ERBB2 and neoplasm: On day 24 following the first injection of the test reagents, aCX73 (average 390.1 mm3, P < 0.05) and aCX82 (average 375.3 mm3, P < 0.05) also showed a statistically significant reduction of tumor volumes compared to the negative control antibody Her2-13C1 (average 554.4 mm3) (Figures 10A, B).