Mouth Breathing clinical trials

The registry lists 33 studies for Mouth Breathing across more than 10 countries. 4 are recruiting or about to start. 21 of them are mainly about Mouth Breathing (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-12.

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Status

Completed: 23
Recruiting: 4
Status unknown: 4
Terminated: 1
Active, not recruiting: 1

Phase

Phase 1: 2
Phase 3: 1
Phase 2: 1

Where

United States: 9
Brazil: 6
Turkey: 4
Taiwan: 2
Italy: 2
Portugal: 1

Who runs them

University of Rochester (3) · Texas A&M University (2) · Université de Montréal (1) · National Yang Ming Chiao Tung University (1) · Özgül Aydemir (1) · ACES Entre Douro e Vouga II - Aveiro Norte (1) · Allama Iqbal Teaching Hospital (1) · Sahlgrenska University Hospital (1)

Coming up

0phase 3 studies under way

1study finishes 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 study

Dec 2026Impact of Diaphragmatic Breathing Coaching on Deep Inspiration Breath Hold Reproducibility and Organ Protection · M.D. Anderson Cancer Center

Who these studies take

Of the 4 Mouth Breathing studies recruiting now, 3 (75%) set no upper age limit and 1 (25%) stop at 75 or younger. 2 (50%) take children under 18. 0 (0%) are for women only and 0 (0%) for men only; 2 (50%) take healthy volunteers.

Recruiting studies that take each age, of 4
Age	Women	Men
10	2 (50%)	2 (50%)
18	2 (50%)	2 (50%)
30	2 (50%)	2 (50%)
40	2 (50%)	2 (50%)
50	3 (75%)	3 (75%)
65	3 (75%)	3 (75%)
75	3 (75%)	3 (75%)
85	3 (75%)	3 (75%)

Across all 33 studies, recruiting or not: 61% stop at 75 or younger and 58% at 65; 42% take children; 3% are for women only and 9% for men only; 52% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Mouth Breathing studies take

Of 17 interventional studies with no phase under Mouth Breathing, half reached primary completion within 9 months of starting, counting those still running.

Start to primary completion	Every sponsor	Industry	Non-industry
Interventional, no phase	9 mo6–25 · 17 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 33 of 33. search them.