Table 4

Effect of p.o. ZD1611 on pressor responses to big ET-1 in dogs

ED20 (95% CLs)n
3 h5 h
nmol/kg
Vehicle0.3  (0.2–0.5)0.3  (0.3–0.4)4
ZD1611 (0.6 mg/kg p.o.)1.3  (1.1–1.5)4-150 0.7  (0.4–1.2)** 4

Values are the geometric mean dose of big ET-1 required to give an increase in MAP of 20 mm Hg. Dogs were treated with either vehicle or p.o. ZD1611, and comparisons were made between animals.

  • 4-150p < .001, ** p < .05 compared with vehicle control.