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Proton beam may spare heart and lungs in breast cancer radiation

NCT ID NCT03270072

Knowledge-focused Sponsor: Massachusetts General Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 2 times

Summary

This study looks at 100 women with stage II or III breast cancer to see if proton beam radiation causes less damage to the heart and lungs than standard X-ray radiation. Participants receive either type of radiation as part of a larger trial. Researchers will measure changes in heart function and lung tissue using imaging and scans. The goal is to find out which radiation method is safer for nearby organs.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
proton beam radiation
What this could lead to
If successful, this could show that proton beam radiation causes less heart and lung damage than conventional radiation for breast cancer patients.
What could go wrong
This is an observational study, not a treatment trial. It only measures side effects, not whether one radiation type cures cancer better. Results may not apply to all patients.

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 100 people

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

Started

Oct 2017

Expected to finish

Dec 2026

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

Patients enrolled at Massachusetts General Hospital on the Radiation Therapy Oncology Group (RTOG) Trial 3510 (Pragmatic Phase III Randomized Trial of Proton vs Photon Therapy for Patients with Non-Metastatic Breast Cancer Receiving Comprehensive Nodal Radiation: A Radiotherapy Comparative Effectiveness (RADCOMP) Consortium Trial). (NCT02603341).

Ages

21 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: * Eligible for and scheduled to receive radiation therapy on Radiation Therapy Oncology Group (RTOG) Trial 3510 (Pragmatic Phase III Randomized Trial of Proton vs Photon Therapy for Patients with Non-Metastatic Breast Cancer Receiving Comprehensive Nodal Radiation: A Radiotherapy Comparative Effectiveness (RADCOMP) Consortium Trial). (NCT02603341) * Ability to understand and the willingness to sign a study-specific written informed consent document Exclusion Criteria: * There are no exclusion criteria.

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm

As listed by the trial registrant

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

Breast cancer stage II Breast cancer stage III

Contacts and locations

Locations

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114, United States

More trials for these conditions

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