Clinical trials
Cancer clinical trials
Below are recruiting cancer clinical trials, each written for real people, not researchers. We’re tracking 13,118 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04216732Recruiting
Study of medullary thyroid cancer progression in a registry
This study follows people with medullary thyroid cancer to better understand how the disease changes over time, including in advanced stages. You may help improve future treatment planning and care for people with medullary thyroid cancer.
San Francisco, CaliforniaAges 18 years+ - NCT04215731RecruitingPhase 3
Chemo plus targeted drug before surgery for high-risk rectal cancer
This trial tests giving chemotherapy (mFOLFOXIRI) plus bevacizumab before surgery for rectal cancer that has higher-risk features. It aims to shrink or control the cancer early to improve outcomes after treatment.
Guangzhou, GuangdongAges 18–70 - NCT04221542RecruitingPhase 1
AMG 509 for advanced, hormone-resistant prostate cancer
This trial tests AMG 509, a study drug, in men with metastatic castration-resistant prostate cancer (cancer that keeps growing despite lowering testosterone). It’s for people whose cancer has progressed after certain hormone tablets and possibly chemotherapy, aiming to shrink tumors and control the disease safely.
Duarte, CaliforniaAges 18 years+ - NCT04221464Recruiting
Building a database for peritoneal cancer care
This study collects medical information and small tissue or fluid samples from people with peritoneal (abdominal lining) cancer. It aims to better understand the disease and improve future care plans.
MontpellierAges 18 years+ - NCT04226313Recruiting
Home self-swab tests for people not doing cervical screening
This study looks at whether a home self-sampling swab can help people who haven’t joined cervical cancer screening in the past few years. If you qualify, you’ll be asked to collect a swab yourself so it can be tested, aiming to make screening easier to access.
OlomoucAges 30–65 - NCT04228211Recruiting
Research study for people newly diagnosed with prostate cancer
This study follows people with newly diagnosed prostate cancer to understand care decisions and outcomes over the long term. It uses routine medical information and asks you to complete questionnaires, which may help improve future treatment and support.
Nieuwegein, UtrechtAges 18 years+ - 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+ - NCT04234386Recruiting
Short-course targeted radiation for early breast cancer
This trial tests a radiation plan called GammaPod to treat early breast cancer with precise targeting. It may help patients by delivering the treatment in a more focused way, while checking safety and tumor control in the smallest, well-defined cancers.
Baltimore, MarylandAges 45 years+ - NCT04235764Recruiting
Testing a new bladder-tumor surgery tool for removed tissue
This trial studies a redesigned surgical instrument used during bladder tumor removal, to see if it can improve how the removed tissue samples are collected. It may help future patients by supporting better study of bladder tissue during cancer care.
Bethesda, MarylandAges 18–120 - NCT04243720Recruiting
Study of immune resistance after immunotherapy
This trial studies why some solid cancers stop responding to immune-based drugs (like anti–PD-1/PD-L1) and what can be done next. You may be eligible if your cancer has progressed after immunotherapy and you can safely undergo a tumor needle biopsy.
Toronto, OntarioAges 18 years+ - NCT04245683Recruiting
Testing non-surgical treatment for newly diagnosed rectal cancer
This study looks at whether it’s practical and safe to treat certain rectal cancers without surgery. You may be offered non-surgical (“neoadjuvant”) treatment and close follow-up to see how well it works in a rural setting.
Cooperstown, New YorkAges 18 years+ - NCT04249154RecruitingPhase 2
After prostate surgery, test radiation plus hormone shots
This trial studies whether giving a shorter-course radiation plan after prostate surgery, along with hormone shots (LHRH), can improve outcomes for people with higher-risk prostate cancer. You may be eligible if your PSA (a blood marker) is either still low but high-risk by pathology, or it has started to rise again after surgery.
Montreal, QuebecAges 18 years+ - NCT04261244RecruitingPhase 3
Neoadjuvant radiation study for one-sided breast cancer
This Phase 3 study tests a specific plan that combines chemotherapy (and sometimes targeted medicines) with radiation before surgery for one breast. It may help shrink breast cancer and improve treatment timing, based on how well tumors respond.
