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Help Fight Blood Cancer

PCROWD is a medical research data bank. 

We study blood samples and analyze data about

early phases of blood conditions that may develop into cancer. 

These early conditions are called precursor conditions.

If you have a precursor condition, please join our study.

We're on a mission to stop blood cancer before it starts  

Who can join?

Complete eligibility survey
Anyone, age 18+, who has been diagnosed with a precursor condition can join.
These conditions may include: (in alphabetical order)

  • Clonal Hematopoiesis of Indeterminate Potential (CHIP)

  • Monoclonal B cell Lymphocytosis (MBL)

  • Myelodysplastic Syndrome (MDS)

  • Monoclonal Gammopathy of Undetermined Significance (MGUS)

  • Myeloproliferative Neoplasms (MPN) -such as Polycythemia Vera, Essential Thrombocythemia, or Myelofibrosis

  • Smoldering or Indolent Multiple Myeloma (SMM)

  • Smoldering Waldenström Macroglobulinemia (SWM)

  • OTHER precursor hematological condition


Please note that you are not eligible for this study if you have already been diagnosed with a blood cancer. You may visit this site for other studies.

Please invite your first degree family members to our corresponding study, PROMISE.

If you have a precursor condition, please invite your first degree family members to enroll in the PROMISE study, even if you choose not sign up for the PCROWD study. The PROMISE study seeks to enroll people at higher risk for developing pre-cursor conditions, such as African Americans and first degree family members of people with precursor conditions. Your siblings, parents and adult children may wish to enroll.

How do I join?


The PCROWD Study starts easy and stays easy. Here's what's involved.

Enroll & Verify Eligibility

You may join online or call 617.582.8664 if you need help to complete your registration.

Then answer a few questions to confirm eligibility

View & Sign

Review terms, learn how we protect your privacy, and give your consent electronically.

List Basic Info

Provide contact information, demographics, and condition diagnosis

Provide Medical
Info and allow contact

Take Survey: 

Answer questions about medical history, lifestyle, health habits, and your family history

Authorize Contact: 

Give your consent for us to contact your medical providers to obtain your  medical record about your blood condition.

Receive Kit & Send Samples


Share your appointment schedule so we can send you a collection kit every time you have your blood drawn to follow your precursor condition.

What do we do with your samples?

Share Medical Record Updates


Keep Us Up-To-Date: 

Help keep us informed so that we know about changes in your blood condition. The more we know, the better we'll be able to discover trends that save lives.

What do we do with this information?

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