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Table 4 Oocyte quality (ITT population)

From: Randomized, active-controlled, comparative phase 3 efficacy and safety equivalence trial of Ovaleap® (recombinant human follicle-stimulating hormone) in infertile women using assisted reproduction technology (ART)

Characteristic Ovaleap® (n = 144) Gonal-f® (n = 135)
Oocyte quality, n (%) of oocytes   
 Z1 (best) 188 (20.7) 164 (21.1)
 Z2 337 (37.0) 305 (39.2)
 Z3 278 (30.5) 227 (29.1)
 Z4 (worst) 107 (11.8) 83 (10.7)
Total 2 PN oocytes 910 (100.0) 779 (100.0)
  1. ITT intent-to-treat, PN pronucleus
  2. Z score = zygote scoring system of Scott et al. 2000 [12]