Clinical trials
Effectiveness clinical trials
Below are recruiting effectiveness clinical trials, each written for real people, not researchers. We’re tracking 6,871 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05232331Recruiting
Eat nitrate-rich vegetables to study gum inflammation and mouth bacteria
This study looks at whether eating more nitrate-rich vegetables changes inflammatory markers and the balance of bacteria in the mouth for people with periodontitis (serious gum disease). It may help us understand better diet-based support alongside standard non-surgical gum treatment.
Guadalajara, JaliscoAges 30–65 - NCT05235945Recruiting
Exercise program for people waiting for weight-loss surgery
This trial studies whether an exercise program can help people prepare for bariatric (weight-loss) surgery. It aims to see if exercise is safe and beneficial while you’re waiting for your surgery date.
LondonAges 18 years+ - NCT05236686Recruiting
Surgery to remove upper abdomen lymph nodes for ovarian cancer
This trial studies whether removing lymph nodes in the upper abdomen (hepatoceliac lymph nodes) improves outcomes for people with stage III or IV ovarian, fallopian tube, or primary peritoneal cancer that has spread to those lymph nodes. It also looks at how this surgery works for people with certain types of relapse, often alongside chemotherapy.
ShanghaiAges 18–75 - NCT05236374Recruiting
Daily beef in a heart-healthy diet to study zinc cells
This study tests whether eating daily beef as part of a heart-healthy diet changes how your body’s cells handle zinc, a mineral important for many functions. It’s designed for older adults and includes strict diet and medication rules to keep results accurate.
Davis, CaliforniaAges 55–70 - NCT05237089Recruiting
Electroacupuncture for weight loss in people with prediabetes
This trial studies whether electroacupuncture can help reduce weight in adults who have obesity and blood sugar levels in the prediabetes range. You might be eligible if your weight has been stable and you don’t have certain medical or skin problems.
Shanghai, Shanghai MunicipalityAges 18–65 - NCT05241197Recruiting
Low-load leg training with blood flow restriction for Achilles pain
This study tests whether gentle resistance exercises plus a blood-flow restriction wrap can reduce long-lasting Achilles tendon pain. You may be asked to train in the clinic several times a week for 12 weeks.
Rosario, Santa Fe ProvinceAges 18–50 - NCT05245903Recruiting
Test a supplement and track brain changes with wearable sensors
This study tests whether taking nicotinamide riboside (a form of niacin) affects early memory changes in people with mild cognitive impairment (MCI) or mild Alzheimer’s disease (AD). It also uses passive wearable or sensor data (“digital biomarkers”) to measure changes over time.
Belmont, MassachusettsAges 18–89 - NCT05246527Recruiting
Exercise study to see effects in borderline personality disorder
This study looks at how a physical exercise session affects thinking and other outcomes in people diagnosed with borderline personality disorder. It may help researchers understand whether exercise has short-term benefits or risks for this group.
Bonn, North Rhine-WestphaliaAges 18–50 - NCT05253326Recruiting
Relaxing muscle exercises after spine surgery
This trial tests whether a structured “progressive muscle relaxation” routine can reduce pain and help recovery after spine surgery. You may be asked to learn and practice the relaxation steps even if you’ve never done them before.
Istanbul, ÜsküdarAges 18 years+ - NCT05254431Recruiting
Exercise timing program for breathing trouble and sleep apnea
This trial tests whether doing exercise at set intervals can improve daily function in Veterans who have both COPD (lung disease) and OSA (sleep apnea). It may help you move and function better while managing symptoms from both conditions.
Salem, VirginiaAges Any age - NCT05260177Recruiting
40 Hz light therapy for mild to moderate Alzheimer’s
This study tests whether a non-invasive 40 Hz light therapy system can help people with early Alzheimer’s. You’ll likely use the device at home and wear a small activity monitor, while doing memory and thinking tests.
RoskildeAges 40 years+ - NCT05263297Recruiting
Testing two ways to reduce anxiety during blood draws
This study compares two combined programs to help children feel less stressed during a blood draw. It uses simple, child-friendly activities to see which approach works better for coping during the procedure.
