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.
Pre-Study Visits and Site Initiation Visits. Pre-Study Visits. Depending on the company you work for and the Standard Operating Procedures (SOPs), you may be required to complete an in-person Pre-Study Visit (PSV) before an investigator is initiated to join a clinical trial.