Clinical trials: Breath Tests
Emphysema
Single-Breath Measurement Underestimates Ventilatory Volume According to Emphysema Severity
Although single breath helium (He) dilution measurement (VASB) is currently used in pulmonary function laboratories to assess functional alveolar volume and diffusing capacity for carbon monoxide, the extent to which VASB…
- Trial name
- NCT00528944
- Where
- United States
- Volunteers
- 73 people, healthy volunteers welcome
- Sponsor
- Columbia University
Covid19
Early Detection of COVID-19 Using Breath Analysis
EARLY DETECTION OF COVID-19 USING BREATH ANALYSIS- FIRST CROSS-SECTIONAL STUDY
- Trial name
- COVID-19 (NCT04602884)
- Testing
- Breath biopsy sampling using the ReCIVA Breath Sampler
- Where
- Israel
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Scentech Medical Technologies Ltd
Chronic Pancreatitis
Novel Breath Test to Detect Early Stage Chronic Pancreatitis
The goal of this study is to evaluate the feasibility of using a non-invasive, non-radioactive Pancreatic Breath Test (PBT) as a diagnostic tool to detect early stages of chronic pancreatitis (CP).
- Trial name
- NCT01184573
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Metabolic Solutions Inc.
Healthy
13C-Pyruvate Breath Test
The purpose of the test is to measure an enzyme called pyruvate. Subjects will fast for 12 hours and then undergo a breath test, have blood drawn, and cells from the inside of the mouth collected over a 12 hour period.
- Trial name
- PBT (NCT01807702)
- Testing
- 13C-Pyruvate 13C-lactate and dichloroacetate
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- University of Florida
Small Bowel Disease, Motility Disorder
Study of Oro-cecal Transit Time in Healthy Subjects Using Scintigraphy and Lactulose Hydrogen Breath Test.
Radionuclide scintigraphy is the gold standard technique to interpret OCTT but there is no normative data available for its interpretation in Indian population.
- Conditions
- Small Bowel Disease, Motility Disorder, Irritable Bowel Syndrome
- Trial name
- NCT05004207
- Testing
- 99mTc Scintigraphy
- Where
- India
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Asian Institute of Gastroenterology, India
Cystic Fibrosis
Breath Analysis in in Adults With Cystic Fibrosis (CF)
Exploratory comparative evaluation of exhaled breath composition in cystic fibrosis patients with age and gender-matched healthy adults in order to identify a disease-specific exhaled breath pattern as well as to gain insight…
- Trial name
- NCT02209571
- Testing
- Venous blood markers
- Where
- Switzerland
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Delayed Gastric Emptying
Reference Values for Gastric Emptying
Healthy volunteers will ingest a 13C-octaoate containing test meal and 13C in expiratory air will be followed. Normal values will be calculated data of these tests.
- Trial name
- 13C (NCT02397577)
- Testing
- Solid test meal, liquid test meal on two separate occations
- Where
- Switzerland
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- University of Zurich
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
Malabsorption
Investigate the Breath Hydrogen Exhalation After a Test Meal Containing Isomaltulose or Sucrose in Infants
The study shall investigate whether isomaltulose is digested and absorbed to a comparable degree like other carbohydrates (CHO) used as ingredients for this age group (e.g.
- Trial name
- NCT02247102
- Testing
- Isomaltulose, Sucrose
- Where
- Israel
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Tel-Aviv Sourasky Medical Center
Breath Test, Oesophageal Cancer
Augmentation of Volatile Biomarkers of Oesophageal and Gastric Adenocarcinoma From the Tumour Lipidome
Nearly 10,000 people die each year in the United Kingdom from cancer of the lower gullet and stomach, known as known as oesophago- gastric adenocarcinoma (OGC).
- Conditions
- Breath Test, Oesophageal Cancer, Gastric Cancer, Augmentation
- Trial name
- AVOCADO (NCT05600608)
- Testing
- Oral Stimulant Drink
- Where
- United Kingdom
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Anuja Mitra
Gastric Acid-related Diseases, Healthy
Comparison Study Between C13-CAC Breath Test and 24-hour Gastric pH Monitoring
The purpose of this study is to compare C13-CAC Breath Test with 24-hour Gastric pH Monitoring in Patients with Gastric Acid-related Diseases and Healthy Volunteers
- Trial name
- NCT02225067
- Testing
- Calcium (13C)Carbonate
- Where
- Japan
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Otsuka Pharmaceutical Co., Ltd.
