Clinical trials
Replacement clinical trials
Below are recruiting replacement clinical trials, each written for real people, not researchers. We’re tracking 507 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- 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 - NCT05736549RecruitingPhase 2
Tested stronger pain-blocking shot for knee replacement surgery
This Phase 2 study compares two ways to reduce pain after total knee replacement (TKA): a steroid-enhanced nerve block versus a numbing shot called Exparel. It aims to see which option improves comfort and recovery after surgery done with spinal anesthesia.
New Haven, ConnecticutAges 18 years+ - 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 - NCT05672836RecruitingPhase 4
Enavogliflozin after TAVR for heart narrowing with mild heart weakness
This trial tests enavogliflozin (a diabetes medication that may help the heart) in people who have had a TAVR procedure for severe aortic stenosis. It looks at whether the medicine can improve outcomes for people with symptoms and mildly reduced or preserved pumping function.
Bucheon-siAges 19 years+ - NCT04167033Recruiting
Checking heart rhythm timing in women with premature ovarian insufficiency
This study measures how quickly the heart “recharges” between beats (often shown as QT timing). It compares women with premature ovarian insufficiency to healthy women to understand whether ovarian insufficiency is linked to heart rhythm differences.
BordeauxAges 18–40 - NCT05628389Recruiting
Phone-based help to quit smoking or waterpipe
This study offers phone support to help people quit smoking cigarettes and/or waterpipe. It may help you build a quit plan and get regular encouragement and coaching from a distance.
BeirutAges 18 years+ - NCT05616884Enrolling by invitation
Cemented vs cementless partial knee replacement study
This study compares two ways of fixing a partial knee replacement: cemented or cementless. It may help doctors learn which method works better for patients with certain types of knee bone.
Alexandria, VirginiaAges 18–85 - NCT05603026Recruiting
MRI study for people getting a valve replacement
This study uses MRI (a type of scan) in people who are scheduled for a catheter-based aortic valve replacement through the groin. It aims to see how well MRI can work for these patients and potentially improve care planning around the procedure.
Cleveland, OhioAges 18–105 - NCT05508360Recruiting
Testing an artificial spacer implant for one-level low back pain
This study tests whether inserting a small artificial implant into a single painful disc can reduce long-term low back pain and disability. It’s for people who tried non-surgical treatments for at least 6 months but still have significant symptoms from degenerative disc disease.
Medellín, AntioquiaAges 22 years+ - NCT05513872RecruitingPhase 1/Phase 2
Help to quit smoking using nicotine replacement while not quitting yet
This early-stage study tests ways to help adults who currently smoke daily start making progress toward quitting (or changing smoking habits) over the next 6 months. You may use nicotine replacement, and the study checks safety for people who can use it.
Chicago, IllinoisAges 18 years+ - NCT05487053Recruiting
Nerve block type test after knee replacement
This study compares two pain-control methods for the leg after a total knee replacement: a single injection versus a continuous nerve-block catheter. It aims to see which option helps people recover and do rehab better.
MoscowAges 18 years+ - NCT05496998Recruiting
Heart valve replacement using a catheter for leaking mitral valve
This trial studies a catheter-based procedure to replace the mitral valve in people with severe (or specific moderate) mitral valve leakage that causes symptoms. It may help by reducing leaking and related symptoms when standard surgery or less invasive fixes aren’t suitable for you.
AarhusAges 18 years+ - NCT05491005Recruiting
eHealth program to help type 2 diabetes go into remission
This trial tests an online (eHealth) program to help people with early type 2 diabetes reach diabetes remission. It may help by supporting lifestyle and diabetes management with less in-person care.
JönköpingAges 20–70 - NCT05488093Recruiting
Testing knee movement in severe knee arthritis before replacement surgery
This study checks how well your knee moves and how that relates to pain and function in people with severe knee arthritis who are about to get total knee replacement. It may help doctors better plan and evaluate treatment before surgery.
MontpellierAges 60 years+ - NCT04146376Recruiting
Study of medicines for Von Willebrand disease during pregnancy
This study looks at how well a Von Willebrand disease treatment plan works during pregnancy, and whether some patients need extra “adjusting” of medicine. It may help prevent bleeding problems by matching treatment to each person’s lab results later in pregnancy.
Aurora, ColoradoAges 18 years+ - NCT05399537RecruitingPhase 3
Testing citrate fluid safety during kidney filtration (CRRT)
This Phase 3 study checks whether Prismocitrate 18 is safe for adults who need a kidney filtration treatment called CRRT. It is mainly for people who cannot safely use heparin (a common blood thinner) due to bleeding risk.
Birmingham, AlabamaAges 18 years+ - NCT04281056Recruiting
Tooth loss and dentures: taste and food preferences
This study looks at how losing teeth and wearing dentures affects your mouth sensations and your food choices. It compares people who are fully without teeth (and use dentures) with people who still have their natural teeth.
ParisAges 18–79 - NCT05357378Recruiting
Hip replacement study using a reverse hip implant
This trial looks at how safe and well a specific “reverse” hip implant works in people who need their first total hip replacement. It may help by improving pain and hip function, while closely tracking safety during and after surgery.
Miami, FloridaAges 50–75 - NCT05355272RecruitingPhase 2
Growth hormone treatment for Gulf War illness with low growth hormone
This Phase 2 study tests whether replacing growth hormone can improve symptoms in veterans with Gulf War Illness and adult growth hormone deficiency. It also checks that the treatment is safe for people with stable medications and hormone regimens.
Houston, TexasAges 18–64 - NCT05283356RecruitingPhase 4
Ticagrelor or aspirin after heart valve replacement
This trial compares two blood thinners (ticagrelor and aspirin) to see which one works better at preventing blood clots after a less-invasive heart valve replacement (TAVI). It is for people with severe aortic stenosis who also have diabetes, heart disease, or artery disease.
Vigo, PontevedraAges 18 years+ - NCT05279092RecruitingPhase 2
Testing two pain-control injections for knee replacement surgery
This Phase 2 study compares two ways of reducing nerve pain after knee replacement surgery (total knee arthroplasty). It looks at whether steroid-enhanced pain medicine works better than a different numbing injection to improve recovery and comfort.
New Haven, ConnecticutAges 18 years+ - NCT05294367RecruitingEarly Phase 1
Magnesium by diet or skin lotion for people with lymphoma
This early study tests whether replacing magnesium—either by diet or a topical (skin) supplement—can improve safety or other health measures in people with lymphoma. It focuses on people who have a slightly low magnesium level and checks blood magnesium repeatedly during the study.
Rochester, MinnesotaAges 18 years+ - NCT05290818Recruiting
Robotic vs standard knee replacement for inner-joint wear
This trial compares robotic-assisted knee replacement with the usual (non-robotic) approach for people with severe arthritis on the inner (medial) side of the knee. It aims to see which method works better for pain and function while matching the right knee anatomy for certain implant types.
Edinburgh, LothianAges 50–75 - NCT05161078Enrolling by invitation
Studies CARPEDIEM care for newborns and babies in participating hospitals
This trial looks at how to improve outcomes for newborns and infants who receive CARPEDIEM as part of routine hospital care. It aims to see whether an interdisciplinary team approach can make treatment safer and more effective.
Palo Alto, CaliforniaAges Any age
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Common questions
- Are there clinical trials for replacement?
- Yes. Clin2 currently lists 507 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.