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A federal investigation has found that heart attack survivors enrolled in a study of a controversial alternative medicine treatment were not told enough about potential dangers from the drug being tested, including death.
The study is testing chelation — infusions of a drug that in this case has been removed from the market for safety concerns. A different type of chelation is used to treat lead poisoning.
Findings from the investigation were revealed this week by the U.S. Office for Human Research Protections in a letter to the three medical centers leading the study.
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