Navidea Biopharmaceuticals Data to be Presented at Society of Nuclear Medicine and Molecular Imaging Annual Meeting

DUBLIN, Ohio--(BUSINESS WIRE)-- Navidea Biopharmaceuticals, Inc. (NYSE American: NAVB) (“Navidea” or the “Company”), a company focused on the development of precision immunodiagnostic agents and immunotherapeutics, today announced that Arash Kardan, M.D., will give an oral presentation on the results of the Company’s NAV3-21 clinical study at the Society of Nuclear Medicine and Molecular Imaging (“SNMMI”) Annual Meeting in June 2019. The presentation is titled “A Phase I/Phase II Study of Intravenously (“IV”) Administered Tc99m Tilmanocept (“TCT”) to Determine Safety, Tolerability, Optimal Clinical Dose Selection, and Imaging Timepoint in Patients Clinically Diagnosed with Rheumatoid Arthritis (“RA”)." In addition, an abstract of the presentation will be published in the Journal of Nuclear Medicine.

The NAV3-21 study enrolled subjects with active, moderate-to-severe RA and healthy controls. Images were acquired one hour and three hours post-injection of Tc99m tilmanocept. Results from the completed trial demonstrate that Tc99m tilmanocept is well-tolerated with no serious adverse events, adverse drug reactions, or drug-related adverse events observed. Additionally, static planar images revealed joint-specific Tc99m tilmanocept localization in RA subjects to disease-involved joints of the shoulders, knees, hands, and feet, but no joint-specific localization in healthy control subjects, revealing potentially significant immunodiagnostic information about CD206-expressing synovial macrophage involvement in RA. Enhanced anatomic delineation in tilmanocept-positive joints of RA patients was noted via IV administration in this trial when compared to subcutaneous administration of Tc99m tilmanocept studied in a previously-completed Phase 1 trial.

Michael Rosol, Chief Medical Officer for Navidea, said, “Using noninvasive planar imaging and SPECT/CT with Tc99m tilmanocept we can, for the first time, objectively visualize and directly quantify RA disease activity and evaluate joint-specific inflammation. This could also enable noninvasive characterization of joint-level pathobiology and individualization of treatment.” Dr. Rosol continued, “The results from this and our previously completed RA trial support our initiative for follow-on Phase 2b and Phase 3 studies intended to garner FDA approval of new indications for Tc99m tilmanocept in RA patients.”

RA is a chronic disease affecting over 1.3 million Americans and as much as 1% of the worldwide population.1 If the product is successfully developed, Navidea would expect to play a major role in the management of RA patients worldwide.

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About Navidea

Navidea Biopharmaceuticals, Inc. (NYSE American: NAVB) is a biopharmaceutical company focused on the development of precision immunodiagnostic agents and immunotherapeutics. Navidea is developing multiple precision-targeted products based on its Manocept™ platform to enhance patient care by identifying the sites and pathways of disease and enable better diagnostic accuracy, clinical decision-making, and targeted treatment. Navidea’s Manocept platform is predicated on the ability to specifically target the CD206 mannose receptor expressed on activated macrophages. The Manocept platform serves as the molecular backbone of Tc99m tilmanocept, the first product developed and commercialized by Navidea based on the platform. The development activities of the Manocept immunotherapeutic platform are being conducted by Navidea in conjunction with its subsidiary, Macrophage Therapeutics, Inc. Navidea’s strategy is to deliver superior growth and shareholder return by bringing to market novel products and advancing the Company’s pipeline through global partnering and commercialization efforts.

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Navidea Biopharmaceuticals, Inc.
Jed Latkin, CEO, 614-973-7490

Source: Navidea Biopharmaceuticals, Inc.