Owlstone Medical and UK’s NHS Study Whether Breath Contains Useful Biomarkers That Could Be Used in Medical Laboratory Tests for Multiple Cancers
Owlstone Medical’s breath biopsy platform takes aim at breath biomarkers for an earlier diagnosis of cancer; could it supplant tissue biopsies sent to pathology labs?
For many years, medical laboratory scientists and pathologists have known that human breath contains molecules and substances that have the potential to be used as biomarkers for detecting different diseases and health conditions. The challenge was always how to create clinical laboratory test technology that could use human breath samples to produce accurate and clinically useful information.
Stated differently, breath, the essence of life, may contain medical laboratory test biomarkers that could provide early-detection advantages to pathology groups in their fight against cancer. Now diagnostics company Owlstone Medical—developer of the Breath Biopsy platform—is about to conduct a clinical study in collaboration with the United Kingdom’s (UK’s) National Health Service (NHS) and others to demonstrate the effectiveness of its breath-based diagnostic tests.
Anatomic pathology groups and clinical laboratory leaders know human breath contains volatile organic compounds (VOCs) that can be useful diagnostic biomarkers for medical laboratory testing. Many possible breath tests have been researched. One such test, the urea breath test for detecting Helicobacter pylori (H. pylori), has been in clinical use for 20 years. As part of the test, patients with suspect stomach ulcers or other gastric concerns, swallow a tablet with urea and exhale carbon dioxide that is measured for H. pylori bacteria.
According to an Owlstone Medical news release, the new study, called the “PAN Cancer Trial for Early Detection of Cancer in Breath,” will explore the ability of Owlstone Medical’s Breath Biopsy platform to detect cancers of the:
Current medical care standards call for these cancers to be diagnosed by analyzing biopsied tissue specimens. If Owlstone Medical’s breath test performs well during trial, it could provide advantages over traditional tissue-based cancer testing that include:
- A non-invasive approach to finding cancer earlier;
- A lower price point as compared to a tissue biopsy cancer test; and
- Faster return of test results, since tissue would not need to be collected from patients during surgical procedures and sent to medical laboratories for analysis.
“By 2030, the number of new cancer cases per year is expected to rise to around 22-million globally. Some cancers are diagnosed very late when there are few treatment options available. Non-invasive detection of cancer in breath could make a real difference to survival,” stated Richard Gilbertson, PhD, Li Ka Shing Chair of Oncology, Director of the CRUK Cambridge Center, and Oncology Department Head at University of Cambridge, in the news release.
How the Breath Biopsy Platform Works
The Breath Biopsy platform relies on Owlstone Medical’s Field Asymmetric Ion Mobility Spectrometry (FAIMS) technology, which the diagnostics company explains is a “fast means to identifying volatile organic compound biomarkers in breath.”
Billy Boyle (above), co-founder and Chief Executive Officer at Owlstone Medical, demonstrates the ReCIVA Breath Sampler. “Positive results from the PAN cancer trial could be game-changing in the fight against cancer,” he noted in the news release. “Success in this study supports our vision of saving 100,000 lives and $1.5 billion in healthcare costs.” This technology has the potential to be disruptive to anatomic pathology, which relies on the analysis of biopsied tissue to detect cancer. (Photo copyright: Owlstone Medical.)
Here is how FAIMS works in the Breast Biopsy platform, according to the Owlstone Medical website:
- Gases are exchanged between circulating blood and inhaled fresh air in the lungs;
- VOC biomarkers in the body’s circulation system pass into air in the lungs, along with oxygen, carbon dioxide, and other gases;
- Exhaled breath contains those biomarkers exiting the body;
- Because it takes one minute for blood to flow around the body, a breath sample during that time makes possible collection and analysis of VOC biomarkers of any part of the body touched by the circulatory system.
One publication compared the capture of VOCs to liquid biopsies, another possible non-invasive cancer diagnostic technique being widely researched.
“The advantage to VOCs is that they can be picked up earlier than signatures searched for in liquid biopsies, meaning cancer can be diagnosed earlier and treated more effectively,” reported Pharmaphorum in its analysis of five technology companies fighting cancer.
As part of the clinical trial, breath samples will be collected in clinic settings with the hand-held Owlstone Medical ReCIVA Breath Sampler (equipped with a dime-sized FAIMS silicon chip). The samples will come from people with a suspected cancer diagnosis who are seeking care at Cambridge University Hospital’s Addenbrooke’s Hospital. To test reliability of the biomarkers, breath samples from patients with cancer and without cancer will be analyzed.
“You’re seeing a convergence of technology now, so we can actually run large-scale clinical studies to get the data to prove odor analysis has real utility,” stated Owlstone Medical co-founder and Chief Executive Officer Billy Boyle, in a New York Times article.
