Clinical trials
Preoperative clinical trials
Below are recruiting preoperative clinical trials, each written for real people, not researchers. We’re tracking 387 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07474194RecruitingPhase 4
Cleaning the vagina before c-section to prevent infection
This trial compares two ways to clean the vagina before a planned cesarean section to see which one better prevents infections after surgery. It may help you if you are having a planned c-section.
Banī SuwayfAges 18–40 - NCT07500519Recruiting
Shock Indexes and Low Blood Pressure After Spinal for Cesarean
This study looks at whether certain simple measurements (called shock indexes) taken before your cesarean delivery can help predict if you might have a drop in blood pressure after you get spinal anesthesia. The goal is to help doctors take better care of moms like you during the surgery.
IstanbulAges 18 years+ - NCT07501026RecruitingPhase 2
Testing a new radiation method before sarcoma surgery
This trial tests a new type of radiation called spatially fractionated radiation therapy (SFRT) given before surgery for large soft tissue sarcomas in the arm, leg, or trunk. The goal is to see if it helps shrink the tumor and improve treatment outcomes.
Hangzhou, ZhejiangAges 18–75 - NCT07512752Recruiting
Preoperative Stress and Confusion After Orthopedic Surgery
This study examines how anxiety before major joint surgery (hip or knee) affects confusion and delirium after surgery in adults 65 and older. Understanding this connection may help doctors better manage patients' emotional and mental health around surgery.
ElâzığAges 65 years+ - NCT07517458Recruiting
Understanding anxiety before cancer surgery in hospitalized patients
This study looks at how anxious cancer patients feel before surgery and tests a new way to measure that anxiety. It's observational—meaning researchers watch and listen rather than give treatments—to help doctors better support patients emotionally before procedures.
Aviano, PordenoneAges 18 years+ - NCT07529301Recruiting
Lung Function Tests Before Surgery to Predict Recovery
This study measures your lung function and physical fitness before surgery to see if these tests can predict how quickly you'll recover. The researchers want to understand which patients might have an easier or harder recovery after their operation.
MalatyaAges 18–80 - NCT07538648RecruitingPhase 1
Imaging Dye for Surgery to Find Solid Tumors
This study tests a new injectable dye (NC527-X) that helps surgeons see tumors better during surgery. The dye glows under special light, making it easier to find and remove cancer tissue completely.
Hangzhou, ZhejiangAges 18 years+ - NCT07551375Recruiting
Fast MRI scan to diagnose gallbladder inflammation
This study tests whether a new type of quick MRI scan can reliably detect acute cholecystitis—sudden inflammation of the gallbladder. If it works well, doctors may be able to diagnose this condition faster and help patients get treatment sooner.
Beijing, Beijing MunicipalityAges 18 years+ - NCT07565116Recruiting
Numbing Nose Spray vs. Calming Liquid Before Pediatric Surgery
This trial compares two safe, common ways to help children relax before surgery: a medicine sprayed in the nose versus a medicine given by mouth. The goal is to see which one works better and is easier for kids.
Diyarbakır, Outside of the USAges 2–10 - NCT07581691Recruiting
Ultrasound Stomach Checks Before Surgery in Children
This study tests whether ultrasound scans of the stomach before surgery help keep children safe during anesthesia. Researchers will measure how full the stomach is to make sure children are ready for surgery.
KayseriAges birth–18 years - NCT07588178Recruiting
Sleep Problems Before Heart Surgery: Study on Recovery
This research examines how sleep issues before heart surgery may affect how well patients recover afterward. Researchers will study blood markers and chemical changes to better understand this connection and potentially improve surgical outcomes.
Beijing, Beijing MunicipalityAges 18–80 - NCT07609329Recruiting
Nutritional Support Before Sarcoma Surgery
This study tests whether special nutritional supplements given before surgery for bone or soft tissue sarcoma (a type of cancer) can help your body heal better and recover faster. You'll take oral supplements for at least a week before your planned surgery.
