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Massive proton therapy registry aims to unlock secrets of cancer treatment

NCT ID NCT04376229

Knowledge-focused Sponsor: Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 30, 2026 · Last updated Jul 01, 2026 · Updated 1 time

Summary

This registry collects detailed information from cancer patients treated with proton radiation therapy. Researchers will track treatment plans, side effects, and quality of life over 15 years. The goal is to learn which patients benefit most from this precise form of radiation and how to improve outcomes.

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
This registry could help doctors better understand which cancer patients benefit most from proton radiation therapy and how to reduce side effects.
What could go wrong
This is an observational registry, not a treatment trial. It collects data but does not test a new therapy, so it may not directly lead to changes in care.

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 5,000 people

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

Started

Apr 2020

Expected to finish

Dec 2040

An estimate. End dates often move.

Lead sponsor

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.

Who is studied

cancer patients with proton therapy

Ages

18 to 100 years

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * All patients treated at the proton center. Exclusion Criteria: * Any other than what is supplied in the inclusion criteria

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Conditions

The condition(s) this trial relates to.

cancer Neoplasms, Second Primary therapy-related myeloid neoplasm

As listed by the trial registrant

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

Cancer, therapy-related

How to take part

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

  1. The places running it

    4 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

  • Bayview Hospital

    RECRUITING

    Baltimore, Maryland, 21224, United States

  • Johns Hopkins Hospital

    RECRUITING

    Baltimore, Maryland, 21287, United States

  • Sibley Memorial Hospital

    RECRUITING

    Washington D.C., District of Columbia, 20016, United States

  • Suburban Hospital

    RECRUITING

    Washington D.C., District of Columbia, 20814, United States

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