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Massive study aims to unlock secrets of rare cancers

NCT ID NCT03739827

Knowledge-focused Sponsor: National Cancer Institute (NCI) Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Sep 03, 2026 · Updated 6 times

Summary

This study is collecting medical information and biological samples from up to 10,000 people with rare solid tumors, their relatives, and those with genetic mutations that raise cancer risk. Researchers hope to learn how these tumors develop and change over time. The goal is to improve screening, prevention, and treatment for rare cancers.

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 research could lead to better screening guidelines, earlier detection, and new treatments for rare solid tumors.
What could go wrong
This is an observational study, not a treatment trial. It will not directly benefit participants and may take many years to produce useful results.

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.

Participants

About 10,000 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2019

Expected to finish

Mar 2032

An estimate. End dates often move.

Lead sponsor

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

Ages

4 weeks and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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: * Cohort 1: Participants with a diagnosis of a rare solid tumor (fewer than 15 cases in 100,000 people per year). There are no age restrictions beyond the neonatal period (4 weeks). OR -Cohort 2: Participants without a rare tumor who have a germline genetic variant that predisposes to a rare solid tumor OR -Cohort 3: Relatives of participants with diagnosis of rare solid tumors who do NOT have a known germline variant that predisposes to a rare solid tumor OR * Cohort 4: Parent/guardian of child participating in a focus group if not already enrolled on the study. * Ability of subject or Legally Authorized Representative (LAR) to understand and the willingness to sign a written informed consent document. EXCLUSION CRITERIA: None

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Conditions

The condition(s) this trial relates to.

cancer childhood neoplasm neoplasm refractory malignant neoplasm

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Malignant solid tumors Other neoplasms solid tumors Pediatric solid tumor Refractory solid tumors Solid tumor

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    3 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • National Institutes of Health Clinical Center

    RECRUITING

    Bethesda, Maryland, 20892, United States

  • Oregon Health and Science University

    RECRUITING

    Portland, Oregon, 97239, United States

  • Texas Children's Hospital

    RECRUITING

    Houston, Texas, 77030, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.