Breast cancer clinical trials

2,825 studies are looking for volunteers right now. Search near you to see which are close by and who can take part.

Or see all breast cancer studies in TrialFinder. Live data from ClinicalTrials.gov, updated daily.

At a glance

Recruiting now
With U.S. sites
Accept healthy volunteers
267
people without the condition

Where the studies are

U.S. states with the most recruiting breast cancer studies. A study counts once in each state where it has a site.

  1. California355
  2. New York352
  3. Texas352
  4. Florida304
  5. Massachusetts224
  6. Pennsylvania214
  7. Ohio204
  8. Tennessee200
  9. Illinois198
  10. North Carolina194
  11. Virginia193
  12. Michigan183

Also in China (727), France (245), Italy (231), Spain (185), Canada (172), South Korea (141), Germany (139), United Kingdom (124).

Types of study

Phases 1 to 4 test medicines, from first safety checks to long-term follow-up after approval. Trials of devices and programs have no phase. Observational studies give no study treatment.

  • Early phase 136
  • Phase 1215
  • Phase 1 / Phase 2186
  • Phase 2555
  • Phase 2 / Phase 326
  • Phase 3232
  • Phase 441
  • No phase (devices, programs)849
  • Observational685

Recently updated studies

Recruiting breast cancer studies whose listing changed most recently. Open one in TrialFinder to check if you might qualify.

Worth knowing

  • Taking part is your choice, and you can stop at any time.
  • Each study has rules about who can join. The study team checks them with you before you start.
  • Talk to your doctor about whether a study is a good fit for you.