Table 5.
Incidence of Neoplasms exhibiting significant change in mice
| Effect | Vehicle Control | 2.5 mg/kg | 12.5 mg/kg | 25 mg/kg | |
|---|---|---|---|---|---|
| Male | |||||
| Small Intestine, Carcinomaa | ↑ | 0/50 (0%)$ | 1/50(2%) | 2/50 (4%) | 4/50 (8%) |
| Small Intestine, Adenoma or Carcinomab | ↑ | 1/50 (2%)$ | 2/50 (4%) | 4/50 (8%) | 6/50 (12%) |
| Alveolar/bronchiolar Carcinoma (includes multiple)c | ↑ | 1/50 (2%)$ | 4/50 (8%) | 5/50 (10%) | 7/50 (14%)* |
| Female | |||||
| Alveolar/bronchiolar Carcinoma (includes multiple) | ↓ | 5/50 (10%) | 0/50 (0%)* | 0/50 (0%)* | 1/50 (2%) |
| Malignant lymphomad | ↑ | 6/50(4%)$ | 2/50(8%) | 9/50 (18%) | 12/50 (24%) |
Significantly different (P≤0.05) from vehicle control by the Poly−3 test
(P≤0.01)
Significant by Poly−3 trend test (P≤0.05)
Historical incidence for 2−year studies, all routes, all vehicles (mean ± standard deviation): 33/1,508 (2.2% ± 2.7%), range 0%−10%
Historical incidence: 39/1,508 (2.6% ± 2.8%), range 0%−10%
Historical incidence: 151/1,507 (9.9% ± 5.0%), range 4%−24%
Historical incidence: 308/1,508 (19.7% ± 13.3%), range 6%−58%