👉 Several unethical and often tragic human experimentation projects have been canceled throughout history, such as the infamous Tuskegee Syphilis Study conducted by the US Public Health Service where African American men with syphilis were not offered effective treatment despite its availability, resulting in numerous deaths and severe suffering. Similarly, the Willowbrook State School hepatitis experiments conducted on children with mental illness for research purposes ended due to public outcry, leading to major reforms in institutional research ethics.
