Clinical trials
Radiotherapy clinical trials
Below are recruiting radiotherapy clinical trials, each written for real people, not researchers. We’re tracking 1,308 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04731610Recruiting
Radiation after thymoma surgery versus watchful waiting
This trial compares two approaches after complete surgical removal of stage IIb or III thymoma: targeted radiation (conformal post-operative radiotherapy) or no further treatment right away (surveillance). It aims to see whether adding radiation lowers the risk of the cancer coming back without causing unacceptable side effects.
CaenAges 18–75 - NCT04702581RecruitingPhase 3
Delayed radiation versus usual timing for certain brain tumors
This trial studies whether delaying radiation therapy helps people with a slow-growing brain tumor called low-grade oligodendroglioma that has specific genetic markers. It compares delayed radiation to standard timing to see which approach controls the tumor with acceptable side effects and quality of life.
AmiensAges 18 years+ - NCT04747054RecruitingPhase 3
Radiation plus pembrolizumab for newly diagnosed metastatic head and neck cancer
This trial studies whether adding pembrolizumab (an immune system medicine) to radiation can improve outcomes in people newly diagnosed with metastatic head and neck squamous cell cancer. It may help the immune system better recognize and fight the cancer alongside radiation.
AvignonAges 18 years+ - NCT04680715RecruitingPhase 2
Tested radiation before and after breast surgery in older women
This Phase 2 trial looks at a specific radiation timing and technique around the time of breast-conserving surgery. It may help reduce the chance the cancer comes back in selected older patients with certain early-stage, hormone-positive, HER2-negative breast cancers.
Clermont-FerrandAges 65 years+ - NCT04610372Recruiting
Targeted radiation plus hormone therapy for prostate cancer spread
This study compares different ways of giving radiation (SABR or brachytherapy) along with long-term hormone therapy for men whose prostate cancer has spread to a limited number of spots in the body. It aims to see which radiation approach controls the cancer as well as possible while keeping quality of life in mind.
Kelowna, British ColumbiaAges 18 years+ - NCT04649125Recruiting
Single-shot versus multi-day palliative radiation for metastatic cancer
This trial compares a single treatment session (one-fraction radiation) versus the usual multiple sessions (multi-fraction radiation) to help relieve symptoms from metastatic cancer. It may help your care team find the most effective and practical schedule for symptom control.
Saint Leonards, New South WalesAges Any age - NCT04378023Recruiting
Liver transplant plus chemo-radiation for bile duct cancer
This study tests giving chemo and radiation before a liver transplant for an unresectable bile duct cancer near the liver (hCCA). If your cancer can’t be removed with surgery right now, this approach aims to shrink and control it so transplant may become an option.
Barcelona, BarcelonaAges 18–70 - NCT04098471Recruiting
Comparing two rectal cancer surgeries for T2 tumors
This trial compares two different surgery approaches for early-stage rectal cancer (T2N0M0) that is close to the anus. It tests whether a less invasive local removal followed by radiation works as well as more extensive surgery (total mesorectal excision).
Nanjing, JiangsuAges 18–75 - NCT04109079Recruiting
Best surgery plan for breast cancer lymph nodes after chemotherapy
This study looks at the safest and most useful way to remove and check breast-cancer lymph nodes in the armpit after you finish chemotherapy given before surgery. It may help you avoid unnecessary surgery while still getting accurate information about how well the treatment worked.
DublinAges 18 years+ - NCT03853733Recruiting
Shorter radiation plan for non-surgery rectal cancer
This trial looks at a shorter radiation schedule for people with advanced rectal (or nearby sigmoid) cancer who cannot have surgery. The goal is to control the cancer while keeping treatment simpler, especially for those who cannot safely undergo an operation.
Terrassa, CataloniaAges 18 years+ - NCT03550391RecruitingPhase 3
Surgery-like brain radiation vs avoiding the memory center
This trial compares two ways of giving radiation to the brain for people with 5 or more brain metastases: focused stereotactic radiosurgery, or a whole-brain approach that tries to spare the memory area (with memantine). It aims to see which method better protects thinking and memory while still treating the tumors.
Tucson, ArizonaAges 18 years+ - NCT03340129RecruitingPhase 2
Nivolumab plus focused brain radiation for melanoma spread
This trial studies whether giving the immunotherapy drug nivolumab together with targeted brain radiation (not whole-brain radiation) helps people with melanoma that has spread to the brain. It aims to improve brain control while keeping side effects manageable.