OESOPHAGO-GASTRIC CARCINOMA, Oesophageal Adenocarcinoma
AUGMENTED RESPONSE OF VOLATILE BIOMARKERS IN THE ASSESSMENT OF OESOPHAGOGASTRIC CANCER (AROMA2)
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
- OESOPHAGO-GASTRIC CARCINOMA, Oesophageal Adenocarcinoma, Gastric Adenocarcinoma and Gastroesophageal Junction Adenocarcinoma, Oesophageal Cancer Nos
- Trial name
- AROMA2 (NCT07260734)
- Testing
- Breath Test
- Volunteers
- 6,000 people, healthy volunteers welcome
- Sponsor
- Imperial College London
Covid19
Evaluation of Anti-COVID 19 Pfizer Vaccination Effect on COVID 19 Detection Using Breath Analysis
The objective of this study will be to evaluate the effect of vaccination on breath VOC content. By capturing and analyzing the breath of anti-COVID-19 vaccinated subjects during the period of antibody production, the…
- Trial name
- COVID-19 (NCT04842708)
- Testing
- vaccination against COVID19
- Where
- Israel
- Volunteers
- 43 people, healthy volunteers welcome
- Sponsor
- Scentech Medical Technologies Ltd
Lung Cancer
Analysis of Volatile Chemicals in Lung Cancer Screen-Eligible Subjects Using Infrared Spectroscopy
The aim of this study is to sample and analyze volatile organic compounds (VOCs) from a high-risk population of subjects eligible for lung cancer screening as defined by the US Preventive Services Task Force (USPSTF) guidelines.
- Trial name
- NCT05174468
- Where
- United States
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Breathe BioMedical Inc
Healthy Subjects, Chronic Liver Disease
¹³C-Methacetin Breath Test (MBT) Methodology Study
Several factors will be tested to see if they have an influence on the methacetin breath test results. Each one of the factors has been raised as a possible source of distortion of the MBT result. I.
- Conditions
- Healthy Subjects, Chronic Liver Disease, Cirrhosis
- Trial name
- NCT01205074
- Testing
- 13C Methacetin Breath Test, Grape fruit juice, Non selective beta blocker - Propranolol
- Where
- Israel
- Volunteers
- healthy volunteers welcome
- Sponsor
- Hadassah Medical Organization
Anal Incontinence
Does the Negativation of the Glucose Hydrogen Breath Test Come Along With a Reduction of the Symptoms of Gaz Incontinence ?
The objectives of this work are: 1/to estimate the frequency of a positive glucose breath test in favour of a small intestinal bacterial overgrowth in a population of patients consulting for gaz incontinence by comparison to a…
- Trial name
- NCT01275560
- Testing
- Metronidazole, CArbosylane
- Where
- France
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- University Hospital, Rouen
Healthy
13C Trioctanoate Breath Test as a Measurement of Gastric Fat Volume Emptying
13C breath tests represent an attractive alternative in the measurement of gastric emptying (GE). Therefore these tests have been used in a variety of clinical settings such as in the assessment of gastroparesis, delayed GE in…
- Trial name
- 13CTriOBT (NCT02602158)
- Testing
- Octanoic acid (1-13C, 99%), TRIOCTANOIN (1,1,1-13C3, 99%)
- Where
- Switzerland
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Inflammatory Bowel Diseases
AIRE-2 Device for Study of Breath Analysis in IBD
The goal of this Prospective single-blinded intervention feasibility study is the utilization of the AIRE-2 device and FoodMarble app to elucidate the interplay among diet, symptoms, and microbial fermentable features in IBD…
- Trial name
- AIRE-2 (NCT06541938)
- Testing
- low FODMAP diet, Lactose Sachet, Fructose Sachet
- Where
- Canada
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- McMaster University
Irritable Bowel Syndrome
Fructose and Fructans in Irritabla Bowel Syndrome
The purpose of the study is to investigate if patients with Irritable Bowel Syndrome (IBS) who also report bloating are more likely to report clinically important gastrointestinal symptoms after consuming fructose or fructans…
- Trial name
- FABS (NCT01776853)
- Testing
- Glucose, Fructose, Fructans
- Where
- United Kingdom
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- University of Nottingham
COPD
Breath Analysis in Chronic Obstructive Lung Disease (COPD)
To answer the question whether a disease specific profile of breath in patients with COPD can be detected by an untargeted metabolomic study using exhaled breath analysis by mass spectrometry.
- Trial name
- NCT02186639
- Where
- Switzerland
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Zurich