Rogue experiments: When healers kill

It’s 1946. On one side of the Atlantic, American lawyers are prosecuting Nazi doctors at Nuremberg for crimes against humanity — so-called “research” carried out on concentration camp prisoners. On the other side of the Atlantic, in Guatemala, the United States Public Health Service (PHS) is deliberately infecting prisoners and mental patients with syphilis in another “experiment” aimed at replacing the ineffective drugs used by soldiers during the war that had just ended.

It sounds too perverse to be true. Yet a special commission appointed by US President Barack Obama has just confirmed that the Guatemalan experiments really did take place. Obama has also issued an apology to the people of Guatemala. But why did it take so long to get to this point?

Sixty-three years after the Guatemalan experiments, an American historian, Susan Reverby, was rummaging through archived medical papers from the ’40s. Reverby was completing a final task in her two decades of studying the PHS’s detestable Tuskegee experiments, in which hundreds of African-American men with late-stage syphilis were observed but not treated, even after penicillin was developed. She was examining the papers of Thomas Parran, US surgeon-general from 1936-1948, when the Tuskegee research was already in full swing. So, too, she found, was the previously unknown Guatemalan experiment.

For years, Tuskegee has been a byword for ethical abuses in scientific research — to the extent that President Bill Clinton apologised to its surviving “subjects.” Hard as it may be to believe, as Reverby was to discover, the abuse in Guatemala was even more egregious. As Reverby put it, “I’d spent nearly two decades explaining that there had been no inoculation at Tuskegee, that while the PHS had used deplorable ethics, they had never infected anyone with syphilis.” That was not true in Guatemala. There, “the US government’s health service had deliberately infected 427 Guatemalan men and women, prisoners and mental patients, with syphilis.”

One should view the Guatemalan study as an extreme example of the biggest ethical problems in research today. Now, as then, richer developed countries are able to put pressure on weaker, poorer ones. A report in 2010 revealed that foreign citizens made up more than three-quarters of all the subjects in clinical trials conducted by US firms and researchers. The US Food and Drug Administration inspected only 45 of these sites, about 0.7 per cent. There is no suggestion that Third World patients are deliberately being made ill when research is outsourced but that does not attenuate the inherent vulnerability of populations lacking basic medical care or experiencing epidemics.

During a major meningitis epidemic in northern Nigeria in 1996, the drug company Pfizer supplied doctors with the oral antibiotic Trovan, which the firm wanted to test against the most effective known drug, Ceftriaxone, as a “control.” The Trovan trial nonetheless caused a storm of controversy, for two reasons. First, even if the trials proved favourable, Trovan was never intended for sale in Africa, but rather for the US and European markets.

Second, the sparsely staffed clinical teams were already facing measles and cholera epidemics as well.

As Jean Hervé Bradol, who was president of Médecins sans Frontières at the time and led its African teams, put it: “It was not a time for a drug trial at all. They were panicking in the hospital, overrun by cases on the verge of dying. The team were shocked that Pfizer continued the so-called scientific work in the middle of hell.”

Nowadays, another major controversy has erupted in several Indian states, owing to a research project to vaccinate girls against cervical cancer — an issue that has now entered the US presidential campaign, because Texas’s governor, Rick Perry backed a similar mandatory program. While preventing cervical cancer might seem a genuine benefit, critics charge that the program seems to be mainly about meeting targets, rather than serving the health-care needs of disadvantaged groups.

Apart from one recommendation — to create a government compensation program for Third World nationals harmed by trials intended to benefit First World subjects — US Presidential Commission for the Study of Bioethical Issues did not get much beyond vague notions of community engagement and transparency. But, with 70 per cent of all drug trials now conducted by private companies, such concepts won’t go very far towards tougher regulation.

And why should government should pay the costs anyway? Because private companies reap the benefits of the trials that do succeed, they should also shoulder the risks.

Donna Dickenson, Emeritus Professor of Medical Ethics and Humanities at the University of London, was the 2006 winner of the International Spinoza Lens Award for contributions to public debate on ethics

Copyright: Project Syndicate, 2011