TABLE 3.
Compound tested | Dose (mg/kg) | Dosing route | Duration (no. of days) | Avg. no. of days until relapse | No. of cured mice/total no. of mice | % cured |
---|---|---|---|---|---|---|
AN3520 | 50 | i.p. | 14 | 52.5 | 7/9 | 78 |
50 | i.p. | 7 | 57 | 12/17 | 71 | |
25 | i.p. | 14 | 51.6 | 2/10 | 20 | |
25 | i.p. | 7 | 39.1 | 1/17 | 6 | |
12.5 | i.p. | 7 | 35 | 0/8 | 0 | |
SCYX-6759 | 50 | i.p. | 14 | 10/10 | 100 | |
50 | p.o. | 7 | 56 | 5/6 | 83 | |
25 | p.o. | 7 | 38.8 | 2/10 | 20 | |
12.5 | p.o. | 7 | 35.7 | 1/10 | 10 | |
6 | p.o. | 7 | 36.6 | 1/10 | 10 | |
Diminazene aceturate | 10 | i.p. | 1 (D4) | 10/10 | 100 | |
10 | i.p. | 1 (D21) | 48.3 | 0/10 | 0 |
Mice were infected with 10,000 T. b. brucei TREU667 parasites, and the infection was allowed to progress for 21 days prior to initiation of treatment. Parasitemia was examined weekly, and cures were determined as described in Materials and Methods. Compounds were administered twice daily for 7 or 14 consecutive days. Diminazene aceturate was administered as a single i.p. dose on day 4 (D4) or day 21 (D21) to serve as positive and negative controls, respectively. Cured animals are defined as those that remained aparasitemic for >180 days after the start of the dosing period.