NEW YORK (TheStreet) -- Shares ofNeoStem (NBS) plummeted 25.52% to $5.05 in late morning trading Tuesdayafter the biotech company announced poor results from a trial of its proprietary cardiac stem-cell therapy NBS10.

NBS10, which used to be called AMR-001, missed two primary endpoints in the study to test the therapy's efficacy.The stem-cell therapy comesfrom a patient's own bone marrow and is injected into patients after a heart attack. The stem cells are then supposed to help blood flow and build cardiac muscle.

NeoStem's trial used non-invasive imaging to monitor blood flow through the heart six months after a one dose of NBS10 or a placebo. The study showed no difference between NBS and placebo, NeoStem said.

Must Read:NeoStem's Stem Cell Therapy Fails Mid-Stage Heart Attack Study

Jim Cramer and Stephanie Link reveal their investment tactics while giving advanced notice before every trade.

Access the tool that DOMINATES the Russell 2000 and the S&P 500.

Jim Cramer's protg, David Peltier, uncovers low dollar stocks with extraordinary upside potential that are flying under Wall Street's radar.

Continued here:

NeoStem (NBS) Stock Plummets Today on Disappointing Cardiac Stem-Cell Therapy Data