Because of its overexpression in many solid tumors, gastrin-releasing peptide receptor (GRPR) represents a promising therapeutic target and imaging marker for cancer. Gastrin-releasing peptide (GRP) and bombesin are the natural ligands for GRPR. To improve in vivo stability, researchers at the University of British Columbia synthesized two 68Ga-labeled GRPR agonists by replacing Val and His sequences in GPR(20-27) and bombesin(7-14) with Tle and NMe-His, respectively.
The fibroblast activation protein (FAP) is a known biomarker expressed on the surface of cancer-associated fibroblasts (CAF), as well as an important target that distinguishes normal fibroblasts from CAF. Researchers from National Yang-Ming University recently reported the discovery and preclinical evaluation of a novel PET tracer, [18F]FEQGP, being developed for the detection of FAB expression in CAF imaging.
Four-repeat (4R)-tauopathies are neurodegenerative diseases whose main hallmarks are brain accumulations of specific protein tau isoforms that lead to syndromes such as progressive supranuclear palsy (PSP) or corticobasal syndrome. There are yet no sensitive-enough PET tracers for 4R-tauopathies.
Precision diagnostics company Inoviq Ltd.’s stock soared 44% on the news that its breast cancer diagnostic, SubB2M/CA15-3, detected all stages of breast cancer with 87% accuracy, 81% sensitivity and 93% specificity. The clinical validation study that included 483 samples outperformed the standard of care CAS15-3 test, demonstrating an area under the curve (AUC) of .93 compared to .70.
The U.K. government created a new £21 million ($US26.55 million) fund to accelerate the roll out of artificial intelligence (AI) diagnostics and treatment tools across the NHS. The AI Diagnostic Fund will enable hospitals to bid for funding to speed up the deployment of the most promising AI imaging and decision support tools to help patients with cancers, strokes and heart conditions.
The U.S. Office of Inspector General (OIG) has concluded an analysis that found fault with Medicare payments for genetic testing under CPT code 81408, a code that covers tests for a variety of mutations of medical interest. According to OIG, these claims were often paid $2,000 each despite poor oversight from Medicare administrative contractors (MACs), raising the risk that a substantial percentage of roughly $888 million in claims paid between 2018 and 2021 were either fraudulent or at best inappropriate.
The near $50 million cash injection Nvision Imaging Technologies GmbH recently received is “instrumental” as it will allow the company to take its hyperpolarized magnetic resonance imaging (MRI) technology to labs worldwide, CEO Sella Brosh told BioWorld. The German startup’s quantum technology makes MRI imaging up to 100,000 times more precise which will allow for the earlier diagnosis of cancer, better assessment of the risks involved and the ability to assess in a matter of days, whether treatment is working.
The U.S. FDA reported a pilot program for validation of lab-developed tests (LDTs) used as companion diagnostics, a move that seems an implicit recognition that test kits as CDx products are not the darlings of test developers. The program arrives as the agency is considering rulemaking for regulation of LDTs, however, a combination of developments that promises to roil the already strained relationship between the FDA and clinical labs.
A method for manufacturing graphene which significantly increases its electrochemically active surface area holds the potential to reduce the cost and increase the accuracy of biosensors and could provide the basis for amplification-free, label-free and enzyme-free in vitro diagnostics.
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