Lyme disease, caused by the bacteria Borrelia burgdorferi and transmitted by Ixodes ticks, is expanding in many countries, posing a significant global health concern. The outer surface protein A (OspA) of B. burgdorferi is currently the most promising target for vaccine development, primarily because of its broad conservation among different bacterial strains that cause the disease. In a recent publication, researchers from the University of Pennsylvania and collaborators proposed using a lipid nanoparticle-encapsulated nucleoside-modified mRNA (mRNA-LNP) platform, similar to that of clinical vaccines against SARS-CoV-2, to develop a vaccine against Lyme disease.
Twelve months after a single shot of Valneva SE’s chikungunya vaccine, positive antibody persistence was found, threatening a deadly disease that has long resisted treatment. The new data are derived from a study of 363 healthy adult participants that followed them from month 6 after vaccination to month 12. Nearly all, 99%, kept their neutralizing antibody titers for 12 months beyond the seroresponse threshold of 150, which hit the primary endpoint and the antibody level agreed with regulators as endpoint under the accelerated approval pathway.
Valneva SE has struggled to get its COVID-19 vaccine on the market, but efforts to get the first Lyme disease vaccine approved in years now appear firmly on track after partner Pfizer Inc. invested €90.5 million (US$94.9 million) in the project. New York-based Pfizer has been working with Saint-Herblain, France based Valneva on the Lyme disease vaccine since April 2020, when the big pharma bought into the development program for the vaccine candidate codenamed VLA-15 for $130 million.
Adaptive Biotechnologies Corp. launched T-Detect Lyme, a T-cell-based clinical test to detect immune response activated by Borrelia burgdorferi, the bacterial species of spirochete that causes Lyme disease. The CLIA-validated laboratory-developed test (LDT) is meant to help diagnose early Lyme disease in adults showing signs and symptoms of the tick-borne illness.
Lyme disease is the most common vector-borne disease in the U.S. and is also common in certain areas of Europe. Yet, despite this, there are no FDA-approved vaccines available to treat it, meaning those diagnosed must receive a dose of antibiotics. But antibiotics are problematic because of the risk of treatment-resistant strains emerging. That leaves a pressing need for a vaccine or other way to prevent infections from the tick-borne bacterium Borrelia burgdorferi.
A newly developed messenger RNA vaccine is the first such approach to elicit acquired resistance against the tick Ixodes scapularis and prevent it from transmitting the Lyme disease vector Borrelia burgdorferi in guinea pigs, according to a U.S. study led by researchers at Yale University School of Medicine in New Haven, Conn.
The latest global regulatory news, changes and updates affecting medical devices and technologies, including: HHS posts request for information for Lyme diagnostics; NICE: Stak device backed by one 35-enrollee study.
Perkinelmer Inc. is aiming to boost its infectious disease testing footprint with the acquisition of Oxford Immunotec Global plc for $591 million in cash. The purchase, reported Thursday, will allow Perkinelmer to expand its current offerings with solutions for tuberculosis (TB) detection. Perkinelmer shares (NYSE:PKI) hit a high of $162.16 Thursday morning, before closing at $160.53 – up 2.66% from the Wednesday’s close of $156.37.
The latest global regulatory news, changes and updates affecting medical devices and technologies, including: ICER cost models going global; Canada prepares for ICH Q12; HHS partners on Lyme innovation; AMA adds codes for COVID-influenza testing; MedPAC concerned about post-pandemic telehealth; CMS: CLIA audits yield cease-and-desist letters.
The latest global regulatory news, changes and updates affecting biopharma, including: ICER cost models going global; Canada prepares for ICH Q12; HHS partners on Lyme innovation.
