Clinical trials
Effectiveness clinical trials
Below are recruiting effectiveness clinical trials, each written for real people, not researchers. We’re tracking 6,374 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06858683Recruiting
Time-restricted eating study for people with obesity
This study tests if eating only within a certain time window each day can improve immune function in people with obesity who are planning bariatric surgery. You would follow a time-restricted eating plan for 10-12 weeks before your surgery to see how it affects your health.
BarcelonaAges 18–64 - NCT06968507RecruitingPhase 4
Steroid pills vs. ear injections for sudden hearing loss
This trial compares two treatments for sudden hearing loss: steroid pills taken by mouth or steroid injections into the ear. It aims to find which is more effective for patients who developed hearing loss within the last 2 weeks.
Istanbul, KartalAges 18–80 - NCT06971445Enrolling by invitation
Omega-3 supplements for pregnant women with HIV
This trial tests whether taking omega-3 supplements can improve pregnancy outcomes and reduce inflammation in pregnant women living with HIV who are on antiretroviral therapy. If you are between 20 and 29 weeks pregnant with a single baby, you may be eligible to join.
Mexico City, Mexico CityAges 18 years+ - NCT06962800RecruitingPhase 3
Study of felzartamab for adults with primary membranous nephropathy
This study tests whether felzartamab, given as an infusion, can help treat primary membranous nephropathy (a kidney disease causing protein in the urine and swelling). It may reduce protein loss and improve kidney function compared to standard care alone.
Huntsville, AlabamaAges 18–80 - NCT06968741Recruiting
Study of a new artificial urinary sphincter for men with stress incontinence
This study tests a new device called UrOActive that helps men with stress urinary incontinence (leaking urine when coughing, sneezing, or moving). It aims to see if the device is safe and works well to control leaks.
Los Angeles, CaliforniaAges 22 years+ - NCT06968299Recruiting
Probiotic supplement for memory, sleep, and mood
This study tests a special probiotic supplement (ExoBDNF) to see if it can improve memory, thinking, sleep, and mood in healthy adults. You may be able to join if you are generally healthy and not taking probiotics.
TaipeiAges 18 years+ - NCT02781519RecruitingPhase 1
Study how THC affects men and women who have used cannabis before
This Phase 1 study tests how delta-9 THC (the main active ingredient in cannabis) affects healthy adults, and whether the effects differ by gender. It may help researchers understand risks and responses to THC, which could guide safer use and future treatments.
West Haven, ConnecticutAges 18–55 - NCT06967402Recruiting
Mouthwash study for gum disease treatment
This study tests two types of mouthwash to see which helps treat gum disease better when used with regular dental care. It may be a good option if you have moderate to severe gum disease and are generally healthy.
Hong KongAges 18 years+ - NCT06965699Recruiting
Plant-based protein sauce for older adults
This study tests whether a plant-based, high-protein sauce can improve amino acid levels and help older adults feel fuller after eating. It may help with maintaining muscle health and appetite.
Exeter, DevonAges 60 years+ - NCT06965595Enrolling by invitation
Physiotherapy after gynecological abdominal surgery
This trial tests different physiotherapy methods to see which helps most with recovery after gynecological abdominal surgery. It may be a good fit if you've recently had a hysterectomy or similar surgery and want to improve your recovery.
KayseriAges 18 years+ - NCT06964464RecruitingPhase 4
Comparing two heart failure medications in ICD patients
This trial compares two beta-blocker medications, carvedilol and metoprolol succinate, to see which one works better for people with heart failure who have an implantable cardioverter defibrillator (ICD). If you are currently taking metoprolol succinate, you may be able to switch to carvedilol and help researchers find the best treatment.
Scottsdale, ArizonaAges 18 years+ - NCT06966687Enrolling by invitation
Ulinastatin and thymosin for immune support after aortic dissection surgery
This trial tests whether two anti-inflammatory drugs, ulinastatin and thymosin α1, can help protect your immune system and organs after emergency surgery for a torn aorta (aortic dissection). If you qualify and take part, you may receive these medications in addition to standard care.
