Clinical trials
Questionnaire clinical trials
Below are recruiting questionnaire clinical trials, each written for real people, not researchers. We’re tracking 1,162 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07105995Recruiting
Chewing test with different foods for dental students
This trial studies how different foods affect jaw movement and tooth contact in healthy people. You may qualify if you are a dental student at Istanbul University with natural teeth and no jaw problems.
Istanbul, Süleymaniye FatihAges 18 years+ - NCT05985681RecruitingPhase 1
Testing an HPV vaccine to prevent cancer
This trial tests a new vaccine (RG1-VLP) to see if it can prevent HPV-related cancers. It is for women aged 18 to 60 who have not had an HPV vaccine before.
Birmingham, AlabamaAges 18–60 - NCT06279013Recruiting
Phone check-ins to manage symptoms during oral cancer treatment
This study tests two ways of using telephone check-ins to help people manage side effects and emotional distress while taking oral anti-cancer pills at home. If you are starting or recently started an oral anti-cancer drug, you may be able to join.
Phoenix, ArizonaAges 18 years+ - NCT07075523Recruiting
Brain scans and markers after CAR T-cell therapy
This study uses brain scans and blood markers to understand how CAR T-cell therapy affects the brain. It may help researchers predict or manage potential side effects.
La Jolla, CaliforniaAges 18 years+ - NCT07119086Recruiting
Arbovirus infection study in the Indian Ocean
This study looks at patients with suspected, probable, or confirmed arbovirus infections (like dengue, chikungunya, or Zika) to understand what factors lead to hospitalization and how severe the illness can be. It may include adults, children, and even newborns if they might have been exposed.
Saint-PierreAges Any age - NCT06709534Recruiting
Exercise program for gynecologic cancer survivors
This study tests a personalized at-home exercise program designed for gynecologic cancer survivors who have finished treatment. The goal is to see if it can help you feel better and improve symptoms.
Atlanta, GeorgiaAges 18 years+ - NCT07557342Recruiting
Sexual Health Study for Women With Gynecologic Cancer
This study looks at how gynecologic cancer (cancers of the ovaries, cervix, uterus, vulva, or vagina) affects sexual health and relationships. Researchers will talk with you and your partner about your experiences to better understand how to support sexual well-being during and after cancer treatment.
Bologna, BolognaAges 18–75 - NCT05753306RecruitingPhase 2
Robot surgery plus heated chemo for limited spread stomach cancer
This study tests a “robot-assisted” surgery to remove stomach cancer in the belly lining (peritoneum) along with heated chemotherapy placed inside the abdomen. It’s for people whose cancer has spread only in the peritoneum, aiming to control disease when there’s a good chance of removing it all.
Rochester, MinnesotaAges 18–80 - NCT04914091Recruiting
Study comfort and medication use after CAR-T therapy
This study looks at quality of life and how medicines are used for people who are getting CAR-T cell therapy for DLBCL. It aims to better understand what helps patients feel and function during follow-up after treatment.
Pierre-BéniteAges 18 years+ - NCT06410209RecruitingPhase 2
Walking Juntos: Smartphone program to help Hispanic cancer survivors be active
This study will test if a smartphone program and social media group can help Hispanic/Latino teens and young adults who had childhood cancer become more physically active. You would wear a Fitbit and use a phone app with culturally tailored tips and support.
Mesa, ArizonaAges 15–20 - NCT04871542Recruiting
Predicting risk of immune therapy side effects
This study tries to predict who is more likely to get serious side effects from immune checkpoint medicines used for solid tumors. You may help researchers by answering questionnaires before treatment and during follow-up, and by possibly storing sample specimens.
Anchorage, AlaskaAges 18 years+ - NCT06763328RecruitingPhase 3
Metformin for insulin resistance after breast cancer chemo
This study tests if metformin, a common diabetes medicine, can help reduce insulin resistance in women who finished chemotherapy for early-stage breast cancer. It aims to improve long-term health and prevent future problems.
Duarte, CaliforniaAges 18 years+ - NCT07681492Recruiting
Depression, aging, and antidepressants: a belief study
This trial studies how depression and antidepressants affect belief updating in older adults. You may join if you are over 65, have major depression, and are starting a new antidepressant. The goal is to learn more about how your brain adjusts beliefs over time.
RennesAges 65 years+ - NCT07658326Recruiting
Stress and rotator cuff surgery study
This study looks at how stress before surgery might affect recovery in people having rotator cuff surgery. You may be able to join if this is your first surgery for a torn rotator cuff and you don't have certain other health problems.
CornebarrieuAges 18 years+ - NCT07009288Recruiting
Time-restricted eating for childhood cancer survivors
This study looks at whether eating only during a set time each day can improve health in adults who survived childhood cancer. It may help with weight and related health issues.
New York, New YorkAges 18 years+ - NCT06370338Recruiting
Expert views on cardiothoracic critical care training
This study interviews experts in cardiothoracic critical care to understand what training is needed. It helps improve how doctors learn to care for patients after heart or chest surgery.
Columbus, OhioAges Any age - NCT07124377Recruiting
Study of hereditary ATTR amyloidosis symptoms
This study looks at how a specific genetic change (Val50Met) affects people with hereditary ATTR amyloidosis. It may help doctors better understand the condition and its symptoms.
Charata, Chaco ProvinceAges 20 years+ - NCT07692126Recruiting
Neck pain and hand strength: core vs shoulder exercises
This study compares two types of exercises to see which better improves hand grip strength and neck pain. If you have had chronic myofascial neck pain (trigger points) in the upper shoulder muscle for over 6 months, this trial may help find which exercise works best for you.
Giza, Giza GovernorateAges 25–45 - NCT07428005Recruiting
Italian questionnaire development for splenectomized patients
This study aims to create a questionnaire for patients who have had their spleen removed (splenectomy). The questionnaire will help doctors better understand and manage these patients' health needs.
Rome, LazioAges 18 years+ - NCT07417787Recruiting
Point of care tests for early medical abortion management
This trial tests if a rapid blood test can replace ultrasound for women who want a very early medical abortion (before 6 weeks). It aims to make care simpler and faster.
GothenburgAges 16–55 - NCT05596357Recruiting
Study during hernia surgery to understand patient experience
This trial enrolls adults who are scheduled for planned hernia/abdominal wall surgery to learn more about patients’ experiences and follow-up through questionnaires. If you qualify and agree, your study participation may help improve how care is planned around surgery.
Colombes, Île-de-France RegionAges 18–79 - NCT07409506Recruiting
How caregivers help people with Alzheimer's
This study looks at the support that caregivers provide to people with Alzheimer's disease at different stages. It helps researchers understand how caregiving changes over time, which can lead to better support for both patients and their families.
VilleurbanneAges 60 years+ - NCT06260683Recruiting
Comparing tobacco vs. non-tobacco flavored e-cigarettes for quitting smoking
This study tests whether using e-cigarettes with a tobacco flavor or a non-tobacco flavor helps people who smoke switch away from regular cigarettes. Participants will use either e-cigarettes or nicotine replacement therapy for a period of time, and researchers will track their smoking behavior.
Columbus, OhioAges 21 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+
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Common questions
- Are there clinical trials for questionnaire?
- Yes. Clin2 currently lists 1,162 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.