Clinical trials
Replacement clinical trials
Below are recruiting replacement clinical trials, each written for real people, not researchers. We’re tracking 502 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05706155Recruiting
Switching some animal protein to plant protein for Type 2 diabetes
This study tests whether replacing part of your animal protein with plant-based protein can improve Type 2 diabetes control. It may help your blood sugar and weight management without changing everything about your diet.
Porto Alegre, Rio Grande do SulAges 18–65 - NCT05722561RecruitingPhase 2
E-cigarettes to reduce smoking in opioid use disorder
This Phase 2 study tests whether e-cigarettes can help people who use opioids (and also smoke cigarettes) cut down on combustible cigarette smoking. It looks at whether switching to e-cigarettes for “harm reduction” is safe and helps you smoke fewer cigarettes without requiring you to quit completely.
New York, New YorkAges 21–75 - NCT05723588RecruitingPhase 2
TMS brain stimulation to help veterans quit smoking with PTSD
This Phase 2 study tests whether targeted brain stimulation (TMS) can improve smoking quit outcomes in Veterans who also have PTSD. It also uses brain imaging (MRI) to understand what changes in the brain may help people quit.
Durham, North CarolinaAges 18–75 - NCT05738330Recruiting
Symptom reporting during hemodialysis care
This study looks at how well a new phone or computer system can help people on hemodialysis report their symptoms. It may improve symptom tracking so clinics can better understand and respond to what you feel during treatment.
Waltham, MassachusettsAges 18 years+ - NCT05779787Recruiting
Registry after aortic valve procedure to guide future care
This registry is for people with severe, symptomatic aortic valve narrowing who are planning a TAVI procedure (a less invasive valve replacement). It aims to better track and improve how patients do after the valve is replaced, based on how the procedure is planned and performed.
Milan, LombardyAges 18 years+ - NCT05788770Recruiting
CT scan and computer planning before TAVR valve replacement
This study uses a CT scan plus a personalized computer model to plan a less invasive valve replacement (TAVR). It may help doctors better prepare for the procedure using simulation before your valve is placed.
ViennaAges 18 years+ - NCT05792189Recruiting
Knee fracture surgery: plates vs knee replacement for older adults
This trial compares two ways to treat certain lower-thigh (distal femur) fractures near the knee: using plates/screws or doing a knee replacement. It aims to see which option works better for recovery and long-term outcomes.
Gainesville, FloridaAges 55–100 - NCT05799222Recruiting
Nutrition program for obesity and diabetes risk
This trial tests a medically guided nutrition program to help improve weight and blood sugar in adults with obesity or early diabetes risk. It specifically targets people who meet income guidelines and don’t already use most diabetes or anti-obesity medicines.
Boston, MassachusettsAges 18–65 - NCT05800600RecruitingPhase 2
Iron treatment to lower anemia during pre-surgery chemotherapy
This trial tests whether giving iron (iron sucrose) can reduce anemia during chemotherapy before curative surgery. It may help you feel better and have smoother treatment by improving low blood counts caused by iron deficiency.
Philadelphia, PennsylvaniaAges 18 years+ - NCT05809856Recruiting
Check if a patient’s own valve tissue can be safely used
This study tests whether a new type of heart valve made from your own tissue (an “autologous” valve) can be placed through a catheter safely in adults with leaking and pressure-related problems in the lung heart valve area. If it works well, it could offer a safer option for people who need treatment for pulmonary valve problems.
Berlin, State of BerlinAges 18–80 - NCT05817539Recruiting
Early circulation-focused care during kidney dialysis in ICU
This trial looks at whether starting dialysis-related care early, aimed at improving blood flow to tissues, can help people in the ICU who have sudden kidney failure. It may help reduce problems related to poor tissue circulation, but it is very specific about ICU illness and current treatments.
AjaccioAges 18 years+ - NCT05842538Recruiting
Robotic surgery for total knee replacement in arthritis
This trial studies whether robotic-assisted surgery can improve or standardize outcomes for people getting a total knee replacement for severe arthritis. It may help by using a robot to assist during the knee operation, but you must meet specific knee and health criteria.
