Clinical trials
Effectiveness clinical trials
Below are recruiting effectiveness clinical trials, each written for real people, not researchers. We’re tracking 6,377 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06720558Recruiting
Placebo probiotic effects on gut health in mild GI symptoms
This study tests whether a placebo probiotic can improve gut health and overall well-being in people with mild digestive issues like gas, bloating, or irregularity. If you have mild symptoms that don't stop your daily activities, this trial may help understand if believing you're taking a probiotic can make you feel better.
MilanAges 20–65 - NCT06720571Recruiting
Nerve stimulation for emotion and thinking in Prader-Willi syndrome
This trial tests whether a gentle, non-invasive nerve stimulation (like a small device on the neck) can help people with Prader-Willi syndrome regulate emotions and improve planning and focus. It may be a new option if you have trouble with emotional control or daily organization.
BordeauxAges 18 years+ - NCT06719817Recruiting
Trace elements in egg fluid and ICSI success
This trial studies if certain minerals in the fluid around your eggs can affect the success of ICSI (a type of IVF). The goal is to see if these levels help predict pregnancy outcomes.
Asyut, EgyptAges 25–40 - NCT06720870Recruiting
Siltuximab for Castleman's disease: a real-world study
This trial is looking back at the medical records of people with a rare condition called Castleman's disease to see how well the drug Siltuximab worked for them in everyday hospital care, not in a research setting. The goal is to learn more about how safe and effective the drug can be for patients in real life.
Bologna, BolognaAges 18 years+ - NCT05939999Recruiting
Elastic tape plus rehab for COPD breathing problems
This trial studies whether using elastic tape during pulmonary rehabilitation can improve breathing and physical function in people with moderate to very severe COPD. It may help you tolerate rehab exercises more comfortably if you meet their specific health and safety requirements.
São Paulo, São PauloAges Any age - NCT06661603Recruiting
Yoga and meditation for medical students' health
This study looks at how doing yoga and meditation might affect stress hormones, immune markers, and health in medical students. If you are a medical student at the University of Pecs, you may be able to join and learn how these practices can help your well-being.
Pécs, PécsAges 18–40 - NCT06424756RecruitingPhase 2
Antioxidant supplement for blood vessel health
This study tests whether an antioxidant supplement can improve blood vessel health in healthy adults. It compares the supplement's effects in non-Hispanic Black and non-Hispanic White participants to see if there are differences in how blood vessels respond.
Athens, GeorgiaAges 18–75 - NCT07585370Recruiting
Long-term Safety and Effectiveness of Shingles Vaccine
This study follows up with people who received an experimental shingles vaccine (a live, weakened form of the virus) in a previous trial from 2020–2021. Researchers want to understand how well the vaccine continues to protect against shingles over time.
Nanjing, JiangsuAges 40 years+ - NCT07585968Recruiting
New Catheter Treatment for Dangerous Heart Rhythms
This trial tests a new catheter-based procedure to treat life-threatening irregular heartbeats (ventricular tachycardia) that keep coming back despite medication. If you've had a heart attack and your implanted defibrillator hasn't fully controlled these arrhythmias, this procedure might help prevent future episodes.
Indianapolis, IndianaAges 18–85 - NCT07578584RecruitingPhase 1
Safety study of NNC0497-0040 in healthy and overweight adults
This early-stage study tests a new investigational medication in three groups: healthy adults with normal weight, adults who are overweight or obese, and men with type 1 diabetes who are also overweight. The research aims to understand how safe the medication is and how the body processes it.
NeussAges 18–55 - NCT07580586RecruitingPhase 1
Study of BV100's effect on polymyxin B in healthy volunteers
This early-stage study tests how a new drug called BV100 affects how your body processes polymyxin B, an antibiotic. Researchers want to understand how these two drugs interact so they can develop safer treatments.
ViennaAges 18–55 - NCT06715761Recruiting
Myofascial release for chronic low back pain in CrossFit athletes
This trial tests if a hands-on or tool-assisted muscle release technique can reduce long-term low back pain and improve posture in people who do CrossFit. If you have had low back pain for at least 12 weeks and do CrossFit regularly, this study may help you find relief.
