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Proton beam offers new hope for recurrent tumors

NCT ID NCT05313191

Disease control Sponsor: The New York Proton Center 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study looks at whether proton therapy can safely treat cancers that return after standard radiation. Proton beams are more targeted than traditional X-rays, so they may deliver stronger doses to the tumor while sparing healthy tissue. Researchers will track side effects and how well the cancer is controlled in 1,800 adults with various recurrent or new tumors.

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

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

About 1,800 people

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

Started

Jan 2022

Expected to finish

Jan 2028

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.

Ages

18 years and older

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: * Age 18 years * Patient provides study specific informed consent prior to study entry. * Documented history and physical exam within 90 days prior to registration. * ECOG PS 0, 1, or 2 within 90 days prior to registration Exclusion Criteria: * Non malignant systemic disease that would preclude the patient from receiving study treatment or would prevent required follow up. * Prior invasive non study malignancy unless disease free for ≥ 3 years * Non melanoma skin cancer, low risk prostate cancer, well differentiated thyroid cancers, in situ carcinomas of the oral cavity, cervix, and other organs, and tumors that are not thought to impact the life expectancy of the patient are permissible. * History of active connective tissue disorder (i.e., systemic lupus erythematosus, scleroderma), dermatomyositis, xeroderma pigmentosum

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm central nervous system cancer digestive system cancer digestive system neoplasm female reproductive organ cancer head and neck cancer Head and Neck Neoplasms neoplasm prostate cancer thoracic cancer

As listed by the trial registrant

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

Breast cancer CNS cancer Gi cancer Gynecologic cancer Head and neck cancer Prostate cancer Thoracic cancer

How to take part

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

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

    1 site. The list below names each one and where it is.

  3. 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 ↗

  4. 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

Study contacts

  • Contact

    Email: •••••@•••••

Locations

  • The New York Proton Center

    RECRUITING

    New York, New York, 10035, United States

    Contact Email: •••••@•••••

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