← Eichor
Study identifier: NCT00034216 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Collection of Blood From Patients With Cancer

Condition: Prostate Cancer · Breast Cancer · Colon Cancer  ·  Sponsor: National Cancer Institute (NCI)

PhaseN/A
Planned participants1750
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersYes

About this study

This study will collect blood from patients with cancer to study the level of cells which decrease the immune response (suppressor cells) before and after chemotherapy. Patients 18 years of age and older with cancer may participate. This study does not involve treatment. Participants will have about 50 ml (3 tablespoonfuls) of blood drawn. Depending on their condition, patients may be invited to enroll in a clinical research study involving chemotherapy, radiotherapy, or surgery. Additional 40-ml blood samples may be drawn during the course of treatment.

This description comes directly from the study's public registry record.

Talk to the study team

Michell J Manu, R.N.  ·  (240) 529-3415  ·  michell.manu@nih.gov

Jennifer L Marte  ·  (301) 496-7214  ·  martej@mail.nih.gov

Always discuss trial participation with your own doctor first.

Locations (1)

National Institutes of Health Clinical CenterBethesda, Maryland, United StatesRecruiting

Follow this study

Get one email when the public record changes — results posted, or the study's status changes. Nothing else, ever.

We email about this public record only. Unsubscribe anytime with one click. Never medical advice.

Is this your study? This page was generated automatically from the public registry record. Sponsors can claim it — free — to add branding and verified contact routing. Claim this page →

This page is independently generated by Eichor from the public ClinicalTrials.gov record and re-synced daily. It is not the sponsor's official website unless claimed. Nothing here is medical advice; eligibility is always determined by the study team — talk to your own doctor first.

Source record: clinicaltrials.gov/study/NCT00034216