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
- NCT04644094Recruiting
Dexamethasone for heart function after very early birth
This study looks at how giving a steroid medicine (dexamethasone) after very early birth affects the baby’s heart function. It may help doctors better understand risks and benefits for babies who need treatment for serious lung problems.
Montreal, QuebecAges 1 minute+ - NCT04644042Recruiting
Surgery for shoulder pain after non-surgical treatment fails
This trial looks at whether arthroscopic subacromial decompression surgery helps people whose “impingement” shoulder pain hasn’t improved after supervised exercises and an injection. It may help if your symptoms match their specific non-responder pattern and you can complete rehab visits.
Hvidovre, DenmarkAges 18–99 - NCT04646707Recruiting
Nerve block to reduce opioid use after neck spine surgery
This trial tests whether a targeted back/neck numbing injection (an erector spinae block) can help reduce the amount of opioid pain medicine needed after posterior cervical spine surgery. It also aims to support an “enhanced recovery” pathway so patients may recover more comfortably and potentially faster.
Toronto, OntarioAges 18–80 - NCT04650880Recruiting
Vitamin D study for irregular periods from PCOS
This trial studies whether taking vitamin D can improve ovulation (the release of an egg) in people with PCOS who have long, irregular menstrual cycles. It may help some participants have more regular ovulation and cycle timing, but you would be monitored with vaginal ultrasound and blood tests.
Hong KongAges 18–40 - NCT04659343Recruiting
Testing tumor care planning for metastatic kidney cancer
This trial studies a way to plan and manage care for people with metastatic renal cell carcinoma (kidney cancer that has spread). It may help doctors coordinate treatment more effectively to improve outcomes.
Aarhus, DanmarkAges 18 years+ - NCT04661449Recruiting
Lifestyle program for babies born larger than expected
This trial looks at whether a structured lifestyle program improves health and development outcomes for babies who were born larger than expected (large-for-gestational-age). If you qualify, the study may guide caregiver and family habits to support your child’s early outcomes.
Shanghai, Shanghai MunicipalityAges 1 day–1 month - NCT04662723RecruitingPhase 4
Personalized treatment for IgA kidney disease
This trial tests whether choosing treatment based on your personal kidney findings can improve outcomes in adults with IgA nephropathy (IgAN). It may help by matching therapy to the type and severity of kidney damage seen on biopsy.
Bari, BAAges 18 years+ - NCT04664491Recruiting
Program to reduce COPD flare-ups with standardized care
This study tests whether a structured care program for COPD can lower how often your symptoms flare up. It may help by improving everyday management and preventing future worsening.
Beijing, Beijing MunicipalityAges 40 years+ - NCT04671771Recruiting
Testing a new graft for hemodialysis access in kidney failure
This study tests whether an “AV graft” implant works safely and well for people with end-stage kidney disease who need hemodialysis. It may help your dialysis access last and work better, compared with current expectations for AV grafts.
Phoenix, ArizonaAges 18–90 - NCT04685356Recruiting
Testing IBAIP for brain development in very preterm babies
This study looks at whether the IBAIP program can improve neurodevelopment (how the brain grows and works) in babies born very early. Babies are included only if they have a normal early neurological exam after being “corrected for prematurity.”
AngersAges 6 months–7 months - NCT04696523RecruitingPhase 2
Xenon gas for brain injury after a ruptured brain aneurysm
This Phase 2 study tests whether xenon gas can reduce brain injury after an aneurysmal subarachnoid hemorrhage (a bleeding caused by a brain aneurysm). It aims to help people who are very sick right after the bleeding by improving brain function outcomes.
Helsinki, HelsinkiAges 18 years+ - NCT04699279Recruiting
Statin after aortic surgery to protect heart and organs
This trial tests whether taking a cholesterol-lowering medicine (a statin) after certain aortic surgeries can reduce harmful changes in the heart and other organs. You might benefit by lowering the risk of ongoing damage after your acute aortic condition and surgery.
