Navidea Biopharmaceuticals, Inc. (NYSE MKT: NAVB), a biopharmaceutical company focused on precision diagnostic radiopharmaceuticals, today announced the first subject has been enrolled in its NAV4694 global, pivotal Phase 3 clinical trial. The trial will assess the safety and efficacy of NAV4694, an investigational PET imaging agent, in detecting cerebral β-amyloid in end-of-life subjects with and without the diagnosis of dementia. The study will examine the effectiveness of NAV4694 in detecting the presence or absence of β-amyloid deposition in the brain by directly correlating the PET image findings during life with those of the brain tissue upon autopsy after death.
Currently, only an autopsy can confirm that a person has Alzheimer's disease. “Knowing if a patient has Alzheimerʼs pathology in life would lead to improved diagnosis and patient management,” said Frederick Cope, PhD, FACN, Senior Vice President and Chief Scientific Officer at Navidea. “This study, which is designed to provide a direct comparison of patient images collected during life using a β-amyloid PET imaging agent with postmortem histopathology findings, has the potential to aid the advancement of neurodegenerative disease research and patient care.”
“We are excited to begin this pivotal Phase 3 trial for NAV4694. We believe that β-amyloid imaging has the potential to play an increasingly important role in clinical practice allowing for earlier diagnosis and therapeutic intervention,” said Connie Reininger, MD, PhD, Navidea’s Senior Vice President and Chief Medical Officer. “Results from earlier trials using NAV4694 support our conviction that the outstanding performance characteristics of this imaging biomarker, which include favorable sensitivity, specificity, rapid brain uptake and improved image clarity due to low white-matter uptake, position NAV4694 as a true ‘best-in-class’ second generation agent to aid in the diagnosis of Alzheimer’s disease and with the potential to enable diagnosis earlier in the course of disease.”
About the NAV4694 Phase 3 Clinical TrialThis study, NAV4-02, is a Phase 3, open-label, multiple-center, non-randomized study to assess the safety and efficacy of NAV4694 PET imaging in detecting cerebral β-amyloid in subjects during life when directly compared to brain histopathological evaluation at autopsy. The trial will enroll up to 275 end-of-life individuals in two cohorts either, 1) subjects diagnosed with probable Alzheimer’s disease or other form of dementia, or, 2) non-demented volunteers. The efficacy of NAV4694 PET for the detection of β-amyloid will be determined by the sensitivity and specificity of visual interpretation of NAV4694 uptake in the PET scans by blinded readers compared with the presence/absence of β-amyloid upon histopathological evaluation of the respective postmortem brain specimen in each subject. To learn more see the study listing on ClinicalTrials.gov http://www.clinicaltrials.gov/ct2/show/NCT01886820?term=navidea&rank=3. About NAV4694 NAV4694 is a Fluorine-18 labeled precision radiopharmaceutical candidate intended for use in Positron Emission Tomography (PET) imaging and evaluation of patients with signs or symptoms of cognitive impairment such as Alzheimer’s disease (AD). NAV4694 binds to β-amyloid deposits in the brain that can then be imaged in scans. β-amyloid plaque pathology is widely used in the diagnosis of AD. The ability of NAV4694 imaging to display amyloid plaque pathology may enable earlier identification of AD and improve monitoring of disease progression and interpretation of brain scan images. Navidea has an ongoing NAV4694 Phase 2b trial in Mild Cognitive Impairment and a Phase 3 program for NAV4694 in AD.