Navidea Biopharmaceuticals, Inc. (NYSE MKT: NAVB), a biopharmaceutical company focused on the development and commercialization of precision diagnostic radiopharmaceuticals, today announced the peer-reviewed publication of results from two Phase 3 clinical trials of Lymphoseek ® (technetium 99m tilmanocept) Injection in patients with melanoma of the skin. The trials assessed the performance of Lymphoseek against the standard of care, vital blue dye (VBD), in lymphatic mapping. Results demonstrated that Lymphoseek met its primary efficacy endpoint of rate of agreement, or concordance, with VBD. Lymphoseek is a receptor-targeted radiopharmaceutical under development for use in lymphatic mapping, a procedure in which key lymph nodes adjacent to a primary tumor, that may contain tumor metastases, are identified and biopsied to determine if cancer has spread to these lymph nodes. The study, “Combined Analysis of Phase III Trials Evaluating [99mTc]Tilmanocept and Vital Blue Dye for Identification of Sentinel Lymph Nodes in Clinically Node-Negative Cutaneous Melanoma,” was published in the current online edition of the journal Annals of Surgical Oncology [DOI 10.1245/s10434-012-2612-z].
“Both the incidence rate and the death rate for melanoma continue to increase, in the United States and in many other parts of the world," said Vernon K. Sondak, M.D., Chair, Department of Cutaneous Oncology, Moffitt Cancer Center, Tampa Fla., and Principal Investigator for melanoma in the Lymphoseek Phase 3 clinical trials. "Most patients present with clinically localized disease, but microscopic metastases to the regional lymph nodes are common and are the major prognostic factor for these patients. Over the past 20 years, surgical staging of the regional nodes with intraoperative lymphatic mapping and sentinel node biopsy has emerged as the worldwide standard of care for patients with clinically node-negative intermediate and thick melanomas, and for selected patients with higher-risk thin primaries as well. New technologies offer the promise of improving intraoperative lymphatic mapping, potentially allowing procedures to be done rapidly and with less risk of misclassifying patients as node-negative when, in fact, their cancer has already spread to the regional nodes.”