Clinical trials
Questionnaire clinical trials
Below are recruiting questionnaire clinical trials, each written for real people, not researchers. We’re tracking 1,134 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05977712Recruiting
Circadian rhythm factors in people with memory clinic concerns
This study looks at how daily body-clock timing (circadian rhythm) and other factors may relate to memory and thinking symptoms in memory clinic patients. You may be asked to wear a small device for about 9 days to track your daily patterns.
Paris, FranceAges 18 years+ - NCT05995171Recruiting
Long-term health in teens born with esophageal atresia
This study looks at teenagers born with esophageal atresia (a birth defect where the esophagus doesn't connect to the stomach) to see how they are doing in the long term. It uses special tests to understand health patterns and may help improve care for others with this condition.
Lille, NordAges 13–14 - NCT05586334Recruiting
Test a device to help predict preterm birth risk
This trial tests an innovative device that measures risk of preterm birth in pregnant people who come to the emergency room early in pregnancy with signs that labor might start. It may help doctors identify who needs closer monitoring or treatment sooner.
ColombesAges 18 years+ - NCT05695963Recruiting
Daily phone check-ins for restless legs symptoms
This study uses frequent, brief check-ins (often by phone) to better understand restless legs syndrome symptoms in daily life. It may help researchers learn patterns of symptoms that could improve future care plans.
BordeauxAges 18–70 - NCT05969457RecruitingPhase 3
Local pain-numbing injection before surgery for hysterectomy
This Phase 3 study tests whether a preventive numbing medicine injection before a vaginal hysterectomy (using the vNOTES approach) can reduce pain afterward. It may help with comfort and recovery after surgery for non-cancer reasons.
Le HavreAges 18–70 - NCT05946213RecruitingPhase 3
Shorter radiation treatment for high-risk prostate cancer
This trial tests whether a shorter course of radiation works as well as the usual longer course for people with high-risk prostate cancer. The goal is to keep cancer control while possibly reducing treatment time and inconvenience.
Birmingham, AlabamaAges 18 years+ - NCT05969860RecruitingPhase 2
Home cancer treatment vs clinic treatment for advanced cancer
This Phase 2 trial compares giving certain standard cancer infusions at home versus in a clinic. It may help people avoid clinic visits while still receiving the same cancer treatment safely.
Jacksonville, FloridaAges 18 years+ - NCT05267041Recruiting
Lung cancer database study at Lyon hospitals
This study collects information about people who have been treated for lung or chest cancers at Lyon University Hospital. Your data may help researchers better understand these cancers and improve future care.
Pierre-BéniteAges 18 years+ - NCT05835973Recruiting
Study of sleep changes in people with inflammatory bowel disease
This study looks at how sleep patterns change in adults with inflammatory bowel disease (IBD) who are currently in remission. It may help researchers understand sleep issues in IBD and identify ways to improve care during symptom-free periods.
Clermont-FerrandAges 18–65 - NCT05941520RecruitingPhase 2
Acolbifene vs low-dose tamoxifen to prevent breast cancer
This Phase 2 trial compares acolbifene and low-dose tamoxifen to see which better lowers breast cancer risk in premenopausal women at high risk. You would be followed with health visits, blood tests, and a breast tissue sampling procedure.
Duarte, CaliforniaAges 35 years+ - NCT05924295Recruiting
Study how ketone changes in the body with diet and fasting
This study looks at how your body processes “ketones,” which are energy molecules that rise with fasting or low carbohydrate intake. You may be asked to follow strict diet and activity rules before test days so researchers can see what affects ketone metabolism.
Novato, CaliforniaAges 20–70 - NCT05924425RecruitingPhase 4
Daridorexant for insomnia in early memory decline
This trial tests whether daridorexant can improve sleep in people who have mild cognitive impairment or early Alzheimer’s disease and struggle with insomnia. It may help by improving how long and how well you sleep, with monitoring of sleep patterns and memory-related measures.
MontpellierAges 60–85 - NCT05885048Recruiting
Testing how cancer treatments affect future fertility
This study looks at how treatments that can harm ovaries or testicles (like certain chemotherapy, radiation, and immune therapies) may affect fertility. It may help you and others by measuring hormone levels (and in some cases sperm) before and during/after treatment.
