Clinical trials
Effectiveness clinical trials
Below are recruiting effectiveness clinical trials, each written for real people, not researchers. We’re tracking 6,378 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05869734Enrolling by invitation
Conservative care to improve urinary symptoms and sleep in diabetes
This study looks at a non-surgical (“conservative”) approach to help women with diabetes who have bladder-related urinary symptoms and poor sleep. It aims to see whether these symptoms improve at the same time, helping quality of life.
New Taipei CityAges 20–79 - NCT05857371RecruitingPhase 2
Stem cell–like treatment injection after urethrotomy for urethral narrowing
This Phase 2 trial tests whether injecting a patient’s own fat-derived cells during an endoscopic procedure can safely improve healing in bulbar urethral narrowing. It’s mainly for men with a specific type and short length of narrowing who can temporarily stop certain immune-suppressing medicines.
MarseilleAges 18–85 - NCT05876923Recruiting
Exercise study for immune changes in indolent blood cancers
This study looks at how an exercise program may change parts of the immune system in people with slow-growing (indolent) non-Hodgkin lymphoma or chronic lymphocytic leukemia (CLL/SLL). It may help researchers understand which immune changes could be important for your condition.
Scottsdale, ArizonaAges 18–80 - NCT05856786Recruiting
Study how eye focusing surgery changes OCT measurements
This study looks at how refractive (vision-focusing) surgery affects OCT test images inside the eye. It may help doctors measure and track eye changes more accurately after surgery.
Omaha, NebraskaAges 19 years+ - NCT05857813Recruiting
Social skills group training for teens with autism
This trial tests a structured social skills training group for adolescents with autism spectrum disorder (ASD) to improve day-to-day social functioning. It involves both the teen and a Chinese-speaking caregiver who helps support the training at home.
TaipeiAges 11–20 - NCT05866406Recruiting
Time-restricted eating to improve heart and sugar health
This study tests whether eating only within a set daily time window can improve cardiometabolic health (things like blood sugar and heart-related measures). You may be eligible if you have overweight and borderline/high-risk blood sugar but do not have diabetes and can follow the eating and testing rules.
CambridgeAges 25–75 - NCT05858411Recruiting
Biologic gum treatments added to non-surgical cleaning
This trial studies whether adding a biologic medicine to standard non-surgical gum (periodontal) treatment can improve deep gum pockets in certain bone defects. It may help people whose gum disease has specific “intrabony” defects, but you must meet several health and medication rules.
TiranaAges 18 years+ - NCT05847478Recruiting
Acupressure vs eating plan breaks for specific stomach syndrome
This study compares ear (auricular) acupressure to an intermittent dietary restriction approach in children who have a particular “stomach heat and dampness” pattern from Traditional Chinese Medicine. The goal is to see which method better helps children with certain weight and blood-sugar or cholesterol risks.
ShanghaiAges 6–18 - NCT05856136RecruitingPhase 4
Study how opioid exposure affects diaphragm muscle function
This study looks at whether receiving opioids for pain during lower-leg surgery changes how well the diaphragm muscle (the main breathing muscle) works afterward. It compares breathing muscle function in people who do and do not have certain lung conditions.
Rochester, MinnesotaAges 18 years+ - NCT05874297Recruiting
Online nutrition coaching to help breast cancer chemo side effects
This study tests whether an online nutrition education program can reduce or lessen side effects from chemotherapy in people with breast cancer. If you qualify, you would complete online lessons and questionnaires through the rest of your chemotherapy.
Seattle, WashingtonAges 18 years+ - NCT04525716Recruiting
Study of how COVID-19 affected surgery patients
This study looks at how the COVID-19 pandemic changed outcomes and experiences for people who had surgery in Stockholm during the study period. It may help hospitals prepare better plans for patients during future outbreaks.
StockholmAges Any age - NCT00353483Recruiting
Testing treatment before or after breast cancer surgery
This trial studies how different cancer treatments given before or after standard therapy affect breast cancer cells in the blood and bone marrow. It may help doctors better understand how treatments work throughout the body, not just where the tumor is.
