Owlstone Medical launches breath testing for digestive health in collaboration with Functional Gut Diagnostics and Functional Gut Clinic

Owlstone Medical (OML), the global leader in breath biopsy for applications in early disease detection and precision medicine, has reached agreements with Functional Gut Clinic (FGC) and Functional Gut Diagnostics (FGD), leading providers of smart solutions for the diagnosis of gut health problems.

The partnership aims, by combining OML’s expertise in breath-based testing with FGC and FGD’s leadership in digestive health, to strengthen the provision of efficient and high-quality at-home breath testing through a UK Lab Services Agreement and accelerate development of future breath tests in digestive health through a Collaboration Agreement.

Over 1 billion people worldwide [1] suffer from digestive health issues including Irritable Bowel Syndrome (IBS), Small Intestine Bacterial Overgrowth (SIBO), food malabsorption, and other causes. In the UK alone almost 9 million adults experience IBS [2], and 3.4 million SIBO [3]. Unfortunately, symptoms overlap considerably and so many suffer for years with these conditions without a clear solution.

Hydrogen and methane are well established breath-based biomarkers in SIBO and Food Intolerance. This process works similarly to how Owlstone Medical’s EVOC Probes are being deployed in areas such as liver disease, using an external substrate to induce a clear and biologically relevant measurement on breath. The Lab Services Agreement between OML and FGD will support FGD’s at-home SIBO and Food Intolerance offering in the U.K., helping to scale operations through the provision of efficient and cost-effective management of laboratory testing and sample kit manufacturing at OML’s U.K. headquarters. OML will also provide commercial support to raise awareness of SIBO and Food Intolerance to drive testing volumes across a broad range of customers

Furthermore, OML, FGC and FGD, have entered into a Collaboration Agreement to expand the menu of available breathbased tests in the area. The partnership aims to discover, validate and commercialize novel tests by linking volatile organic compounds (VOCs) detectable in breath samples to digestive health disorders, with a first study initiated on gut dysbiosis. Under the Agreement, tests developed will be made available to clinical customers in the U.K. through FGD, and Commonwealth Diagnostics International (Salem, MA), one half of the FGD joint venture, is expected to make tests available in the United States.

Anthony Hobson, Director of FGD and FGC, commented: “We know that most currently available diagnostic testing for digestive health isn’t good enough. For too long, patients have been living with unresolved gut health problems and losing control of their lives. This is why we combine the very latest diagnostic technology with a team of dedicated specialists to offer a trusted, proven and reliable service to swiftly identify the problem. Our partnership with OML will enable us to expand on this idea through the efficient scaling of hydrogen/methane breath testing, and by building an exciting new suite of tests to support the millions of patients who suffer and struggle to control their symptoms in a new and highly impactful way.”


  • gutscharity.org.uk/advice-and-information/ conditions/irritable-bowel-syndrome/
  • www.bjmp.org/content/irritable-bowelsyndrome-primary-care-physicians
  • pubmed.ncbi.nlm.nih.gov/29761234/

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