Clinical trials
Preoperative clinical trials
Below are recruiting preoperative clinical trials, each written for real people, not researchers. We’re tracking 386 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07488468Recruiting
Shortening fasting before planned surgery
This trial tests a program to reduce how long patients must fast before elective surgery. Shorter fasting may make patients more comfortable and could help recovery.
GiessenAges Any age - NCT07519057Recruiting
Carbohydrate drink before liver transplant surgery
This study tests whether drinking a carbohydrate solution before planned liver transplant surgery helps patients recover better afterward. Researchers believe it may reduce complications and improve healing.
WarsawAges 18 years+ - NCT07533669Recruiting
Sensory room visit before kidney transplant surgery
This study tests whether spending time in a calming sensory room before kidney transplant surgery helps reduce pain, anxiety, and sleep problems. You would visit a specially designed room with soothing sights, sounds, and textures before your operation.
SakaryaAges 18 years+ - NCT07547774Recruiting
Sleep Quality Before Breast Surgery and Recovery Outcomes
This study examines how well you sleep before breast cancer surgery and whether it affects your recovery afterward. Researchers will ask about your sleep habits and track your healing to understand the connection.
Ankara, YenimahalleAges 18–70 - NCT07633483Recruiting
Anxiety and Frailty in Older Adults Having Hip Replacement
This study watches how nervous patients feel before hip replacement surgery and how that connects to their overall strength and ability to bounce back. Researchers want to understand whether anxiety levels and frailty affect each other in older adults.
Istanbul, IstanbulAges 65 years+ - NCT07640230Recruiting
Cartoons and games to ease surgery anxiety in children
This study tests whether watching cartoons or playing mobile games can help reduce anxiety and fear in children ages 7–12 who need surgery for appendicitis (an inflamed appendix). The goal is to find simple, non-medication ways to calm children before their operation.
AnkaraAges 7–12 - NCT07651462Recruiting
Fasting Before Hip Surgery and Gut Health
This study tests whether fasting for 20 days before hip replacement surgery changes your gut bacteria in ways that might help your recovery. Researchers want to understand if this dietary approach affects how well you heal after the operation.
Berlin, State of BerlinAges 18–75 - NCT07322497Recruiting
Phone app vs. supervised exercise before ACL surgery
This study compares two ways to exercise before ACL surgery: using a video app on your phone versus doing exercises with a physical therapist. The goal is to see which approach helps you recover better.
Istanbul, KartalAges 18–45 - NCT07589127Recruiting
Nerve Block for Pain Relief During Knee Replacement
This study tests whether blocking a specific nerve in the knee can reduce pain and improve recovery after total knee replacement surgery. You would receive this nerve block alongside standard anesthesia to see if it helps you need fewer pain medications afterward.
Hjelset, Møre og RomsdalAges 18–80 - NCT06680297Recruiting
Drinking carbs before scoliosis surgery
This trial tests if giving teenagers a carbohydrate drink before scoliosis surgery helps them recover faster and more safely. It looks at how the drink affects things like nausea, pain, and how quickly they can get back to normal.
Kuala Lumpur, Kuala LumpurAges 10–19 - NCT07482345Recruiting
Fasting strategies and anxiety in children having surgery
This study looks at whether different fasting instructions before surgery can help children be more comfortable and less anxious. It involves children having groin or penis surgery and will check their stomach with ultrasound to see how fasting affects them.
Bursa, BursaAges 2–12 - NCT07727759Recruiting
CT scan to predict liver failure after surgery
This trial uses special CT scans to create a map of your liver's blood vessels before surgery. The goal is to predict if your liver might fail after part of it is removed, so doctors can better plan your care.
Minya, Minya GovernorateAges 18 years+ - NCT05743673Recruiting
SHAPE test to assess pre-surgery heart and lung risk
This trial studies a quick physical test (called the SHAPE test) given before surgery to help predict your risk of complications. It may help doctors choose safer care and monitoring based on your results.
New Haven, ConnecticutAges 60 years+ - NCT05520593Recruiting
Drinking plan before surgery to support same-day joint replacement
This trial tests whether a specific pre-surgery oral drinking (hydration) plan can help people feel and recover better after outpatient (same-day) hip or knee replacement surgery. It may help support safe same-day discharge for the right patients.
New York, New YorkAges 18–75 - NCT07760545Recruiting
Memory screening by video before surgery
This study tests whether doing a quick memory and thinking check over video call is as reliable as doing it in person. You would take part before your scheduled surgery to help improve how cognitive health is assessed.
Vancouver, British ColumbiaAges 65 years+ - NCT04963751Recruiting
Pre-surgery counseling for teens having abdominal surgery
This trial offers counseling before surgery for children and teens to help them prepare and understand what to expect. It is designed for people having abdominal surgery under an ERAS pathway, which is a structured plan to support safer, smoother recovery.
Aurora, ColoradoAges 9–17 - NCT06818942Recruiting
Predicting difficult keyhole appendix surgery
This trial looks at how to predict if a laparoscopic appendectomy (keyhole surgery to remove the appendix) will be more difficult. It uses information from before surgery to help doctors and patients prepare.
Shanghai, Shanghai MunicipalityAges Any age - NCT06808945Recruiting
Prehabilitation program for liver transplant patients
This study tests a pre-surgery exercise and nutrition program (prehabilitation) for people waiting for a liver transplant. It aims to see if getting stronger before surgery can help you recover better after the transplant.
RotterdamAges 18 years+ - NCT06543615Enrolling by invitation
Ultrasound stomach check before surgery in sleeve gastrectomy patients
This study uses ultrasound to measure how much stomach content remains after fasting in people who have had sleeve gastrectomy surgery. It aims to understand if the standard 8-hour fasting period is enough for this group before other surgeries.
Cairo, Cairo GovernorateAges 21–45 - NCT06794697Recruiting
Does admission day affect anxiety before heart surgery?
This study looks at whether the day you are admitted to the hospital for planned heart surgery affects your anxiety levels before the operation. The goal is to help hospitals schedule admissions in a way that lowers stress for patients.
RennesAges 18 years+ - NCT06015711Recruiting
Does a pre-surgery painkiller reduce strong IV pain meds needed?
This trial tests if taking Maxigesic® (a combination of two pain relievers) before surgery can lower the amount of a strong IV pain medicine called remifentanil needed during anesthesia. It may help patients have a smoother recovery with fewer side effects.
Suwon, Gyeonggi-doAges 19–60 - NCT05367609Recruiting
Personalized pain plan for kids getting spine fusion surgery
This trial tests a personalized plan to manage pain around the time of pediatric posterior-lateral spinal fusion surgery. It aims to improve comfort and reduce the chance of pain or opioid problems after surgery by tailoring pain medicines to the child.
San Francisco, CaliforniaAges 10–21 - NCT05355909Recruiting
High-intensity pre-surgery training before major belly surgery
This trial tests whether a structured, high-activity fitness program before elective abdominal surgery can help you prepare and recover better. It’s meant for people considered at moderate to high surgical risk who can safely do pre-op exercise.
Innsbruck, TyrolAges 18–99 - NCT05092126Recruiting
Testing a pre-surgery breathing and heart check tool
This study is developing and checking how well a pre-surgery evaluation system (using objective body measurements) can predict and help around the time of anesthesia and surgery. You might be asked to complete a clinic screening and provide consent, as long as your results fit their safety and screening thresholds.
Durham, North CarolinaAges 18 years+
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Common questions
- Are there clinical trials for preoperative?
- Yes. Clin2 currently lists 386 recruiting preoperative 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 preoperative 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 preoperative 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.