Thermo Fisher Scientific Inc. has inked a definitive agreement to acquire Mesa Biotech Inc., a privately held molecular diagnostics company with a point-of-care (POC) platform, for approximately $450 million in cash. The scientific instruments and testing giant said it will pay an additional $100 million in cash upon the completion of certain milestones. The planned acquisition will expand Thermo Fisher’s franchise of diagnostic test options with a novel platform that enables nucleic acid polymerase chain reaction (PCR) testing at the point of care.

The U.S. Preventive Services Task Force (USPSTF) appears on the verge of expanding colorectal cancer screening to individuals ages 45 to 49, based on its latest draft recommendations. If it does, Exact Sciences Corp. is ready. A study in Cancer Prevention Research demonstrated that the Madison, Wis.-based company's Cologuard multitarget stool DNA test had better than 95% specificity in individuals with nonadvanced precancerous lesions or negative findings on colonoscopy.

Opticyte Inc., a medical device startup, is planning the first clinical trial of its cellular oxygen monitor, a new device that could help emergency physicians diagnose sepsis faster and prevent organ failure. The prospective, observational trial is set to launch in mid-2021.

Liquid biopsy startup Delfi Diagnostics Inc. scooped up $100 million in a series A round led by Orbimed Advisors LLC. The company will use the funds to grow its team of cancer researchers and machine learning experts and to validate its next-generation blood-based testing technology in prospective clinical trials. Existing investors Menlo Ventures, Samsara Biocapital, Illumina Ventures, Av8 Ventures also participated in the round, along with new investors Foresite Capital, Northpond Ventures, Cowen Healthcare Investments and Rock Springs Capital.

Reports of multiple new variants of the SARS-CoV-2 virus have emerged, raising questions about the efficacy of vaccines, but also regarding the utility of diagnostic and other tests. The U.S. FDA’s Tim Stenzel said single-target tests are thus at a greater risk of returning a false negative result, adding that these developers “should consider this carefully” in surveillance of their tests.

Diagnostics innovator Renalytix AI plc and dialysis giant Davita Inc. partnered to develop a program to identify individuals with early-stage kidney disease and improve outcomes for the 37 million Americans with chronic kidney disease (CKD). The companies plan to launch the collaborative effort in three cities in 2021 to build a diverse, real-world evidence dataset as a base for moving forward.

LONDON – The U.K. has launched a nationwide free testing program to diagnose COVID-19 in people who are asymptomatic, in the latest attempt to stem the tide of infection. Through the program, all local authorities will provide rapid testing using lateral flow devices. In addition, companies will be provided with free tests to set up workplace screening. Initially, the focus of both strands will be on getting people who cannot work from home to come forward for regular checks.

Helix Opco LLC, a company specializing in population genomics, has received de novo marketing authorization from the U.S. FDA for its whole exome sequencing platform, which covers roughly 20,000 genes. The San Mateo, Calif.-based company also picked up 510(k) clearance from the FDA for the first test to run on the Helix Laboratory Platform, a genetic health risk application for late-onset Alzheimer’s disease. That test has been cleared for over-the-counter use in conjunction with the Helix Laboratory Platform.

Pharmaceutical pain management has aided billions of patients, but has also created millions of cases of addiction, a problem that is driving research into pain. Omowunmi Sadik of the New Jersey Institutes of Technology, said on a recent webinar that the Biosensor Materials for Advanced Research & Technology (BioSMART) Center, is working on a suite of biosensors that may aid in the detection of the molecular markers associated with pain.