Guangzhou, GuangdongAges 18–85 - NCT04701749Recruiting
Stopping blood thinners with a left-atrial device in bleeding risk
This trial studies whether it’s safe to temporarily stop blood-thinning medicine in people with long-term atrial fibrillation who have bleeding from a radiation-damaged bladder. It uses a procedure with a device placed in the left atrium to help lower stroke risk while reducing bleeding risk.
Clermont-FerrandAges 18 years+ - NCT04702321Recruiting
Study genetic risks for childhood cancer complications in Switzerland
This study looks at genetic factors to understand why some children who had cancer develop later complications. It uses stored samples and information from a Swiss biobank to help researchers identify higher-risk children.
GenevaAges Up to 21 years - NCT04704271RecruitingPhase 1
Study on THC effects in people with past cannabis use
This Phase 1 study looks at how THC (the main mind-altering ingredient in cannabis) affects healthy volunteers shortly after use. It focuses on differences between people and includes those who have used cannabis before.
West Haven, ConnecticutAges 18–55 - NCT04704687RecruitingPhase 3
tDCS brain stimulation for children with ADHD symptoms
This Phase 3 study tests whether a non-painful brain stimulation method called tDCS can improve ADHD symptoms in children, and whether it helps over the long term. Your child may be able to join if they are 7–14 with a confirmed ADHD diagnosis and meet symptom and testing scores.
AmiensAges 7–14 - NCT04708808Recruiting
Music therapy during ultrasound-guided abortion procedure
This trial tests whether listening to music during an ultrasound-guided vacuum aspiration procedure can help make the procedure more comfortable or less stressful. It focuses on people having first-trimester pregnancy termination under local anesthesia.
Hong Kong, ShatinAges 18 years+ - NCT04712656Recruiting
CPAP treatment for sleep apnea and blood pressure changes
This study tests whether using CPAP (a breathing machine) for obstructive sleep apnea can improve blood pressure and heartbeat timing. You’ll have blood pressure checked at the start and again after 6 months, along with a sleep evaluation to confirm eligibility.
Columbus, OhioAges 30–75 - NCT04714463Recruiting
Study on thoughts and body image during breast reconstruction
This study looks at how people’s expectations and body image feelings may affect experiences after breast reconstruction after mastectomy. It may help doctors understand what kinds of support or counseling could make recovery feel better.
GothenburgAges 18 years+ - NCT04716140Recruiting
Study of outcomes after bunion surgery for cartilage damage
This study looks at how well bunion (hallux valgus) surgery works, especially when there is cartilage damage in the joint. The goal is to see what factors predict better or worse outcomes after treatment.
GhentAges 30–60 - NCT04728516RecruitingPhase 4
Eradication treatment versus acid pills to prevent GI bleeding
This trial compares a “dual eradication therapy” (to get rid of H. pylori in the stomach) versus usual acid-reducing pills (PPIs) to lower the risk of gastrointestinal bleeding in people with recent heart artery disease treated with a stent. It may help by reducing stomach infection-related bleeding while you continue needed heart medicines.
Bozhou, AnhuiAges 18 years+ - NCT04732273Recruiting
Study tracking long-term health after childhood cancer
This study follows people in Switzerland who finished treatment for childhood or teen cancer to learn about their long-term health. It may help doctors better understand late effects and follow-up needs after cancer treatment.
BaselAges Any age - NCT04748809Recruiting
Diet trial for rheumatoid arthritis inflammation
This study tests whether an anti-inflammatory diet can help people with rheumatoid arthritis by lowering inflammation and disease activity. You may join if your symptoms are currently mild to moderate and you haven’t recently changed medications or your treatment plan.
La Jolla, CaliforniaAges 18 years+ - NCT04755764Recruiting
Compare blood-pressure medicines in early pregnancy
This trial tests how three common blood-pressure medicines (labetalol, atenolol, and nifedipine) affect blood flow in early pregnancy. It may help doctors choose the safest, most effective option for pregnant people with high blood pressure.
Huntington, West VirginiaAges 18–45
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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.