Goiânia, GoiásAges 18–59 - NCT07581171Recruiting
Intergenerational Mentoring Program for Youth and Older Adults
This study brings together older adults and young people (ages 12–21) whose parents have mental health challenges. The goal is to create supportive friendships between generations and reduce loneliness and isolation for both groups.
HamburgAges 12 years+ - NCT07579039Recruiting
Stretching and tape for pregnancy back pain
This study tests whether combining stretching exercises with special therapeutic tape can safely reduce lower back pain during pregnancy. If it works, it could offer pregnant women a non-medication option to feel better.
Rahim Yar Khan, Punjab ProvinceAges 18–35 - NCT07581587Recruiting
Breathing Exercises and Brain Function in Heart Failure
This study tests whether special breathing exercises—done alone or while doing a mental task—can improve memory and thinking skills in people with heart failure. Researchers want to see if training your breathing muscles helps your brain work better.
Istanbul, FatihAges 40 years+ - NCT07579078Enrolling by invitation
Vitamin D and Brain Activity in Women With Depression
This study tests whether vitamin D supplements can improve brain wave patterns in women diagnosed with depression who have low vitamin D levels. Researchers will measure brain activity using EEG (a non-invasive test that records electrical signals from the brain) before and after vitamin D treatment.
DhakaAges 20–40 - NCT07580989Recruiting
Brain Stimulation Study: How Left Motor Area Responds
This research study uses magnetic pulses on your scalp to stimulate a specific brain area and measure how your brain responds. The goal is to understand how different parts of your brain work together and communicate during this type of brain stimulation.
GistrupAges 18–60 - NCT07579026Recruiting
Breathing exercises for pregnant women with POTS
This study tests whether special breathing exercises can help pregnant women with POTS (a condition where your heart races when you stand up). POTS causes dizziness, lightheadedness, and fainting, and this trial aims to see if breathing retraining makes these symptoms better during pregnancy.
Sialkot, Punjab ProvinceAges 19–35 - NCT07585045Recruiting
Magnesium Supplements for Fibromyalgia Not Helped by Standard Drugs
This study tests whether taking magnesium by mouth can reduce fibromyalgia pain in people whose symptoms don't improve with common medications like amitriptyline, duloxetine, or pregabalin. Magnesium is a mineral that may help relax muscles and ease pain.
Lahore, Punjab ProvinceAges 18–65 - NCT07583199Recruiting
Support Circles for Midwifery Student Wellbeing
This study tests whether a support group for midwifery students helps reduce stress and burnout while building professional confidence. You would attend support circle meetings and share your experiences with other midwifery students.
Amasya, CenterAges 18–49 - NCT07585994Recruiting
Probiotic supplement for long-standing type 1 diabetes
This study tests whether taking a specific probiotic (a beneficial bacteria) for 4 weeks can improve immune function and metabolism in people who have had type 1 diabetes for at least 5 years. Researchers believe this probiotic may help the body's remaining insulin-producing cells work better.
AmsterdamAges 18 years+ - NCT07582718Recruiting
High-Intensity Interval Training for Fitness in Adults
This study tests whether intense, short bursts of exercise can improve fitness in adults who are overweight. You'll do whole-body workouts designed to boost cardiovascular health and physical performance.
BrusselsAges 18–55 - NCT07585669Recruiting
Omega-3 Supplements for New Celiac Disease Patients
This study tests whether omega-3 fatty acids (a type of fish oil supplement) can reduce inflammation and improve gut health in people newly diagnosed with celiac disease. Participants will follow a gluten-free diet while taking the supplement to see if it helps their body heal.
Santiago, Metropolitan RegionAges 18–65 - NCT07585305Recruiting
Blood Flow Restriction Training for Knee Pain in Athletes
This study compares two types of exercise—resistance training and cycling—both using a special technique that temporarily reduces blood flow to your leg muscles. The goal is to see which approach works better for reducing knee pain and improving strength in athletes with patellofemoral pain (pain around or behind the kneecap).
IslamabadAges 18–40
Hear when a new Effectiveness trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for effectiveness?
- Yes. Clin2 currently lists 6,377 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.