Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Fasting: early-phase trial registry
6 of 9 indexed Fasting trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #1,916 of 28,707 conditions by registered trial count.
9 US clinical trials · 6 currently recruiting · #1,916 of 28,707 conditions by registered trial count
Fasting: 9 US clinical trials tracked, 6 recruiting.
Fasting is the subject of 9 registered US clinical trials on ClinicalTrials.gov, 6 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 1 in Phase 1-2 (earlier-stage). The most active sponsor is Boston Children's Hospital, running 2 of these trials.
Enrollment posture brief
Registry condition fasting
OPEN 6 | RECR 67% | LATE 0 | EARLY 1 | RANK #1916 | SPON 2
Volume-matched condition peers
Nearest open-share peer: Acute Hypoxemic Respiratory Failure (67% recruiting · 6 trials)
Fasting lists 6 open slots (67% of 9 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Fasting on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
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Fasting is recruiting above its size-band peers.
6 of 9 indexed trials (66.7%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
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One sponsor concentrates Fasting research.
Boston Children's Hospital accounts for 2 of 9 trials (22.2%). 8 distinct sponsors appear on at least one study for this condition label.
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Most Fasting trials plan to enrol fewer than 100 people.
Median target enrolment is 43 among the 9 trials that report a genuine target (sentinel values excluded). 6 of those (66.7%) plan for fewer than 100 participants.
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Fasting splits between interventional and observational designs.
6 interventional and 3 observational studies make up this index (66.7% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
9 total, page 1 of 1
Preoperative Fasting vs. Not Fasting in Critically Ill Patients
Massachusetts General Hospital
NCT06751043
Comparison of Residual Gastric Volume Between Children Who Drink Different Clear Oral Fluid Volume
Boston Children's Hospital
NCT03741777
Effect of Fasting on Patient Outcomes After Wide-Awake, Local Anesthesia-only, No Tourniquet (WALANT) Procedures
University of California, Irvine
NCT05819801
Gastric Assessment of Pediatric Patients Undergoing Surgery
Boston Children's Hospital
NCT05674643
Fastomics: Metabolic and Therapeutic Effects of Prolonged Fasting
University of Minnesota
NCT07216989
Immunomodulatory Effects of Fasting in Healthy Adults
University of California, Davis
NCT05104502
Bioavailability Study of Ciprofloxacin 1000 mg ER Tablets of Dr. Reddy's Under Fasting Conditions
Dr. Reddy's Laboratories Limited
NCT01372345
Regulation of FGF21 by Nutritional Challenges
Beth Israel Deaconess Medical Center
NCT00968747
Using Exhaled Air to Determine Changes in Nutritional Status of Patients on Intravenous Nutrition
University of Wisconsin, Madison
NCT02843256
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 1 |
Top Sponsors
Named interventions
Most-linked intervention names on Fasting records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Fasting trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Fasting page
9 registered trials, 6 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 6 Fasting trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Boston Children's Hospital sponsors the most Fasting trials on record, review their full trial history before evaluating a specific study. See Boston Children's Hospital's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Fasting condition card totals 9 registered trials; most-linked intervention Fasting; top US site state Massachusetts. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.