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
- NCT07406867Recruiting
Can photos and bitewings detect gum disease?
This study tests whether photos, X-rays, and other non-invasive methods can identify gum disease as accurately as a clinical exam. It may help patients avoid needles or probing.
Shanghai, Shanghai MunicipalityAges 18 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 - NCT07390435Recruiting
Collecting social and economic data in CCTG cancer trials
This study looks at how well it works to collect information about patients' social and economic backgrounds during cancer clinical trials. If you are already in a CCTG trial or being screened for one, you may be asked to fill out a short questionnaire about things like your education, income, and housing.
Calgary, AlbertaAges 18 years+ - NCT07392437Recruiting
Study on diabetes distress in type 2 diabetes patients
This study looks at the emotional stress related to managing type 2 diabetes, known as diabetes distress. The goal is to understand how common it is and what factors may contribute to it.
NiceAges 18 years+ - NCT07393074Recruiting
Liver cancer and nervous system study
This study looks at how the nervous system works in people with liver cancer (hepatocellular carcinoma) or liver scarring (cirrhosis) who need a liver biopsy. It aims to see if there is a link between the nervous system and liver tumors.
LyonAges 18 years+ - NCT07389681Recruiting
Bone loss repair: Masquelet technique vs transport nails
This study compares two surgical techniques for rebuilding bone in the lower leg or thigh after significant bone loss. If you need this type of surgery, you may be able to join and help doctors learn which method works best.
BordeauxAges 18 years+ - NCT06835907Recruiting
Baclofen for anxiety and alcohol use disorder
This trial tests if baclofen can help people with both anxiety and alcohol use disorder. It is an open-label study, meaning everyone knows they are taking the medication. Researchers want to see if it supports people in staying alcohol-free.
Jette, Brussels CapitalAges 18–65 - NCT07387744Recruiting
Mobility study for people with leg amputation
This study looks at how people with a leg amputation get around both walking and using a wheelchair or scooter. It aims to understand community mobility to help improve care and devices.
Richmond, VirginiaAges 18–85 - NCT07380594Recruiting
Study of psychiatric symptoms in White-Sutton syndrome
This study looks at mental health symptoms in people with White-Sutton syndrome, a rare genetic condition. By answering questions, you can help doctors better understand what challenges people face and how to support them.
DijonAges 6 years+ - NCT07382583Recruiting
Study of a decision tool for endometrial cancer prevention
This study is developing a tool to help women decide if using a hormone-releasing intrauterine device (IUD) is right for them to lower their risk of endometrial cancer. Researchers are interviewing women at different risk levels and healthcare providers to make the tool useful and easy to understand.
Houston, TexasAges 18 years+ - NCT07383844Recruiting
Physical activity for teens with IBD
This study looks at what helps or stops teenagers with inflammatory bowel disease (Crohn's disease or ulcerative colitis) from being physically active. It involves completing questionnaires and an interview to understand your experience.
NiceAges 10–17 - NCT07388303Recruiting
Hand function after injury or surgery
This study looks at how people feel about their ability to use their hand after an injury or surgery on their hand or forearm. It aims to understand how hand function relates to a person's confidence in daily tasks.
DenizliAges 18–65 - NCT06799663Recruiting
Smartphone use and its effects on kids' posture and fitness
This study looks at how smartphone addiction affects posture, fitness, and intelligence in children and teens aged 9 to 18. It aims to understand the physical and mental impacts of heavy phone use.
KafrelsheikhAges 9–18 - 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+ - NCT07377929Recruiting
Botox with prostate surgery for urinary symptoms
This trial tests whether adding Botox to standard prostate surgery (TURP or Aquablation) can better improve urinary symptoms in men. It is for men who are already planning to have both procedures.
Seattle, WashingtonAges 18 years+ - NCT07378137Recruiting
Patient and doctor views on heart treatment outcomes after stenting
This study compares how patients and doctors think about the benefits of heart treatments after a stent procedure. It involves filling out a questionnaire to share your preferences.
Xi'an, ShaanxiAges 18 years+ - NCT07379138Recruiting
Talk therapy for distress in advanced melanoma
This study is testing whether a type of talk therapy (cognitive behavioral therapy) can help improve quality of life, including mental health, for people recently diagnosed with advanced melanoma. It is designed to understand and reduce cancer-related distress.
Rochester, MinnesotaAges 18 years+ - NCT07378163Recruiting
Patient and doctor preferences for stent devices
This trial asks patients who have had a stent placed for heart artery disease and their doctors what they prefer in a stent. It aims to understand what factors matter most when choosing a device.
Xi'an, ShannxiAges 18 years+ - NCT05127980Recruiting
Study of immune antibodies after first-time EBV infection
This study looks at how the immune system’s antibodies behave after a first-time EBV infection, including whether they mistakenly react with the body’s own tissues. You might be offered a chance to help doctors understand why some people get longer or more intense symptoms from infectious mononucleosis.
BaselAges 18 years+ - NCT07365566Recruiting
Pain and sleep behavior disorder study
This study looks at pain in people with a sleep condition called idiopathic REM sleep behavior disorder (iRBD), where people act out their dreams. It also includes a group of people with narcolepsy who have similar sleep issues. The goal is to understand how pain relates to these conditions.
ToulouseAges 18 years+ - NCT07356557Recruiting
Medication adherence in inherited metabolic disease patients
This study looks at how well patients with hereditary metabolic diseases take their daily oral medications. It aims to understand if there are challenges with sticking to the treatment plan.
ParisAges 7–20 - NCT07354165Recruiting
Financial burden in early breast cancer patients
This study looks at the financial challenges people with early-stage breast cancer face during treatment. Researchers want to understand how costs affect patients so they can find ways to help.
NaplesAges Any age - NCT07356180Enrolling by invitation
Physical Activity in Pregnancy Study
This study looks at physical activity during and after pregnancy for women who had a planned C-section. It may help understand how activity affects recovery for both mother and baby.
Baltimore, MarylandAges 18–45 - NCT00005095Recruiting
Ovarian cancer risk study: specimens and health data
This study collects tissue samples and medical information from people at higher risk for ovarian cancer or undergoing gynecologic surgery. Researchers use this data to develop better ways to detect and prevent ovarian cancer early.
Chicago, IllinoisAges 18–80
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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.