Clinical trials: Breath Analysis
Metabolic Syndrome, Nonalcoholic Fatty Liver Disease
Prediction of Severity of Liver Disease by a 13C Octanoate Breath Test (OBT)
The purpose of the study is to demonstrate that the ¹³C-Octanoate Breath Test (OBT) can be used as an aid, in conjunction with other clinical information and medical history, for evaluating disease severity and detecting NASH…
- Trial name
- NCT01244503
- Testing
- Sodium Octanoate Breath Test
- Where
- 2 sites in United States
- Volunteers
- 61 people
- Sponsor
- Virginia Commonwealth University
H. Pylori Infection
Establish Epidemiologic Data of H. Pylori Infection in Children and Adolescents-Using C13-UBT
The aims of this prospective study are: (1) to prospectively investigate the "true" prevalence rate, the acquisition and spontaneous clearance of H.
- Trial name
- NCT00155623
- Where
- Taiwan
- Volunteers
- 3,000 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Irritable Bowel Syndrome, Diet Modification
Efficacy of Low-FODMAPs Dietary Therapy for Irritable Bowel Syndrome in China
The primary aim of our study is to carry out a randomized trial to evaluate the efficacy of low-FODMAPs dietary therapy compared to conventional therapy for IBS patients recruited from tertiary hospitals in China.
- Trial name
- NCT03304041
- Testing
- low-FODMAPs diet, Traditional dietary advice
- Where
- China
- Volunteers
- 108 people
- Sponsor
- Sir Run Run Shaw Hospital
Bronchoalveolar Lavage Fluid, Sensitivity and Specificity
Aspergillosis Detection Via EBC-GM in Ventilated Patients
Brief Research Proposal: Non-Invasive Detection of Invasive Pulmonary Aspergillosis in ICU Patients Background: Invasive Pulmonary Aspergillosis (IPA) is a critical threat to patients in ICUs, especially those undergoing…
- Conditions
- Bronchoalveolar Lavage Fluid, Sensitivity and Specificity, Critical Illness, Respiration Failure
- Trial name
- NCT06333379
- Testing
- Compare the levels of Galactomannan (GM) levels in exhaled breath condensate (EBC) and BALF
- Where
- China
- Volunteers
- 75 people
- Sponsor
- Lin Chen
Small Intestinal Bacterial Overgrowth
Comparative Assessment of Radioisotope Glucose and Breath Test
This is a research study about improving our diagnostic method for small intestinal bacterial overgrowth (SIBO). Patients undergoing Standard of Care (SOC) Endoscopically assisted glucose breath test (EAGBT) will undergo upper…
- Trial name
- NCT04499742
- Testing
- Using Isotope (Tc99m-Sulfur Colloid) to label glucose and administer this directly into duodenum.
- Where
- United States
- Volunteers
- 25 people
- Sponsor
- Augusta University
Tube Feeding
Effect of Methylnaltrexone (Relistor) on Digestion and Tolerance to Tube Feeding in Patients Treated With Opiates
It is hypothesized that using methylnaltrexone in addition to pain killer narcotics (opiates) in patients will result in increased tube feeding rates with more frequent nutrition at goal calorie rate.
- Trial name
- NCT01360372
- Testing
- Methylnaltrexone, Saline injection
- Where
- 2 sites in United States
- Sponsor
- Drexel University
Cirrhosis
Breath Test to Assess Hepatic Metabolic Reserve and to Predict Hepatic Decompensation in Cirrhotics
The three objectives of this trial are: 1. To demonstrate that a decline in hepatic metabolic function as measured by BreathID will correlate with changes in CTP and MELD scores in patients with cirrhosis. 2.
- Trial name
- NCT00375011
- Where
- 3 sites in United States, Israel
- Volunteers
- 200 people
- Sponsor
- Meridian Bioscience, Inc.
Dyspepsia
UBT as a Diagnostic Tool for HP Prevalance
The prevalence of H. pylori infection in Pakistan is unknown and investigators want to assess it in dyspeptic patients utilizing UBT.
- Trial name
- NCT02570776
- Where
- Pakistan
- Volunteers
- 200 people
- Sponsor
- National Institute of Liver & GI Diseases, Pakistan
Bacterial Infections
Diagnostic Breath Analysis for Detection of Ventilator Acquired Pneumonia (VAP)
Breath samples from patients with Ventilator Acquired Pneumonia (VAP) will be analyzed to identify Volatile Organic Compounds (VOC) that have been specifically associated with VAP in previous animal models.
- Trial name
- VAP-VOC (NCT03053258)
- Testing
- Collection of exhaled breath sample
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Landon Pediatric Foundation
Phenylketonuria (PKU)
Simple Breath Test to Examine Phenylalanine Metabolism
Phenylketonuria(PKU)is a rare condition caused by the body's inability to properly breakdown an amino acid called phenylalanine(PHE), due to a missing enzyme, phenylalanine hydroxylase(PAH).
- Trial name
- NCT02009904
- Where
- Canada
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Healthy Volunteers, Aerosol Therapy
Inhaled Dose Analysis Using a Breath Actuated Nebulizer in Healthy Subjects
The goal of this crossover study is to compare urine drug concentrations using a continuous vibrating mesh nebulizer versus a breath-actuated vibrating mesh nebulizer in healthy volunteers.
