying trial, Medicare helps pay for your usual care during it.

What Medicare covers

  • The routine costs of a qualifying trial: items and services Medicare would normally cover, like office visits and tests.
  • Reasonable and necessary care for complications that come from taking part.

You pay your usual share, often 20% of the Medicare-approved amount, and the Part B deductible may apply.

What Medicare doesn't cover

  • The treatment being tested, unless Medicare would cover it anyway.
  • Items and services used only to collect data for the study.
  • Anything the study's sponsor usually gives every participant for free.

Which trials qualify

A qualifying trial must have a therapeutic purpose. Trials of treatments must enroll people who have the condition rather than healthy volunteers, and trials designed only to test toxicity aren't covered. Ask the study team whether the trial qualifies for Medicare coverage before you enroll.

With Medicare Advantage

If you're in a Medicare Advantage plan, Original Medicare may pay some trial costs along with your plan. Contact your plan before you join a trial to learn what it pays and what you'll owe.

Questions to ask before you join

  • Does this trial qualify for Medicare coverage?
  • Which costs will the sponsor pay, and which will be billed to Medicare?
  • What will I owe out of pocket?

Common questions

Does Medicare pay for clinical trials?

Medicare covers the routine costs of qualifying clinical trials, like office visits and tests, and care for complications. You pay your usual share, often 20% after the Part B deductible.

Does Medicare pay for the experimental treatment?

Not usually. The item or service being studied isn't covered unless Medicare would cover it outside the trial. Sponsors often provide it free.

Can I join a clinical trial if I have Medicare Advantage?

Yes. Original Medicare may pay some costs along with your plan. Contact your plan first to learn what you'll owe.

Sources

General information, not advice about a specific plan.