Clinical trials
Questionnaire clinical trials
Below are recruiting questionnaire clinical trials, each written for real people, not researchers. We’re tracking 1,163 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04472338Recruiting
Prostate cancer screening for people with higher genetic risk
This study looks at prostate cancer screening for people who may be at higher risk because of a specific inherited (genetic) change. It may help your care team find the best screening approach to catch aggressive prostate cancer earlier.
Duarte, CaliforniaAges 40 years+ - NCT04483206RecruitingPhase 1
Personalized stem cell transplant for multiple myeloma
This Phase 1 study tests a personalized (tailored) autologous stem cell transplant for people with multiple myeloma or related plasma cell diseases. The goal is to see how safe it is and how well it works, using your own stem cells.
Atlanta, GeorgiaAges 18 years+ - NCT04489238Recruiting
Study of young and average-age colorectal cancer causes
This research collects health information (and for some groups, stool samples) to better understand why colorectal cancer happens in different age groups. If you fit the age and diagnosis criteria, your participation could help researchers find patterns that may improve future care.
Basking Ridge, New JerseyAges 18 years+ - NCT04489199Recruiting
Join the Dijon stroke patient registry study
This study follows people who are already in the Dijon Stroke Registry and asks if they agree to participate. If you say yes, your information may be used to better understand stroke outcomes and care.
DijonAges 18 years+ - NCT04499326Recruiting
Improve quality-of-life reporting after defibrillator heart ablation
This study looks at how to better track patients’ quality of life (how you feel and function) after catheter ablation for a dangerous heart rhythm, using questionnaires you complete. It may help the care team understand how to measure patient outcomes more accurately after treatment.
LondonAges 18 years+ - NCT04506008RecruitingPhase 2
Radiation followed by surgery for soft tissue sarcoma
This trial tests a treatment plan where you first get a shorter (hypofractionated) course of radiation and then have surgery to remove the tumor. It may help control the cancer locally in certain soft tissue sarcomas and improve surgical outcomes.
Nashville, TennesseeAges 18 years+ - NCT04526743Recruiting
Eating habits and weight changes after weight-loss surgery
This study looks at how eating behaviors change over time after bariatric (weight-loss) surgery. It may help researchers understand why some people lose more weight than others and how to improve support after surgery.
BarcelonaAges 18–70 - NCT04527315Recruiting
COVID-19 survivors health registry and follow-up scans
This study enrolls adults who had COVID-19 to track longer-term health effects and match them with people who did not have COVID-19. Depending on eligibility, you may be asked to complete questionnaires and possibly have MRI or X-ray scans.
New York, New YorkAges 18 years+ - NCT04528446Recruiting
Study bone strength in people with kidney filtering disorders
This study looks at how kidney filtering problems (glomerular disorders) may affect bone quality and strength. It may help researchers understand who is at higher risk for weak bones and fractures and why.
New York, New YorkAges 5–55 - NCT04537936Recruiting
Spanish psychotherapy support for Latino adults with advanced cancer
This study tests a Spanish-language psychotherapy approach to help Latino adults with stage III or IV solid tumors (advanced cancer). It aims to see how well the therapy reduces distress and how patients and clinicians feel about it.
New York, New YorkAges 18 years+ - NCT04543799Recruiting
Sleep quality study in prostate and early breast cancer patients
This trial studies how sleep quality changes while people with prostate cancer or early breast cancer receive standard treatments. It may help doctors understand which treatment factors affect sleep and identify who might benefit from support for sleep problems.
BellinzonaAges 18 years+ - NCT04575935RecruitingPhase 3
Minimally invasive surgery after chemotherapy for advanced ovarian cancer
This trial studies whether doing surgery using smaller incisions after chemotherapy works as well as a more traditional approach for certain people with stage IIIC–IV ovarian, fallopian tube, or primary peritoneal cancer. It may help reduce surgical trauma while aiming for effective tumor removal.
