Clinical trials
Questionnaire clinical trials
Below are recruiting questionnaire clinical trials, each written for real people, not researchers. We’re tracking 1,164 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05108948Recruiting
Study factors linked to better quality of life after spine surgery
This study looks at what helps adults with spinal deformity have a better quality of life one year after surgery. It may help doctors understand which patients benefit most and how to improve follow-up care.
BrugesAges 18 years+ - NCT05147597Recruiting
Study tests a Turkish questionnaire for lung scarring
This study checks whether a Turkish version of a symptom questionnaire works reliably for people with idiopathic pulmonary fibrosis. It may help clinics better understand symptoms and track changes over time.
Istanbul, ÜsküdarAges 18 years+ - NCT05595499RecruitingPhase 2
Fisetin for better walking and strength in breast cancer survivors
This study tests whether fisetin (a natural compound) can improve physical function, like walking ability, in breast cancer survivors who feel frail. It may help strengthen muscles and improve daily activity after treatment.
Alhambra, CaliforniaAges Any age - NCT04874220Recruiting
Brain study of real-world navigation in people with RNS
This study looks at how the brain works while people navigate in everyday life. It includes people who already have an RNS device placed in their brain and helps researchers understand the brain activity tied to spatial navigation.
Los Angeles, CaliforniaAges 12–70 - NCT05457569Recruiting
Parent support program for babies at high brain risk
This study checks whether a coordinated parent support program delivered after NICU (and after discharge) is practical and helpful. It gathers feedback through interviews with parents and professionals to improve how care and parenting support are organized.
DijonAges 18 years+ - NCT03966612Recruiting
Monitoring people with MEN1 and related hormone gland tumors
This study follows people who have Multiple Endocrine Neoplasia type 1 (MEN1), a genetic condition that can cause tumors in hormone glands. It aims to monitor symptoms and lesions over time to better understand how the condition progresses and how to manage it.
DijonAges Any age - NCT03493425RecruitingPhase 2
Nasal or sinus cancer treated with or without chemotherapy first
This trial studies whether giving chemotherapy before surgery and radiation (instead of doing surgery and radiation first) improves outcomes for people with certain nasal or paranasal sinus cancers that can be removed with an operation. You may qualify if your tumor needs more advanced removal, such as part of the eye area or the skull base.
Tucson, ArizonaAges 18 years+ - NCT05521698RecruitingPhase 1
Bicalutamide study for early bladder cancer in men
This trial tests whether bicalutamide can help men with non-muscle invasive bladder cancer (an early form that hasn’t spread into muscle). It is a Phase 1 study, meaning the main goal is to see how safe it is and learn how it behaves in the body for this cancer type.
Tucson, ArizonaAges 18 years+ - NCT05089162Recruiting
Testing a heart ultrasound approach in chronic heart failure
This study looks at people with chronic heart failure with weaker pumping function and checks how well a lung/heart ultrasound can assess congestion (fluid buildup). If you qualify, you may help test a better way to evaluate your condition during a planned hospital visit.
Vandœuvre-lès-NancyAges 18 years+ - NCT04786587Recruiting
Study of alcohol reporting during pregnancy
This study looks at how alcohol use is reported during pregnancy. It may help improve how pregnant people share this information during prenatal care.
LilleAges 18 years+ - NCT05121051RecruitingPhase 2
Broccoli sprout extract to reduce tobacco cancer-causing chemicals
This Phase 2 study tests whether broccoli sprout extract (Avmacol ES) can reduce cancer-causing substances linked to heavy smoking. It’s for adults who smoke heavily and may help lower harmful tobacco-related chemical effects in the body.
Tucson, ArizonaAges 18 years+ - NCT04604509RecruitingPhase 4
Smoking quit plan using counseling and nicotine-free medicines
This trial tests whether a quit program that combines counseling with medicines (nicotine replacement, varenicline, or bupropion) helps people stop or cut down smoking. It’s also delivered through telehealth, with repeated check-ins to see how well the plan works and whether it’s safe for you.
