Clinical research studies

Medicare Part A (Hospital Insurance)


Medicare Part B (Medical Insurance)

 cover some costs, like office visits and tests, and in certain qualifying clinical research studies.

Your costs in Original Medicare

You may pay 20% of the 

Medicare-Approved Amount

, depending on the treatment you get. The Part B 

deductible [glossary]

 may apply.

    What it is

    Clinical research studies (also called clinical trials) test how well different types of medical care work and if they’re safe, like how well a cancer drug works. Clinical research studies may involve diagnostic tests, surgical treatments, medicine, or new types of patient care. They may:

    • Study how well new treatments and tests benefit patients
    • Compare different treatments for the same condition to see which treatment is better
    • Study new ways to use existing treatments


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