Miami, FloridaAges 18 years+ - NCT04595422Recruiting
Train quitline staff to reach smokers about lung screening
This trial tests an educational approach delivered through tobacco quitlines to encourage eligible smokers to learn about lung cancer screening. It may help people who have a heavy smoking history get the right information and next steps.
Houston, TexasAges 18 years+ - NCT04608968Recruiting
Kids’ comfort questionnaire during planned surgery
This study asks children to complete a short satisfaction questionnaire while they are having planned surgery under general anesthesia. It aims to learn how kids feel about the perioperative (before, during, and after surgery) experience, which could help improve comfort and care for future patients.
Montpellier, MontpellierAges 7–17 - NCT04623931RecruitingPhase 2
Chemo and radiation for IDH-wildtype glioma
This Phase 2 study tests a combination of chemotherapy and radiation after surgery for certain brain tumors that are “IDH wildtype.” It aims to control the tumor and improve outcomes for people with specific types of glioma or glioblastoma.
Houston, TexasAges 18 years+ - NCT04638452Recruiting
Study of reactions during routine blood tests in autism
This study looks at how people with autism (and some without autism) react during a routine blood test. Researchers will watch and measure behavior and body responses to better understand distress and comfort during needle procedures.
BordeauxAges 6–65 - NCT04639388Recruiting
Learning about psychosis in children with 22q11.2 deletion syndrome
This study looks at how “psychotic disorders” (like unusual beliefs, hallucinations, or thought changes) show up in children with 22q11.2 deletion syndrome. It mainly focuses on understanding the condition and may help improve care in the future.
Lyon, Auvergne-Rhône-AlpesAges 4–13 - NCT04655066Recruiting
Questionnaire study for pelvic floor symptoms during cancer treatment
This study asks people with breast or gynecologic cancer who are receiving cancer treatment to complete a validated questionnaire about how their pelvic floor feels. The goal is to better understand pelvic floor function and symptoms during systemic (whole-body) cancer therapy, which may help future care.
WiesbadenAges 18 years+ - NCT04670874Recruiting
Quality of life in people with cutaneous lymphoma
This study asks people with cutaneous lymphoma to fill out a questionnaire about quality of life. The goal is to better understand how this illness affects day-to-day life and comfort.
Duarte, CaliforniaAges 18 years+ - NCT04684368RecruitingPhase 2
New treatment study for children and young adults with NGGCT brain tumors
This Phase 2 study tests a new treatment approach for certain brain tumors called NGGCT in children and young adults. It may help improve outcomes by targeting tumors in specific brain locations and using tumor marker tests to guide care.
Birmingham, AlabamaAges 3–29 - NCT04685356Recruiting
Testing IBAIP for brain development in very preterm babies
This study looks at whether the IBAIP program can improve neurodevelopment (how the brain grows and works) in babies born very early. Babies are included only if they have a normal early neurological exam after being “corrected for prematurity.”
AngersAges 6 months–7 months - NCT04706754Recruiting
Study of lung cancer information across Canada
This observational study collects information from adults with lung cancer to better understand the disease over time. If you join, it helps researchers learn from real-world experiences rather than testing a new drug.
Brampton, OntarioAges 18 years+ - NCT04723498Recruiting
Internet use study for children and teens
This study looks at how problematic (hard-to-control) internet use shows up in children and teens. It may help clinicians understand the patterns of use and improve support for young people and families.
Zurich, Canton of ZurichAges 8–18 - NCT04732273Recruiting
Study tracking long-term health after childhood cancer
This study follows people in Switzerland who finished treatment for childhood or teen cancer to learn about their long-term health. It may help doctors better understand late effects and follow-up needs after cancer treatment.
BaselAges Any age
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Common questions
- Are there clinical trials for questionnaire?
- Yes. Clin2 currently lists 1,163 recruiting questionnaire 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 questionnaire 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 questionnaire 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.