BrnoAges Any age - NCT07656649Recruiting
Sip-til-Send: Clear liquids before surgery
This trial tests whether allowing patients to drink clear fluids (like water or juice) up until surgery starts is safe, instead of fasting for hours. It may help you feel more comfortable before your operation.
Bergen, VestlandAges 18 years+ - NCT07657845Recruiting
Long-term safety of a freezing nerve block before pectus surgery
This study checks the long-term safety of a procedure called cryoneurolysis, which uses cold to temporarily numb certain nerves before surgery to fix a sunken chest (pectus excavatum). It may be for people who already had this treatment.
Bergamo, BGAges 14 years+ - NCT07666074Recruiting
AI for predicting difficult airway in weight-loss surgery
This trial uses artificial intelligence (AI) to predict whether it will be difficult to place a breathing tube during weight-loss surgery. The goal is to help doctors plan safer anesthesia for patients with a high BMI.
Elâzığ, ElâzığAges 18–65 - NCT07587437Enrolling by invitation
Magnetic Camera Exam Before Weight-Loss Surgery
This study tests a swallowable magnetic camera to examine your stomach and small intestine before bariatric (weight-loss) surgery. The camera may help doctors plan your surgery and catch any issues beforehand.
Cleveland, OhioAges 18 years+ - NCT07362589Enrolling by invitation
Does pain education before knee or hip replacement help?
This study tests whether a special education session before knee or hip replacement surgery can help reduce anxiety, pain, and the need for pain medicine after surgery. If you are scheduled for joint replacement and can take part in a short learning session, you may be eligible.
Istanbul, KayişdağiAges 18 years+ - NCT07243106Enrolling by invitation
Ultrasound vs physical exam for predicting difficult airway
This trial compares using ultrasound of the airway versus standard physical exams to predict if placing a breathing tube will be difficult. It's for adults having elective surgery with a breathing tube.
Tokat Province, Tokat ProvinceAges 18–60 - NCT06985654Enrolling by invitationPhase 4
IV fluids before cystoscopy to prevent low blood pressure
This trial tests whether giving fluids through an IV before surgery can prevent blood pressure drops during anesthesia for cystoscopy. It may help patients have a safer and more stable procedure.
Columbia, MissouriAges 18 years+ - NCT06957678Enrolling by invitation
AI predicts lymph node spread in stomach cancer using scans and biopsy
This study uses artificial intelligence to predict whether stomach cancer has spread to nearby lymph nodes. By analyzing your CT/MRI scans and biopsy results before surgery, the AI may help doctors plan your treatment more precisely.
Shijiazhuang, None SelectedAges 18–80 - NCT06947096Enrolling by invitation
AI prediction of stomach cancer spread to lymph nodes
This study uses artificial intelligence to analyze your CT scan and predict whether stomach cancer has spread to lymph nodes behind your belly. The goal is to help doctors decide if you need more extensive surgery.
Shijiazhuang, None SelectedAges 18–80 - NCT06810232Enrolling by invitation
Health factors and longer hospital stay after endoscopy
This study looks at how general health factors (like age and other medical conditions) might affect how long you need to stay in the hospital after a routine stomach or bowel exam called an endoscopy. The goal is to understand which patients may need extra care so hospitals can plan better.
IstanbulAges 18 years+ - NCT06335862Enrolling by invitation
Surgery to stop windpipe collapse in babies with esophageal atresia
This trial tests a surgery called posterior tracheopexy to prevent the windpipe from collapsing in babies with esophageal atresia and tracheomalacia. It may help your child breathe more easily.
RotterdamAges 8 months+ - NCT06133933Enrolling by invitation
Shoulder replacement and pain medication study
This study looks at how your pain tolerance before a total shoulder replacement might relate to how much pain medication you need after surgery. The goal is to help doctors better manage pain medication after surgery.
Camden, New JerseyAges 18 years+
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Common questions
- Are there clinical trials for preoperative?
- Yes. Clin2 currently lists 387 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.