TURK PSIKIYATRI DERGISI, cilt.19, sa.4, ss.418-426, 2008 (SSCI)
Pharmaceutical industry revenues from global pharmaceutical sales have increased 7% to $602 billion in 2005. Approximately 15% of these revenues were spent on clinical research and drug development studies. Because of the huge budget allocated to research and development studies the number of studies being conducted by pharmaceutical companies has increased. The impact of the pharmaceutical industry on clinical trials has been affected by financial conflicts of interest between researchers and the industry.