Massive cancer screening trial aims to cut deaths
NCT ID NCT00339495
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study is testing whether regular screening for prostate, lung, colorectal, and ovarian cancers can reduce deaths from these diseases. About 154,900 men and women aged 55-74 were randomly assigned to either get screened or receive usual care. Researchers are tracking cancer cases and deaths over many years to see if screening makes a difference.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this could show that regular screening helps catch these cancers early and reduce deaths.
What could go wrong
This is an observational study, not a treatment trial. Screening may not lower death rates and could lead to unnecessary procedures or anxiety.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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.
Contacts and locations
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Locations
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Westat, Inc.
Rockville, Maryland, 20850, United States