Clinical trials
Preoperative Fasting clinical trials
Below are recruiting preoperative fasting clinical trials, each written for real people, not researchers. We’re tracking 14 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 - NCT07022951Recruiting
Million Anesthesia Cases Study on Preoperative Fasting
This study looks at how fasting before anesthesia affects recovery for people having procedures. Researchers want to understand what happens to patients when they have nothing to eat or drink before anesthesia.
Boston, MassachusettsAges Any age - NCT07336160Recruiting
Nutrition before knee replacement surgery
This trial studies a special nutrition plan before knee replacement surgery to see if it helps recovery. Participants follow enhanced recovery guidelines for eating and drinking before their operation.
Istanbul, IstanbulAges 18 years+ - NCT07288281Recruiting
Preoperative Clear Fluid Fasting in Liver Transplant
This trial looks at how long before surgery patients waiting for a liver transplant can drink clear fluids, like water. The goal is to find a safer or more comfortable fasting time.
Warsaw, WarszawaAges 18 years+ - NCT05760339Recruiting
Intermittent fasting vs carbohydrate drinks before elective surgery
This study compares two ways of eating before planned (elective) orthopedic surgery: intermittent fasting versus carbohydrate drinks. It aims to see which approach is safer and works better around the time of surgery.
Amsterdam, North HollandAges 18 years+ - 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 - NCT06751043Recruiting
Testing if fasting before a procedure is needed in ICU patients
This trial tests whether not eating before a procedure (called preoperative fasting) is better than fasting in ICU patients who are already receiving tube feedings. It aims to find out if skipping the fast can help you without causing extra risks.
Palo Alto, CaliforniaAges 18 years+ - NCT07686029Recruiting
Maltodextrin drink before children's day surgery
This study looks at whether giving maltodextrin–a type of sugar normally found in some drinks–before surgery can help children recover faster and feel better after their operation. It’s part of a special plan called ERAS (Enhanced Recovery After Surgery) that aims to make surgery easier on the body.
Alessandria, PiedmontAges 3–17 - 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 - NCT07204795Recruiting
Carbohydrate drink before planned C-section
This study tests if drinking a sugary drink before a planned C-section improves recovery. It may help women feel better after surgery.
ErzurumAges 18 years+ - NCT06105866Enrolling by invitation
How preoperative fasting affects heart function
This study looks at how the heart's right chamber works in patients who have fasted before surgery. Researchers use an ultrasound test to measure a specific heart function and want to see if not drinking fluids or taking sedatives before surgery changes it.
Aydin, ZaferAges 18–75 - 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 - NCT06239649Recruiting
Nerve block before knee replacement for faster recovery
This trial tests whether a numbing injection (nerve block) around the knee before surgery can help you recover faster and feel less pain after a total knee replacement. It is for people with knee osteoarthritis who are ready for their first knee replacement surgery.
Denizli, PamukkaleAges 40–85 - 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+
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Common questions
- Are there clinical trials for preoperative fasting?
- Yes. Clin2 currently lists 14 recruiting preoperative fasting 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 fasting 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 fasting 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.