Wednesday, September 12, 2018

The cervical cancer screening trials in India

Over the next few weeks I will post an analysis of the criticism made by several authors associated with the Indian Journal of Medical Ethics against three trials in India to test various screening methods to prevent cervical cancer. The reason is that these trials have been used by the Ethics Dumping Project funded by the European Commission as paradigmatic examples of unethical research. They also form an important backdrop to the recent controversy over articles published by the same journal by vaccine critics, notably of the HPV vaccine. It is remarkable that these attacks on scientific research in the name of ethics are against interventions that have the potential to improve the health of women.


On April 21, 2014 this headline appeared in the Times of India: “Row over clinical trial as 254 women die”. The newspaper claims that the women in several US funded trials on the prevention of cervical cancer died because they were part of a control group of 140,000 women that did not receive any screening method. According to the critics the trials were unethical because the women in the control group should have received one of the available, proven effective cancer screening methods. Denying them access caused the unnecessary deaths. One of the critics, writing in the Indian Journal of Medical Ethics, pointed out that “these studies would not have been permitted in the country of the funding organizations (US National Cancer Institute and the Bill and Melinda Gates Foundation”.
In parallel, a US physician, Eric Suba, filed a complaint with the US Office of Human Research Protection (OHRP), charging that these trials were unethical because they did not provide any effective screening in the control groups. OHRP did not find any violation of the US regulations in the design of the studies (which was the basis for the criticism). However, they did conclude that the informed consent form in one of the trials was defective. The form did not adequately inform the participants about alternatives for screening outside of the clinical trial. The English version of the informed consent form did contain language that effective screening was available in clinics and the women could avail themselves of this opportunity. The translated local version did not contain this information.

The Indian Journal of Medical Ethics has carried a number of critical articles about these trials over the years. A respected bioethicist, Ruth Macklin, has strongly supported their arguments in the same journal. The EU funded and endorsed project on “Ethics dumping” has flagged these trials as typical examples of unethical practice. So how can this be? Trials funded by major organizations, endorsed by respected scientists in India, approved by Ethics Review Committees in India, reviewed by the main regulatory body in the US without any comments on the design, have nevertheless been criticized by the main bioethics journal in India, respected international bioethicists, and by a project endorsed and funded by the European Commission. Also, international organizations such as WHO have endorsed the trials as providing important results directly relevant for policies in low- and middle-income countries. It is clearly important to be clear about which version is true: Should these trials never have started? Or did they provide knowledge essential for public policy and not procurable by any other design? I will examine these questions in several posts of the next few weeks.