Why Navidea Biopharmaceuticals Inc. Shares Jumped

Navidea shares soar after announcing an encouraging post-hoc analysis of its phase 3 study involving Lymphoseek. Find out if shares can head even higher.

Jun 11, 2014 at 3:35PM

Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of Navidea Biopharmaceuticals (NYSEMKT:NAVB), a developer of diagnostics and radiopharmaceutical agents for the medical industry, jumped as much as 11% after announcing the results of a post-hoc analysis of its phase 3 clinical study of Lymphoseek in patients with head and neck cancer.

So what: According to the company's press release: "In the NEO3-06 Phase 3 study, Lymphoseek localization to lymph nodes showed a strong correlation with a full regional lymph node dissection and pathology analysis with a low false negative rate, a priority in identifying sentinel nodes. Lymphoseek was also observed to home preferentially to pathology-positive nodes at a higher rate than pathology-negative nodes." In other words, Lymphoseek was shown to be quite effective in identifying tumor-positive lymph nodes in early stages of clinical head and neck cancer, which is not only important for mapping which lymph nodes could be cancer active, but also in reducing exploratory surgery for patients with early-stage disease, and in maintaining as much lymphatic tissue as possible to help fight disease.

Now what: Sales of Lymphoseek have thus far been disappointing, to say the least. I've been quite bullish on Navidea's long-term outlook given that the need for cancer diagnostics, and a more personalized approach to cancer treatment, should only increase in the coming decade. However, Navidea's lack of a big partner may come back to haunt the company's ability to rapidly grow Lymphoseek. While still on my watchlist, I wouldn't be surprised, with profitability still a ways off, if Navidea's management team didn't try to maximize shareholder value by putting itself up on the auction block. Keep in mind this is pure speculation on my part; but with losses expected for many years down the road, this might be Navidea's best move for shareholders, and for its leading radiopharmaceutical agent.

Navidea shares may be soaring today, but it likely has a slim chance of keeping up with this top stock over the long run
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Sean Williams has no material interest in any companies mentioned in this article. You can follow him on CAPS under the screen name TMFUltraLong, track every pick he makes under the screen name TrackUltraLong, and check him out on Twitter, where he goes by the handle @TMFUltraLong.

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4 in 5 Americans Are Ignoring Buffett's Warning

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Jun 12, 2015 at 5:01PM

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David Hanson owns shares of Berkshire Hathaway and American Express. The Motley Fool recommends and owns shares of Berkshire Hathaway, Google, and Coca-Cola.We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.

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