Condition
Radiation Therapy clinical trials and research
As of November 12, 2026, Find a Trial lists 20 Radiation Therapy clinical trials that are recruiting, at sites in 8 countries (most in United States (7), China (6), Canada (2)). By phase: Phase 2 (4), Phase 3 (2), Early Phase 1 (1). There are also 79 NIH-funded research projects on Radiation Therapy, with $42.4 million in listed awards. Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 20Clinical trials
- 79NIH research projects
- 8Countries
Newest Radiation Therapy clinical trials
All recruiting trials (20)
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FAPI-guided radiotherapy with cadonilimab plus chemo for colorectal cancer limited to the peritoneum
Aims to see if adding targeted radiotherapy and cadonilimab immunotherapy to standard second-line chemotherapy helps adults with colorectal cancer that’s spread only to the peritoneum.
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Pelvic ultra-hypofractionated radiotherapy after surgery for high-risk endometrial cancer
This trial tests whether giving 27.5 Gy in five sessions of pelvic radiotherapy after surgery is safe and feasible for high-risk endometrial cancer patients.
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Radiation-related heart damage in locally advanced NSCLC tested with PET-CT
This study tests whether PET-CT imaging with 18F-Flurpiridaz can detect early radiation-related heart damage in adults with locally advanced non-small cell lung cancer receiving standard chemoradiation.
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Seeing what cancer patients eat during radiation treatment using a mobile food diary
This study tests whether patients undergoing radiation therapy can consistently use a mobile food diary app to log their daily meals.
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CAIX PET/CT–guided radiation for clear cell kidney cancer
This trial will try using CAIX-targeted PET/CT scans plus FDG PET/CT to guide focused stereotactic radiation alongside standard targeted therapy and anti‑PD‑1 immunotherapy for adults with recurrent or metastatic clear cell kidney cancer.
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Radiation therapy options compared for newly diagnosed gynecologic cancers
This study tests whether proton therapy works as well as conventional photon therapy for endometrial and cervical cancers.
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Virtual reality to reduce anxiety during radiation therapy
This study will try using VR during radiation sessions to see if it reduces anxiety for adults receiving radiation for prostate, breast, lung, or head and neck cancer.
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Node-sparing low-dose radiotherapy combined with chemotherapy and PD-1 blocker for high-risk pMMR/MSS locally advanced colon cancer.
This trial tests whether adding node-sparing low-dose radiotherapy to standard chemotherapy and a PD-1 blocker can improve tumor response in adults with high-risk, locally advanced pMMR/MSS colon cancer before surgery.
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Combining radiation therapy with targeted and immunotherapy for advanced kidney cancer
This study is testing a new treatment that combines radiation therapy with two other medications to see if it helps people with advanced kidney cancer live longer without their disease getting worse.
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Adjuvant chemotherapy for high-grade prostate cancer
This study is testing if adding chemotherapy to standard treatment after radiation can help men with high-grade prostate cancer live longer without their cancer coming back.
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Combining targeted therapy and immunotherapy with radiation for advanced kidney cancer
This study is testing if combining targeted therapy and immunotherapy with a specific type of radiation can help people with advanced kidney cancer live longer without their disease getting worse.
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Cooling device to preserve taste during radiation for head and neck cancer
This study is testing a cooling device to see if it can help people with advanced throat cancer keep their sense of taste while they undergo radiation and chemotherapy.
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AI-assisted contouring for breast cancer radiation treatment
This study is testing if using AI to help outline areas for radiation treatment in breast cancer patients is just as good and faster than having doctors do it by hand.
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New imaging methods for detecting brain tumors in patients with metastasis
This study is testing new imaging techniques to see if they can better detect brain tumors in patients who have cancer that has spread to the brain.
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Evaluating a new device for vaginal dilation after pelvic radiation therapy
This study is testing a new device that helps women who have had pelvic radiation therapy to safely and comfortably manage vaginal dilation and see if it improves their quality of life and reduces pelvic pain.
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Radiation therapy for bone metastases using fewer treatment sessions
This study is testing if giving radiation therapy for bone metastases in three sessions instead of five can still help reduce pain for patients.
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Combining vertebroplasty with radiation therapy for spine metastases pain relief
This study is testing whether combining a procedure to strengthen the spine with radiation therapy can help people with spine cancer feel less pain and lower their chances of fractures.
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Stereotactic body radiotherapy for hormone-sensitive prostate cancer with few metastases
This study is testing whether a special type of targeted radiation therapy combined with standard treatment can help men with hormone-sensitive prostate cancer that has spread to a few places live longer and feel better.