Houston, TexasAges 18 years+ - NCT03801876RecruitingPhase 3
Proton versus photon radiation for esophageal cancer
This trial compares proton therapy and standard photon (X-ray) radiation for treating esophageal cancer. It looks to see which approach works better and is safer for people who need chemoradiation.
Phoenix, ArizonaAges 18 years+ - NCT04343430Recruiting
Hospital study for fluid buildup in heart failure with preserved heart function
This study looks at how well doctors can assess fluid buildup before you leave the hospital if you have a type of heart failure called “preserved ejection fraction.” It may help improve decisions about when and how safely people are discharged.
Vandœuvre-lès-NancyAges 18 years+ - NCT04496024Recruiting
How ofloxacin levels may affect older adults with bone infections
This study looks at whether blood levels of the antibiotic ofloxacin in people over 65 are linked to side effects, in older adults hospitalized for bone and joint infections. It may help doctors choose safer doses, especially when switching from IV treatment to pills.
AmiensAges 65 years+ - NCT04120714Recruiting
tDCS brain stimulation for problematic internet gaming use
This trial tests whether a noninvasive brain stimulation method (tDCS) can help teens or adults reduce problematic internet gaming. It’s designed for people who meet diagnostic criteria for “pathological use of internet gaming.”
DijonAges 12 years+ - NCT04049890Recruiting
Questionnaire study for families managing a child’s chronic illness
This study asks families to fill out and review a questionnaire about how you are coping at home when a child has a long-term (chronic) health condition. It may help create a better tool to understand family adjustment during ongoing hospital treatment.
Florence, FirenzeAges Any age - NCT04343443Recruiting
Test whether a lung ultrasound helps discharge planning after heart failure
This study looks at people hospitalized for worsening heart failure with weaker pumping (reduced ejection fraction). It tests whether a lung ultrasound evaluation near discharge can improve how doctors decide it is safe to send you home.
Vandœuvre-lès-NancyAges 18 years+ - NCT03918421Recruiting
IgM-MAG neuropathy study using immunoglobulin M treatment
This study looks at a treatment made from immune proteins (immunoglobulin M) to treat neuropathy caused by anti-MAG antibodies. It may help improve nerve symptoms in people with this specific type of nerve condition.
BronAges 18 years+ - NCT04166409RecruitingPhase 3
Selumetinib versus chemo for low-grade brain tumor in children
This trial studies whether the targeted drug selumetinib works better than standard chemotherapy (carboplatin and vincristine) for children and young adults with a specific type of low-grade glioma (grade 1 or 2). It may help shrink tumors and slow growth while comparing side effects between the two treatment approaches.
Birmingham, AlabamaAges 2–21 - NCT03396341Recruiting
Surveys after genetic risk results for certain breast cancer genes
This study asks women to complete surveys after learning their genetic risk results for certain breast cancer–related gene changes. It helps researchers understand how people respond and what they think or feel after getting these results.
Boston, MassachusettsAges 25 years+ - NCT02924818Recruiting
Research study for adults with long-term breathing lung diseases
This study enrolls adults with chronic lung conditions like COPD, cystic fibrosis, bronchiectasis, or interstitial lung disease. It’s designed to learn more about these illnesses and to develop better ways to study or improve care.
ReimsAges 18 years+ - NCT03299179Recruiting
Female hormones and brain blood flow during MRI
This study checks how female hormones may change blood flow in the brain. You may be asked to undergo an MRI scan while hormone levels are assessed.
GhentAges 18–25 - NCT02863172Recruiting
Genetic studies in families with inherited colon cancer
This study looks at genetic reasons some families get colon cancer due to inherited (run-in-the-family) syndromes. It may help doctors better understand risk and tailor care for you or your relatives.
Houston, TexasAges 18 years+
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Common questions
- Are there clinical trials for questionnaire?
- Yes. Clin2 currently lists 1,164 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.