Sydney, New South WalesAges 18–120 - NCT03378856Recruiting
Testing new technology for radiation treatment
This study is evaluating a technological innovation used during radiation therapy (or a type called brachytherapy). If you are currently receiving these treatments and can consent, you may be able to take part.
Kelowna, British ColumbiaAges 18 years+ - NCT03073278Recruiting
Targeted re-radiation for prostate cancer recurrence in one area
This study tests a focused radiation treatment (SBRT) to a small, clearly identified spot in the prostate for men whose prostate cancer has come back after prior external beam radiation. It may help control cancer while limiting radiation to the rest of the prostate and nearby organs.
St Leonards, New South WalesAges 18 years+ - NCT02984761Recruiting
Surgery vs focused radiation for early lung cancer
This trial compares two ways to treat early-stage lung cancer: surgery or a precise type of radiation called stereotactic radiotherapy. It aims to find out which approach works best for people whose cancer is small and has not spread.
Long Beach, CaliforniaAges 18 years+ - NCT02633553Recruiting
Radiation after surgery for stage II or III thymoma
This trial looks at adding radiation after a complete surgery to remove a thymoma (a tumor from the thymus) at stages II or III. It may help lower the chance the cancer comes back by treating leftover microscopic disease after surgery.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT02421718Recruiting
Follow-up program for lung cancer and related conditions after radiation
This trial studies a standard follow-up plan to help you stay on track after radiation treatment for lung cancers or certain related conditions. It may help your care team monitor symptoms and outcomes in a consistent way.
Groningen, Provincie GroningenAges 18 years+ - NCT07162506RecruitingPhase 2
Chemo-immunotherapy then surgery or radiation for esophageal cancer
This trial compares two standard treatments for esophageal cancer that has responded to initial chemo-immunotherapy: surgery to remove the tumor or radiation combined with chemotherapy. The goal is to see which approach offers better outcomes and quality of life.
Tianjin, Tianjin MunicipalityAges 18–75 - NCT07721181Recruiting
STEP-UP: Higher radiation for recurrent rectal cancer
This trial tests giving a higher dose of radiation to people whose rectal cancer has come back in the pelvis after surgery and cannot be removed. It aims to see if more radiation can help control the tumor when surgery is not an option.
Maastricht, LimburgAges 18 years+ - NCT01185132RecruitingPhase 3
IMRT versus partial-breast radiation after lumpectomy
This study compares two different ways of giving radiation to the breast after lumpectomy for early-stage breast cancer. It may help determine which approach controls the cancer well while reducing radiation to surrounding healthy tissue.
Aurora, ColoradoAges 40 years+ - NCT02797717Recruiting
Treatment study for classical Hodgkin lymphoma in young people
This trial looks at a treatment approach for children and adolescents with classical Hodgkin lymphoma. It may help by testing how well the treatment controls the cancer and is tolerable in young patients.
Petah TikvaAges 1 month–18 years - NCT04158843Recruiting
Local surgery vs comfort treatment for limited breast cancer spread
This trial compares a more direct local treatment (targeting a small, limited spot) versus a comfort-focused palliative approach for breast cancer that has spread only to one side of the upper arm bone or breastbone area. It aims to see which approach works better while keeping side effects manageable.
Hangzhou, ZhejiangAges 18–75 - NCT04288999RecruitingPhase 3
Surgery plus chemo versus chemo-radiation then surgery for recurrent rectal cancer
This study compares two treatment plans for locally recurrent rectal cancer: (1) surgery plus chemo, or (2) chemo plus radiation first, then surgery, followed by chemo. It aims to see which approach works better in controlling the cancer and helping patients recover.
ChibaAges 20–80 - NCT04453904Recruiting
Testing best added chemo and radiation after stage III uterine cancer
This study compares different ways of giving radiation and chemotherapy after surgery for stage III endometrial (uterine) cancer. It aims to find which approach works best to reduce cancer risk and improve outcomes.
Beijing, Beijing MunicipalityAges Any age
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Common questions
- Are there clinical trials for radiotherapy?
- Yes. Clin2 currently lists 1,308 recruiting radiotherapy 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 radiotherapy 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 radiotherapy 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.