Breath Tests Popular Area for Research
The company’s Breath Biopsy platform is also being tested in a clinical trial for lung cancer being funded by the UK’s NHS. The study involves 3,000 people, the New York Times article reported.
This is not the first time we have reported on Owlstone Medical. A previous e-briefing explored the company’s technology in a study focused on diagnosis of lung cancer (See Dark Daily, “In the UK, Pathologists Are Watching Phase II of a Clinical Trial for a Breathalyzer System That Uses Only a Breath Specimen to Diagnose Lung Cancer,” May 11, 2015.)
Breath tests in general—because they generally are non-invasive, fast, and cost-effective—have been the subject of several other Dark Daily e-briefings as well, including those about:
- Glucose monitoring;
- Hospital-acquired infections; and
- Monitoring of lung cancer therapy to name just a few.
Owlstone Medical’s ability to get backing from Britain’s NHS, as well as investments to the tune of $23.5 million (the most recent coming from Aviva Ventures) is a positive sign. That Owlstone Medical’s Breath Biopsy platform is credible enough to attract such respected collaborators in the cancer trials as the Cancer Research UK Cambridge Institute (CRUK), University of Cambridge, and Cambridge University Hospitals (CUH) NHS Foundation Trust is evidence that the company’s diagnostic technology is considered to have good potential for use in clinical care.
Medical laboratory managers and pathology group stakeholders will want to monitor these developments closely. Once proven in clinical trials such as those mentioned above, breath tests have the potential to supplant other medical laboratory diagnostics and perhaps lower the number of traditional biopsies sent to labs for diagnosis of cancer.
—Donna Marie Pocius
Related Information:
Five Tech Companies Advancing Against Cancer
Owlstone Medical’s ReCIVA Named Invention of the Year in Top 50 Digital Health Awards
One Day a Machine Will Smell Whether You’re Sick
Cancer Breath Biomarker: CRUK and Owlstone Start Multi-Cancer Trail
Researchers Determine That Individuals’ ‘Breathprint’ Are Unique; May Have Potential for Clinical Laboratory Testing When Coupled With Mass Spectrometry Technology
Pathologists may be interested to learn that everyone’s breath reveals a signature composition of metabolites that may reflect a lifetime of diet, state of health, illnesses, and exposure to chemicals
New research shows that a person’s “breathprint” is as unique as a fingerprint and may be as effective as bodily fluids in diagnosing diseases. That same research effort is showing that it is feasible to combine breath specimens and mass spectrometry to accurately identify disease. That could give clinical laboratories a new methodology to use when creating diagnostic assays.
These findings are part of a new study conducted by researchers at the Swiss Federal Institute of Technology (ETH Zurich) in Zurich. The study was published by the journal PLOS ONE. (more…)
AXIM Biotechnologies Develops Diagnostic Test for Parkinson’s Disease That Uses Tear Drop Specimens and Returns Results in Less than 10 Minutes at the Point of Care
New non-invasive test could replace traditional painful spinal taps and clinical laboratory fluid analysis for diagnosis of Parkinson’s disease
Scientists at AXIM Biotechnologies of San Diego have added another specimen that can be collected non-invasively for rapid, point-of-care clinical laboratory testing. This time it is tears, and the diagnostic test is for Parkinson’s disease (PD).
The new assay measures abnormal alpha-synuclein (a-synuclein), a protein that is a biomarker for Parkinson’s, according to an AXIM news release which also said the test is the first rapid test for PD.
“The revolutionary nature of AXIM’s new test is that it is non-invasive, inexpensive, and it can be performed at a point of care. It does not require a lumbar puncture, freezing, or sending samples to a lab. AXIM’s assay uses a tiny tear drop versus a spinal tap to collect the fluid sample and the test can be run at a doctor’s office with quantitative results delivered from a reader in less than 10 minutes,” the news release notes.
A recent study conducted by the Michael J. Fox Foundation for Parkinson’s Research published in The Lancet Neurology titled, “Assessment of Heterogeneity among Participants in the Parkinson’s Progression Markers Initiative Cohort Using Α-Synuclein Seed Amplification: A Cross-Sectional Study,” found that “the presence of abnormal alpha-synuclein was detected in an astonishing 93% of people with Parkinson’s who participated in the study,” the news release noted.
“Furthermore, emerging evidence shows that a-synuclein assays have the potential to differentiate people with PD from healthy controls, enabling the potential for early identification of at-risk groups,” the news release continues. “These findings suggest a crucial role for a-synuclein in therapeutic development, both in identifying pathologically defined subgroups of people with Parkinson’s disease and establishing biomarker-defined at-risk cohorts.”
