Fasting Clinical Trials

12 recruiting

Fasting Trials at a Glance

37 actively recruiting trials for fasting are listed on ClinicalTrialsFinder across 6 cities in 18 countries. The largest study group is Not Applicable with 24 trials, with the heaviest enrollment activity in Boston, Baltimore, and Basel. Lead sponsors running fasting studies include Boston Children's Hospital, Massachusetts General Hospital, and Ataturk University.

Browse fasting trials by phase

Treatments under study

About Fasting Clinical Trials

Looking for clinical trials for Fasting? There are currently 12 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Fasting trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Fasting clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 37 trials

Recruiting
Not Applicable

Comparison of Residual Gastric Volume Between Children Who Drink Different Clear Oral Fluid Volume

Fasting
Boston Children's Hospital288 enrolled1 locationNCT03741777
Recruiting

The Million Anesthesia Cases Study (MACS) - a Cohort Study of Preoperative Fasting and Perioperative Outcomes

SurgeryAnesthesiaSedation+6 more
Massachusetts General Hospital1,200,000 enrolled1 locationNCT07022951
Recruiting

Gastric Assessment of Pediatric Patients Undergoing Surgery

Delayed Gastric EmptyingFasting
Boston Children's Hospital60 enrolled1 locationNCT05674643
Recruiting

Quality Improvement Project to Reduce Preoperative Fasting Times Before Elective Procedures

Preoperative FastingPostoperative Nausea and Vomiting (PONV)Perioperative Patient Comfort / Quality of Care
University of Giessen1,000 enrolled1 locationNCT07488468
Recruiting
Not Applicable

Impact of Intermittent Fasting on the Mental Health of Perimenopausal Women

Mental HealthIntermittent FastingPerimenopause
American University of Beirut Medical Center140 enrolled1 locationNCT07481513
Recruiting
Not Applicable

Effect of Fasting on Patient Outcomes After Wide-Awake, Local Anesthesia-only, No Tourniquet (WALANT) Procedures

SurgeryAnesthesia, LocalFasting
University of California, Irvine134 enrolled1 locationNCT05819801
Recruiting
Not Applicable

Effect of a High-Protein, High-Fiber Pre-Fast Meal on Satiety and Glycemic Profiles During Fasting

Dietary InterventionGlycemic Response; SatietyFasting, Time Restricted
King Faisal University38 enrolled1 locationNCT07447505
Recruiting
Not Applicable

Non-inferiority of Continuing Oral Intake Versus Fasting in Patients With Acute Respiratory Failure

AspirationRespiratory InsufficiencyDysphagia+2 more
University Hospital, Tours754 enrolled14 locationsNCT06510972
Recruiting

"Duration of Preoperative Clear Fluids Fasting in Patients Undergoing Liver Transplant"

Preoperative Clear Fluid FastingLiver Transplant Recipient
Medical University of Warsaw100 enrolled1 locationNCT07288281
Recruiting
Not Applicable

Intermittent Fasting for NAFLD in Adults

Non-Alcoholic Fatty Liver DiseaseFatty LiverLiver Fat+2 more
Massachusetts General Hospital25 enrolled1 locationNCT04899102
Recruiting
Not Applicable

Immunomodulatory Effects of Fasting in Healthy Adults

Fasting
University of California, Davis4 enrolled1 locationNCT05104502
Recruiting
Not Applicable

Evaluating a Fasting-mimicking Diet in Combination With Immunotherapy in Patients With Non-small Cell Lung Cancer

NSCLCImmunotherapyStage IV NSCLC+1 more
VA Office of Research and Development66 enrolled4 locationsNCT06671613
Recruiting

Fastomics: Metabolic and Therapeutic Effects of Prolonged Fasting

Insulin ResistanceFasting
University of Minnesota15 enrolled1 locationNCT07216989
Recruiting
Not Applicable

Effect of Preoperative Oral Carbohydrate Drink on ObsQoR-10 Score After Elective Cesarean Under Neuraxial Anesthesia

Cesarean SectionPreoperative FastingObsQor-10
Ataturk University100 enrolled1 locationNCT07204795
Recruiting

The Impact of Fasting Duration on Quality of Recovery After Cesarean Section

Cesarean SectionQuality ImprovementQuality of Recovery From Anaesthesia+1 more
Jewish General Hospital100 enrolled1 locationNCT06701929
Recruiting
Not Applicable

Pre-diabetes in Subject With Impaired Fasting Glucose (IFG) and Impaired Glucose Tolerance (IGT)

Diabetes Mellitus, Type 2Impaired Glucose Tolerance (IGT)Impaired Fasting Glucose (IFG)
The University of Texas Health Science Center at San Antonio700 enrolled1 locationNCT02969798
Recruiting
Phase 2

Take the Reins: The Effects of Nutrient Timing on Cancer-related Fatigue

SurvivorshipNeoplasmsFatigue+3 more
University of Maryland, Baltimore96 enrolled1 locationNCT06482515
Recruiting
Not Applicable

Evaluation of the Efficiency of Intermittent Enteral Nutrition on Multi-organ Failure From Patients With Mechanical Ventilation in Intensive Care Unit

Septic ShockOrgan Failure, MultipleIntermittent Fasting
University Hospital, Rouen174 enrolled1 locationNCT06330610
Recruiting
Not Applicable

Effectiveness of a Lifestyle Intervention for Pregnant Women With Abnormal Glucose Metabolism in Early Pregnancy: EAGM Trial

Lifestyle InterventionEarly PregnancyAdverse Pregnancy Outcomes+2 more
First Affiliated Hospital, Sun Yat-Sen University3,430 enrolled1 locationNCT06767722
Recruiting
Not Applicable

Mechanisms of Fasting Induced Reduction in Energy Expenditure

Fasting
ETH Zurich40 enrolled1 locationNCT06134258