Photograph by Darlyne A. Murawski, National Geographic. The peanut worm has a proboscis that resembles an elephantâs trunk, as well as a mouth that boasts an impressive array of tentacles. This bottom burrower feeds on organic materials found in mud and sand, and when done feasting it can turn the proboscis inside out to retract it inside its body.
Early clinical development is primarily composed of human proof of principle/pilot clinical studies â to confirm feasibility in human, explore patient populations and performance claims. Concomitantly, subsequent clinical trials are outlined and prepared for.
Preclinical research. Before conducting any clinical trials in people, doctors must prove that their explanation on how the treatment works is right. This explanation is called the research hypothesis. The research community calls this stage, which takes place in a laboratory, preclinical research.