This is just the latest example of a disease biomarker that can be collected noninvasively. Other such biomarkers Dark Daily has covered include:
“With this new assay, AXIM has immediately become a stakeholder in the Parkinson’s disease community, and through this breakthrough, we are making possible new paradigms for better clinical care, including earlier screening and diagnosis, targeted treatments, and faster, cheaper drug development,” said John Huemoeller, CEO, AXIM (above), in a news release. Patients benefit from non-invasive clinical laboratory testing. (Photo copyright: AXIM Biotechnologies.)
Fast POC Test versus Schirmer Strip
AXIM said it moved forward with its novel a-synuclein test propelled by earlier tear-related research that found “a-synuclein in its aggregated form can be detected in tears,” Inside Precision Medicine reported.
But that research used what AXIM called the “outdated” Schirmer Strip method to collect tears. The technique involves freezing tear samples at -80 degrees Celsius (-112 Fahrenheit), then sending them to a clinical laboratory for centrifugation for 30 minutes; quantifying tear protein content with a bicinchoninic acid assay, and detecting a-synuclein using a plate reader, AXIM explained.
Alternatively, AXIM says its new test may be performed in doctors’ offices and offers “quantitative results delivered from a reader in less than 10 minutes.”
“Our proven expertise in developing tear-based diagnostic tests has led to the development of this test in record speed, and I’m extremely proud of our scientific team for their ability to expand our science to focus on such an important focus area as Parkinson’s,” said John Huemoeller, CEO, AXIM in the news release.
“This is just the beginning for AXIM in this arena,” he added. “But I am convinced when pharmaceutical companies, foundations, and neurologists see how our solution can better help diagnose Parkinson’s disease in such an expedited and affordable way, we will be at the forefront of PD research, enabling both researchers and clinicians a brand-new tool in the fight against PD.”
AXIM acquired Advanced Tear Diagnostics, Birmingham, Ala., in 2021. As part of this acquisition, it obtained two US Food and Drug Administration-cleared tests for dry eye syndrome, Fierce Biotech reported.
One of those tests was “a lateral flow diagnostic for point-of-care use that measures the level of lactoferrin proteins in tear fluid, which work to protect the surface of the eye. … Axim said that low lactoferrin levels have also been linked to Parkinson’s disease and that the assay can be used alongside its alpha-synuclein test,” Fierce Biotech noted.
Why Tears for PD Test?
Mark Lew, MD, Professor of Clinical Neurology, University of Southern California Keck School of Medicine, published earlier studies about using tear samples as biomarkers for Parkinson’s disease.
“It made sense to try and look at the proteinaceous [consisting of or containing protein] constituents of tear fluid,” Lew told Neurology Live. “Tear fluid is easy to collect. It’s noninvasive, inexpensive. It’s not like when you do a lumbar puncture, which is a much more involved ordeal. There’s risk of contamination with blood (saliva is dirty) issues with blood and collection. [Tear fluid analysis] is much safer and less expensive to do.”
In Biomarkers in Medicine, Lew et al noted why tears make good biomarkers for Parkinson’s disease, including “the interconnections between the ocular [eye] surface system and neurons affected in Parkinson’s disease.”
The researchers also highlighted “recent data on the identification of tear biomarkers including oligomeric α-synuclein, associated with neuronal degeneration in PD, in tears of PD patients” and discussed “possible sources for its release into tears.”
Future Clinical Laboratory Testing for Parkinson’s
Parkinson’s disease is the second most common neurodegenerative disorder after Alzheimer’s. It affects nearly one million people in the US. About 1.2 million people may have it by 2030, according to the Parkinson’s Foundation.
Thus, an accurate, inexpensive, non-invasive diagnostic test that can be performed at the point of care, and which returns clinical laboratory test results in less than 10 minutes, will be a boon to physicians who treat PD patients worldwide.
Clinical laboratory managers and pathologists may want to follow AXIM’s future research to see when the diagnostic test may become available for clinical use.
—Donna Marie Pocius
Related Information:
Parkinson’s Disease Biomarker Found
Tear Drop Test is First Rapid, Point-of-Care Diagnostic for Parkinson’s Disease
New Test Aims to Spot Signs of Parkinson’s Disease within a Tear Drop
Motivations for Using Tears to Confirm Parkinson’s Disease Diagnosis
Asian Company Launches World’s First Diagnostic Test for Microbiome of the Mouth
Collected data could give healthcare providers and clinical laboratories a practical view of individuals’ oral microbiota and lead to new diagnostic assays
When people hear about microbiome research, they usually think of the study of gut bacteria which Dark Daily has covered extensively. However, this type of research is now expanding to include more microbiomes within the human body, including the oral microbiome—the microbiota living in the human mouth.
One example is coming from Genefitletics, a biotech company based in New Delhi, India. It recently launched ORAHYG, the first and only (they claim) at-home oral microbiome functional activity test available in Asia. The company is targeting the direct-to-consumer (DTC) testing market.