GothenburgAges 18–80 - NCT05855330RecruitingPhase 2
Arginine treatment for kids hospitalized with COVID-19
This Phase 2 trial tests whether replacing the body’s arginine (an amino acid) can improve outcomes for children and young adults hospitalized with COVID-19. It may help the immune response, but you must meet several safety criteria to join.
Atlanta, GeorgiaAges 3–21 - NCT05864456Recruiting
Study testing a new valve delivered through a blood vessel
This trial studies Prizvalve Pro™, a new transcatheter (catheter-based) aortic valve replacement, for people with severe aortic valve narrowing who are too high-risk for standard surgery. It may help your heart work better and improve symptoms by replacing the failing valve without open-heart surgery.
ShanghaiAges 65 years+ - NCT05877300RecruitingPhase 1
Test a new esophagus implant to rebuild a short esophagus segment
This Phase 1 study tests the safety and feasibility of a new esophagus implant for people who need only a short (about 6 cm or less) section of their esophagus rebuilt after serious injury or scarring. If it does not work, you must be willing to have a planned “rescue” surgery later.
Los Angeles, CaliforniaAges 18 years+ - NCT05966519Recruiting
Study testing flexible planning for knee replacement with ROSA
This study looks at how flexible pre-op planning can be when you get a total knee replacement using the ROSA system. It may help doctors fine-tune surgery planning while keeping outcomes safe and effective.
Fukuoka, FukuokaAges 20 years+ - NCT06000943Recruiting
Bleeding and clot risk after heart valve procedure
This study looks at patients who had a TAVR procedure (a new valve put in the heart) to understand their risk of bleeding or clots over the next year. It tracks changes in blood thinner medications at 1 month, 90 days, and 1 year to help doctors personalize care.
AalstAges 18 years+ - NCT06009588Recruiting
Comparing Two Heart Valve Types for Aortic Stenosis with Aorta Dilation
This trial tests two types of artificial heart valves—one that expands on its own and one expanded with a balloon—in people with a widened upper aorta. The goal is to see which works better for your condition.
Beijing, Beijing MunicipalityAges 65 years+ - NCT06021288Recruiting
Standard vs. lower dose dialysis for kidney failure in intensive care
This trial compares the usual dose of continuous dialysis with a lower dose to see if a lower dose is just as safe and effective for critically ill patients with sudden kidney failure.
MünsterAges 18 years+ - NCT06032884Recruiting
Comparing two dialysis methods for severe kidney injury in ICU
This trial compares two ways to filter blood (intermittent hemodialysis and continuous renal replacement therapy) for patients in the intensive care unit with severe acute kidney injury. It aims to find which method works better for critically ill patients.
BobignyAges 18 years+ - NCT06087068RecruitingPhase 2
Thyroid hormone therapy after lobectomy for low-risk thyroid cancer
This trial is testing whether thyroid hormone replacement after surgery is safe for people with low-risk papillary thyroid cancer. It may help maintain normal hormone levels after part of the thyroid is removed.
Beijing, Beijing MunicipalityAges 1.5 years–70 years - NCT06122727Recruiting
Custom vs standard knee replacement for better fit
This trial compares custom-made knee replacements (built to fit your unique knee shape) with standard, off-the-shelf knee replacements. It aims to see if a custom implant leads to better function and satisfaction after surgery.
BolognaAges 40–70 - NCT06136429Recruiting
A study of a new valve device for severe aortic stenosis
This trial tests a new valve device placed through a small tube (catheter) to treat severe aortic stenosis, a condition where the aortic valve is narrowed and doesn't open fully. It's for patients who cannot have traditional open-heart surgery.
BeijingAges 70 years+ - NCT06173778RecruitingPhase 2
Semaglutide for weight management after quitting smoking
This study tests whether the drug semaglutide (often used for weight loss) can help people who quit smoking avoid gaining weight. It's for people who are overweight or have weight-related health issues and want to stop smoking.
Austin, TexasAges 18–75
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Common questions
- Are there clinical trials for replacement?
- Yes. Clin2 currently lists 502 recruiting replacement 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 replacement 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 replacement 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.