Join this study as a patient

Thank you for your interest. Please ask yourself these three questions:

  1. Are you ≥ 18 years of age or older?
  2. Have you been diagnosed with a blood clot in your leg in the past (more than 3 months ago)?
  3. Do you now have leg heaviness, fatigue, swelling, aching, or pain?

If the answer to all three questions is YES, then you might be a perfect fit for the

C-TRACT Study.

☎ Call 1-866-974-CLOT (2568)

✉ Send an e-mail note to


You can also do the following:

Find the Nearest Clinical Center

Find a C-TRACT Clinical Center nearest to where you live and write down the phone number of the contact person provided.

Study Resources

Download our brochure to learn more about the study or our provider guide to help establish if your patient could be eligible

To talk to a member of the C-TRACT Trial study team

☎ Call 1-866-974-CLOT (2568)

✉ Send an e-mail note to