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Evaluating quality of life after treatment for rectal cancer
This study looks at how treatment for rectal cancer affects the quality of life for patients who receive radiation or chemotherapy before surgery.
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Using MRI to improve radiation therapy planning and response assessment
This study is testing new MRI and CT imaging techniques to see if they can help cancer patients get better radiation therapy and understand how well their treatment is working.
NIH-funded research (newest 40 of 79)
Early-stage science funded by the US National Institutes of Health. Most of these projects don't enroll patients, but they show what is being worked on.
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Protecting small blood vessels from radiation by boosting mitochondrial health
It aims to prevent radiation-related damage to tiny blood vessels and reduce later thinking and memory problems in people who get radiation therapy by protecting cell mitochondria.
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Proton SBRT for refractory ventricular tachycardia with real-time 3D/4D imaging
A patient-facing study exploring a proton-based, noninvasive radiation therapy to treat stubborn VT using advanced 3D and 4D imaging to target the heart safely.
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Embedding symptom support in radiation therapy for prostate cancer
A multi-site study tests whether delivering mindfulness-based symptom support right inside radiation therapy is feasible and acceptable for men with prostate cancer.
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Targeting SREBP2 to boost radiation therapy in HPV-negative head and neck cancer
This grant aims to see if blocking SREBP2 can make radiation therapy work better for people with HPV-negative Head and Neck Squamous Cell Carcinoma.
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Genetic and Immune Factors in Squaring the Room: Sacituzumab plus Radiation for Bladder Cancer
A study aims to understand why combining sacituzumab with radiation helps some bladder cancer patients more than others, with the goal of making bladder-sparing therapy more effective.
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CivaDerm: a new four-day skin cancer radiation bandage
A new four‑day radiation bandage for non-melanoma skin cancer aims to treat facial and other areas without multiple clinic visits or big scars.
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Using mitochondria to protect the brain’s small vessels during radiation cancer therapy
Aims to find ways to protect brain blood vessels from damage caused by radiation therapy used for cancer, so veterans and others can keep cognition and brain health.
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PET marker to map brain synapses after radiation therapy
A new PET imaging test uses a special tracer to watch how synapses in the brain change after radiation therapy, aiming to understand and protect cognitive function in people affected by CNS tumors.
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Surgery versus focused stereotactic radiation for early-stage lung cancer
This project compares surgery and focused stereotactic radiation (SBRT) for people with stage I non-small cell lung cancer to learn which approach best balances cure, side effects, and recovery.
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A smarter radiomics tool to predict lymph node cancer spread for targeted neck cancer radiation
A new radiomics model uses imaging data to predict which cervical lymph nodes are cancerous so doctors can tailor radiation therapy for head and neck cancer.
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Targeting ATM to Make Radiation More Effective in Brain Stem Glioma
A specialized program at Duke University aims to help people with brainstem glioma improve how well radiation works by turning off a key DNA damage sensor called ATM.
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Personalized radiation targeting for glioblastoma using brain pathway maps and tumor biomarkers
This project combines special MRI brain pathway images and tumor molecular markers to create more personalized radiation targets for people with glioblastoma.
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Targeting tumor survival signals to improve radiation response in pancreatic cancer
This grant tests a new approach to make pancreatic cancer tumors more sensitive to radiation, aiming to help patients with locally advanced disease become eligible for surgery or experience better disease control.
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Improve brain tumor radiation planning with high-resolution MR spectroscopy
Aims to use advanced MR spectroscopy imaging to more precisely target glioma tumors during radiation therapy.
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A MRI-based method to track tumor oxygen levels during radiation therapy
Researchers are testing MRI-based ways to monitor oxygen in tumors during radiation treatment to tailor doses and improve outcomes for cancer patients.
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Planning safer electron FLASH radiation treatments
This project builds computer tools to help doctors plan electron FLASH radiation that may better protect healthy tissue for people needing high‑dose radiotherapy.
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Real-time, in-vivo dosimetry for safe FLASH radiation therapy in breast cancer
A real-time, safety-focused monitoring system using ultra-fast detectors to protect patients during FLASH radiation therapy for breast cancer.
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Whole-brain metabolic MRI to guide brain tumor radiation
This project uses a special whole-brain MRI that maps tumor chemistry to help doctors target radiation more precisely for adults with brain tumors.
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AI tools to improve checks of radiation therapy plans
Using artificial intelligence to speed up and strengthen safety checks of radiation treatment plans for people getting external beam radiotherapy.
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Exploring a new way to deliver radiation therapy that minimizes damage to healthy tissues.
