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
- NCT07879183Recruiting
Uzbek-language health questionnaires for men
This study tests three questionnaires in Uzbek to see if they are good tools for measuring men's health. Taking part helps confirm the questionnaires work well for Uzbek-speaking men.
AndijanAges 35–59 - NCT07132788Recruiting
Study of pulmonary arterial hypertension and lean muscle mass
This study looks at how pulmonary arterial hypertension (PAH) affects lean muscle mass. It aims to understand the relationship between PAH and muscle loss, which could help improve treatments and quality of life.
Philadelphia, PennsylvaniaAges 18 years+ - NCT05922007Recruiting
Study of chronic pain effects on daily life
This study looks at how long-lasting pain and its treatment affect quality of life and physical activity. It asks people to complete questionnaires to understand what changes over time.
Ostrava, Moravian-Silesian RegionAges 18–65 - NCT06367400Recruiting
Validating a Sleep Questionnaire for Swedish Children
This study tests a sleep questionnaire designed to help diagnose sleep-related breathing problems in children. It aims to see if the questionnaire works well for Swedish children, making it easier for doctors to spot these issues early.
UppsalaAges 1.5 years–15 years - NCT06490393Recruiting
Supervised quality of life tracking for cancer patients
This trial tests whether having a healthcare professional help you fill out quality of life questionnaires makes a difference for people getting cancer treatment. You must be on ongoing systemic therapy (like chemo, immunotherapy, or hormone therapy) for at least 4 weeks before starting and plan to continue for at least 4 more weeks.
Basel, Canton of Basel-CityAges 18 years+ - NCT07750561Enrolling by invitation
Turkish questionnaire for facial synkinesis
This study tests a Turkish version of a questionnaire that measures abnormal facial movements (synkinesis) that can happen after facial palsy. It aims to see if the questionnaire works well for Turkish-speaking patients.
Istanbul, CevizlibağAges Up to 18 years - NCT07725146Recruiting
Lipedema symptom questionnaire validation study
This study is testing a new questionnaire to better understand lipedema symptoms in women. If you have been diagnosed with lipedema, your answers could help improve care for others with the condition.
Istanbul, KadıköyAges 18–75 - NCT02576483Recruiting
Compare LASIK, SMILE, and PRK for eye prescription correction
This study compares three laser eye surgeries—LASIK, SMILE, and PRK—to see which works best for people who have similar eye prescription needs. You may be a good fit if you’ve never had vision-correcting surgery before and you meet the eye-health safety checks.
Palo Alto, CaliforniaAges 21–62 - NCT06229158Recruiting
Sexual health needs in advanced cancer: a quality-of-life study
This study asks people with advanced cancer (and their partners) about their sexual health and quality of life. It aims to understand what needs are not being met and how to better support patients and their partners.
LyonAges 18 years+ - NCT07657845Recruiting
Long-term safety of a freezing nerve block before pectus surgery
This study checks the long-term safety of a procedure called cryoneurolysis, which uses cold to temporarily numb certain nerves before surgery to fix a sunken chest (pectus excavatum). It may be for people who already had this treatment.
Bergamo, BGAges 14 years+ - NCT07653022Enrolling by invitation
Turkish symptom questionnaire for Turkish speakers with language barriers
This study tests a Turkish version of a questionnaire for Turkish-speaking patients who have psychological complaints but face language barriers. It aims to help doctors better understand their symptoms.
Jette, Brussels CapitalAges 18 years+ - NCT07654504Recruiting
Turkish questionnaire study for brachial plexus birth palsy
This study tests a Turkish version of a questionnaire about how brachial plexus birth palsy (a nerve injury at birth affecting arm movement) impacts daily life. It may help people understand and communicate their symptoms better.
Istanbul, IstanbulAges 18 years+ - NCT06702228Recruiting
Precision care for pulmonary fibrosis in Ireland
This trial is for people with scarring lung disease (pulmonary fibrosis) in Ireland. It aims to better understand and care for the condition, especially in families. The study will look at medical data and may help improve diagnosis and treatment.
DublinAges 18–85 - NCT06683222Recruiting
How muscle and bone talk to each other in healthy women
This study looks at how signals from muscles affect bone health in women of different ages. It aims to understand why bone density changes over time.
MontpellierAges 20–89 - NCT07536685Enrolling by invitation
Turkish Body Awareness Questionnaire Study
This study tests a Turkish-language questionnaire that measures how aware people are of their body's position and sensations. Researchers are recruiting people with brain, nerve, or muscle problems to help develop and validate this assessment tool.
Kütahya, KütahyaAges 18 years+ - NCT06758349Recruiting
Posture check for orchestra musicians
This study looks at the posture of professional orchestra musicians. It aims to help understand how their bodies are affected by playing and identify ways to prevent pain or injury.
Milan, MIAges 18 years+ - NCT07508553Recruiting
Bone density in third trimester: singleton vs. twin pregnancy
This study compares bone density in the third trimester between women pregnant with one baby versus twins. If you qualify, you'll fill out questionnaires and have a quick, non-invasive bone scan to help researchers understand how pregnancy affects bone health.
Roma, RMAges 30–45 - NCT07488377Recruiting
Cognitive Self-Confidence in Parkinson's Disease
This study tests a new questionnaire to measure how confident people with Parkinson's feel about their thinking and memory. It may help doctors better understand and support cognitive changes in Parkinson's.
Istanbul, TurkeyAges 40–85 - NCT07460154Recruiting
Structured review to improve COPD management
This trial tests a structured review process to help people with COPD who have needed multiple steroid pills in the past year. It aims to improve care and prevent future harm from the condition.
North ShieldsAges 35 years+ - NCT07432828Recruiting
Sleep problems and heart disease: a study link
This study looks at how sleep issues (like trouble sleeping or feeling very sleepy during the day) might be related to heart conditions. If you see a heart doctor, you can help by filling out a simple questionnaire about your sleep.
Carquefou, FranceAges 18 years+ - NCT07432789Recruiting
Testing a motion app for children with cerebral palsy
This study tests a smartphone app that measures how children with cerebral palsy move. It aims to see if the app can accurately track motor abilities, which could help doctors and families monitor progress more easily.
DijonAges 6–18 - NCT06581770Recruiting
Turkish Digital Health Readiness Questionnaire Study
This study tests a Turkish version of a questionnaire about how ready people are to use digital health tools. It is for Turkish-speaking adults with chronic conditions like obesity, diabetes, heart disease, or lung disease.
Istanbul, IstanbulAges 18 years+ - NCT06825650Recruiting
Turkish adaptation of a pain questionnaire
This study aims to adapt a questionnaire about pain into Turkish and check if it works well. Researchers want to see if the questions are understandable and reliable for people with certain types of pain.
Ankara, AltındağAges 18 years+ - NCT07402889Enrolling by invitation
Testing a physical activity questionnaire in Lithuanian adults
This study checks if a physical activity questionnaire works well in Lithuanian. It involves filling out forms and isn't a treatment trial.
KaunasAges 1.5 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.