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
- NCT06654284Enrolling by invitation
Quality of life after ICD implant or battery change
This study looks at how people feel and live their daily lives after getting an ICD or having the battery changed. Researchers want to understand your quality of life over time.
LeuvenAges 18 years+ - NCT06652204Recruiting
Questionnaire for caregivers of COPD patients
This study tests a French questionnaire for caregivers of people with COPD. It aims to better understand caregiver burden and support needs.
BrestAges 18 years+ - NCT06643039Recruiting
Study on hospital-acquired respiratory virus infections
This trial looks at respiratory viruses caught in the hospital. If you are an adult patient or healthcare worker with flu-like symptoms that started while in the hospital, you may help researchers learn more about these infections.
BordeauxAges 18 years+ - NCT06633224Recruiting
Fatigue and biology in cancer patients getting chemoradiation
This study looks at why some people feel very tired during cancer treatment. Researchers will collect blood and stool samples to study how the body responds to chemotherapy and radiation.
San Francisco, CaliforniaAges 18 years+ - NCT06630351Enrolling by invitation
Meaning-centered group therapy for caregiver wellbeing
This study tests whether group therapy focused on meaning and purpose can improve the wellbeing of people caring for someone with advanced cancer or another serious illness. Caregivers will join virtual group sessions and complete questionnaires about their feelings and stress.
Jacksonville, FloridaAges 18 years+ - NCT06625034RecruitingPhase 3
Comparing two radiation planning methods for prostate cancer
This trial tests two ways to plan radiation treatment for prostate cancer: one using a computer program (RapidPlan) and the other using human experts. The goal is to see if the computer-assisted method works as well or better.
Scottsdale, ArizonaAges 18 years+ - NCT06601140Recruiting
Testing a smartphone app for tracking depression symptoms
This study tests a smartphone-based emotional monitoring device (EMOCARE) to see if it can accurately measure your mood compared to a standard depression questionnaire. It may help researchers find a simpler way to track depression symptoms.
AgenAges 18 years+ - NCT06616363Recruiting
Brain and nerve connection in POTS and after infection
This study looks at why some people develop POTS (a condition that causes a fast heart rate and dizziness when standing) and if it's linked to how the brain and vagus nerve work together. It also includes people recovering from a serious infection and healthy volunteers for comparison.
Richmond, VirginiaAges 12–21 - NCT06613334Recruiting
Voice recordings to predict schizophrenia relapse
This study tests whether voice recordings can help predict when someone with schizophrenia might have a relapse. It is for people who are stable now and take certain medications.
Paris, ParisAges 18–60 - NCT06608849Recruiting
Long-term health effects after COVID-19
This study looks at how COVID-19 may affect the lungs, heart, and kidneys in the months or years after the infection. It compares three groups: people who never had COVID, people who had COVID but recovered without organ problems, and people who had organ problems during COVID. The goal is to understand what long-term complications might arise.
AthensAges 18 years+ - NCT06601998Recruiting
Heart health after severe pneumonia
This study looks at how heart health changes in people who have recovered from severe pneumonia, including COVID-19. It compares survivors to healthy people and those with heart risk factors.
AlexandroupoliAges 18 years+ - NCT06546813Recruiting
Assistive technology in rehabilitation
This trial studies how assistive technologies (like devices for communication, computer use, or controlling your environment) help people during rehabilitation. If you need a prosthetic device or tool for these purposes, you may be able to join.
Milan, MIAges Any age - NCT06588621Recruiting
Health of healthcare workers: a Paris hospital study
This trial studies the health of healthcare workers in training (residents) at seven Paris hospitals. It aims to evaluate their well-being through a short, anonymous survey.
Paris, IDFAges 18 years+ - NCT06588894Recruiting
Motor imagery and body awareness in type 2 diabetes
This study looks at how well people with type 2 diabetes can imagine movements, sense their body, and think clearly. It aims to understand how these abilities are affected by diabetes.
Kütahya, CentralAges 18–65 - NCT06583408Recruiting
Very Early Estrogen and Ovulation Registry
This registry study is for people who have stopped getting periods due to a condition called functional hypothalamic amenorrhea, which may be linked to low estrogen and ovulation problems. Researchers want to track hormone patterns over time to better understand how the condition develops.
Jacksonville, FloridaAges 18–40 - NCT06582615Recruiting
MIND diet for better brain health during breast cancer treatment
This study tests whether a special diet (called the MIND diet) can help with thinking and memory in women being treated for triple negative breast cancer. Participants will receive nutrition coaching and support to see if it improves brain function.
New Haven, ConnecticutAges 40–65 - NCT06575296RecruitingPhase 1
Revumenib after stem cell transplant for acute leukemia
This trial tests a drug called revumenib to help keep leukemia from coming back after a stem cell transplant. It is for people with specific genetic types of acute leukemia who have recently had or will soon have a transplant.
Duarte, CaliforniaAges 2 years+ - NCT06557733RecruitingPhase 2
Investigating TPST-1495 for Familial Adenomatous Polyposis
This trial tests a new drug, TPST-1495, to reduce the number of benign polyps in the small intestine for people with a condition called familial adenomatous polyposis (FAP). If you join, you will likely not know if you receive the drug or a placebo, to see if the drug is helpful.
Phoenix, ArizonaAges 18 years+ - NCT06550570Recruiting
Ambulatory vs. usual epidural for childbirth satisfaction
This study compares two types of epidurals—one that lets you move around more (ambulatory) and a standard one—to see which makes mothers more satisfied during labor and after delivery. It aims to help women choose the pain relief that best fits their experience.
MetzAges 18 years+ - NCT06565260Recruiting
Exercise and nutrition program for cancer survivors and caregivers
This study offers a community-based program of exercise and nutrition classes for cancer survivors and their caregivers. It aims to help improve health and well-being after cancer treatment.
Buffalo, New YorkAges 18 years+ - NCT06555107Recruiting
Pain before emergency surgery and long-term pain after
This study looks at whether pain you feel before emergency surgery affects long-term pain after the surgery. It may help doctors find ways to prevent chronic pain in patients who have emergency orthopedic (bone/joint) or abdominal (belly) surgery.
AmiensAges 18 years+ - NCT06555757Recruiting
Using AI and sound to predict heart failure worsening
This trial uses a smartphone app to record sounds from your chest and breathing. An AI system will analyze these sound patterns to predict when heart failure symptoms might get worse, so you can get help sooner.
Cambridge, CambridgeshireAges 18 years+ - NCT06317389Recruiting
Study of cancer patients taking oral anticancer drugs
This study follows patients who take oral anticancer drugs and take part in a special monitoring program at Lyon-Sud hospital. It aims to understand what affects treatment safety and outcomes.
Pierre-BéniteAges 18 years+ - NCT06545214Recruiting
Breathing and arousal in drug-resistant epilepsy
This study looks at breathing problems during seizures in people with drug-resistant focal epilepsy. It aims to understand why some people stop breathing or have low oxygen during seizures, which could help prevent sudden death in epilepsy.
Bron, RhoneAges 18–55
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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.