In this 21st century, we stand on the forefront of the next industrial revolution – the fourth industrial revolution. This time, the revolution will be based on services rather than products. World-renowned economists have predicted that the service in question will be Artificial Intelligence or Cognitive Computing. Let us take the example of a simple clinical trial where the medical staff manually collects data from the patients and provides to the assigned investigators. This process is extremely time-consuming. In a world soaring high on the wings of cognitive computing and artificial intelligence we can predict direct involvement of the patients. Even nowadays there are several personal wearable devices which can provide real-time information about the patients which will significantly help the medical staff and investigators alike. The meager participation of patients and investigators is often an uphill task. In such cases, cognitive computing can introduce patient and investigator alike to the respected pharmaceutical company at low cost. The right treatment plan needs to be set up for the right patient for maximum effectiveness which can also be directed thanks to cognitive computing. These are among the very small applications listed in the field of clinical trials by Artificial Intelligence or Cognitive Computing. Once these gets implemented more and more ideas will start flooding in making this field also a cost-benefit area.