Clinical trials: Breath Tests, open to volunteers
Cancer, Disease
Public Survey on Breath Testing for Health and Disease
A brief survey for the public to determine interest in health surveillance and disease detection
- Conditions
- Cancer, Disease, Health Behavior, Health Attitude
- Trial name
- NCT06081452
- Testing
- Survey
- Where
- United Kingdom
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Imperial College London
Liver Cirrhosis, Hepatocellular Carcinoma (HCC)
A Simple Breath Test to Detect Liver Cancer and Monitor Liver Conditions
Liver cancer is often diagnosed too late for effective treatment. The VOCAL2 study is developing a simple, non-invasive breath test to help detect liver cancer earlier and monitor liver conditions like cirrhosis.
- Conditions
- Liver Cirrhosis, Hepatocellular Carcinoma (HCC), Cholangiocarcinoma, Cholangitis, Sclerosing
- Trial name
- VOCAL2 (NCT06864195)
- Where
- United Kingdom
- Volunteers
- 750 people, healthy volunteers welcome
- Sponsor
- Imperial College London
COPD (Chronic Obstructive Pulmonary Disease)
Effects of Alternate Nostril Breathing and Bellows Breath in COPD Patients
COPD is a common respiratory disease characterized by progressive airflow obstruction, dyspnea, chronic cough, and sputum production.
- Trial name
- NCT07719192
- Testing
- alternate nostril breathing, bellows breath
- Where
- Pakistan
- Volunteers
- 54 people
- Sponsor
- Riphah International University
Multiple Sclerosis, Breath Tests
The Relationship Between Mechanical Properties of Respiratory and Lower Extremity Muscles and Other Parameters in Multiple Sclerosis
Multiple sclerosis (MS) is a chronic inflammatory disease characterised by deterioration in the mechanics of the lower extremities and respiratory muscles and a decrease in respiratory function.
- Conditions
- Multiple Sclerosis, Breath Tests, MyotonPRO
- Trial name
- NCT07202780
- Where
- Turkey (Türkiye)
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Sanko University
Helicobacter Pylori, Early Gastric Cancer
Helicobacter Pylori Infection Status and Pathological Features for Predicting Gastric Cancer Biological Behavior and Prognosis: A Real-World Observational Study
This multicenter retrospective and prospective real-world observational study will evaluate the relationship of Helicobacter pylori (H.
- Trial name
- NCT07724496
- Testing
- 13C-Urea Breath Test, Serum Helicobacter pylori Antibody Testing, Pathological Assessment of Gastric Tissue
- Where
- 3 sites in China
- Volunteers
- 1,500 people
- Sponsor
- Chinese PLA General Hospital
Bronchopulmonary Dysplasia
The Role of Volatile Organic Compounds (VOCs), Airway Mucins and the Microbiome in the Early Prediction of Bronchopulmonary Dysplasia (BPD)
Bronchopulmonary dysplasia (BPD), the most common respiratory complication of extremely preterm birth, significantly impacts healthcare with high morbidity and mortality rates.
- Trial name
- INFANCY (NCT06342752)
- Testing
- Breath test, Throat swabs, Placental samples
- Where
- Belgium
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- University Hospital, Antwerp
Breath Exercise, Test Anxiety
The Effects of Breathing Exercises Administered to Associate Degree Students on Test Anxiety and Academic Achievement
This study aims to examine the effects of breathing exercises administered to associate degree students on test anxiety and academic achievement.
- Conditions
- Breath Exercise, Test Anxiety, Higher Education Students, Academic Achievement
- Trial name
- NCT07145021
- Testing
- Breathing Exercise Intervention
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Istanbul University - Cerrahpasa
Non-alcoholic Fatty Liver Disease NAFLD
Hepatic Mitochondrial Metabolism in Fatty Liver Disease in Humans
The goal of this clinical trial is to investigate in healthy volunteers the mechanisms by which ethanol and lipids, the two key risk factors of steatotic liver disease (SLD), affect liver mitochondrial metabolism.
- Trial name
- ALPHA (NCT06559878)
- Testing
- 13C-α-Ketoisocaproic Acid Breath Test, Ethanol, Lipid Emulsion
- Where
- Finland
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Helsinki University Central Hospital
Gastroesophageal Reflux, Regurgitation
A Study of Breath Testing for Small Intestinal Bacterial Overgrowth
Researchers hope to determine how often small intestinal bacterial overgrowth occurs after taking proton pump inhibitors.
- Conditions
- Gastroesophageal Reflux, Regurgitation, Heartburn
- Trial name
- NCT05976165
- Testing
- Breath Testing
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- Mayo Clinic
Acute Coronary Syndrome, High-Risk Chest Pain
BREVOC Study: Exhaled VOCs for High-Risk Chest Pain in the ED
Study Objectives 1. Screening and identification of diagnostic biomarkers: To establish the exhaled volatile organic compound (VOC) profile of patients with acute high-risk chest pain and to differentiate high-risk chest pain…
- Conditions
- Acute Coronary Syndrome, High-Risk Chest Pain, Volatile Organic Compounds
- Trial name
- BREVOC (NCT07379567)
- Testing
- observational study
- Volunteers
- 6,000 people
- Sponsor
- Qilu Hospital of Shandong University
Autoimmune Gastritis
Assessing the Prevalence and Epidemiological Characteristics of Small Intestinal Bacterial Overgrowth (SIBO) in Patients With Autoimmune Gastritis(AIG) Through Hydrogen and Methane Breath Testing(HMBT).
