Clinical trials: Breath Analysis
Small Intestinal Bacterial Overgrowth
Methane and Hydrogen Breath Test for the Diagnosis of Small Intestinal Bacterial Overgrowth
To investigate whether the positive rates of methane and hydrogen breath test were different between the experimental group and the control group.
- Trial name
- NCT06483360
- Volunteers
- 750 people, healthy volunteers welcome
- Sponsor
- Shanghai Jiao Tong University School of Medicine
Pneumonia, Bacterial
Urease Breath Test for Rapid Characterization of Pneumonia
This is a Phase 1, open label, evaluation of a 13C-urea breath test for the detection of urease-producing bacteria in patient with pneumonia in the emergency department.
- Trial name
- NCT03100760
- Testing
- 13C-urea breath test
- Where
- United States
- Volunteers
- 75 people
- Sponsor
- University of New Mexico
Decompensated Cirrhosis
Companion Protocol for Methacetin Breath Test (MBT) in Conatus Protocol IDN-6556-17
This study is a companion protocol that will use the data generated by Conatus' study of emricasan under protocol IDN-6556-17.The IDN-6556-17 study is a Phase 2, multicenter, double-blind, placebo-controlled trial of Emricasan in…
- Trial name
- NCT03462576
- Testing
- Methacetin Breath Test, Emricasan
- Where
- United States
- Volunteers
- 199 people
- Sponsor
- Meridian Bioscience, Inc.
Invasive Aspergillosis
Exhaled Breath Analysis in the Early Detection of Aspergillosis
Although the clinical outcome in patients with Invasive Aspergillosis (IA) is largely dependent on early initiation of effective treatment with antifungal drugs, diagnosing IA is still a critical problem.
- Trial name
- AENEASII (NCT02106117)
- Where
- 2 sites in Netherlands
- Volunteers
- 120 people
- Sponsor
- Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Colorectal Cancer, Polyp of Colon
Breath Analysis as an Additional Test for Colorectal Cancer Screening to Reduce the Number of Unnecessary Colonoscopies
In the past decade, the demand for colonoscopy procedures has increased significantly since the introduction of population-based colorectal cancer (CRC) screening in many western countries.
- Conditions
- Colorectal Cancer, Polyp of Colon, Colorectal Neoplasms
- Trial name
- SCREENER (NCT04357158)
- Testing
- AeonoseTM
- Where
- Netherlands
- Volunteers
- 750 people
- Sponsor
- Radboud University Medical Center
Lung-/Airway Diseases
Analysis of Exhaled Breath From Patients With Lung-/Airway Diseases (BigExBrESs)
Ananlyis of exhaled breath of patients with lung-/airway diseases to identify and distinguish respiratory diseases, and improve the disease manangament.
- Trial name
- BigExBrESs (NCT05458934)
- Testing
- No intervention
- Where
- Switzerland
- Volunteers
- 5,000 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Appetite, Gastrointestinal Transit
Ultra-Processed Foods, Palatability, Appetite, and Gastrointestinal Transit
The goal of this clinical trial is to learn how food processing level affects appetite and gastrointestinal transit time when meal palatability is changed. Participants will complete one screening visit and four test visits.
- Conditions
- Appetite, Gastrointestinal Transit, Food Processing, Food Palatability
- Trial name
- NCT07600281
- Testing
- Palatable Ultra-Processed Food Meal, Unpalatable Ultra-Processed Food Meal, Palatable Non-Ultra-Processed Food Meal
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Purdue University
Volatile Organic Compounds, Microbiome
Augmented Response of Volatile Biomarkers in Assessment of Oesophagogastric Cancer (AROMA 1 / BIORESOURCE)
Cancer of the stomach and oesophagus is among the world's top five cancers. Survival rates are very poor as the disease presents late and early symptoms are non-specific.
- Conditions
- Volatile Organic Compounds, Microbiome, Microbioata, Breath Analysis
- Trial name
- NCT05412758
- Testing
- Oral Stimulant Drink
- Where
- United Kingdom
- Volunteers
- 648 people, healthy volunteers welcome
- Sponsor
- Imperial College London
Chronic Pancreatitis, Healthy Volunteers
BreathID® Test: A Non-invasive Modality to Detect Pancreatic Exocrine Insufficiency
13C breath di-peptide tests are an effective non-invasive tool to detect pancreatic exocrine function in patients with Chronic Pancreatitis.
- Trial name
- NCT01259544
- Testing
- benzoyl-L-tyrosyl-[1-13C]alanine (Bz-Tyr-Ala)
- Where
- India
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Meridian Bioscience, Inc.
Cirrhosis, Microbiota
Exploring Clinical Characteristics of Liver Disease Patients Based on Digestive Metabolic Exhaled Air
Cirrhosis is a common digestive system disease and represents the final stage of the progression of various chronic liver diseases.
