Large Language Models (LLMs) are being used at an unprecedented rate in healthcare, which can fuel innovation in clinical trials. These powerful models, which can understand and generate human-like language output, are used to improve research design, patient recruitment, data analysis, and much more. However, we must follow the principles of Ethical AI as we decide how to use its great potential. By using Ethical AI techniques, we can ensure that including LLMs in clinical trials guarantees the values of objectivity, transparency, accountability, and respect for human rights.