This study is exploring a new type of radiation therapy called FLASH radiotherapy, which gives a quick burst of high radiation to help treat tumors while causing less harm to healthy tissues, with the hope of making cancer treatments safer and more effective for patients like you.
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Targeted Internal Radiation and Immune Therapy for Non-Muscle-Invasive Bladder Cancer
Aims to help people with early bladder cancer that doesn’t respond to current therapy by using a novel intravesical treatment that combines targeted radiation, immune checkpoint inhibitors, and oncolytic virus to trigger a strong anti-cancer response.
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Radiation therapy and lung health: how radiation affects airways, blood vessels, and breathing
This grant looks at how radiation therapy for non-small cell lung cancer can affect the lungs’ airways and blood vessels and what that means for breathing and lung function.
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Blocking NRF2 to help radiation work better for head and neck cancer
Trying drugs that block a protein called NRF2 to help radiation therapy work better for people with head and neck squamous cell carcinoma.
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Predicting radiation-related heart damage with patient stem cells
Using stem cells made from people who had cancer, researchers seek to understand why some patients' hearts are harmed by radiation and to find existing drugs that might protect them.
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Developing a new detector system for ultra-rapid radiation therapy
This study is working on a new type of detector to help doctors measure a fast radiation treatment called FLASH therapy, which aims to treat tumors while protecting healthy tissue, making radiation therapy safer and more effective for patients.
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Personalized scheduling for radiation therapy in head and neck cancer
This study is looking at how to make radiation therapy better for people with head and neck cancers by creating personalized treatment plans that adjust based on how the tumor changes during treatment, helping to reduce side effects and improve results.
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Personalized treatment planning for head and neck cancer radiation therapy
This study is working to make radiation therapy better for people with head and neck cancers by creating personalized treatment plans that adjust to changes in their bodies during treatment, helping to reduce side effects and protect healthy tissues.
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Olaparib and durvalumab with radiation after first-line chemotherapy for locally advanced pancreatic cancer
This trial tests whether adding the oral drug olaparib and the immunotherapy durvalumab to radiation can help people with locally advanced, unresectable pancreatic cancer after first-line chemotherapy.
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Personalizing proton versus conventional (photon) radiation using each patient's clinical and biological information
This project will use patients' clinical details and biological markers to choose whether proton or standard X‑ray (photon) radiation is likely to work best with fewer side effects.
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Imaging synapse loss after brain radiation
Using a new PET scan tracer to look for synapse changes after brain radiation therapy for people treated for central nervous system tumors.
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Clearer cone‑beam CT images for better visualization during radiation treatment
This project tries a new two‑dimensional anti‑scatter grid to make cone‑beam CT scans clearer for people having radiation therapy for cancer.
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Real-time imaging of radiation dose inside the body
This project will use tiny sound waves made by X‑rays to image and track the radiation dose delivered to people getting radiation therapy for cancer.
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Improving radiation for cervical cancer by targeting glutamine use
This project aims to see whether blocking cancer cells' use of glutamine helps radiation control cervical cancer better.
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How genetics and the immune system affect sacituzumab plus radiation for bladder cancer
This work looks at whether adding the antibody-drug sacituzumab to radiation helps people with muscle-invasive bladder cancer and which genetic or immune factors change that response.
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Better Radiation Therapy for Brain Tumors Using Advanced Imaging
This work aims to make radiation therapy for brain tumors more precise by using a special type of MRI to see tumor boundaries more clearly.
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Better Radiation Planning for Head and Neck Cancer
This work aims to use advanced imaging to accurately find cancer in lymph nodes for people with head and neck cancer, helping doctors target radiation more precisely.
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Protecting tiny blood vessels from radiation by supporting mitochondria
Researchers are looking for ways to protect small blood vessels and brain function in people who get radiation therapy by helping cells' mitochondria work better.
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Advanced MRI to Track Prostate Cancer Treatment
This research explores a new type of MRI scan to see how prostate cancer responds to radiation therapy.
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Better MRI for prostate cancer radiation treatment
This project aims to create a new MRI tool to precisely locate prostate cancer tumors, helping doctors target radiation therapy more effectively.
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Understanding NF-kB to Improve Radiation Treatment for Cancer
This research explores a new way to make radiation therapy more effective for cancer patients by focusing on how the body's immune system responds to treatment.
Related topics
Quick answers
How many Radiation Therapy clinical trials are recruiting right now?
20, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 8 countries. The most sites are in United States (7 trials), China (6 trials), Canada (2 trials), Sweden (1 trial), Germany (1 trial). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 2: 4, Phase 3: 2, Early Phase 1: 1. 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.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.