Clinical trials
Proton Therapy clinical trials
Below are recruiting proton therapy clinical trials, each written for real people, not researchers. We’re tracking 111 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04894643Recruiting
Pre-surgery proton radiation plus chemo for borderline pancreatic cancer
This trial tests whether giving proton radiation and chemotherapy before surgery can shrink or control “borderline resectable” pancreatic cancer so it can be removed more effectively. It may help by improving treatment response while planning for surgery afterward.
Wiener Neustadt, Lower AustriaAges 18 years+ - NCT06006806Recruiting
Proton therapy skin effects study for breast cancer
This study looks at how proton therapy affects the skin in people being treated for early-stage breast cancer. It aims to understand skin reactions better so doctors can reduce side effects.
Knoxville, TennesseeAges 18 years+ - NCT04908709Recruiting
MRI-guided proton therapy for high-grade brain tumors in children
This study looks at how metabolism in a child’s brain tumor changes during proton therapy, using special MRI scans. It may help doctors better understand treatment response and tailor care for pediatric high-grade gliomas.
Atlanta, GeorgiaAges Up to 21 years - NCT07130682Recruiting
Proton therapy in two sessions for prostate cancer
This trial tests if giving proton radiation in just two sessions, guided by MRI, is safe and effective for low- or intermediate-risk prostate cancer. It may mean fewer trips to the hospital for treatment.
Hong KongAges Any age - NCT05055635RecruitingPhase 2
Proton radiation for anal cancer that came back after prior treatment
This trial studies a focused type of proton radiation (“pencil beam”) to treat anal cancer that has returned after you previously had radiation. It may help by aiming treatment more precisely and giving another chance at cure when doctors think it can still be treated.
Aarhus N, AarhusAges 18 years+ - NCT04291378Recruiting
Proton versus standard radiation for early breast cancer
This trial compares two types of radiation—proton therapy and standard photon therapy—for early breast cancer after surgery. It’s mainly for people whose usual radiation plan would put a higher dose to the heart and/or lungs, aiming to reduce that exposure.
AalborgAges 18 years+ - NCT06446713RecruitingPhase 1
Higher-dose proton therapy for advanced throat cancer
This trial is testing a higher, more precise dose of proton beam radiation for people with advanced throat cancer that is not connected to HPV. It aims to improve tumor control while protecting healthy tissue.
GroningenAges 18 years+ - NCT04065776Recruiting
Proton therapy that avoids the hippocampus for slow brain tumors
This study tests a proton radiation plan designed to spare the hippocampus (a memory area) in children and teens with certain low-grade brain tumors. It may help deliver treatment to the tumor while reducing unwanted brain effects.
Rochester, MinnesotaAges 6–21 - NCT07514819Recruiting
Adaptive Proton Therapy Planning for Children With Cancer
This study tests a new way to plan proton radiation therapy (a precise type of cancer treatment) for children with solid tumors or Hodgkin's lymphoma. The goal is to improve how doctors adapt treatment during therapy to better target tumors while protecting healthy tissue.
Memphis, TennesseeAges Any age - NCT07000643RecruitingPhase 3
Proton vs. standard radiation for nasopharyngeal cancer
This trial compares two types of radiation therapy—proton beam versus standard X-ray (photon)—for treating nasopharyngeal cancer. The goal is to see if proton therapy works as well as standard therapy while possibly causing fewer side effects.
JinanAges 18–75 - NCT04342429Recruiting
Proton radiation study for small cell lung cancer
This study looks at a type of radiation treatment using proton beams (IMPT) for small cell lung cancer. It may help assess whether this approach can safely deliver the planned radiation doses to the chest.
Atlanta, GeorgiaAges 18 years+ - NCT07415681RecruitingPhase 2
Photon vs. Proton Radiation for New Gynecologic Cancers
This trial compares two types of radiation (standard photon vs. newer proton) for people with newly diagnosed endometrial or cervical cancer. It aims to see if proton therapy reduces side effects while controlling the cancer just as well.
