A zipper carton assembly for receiving a blinded trial product includes a carton body having an encircling side wall, a floor, and a covering that together bound an inner compartment for receiving the blinded trial product, an adhesive layer disposed on a portion of the covering, and a removable liner covering at least a portion of adhesive layer. The covering includes an inner closure panel that folds into a closed position to selectively cover an access opening to the inner compartment and an opposing outer closure panel that folds over and is secured to a portion of the inner closure panel by means of the adhesive layer. The removable liner covers the adhesive layer until the zipper carton assembly is ready for sealing. The sealed zipper carton assembly can be opened by removing a zipper tear strip formed in a portion of the covering.