Thursday, July 31, 2014

Clinical Drug Trials and Contract Research: Need for Monitoring System





Clinical Drug Trials and Contract Research:  Need for Monitoring System




Finally the country has got its attention towards the unethical clinical trials following the Supreme Court judgment that central government and its various departments failed in controlling deaths and serious health hazards due to drug trials in human beings. The Supreme Court bench consisting of Justice R.M Lodha, Justice Kurian Joseph also reprimanded government for not giving compensation to the victims. The Supreme Court’s indictment was made in response to the petition submitted against illegal clinical trials by the Swasthya Adhikar Manch, the National activist group based in Indore.

A health centre in Trivandrum was also recently accused of conducting such unethical drug trials. In response, the suggestions made by the Committee with Dr. V. N Rajasekharan Pillai as Chairman have not been implemented even now. . It is not even confirmed that which agency has the authority to monitor clinical trials whether the Drug Controller or the Medical Education Department. 

The health department claims that there were strict rules on conducting trials. Only those who register in the clinical trials registry under Indian council of Medical research (ICMR) with sufficient information can have the right to do clinical trials.  It is also stipulated that the research papers prepared   on the basis of studies that are conducted without following the rules should not be published in any Medical Scientific Journals. In 2006, ICMR stipulated the Ethical Guidelines for Biomedical Research that should be strictly followed while conducting clinical trials. Besides this, the institutions conducting trials have to form an Institutional Ethics Committee consisting of medical and legal experts and its stipulated that only after getting clearance from this committee a trial can be initiated. But the arguments presented before the before the Supreme Court show that all the rules are getting violated.

During 2012-13 period due to drug trials around 4000 people suffered from serious health consequences and 1000 died as submitted by  Swasthya Adhikar Manch. But according to the Drug Controller, only 506 faced health problems from which 89 were died which still is alarming.  The multinational companies were choosing the developing countries like India for their experimentations due to various reasons. Its quiet expensive to discover and market a brand new drug in developed countries. About 40% of total budget need to be spent on phase three clinical trials. In developed countries conducting clinical trials on human subjects requires an approximate of 150 million dollars for each drug molecule. Only half of this amount need be spent in countries like India. The growing opposition of people from developed nations to be a part of such trials is also one of the reasons for MNCs to move to developing countries like India. . In US, the drug trials conducted on prisoners had to be discontinued due to opposition from human rights activists. In 1995, US conducted ran clinical trials on 4000 persons in different countries.  Through the clinical trial outsourcing 4 lakhs of subjects were recruited for such experiments in 1999. By 2005, about 40% of trials were transferred to the developing countries. The poor patients from countries like India for whom the treatment itself is not affordable are willing to receive the free medicines as the part of research. Only after obtaining the informed consent from the respective patient, the trials can be started in developed countries.

In India by utilizing the loopholes in law, absence of monitoring system and illiteracy of people, any studies can be done. Higher incidence of life style diseases in India is another reason why such trials are done in India.  For example it has reported that, there were 2 crore diabetic patients in India. Many anti diabetic drugs are in experimental phase. The genetic diversity due to presence of various diseases is also favorable for conducting such studies.  At the same time the pharmaceutical industries were not all interested in discovering drugs for diseases which are relevant to the developing countries or for those which affect only small population. Such diseases were referred to as Neglected Diseases and the drugs necessary for treating such diseases as Orphan Drugs. The Peoples Health Movement and health activists are demanding the establishment of global research fund for conducting relevant research without depending upon the MNCs.

 In 2005 amendments were made in Indian patent act as per World Trade Organization stipulations. Therefore the Indian Pharmaceutical Companies can no longer manufacture those drugs that patented in other countries by another process.  With the result that many of the Indian Pharmaceutical companies are now acting as agencies that carry out contract research for the multinational companies. In this way Indian companies received 200 million dollars in 2007. A business of ten billion crore dollars was carried out in 2010. The number of clinical trials registered in 2006 was 64 which increased to 425 and 1506 in 2009 and 2011 respectively. The Indian states like Maharashtra, Karnataka, Andhra Pradesh, Gujarat, Delhi and Tamil Nadu are were the states where clinical trials are done in large scale chosen. In 2007 and 2010, 132 and 670 human subjects respectively lost their lives due to the participation in trials. In 2011 the drug controller stated to Supreme Court that 2000 people subjected drug trials died and a very few of their families received compensation.
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The 59th report of the Parliamentary Standing Committee on Health and Family Welfare, presented on may 2012  had revealed that a number of drugs not subjected to clinical trials either in India or outside  are being sold in Indian market.  The report pointed that approval was given to market 33 such medicines during the period between January 2008 and October 2010. The report also noticed the failure of Central Drugs Standard Control of Organization, the nation’s main regulatory body for pharmaceuticals, in implementing its various activities. But the government did not take any appropriate action on rectify the problems pointed out by the report till today.

Many of the institutions that carry out clinical trials don’t have the basic facilities necessary to conduct such trials.  Among the 7 lakh practicing physicians, only less than thousand had received training in clinical research. The drug companies are offering INR 30,000/ patient to the hospital where drug trials are conducted. At the same time only 150 hospitals among 20,000 general hospitals are equipped with basic facilities to conduct trials. The amendments made in Indian drugs and cosmetics act 2005 also aided in conducting trails without much difficulty. Phase 1, 2, 3 of clinical trials involves drug testing on human beings. According to the existing regulatory provisions, the clinical trials should be conducted in other countries before being carried out in India.  But as per the amended rules it is not mandatory to conduct Phase 1, 2, 3 trials in other countries. . By utilizing these favorable conditions 20 lakhs patients are enrolled in 2010 for the trial of new chemical entities. The women from tribal community and lower socio economic status are being exploited for many unethical drug trials.  The Programme for Appropriate Technology in Heath (PATH) a US agency funded  by Bill and Melinda Gates Foundation  in partnership with state governments of Andhra Pradesh and Gujarat and ICMR implemented a vaccination trial programme to prevent cervical cancer in 2009. For the study 13791 and 10259 young adolescent girls from Khammam district of Andhra Pradesh and Vadodhara district of Gujarat respectively who belongs to indigenous community were recruited and vaccinated.  The health activists intervened and found that the study violated ethical norms and Indian laws and regulations following which the agencies concerned had to halt the trials in April 2010. But the state governments had not initiated any legal action against the organizers that violated the ethical norms.

The Peoples’ Health Movements are health activists are organizing various campaigns and awareness programmes highlighting the health issues resulting from unethical contract research and irregular clinical trials. They have also given the suggestion that a monitoring system should be established to closely observe the clinical trials being conducted as part of drug research outsourcing


Dr.B.Ekbal     .
 Former Vice Chancellor of the University of Kerala.
Health Activist,
Joint Convenor, Jan Swathya Abhiyan (Peoples Health Movement India)
and Consultant Neurosurgeon, Former Professor of Neurosurgery.
 

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