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Intermittent Fasting clinical trials

The registry lists 333 studies for Intermittent Fasting across more than 10 countries. 99 are recruiting or about to start. 129 of them are mainly about Intermittent Fasting (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-10.

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Example · made-up studies

Breast cancer · Recruiting: 2 came in, 3 changed

What changed in your saved searches, Oct 31 – Nov 6:

A study of drug A after surgery for early breast cancer

Came in · now Recruiting

Drug B with hormone therapy in advanced breast cancer

Changed

· Sites: 4 added, including Seoul and Busan

· Enrollment: 300 → 450 participants

Exercise during chemotherapy

Now Active, not recruiting

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Status

Completed
174
Recruiting
72
Status unknown
34
Active, not recruiting
21
Not yet recruiting
20
Enrolling by invitation
7

Phase

Phase 2
7
Phase 1
4
Early Phase 1
2
Phase 4
2

Where

United States
113
Turkey
28
China
22
United Kingdom
17
Canada
16
Germany
15

Who runs them

University of California, San Diego (12) · Charite University, Berlin, Germany (6) · Nanfang Hospital, Southern Medical University (5) · University of Illinois at Chicago (5) · Washington University School of Medicine (4) · University of Alabama at Birmingham (4) · Nottingham Trent University (4) · Western University, Canada (4)

What is being tested here

Drugs under test in Intermittent Fasting studies, those with the most open studies first. Medicines only given beside them are not counted. How drugs are counted

DrugOpenPhase 3All
Bupropion101
Serplulimab101
Leucine002
Proteins001
Protein Supplement001
Vitamin E001
Ascorbic Acid001

Coming up

0phase 3 studies under way
40studies finish main data collection within a year

Studies recruiting or running, from their records. “Main data collection” ends at the primary completion date, the sponsor’s own estimate, which often moves.

The 10 nearest

Who these studies take

Of the 72 Intermittent Fasting studies recruiting now, 19 (26%) set no upper age limit and 47 (65%) stop at 75 or younger. 4 (6%) take children under 18. 11 (15%) are for women only and 1 (1%) for men only; 22 (31%) take healthy volunteers.

Recruiting studies that take each age, of 72
AgeWomenMen
102 (3%)2 (3%)
1854 (75%)47 (65%)
3057 (79%)50 (69%)
4059 (82%)52 (72%)
5058 (81%)49 (68%)
6558 (81%)49 (68%)
7535 (49%)29 (40%)
8522 (31%)17 (24%)

Across all 333 studies, recruiting or not: 69% stop at 75 or younger and 50% at 65; 5% take children; 15% are for women only and 8% for men only; 47% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Intermittent Fasting studies take

Of 263 interventional studies with no phase under Intermittent Fasting, half reached primary completion within 17 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Interventional, no phase17 mo8–34 · 263 studies—18 mo9–34 · 257 studies

Each figure is the month by which half the studies had reached primary completion, with the range in which the middle half did. Studies still running count until their last registry update; studies that stopped early are left out. Phase 1 includes early phase 1; observational means prospective or not stated, as retrospective and cross-sectional studies date a window of data rather than a study. How these figures are worked out

What changed recently

From the registry's own updates since Oct 13, 2026.

Started recruiting2

Newly registered3

Studies

Recruiting first, then most recently updated. Showing 50 of 333. Browse all 333 → or search them.