Condition
Difficult or Failed clinical trials and research
As of November 12, 2026, Find a Trial lists 4 Difficult or Failed clinical trials that are recruiting, at sites in 4 countries (most in Switzerland (1), Turkey (Türkiye) (1), Spain (1)). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 4Clinical trials
- 4Countries
Newest Difficult or Failed clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| Predicting difficult mask ventilation and intubation using STOP-BANG in obese adults | — | Karachi, Sindh | Recruiting | Mar 25, 2026 |
| Automated prediction of difficult intubation from face photos and short video | — | Lausanne | Recruiting | Jun 11, 2024 |
| Comparing Airtraq for intubation in obese and non-obese men | — | Iamit and 1 other locations | Recruiting | Jul 3, 2023 |
| Comparing two methods for intubation in patients with difficult airways | — | Santiago de Compostela, A Coruña | Recruiting | Jun 23, 2022 |
All recruiting trials (4)
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Predicting difficult mask ventilation and intubation using STOP-BANG in obese adults
This study will test whether the STOP-BANG questionnaire can predict difficult mask ventilation and difficult intubation in obese adults having elective surgery.
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Automated prediction of difficult intubation from face photos and short video
This project will test an AI tool that uses face photos and short videos taken at pre‑anesthesia visits to predict whether adults having elective general anesthesia will be difficult to intubate with three common videolaryngoscopes.
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Comparing Airtraq for intubation in obese and non-obese men
This study is testing how well the Airtraq video laryngoscope works for intubating men with morbid obesity compared to non-obese men to see if it makes the process easier and faster.
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Comparing two methods for intubation in patients with difficult airways
This study is testing whether a new flexible tip tool can help doctors successfully intubate patients with difficult airways on the first try, compared to a traditional method.
Related topics
Quick answers
How many Difficult or Failed clinical trials are recruiting right now?
4, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 4 countries. The most sites are in Switzerland (1 trial), Turkey (Türkiye) (1 trial), Spain (1 trial), Pakistan (1 trial). Each study page lists its sites and which ones are recruiting.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.