- Conditions
- Healthy Volunteers, Aerosol Therapy, Inhaled Drug Dose, Pharmacogenomic Drug Interaction
- Trial name
- NCT06157515
- Testing
- Breath-actuated vibrating mesh nebulizer, Continuous vibrating mesh nebulizer
- Where
- Taiwan
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Chang Gung University
Diabetes Mellitus, Type 2
Development and Validation of the Blood Glucose Measurement Device by Air Analysis Expired
This clinical study aims to finalize the algorithm and assess the performance of the BOYDSense® breath glucose monitoring system prototype in patients living with type 2 diabetes.
- Trial name
- BOYDSENSE (NCT05207020)
- Testing
- Glycemia estimated by exhaled air analyzer, Questionnaire, Veinous glycemia
- Where
- France
- Volunteers
- 130 people
- Sponsor
- University Hospital, Toulouse
Gastroparesis
ABCA2 GIRMS Analytical Validation Clinical Performance Study
The purpose of this study is to collect human breath samples for use in a validation study intended to demonstrate equivalent clinical performance measures of new ABCA2 GIRMS (Automated Breath Carbon Analyzer-2 Gas Isotope Ratio…
- Trial name
- NCT04607304
- Testing
- ABCA2 GIRMS
- Where
- United States
- Volunteers
- 95 people, healthy volunteers welcome
- Sponsor
- Cairn Diagnostics
Ventilator Associated Pneumonia (VAP)
Serial, Non-invasive Analysis of Exhaled Breath Condensate in Ventilated Trauma Patients
To determine if the analysis of exhaled breath condensate correlates with the development \& resolution of pneumonia.
- Trial name
- NCT02652247
- Testing
- molecular analysis of exhaled breath condensate, molecular analysis of mini-bronchoalveolar lavage (BAL) aspirate, molecular analysis of bronchoalveolar lavage (BAL) aspirate
- Where
- United States
- Volunteers
- 110 people
- Sponsor
- Vanderbilt University Medical Center
Breath Tests, Human Volunteers
Breath Test for Chemicals (Volatile Organic Compounds)
Background: Some types of cancer, like cancer of the esophagus, are difficult to detect at an early stage. A possible detection method involves collecting breath samples to look for chemicals that may be signs of cancer.
- Conditions
- Breath Tests, Human Volunteers, Pilot Study
- Trial name
- NCT01437033
- Where
- United States
- Volunteers
- 5 people
- Sponsor
- National Cancer Institute (NCI)
Lung Cancer
Mass Spectral Fingerprinting in Lung Cancer
To answer the question whether a disease specific profile of breath in patients with lung cancer can be detected by an untargeted metabolomic study using exhaled breath analysis by mass spectrometry.
- Trial name
- NCT02781857
- Testing
- No intervention
- Where
- Switzerland
- Volunteers
- 309 people
- Sponsor
- University of Zurich
Ankylosing Spondylitis, Respiratory Distress
Effectiveness of Mobile Respiratory Training in Ankylosing Spondylitis
Introduction and aim; Low functionality of respiratory muscles is frequently observed in various diseases such as chronic obstructive pulmonary disease, cystic fibrosis, idiopathic pulmonary fibrosis, and rheumatological diseases…
- Conditions
- Ankylosing Spondylitis, Respiratory Distress, Exercise Therapy, Breath Tests
- Trial name
- NCT06652984
- Testing
- Exercise 1, Exercise 2
- Where
- Turkey (Türkiye)
- Volunteers
- 80 people
- Sponsor
- Uşak University
Colorectal Cancer, Colorectal Polyps
The Colorectal Breath Analysis (COBRA) Study
This study aims to determine whether a breath test could be used for early detection of colorectal cancer and colorectal polyps.
- Conditions
- Colorectal Cancer, Colorectal Polyps, Colorectal Adenocarcinoma
- Trial name
- COBRA (NCT03699163)
- Testing
- Breath sample
- Where
- 8 sites in United Kingdom
- Volunteers
- 1,855 people
- Sponsor
- Imperial College London
Chronic Mesenteric Ischemia
Promoting Early Diagnosis of Chronic Mesenteric Ischemia
CMI is an incapacitating disease and timely diagnosis remains problematic. Despite the substantial compensatory capacity of the mesenteric circulation CMI is relatively common, its incidence being comparable to other well-known…
- Trial name
- PROMISE (NCT05735002)
- Testing
- 13C-butyrate breath test
- Where
- 4 sites in Netherlands
- Volunteers
- 296 people
- Sponsor
- Erasmus Medical Center
Tuberculosis, Urea Breath Test
Oral Urea Breath Testing for Diagnosis and Treatment Response in Pulmonary Tuberculosis
Background: Tuberculosis is a disease of the lungs caused by the bacteria Mycobacterium tuberculosis (M. tuberculosis). The most popular and least expensive tool used to detect the presence of the tuberculosis bacteria is called…
- Trial name
- NCT01301144
- Where
- Mali
- Volunteers
- 113 people
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)