Clinical trials
Cancer clinical trials
Below are recruiting cancer clinical trials, each written for real people, not researchers. We’re tracking 12,871 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04702321Recruiting
Study genetic risks for childhood cancer complications in Switzerland
This study looks at genetic factors to understand why some children who had cancer develop later complications. It uses stored samples and information from a Swiss biobank to help researchers identify higher-risk children.
GenevaAges Up to 21 years - NCT04695782RecruitingPhase 2
Proton radiation for recurrent rectal cancer in the pelvis
This trial studies “pencil beam” proton radiation for rectal cancer that has come back in the pelvis after you already had radiation. It aims to control the recurrence while trying to limit harm to nearby organs.
AarhusAges 18 years+ - NCT04601116RecruitingPhase 3
Atorvastatin for hormone-positive breast cancer to prevent recurrence
This Phase 3 study tests whether taking atorvastatin (a cholesterol-lowering medicine) can improve outcomes for women with estrogen-receptor–positive breast cancer. It may help by affecting cancer-related pathways and reducing risk of recurrence or progression.
AarhusAges 18 years+ - NCT04710797Recruiting
Lymph node surgery for early-stage ovarian cancer
This trial studies whether removing (dissecting) lymph nodes during surgery can improve care for people with early-stage ovarian cancer that still needs chemotherapy. You may be eligible if you have certain ovarian cancer types and your scans and surgery do not show clearly suspicious lymph nodes.
Guangzhou, GuangdongAges 18–70 - NCT04483076RecruitingPhase 3
Chemo before stomach surgery with different cycles
This trial studies whether giving oxaliplatin plus S-1 (SOX) chemotherapy before stomach surgery works best when given for different cycle lengths. It may help shrink stage III gastric cancer before a standard D2 gastrectomy and improve outcomes.
Beijing, Beijing MunicipalityAges 18–70 - NCT04733820RecruitingPhase 3
Extra chemo after surgery for advanced cervical cancer
This Phase 3 trial tests whether adding chemotherapy after surgery helps people with locally advanced cervical cancer, especially when prior treatment didn’t fully match standard guidelines. It looks at whether this “adjuvant” chemotherapy improves outcomes after neoadjuvant chemotherapy and an extensive hysterectomy.
Wuhan, HubeiAges 18–70 - NCT03025477RecruitingPhase 2
Testing two first-treatment options for advanced ovarian cancer
This Phase 2 trial compares two different treatment strategies as the first chemotherapy after surgery for advanced epithelial ovarian, peritoneal, or fallopian-tube cancer. It may help doctors find a more effective or better-tolerated approach for people in your situation.
DijonAges 18–75 - NCT04669873Recruiting
Partial breast radiation vs whole breast radiation after lumpectomy
This trial studies whether treating only part of the breast with radiation works as well as treating the whole breast in people with early breast cancer after lumpectomy. It may help reduce radiation exposure to healthy tissue, while still controlling the cancer.
São Paulo, São PauloAges 50–90 - NCT04750122RecruitingPhase 1/Phase 2
Drug-screening guided treatment before surgery for HER2 breast cancer
This trial tests a treatment plan that is chosen using drug-testing in a lab (to see which medicines may work best) before surgery. It is for people with early-stage HER2-positive breast cancer, aiming to improve outcomes by guiding the right treatment early.
Beijing, Beijing MunicipalityAges 18–75 - NCT04019678Recruiting
Breast cancer study after chemotherapy with small underarm node spread
This study looks at whether it’s safe and effective to avoid removing many underarm lymph nodes in some people who, after chemotherapy, still seem to have only tiny (“micro”) cancer deposits in the sentinel lymph node. It may help reduce treatment side effects while keeping cancer control.
Rozzano, MIAges 18–75 - NCT04878666Recruiting
Breast cancer chest-wall recurrence quality of life with heat treatment
This trial studies how a special heating radiation treatment (“hyperthermia radiotherapy”) affects quality of life in people whose breast cancer has come back in the chest area. It may help show whether this treatment approach is tolerable and beneficial for everyday well-being.
Tübingen, Baden-WurttembergAges 18 years+ - NCT04576143RecruitingPhase 2/Phase 3
Dose-dense chemo before surgery for HER2-negative breast cancer
This trial studies a faster, higher-frequency chemotherapy schedule given before surgery for HER2-negative breast cancer. It aims to see if this approach works better and is safe for the patient’s cancer stage.
