Table 1.

Summary of Trialed Ivermectin Treatment Regimens

Group	Dose	Frequency	Descriptiona
1, Standard	150 µg/kg	Annual	3 × 150 µg/kg annually for 3 years
2, High dose	400–800 µg/kg	Annual	1 × 400 µg/kg and then 2 × 800 µg/kg for 2 years
3, High frequency	150 µg/kg	3-monthly	12 × 150 µg/kg 3-monthly for 3 years
4, High dose, high frequency	400–800 µg/kg	3-monthly	2 × 400 µg/kg and then 10 × 800 µg/kg for 2.5 years

^aAll individuals were additionally treated with a clearing dose of 150 µg/kg 3 months prior to the start of the study (immediately after the baseline nodulectomy) and with a final dose of 150 µg/kg 6 months after the final treatment.