BernAges 14–50 - NCT05888961Recruiting
Study of taste changes in people with memory problems
This study tracks how taste perception works in people with different stages of memory and thinking problems, including mild to moderate Alzheimer-type conditions. It uses non-painful taste testing and brain-wave measurements to understand changes over time and may help improve how these conditions are assessed.
DijonAges 18 years+ - NCT05885971Recruiting
Screening for eating disorders during pregnancy
This study looks at ways to detect eating disorders in pregnant women. It may help doctors identify concerns earlier and offer support sooner during pregnancy.
PoitiersAges 18 years+ - NCT05902026Enrolling by invitation
Questionnaire study for jaw-related headache and pain impact
This study tests a biopsychosocial questionnaire (a survey about thoughts, daily life, and pain) for people with jaw-related headaches from temporomandibular disorder (TMD). It may help researchers better understand what influences headache severity and how to support treatment planning.
Gaziantep, Hasan Kalyoncu UniversityAges 18–60 - NCT05910294Recruiting
Preventing and improving sexual health in early breast cancer
This study looks at ways to prevent and treat sexual discomfort in people with hormone-receptor positive breast cancer. It targets women who are not having current vaginal dryness or pain related to lower estrogen, and may help protect sexual comfort during cancer-related hormone treatment.
Basking Ridge, New JerseyAges 18 years+ - NCT05903001Recruiting
Breathing muscle testing to help track lung disease
This study checks whether measurements of your breathing muscle (the diaphragm) can act as a useful “biomarker” to track lung disease. You might be asked to do breathing tests and follow study instructions, and your results may help researchers better monitor COPD, asthma, fibrosis, or pulmonary hypertension.
Aachen, North Rhine-WestphaliaAges 18 years+ - NCT05898646RecruitingPhase 2
Daratumumab maintenance for AL amyloidosis after initial treatment
This Phase 2 trial studies whether giving daratumumab as ongoing maintenance therapy after your initial AL amyloidosis treatment can improve survival. It may help by keeping the disease under control longer after you have responded to induction therapy.
Scottsdale, ArizonaAges 18 years+ - NCT05865301Recruiting
Outcomes after approved immunotherapy for young blood cancer patients
This study looks at the real-world results of treating certain B-cell blood cancers in children and young adults with commercially available immunotherapy. It may help doctors better understand how these treatments work for patients after relapse or when they need additional therapy.
Tucson, ArizonaAges Up to 26 years - NCT05876923Recruiting
Exercise study for immune changes in indolent blood cancers
This study looks at how an exercise program may change parts of the immune system in people with slow-growing (indolent) non-Hodgkin lymphoma or chronic lymphocytic leukemia (CLL/SLL). It may help researchers understand which immune changes could be important for your condition.
Scottsdale, ArizonaAges 18–80 - NCT05877014RecruitingPhase 3
Compare two fixation methods for adult arm shaft fractures
This trial tests whether one surgical technique (for stabilizing the upper-arm bone using a rod placed inside the bone) works better than another for adult humeral shaft fractures. It may help find the approach that leads to better healing and recovery.
DijonAges 18 years+ - NCT05869682RecruitingPhase 2
Bright light therapy for fatigue and depression in prostate cancer
This Phase 2 study tests whether a “bright white light” intervention can reduce cancer-related fatigue and depression in people with advanced prostate cancer receiving hormone-based treatment. If it works, it could improve day-to-day well-being while you’re on standard cancer therapies.
Duarte, CaliforniaAges 60 years+ - NCT05874297Recruiting
Online nutrition coaching to help breast cancer chemo side effects
This study tests whether an online nutrition education program can reduce or lessen side effects from chemotherapy in people with breast cancer. If you qualify, you would complete online lessons and questionnaires through the rest of your chemotherapy.
Seattle, WashingtonAges 18 years+
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Common questions
- Are there clinical trials for questionnaire?
- Yes. Clin2 currently lists 1,134 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.