Laughter clinical trials

The registry lists 26 studies for Laughter across 5 countries. 6 are recruiting or about to start. 11 of them are mainly about Laughter (how this is decided). Per ClinicalTrials.gov, last updated 2026-10-06.

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Breast cancer · Recruiting: 2 came in, 3 changed

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A study of drug A after surgery for early breast cancer

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· Sites: 4 added, including Seoul and Busan

· Enrollment: 300 → 450 participants

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Status

Completed: 16
Not yet recruiting: 4
Status unknown: 4
Recruiting: 1
Enrolling by invitation: 1

Phase

Phase 3: 1

Where

Turkey: 16
United States: 3
United Arab Emirates: 2
Cyprus: 1
Mexico: 1

Who runs them

Sinop University (5) · Istanbul University - Cerrahpasa (2) · Zayed University (2) · University of Texas at Austin (1) · Ege University (1) · Celal Bayar University (1) · Selcuk University (1) · Istanbul Gedik University (1)

Who these studies take

Of the 1 Laughter studies recruiting now, 0 (0%) set no upper age limit and 1 (100%) stop at 75 or younger. 0 (0%) take children under 18. 1 (100%) are for women only and 0 (0%) for men only; 1 (100%) take healthy volunteers.

Recruiting studies that take each age, of 1
Age	Women	Men
10	0 (0%)	0 (0%)
18	1 (100%)	0 (0%)
30	1 (100%)	0 (0%)
40	0 (0%)	0 (0%)
50	0 (0%)	0 (0%)
65	0 (0%)	0 (0%)
75	0 (0%)	0 (0%)
85	0 (0%)	0 (0%)

Across all 26 studies, recruiting or not: 62% stop at 75 or younger and 58% at 65; 19% take children; 46% are for women only and 0% for men only; 69% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Laughter studies take

Of 18 interventional studies with no phase under Laughter, half reached primary completion within 1 month of starting, counting those still running.

Start to primary completion	Every sponsor	Industry	Non-industry
Interventional, no phase	1 mo1–6 · 18 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

Studies

Recruiting first, then most recently updated. Showing 26 of 26. search them.