No treatment, just samples: new study aims to understand cancer immunity
NCT ID NCT00034216
First seen Jun 27, 2026 · Last updated Sep 02, 2026 · Updated 18 times
Summary
This study collects blood and other biospecimens from adults with cancer to analyze immune-suppressing cells and genetic changes. Up to 1,750 participants will provide samples before and after chemotherapy. The goal is to better understand how cancer affects the immune system, but no treatment is given as part of this research.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 1,750 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2002
- Lead sponsor
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A government research agency
The lead sponsor is the US National Institutes of Health.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Primary clinical; healthy volunteers may include NIH employees
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
* INCLUSION CRITERIA: Patients with a known or suspected malignancy and healthy volunteers 18 years of age and older are eligible. Performance status of ECOG 0, 1, 2, or 3 for admission to this protocol. Ability to understand and the willingness to sign a written informed consent document. INCLUSION FOR APHERESIS: Note: Effective with Amendment CC, participants will no longer be asked to undergo apheresis. This content is being retained for historical reference. Hemoglobin greater than or equal to 10 mg/dL and platelet count \> 75,000/mm(3) Weight greater than 25 kg HIV negative Prothrombin Time - within normal limits Partial Thromboplastin Time - within normal limits Medically indicated central line in place or adequate peripheral venous access EXCLUSION CRITERIA: None.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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National Institutes of Health Clinical Center
RECRUITINGBethesda, Maryland, 20892, United States
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