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Breath Analysis in Patients With Suspected Sarcoidosis: The VOCs-IS Study
Study Purpose
Sarcoidosis is a chronic condition which predominantly affects the lungs and lymph glands within the chest, however, may affect any organ within the body. At the present time, very little is known as to the exact cause of sarcoidosis and it is widely believed that the condition arises due to overreaction of the immune system to an unknown trigger in the environment such as an infection. Alongside this, the clinical course and progression of the condition varies considerably; some patients have a very mild form which does require any specific treatment, where as other patients develop a more severe form which can lead to permanent scarring (fibrosis) of the lungs if left untreated. At the present time it is difficult to predict how a patient will be affected by their sarcoidosis as there is a distinct lack of clinically useful markers which help predict prognosis and identify people at risk of disease progression or those who require treatment. The main aims of this study are to use a technique which captures and analyses breath samples to provide a profile of the chemicals known as volatile organic compounds (VOCs) which are present in the exhaled breath of patients with sarcoidosis. Specifically the study would look to see if these VOCs are different in patients with sarcoidosis compared to people who do not have sarcoidosis or any lung conditions. In addition, the study would look to see how these breath profiles relate to potential infections, change over time or in response to treatment with steroids. The study will involve a total of 80 patients presenting with suspected sarcoidosis and involve a total of four study visits over the course of twelve months. During each study visit a sample of breath will be collected alongside a blood test to look for markers of disease activity as well as completion of two questionnaires relating to a patients degree of breathlessness and quality of life. At the start of the study an additional questionnaire will be completed to identify possible risk factors for the development of sarcoidosis as well as the option of providing a sample of blood for genetic testing (which is voluntary). In patients undergoing a bronchoscopy or endobronchial ultrasound (EBUS), a sample of fluid which naturally lines the airways (bronchoalveolar lavage) will also be taken and used for metagenomic sequencing to try and identify any microbes which might be present within the lung and airways.
Recruitment Criteria
Accepts Healthy Volunteers
Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms |
Yes |
Study Type
An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes. An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes. Searching Both is inclusive of interventional and observational studies. |
Observational |
Eligible Ages | 18 Years and Over |
Gender | All |
Trial Details
Trial ID:
This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries. |
NCT04318392 |
Phase
Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans. Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data. Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs. Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use. |
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Lead Sponsor
The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data. |
Manchester University NHS Foundation Trust |
Principal Investigator
The person who is responsible for the scientific and technical direction of the entire clinical study. |
Stephen Fowler, MD FRCP |
Principal Investigator Affiliation | The University of Manchester |
Agency Class
Category of organization(s) involved as sponsor (and collaborator) supporting the trial. |
Other |
Overall Status | Recruiting |
Countries | United Kingdom |
Conditions
The disease, disorder, syndrome, illness, or injury that is being studied. |
Pulmonary Sarcoidosis |
Contact a Trial Team
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