According to the Genefitletics website, the ORAHYG test can decode the root causes of:
The test can also aid in the early detection development of:
“Using oral microbial gene expression sequencing technology and its [machine learning] model, [Genefitletics] recently debuted its oral microbiome gene expression solution, which bridges the gap between dentistry and systemic inflammation,” ETHealthworld reported.
“The molecular insights from this test would give an unprecedented view of functions of the oral microbiome, their interaction with gut microbiome and impact on metabolic, cardiovascular, cognitive, skin, and autoimmune health,” BioSpectrum noted.
“Microbes, the planet Earth’s original inhabitants, have coevolved with humanity, carry out vital biological tasks inside the body, and fundamentally alter how we think about nutrition, medicine, cleanliness, and the environment,” Sushant Kumar (above), founder and CEO of Genefitletics, told the Economic Times. “This has sparked additional research over the past few years into the impact of the trillions of microorganisms that inhabit the human body on our health and diverted tons of funding into the microbiome field.” Clinical laboratories may eventually see an interest and demand for testing of the oral microbiome. (Photo copyright: ETHealthworld.)
Imbalanced Oral Microbiome Can Trigger Disease
The term microbiome refers to the tiny microorganisms that reside on and inside our bodies. A high colonization of these microorganisms—including bacteria, fungi, yeast, viruses, and protozoa—live in our mouths.
“Mouth is the second largest and second most diverse colonized site for microbiome with 770 species comprising 100 billion microbes residing there,” said Sushant Kumar, founder and CEO of Genefitletics, BioSpectrum reported. “Each place inside the mouth right from tongue, throat, saliva, and upper surface of mouth have a distinctive and unique microbiome ecosystem. An imbalanced oral microbiome is said to trigger onset and progression of type 2 diabetes, arthritis, heart diseases, and even dementia.”
The direct-to-consumer ORAHYG test uses a saliva sample taken either by a healthcare professional or an individual at home. That sample is then sequenced through Genefitletics’ gene sequencing platform and the resulting biological data set added to an informatics algorithm.
Genefitletics’ machine-learning platform next converts that information into a pre-symptomatic molecular signature that can predict whether an individual will develop a certain disease. Genefitletics then provides that person with therapeutic and nutritional solutions that can suppress the molecules that are causing the disease.
“The current industrial healthcare system is really a symptom care [system] and adopts a pharmaceutical approach to just make the symptoms more bearable,” Kumar told the Economic Times. “The system cannot decode the root cause to determine what makes people develop diseases.”
Helping People Better Understand their Health
Founded in 2019, Genefitletics was created to pioneer breakthrough discoveries in microbial science to promote better health and increase longevity in humans. The company hopes to unravel the potential of the oral microbiome to help people fend off illness and gain insight into their health.
“Microorganisms … perform critical biological functions inside the body and transform our approach towards nutrition, medicine, hygiene and environment,” Kumar told CNBC. “It is important to understand that an individual does not develop a chronic disease overnight.
“It starts with chronic inflammation which triggers pro-inflammatory molecular indications. Unfortunately, these molecular signatures are completely invisible and cannot be measured using traditional clinical grade tests or diagnostic investigations,” he added. “These molecular signatures occur due to alteration in gene expression of gut, oral, or vaginal microbiome and/or human genome. We have developed algorithms that help us in understanding these alterations way before the clinical symptoms kick in.”
Genefitletics plans to utilize individuals’ collected oral microbiome data to determine their specific nutritional shortcomings, and to develop personalized supplements to help people avoid disease.
The company also produces DTC kits that analyze gut and vaginal microbiomes as well as a test that is used to evaluate an infant’s microbiome.
“The startup wants to develop comparable models to forecast conditions like autism, PCOS [polycystic ovarian syndrome], IBD [Inflammatory bowel disease], Parkinson’s, chronic renal [kidney] disease, anxiety, depression, and obesity,” the Economic Times reported.
Time will tell whether the oral microbiome tests offered by this company prove to be clinically useful. Certainly Genefitletics hopes its ORAHYG test can eventually provide healthcare providers—including clinical laboratory professionals—with a useful view of the oral microbiome. The collected data might also help individuals become aware of pre-symptomatic conditions that make it possible for them to seek confirmation of the disease and early treatment by medical professionals.
—JP Schlingman
Related Information:
Genefitletics Brings Asia’s First Oral Microbiome Test ORAHYG
Genefitletics Can Now Predict and Detect Chronic Diseases and Cancer
Genefitletics Can Now Predict and Detect Chronic Diseases and Cancer
Healthtech Startup Genefitletics Raises Undisclosed Amount in Pre-seed Funding
Understanding Oral Microbiome Testing: What You Need to Know