St Louis, MissouriAges 18 years+ - NCT05826743Recruiting
Check a new alternative to ileostomy after bowel surgery
This trial tests whether a device called COLO-BT can be a safer, effective alternative to an ileostomy (a temporary or longer-term opening from the intestine to the skin). It’s for certain adults having a bowel connection low in the pelvis, where leak risk matters.
Buffalo, New YorkAges 19–80 - NCT05820672Recruiting
Study of people using Skytrofa in the United States
This study looks at how well and how safely Skytrofa (lonapegsomatropin) works for real-world patients in the U.S. It mainly gathers information from routine care to help doctors understand expected benefits and side effects.
Phoenix, ArizonaAges Any age - NCT05113017Recruiting
Radiation after surgery for early lung cancer you can’t remove
This trial studies whether a focused form of radiation called SBRT can safely treat remaining lung cancer nodules after surgery. It may help people whose leftover tumor spots can’t be removed by more surgery, aiming to control the cancer while limiting side effects.
Changsha, HunanAges 18–75 - NCT05819801Recruiting
Testing how fasting affects outcomes in certain hand procedures
This study looks at whether fasting before a specific hand surgery done with local numbing medicine (and without a tourniquet) changes patient outcomes. It may help explain how to prepare for this type of procedure and what fasting rules are safest.
Orange, CaliforniaAges 18 years+ - NCT05838508Recruiting
Exercise timing study to improve heart and body health
This trial studies how different exercise patterns affect heart-related and metabolic health (things like blood sugar and cholesterol). You may be asked to follow a specific exercise schedule and related testing if you’re healthy enough to exercise safely.
Boston, MassachusettsAges 18–45 - NCT05823727Recruiting
Collagen supplement study before and after knee replacement
This study tests whether taking collagen peptides can improve how knee tissues heal and remodel after total knee arthroplasty (knee replacement). It also looks at functional recovery and wound healing, especially during the physical therapy period in Little Rock.
Little Rock, ArkansasAges 50–75 - NCT05839535RecruitingPhase 2
Baduanjin plus brain stimulation for knee osteoarthritis pain
This Phase 2 study tests whether combining Baduanjin (a guided mind-body movement) with neuromodulation can improve knee osteoarthritis symptoms and function. It compares education-based stretching/control and uses MRI scanning as part of the research.
Charlestown, MassachusettsAges 45–75 - NCT05832489RecruitingPhase 3
EEG-MRI test of methylphenidate in adult attention symptoms
This Phase 3 study tests how methylphenidate affects brain signals and attention in adults with ADHD, and in adults with mood-related attention problems. It also includes healthy volunteers to compare brain responses during brain scanning.
StrasbourgAges 18–60 - NCT05814055RecruitingPhase 2
Kava to help quit smoking by easing stress and sleep issues
This Phase 2 study tests whether kava can help people quit smoking, especially by reducing stress and improving sleep during tobacco abstinence. You may be offered kava as part of a quitting support plan and monitored for safety and progress.
Gainesville, FloridaAges 21–75 - NCT05835037RecruitingPhase 4
Zinc supplement study for prediabetes blood sugar control
This study tests whether taking zinc can improve how your body controls blood sugar in people with prediabetes. It may help slow the progression toward type 2 diabetes, but you would need to meet specific health and medication criteria.
Lancaster, PennsylvaniaAges 18–80 - NCT05846438Recruiting
Drain care check after breast implant surgery
This study looks at whether a specific way of caring for surgical drains can lower infection rates and improve quality of life after breast reconstruction with a tissue expander. You may be asked to follow the study’s drain-care steps during recovery.
Columbia, MissouriAges 18–100 - NCT05834803Recruiting
Stenting narrowed kidney artery to help high-risk patients
This trial studies whether placing a small stent in a severely narrowed kidney artery can improve outcomes for people with high-risk, artery-hardening kidney blood-flow problems. It focuses on people whose high blood pressure or kidney function has been getting worse despite multiple medications.
Aarhus NAges 18 years+
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 6,378 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.