Results from 12 patients isn't enough to get a drug approved, but it's certainly enough to get investors excited about Micromet
Nine of the 12 patients who took blinatumomab achieved a complete remission, meaning the leukemia was eradicated. A 75% response rate is pretty impressive, considering that all of the patients had already relapsed after a first round of therapy. Typically, this type of patient would see complete remissions in the 17% to 45% range.
Blinatumomab is designed to stimulate the patient's immune system to attack the cancer. Bristol-Myers Squibb's
The same molecule -- CD19 -- that the immune system homes in on is also present in non-Hodgkin's lymphoma, which blinatumomab is also in clinical trials for. The early success in ALL should give investors hope that it may work for that type of blood cancer as well.
The big loser in blinatumomab's success is AstraZeneca
Micromet can't say "I told you so" to AstraZeneca just yet, though. It'll need to run a larger trial to prove that the early results weren't just a fluke. The good news is that blinatumomab is so successful that it should be able to get on the market even if the data isn't quite as good as the early results.
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