AhausAges 18 years+ - NCT04263298RecruitingPhase 3
Fulvestrant or capecitabine after chemo for metastatic breast cancer
This Phase 3 trial compares two medicines—fulvestrant versus capecitabine—as “maintenance” treatment after your first chemo helps control metastatic breast cancer. It aims to see which one helps people live longer with better disease control.
Guangzhou, GuangdongAges 18–75 - NCT04265937Recruiting
Genetic screening for breast cancer risk in Chinese communities
This study checks certain genes using blood or mouth (oral) samples in people who already have breast cancer. The goal is to better understand genetic risk in Chinese communities and help guide future care.
Shanghai, Shanghai MunicipalityAges Any age - NCT04271579Recruiting
Surgery for early prostate cancer spread seen on PSMA PET
This trial studies whether operating on a small, one-sided (unilateral) area of prostate cancer spread in the pelvic lymph nodes—found on a PSMA PET scan—can help control recurrence. It’s meant for people whose PSA is still low and whose spread appears limited on the scan.
HamburgAges 18–75 - NCT04275557Recruiting
Using scan and blood data to judge pancreatic cyst risk
This study looks at how medical images and lab samples can predict which pancreatic cysts or tumors are more likely to be dangerous. If you are being evaluated for a pancreatic problem and haven’t started pancreas treatment, your scans and samples may help researchers improve risk prediction.
Lakewood Rch, FloridaAges 18 years+ - NCT04278222RecruitingPhase 2
Anlotinib plus immunotherapy for advanced stomach cancer
This Phase 2 study tests whether combining two medicines—anlotinib and toripalimab—can work well as first treatment for advanced (stage IV) stomach cancer. It’s meant for people who have an adequate overall health status and certain blood/organ function levels.
ShanghaiAges 18 years+ - NCT04280822RecruitingPhase 3
Immunotherapy plus chemo versus chemo alone before surgery
This Phase 3 trial tests whether adding immunotherapy to chemotherapy before surgery works better than chemotherapy alone for resectable esophageal cancer. The goal is to improve outcomes after tumor shrinkage before the operation.
Zhengzhou, HenanAges 18–75 - NCT04282122Recruiting
Personalized radiation plan for older women with early breast cancer
This trial uses individual measures of how sensitive your body’s tissues are to radiation to guide after-surgery breast radiation treatment. It aims to keep treatment safe and effective while tailoring the plan to each person.
Montpellier, OccAges 65 years+ - NCT04284189Recruiting
Aftercare study for survivors of childhood cancer in Switzerland
This study looks at follow-up care needs for people who survived childhood cancer, especially those in the later teen/adult years. You may be invited to complete questionnaires so the study team can understand and improve long-term aftercare.
AarauAges 16 years+ - NCT04287088Recruiting
MRI plus shared decisions to help diagnose prostate cancer
This study looks at using a special prostate MRI (bpMRI) along with a risk-based shared decision process to guide diagnosis. It may help patients and clinicians decide on next steps using MRI results and individual risk.
JyväskyläAges 18 years+ - NCT04289935Recruiting
Vacuum biopsy before surgery to check treatment response
This trial studies a special vacuum-assisted biopsy taken just before breast surgery to see how well pre-surgery (neoadjuvant) chemotherapy worked. It may help doctors understand whether patients truly had a complete or near-complete response on scans, which can guide next steps.
SalzburgAges 18 years+ - NCT04295863RecruitingPhase 1
Test different dosing schedules for two immunotherapy drugs
This early trial compares how often two immune system medicines—nivolumab and pembrolizumab—are given for advanced or metastatic cancers. It aims to see which dosing interval is workable and safe for people needing treatment.
Chicago, IllinoisAges 18 years+
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Common questions
- Are there clinical trials for cancer?
- Yes. Clin2 currently lists 13,118 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.