cialis tadalafil Layout table for study information Study Type Interventional Clinical Trial Actual Enrollment 166 participants Allocation Non- Randomized Intervention Model Parallel Assignment Masking None Open Label Primary Purpose Treatment Official Title A Phase IIIB IV, Open Label Study to Assess the Efficacy and Safety of a Pre- defined, Fixed Dose of Gonal- f Filled- by- Mass in a Prefilled Pen Based on Subject Baseline Characteristics, for Ovarian Stimulation in Subjects Undergoing in Vitro Fertilization IVF Actual Study Start Date September 22, 2004 Actual Primary Completion Date January 16, 2006 Actual Study Completion Date January 16, 2006