GlycoMimetics, Inc. has received a $15 million payment from Pfizer under the companies’ collaboration for the development of rivipansel (GMI-1070). Pfizer plans to initiate a Phase III trial of rivipansel, which will trigger an additional $20 million milestone payment to GlycoMimetics upon dosing of the first patient in the trial.   “Moving into Phase III will be a significant step forward in our effort to potentially address the unmet needs of individuals with sickle cell disease. With the comm...