Baltimore, MarylandAges 18 years+ - NCT05541016RecruitingPhase 2
Personalized lower-dose radiation for HPV-related throat cancer
This Phase 2 study tests whether giving a less intense (de-escalated) radiation plan can work for certain people with HPV-related oropharyngeal throat cancer. It uses HPV blood testing and scans to help guide treatment, aiming to keep cancer control while reducing treatment side effects.
Scottsdale, ArizonaAges 18 years+ - NCT06200259Recruiting
Reducing Bowel Side Effects in Prostate Cancer Proton Therapy
This study tests a way to reduce stomach and bowel side effects of proton therapy for prostate cancer. It uses special software to place the proton beam more carefully, which may protect nearby organs.
Knoxville, TennesseeAges 18 years+ - NCT04832620Recruiting
Using MRI-guided planning to improve proton radiation for rare bone tumors
This trial is testing a better way to plan proton radiation using MRI images, aiming to deliver treatment more accurately for chordoma or chondrosarcoma in the spine/sacrum area. You may benefit if the trial’s planning method helps target the tumor while sparing nearby healthy tissue.
Delft, South HollandAges 50 years+ - NCT03829033Recruiting
Photon vs proton radiation for early tonsil cancer
This trial compares two types of radiation—photon therapy and proton therapy—for early-stage tonsil cancer. The goal is to see which approach works well for cure while affecting surrounding tissues differently.
GävleAges 18 years+ - NCT07750457Recruiting
Proton versus standard radiation for slow-growing brain tumors
This trial compares two types of radiation therapy (proton beams vs. standard photon x-rays) for people with certain slow-growing brain tumors (gliomas) that have a specific gene change. The goal is to see which type better preserves thinking skills and quality of life while treating the tumor.
EssenAges 18 years+ - NCT06180434Recruiting
Short-term outcomes of proton vs photon radiation for IDH-mutated gliomas
This study looks at the short-term results of proton and photon radiation therapy in people with IDH-mutated grade 2 or 3 gliomas. It compares the two types of radiation to see how well they work and what side effects might occur.
RotterdamAges 18 years+ - NCT05033288Recruiting
Compare radiation types and surgery for pelvic bone sarcomas
This study compares three treatment approaches—carbon ion radiation, proton radiation, and surgery—for sarcomas in the pelvis that involve bone. It looks to see which option best controls the tumor while helping protect nearby tissues.
Scottsdale, ArizonaAges 15 years+ - NCT06376669RecruitingPhase 2
Proton beam radiation for kidney cancer
This trial tests a precise type of radiation called stereotactic body proton therapy for people with kidney cancer who cannot have surgery or other local treatments. It aims to see if this focused radiation can control the tumor with fewer side effects.
Washington D.C., District of ColumbiaAges 18 years+ - NCT04725903Recruiting
Proton beam radiation for high-risk prostate cancer
This trial tests proton radiation therapy for people with high-risk prostate cancer. It may help by delivering radiation in a more targeted way, with the goal of controlling the cancer while reducing exposure to nearby healthy tissue.
Atlanta, GeorgiaAges 18 years+ - NCT03286335Recruiting
Proton radiation for slow-growing or benign brain tumors
This trial studies proton radiation therapy for adults with certain benign or slow-growing brain tumors. It aims to see how well tumors can be controlled, and how treatment affects quality of life and side effects.
Boston, MassachusettsAges 18 years+ - NCT07213934RecruitingPhase 1/Phase 2
Immunotherapy and radiation before surgery for recurrent head and neck cancer
This trial tests a new combination for people whose head and neck cancer has come back after prior radiation. You'll receive an immunotherapy drug (pembrolizumab) plus radiation, then surgery. The goal is to see if this approach can improve how well surgery works.
Cincinnati, OhioAges 18 years+ - NCT04423211RecruitingPhase 3
Surgery-recovered prostate cancer treated with PET-guided radiation
This trial tests whether adding targeted radiation guided by a PET scan (along with hormone therapy) can improve outcomes for prostate cancer that has come back after surgery. The PET scan helps doctors look for spots outside the usual radiation area so treatment can be tailored.
Anchorage, AlaskaAges 18 years+
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Common questions
- Are there clinical trials for proton therapy?
- Yes. Clin2 currently lists 111 recruiting proton therapy studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a proton therapy trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a proton therapy trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.