Beijing, Beijing MunicipalityAges 18–80 - NCT06969872Recruiting
Probiotics for Constipation Relief
This trial tests whether taking probiotics can help relieve constipation in adults. If you have chronic constipation but no serious health issues, you may be able to join.
Taichung, SouthAges 18–75 - NCT06965426Recruiting
Eye vitamins and skin test: a crossover study
This study tests whether a supplement containing lutein, zeaxanthin, and meso-zeaxanthin can increase the amount of these nutrients in your skin. You will take the supplement and a placebo at different times to see if there is a difference.
Kansas City, MissouriAges 18 years+ - NCT06964802Recruiting
Cold salt water foot bath to prevent nerve damage from chemo
This trial tests whether soaking your feet in cold salt water before chemotherapy can help prevent nerve damage (called peripheral neuropathy) that is a common side effect of the breast cancer drug paclitaxel.
Istanbul, UskudarAges 18 years+ - NCT06966323Recruiting
Course to strengthen parent-teen relationships
This study tests a course designed to help parents and teens (ages 12–18) improve their relationship when stress between them is making the teen's problems worse. The course aims to strengthen your bond and reduce conflict.
Almere StadAges 12–18 - NCT06969651Recruiting
How Social Media Ads Affect Teens' Snack Choices
This study looks at how social media ads with different kinds of food images and comments affect what teens choose to eat. If you join, you'll view Instagram-style ads and then get a snack, so researchers can see how the ads influence your calorie intake.
New York, New YorkAges 13–17 - NCT06971224RecruitingPhase 2
Can a vitamin B3 supplement improve sleep?
This study tests whether a daily supplement called nicotinamide riboside (a form of vitamin B3) can improve sleep quality in healthy adults. If you are between 40 and 60 years old, have normal sleep, and are not taking sleep aids, you may be able to join.
BergenAges 40–60 - NCT06962605Recruiting
Running in short bursts and metabolic health
This trial looks at how doing short, repeated runs (intermittent running) can affect your metabolism and overall health. It's for men who are already active and want to see if this type of exercise helps them stay healthy.
TaipeiAges 20–45 - NCT06962579Recruiting
Exercise to prevent chemotherapy nerve damage
This study tests whether a personalized exercise program at home can help prevent nerve damage (peripheral neuropathy) caused by certain chemotherapy drugs. It is for people with breast, gynecological, or colon cancer starting a new chemotherapy treatment.
EdegemAges 18 years+ - NCT06968052Recruiting
Feldenkrais method for forward head posture
This study tests whether the Feldenkrais method (gentle movement lessons) can improve forward head posture in people who sit at a desk for long hours. You may join if you are 18–65, have forward head posture, and spend at least 4 hours daily at a desk.
Istanbul, BuyukcekmeceAges 18–65 - NCT06971367Recruiting
Study to encourage HIV retesting in Kenya and Uganda
This study is testing different ways to encourage people who are at higher risk for HIV to get retested regularly. If you are HIV-negative and get tested at a participating clinic, you may be eligible.
MbitaAges 15 years+ - NCT06972056RecruitingPhase 4
Comparing migraine prevention drugs: atogepant, propranolol, topiramate
This study compares three common migraine prevention medications to see which works best. You might be able to join if you have migraines at least 4 days a month and haven't taken these specific drugs before.
Flagstaff, ArizonaAges 18–70 - NCT06966817Enrolling by invitation
Mouth care solutions for ventilator patients in the ICU
This study tests two different mouth-care solutions for patients on breathing machines, to see if they can prevent pneumonia and improve mouth health in intensive care.
AnkaraAges 18–90
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Common questions
- Are there clinical trials for effectiveness?
- Yes. Clin2 currently lists 6,374 recruiting effectiveness 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 effectiveness 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 effectiveness 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.