Experimental Blood Substitutes Unsafe, Study Finds
HealthDay News — Experimental hemoglobin-based blood substitutes boost the odds of death and heart attack for recipients, according to an exhaustive review of the data.
These products are not yet approved for use in the United States but have undergone extensive clinical testing.
The study, released early Monday by the Journal of the American Medical Association, has critics charging that the U.S. Food and Drug Administration failed to detect and act on a significant increase in heart attacks and deaths noted in trials of these laboratory-made blood substitutes.
That delay put participants in ongoing trials in jeopardy, they said.
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