Fasting clinical trials
The registry lists 76 studies for Fasting across more than 10 countries. 38 are recruiting or about to start. Per ClinicalTrials.gov, last updated 2026-09-23.
Status
- Completed
- 29
- Recruiting
- 27
- Not yet recruiting
- 8
- Active, not recruiting
- 6
- Terminated
- 3
- Enrolling by invitation
- 3
Phase
- Phase 1
- 6
- Phase 2
- 3
- Phase 3
- 1
- Phase 4
- 1
Where
- United States
- 31
- Germany
- 10
- Canada
- 5
- France
- 4
- United Kingdom
- 3
- Turkey (Türkiye)
- 3
Who runs them
University of California, San Diego (4) · Charite University, Berlin, Germany (4) · National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) (2) · University Hospital Schleswig-Holstein (2) · Buchinger Wilhelmi Development & Holding GmbH (2) · Eli Lilly and Company (2) · Boston Children's Hospital (2) · Federal University of Minas Gerais (1)
Studies
Recruiting first, then most recently updated. Showing 50 of 76 — search for more.
- Exercise and Prolonged Fasting to Improve Brown Adipose Tissue Function in Postmenopausal WomenNot yet recruitingNCT07837752Not applicable1 country
- A Study of Orforglipron (LY3502970) in Participants With Type 2 Diabetes Who Observe Ramadan FastingRecruitingNCT07613307Phase 34 countries
- Intermittent Fasting for PancreatitisNot yet recruitingNCT04760847Not applicable1 country
- Stereotactic Radiation for Growing/Changing Brain Metastases With Same-Day Radiation Planning and Treatment With Margin ReductionRecruitingNCT07132190Phase 21 country
- Ketosis, Immune Function and Metabolic Adaptation in Response to Short-term Fasting in Critical IllnessNot yet recruitingNCT07738536Not applicable1 country
- The Effects of Increasing Caloric Intake on Diet-Induced Thermogenesis and 24h Energy ExpenditureRecruitingNCT05545306Not applicable1 country
- Evaluation of the Relation Between Patient Fasting Time and the Occurrence of PIH (Post Induction Hypotension)RecruitingNCT077856351 country
- Feasibility of Intermittent Fasting During ChemotherapyRecruitingNCT06645093Not applicable1 country
- The Impact of Fasting Duration on Quality of Recovery After Cesarean SectionRecruitingNCT067019291 country
- Circadian Rhythms in Postmenopausal WomenRecruitingNCT04893226Not applicable1 country
- Intermittent Fasting Using a Fasting-Mimicking Diet to Improve Prostate Cancer Control and Metabolic OutcomesRecruitingNCT05832086Phase 21 country
- Clinical Study on High-fiber Diet and Short-term Fasting in Melanoma Under Immunotherapy With Checkpoint InhibitionRecruitingNCT07680452Not applicable1 country
- Effect of macaúba Oil Combined With Green ExercisesNot yet recruitingNCT07715461Not applicable1 country
- Time Restricted Eating in Patients With MicroalbuminuriaRecruitingNCT06884059Phase 11 country
- Combining Fasting and Fibre Interventions to Optimise Their Gut Microbiome-mediated Health BenefitsNot yet recruitingNCT07691736Not applicable1 country
- The Effect of Fasting on Peak Fat Oxidation, Mitochondrial Coupling and Extracellular MatrixRecruitingNCT07692646Not applicable1 country
- Immunomodulatory Effects of Fasting in Healthy AdultsRecruitingNCT05104502Not applicable1 country
- Use of Maltodextrins in the ERAS Preoperative Fasting Protocol in Pediatric SurgeryRecruitingNCT07686029Not applicable1 country
- 7-Days Water-Only Fasting or Ketone Supplementation Trial in Prostate CancerRecruitingNCT06826924Not applicable1 country
- Preoperative Fasting vs. Not Fasting in Critically Ill PatientsRecruitingNCT06751043Not applicable1 country
- Mitophagy and Mitochondrial DNA Dynamics During Ramadan Dry Fasting vs 16:8 Time-Restricted FeedingNot yet recruitingNCT076386961 country