KaramanAges 8–10 - NCT05265299RecruitingPhase 3
Testing the right aspirin dose for COPD symptoms
This Phase 3 trial studies which aspirin dose works best in people with COPD, with the goal of improving disease control. You may be asked to take aspirin and be monitored for safety, especially bleeding risk and heart/brain history.
Baltimore, MarylandAges 40–80 - NCT05266534Recruiting
Terlipressin or oxytocin during open fibroid surgery
This trial compares two injected medicines (terlipressin vs carbetocin) given into the uterus during open fibroid (myomectomy) surgery to see which one reduces blood loss and helps maintain hemoglobin. It may help patients by targeting lower bleeding during surgery.
MaadiAges 16–40 - NCT05268588Recruiting
Post-birth health texting study during late pregnancy
This study tests whether phone-based (mHealth) messages and support can improve health after you give birth. It may help you stay informed and get support during the weeks right after delivery.
Chandīgarh, HaryanaAges 18–49 - NCT05270525RecruitingPhase 2
Ensifentrine nebulizer trial to reduce COPD airway inflammation markers
This trial tests ensifentrine, given through a nebulizer, to see if it changes inflammation-related substances found in mucus/phlegm in people with COPD. It may help doctors understand whether this treatment improves COPD biology and could lead to better symptom control.
Birmingham, AlabamaAges 40–80 - NCT05275608Recruiting
Low-carb diet effects in people with metabolic syndrome
This trial studies whether a very low-calorie, low-carb diet (VLCKD) can improve metabolic health in adults with metabolic syndrome, fatty liver, and type 2 diabetes. It may help lower blood sugar and improve related health markers if you fit their specific diabetes and liver/kidney criteria.
Novara, ItalyAges 25–65 - NCT05277532Recruiting
Exercise and sleep timing for overweight type 1 diabetes
This trial studies whether changing daily sleep timing (circadian rhythm) and doing physical exercise can improve health outcomes in people who are overweight and have type 1 diabetes (or in some healthy people). It may help by seeing what combinations of routine and activity are most beneficial.
StockholmAges 18–50 - NCT05282277RecruitingPhase 4
Estradiol to improve brain and reward changes in midlife women
This study tests whether a hormone called estradiol (given as a patch and pill) changes how the brain and body respond to reward in some midlife women with low pleasure and/or psychosis symptoms during menopause transition. It may help researchers understand whether estrogen treatment can improve mood-related “reward” function in this group.
Chapel Hill, North CarolinaAges 45–55 - NCT05282095Recruiting
Study how HPV changes affect outcomes in CIN2
This study follows women with an early abnormal cervix cell change (CIN2/CIN2-3) to see how HPV DNA “integration” relates to whether the condition improves or worsens. It may help doctors better predict prognosis and guide safer monitoring, especially if you want to become pregnant.
Fuzhou, FujianAges Up to 45 years - NCT05283382RecruitingEarly Phase 1
Cannabidiol trial for learning and anxiety
This early-phase study tests how cannabidiol (CBD) affects learning and anxiety. You may be able to join if you meet age and health requirements and have not used CBD or other cannabis recently.
Storrs, ConnecticutAges 18–50 - NCT05287815Recruiting
Study care needs and nursing support for older adults
This study looks at what health care support older adults need and how nursing help may improve healthy habits and quality of life. You may be invited if you’re 65 or older and able to communicate for the study.
Famagusta, MutluyakaAges 65–84 - NCT05289934Recruiting
Recorded music to see how it affects seizures
This study is testing whether listening to recorded music can change seizure activity and brain-wave patterns in children monitored in an epilepsy center. Your child might benefit by helping researchers learn how music could affect seizures during close observation.
Baltimore, MarylandAges 4–17 - NCT05295498Recruiting
Brain stimulation trial for nerve pain relief
This trial studies whether repeated magnetic stimulation of the brain can reduce ongoing nerve pain. It may help people whose nerve pain has been steady for at least a month and who still need pain medicine more than once a week.
KrakowAges 18 years+
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Common questions
- Are there clinical trials for effectiveness?
- Yes. Clin2 currently lists 6,871 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.