Hangzhou, ZhejiangAges 18–70 - NCT04888975Recruiting
Device study for one-arm swelling after lymph surgery
This study tests a medical device (Dayspring Technology) to reduce swelling in the arm caused by breast cancer treatment and lymph surgery. You may be eligible if you have one-sided arm swelling after lymphatic surgery and meet safety checks for the device.
Palo Alto, CaliforniaAges 18 years+ - NCT05032768Recruiting
Study links between skin bacteria and radiation skin reactions
This study looks at how changes in the skin’s normal bacteria (microbiome) relate to getting redness, irritation, or rash after breast radiation. It may help doctors predict who is more likely to have skin side effects after reconstruction and radiation.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT04947280RecruitingPhase 1/Phase 2
Radiation split into small doses for breast cancer bone spread
This trial studies a type of focused radiation given in smaller parts to treat bone metastases from breast cancer. It may help shrink tumors and improve control of pain or growth when standard treatments haven’t worked or surgery isn’t possible.
Shanghai, Shanghai MunicipalityAges Any age - NCT04136782RecruitingPhase 4
Tests two chemo drug combinations for triple-negative breast cancer
This Phase 4 trial compares two chemotherapy combinations to treat stage II–III triple-negative breast cancer. It looks for which regimen works better and is tolerated in people with measurable tumors and good overall health.
Harbin, HeilongjiangAges 18–70 - NCT04137653RecruitingPhase 3
New pre-surgery drug choice for triple-negative breast cancer
This trial tests which chemotherapy drug works better before surgery (neoadjuvant therapy) for triple-negative breast cancer that has spread to underarm lymph nodes. It compares two forms of paclitaxel given by random assignment to see which option may shrink the tumor more effectively and improve outcomes.
Shenyang, LiaoningAges 18–70 - NCT04700332RecruitingPhase 2
Test of PyL PET/CT for high-risk or returning prostate cancer
This Phase 2 study checks how well a scan called PyL PET/CT can help find prostate cancer that is high-risk or has come back by blood test. The goal is to improve how doctors detect spread and guide the next treatment steps.
Irvine, CaliforniaAges 18 years+ - NCT04146077Recruiting
Active monitoring for low-risk prostate cancer
This study tests whether watching low-risk prostate cancer closely (instead of treating right away) is safe. It may help some people avoid early treatments and their side effects while still keeping a close eye on the cancer.
MoscowAges 50–75 - NCT04231006Recruiting
High-dose salvage radiation for prostate cancer that came back locally
This trial studies high-dose radiation (HDR) given after prostate cancer returns only in the prostate/seminal vesicles. It may help by trying to control the cancer when it has not spread elsewhere, using targeted treatment based on MRI and biopsy proof.
Aarhus, Region MidtAges 18 years+ - NCT04022109Recruiting
Check gastric cancer using breath chemical signals
This study looks at chemical signals in your breath to help screen for or understand gastric (stomach) cancer. It may help doctors improve earlier detection, or better sort out who may need further tests.
São PauloAges 18 years+ - NCT04060706Recruiting
Testing new computer tools for radiation treatment planning
This study tests how well new computer methods (called algorithms and machine learning) can support radiation therapy decisions. You might benefit by helping improve how radiation is planned and checked, especially for cancers treated with curative-intent therapy.
Cambridge, CambridgeshireAges 18 years+ - NCT05010863Recruiting
Test and develop a stomach cancer detection kit
This study looks for marker signals from stomach cancer tissue to improve a detection kit. You may be asked to provide tissue samples, especially if you have a new stomach cancer diagnosis and have not had anti-cancer treatment yet.
Wenzhou, ZhejiangAges Any age - NCT05022914Recruiting
PSMA PET/CT scan for PSA relapse after prostate surgery
This trial looks at using a PSMA PET/CT scan to better re-check cancer activity in men whose PSA has started rising after prostate removal. If you qualify, the scan may help doctors choose the next best treatment step.
FlorenceAges 18 years+
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Common questions
- Are there clinical trials for cancer?
- Yes. Clin2 currently lists 12,871 recruiting cancer 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 cancer 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 cancer 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
Beyond the search
We also like to point to nonprofits doing real good in this area. We aren’t affiliated with them — we just admire the work.
- Stand Up To CancerPeople facing cancer across many types, through the research that leads to better treatments.
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.