- Preoperative Fasting Duration and Gastric Residue in Pediatric Upper Gastrointestinal EndoscopyNot yet recruitingNCT076149191 country
- Guidelines on Long-term Medical FastingEnrolling by invitationNCT067480271 country
- Feasibility and Acceptibility of a Multi-site Trial of Time Restircted Eating During Chemotheraply for Breast Cancer.RecruitingNCT07387445Not applicable1 country
- Comparison of Residual Gastric Volume Between Children Who Drink Different Clear Oral Fluid VolumeRecruitingNCT03741777Not applicable1 country
- Knowledge, Attitudes, Practices & Perspectives on Pregnant Muslims Fasting RamadanRecruitingNCT075130641 country
- Gastric Assessment of Pediatric Patients Undergoing SurgeryRecruitingNCT056746431 country
- Effect of Fasting on Patient Outcomes After Wide-Awake, Local Anesthesia-only, No Tourniquet (WALANT) ProceduresRecruitingNCT05819801Not applicable1 country
- The Influence of a Fasting Mimicking Diet on Ulcerative ColitisRecruitingNCT03615690Not applicable1 country
- Non-inferiority of Continuing Oral Intake Versus Fasting in Patients With Acute Respiratory FailureRecruitingNCT06510972Not applicable1 country
- Long Term Impact of Time-Restricted Eating on Parameters of Cardiometabolic HealthRecruitingNCT07189234Phase 21 country
- Breaking Fasts Ahead of Cardiac CathsRecruitingNCT06996639Not applicable1 country
- Follow up Study of Varapodio Trial: Effect of Longevity and Fasting Mimicking Diet on Risk Factors Age Correlated and Biomarkers of AgingRecruitingNCT07255300Not applicable1 country
- Fetal Cardiac Functions in Fasting Pregnant WomenEnrolling by invitationNCT069002571 country
- Evaluating a Fasting-mimicking Diet in Combination With Immunotherapy in Patients With Non-small Cell Lung CancerRecruitingNCT06671613Not applicable1 country
- VITAL: Vaccination, Immunity, Time-restricted Eating, Aging and LifestyleRecruitingNCT07000708Not applicable1 country
- FastForward: A Prospective Analysis of Long-term Fasting and Subsequent Food Reintroduction in HumansEnrolling by invitationNCT071559931 country
- Benefits of no Fasting Compared to Fasting Prior to Elective Cardiac Catheterization: A Single-center Randomized-controlled TrialNot yet recruitingNCT07150780Not applicable
- The Food Effect on Pharmacokinetics of Fixed Dose Combination of Gemigliptin/Dapagliflozin/Metformin in Healthy VolunteersCompletedNCT07396844Phase 11 country
- The Meta-SHIFT Study: How Metabolic Shift Shapes Human Immunometabolism - a Fasting TrialCompletedNCT07527208Not applicable1 country
- Bioequivalence Study of Rivaroxaban 2.5 mg Tablets Under Fasting and Fed ConditionsCompletedNCT07807488Phase 11 country
- Effects of Diet Changes on MetabolismCompletedNCT005236271 country
- Metabolic Therapy Program In Conjunction With Standard Treatment For GlioblastomaCompletedNCT04730869Not applicable1 country
- The Influence of Time-Restricted Eating in Patients With Metabolic SyndromeCompletedNCT04057339Not applicable1 country
- Fastomics: Metabolic and Therapeutic Effects of Prolonged FastingCompletedNCT072169891 country
- Metabolic Effects of Diet-Exercise Interventions in ObesityCompletedNCT07695480Not applicable1 country
- Metabolic Phenotyping for Personalized Obesity TherapyTerminatedNCT068742701 country
- How Metabolism Affects Weight Loss and GainCompletedNCT068607761 country
- Dietary Fiber and Time Restricted EatingActive, not recruitingNCT07219706Not applicable1 country
- Overnight Fasting After Completion of Therapy: The OnFACT StudyActive, not recruitingNCT03523377Not applicable1 country