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Clinical trials and research at Proton Collaborative Group

• 6Clinical trials
• 1Country

Newest trials

All recruiting trials (6)

• Comparing two radiation therapy schedules for breast cancer using proton therapy

  This study is testing if a shorter three-week proton radiation therapy for breast cancer works just as well and causes the same side effects as the standard five-week treatment for women who have had surgery.

  Recruiting at 9 sites Phase 3 Proton Collaborative Group · Scottsdale, Arizona and 8 other locations · NCT05856773

• Proton radiation treatment for pancreatic cancer patients who can't have surgery

  This study is testing if combining proton radiation with a chemotherapy pill can help pancreatic cancer patients who can't have surgery become eligible for surgery later on.

  Recruiting at 3 sites Phase 2 Proton Collaborative Group · Little Rock, Arkansas and 3 other locations · NCT02598349

• Proton therapy for early stage breast cancer treatment

  This study is testing whether proton therapy can be a better treatment for women with early stage breast cancer by focusing on the tumor while reducing side effects compared to traditional radiation.

  Recruiting at 9 sites Phase 2 Proton Collaborative Group · Scottsdale, Arizona and 8 other locations · NCT01766297

• Comparing radiation therapy with and without hormone treatment for prostate cancer

  This study is testing whether adding hormone treatment to radiation therapy can help men with intermediate-risk prostate cancer feel better compared to radiation therapy alone.

  Recruiting at 4 sites Phase 3 Proton Collaborative Group · Scottsdale, Arizona and 3 other locations · NCT01492972

• Registry for outcomes of radiation therapy in cancer patients

  This study is collecting information from cancer patients receiving different types of radiation therapy to see how well these treatments work and how safe they are.

  Recruiting at 29 sites Proton Collaborative Group · Scottsdale, Arizona and 28 other locations · NCT01255748

• Proton and conventional radiation for prostate cancer after surgery

  This study is testing whether proton radiation or conventional radiation with hormone therapy can help men with recurring prostate cancer after surgery feel better and improve their chances of recovery.

  Recruiting at 6 sites Proton Collaborative Group · Little Rock, Arkansas and 5 other locations · NCT00969111

Quick answers

How many clinical trials run by Proton Collaborative Group are recruiting right now?

6, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.

Where are these trials running?

All of them have sites in United States. Each study page lists its sites and which ones are recruiting.

What phases are they in?

Phase 2: 2, Phase 3: 2. Trials with no phase listed are usually device, behavioural or observational studies.

How do I join one?

Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.

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