Evaluate the prevalence of small intestinal bacterial overgrowth in patients with autoimmune gastritis (AIG) through hydrogen and methane breath testing, and determine whether there are differences in the positive rates of…
- Trial name
- HMBT、SIBO、AIG (NCT06946706)
- Testing
- hydrogen and methane breath testing
- Where
- China
- Volunteers
- 220 people
- Sponsor
- RenJi Hospital
Irritable Bowel Syndrome (IBS), Small Intestinal Bacterial Overgrowth Syndrome (SIBO)
Herbal Supplement (Biocidin REMOVE) for Bacterial Overgrowth in Irritable Bowel Syndrome
The goal of this clinical trial is to learn if an herbal supplement called Biocidin REMOVE can clear small intestinal bacterial overgrowth (SIBO) in adults with irritable bowel syndrome (IBS).
- Trial name
- NCT07768267
- Testing
- Biocidin REMOVE
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Johns Hopkins University
Obesity, Obesity, Morbid
Endoscopic Metabolic and Bariatric Therapies
This is a prospective collection of data from adult patients who have had an endoscopic metabolic and bariatric endoscopy procedure (EMBT) for primary or revision surgical procedures for obesity.
- Conditions
- Obesity, Obesity, Morbid, Obesity Associated Disorder, Bariatric Surgery Candidate
- Trial name
- EMBTs (NCT05725967)
- Testing
- Primary Obesity Endoscopic Procedures, Endoscopic Revision of Bariatric Surgical Procedures, Bariatric Surgery Procedures
- Where
- United States
- Volunteers
- 5,000 people
- Sponsor
- Christopher C. Thompson, MD, MSc
Non-alcoholic Fatty Liver Disease (NAFLD)
Elucidating Hepatic Metabolism in Non-alcoholic Fatty Liver Disease
The goal of this observational, cross-sectional, case-control clinical study is to investigate the metabolic adaptations underlying the progression of nonalcoholic fatty liver disease (NAFLD), and to test the hypothesis that…
- Trial name
- ECHO (NCT06942312)
- Testing
- Ketoisocaproic acid breath test, Ammonium Chloride, Bicarbonate de sodium
- Where
- Finland
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Helsinki University Central Hospital
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
Metabolic Syndrome, Obesity & Overweight
Breath Mass Spectrometry in Metabolic Syndrome and Metabolically Healthy Obesity
This study aims to develop a non-invasive diagnostic method for metabolic syndrome (MetS) and metabolically healthy obesity (MHO) through analysis of exhaled air.
- Conditions
- Metabolic Syndrome, Obesity & Overweight, Metabolically Healthy Obesity
- Trial name
- NCT07330297
- Testing
- Breath Sampling and Analysis by PTR-MS
- Where
- Russia
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- I.M. Sechenov First Moscow State Medical University
SIBO, Pancreatic Insufficiency
Breath Test-Based Assessment of SIBO in Chronic Pancreatitis and Partial Pancreatectomy
Pancreatic exocrine insufficiency (PEI) results from reduced pancreatic enzyme secretion, leading to malabsorption, malnutrition, and impaired quality of life.
- Conditions
- SIBO, Pancreatic Insufficiency, Chronic Pancreatitis, Pancreatic Surgey
- Trial name
- DCP-PCT-EPI (NCT07479238)
- Where
- Italy
- Volunteers
- 100 people
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Mechanical Ventilation, Spontaneous Breathing Trial
Trial of Spontaneous Breathing Test
The hypothesis is that the Spontaneous Breathing Test (SBT) without pressure support (PS) is not inferior to the SBT with pressure support in relation to the following outcomes: a) extubation failure; b) time on MV.
- Conditions
- Mechanical Ventilation, Spontaneous Breathing Trial, Extubation Readiness, Extubation Failures
- Trial name
- NCT06593288
- Testing
- Pressure Support Ventilation, continuous positive airway pressure (CPAP)
- Where
- Brazil
- Volunteers
- 170 people
- Sponsor
- University of Sao Paulo
Leukemia, Leukemia, Myeloid
Breath Analysis for the Detection of Invasive Fungal Infections
Patients with leukemia and concomitant neutropenia are at high risk of developing invasive fungal infections (IFI) that are associated with high morbidity and mortality.
- Conditions
- Leukemia, Leukemia, Myeloid, Leukemia, Lymphoblastic, Neutropenia
- Trial name
- REDEFINE (NCT06537726)
- Testing
- Secondary electrospray ionization high-resolution mass spectrometry (SESI-HRMS)
- Where
- Switzerland
- Volunteers
- 130 people
- Sponsor
- University of Zurich
Helicobacter Pylori Infection, Post-Treatment
PyloPlus Urea Breath Test System Post Therapy Efficacy Confirmation Study
This is a multi-center, non-randomized, open label study. Subjects will be enrolled if they are deemed eligible given the inclusion criteria.
- Conditions
- Helicobacter Pylori Infection, Post-Treatment, Efficacy
- Trial name
- NCT05681689
- Testing
- PyloPlus UBT System, Histology, Rapid Urease Test
- Where
- 2 sites in United States
- Volunteers
- 77 people, healthy volunteers welcome
- Sponsor
- ARJ Medical, Inc.