Company's ending heart-related work called
unethical
By Associated Press, 4/23/2003
HICAGO -- In a scathing
condemnation of the pharmaceutical industry, editors at one of the
nation's top medical journals said a company shortchanged science by
halting a large study of high blood pressure drugs to save money.
The Journal of the American Medical Association published the incomplete
study today to highlight a practice its editors call highly unethical --
particularly since it involved treatment for a dangerous condition that affects
millions of people worldwide.
''How can a sponsor do this when everybody . . . particularly the patients,
have given their energy, their blood, their bodies . . . and suddenly they're
just blown off?'' said Dr. Drummond Rennie, a deputy JAMA editor.
The study was designed to see if a medicine called Covera was as effective as
two other hypertension drugs at preventing heart-related complications of high
blood pressure. Covera, known generically as verapamil, appears to have been
similarly effective but the data are incomplete.
The study began in 1996 and ended in 2000, two years early.
Covera was originally made by G.D. Searle, which later became part of
Pharmacia Corp. Pharmacia was bought this month by Pfizer. Vanessa McGowan, a
spokeswoman for Pfizer, said the company had only limited information on the
study and could not comment on it.
A data analysis after the study was stopped showed signs that Covera might be
slightly better at preventing heart attacks than atenolol and the diuretic
hydrochlorothiazide, lead researcher Dr. Henry Black said.
Neither the company nor researchers knew the results until that analysis,
Black said. He said the company cited ''commercial reasons,'' with no
elaboration, for halting the study.
The study involved 16,602 patients with high blood pressure and was conducted
at 661 centers in 15 countries. It was halted after the company had already
spent about $50 million, said Black, dean of research at Chicago's
Rush-Presbyterian-St. Luke's Medical Center.
Aborting the study prevented researchers from making a valid comparison, said
Black, who called the company's actions unethical.
Dr. Catherine DeAngelis, JAMA's editor, agreed. ''While you might understand
it from an economic standpoint, from an ethical standpoint'' it's wrong, she
said.
The aborted study and a critical editorial by Rennie and University of
Washington heart specialist Dr. Bruce Psaty appear in today's JAMA.
''The responsible conduct of medical research involves a social duty and
moral responsibility that transcends quarterly business plans,'' the editorial
said.
Black said the Covera study's participants received free blood pressure drugs
and medical care, and most were understanding about halting the study.
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