- Conditions
- Cirrhosis, Microbiota, Breath Tests
- Trial name
- NCT06968234
- Where
- 3 sites in China
- Volunteers
- 1,000 people
- Sponsor
- Shanghai Zhongshan Hospital
Irritable Bowel Syndrome
Efficacy of Hydrogen Breath Test in the Patients With Irritable Bowel Syndrome
Irritable bowel syndrome is characterized by abdominal discomfort and bowel habit change. It is increasing worldwide. But the pathophysiology of the irritable bowel syndrome is not proven.
- Trial name
- NCT02242175
- Testing
- Glucose breath test (hydrogen breath test)
- Where
- South Korea
- Volunteers
- 147 people, healthy volunteers welcome
- Sponsor
- Yonsei University
Diabetes, Hyperglycemia
Miniaturized Breath-based Sensor for the Detection of Hypo- and Hyperglycemia
The purpose of this study is to determine whether an array of biosensors can noninvasively identify hyperglycemic or hypoglycemic events in persons diagnosed with diabetes through noninvasive detection of volatile organic…
- Conditions
- Diabetes, Hyperglycemia, Hypoglycemia (Diabetic)
- Trial name
- NCT07696273
- Testing
- Sensing Device and Tedlar Bags
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Indiana University
Sedentary Behavior, Aging
Oral 'Breath Test' to Measure Anabolic Sensitivity in Young and Older Adults at Different Activity Levels
Recent work in the investigators laboratory has examined the ability of a non-invasive 13CO2 breath-test to assess differences in amino acid oxidation rates and net balance in young healthy males following protein feeding and…
- Conditions
- Sedentary Behavior, Aging, Sarcopenia, Amino Acids
- Trial name
- ARBT (NCT05216809)
- Testing
- Habitual Physical Activity, Step-Reduction
- Where
- Canada
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Toronto
SARS-CoV-2 Infection, Covid19
Breath Analysis of Patients Diagnosed With COVID-19 Using Infrared Spectroscopy
To analyze Volatile Organic Compounds (VOCs) in the breath of patients with SARS-CoV-2 and controls in SARS-CoV-2 breath specimens.
- Trial name
- BREATH (NCT04867213)
- Where
- Canada
- Volunteers
- 200 people
- Sponsor
- McMaster University
Ventilatory Failure
Individualised Weaning From Mechanical Ventilation in General ICU
Patients residing in the intensive care unit typically receive mechanical ventilatory support. Selecting the appropriate level of mechanical ventilation is not trivial, and it has been shown that lung protective settings can…
- Trial name
- iCareWean_CW (NCT03249623)
- Testing
- Beacon Caresystem
- Where
- United Kingdom
- Volunteers
- 274 people
- Sponsor
- Chelsea and Westminster NHS Foundation Trust
Transplant; Complication, Rejection
Volatile Organic Compounds as Markers of Acute Rejection in Lung Transplant
The aim of research is to identify markers of acute rejection by VOC analysis in exhaled breath of bilateral-lung transplanted patients.
- Trial name
- VOC-TP (NCT03172091)
- Testing
- eNose (electronic nose), Spectrometry
- Where
- France
- Volunteers
- 120 people
- Sponsor
- Hopital Foch
Cirrhosis
Use of Methacetin Breath Test to Predict Liver Failure in Patients With Cirrhosis
The methacetin breath test (MBT) is a non-invasive liver function test which measures the ability of the liver to metabolize a tracer dose of a compound to carbon dioxide, which is exhaled.
- Trial name
- NCT01157845
- Testing
- BreathID (Methacetin breath test)
- Where
- 4 sites in United States, Israel
- Volunteers
- 165 people
- Sponsor
- Virginia Commonwealth University
Breast Cancer
Breath Test for Women Receiving Tamoxifen in the Prevention or Treatment of Breast Cancer
RATIONALE: A breath test that measures enzymes may be effective in identifying women in whom tamoxifen may not be effective. PURPOSE: This clinical trial is studying a breath test to see how well it works in women receiving…
- Trial name
- NCT00873366
- Testing
- dextromethorphan hydrobromide, tamoxifen citrate, high performance liquid chromatography
- Where
- 2 sites in United States
- Volunteers
- 92 people
- Sponsor
- Mayo Clinic
Dyspnea, Acute Heart Failure
Impact of Validated Diagnostic Prediction Model of Acute Heart Failure in the Emergency Department
The purpose of this study is to evaluate a validated diagnostic prediction model in the appropriate diagnosis of Acute Heart Failure (AHF) in patients presenting at the emergency department with undifferentiated dyspnea.
- Conditions
- Dyspnea, Acute Heart Failure, Shortness of Breath
- Trial name
- NCT01193998
- Testing
- Treatment as per model probability, Treatment as per usual care
- Where
- 3 sites in United States, Canada and 1 more
- Volunteers
- 186 people
- Sponsor
- Unity Health Toronto
SARS-CoV-2 Infection
Breath Analysis for SARS-CoV-2 in Infected and Healthy Subjects
Recently published studies could demonstrate that detection of specific biomarkers in breath could be applied for the diagnosis of SARS-CoV-2.
- Trial name
- NCT04547114
- Testing
- Multicapillary column coupled ion mobility spectrometry
- Where
- Germany
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Klinikum Bayreuth GmbH