Can a standardized Watch-and-Wait plan reduce prostate cancer overtreatment?
NCT ID NCT02914873
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study compares a standardized active surveillance protocol to usual care for men with low-risk prostate cancer. The goal is to see if a clear set of rules for when to start treatment can reduce unnecessary treatments and side effects without raising the risk of cancer spread. About 2008 men will take part across multiple centers.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- active surveillance (monitoring with delayed treatment if needed)
- What this could lead to
- If successful, this could help many men with low-risk prostate cancer avoid unnecessary treatments and side effects while staying safe.
- What could go wrong
- This is a large but early-stage comparison study; the standardized protocol may not prove better than current practice, and some men might still face disease progression.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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2,008 people
The number who actually took part.
- Started
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Oct 2016
- Expected to finish
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Dec 2034
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Male participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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: * Recently (within 12 months) diagnosed adenocarcinoma of the prostate * Tumor stage less than or equal to T2a, NX, M0 * PSA less than 15 ng/ml, PSA density less than or equal to 0.20 ng/ml/cc * Gleason pattern 3+3=6 (any number of cores, any cancer involvement) * Gleason pattern 3+4=7 (less than 3 cores (or less than 30% of cores if more than 10 cores are taken), less than 10 mm cancer in one core) * Life expectancy more than 10 years with no upper age limit * Candidate for curative treatment if progression occurs * Signed written informed consent 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.
Contacts and locations
Locations
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Akademiska University Hospital
Uppsala, Sweden
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Bedford Hospital
Bedford, United Kingdom
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Croydon University Hospital
Croydon, United Kingdom
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Epsom and St Helier Hospital
London, United Kingdom
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Guy's Hospital
London, United Kingdom
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Helsinki University Hospital
Helsinki, Finland
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Hospital of Vestfold
Tønsberg, Norway
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Linköping University Hospital
Linköping, Sweden
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Odense University Hospital
Odense, Denmark
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Oslo University Hospital
Oslo, Norway
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Queen Elisabeth Hospital
London, United Kingdom
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Rigshospitalet
Copenhagen, Denmark
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Royal Marsden Hospital
London, United Kingdom
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Sahlgrenska University Hospital
Gothenburg, Sweden
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Seinäjoki Central Hospital
Tampere, Finland
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St Olavs University Hospital
Trondheim, Norway
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Sunderby Regional Hospital
Luleå, Sweden
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Sundsvall Regional Hospital
Sundsvall, Sweden
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Umeå University Hospital
Umeå, Sweden
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University Hospital of North Norway
Tromsø, Norway
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Växjö Hospital
Vaxjo, Sweden
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Ålesund Regional Hospital
Ålesund, Norway
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Örebro University Hospital
Örebro, Sweden
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Other studies related to the condition(s) this trial covers.
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- Can a One-Week radiation course match four weeks for prostate cancer?
- Can a new PET tracer spot hidden prostate cancer spread?
- Can a gel cushion shield the rectum during prostate radiation?
- A scanner in the operating room could show surgeons exactly where prostate cancer remains