Research Donor Invitation

Your Chance to Make a Difference

We invite adults with a current or previous cancer diagnosis to donate one blood sample for research that advances whole-cell liquid biopsy.

  • IRB-Approved Research Study
  • No Cost to Participate
  • No Individual Results Returned

What We're Asking of You

One-Time Blood Draw

About 30 mL in three standard tubes. No repeat visits.

At Home or at a Lab

Draw at home, or at a local lab or clinic.

About an Hour of Your Time

One visit, start to finish.

No individual results are returned. The study does not diagnose cancer or guide treatment.

The Purpose: Read the Whole Cell, Not Just the Fragments

Most blood-based tests read small DNA fragments that circulate freely. We study whole, intact circulating tumor cells, which may reveal more of a cancer's biology.

This study

Whole Cells

Intact circulating tumor cells

  • Complete genetic material kept together in one cell
  • DNA and RNA from the same cell
  • Cells can be counted and characterized
  • Supports study of tumor evolution and resistance

Most blood tests

Fragments

Cell-free DNA

  • Short pieces of DNA shed into the blood
  • Mixed with DNA from normal cells
  • No cell to count or examine
  • Useful, but holds less of the tumor's biology

DNA Analysis

Detecting cancer-specific markers in blood.

RNA Analysis

Evaluating gene expression in tumor cells.

CTC Research

Studying whole circulating tumor cells from one draw.

This is research only. It is not a cancer test and does not replace your regular care.

In This Focused Study, Every Sample Counts

Liquid biopsy research analyzes cancer signals in a blood sample. This study collects blood from people diagnosed with cancer so researchers can isolate intact circulating tumor cells, sequence their DNA and RNA, and compare results across samples to identify shared genomic patterns.

“Your blood has told your cancer story. Now it could help us learn from it. Circulating tumor cells are rare in a blood sample, and studying them requires a large, well-characterized sample set. Each donor in this study helps us build it.”

Tifiny McDonald, Chief Executive & Financial Officer, CCDx

Who May Be Eligible?

You may be able to help if you:

  • Are 21 or older
  • Have a physician-confirmed current or previous cancer diagnosis
  • Can have a routine blood draw

No surgery, overnight stays or dietary restrictions are required.

We are especially seeking prostate, ovarian, breast, lung and pancreatic cancers. The study accepts any cancer type, and other solid tumors may be considered. The CCDx study team confirms eligibility.

How It Works, Six Simple Steps

Most of the process happens at home. The in-person part usually takes about an hour.

  1. Contact CCDx

    Submit the short interest form below.

  2. Brief Questionnaire

    A roughly five-minute eligibility form, followed by a call from a team member.

  3. Review and Consent

    Review the IRB-approved informed consent and HIPAA authorization, then decide.

  4. Kit Shipped to You

    A collection kit arrives at no cost with everything the lab needs to draw and package your sample.

  5. Blood Draw

    Bring the kit to a local lab or clinic, or arrange a home draw, for three tubes (about 30 mL).

  6. The Lab Ships Your Sample

    You leave the sample with the lab. The lab ships the sealed kit securely to the CCDx laboratory in Jupiter, Florida.

About the blood draw. Risks include brief discomfort, minor bruising or, rarely, lightheadedness. Report concerns to CCDx at 888-617-2239 and seek medical care if needed.

Thank You for Taking This Step

Submitting does not enroll you. It only lets the study team reach out.

Frequently Asked Questions

Is there a charge to participate?

No. CCDx provides the kit, return shipping, and any home-draw or local-lab arrangement.

Will I receive results?

No. Individual results are not provided because the testing is restricted by a formally approved research agreement.

Who may be eligible?

Adults 21 or older with a physician-confirmed current or previous cancer diagnosis who can have a routine blood draw.

What happens after I express interest?

The team contacts you, explains the study, and reviews the consent and HIPAA authorization before any procedure.

How much blood is drawn?

About 30 mL, roughly two tablespoons, in three tubes.

Are there risks?

Those of a routine blood draw: brief discomfort, minor bruising or, rarely, lightheadedness.

Will this affect my medical care?

No. Participation is voluntary and does not change your treatment.

Can I change my mind?

Yes. You may withdraw at any time as described in the consent form.

Who do I contact?

donorcare@cancercelldx.com or 888-617-2239.

Advarra IRB Approved · PRO04075939 · Approval Date 26 Aug 2026

This is a research study only. No individual results are returned, and participation does not diagnose cancer or guide treatment. Participation is voluntary and requires screening and informed consent.